Fixed MTP to work with TWRP

arch/mips/include/asm/Kbuild

@@ -0,0 +1,21 @@
+# MIPS headers
+generic-y += cputime.h
+generic-y += current.h
+generic-y += dma-contiguous.h
+generic-y += emergency-restart.h
+generic-y += hash.h
+generic-y += irq_work.h
+generic-y += local64.h
+generic-y += mcs_spinlock.h
+generic-y += mutex.h
+generic-y += parport.h
+generic-y += percpu.h
+generic-y += preempt.h
+generic-y += scatterlist.h
+generic-y += sections.h
+generic-y += segment.h
+generic-y += serial.h
+generic-y += trace_clock.h
+generic-y += ucontext.h
+generic-y += user.h
+generic-y += xor.h

arch/mips/include/asm/abi.h

@@ -0,0 +1,25 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2005, 06 by Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2005 MIPS Technologies, Inc.
+ */
+#ifndef _ASM_ABI_H
+#define _ASM_ABI_H
+
+#include <asm/signal.h>
+#include <asm/siginfo.h>
+
+struct mips_abi {
+	int (* const setup_frame)(void *sig_return, struct ksignal *ksig,
+				  struct pt_regs *regs, sigset_t *set);
+	const unsigned long	signal_return_offset;
+	int (* const setup_rt_frame)(void *sig_return, struct ksignal *ksig,
+				     struct pt_regs *regs, sigset_t *set);
+	const unsigned long	rt_signal_return_offset;
+	const unsigned long	restart;
+};
+
+#endif /* _ASM_ABI_H */

arch/mips/include/asm/addrspace.h

@@ -0,0 +1,154 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 99 Ralf Baechle
+ * Copyright (C) 2000, 2002  Maciej W. Rozycki
+ * Copyright (C) 1990, 1999 by Silicon Graphics, Inc.
+ */
+#ifndef _ASM_ADDRSPACE_H
+#define _ASM_ADDRSPACE_H
+
+#include <spaces.h>
+
+/*
+ *  Configure language
+ */
+#ifdef __ASSEMBLY__
+#define _ATYPE_
+#define _ATYPE32_
+#define _ATYPE64_
+#define _CONST64_(x)	x
+#else
+#define _ATYPE_		__PTRDIFF_TYPE__
+#define _ATYPE32_	int
+#define _ATYPE64_	__s64
+#ifdef CONFIG_64BIT
+#define _CONST64_(x)	x ## L
+#else
+#define _CONST64_(x)	x ## LL
+#endif
+#endif
+
+/*
+ *  32-bit MIPS address spaces
+ */
+#ifdef __ASSEMBLY__
+#define _ACAST32_
+#define _ACAST64_
+#else
+#define _ACAST32_		(_ATYPE_)(_ATYPE32_)	/* widen if necessary */
+#define _ACAST64_		(_ATYPE64_)		/* do _not_ narrow */
+#endif
+
+/*
+ * Returns the kernel segment base of a given address
+ */
+#define KSEGX(a)		((_ACAST32_ (a)) & 0xe0000000)
+
+/*
+ * Returns the physical address of a CKSEGx / XKPHYS address
+ */
+#define CPHYSADDR(a)		((_ACAST32_(a)) & 0x1fffffff)
+#define XPHYSADDR(a)		((_ACAST64_(a)) &			\
+				 _CONST64_(0x0000ffffffffffff))
+
+#ifdef CONFIG_64BIT
+
+/*
+ * Memory segments (64bit kernel mode addresses)
+ * The compatibility segments use the full 64-bit sign extended value.  Note
+ * the R8000 doesn't have them so don't reference these in generic MIPS code.
+ */
+#define XKUSEG			_CONST64_(0x0000000000000000)
+#define XKSSEG			_CONST64_(0x4000000000000000)
+#define XKPHYS			_CONST64_(0x8000000000000000)
+#define XKSEG			_CONST64_(0xc000000000000000)
+#define CKSEG0			_CONST64_(0xffffffff80000000)
+#define CKSEG1			_CONST64_(0xffffffffa0000000)
+#define CKSSEG			_CONST64_(0xffffffffc0000000)
+#define CKSEG3			_CONST64_(0xffffffffe0000000)
+
+#define CKSEG0ADDR(a)		(CPHYSADDR(a) | CKSEG0)
+#define CKSEG1ADDR(a)		(CPHYSADDR(a) | CKSEG1)
+#define CKSEG2ADDR(a)		(CPHYSADDR(a) | CKSEG2)
+#define CKSEG3ADDR(a)		(CPHYSADDR(a) | CKSEG3)
+
+#else
+
+#define CKSEG0ADDR(a)		(CPHYSADDR(a) | KSEG0)
+#define CKSEG1ADDR(a)		(CPHYSADDR(a) | KSEG1)
+#define CKSEG2ADDR(a)		(CPHYSADDR(a) | KSEG2)
+#define CKSEG3ADDR(a)		(CPHYSADDR(a) | KSEG3)
+
+/*
+ * Map an address to a certain kernel segment
+ */
+#define KSEG0ADDR(a)		(CPHYSADDR(a) | KSEG0)
+#define KSEG1ADDR(a)		(CPHYSADDR(a) | KSEG1)
+#define KSEG2ADDR(a)		(CPHYSADDR(a) | KSEG2)
+#define KSEG3ADDR(a)		(CPHYSADDR(a) | KSEG3)
+
+/*
+ * Memory segments (32bit kernel mode addresses)
+ * These are the traditional names used in the 32-bit universe.
+ */
+#define KUSEG			0x00000000
+#define KSEG0			0x80000000
+#define KSEG1			0xa0000000
+#define KSEG2			0xc0000000
+#define KSEG3			0xe0000000
+
+#define CKUSEG			0x00000000
+#define CKSEG0			0x80000000
+#define CKSEG1			0xa0000000
+#define CKSEG2			0xc0000000
+#define CKSEG3			0xe0000000
+
+#endif
+
+/*
+ * Cache modes for XKPHYS address conversion macros
+ */
+#define K_CALG_COH_EXCL1_NOL2	0
+#define K_CALG_COH_SHRL1_NOL2	1
+#define K_CALG_UNCACHED		2
+#define K_CALG_NONCOHERENT	3
+#define K_CALG_COH_EXCL		4
+#define K_CALG_COH_SHAREABLE	5
+#define K_CALG_NOTUSED		6
+#define K_CALG_UNCACHED_ACCEL	7
+
+/*
+ * 64-bit address conversions
+ */
+#define PHYS_TO_XKSEG_UNCACHED(p)	PHYS_TO_XKPHYS(K_CALG_UNCACHED, (p))
+#define PHYS_TO_XKSEG_CACHED(p)		PHYS_TO_XKPHYS(K_CALG_COH_SHAREABLE, (p))
+#define XKPHYS_TO_PHYS(p)		((p) & TO_PHYS_MASK)
+#define PHYS_TO_XKPHYS(cm, a)		(_CONST64_(0x8000000000000000) | \
+					 (_CONST64_(cm) << 59) | (a))
+
+/*
+ * The ultimate limited of the 64-bit MIPS architecture:  2 bits for selecting
+ * the region, 3 bits for the CCA mode.  This leaves 59 bits of which the
+ * R8000 implements most with its 48-bit physical address space.
+ */
+#define TO_PHYS_MASK	_CONST64_(0x07ffffffffffffff)	/* 2^^59 - 1 */
+
+#ifndef CONFIG_CPU_R8000
+
+/*
+ * The R8000 doesn't have the 32-bit compat spaces so we don't define them
+ * in order to catch bugs in the source code.
+ */
+
+#define COMPAT_K1BASE32		_CONST64_(0xffffffffa0000000)
+#define PHYS_TO_COMPATK1(x)	((x) | COMPAT_K1BASE32) /* 32-bit compat k1 */
+
+#endif
+
+#define KDM_TO_PHYS(x)		(_ACAST64_ (x) & TO_PHYS_MASK)
+#define PHYS_TO_K0(x)		(_ACAST64_ (x) | CAC_BASE)
+
+#endif /* _ASM_ADDRSPACE_H */

arch/mips/include/asm/amon.h

@@ -0,0 +1,12 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2013 Imagination Technologies Ltd.
+ *
+ * Arbitrary Monitor Support (AMON)
+ */
+int amon_cpu_avail(int cpu);
+int amon_cpu_start(int cpu, unsigned long pc, unsigned long sp,
+		   unsigned long gp, unsigned long a0);

arch/mips/include/asm/arch_hweight.h

@@ -0,0 +1,38 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ */
+#ifndef _ASM_ARCH_HWEIGHT_H
+#define _ASM_ARCH_HWEIGHT_H
+
+#ifdef ARCH_HAS_USABLE_BUILTIN_POPCOUNT
+
+#include <asm/types.h>
+
+static inline unsigned int __arch_hweight32(unsigned int w)
+{
+	return __builtin_popcount(w);
+}
+
+static inline unsigned int __arch_hweight16(unsigned int w)
+{
+	return __builtin_popcount(w & 0xffff);
+}
+
+static inline unsigned int __arch_hweight8(unsigned int w)
+{
+	return __builtin_popcount(w & 0xff);
+}
+
+static inline unsigned long __arch_hweight64(__u64 w)
+{
+	return __builtin_popcountll(w);
+}
+
+#else
+#include <asm-generic/bitops/arch_hweight.h>
+#endif
+
+#endif /* _ASM_ARCH_HWEIGHT_H */

arch/mips/include/asm/asm-eva.h

@@ -0,0 +1,184 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2014 Imagination Technologies Ltd.
+ *
+ */
+
+#ifndef __ASM_ASM_EVA_H
+#define __ASM_ASM_EVA_H
+
+#ifndef __ASSEMBLY__
+
+/* Kernel variants */
+
+#define kernel_cache(op, base)		"cache " op ", " base "\n"
+#define kernel_ll(reg, addr)		"ll " reg ", " addr "\n"
+#define kernel_sc(reg, addr)		"sc " reg ", " addr "\n"
+#define kernel_lw(reg, addr)		"lw " reg ", " addr "\n"
+#define kernel_lwl(reg, addr)		"lwl " reg ", " addr "\n"
+#define kernel_lwr(reg, addr)		"lwr " reg ", " addr "\n"
+#define kernel_lh(reg, addr)		"lh " reg ", " addr "\n"
+#define kernel_lb(reg, addr)		"lb " reg ", " addr "\n"
+#define kernel_lbu(reg, addr)		"lbu " reg ", " addr "\n"
+#define kernel_sw(reg, addr)		"sw " reg ", " addr "\n"
+#define kernel_swl(reg, addr)		"swl " reg ", " addr "\n"
+#define kernel_swr(reg, addr)		"swr " reg ", " addr "\n"
+#define kernel_sh(reg, addr)		"sh " reg ", " addr "\n"
+#define kernel_sb(reg, addr)		"sb " reg ", " addr "\n"
+
+#ifdef CONFIG_32BIT
+/*
+ * No 'sd' or 'ld' instructions in 32-bit but the code will
+ * do the correct thing
+ */
+#define kernel_sd(reg, addr)		user_sw(reg, addr)
+#define kernel_ld(reg, addr)		user_lw(reg, addr)
+#else
+#define kernel_sd(reg, addr)		"sd " reg", " addr "\n"
+#define kernel_ld(reg, addr)		"ld " reg", " addr "\n"
+#endif /* CONFIG_32BIT */
+
+#ifdef CONFIG_EVA
+
+#define __BUILD_EVA_INSN(insn, reg, addr)				\
+				"	.set	push\n"			\
+				"	.set	mips0\n"		\
+				"	.set	eva\n"			\
+				"	"insn" "reg", "addr "\n"	\
+				"	.set	pop\n"
+
+#define user_cache(op, base)		__BUILD_EVA_INSN("cachee", op, base)
+#define user_ll(reg, addr)		__BUILD_EVA_INSN("lle", reg, addr)
+#define user_sc(reg, addr)		__BUILD_EVA_INSN("sce", reg, addr)
+#define user_lw(reg, addr)		__BUILD_EVA_INSN("lwe", reg, addr)
+#define user_lwl(reg, addr)		__BUILD_EVA_INSN("lwle", reg, addr)
+#define user_lwr(reg, addr)		__BUILD_EVA_INSN("lwre", reg, addr)
+#define user_lh(reg, addr)		__BUILD_EVA_INSN("lhe", reg, addr)
+#define user_lb(reg, addr)		__BUILD_EVA_INSN("lbe", reg, addr)
+#define user_lbu(reg, addr)		__BUILD_EVA_INSN("lbue", reg, addr)
+/* No 64-bit EVA instruction for loading double words */
+#define user_ld(reg, addr)		user_lw(reg, addr)
+#define user_sw(reg, addr)		__BUILD_EVA_INSN("swe", reg, addr)
+#define user_swl(reg, addr)		__BUILD_EVA_INSN("swle", reg, addr)
+#define user_swr(reg, addr)		__BUILD_EVA_INSN("swre", reg, addr)
+#define user_sh(reg, addr)		__BUILD_EVA_INSN("she", reg, addr)
+#define user_sb(reg, addr)		__BUILD_EVA_INSN("sbe", reg, addr)
+/* No 64-bit EVA instruction for storing double words */
+#define user_sd(reg, addr)		user_sw(reg, addr)
+
+#else
+
+#define user_cache(op, base)		kernel_cache(op, base)
+#define user_ll(reg, addr)		kernel_ll(reg, addr)
+#define user_sc(reg, addr)		kernel_sc(reg, addr)
+#define user_lw(reg, addr)		kernel_lw(reg, addr)
+#define user_lwl(reg, addr)		kernel_lwl(reg, addr)
+#define user_lwr(reg, addr)		kernel_lwr(reg, addr)
+#define user_lh(reg, addr)		kernel_lh(reg, addr)
+#define user_lb(reg, addr)		kernel_lb(reg, addr)
+#define user_lbu(reg, addr)		kernel_lbu(reg, addr)
+#define user_sw(reg, addr)		kernel_sw(reg, addr)
+#define user_swl(reg, addr)		kernel_swl(reg, addr)
+#define user_swr(reg, addr)		kernel_swr(reg, addr)
+#define user_sh(reg, addr)		kernel_sh(reg, addr)
+#define user_sb(reg, addr)		kernel_sb(reg, addr)
+
+#ifdef CONFIG_32BIT
+#define user_sd(reg, addr)		kernel_sw(reg, addr)
+#define user_ld(reg, addr)		kernel_lw(reg, addr)
+#else
+#define user_sd(reg, addr)		kernel_sd(reg, addr)
+#define user_ld(reg, addr)		kernel_ld(reg, addr)
+#endif /* CONFIG_32BIT */
+
+#endif /* CONFIG_EVA */
+
+#else /* __ASSEMBLY__ */
+
+#define kernel_cache(op, base)		cache op, base
+#define kernel_ll(reg, addr)		ll reg, addr
+#define kernel_sc(reg, addr)		sc reg, addr
+#define kernel_lw(reg, addr)		lw reg, addr
+#define kernel_lwl(reg, addr)		lwl reg, addr
+#define kernel_lwr(reg, addr)		lwr reg, addr
+#define kernel_lh(reg, addr)		lh reg, addr
+#define kernel_lb(reg, addr)		lb reg, addr
+#define kernel_lbu(reg, addr)		lbu reg, addr
+#define kernel_sw(reg, addr)		sw reg, addr
+#define kernel_swl(reg, addr)		swl reg, addr
+#define kernel_swr(reg, addr)		swr reg, addr
+#define kernel_sh(reg, addr)		sh reg, addr
+#define kernel_sb(reg, addr)		sb reg, addr
+
+#ifdef CONFIG_32BIT
+/*
+ * No 'sd' or 'ld' instructions in 32-bit but the code will
+ * do the correct thing
+ */
+#define kernel_sd(reg, addr)		user_sw(reg, addr)
+#define kernel_ld(reg, addr)		user_lw(reg, addr)
+#else
+#define kernel_sd(reg, addr)		sd reg, addr
+#define kernel_ld(reg, addr)		ld reg, addr
+#endif /* CONFIG_32BIT */
+
+#ifdef CONFIG_EVA
+
+#define __BUILD_EVA_INSN(insn, reg, addr)			\
+				.set	push;			\
+				.set	mips0;			\
+				.set	eva;			\
+				insn reg, addr;			\
+				.set	pop;
+
+#define user_cache(op, base)		__BUILD_EVA_INSN(cachee, op, base)
+#define user_ll(reg, addr)		__BUILD_EVA_INSN(lle, reg, addr)
+#define user_sc(reg, addr)		__BUILD_EVA_INSN(sce, reg, addr)
+#define user_lw(reg, addr)		__BUILD_EVA_INSN(lwe, reg, addr)
+#define user_lwl(reg, addr)		__BUILD_EVA_INSN(lwle, reg, addr)
+#define user_lwr(reg, addr)		__BUILD_EVA_INSN(lwre, reg, addr)
+#define user_lh(reg, addr)		__BUILD_EVA_INSN(lhe, reg, addr)
+#define user_lb(reg, addr)		__BUILD_EVA_INSN(lbe, reg, addr)
+#define user_lbu(reg, addr)		__BUILD_EVA_INSN(lbue, reg, addr)
+/* No 64-bit EVA instruction for loading double words */
+#define user_ld(reg, addr)		user_lw(reg, addr)
+#define user_sw(reg, addr)		__BUILD_EVA_INSN(swe, reg, addr)
+#define user_swl(reg, addr)		__BUILD_EVA_INSN(swle, reg, addr)
+#define user_swr(reg, addr)		__BUILD_EVA_INSN(swre, reg, addr)
+#define user_sh(reg, addr)		__BUILD_EVA_INSN(she, reg, addr)
+#define user_sb(reg, addr)		__BUILD_EVA_INSN(sbe, reg, addr)
+/* No 64-bit EVA instruction for loading double words */
+#define user_sd(reg, addr)		user_sw(reg, addr)
+#else
+
+#define user_cache(op, base)		kernel_cache(op, base)
+#define user_ll(reg, addr)		kernel_ll(reg, addr)
+#define user_sc(reg, addr)		kernel_sc(reg, addr)
+#define user_lw(reg, addr)		kernel_lw(reg, addr)
+#define user_lwl(reg, addr)		kernel_lwl(reg, addr)
+#define user_lwr(reg, addr)		kernel_lwr(reg, addr)
+#define user_lh(reg, addr)		kernel_lh(reg, addr)
+#define user_lb(reg, addr)		kernel_lb(reg, addr)
+#define user_lbu(reg, addr)		kernel_lbu(reg, addr)
+#define user_sw(reg, addr)		kernel_sw(reg, addr)
+#define user_swl(reg, addr)		kernel_swl(reg, addr)
+#define user_swr(reg, addr)		kernel_swr(reg, addr)
+#define user_sh(reg, addr)		kernel_sh(reg, addr)
+#define user_sb(reg, addr)		kernel_sb(reg, addr)
+
+#ifdef CONFIG_32BIT
+#define user_sd(reg, addr)		kernel_sw(reg, addr)
+#define user_ld(reg, addr)		kernel_lw(reg, addr)
+#else
+#define user_sd(reg, addr)		kernel_sd(reg, addr)
+#define user_ld(reg, addr)		kernel_sd(reg, addr)
+#endif /* CONFIG_32BIT */
+
+#endif /* CONFIG_EVA */
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_ASM_EVA_H */

arch/mips/include/asm/asm-offsets.h

@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>

arch/mips/include/asm/asm.h

@@ -0,0 +1,420 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1996, 1997, 1999, 2001 by Ralf Baechle
+ * Copyright (C) 1999 by Silicon Graphics, Inc.
+ * Copyright (C) 2001 MIPS Technologies, Inc.
+ * Copyright (C) 2002  Maciej W. Rozycki
+ *
+ * Some useful macros for MIPS assembler code
+ *
+ * Some of the routines below contain useless nops that will be optimized
+ * away by gas in -O mode. These nops are however required to fill delay
+ * slots in noreorder mode.
+ */
+#ifndef __ASM_ASM_H
+#define __ASM_ASM_H
+
+#include <asm/sgidefs.h>
+#include <asm/asm-eva.h>
+
+#ifndef CAT
+#ifdef __STDC__
+#define __CAT(str1, str2) str1##str2
+#else
+#define __CAT(str1, str2) str1/**/str2
+#endif
+#define CAT(str1, str2) __CAT(str1, str2)
+#endif
+
+/*
+ * PIC specific declarations
+ * Not used for the kernel but here seems to be the right place.
+ */
+#ifdef __PIC__
+#define CPRESTORE(register)				\
+		.cprestore register
+#define CPADD(register)					\
+		.cpadd	register
+#define CPLOAD(register)				\
+		.cpload register
+#else
+#define CPRESTORE(register)
+#define CPADD(register)
+#define CPLOAD(register)
+#endif
+
+/*
+ * LEAF - declare leaf routine
+ */
+#define LEAF(symbol)					\
+		.globl	symbol;				\
+		.align	2;				\
+		.type	symbol, @function;		\
+		.ent	symbol, 0;			\
+symbol:		.frame	sp, 0, ra
+
+/*
+ * NESTED - declare nested routine entry point
+ */
+#define NESTED(symbol, framesize, rpc)			\
+		.globl	symbol;				\
+		.align	2;				\
+		.type	symbol, @function;		\
+		.ent	symbol, 0;			 \
+symbol:		.frame	sp, framesize, rpc
+
+/*
+ * END - mark end of function
+ */
+#define END(function)					\
+		.end	function;			\
+		.size	function, .-function
+
+/*
+ * EXPORT - export definition of symbol
+ */
+#define EXPORT(symbol)					\
+		.globl	symbol;				\
+symbol:
+
+/*
+ * FEXPORT - export definition of a function symbol
+ */
+#define FEXPORT(symbol)					\
+		.globl	symbol;				\
+		.type	symbol, @function;		\
+symbol:
+
+/*
+ * ABS - export absolute symbol
+ */
+#define ABS(symbol,value)				\
+		.globl	symbol;				\
+symbol		=	value
+
+#define PANIC(msg)					\
+		.set	push;				\
+		.set	reorder;			\
+		PTR_LA	a0, 8f;				 \
+		jal	panic;				\
+9:		b	9b;				\
+		.set	pop;				\
+		TEXT(msg)
+
+/*
+ * Print formatted string
+ */
+#ifdef CONFIG_PRINTK
+#define PRINT(string)					\
+		.set	push;				\
+		.set	reorder;			\
+		PTR_LA	a0, 8f;				 \
+		jal	printk;				\
+		.set	pop;				\
+		TEXT(string)
+#else
+#define PRINT(string)
+#endif
+
+#define TEXT(msg)					\
+		.pushsection .data;			\
+8:		.asciiz msg;				\
+		.popsection;
+
+/*
+ * Build text tables
+ */
+#define TTABLE(string)					\
+		.pushsection .text;			\
+		.word	1f;				\
+		.popsection				\
+		.pushsection .data;			\
+1:		.asciiz string;				\
+		.popsection
+
+/*
+ * MIPS IV pref instruction.
+ * Use with .set noreorder only!
+ *
+ * MIPS IV implementations are free to treat this as a nop.  The R5000
+ * is one of them.  So we should have an option not to use this instruction.
+ */
+#ifdef CONFIG_CPU_HAS_PREFETCH
+
+#define PREF(hint,addr)					\
+		.set	push;				\
+		.set	arch=r5000;			\
+		pref	hint, addr;			\
+		.set	pop
+
+#define PREFE(hint, addr)				\
+		.set	push;				\
+		.set	mips0;				\
+		.set	eva;				\
+		prefe	hint, addr;			\
+		.set	pop
+
+#define PREFX(hint,addr)				\
+		.set	push;				\
+		.set	arch=r5000;			\
+		prefx	hint, addr;			\
+		.set	pop
+
+#else /* !CONFIG_CPU_HAS_PREFETCH */
+
+#define PREF(hint, addr)
+#define PREFE(hint, addr)
+#define PREFX(hint, addr)
+
+#endif /* !CONFIG_CPU_HAS_PREFETCH */
+
+/*
+ * MIPS ISA IV/V movn/movz instructions and equivalents for older CPUs.
+ */
+#if (_MIPS_ISA == _MIPS_ISA_MIPS1)
+#define MOVN(rd, rs, rt)				\
+		.set	push;				\
+		.set	reorder;			\
+		beqz	rt, 9f;				\
+		move	rd, rs;				\
+		.set	pop;				\
+9:
+#define MOVZ(rd, rs, rt)				\
+		.set	push;				\
+		.set	reorder;			\
+		bnez	rt, 9f;				\
+		move	rd, rs;				\
+		.set	pop;				\
+9:
+#endif /* _MIPS_ISA == _MIPS_ISA_MIPS1 */
+#if (_MIPS_ISA == _MIPS_ISA_MIPS2) || (_MIPS_ISA == _MIPS_ISA_MIPS3)
+#define MOVN(rd, rs, rt)				\
+		.set	push;				\
+		.set	noreorder;			\
+		bnezl	rt, 9f;				\
+		 move	rd, rs;				\
+		.set	pop;				\
+9:
+#define MOVZ(rd, rs, rt)				\
+		.set	push;				\
+		.set	noreorder;			\
+		beqzl	rt, 9f;				\
+		 move	rd, rs;				\
+		.set	pop;				\
+9:
+#endif /* (_MIPS_ISA == _MIPS_ISA_MIPS2) || (_MIPS_ISA == _MIPS_ISA_MIPS3) */
+#if (_MIPS_ISA == _MIPS_ISA_MIPS4 ) || (_MIPS_ISA == _MIPS_ISA_MIPS5) || \
+    (_MIPS_ISA == _MIPS_ISA_MIPS32) || (_MIPS_ISA == _MIPS_ISA_MIPS64)
+#define MOVN(rd, rs, rt)				\
+		movn	rd, rs, rt
+#define MOVZ(rd, rs, rt)				\
+		movz	rd, rs, rt
+#endif /* MIPS IV, MIPS V, MIPS32 or MIPS64 */
+
+/*
+ * Stack alignment
+ */
+#if (_MIPS_SIM == _MIPS_SIM_ABI32)
+#define ALSZ	7
+#define ALMASK	~7
+#endif
+#if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
+#define ALSZ	15
+#define ALMASK	~15
+#endif
+
+/*
+ * Macros to handle different pointer/register sizes for 32/64-bit code
+ */
+
+/*
+ * Size of a register
+ */
+#ifdef __mips64
+#define SZREG	8
+#else
+#define SZREG	4
+#endif
+
+/*
+ * Use the following macros in assemblercode to load/store registers,
+ * pointers etc.
+ */
+#if (_MIPS_SIM == _MIPS_SIM_ABI32)
+#define REG_S		sw
+#define REG_L		lw
+#define REG_SUBU	subu
+#define REG_ADDU	addu
+#endif
+#if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
+#define REG_S		sd
+#define REG_L		ld
+#define REG_SUBU	dsubu
+#define REG_ADDU	daddu
+#endif
+
+/*
+ * How to add/sub/load/store/shift C int variables.
+ */
+#if (_MIPS_SZINT == 32)
+#define INT_ADD		add
+#define INT_ADDU	addu
+#define INT_ADDI	addi
+#define INT_ADDIU	addiu
+#define INT_SUB		sub
+#define INT_SUBU	subu
+#define INT_L		lw
+#define INT_S		sw
+#define INT_SLL		sll
+#define INT_SLLV	sllv
+#define INT_SRL		srl
+#define INT_SRLV	srlv
+#define INT_SRA		sra
+#define INT_SRAV	srav
+#endif
+
+#if (_MIPS_SZINT == 64)
+#define INT_ADD		dadd
+#define INT_ADDU	daddu
+#define INT_ADDI	daddi
+#define INT_ADDIU	daddiu
+#define INT_SUB		dsub
+#define INT_SUBU	dsubu
+#define INT_L		ld
+#define INT_S		sd
+#define INT_SLL		dsll
+#define INT_SLLV	dsllv
+#define INT_SRL		dsrl
+#define INT_SRLV	dsrlv
+#define INT_SRA		dsra
+#define INT_SRAV	dsrav
+#endif
+
+/*
+ * How to add/sub/load/store/shift C long variables.
+ */
+#if (_MIPS_SZLONG == 32)
+#define LONG_ADD	add
+#define LONG_ADDU	addu
+#define LONG_ADDI	addi
+#define LONG_ADDIU	addiu
+#define LONG_SUB	sub
+#define LONG_SUBU	subu
+#define LONG_L		lw
+#define LONG_S		sw
+#define LONG_SP		swp
+#define LONG_SLL	sll
+#define LONG_SLLV	sllv
+#define LONG_SRL	srl
+#define LONG_SRLV	srlv
+#define LONG_SRA	sra
+#define LONG_SRAV	srav
+
+#define LONG		.word
+#define LONGSIZE	4
+#define LONGMASK	3
+#define LONGLOG		2
+#endif
+
+#if (_MIPS_SZLONG == 64)
+#define LONG_ADD	dadd
+#define LONG_ADDU	daddu
+#define LONG_ADDI	daddi
+#define LONG_ADDIU	daddiu
+#define LONG_SUB	dsub
+#define LONG_SUBU	dsubu
+#define LONG_L		ld
+#define LONG_S		sd
+#define LONG_SP		sdp
+#define LONG_SLL	dsll
+#define LONG_SLLV	dsllv
+#define LONG_SRL	dsrl
+#define LONG_SRLV	dsrlv
+#define LONG_SRA	dsra
+#define LONG_SRAV	dsrav
+
+#define LONG		.dword
+#define LONGSIZE	8
+#define LONGMASK	7
+#define LONGLOG		3
+#endif
+
+/*
+ * How to add/sub/load/store/shift pointers.
+ */
+#if (_MIPS_SZPTR == 32)
+#define PTR_ADD		add
+#define PTR_ADDU	addu
+#define PTR_ADDI	addi
+#define PTR_ADDIU	addiu
+#define PTR_SUB		sub
+#define PTR_SUBU	subu
+#define PTR_L		lw
+#define PTR_S		sw
+#define PTR_LA		la
+#define PTR_LI		li
+#define PTR_SLL		sll
+#define PTR_SLLV	sllv
+#define PTR_SRL		srl
+#define PTR_SRLV	srlv
+#define PTR_SRA		sra
+#define PTR_SRAV	srav
+
+#define PTR_SCALESHIFT	2
+
+#define PTR		.word
+#define PTRSIZE		4
+#define PTRLOG		2
+#endif
+
+#if (_MIPS_SZPTR == 64)
+#define PTR_ADD		dadd
+#define PTR_ADDU	daddu
+#define PTR_ADDI	daddi
+#define PTR_ADDIU	daddiu
+#define PTR_SUB		dsub
+#define PTR_SUBU	dsubu
+#define PTR_L		ld
+#define PTR_S		sd
+#define PTR_LA		dla
+#define PTR_LI		dli
+#define PTR_SLL		dsll
+#define PTR_SLLV	dsllv
+#define PTR_SRL		dsrl
+#define PTR_SRLV	dsrlv
+#define PTR_SRA		dsra
+#define PTR_SRAV	dsrav
+
+#define PTR_SCALESHIFT	3
+
+#define PTR		.dword
+#define PTRSIZE		8
+#define PTRLOG		3
+#endif
+
+/*
+ * Some cp0 registers were extended to 64bit for MIPS III.
+ */
+#if (_MIPS_SIM == _MIPS_SIM_ABI32)
+#define MFC0		mfc0
+#define MTC0		mtc0
+#endif
+#if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)
+#define MFC0		dmfc0
+#define MTC0		dmtc0
+#endif
+
+#define SSNOP		sll zero, zero, 1
+
+#ifdef CONFIG_SGI_IP28
+/* Inhibit speculative stores to volatile (e.g.DMA) or invalid addresses. */
+#include <asm/cacheops.h>
+#define R10KCBARRIER(addr)  cache   Cache_Barrier, addr;
+#else
+#define R10KCBARRIER(addr)
+#endif
+
+#endif /* __ASM_ASM_H */

arch/mips/include/asm/asmmacro-32.h

@@ -0,0 +1,122 @@
+/*
+ * asmmacro.h: Assembler macros to make things easier to read.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1998, 1999, 2003 Ralf Baechle
+ */
+#ifndef _ASM_ASMMACRO_32_H
+#define _ASM_ASMMACRO_32_H
+
+#include <asm/asm-offsets.h>
+#include <asm/regdef.h>
+#include <asm/fpregdef.h>
+#include <asm/mipsregs.h>
+
+	.macro	fpu_save_single thread tmp=t0
+	.set push
+	SET_HARDFLOAT
+	cfc1	\tmp,  fcr31
+	swc1	$f0,  THREAD_FPR0_LS64(\thread)
+	swc1	$f1,  THREAD_FPR1_LS64(\thread)
+	swc1	$f2,  THREAD_FPR2_LS64(\thread)
+	swc1	$f3,  THREAD_FPR3_LS64(\thread)
+	swc1	$f4,  THREAD_FPR4_LS64(\thread)
+	swc1	$f5,  THREAD_FPR5_LS64(\thread)
+	swc1	$f6,  THREAD_FPR6_LS64(\thread)
+	swc1	$f7,  THREAD_FPR7_LS64(\thread)
+	swc1	$f8,  THREAD_FPR8_LS64(\thread)
+	swc1	$f9,  THREAD_FPR9_LS64(\thread)
+	swc1	$f10, THREAD_FPR10_LS64(\thread)
+	swc1	$f11, THREAD_FPR11_LS64(\thread)
+	swc1	$f12, THREAD_FPR12_LS64(\thread)
+	swc1	$f13, THREAD_FPR13_LS64(\thread)
+	swc1	$f14, THREAD_FPR14_LS64(\thread)
+	swc1	$f15, THREAD_FPR15_LS64(\thread)
+	swc1	$f16, THREAD_FPR16_LS64(\thread)
+	swc1	$f17, THREAD_FPR17_LS64(\thread)
+	swc1	$f18, THREAD_FPR18_LS64(\thread)
+	swc1	$f19, THREAD_FPR19_LS64(\thread)
+	swc1	$f20, THREAD_FPR20_LS64(\thread)
+	swc1	$f21, THREAD_FPR21_LS64(\thread)
+	swc1	$f22, THREAD_FPR22_LS64(\thread)
+	swc1	$f23, THREAD_FPR23_LS64(\thread)
+	swc1	$f24, THREAD_FPR24_LS64(\thread)
+	swc1	$f25, THREAD_FPR25_LS64(\thread)
+	swc1	$f26, THREAD_FPR26_LS64(\thread)
+	swc1	$f27, THREAD_FPR27_LS64(\thread)
+	swc1	$f28, THREAD_FPR28_LS64(\thread)
+	swc1	$f29, THREAD_FPR29_LS64(\thread)
+	swc1	$f30, THREAD_FPR30_LS64(\thread)
+	swc1	$f31, THREAD_FPR31_LS64(\thread)
+	sw	\tmp, THREAD_FCR31(\thread)
+	.set pop
+	.endm
+
+	.macro	fpu_restore_single thread tmp=t0
+	.set push
+	SET_HARDFLOAT
+	lw	\tmp, THREAD_FCR31(\thread)
+	lwc1	$f0,  THREAD_FPR0_LS64(\thread)
+	lwc1	$f1,  THREAD_FPR1_LS64(\thread)
+	lwc1	$f2,  THREAD_FPR2_LS64(\thread)
+	lwc1	$f3,  THREAD_FPR3_LS64(\thread)
+	lwc1	$f4,  THREAD_FPR4_LS64(\thread)
+	lwc1	$f5,  THREAD_FPR5_LS64(\thread)
+	lwc1	$f6,  THREAD_FPR6_LS64(\thread)
+	lwc1	$f7,  THREAD_FPR7_LS64(\thread)
+	lwc1	$f8,  THREAD_FPR8_LS64(\thread)
+	lwc1	$f9,  THREAD_FPR9_LS64(\thread)
+	lwc1	$f10, THREAD_FPR10_LS64(\thread)
+	lwc1	$f11, THREAD_FPR11_LS64(\thread)
+	lwc1	$f12, THREAD_FPR12_LS64(\thread)
+	lwc1	$f13, THREAD_FPR13_LS64(\thread)
+	lwc1	$f14, THREAD_FPR14_LS64(\thread)
+	lwc1	$f15, THREAD_FPR15_LS64(\thread)
+	lwc1	$f16, THREAD_FPR16_LS64(\thread)
+	lwc1	$f17, THREAD_FPR17_LS64(\thread)
+	lwc1	$f18, THREAD_FPR18_LS64(\thread)
+	lwc1	$f19, THREAD_FPR19_LS64(\thread)
+	lwc1	$f20, THREAD_FPR20_LS64(\thread)
+	lwc1	$f21, THREAD_FPR21_LS64(\thread)
+	lwc1	$f22, THREAD_FPR22_LS64(\thread)
+	lwc1	$f23, THREAD_FPR23_LS64(\thread)
+	lwc1	$f24, THREAD_FPR24_LS64(\thread)
+	lwc1	$f25, THREAD_FPR25_LS64(\thread)
+	lwc1	$f26, THREAD_FPR26_LS64(\thread)
+	lwc1	$f27, THREAD_FPR27_LS64(\thread)
+	lwc1	$f28, THREAD_FPR28_LS64(\thread)
+	lwc1	$f29, THREAD_FPR29_LS64(\thread)
+	lwc1	$f30, THREAD_FPR30_LS64(\thread)
+	lwc1	$f31, THREAD_FPR31_LS64(\thread)
+	ctc1	\tmp, fcr31
+	.set pop
+	.endm
+
+	.macro	cpu_save_nonscratch thread
+	LONG_S	s0, THREAD_REG16(\thread)
+	LONG_S	s1, THREAD_REG17(\thread)
+	LONG_S	s2, THREAD_REG18(\thread)
+	LONG_S	s3, THREAD_REG19(\thread)
+	LONG_S	s4, THREAD_REG20(\thread)
+	LONG_S	s5, THREAD_REG21(\thread)
+	LONG_S	s6, THREAD_REG22(\thread)
+	LONG_S	s7, THREAD_REG23(\thread)
+	LONG_S	sp, THREAD_REG29(\thread)
+	LONG_S	fp, THREAD_REG30(\thread)
+	.endm
+
+	.macro	cpu_restore_nonscratch thread
+	LONG_L	s0, THREAD_REG16(\thread)
+	LONG_L	s1, THREAD_REG17(\thread)
+	LONG_L	s2, THREAD_REG18(\thread)
+	LONG_L	s3, THREAD_REG19(\thread)
+	LONG_L	s4, THREAD_REG20(\thread)
+	LONG_L	s5, THREAD_REG21(\thread)
+	LONG_L	s6, THREAD_REG22(\thread)
+	LONG_L	s7, THREAD_REG23(\thread)
+	LONG_L	sp, THREAD_REG29(\thread)
+	LONG_L	fp, THREAD_REG30(\thread)
+	LONG_L	ra, THREAD_REG31(\thread)
+	.endm
+
+#endif /* _ASM_ASMMACRO_32_H */

arch/mips/include/asm/asmmacro-64.h

@@ -0,0 +1,43 @@
+/*
+ * asmmacro.h: Assembler macros to make things easier to read.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1998, 1999 Ralf Baechle
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_ASMMACRO_64_H
+#define _ASM_ASMMACRO_64_H
+
+#include <asm/asm-offsets.h>
+#include <asm/regdef.h>
+#include <asm/fpregdef.h>
+#include <asm/mipsregs.h>
+
+	.macro	cpu_save_nonscratch thread
+	LONG_S	s0, THREAD_REG16(\thread)
+	LONG_S	s1, THREAD_REG17(\thread)
+	LONG_S	s2, THREAD_REG18(\thread)
+	LONG_S	s3, THREAD_REG19(\thread)
+	LONG_S	s4, THREAD_REG20(\thread)
+	LONG_S	s5, THREAD_REG21(\thread)
+	LONG_S	s6, THREAD_REG22(\thread)
+	LONG_S	s7, THREAD_REG23(\thread)
+	LONG_S	sp, THREAD_REG29(\thread)
+	LONG_S	fp, THREAD_REG30(\thread)
+	.endm
+
+	.macro	cpu_restore_nonscratch thread
+	LONG_L	s0, THREAD_REG16(\thread)
+	LONG_L	s1, THREAD_REG17(\thread)
+	LONG_L	s2, THREAD_REG18(\thread)
+	LONG_L	s3, THREAD_REG19(\thread)
+	LONG_L	s4, THREAD_REG20(\thread)
+	LONG_L	s5, THREAD_REG21(\thread)
+	LONG_L	s6, THREAD_REG22(\thread)
+	LONG_L	s7, THREAD_REG23(\thread)
+	LONG_L	sp, THREAD_REG29(\thread)
+	LONG_L	fp, THREAD_REG30(\thread)
+	LONG_L	ra, THREAD_REG31(\thread)
+	.endm
+
+#endif /* _ASM_ASMMACRO_64_H */

arch/mips/include/asm/asmmacro.h

@@ -0,0 +1,467 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Ralf Baechle
+ */
+#ifndef _ASM_ASMMACRO_H
+#define _ASM_ASMMACRO_H
+
+#include <asm/hazards.h>
+#include <asm/asm-offsets.h>
+#include <asm/msa.h>
+
+#ifdef CONFIG_32BIT
+#include <asm/asmmacro-32.h>
+#endif
+#ifdef CONFIG_64BIT
+#include <asm/asmmacro-64.h>
+#endif
+
+#ifdef CONFIG_CPU_MIPSR2
+	.macro	local_irq_enable reg=t0
+	ei
+	irq_enable_hazard
+	.endm
+
+	.macro	local_irq_disable reg=t0
+	di
+	irq_disable_hazard
+	.endm
+#else
+	.macro	local_irq_enable reg=t0
+	mfc0	\reg, CP0_STATUS
+	ori	\reg, \reg, 1
+	mtc0	\reg, CP0_STATUS
+	irq_enable_hazard
+	.endm
+
+	.macro	local_irq_disable reg=t0
+#ifdef CONFIG_PREEMPT
+	lw      \reg, TI_PRE_COUNT($28)
+	addi    \reg, \reg, 1
+	sw      \reg, TI_PRE_COUNT($28)
+#endif
+	mfc0	\reg, CP0_STATUS
+	ori	\reg, \reg, 1
+	xori	\reg, \reg, 1
+	mtc0	\reg, CP0_STATUS
+	irq_disable_hazard
+#ifdef CONFIG_PREEMPT
+	lw      \reg, TI_PRE_COUNT($28)
+	addi    \reg, \reg, -1
+	sw      \reg, TI_PRE_COUNT($28)
+#endif
+	.endm
+#endif /* CONFIG_CPU_MIPSR2 */
+
+	.macro	fpu_save_16even thread tmp=t0
+	.set	push
+	SET_HARDFLOAT
+	cfc1	\tmp, fcr31
+	sdc1	$f0,  THREAD_FPR0_LS64(\thread)
+	sdc1	$f2,  THREAD_FPR2_LS64(\thread)
+	sdc1	$f4,  THREAD_FPR4_LS64(\thread)
+	sdc1	$f6,  THREAD_FPR6_LS64(\thread)
+	sdc1	$f8,  THREAD_FPR8_LS64(\thread)
+	sdc1	$f10, THREAD_FPR10_LS64(\thread)
+	sdc1	$f12, THREAD_FPR12_LS64(\thread)
+	sdc1	$f14, THREAD_FPR14_LS64(\thread)
+	sdc1	$f16, THREAD_FPR16_LS64(\thread)
+	sdc1	$f18, THREAD_FPR18_LS64(\thread)
+	sdc1	$f20, THREAD_FPR20_LS64(\thread)
+	sdc1	$f22, THREAD_FPR22_LS64(\thread)
+	sdc1	$f24, THREAD_FPR24_LS64(\thread)
+	sdc1	$f26, THREAD_FPR26_LS64(\thread)
+	sdc1	$f28, THREAD_FPR28_LS64(\thread)
+	sdc1	$f30, THREAD_FPR30_LS64(\thread)
+	sw	\tmp, THREAD_FCR31(\thread)
+	.set	pop
+	.endm
+
+	.macro	fpu_save_16odd thread
+	.set	push
+	.set	mips64r2
+	SET_HARDFLOAT
+	sdc1	$f1,  THREAD_FPR1_LS64(\thread)
+	sdc1	$f3,  THREAD_FPR3_LS64(\thread)
+	sdc1	$f5,  THREAD_FPR5_LS64(\thread)
+	sdc1	$f7,  THREAD_FPR7_LS64(\thread)
+	sdc1	$f9,  THREAD_FPR9_LS64(\thread)
+	sdc1	$f11, THREAD_FPR11_LS64(\thread)
+	sdc1	$f13, THREAD_FPR13_LS64(\thread)
+	sdc1	$f15, THREAD_FPR15_LS64(\thread)
+	sdc1	$f17, THREAD_FPR17_LS64(\thread)
+	sdc1	$f19, THREAD_FPR19_LS64(\thread)
+	sdc1	$f21, THREAD_FPR21_LS64(\thread)
+	sdc1	$f23, THREAD_FPR23_LS64(\thread)
+	sdc1	$f25, THREAD_FPR25_LS64(\thread)
+	sdc1	$f27, THREAD_FPR27_LS64(\thread)
+	sdc1	$f29, THREAD_FPR29_LS64(\thread)
+	sdc1	$f31, THREAD_FPR31_LS64(\thread)
+	.set	pop
+	.endm
+
+	.macro	fpu_save_double thread status tmp
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2)
+	sll	\tmp, \status, 5
+	bgez	\tmp, 10f
+	fpu_save_16odd \thread
+10:
+#endif
+	fpu_save_16even \thread \tmp
+	.endm
+
+	.macro	fpu_restore_16even thread tmp=t0
+	.set	push
+	SET_HARDFLOAT
+	lw	\tmp, THREAD_FCR31(\thread)
+	ldc1	$f0,  THREAD_FPR0_LS64(\thread)
+	ldc1	$f2,  THREAD_FPR2_LS64(\thread)
+	ldc1	$f4,  THREAD_FPR4_LS64(\thread)
+	ldc1	$f6,  THREAD_FPR6_LS64(\thread)
+	ldc1	$f8,  THREAD_FPR8_LS64(\thread)
+	ldc1	$f10, THREAD_FPR10_LS64(\thread)
+	ldc1	$f12, THREAD_FPR12_LS64(\thread)
+	ldc1	$f14, THREAD_FPR14_LS64(\thread)
+	ldc1	$f16, THREAD_FPR16_LS64(\thread)
+	ldc1	$f18, THREAD_FPR18_LS64(\thread)
+	ldc1	$f20, THREAD_FPR20_LS64(\thread)
+	ldc1	$f22, THREAD_FPR22_LS64(\thread)
+	ldc1	$f24, THREAD_FPR24_LS64(\thread)
+	ldc1	$f26, THREAD_FPR26_LS64(\thread)
+	ldc1	$f28, THREAD_FPR28_LS64(\thread)
+	ldc1	$f30, THREAD_FPR30_LS64(\thread)
+	ctc1	\tmp, fcr31
+	.endm
+
+	.macro	fpu_restore_16odd thread
+	.set	push
+	.set	mips64r2
+	SET_HARDFLOAT
+	ldc1	$f1,  THREAD_FPR1_LS64(\thread)
+	ldc1	$f3,  THREAD_FPR3_LS64(\thread)
+	ldc1	$f5,  THREAD_FPR5_LS64(\thread)
+	ldc1	$f7,  THREAD_FPR7_LS64(\thread)
+	ldc1	$f9,  THREAD_FPR9_LS64(\thread)
+	ldc1	$f11, THREAD_FPR11_LS64(\thread)
+	ldc1	$f13, THREAD_FPR13_LS64(\thread)
+	ldc1	$f15, THREAD_FPR15_LS64(\thread)
+	ldc1	$f17, THREAD_FPR17_LS64(\thread)
+	ldc1	$f19, THREAD_FPR19_LS64(\thread)
+	ldc1	$f21, THREAD_FPR21_LS64(\thread)
+	ldc1	$f23, THREAD_FPR23_LS64(\thread)
+	ldc1	$f25, THREAD_FPR25_LS64(\thread)
+	ldc1	$f27, THREAD_FPR27_LS64(\thread)
+	ldc1	$f29, THREAD_FPR29_LS64(\thread)
+	ldc1	$f31, THREAD_FPR31_LS64(\thread)
+	.set	pop
+	.endm
+
+	.macro	fpu_restore_double thread status tmp
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2)
+	sll	\tmp, \status, 5
+	bgez	\tmp, 10f				# 16 register mode?
+
+	fpu_restore_16odd \thread
+10:
+#endif
+	fpu_restore_16even \thread \tmp
+	.endm
+
+#ifdef CONFIG_CPU_MIPSR2
+	.macro	_EXT	rd, rs, p, s
+	ext	\rd, \rs, \p, \s
+	.endm
+#else /* !CONFIG_CPU_MIPSR2 */
+	.macro	_EXT	rd, rs, p, s
+	srl	\rd, \rs, \p
+	andi	\rd, \rd, (1 << \s) - 1
+	.endm
+#endif /* !CONFIG_CPU_MIPSR2 */
+
+/*
+ * Temporary until all gas have MT ASE support
+ */
+	.macro	DMT	reg=0
+	.word	0x41600bc1 | (\reg << 16)
+	.endm
+
+	.macro	EMT	reg=0
+	.word	0x41600be1 | (\reg << 16)
+	.endm
+
+	.macro	DVPE	reg=0
+	.word	0x41600001 | (\reg << 16)
+	.endm
+
+	.macro	EVPE	reg=0
+	.word	0x41600021 | (\reg << 16)
+	.endm
+
+	.macro	MFTR	rt=0, rd=0, u=0, sel=0
+	 .word	0x41000000 | (\rt << 16) | (\rd << 11) | (\u << 5) | (\sel)
+	.endm
+
+	.macro	MTTR	rt=0, rd=0, u=0, sel=0
+	 .word	0x41800000 | (\rt << 16) | (\rd << 11) | (\u << 5) | (\sel)
+	.endm
+
+#ifdef TOOLCHAIN_SUPPORTS_MSA
+	.macro	ld_d	wd, off, base
+	.set	push
+	.set	mips32r2
+	.set	msa
+	ld.d	$w\wd, \off(\base)
+	.set	pop
+	.endm
+
+	.macro	st_d	wd, off, base
+	.set	push
+	.set	mips32r2
+	.set	msa
+	st.d	$w\wd, \off(\base)
+	.set	pop
+	.endm
+
+	.macro	copy_u_w	rd, ws, n
+	.set	push
+	.set	mips32r2
+	.set	msa
+	copy_u.w \rd, $w\ws[\n]
+	.set	pop
+	.endm
+
+	.macro	copy_u_d	rd, ws, n
+	.set	push
+	.set	mips64r2
+	.set	msa
+	copy_u.d \rd, $w\ws[\n]
+	.set	pop
+	.endm
+
+	.macro	insert_w	wd, n, rs
+	.set	push
+	.set	mips32r2
+	.set	msa
+	insert.w $w\wd[\n], \rs
+	.set	pop
+	.endm
+
+	.macro	insert_d	wd, n, rs
+	.set	push
+	.set	mips64r2
+	.set	msa
+	insert.d $w\wd[\n], \rs
+	.set	pop
+	.endm
+#else
+
+#ifdef CONFIG_CPU_MICROMIPS
+#define CFC_MSA_INSN		0x587e0056
+#define CTC_MSA_INSN		0x583e0816
+#define LDD_MSA_INSN		0x58000837
+#define STD_MSA_INSN		0x5800083f
+#define COPY_UW_MSA_INSN	0x58f00056
+#define COPY_UD_MSA_INSN	0x58f80056
+#define INSERT_W_MSA_INSN	0x59300816
+#define INSERT_D_MSA_INSN	0x59380816
+#else
+#define CFC_MSA_INSN		0x787e0059
+#define CTC_MSA_INSN		0x783e0819
+#define LDD_MSA_INSN		0x78000823
+#define STD_MSA_INSN		0x78000827
+#define COPY_UW_MSA_INSN	0x78f00059
+#define COPY_UD_MSA_INSN	0x78f80059
+#define INSERT_W_MSA_INSN	0x79300819
+#define INSERT_D_MSA_INSN	0x79380819
+#endif
+
+	/*
+	 * Temporary until all toolchains in use include MSA support.
+	 */
+	.macro	cfcmsa	rd, cs
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	.insn
+	.word	CFC_MSA_INSN | (\cs << 11)
+	move	\rd, $1
+	.set	pop
+	.endm
+
+	.macro	ctcmsa	cd, rs
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	move	$1, \rs
+	.word	CTC_MSA_INSN | (\cd << 6)
+	.set	pop
+	.endm
+
+	.macro	ld_d	wd, off, base
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	addu	$1, \base, \off
+	.word	LDD_MSA_INSN | (\wd << 6)
+	.set	pop
+	.endm
+
+	.macro	st_d	wd, off, base
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	addu	$1, \base, \off
+	.word	STD_MSA_INSN | (\wd << 6)
+	.set	pop
+	.endm
+
+	.macro	copy_u_w	rd, ws, n
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	.insn
+	.word	COPY_UW_MSA_INSN | (\n << 16) | (\ws << 11)
+	/* move triggers an assembler bug... */
+	or	\rd, $1, zero
+	.set	pop
+	.endm
+
+	.macro	copy_u_d	rd, ws, n
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	.insn
+	.word	COPY_UD_MSA_INSN | (\n << 16) | (\ws << 11)
+	/* move triggers an assembler bug... */
+	or	\rd, $1, zero
+	.set	pop
+	.endm
+
+	.macro	insert_w	wd, n, rs
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	/* move triggers an assembler bug... */
+	or	$1, \rs, zero
+	.word	INSERT_W_MSA_INSN | (\n << 16) | (\wd << 6)
+	.set	pop
+	.endm
+
+	.macro	insert_d	wd, n, rs
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	/* move triggers an assembler bug... */
+	or	$1, \rs, zero
+	.word	INSERT_D_MSA_INSN | (\n << 16) | (\wd << 6)
+	.set	pop
+	.endm
+#endif
+
+	.macro	msa_save_all	thread
+	st_d	0, THREAD_FPR0, \thread
+	st_d	1, THREAD_FPR1, \thread
+	st_d	2, THREAD_FPR2, \thread
+	st_d	3, THREAD_FPR3, \thread
+	st_d	4, THREAD_FPR4, \thread
+	st_d	5, THREAD_FPR5, \thread
+	st_d	6, THREAD_FPR6, \thread
+	st_d	7, THREAD_FPR7, \thread
+	st_d	8, THREAD_FPR8, \thread
+	st_d	9, THREAD_FPR9, \thread
+	st_d	10, THREAD_FPR10, \thread
+	st_d	11, THREAD_FPR11, \thread
+	st_d	12, THREAD_FPR12, \thread
+	st_d	13, THREAD_FPR13, \thread
+	st_d	14, THREAD_FPR14, \thread
+	st_d	15, THREAD_FPR15, \thread
+	st_d	16, THREAD_FPR16, \thread
+	st_d	17, THREAD_FPR17, \thread
+	st_d	18, THREAD_FPR18, \thread
+	st_d	19, THREAD_FPR19, \thread
+	st_d	20, THREAD_FPR20, \thread
+	st_d	21, THREAD_FPR21, \thread
+	st_d	22, THREAD_FPR22, \thread
+	st_d	23, THREAD_FPR23, \thread
+	st_d	24, THREAD_FPR24, \thread
+	st_d	25, THREAD_FPR25, \thread
+	st_d	26, THREAD_FPR26, \thread
+	st_d	27, THREAD_FPR27, \thread
+	st_d	28, THREAD_FPR28, \thread
+	st_d	29, THREAD_FPR29, \thread
+	st_d	30, THREAD_FPR30, \thread
+	st_d	31, THREAD_FPR31, \thread
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	cfcmsa	$1, MSA_CSR
+	sw	$1, THREAD_MSA_CSR(\thread)
+	.set	pop
+	.endm
+
+	.macro	msa_restore_all	thread
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	lw	$1, THREAD_MSA_CSR(\thread)
+	ctcmsa	MSA_CSR, $1
+	.set	pop
+	ld_d	0, THREAD_FPR0, \thread
+	ld_d	1, THREAD_FPR1, \thread
+	ld_d	2, THREAD_FPR2, \thread
+	ld_d	3, THREAD_FPR3, \thread
+	ld_d	4, THREAD_FPR4, \thread
+	ld_d	5, THREAD_FPR5, \thread
+	ld_d	6, THREAD_FPR6, \thread
+	ld_d	7, THREAD_FPR7, \thread
+	ld_d	8, THREAD_FPR8, \thread
+	ld_d	9, THREAD_FPR9, \thread
+	ld_d	10, THREAD_FPR10, \thread
+	ld_d	11, THREAD_FPR11, \thread
+	ld_d	12, THREAD_FPR12, \thread
+	ld_d	13, THREAD_FPR13, \thread
+	ld_d	14, THREAD_FPR14, \thread
+	ld_d	15, THREAD_FPR15, \thread
+	ld_d	16, THREAD_FPR16, \thread
+	ld_d	17, THREAD_FPR17, \thread
+	ld_d	18, THREAD_FPR18, \thread
+	ld_d	19, THREAD_FPR19, \thread
+	ld_d	20, THREAD_FPR20, \thread
+	ld_d	21, THREAD_FPR21, \thread
+	ld_d	22, THREAD_FPR22, \thread
+	ld_d	23, THREAD_FPR23, \thread
+	ld_d	24, THREAD_FPR24, \thread
+	ld_d	25, THREAD_FPR25, \thread
+	ld_d	26, THREAD_FPR26, \thread
+	ld_d	27, THREAD_FPR27, \thread
+	ld_d	28, THREAD_FPR28, \thread
+	ld_d	29, THREAD_FPR29, \thread
+	ld_d	30, THREAD_FPR30, \thread
+	ld_d	31, THREAD_FPR31, \thread
+	.endm
+
+	.macro	msa_init_upper wd
+#ifdef CONFIG_64BIT
+	insert_d \wd, 1
+#else
+	insert_w \wd, 2
+	insert_w \wd, 3
+#endif
+	.if	31-\wd
+	msa_init_upper	(\wd+1)
+	.endif
+	.endm
+
+	.macro	msa_init_all_upper
+	.set	push
+	.set	noat
+	SET_HARDFLOAT
+	not	$1, zero
+	msa_init_upper	0
+	.set	pop
+	.endm
+
+#endif /* _ASM_ASMMACRO_H */

arch/mips/include/asm/atomic.h

@@ -0,0 +1,581 @@
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc..
+ *
+ * But use these as seldom as possible since they are much more slower
+ * than regular operations.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 97, 99, 2000, 03, 04, 06 by Ralf Baechle
+ */
+#ifndef _ASM_ATOMIC_H
+#define _ASM_ATOMIC_H
+
+#include <linux/irqflags.h>
+#include <linux/types.h>
+#include <asm/barrier.h>
+#include <asm/cpu-features.h>
+#include <asm/cmpxchg.h>
+#include <asm/war.h>
+
+#define ATOMIC_INIT(i)	  { (i) }
+
+/*
+ * atomic_read - read atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically reads the value of @v.
+ */
+#define atomic_read(v)		ACCESS_ONCE((v)->counter)
+
+/*
+ * atomic_set - set atomic variable
+ * @v: pointer of type atomic_t
+ * @i: required value
+ *
+ * Atomically sets the value of @v to @i.
+ */
+#define atomic_set(v, i)		((v)->counter = (i))
+
+#define ATOMIC_OP(op, c_op, asm_op)						\
+static __inline__ void atomic_##op(int i, atomic_t * v)				\
+{										\
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {				\
+		int temp;							\
+										\
+		__asm__ __volatile__(						\
+		"	.set	arch=r4000				\n"	\
+		"1:	ll	%0, %1		# atomic_" #op "	\n"	\
+		"	" #asm_op " %0, %2				\n"	\
+		"	sc	%0, %1					\n"	\
+		"	beqzl	%0, 1b					\n"	\
+		"	.set	mips0					\n"	\
+		: "=&r" (temp), "+m" (v->counter)				\
+		: "Ir" (i));							\
+	} else if (kernel_uses_llsc) {						\
+		int temp;							\
+										\
+		do {								\
+			__asm__ __volatile__(					\
+			"	.set	arch=r4000			\n"	\
+			"	ll	%0, %1		# atomic_" #op "\n"	\
+			"	" #asm_op " %0, %2			\n"	\
+			"	sc	%0, %1				\n"	\
+			"	.set	mips0				\n"	\
+			: "=&r" (temp), "+m" (v->counter)			\
+			: "Ir" (i));						\
+		} while (unlikely(!temp));					\
+	} else {								\
+		unsigned long flags;						\
+										\
+		raw_local_irq_save(flags);					\
+		v->counter c_op i;						\
+		raw_local_irq_restore(flags);					\
+	}									\
+}										\
+
+#define ATOMIC_OP_RETURN(op, c_op, asm_op)					\
+static __inline__ int atomic_##op##_return(int i, atomic_t * v)			\
+{										\
+	int result;								\
+										\
+	smp_mb__before_llsc();							\
+										\
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {				\
+		int temp;							\
+										\
+		__asm__ __volatile__(						\
+		"	.set	arch=r4000				\n"	\
+		"1:	ll	%1, %2		# atomic_" #op "_return	\n"	\
+		"	" #asm_op " %0, %1, %3				\n"	\
+		"	sc	%0, %2					\n"	\
+		"	beqzl	%0, 1b					\n"	\
+		"	" #asm_op " %0, %1, %3				\n"	\
+		"	.set	mips0					\n"	\
+		: "=&r" (result), "=&r" (temp), "+m" (v->counter)		\
+		: "Ir" (i));							\
+	} else if (kernel_uses_llsc) {						\
+		int temp;							\
+										\
+		do {								\
+			__asm__ __volatile__(					\
+			"	.set	arch=r4000			\n"	\
+			"	ll	%1, %2	# atomic_" #op "_return	\n"	\
+			"	" #asm_op " %0, %1, %3			\n"	\
+			"	sc	%0, %2				\n"	\
+			"	.set	mips0				\n"	\
+			: "=&r" (result), "=&r" (temp), "+m" (v->counter)	\
+			: "Ir" (i));						\
+		} while (unlikely(!result));					\
+										\
+		result = temp; result c_op i;					\
+	} else {								\
+		unsigned long flags;						\
+										\
+		raw_local_irq_save(flags);					\
+		result = v->counter;						\
+		result c_op i;							\
+		v->counter = result;						\
+		raw_local_irq_restore(flags);					\
+	}									\
+										\
+	smp_llsc_mb();								\
+										\
+	return result;								\
+}
+
+#define ATOMIC_OPS(op, c_op, asm_op)						\
+	ATOMIC_OP(op, c_op, asm_op)						\
+	ATOMIC_OP_RETURN(op, c_op, asm_op)
+
+ATOMIC_OPS(add, +=, addu)
+ATOMIC_OPS(sub, -=, subu)
+
+#undef ATOMIC_OPS
+#undef ATOMIC_OP_RETURN
+#undef ATOMIC_OP
+
+/*
+ * atomic_sub_if_positive - conditionally subtract integer from atomic variable
+ * @i: integer value to subtract
+ * @v: pointer of type atomic_t
+ *
+ * Atomically test @v and subtract @i if @v is greater or equal than @i.
+ * The function returns the old value of @v minus @i.
+ */
+static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
+{
+	int result;
+
+	smp_mb__before_llsc();
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		int temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	ll	%1, %2		# atomic_sub_if_positive\n"
+		"	subu	%0, %1, %3				\n"
+		"	bltz	%0, 1f					\n"
+		"	sc	%0, %2					\n"
+		"	.set	noreorder				\n"
+		"	beqzl	%0, 1b					\n"
+		"	 subu	%0, %1, %3				\n"
+		"	.set	reorder					\n"
+		"1:							\n"
+		"	.set	mips0					\n"
+		: "=&r" (result), "=&r" (temp), "+m" (v->counter)
+		: "Ir" (i), "m" (v->counter)
+		: "memory");
+	} else if (kernel_uses_llsc) {
+		int temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	ll	%1, %2		# atomic_sub_if_positive\n"
+		"	subu	%0, %1, %3				\n"
+		"	bltz	%0, 1f					\n"
+		"	sc	%0, %2					\n"
+		"	.set	noreorder				\n"
+		"	beqz	%0, 1b					\n"
+		"	 subu	%0, %1, %3				\n"
+		"	.set	reorder					\n"
+		"1:							\n"
+		"	.set	mips0					\n"
+		: "=&r" (result), "=&r" (temp), "+m" (v->counter)
+		: "Ir" (i));
+	} else {
+		unsigned long flags;
+
+		raw_local_irq_save(flags);
+		result = v->counter;
+		result -= i;
+		if (result >= 0)
+			v->counter = result;
+		raw_local_irq_restore(flags);
+	}
+
+	smp_llsc_mb();
+
+	return result;
+}
+
+#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))
+
+/**
+ * __atomic_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns the old value of @v.
+ */
+static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
+{
+	int c, old;
+	c = atomic_read(v);
+	for (;;) {
+		if (unlikely(c == (u)))
+			break;
+		old = atomic_cmpxchg((v), c, c + (a));
+		if (likely(old == c))
+			break;
+		c = old;
+	}
+	return c;
+}
+
+#define atomic_dec_return(v) atomic_sub_return(1, (v))
+#define atomic_inc_return(v) atomic_add_return(1, (v))
+
+/*
+ * atomic_sub_and_test - subtract value from variable and test result
+ * @i: integer value to subtract
+ * @v: pointer of type atomic_t
+ *
+ * Atomically subtracts @i from @v and returns
+ * true if the result is zero, or false for all
+ * other cases.
+ */
+#define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0)
+
+/*
+ * atomic_inc_and_test - increment and test
+ * @v: pointer of type atomic_t
+ *
+ * Atomically increments @v by 1
+ * and returns true if the result is zero, or false for all
+ * other cases.
+ */
+#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
+
+/*
+ * atomic_dec_and_test - decrement by 1 and test
+ * @v: pointer of type atomic_t
+ *
+ * Atomically decrements @v by 1 and
+ * returns true if the result is 0, or false for all other
+ * cases.
+ */
+#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
+
+/*
+ * atomic_dec_if_positive - decrement by 1 if old value positive
+ * @v: pointer of type atomic_t
+ */
+#define atomic_dec_if_positive(v)	atomic_sub_if_positive(1, v)
+
+/*
+ * atomic_inc - increment atomic variable
+ * @v: pointer of type atomic_t
+ *
+ * Atomically increments @v by 1.
+ */
+#define atomic_inc(v) atomic_add(1, (v))
+
+/*
+ * atomic_dec - decrement and test
+ * @v: pointer of type atomic_t
+ *
+ * Atomically decrements @v by 1.
+ */
+#define atomic_dec(v) atomic_sub(1, (v))
+
+/*
+ * atomic_add_negative - add and test if negative
+ * @v: pointer of type atomic_t
+ * @i: integer value to add
+ *
+ * Atomically adds @i to @v and returns true
+ * if the result is negative, or false when
+ * result is greater than or equal to zero.
+ */
+#define atomic_add_negative(i, v) (atomic_add_return(i, (v)) < 0)
+
+#ifdef CONFIG_64BIT
+
+#define ATOMIC64_INIT(i)    { (i) }
+
+/*
+ * atomic64_read - read atomic variable
+ * @v: pointer of type atomic64_t
+ *
+ */
+#define atomic64_read(v)	ACCESS_ONCE((v)->counter)
+
+/*
+ * atomic64_set - set atomic variable
+ * @v: pointer of type atomic64_t
+ * @i: required value
+ */
+#define atomic64_set(v, i)	((v)->counter = (i))
+
+#define ATOMIC64_OP(op, c_op, asm_op)						\
+static __inline__ void atomic64_##op(long i, atomic64_t * v)			\
+{										\
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {				\
+		long temp;							\
+										\
+		__asm__ __volatile__(						\
+		"	.set	arch=r4000				\n"	\
+		"1:	lld	%0, %1		# atomic64_" #op "	\n"	\
+		"	" #asm_op " %0, %2				\n"	\
+		"	scd	%0, %1					\n"	\
+		"	beqzl	%0, 1b					\n"	\
+		"	.set	mips0					\n"	\
+		: "=&r" (temp), "+m" (v->counter)				\
+		: "Ir" (i));							\
+	} else if (kernel_uses_llsc) {						\
+		long temp;							\
+										\
+		do {								\
+			__asm__ __volatile__(					\
+			"	.set	arch=r4000			\n"	\
+			"	lld	%0, %1		# atomic64_" #op "\n"	\
+			"	" #asm_op " %0, %2			\n"	\
+			"	scd	%0, %1				\n"	\
+			"	.set	mips0				\n"	\
+			: "=&r" (temp), "+m" (v->counter)			\
+			: "Ir" (i));						\
+		} while (unlikely(!temp));					\
+	} else {								\
+		unsigned long flags;						\
+										\
+		raw_local_irq_save(flags);					\
+		v->counter c_op i;						\
+		raw_local_irq_restore(flags);					\
+	}									\
+}										\
+
+#define ATOMIC64_OP_RETURN(op, c_op, asm_op)					\
+static __inline__ long atomic64_##op##_return(long i, atomic64_t * v)		\
+{										\
+	long result;								\
+										\
+	smp_mb__before_llsc();							\
+										\
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {				\
+		long temp;							\
+										\
+		__asm__ __volatile__(						\
+		"	.set	arch=r4000				\n"	\
+		"1:	lld	%1, %2		# atomic64_" #op "_return\n"	\
+		"	" #asm_op " %0, %1, %3				\n"	\
+		"	scd	%0, %2					\n"	\
+		"	beqzl	%0, 1b					\n"	\
+		"	" #asm_op " %0, %1, %3				\n"	\
+		"	.set	mips0					\n"	\
+		: "=&r" (result), "=&r" (temp), "+m" (v->counter)		\
+		: "Ir" (i));							\
+	} else if (kernel_uses_llsc) {						\
+		long temp;							\
+										\
+		do {								\
+			__asm__ __volatile__(					\
+			"	.set	arch=r4000			\n"	\
+			"	lld	%1, %2	# atomic64_" #op "_return\n"	\
+			"	" #asm_op " %0, %1, %3			\n"	\
+			"	scd	%0, %2				\n"	\
+			"	.set	mips0				\n"	\
+			: "=&r" (result), "=&r" (temp), "=m" (v->counter)	\
+			: "Ir" (i), "m" (v->counter)				\
+			: "memory");						\
+		} while (unlikely(!result));					\
+										\
+		result = temp; result c_op i;					\
+	} else {								\
+		unsigned long flags;						\
+										\
+		raw_local_irq_save(flags);					\
+		result = v->counter;						\
+		result c_op i;							\
+		v->counter = result;						\
+		raw_local_irq_restore(flags);					\
+	}									\
+										\
+	smp_llsc_mb();								\
+										\
+	return result;								\
+}
+
+#define ATOMIC64_OPS(op, c_op, asm_op)						\
+	ATOMIC64_OP(op, c_op, asm_op)						\
+	ATOMIC64_OP_RETURN(op, c_op, asm_op)
+
+ATOMIC64_OPS(add, +=, daddu)
+ATOMIC64_OPS(sub, -=, dsubu)
+
+#undef ATOMIC64_OPS
+#undef ATOMIC64_OP_RETURN
+#undef ATOMIC64_OP
+
+/*
+ * atomic64_sub_if_positive - conditionally subtract integer from atomic variable
+ * @i: integer value to subtract
+ * @v: pointer of type atomic64_t
+ *
+ * Atomically test @v and subtract @i if @v is greater or equal than @i.
+ * The function returns the old value of @v minus @i.
+ */
+static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
+{
+	long result;
+
+	smp_mb__before_llsc();
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		long temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	lld	%1, %2		# atomic64_sub_if_positive\n"
+		"	dsubu	%0, %1, %3				\n"
+		"	bltz	%0, 1f					\n"
+		"	scd	%0, %2					\n"
+		"	.set	noreorder				\n"
+		"	beqzl	%0, 1b					\n"
+		"	 dsubu	%0, %1, %3				\n"
+		"	.set	reorder					\n"
+		"1:							\n"
+		"	.set	mips0					\n"
+		: "=&r" (result), "=&r" (temp), "=m" (v->counter)
+		: "Ir" (i), "m" (v->counter)
+		: "memory");
+	} else if (kernel_uses_llsc) {
+		long temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	lld	%1, %2		# atomic64_sub_if_positive\n"
+		"	dsubu	%0, %1, %3				\n"
+		"	bltz	%0, 1f					\n"
+		"	scd	%0, %2					\n"
+		"	.set	noreorder				\n"
+		"	beqz	%0, 1b					\n"
+		"	 dsubu	%0, %1, %3				\n"
+		"	.set	reorder					\n"
+		"1:							\n"
+		"	.set	mips0					\n"
+		: "=&r" (result), "=&r" (temp), "+m" (v->counter)
+		: "Ir" (i));
+	} else {
+		unsigned long flags;
+
+		raw_local_irq_save(flags);
+		result = v->counter;
+		result -= i;
+		if (result >= 0)
+			v->counter = result;
+		raw_local_irq_restore(flags);
+	}
+
+	smp_llsc_mb();
+
+	return result;
+}
+
+#define atomic64_cmpxchg(v, o, n) \
+	((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
+#define atomic64_xchg(v, new) (xchg(&((v)->counter), (new)))
+
+/**
+ * atomic64_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic64_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns the old value of @v.
+ */
+static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
+{
+	long c, old;
+	c = atomic64_read(v);
+	for (;;) {
+		if (unlikely(c == (u)))
+			break;
+		old = atomic64_cmpxchg((v), c, c + (a));
+		if (likely(old == c))
+			break;
+		c = old;
+	}
+	return c != (u);
+}
+
+#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+
+#define atomic64_dec_return(v) atomic64_sub_return(1, (v))
+#define atomic64_inc_return(v) atomic64_add_return(1, (v))
+
+/*
+ * atomic64_sub_and_test - subtract value from variable and test result
+ * @i: integer value to subtract
+ * @v: pointer of type atomic64_t
+ *
+ * Atomically subtracts @i from @v and returns
+ * true if the result is zero, or false for all
+ * other cases.
+ */
+#define atomic64_sub_and_test(i, v) (atomic64_sub_return((i), (v)) == 0)
+
+/*
+ * atomic64_inc_and_test - increment and test
+ * @v: pointer of type atomic64_t
+ *
+ * Atomically increments @v by 1
+ * and returns true if the result is zero, or false for all
+ * other cases.
+ */
+#define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
+
+/*
+ * atomic64_dec_and_test - decrement by 1 and test
+ * @v: pointer of type atomic64_t
+ *
+ * Atomically decrements @v by 1 and
+ * returns true if the result is 0, or false for all other
+ * cases.
+ */
+#define atomic64_dec_and_test(v) (atomic64_sub_return(1, (v)) == 0)
+
+/*
+ * atomic64_dec_if_positive - decrement by 1 if old value positive
+ * @v: pointer of type atomic64_t
+ */
+#define atomic64_dec_if_positive(v)	atomic64_sub_if_positive(1, v)
+
+/*
+ * atomic64_inc - increment atomic variable
+ * @v: pointer of type atomic64_t
+ *
+ * Atomically increments @v by 1.
+ */
+#define atomic64_inc(v) atomic64_add(1, (v))
+
+/*
+ * atomic64_dec - decrement and test
+ * @v: pointer of type atomic64_t
+ *
+ * Atomically decrements @v by 1.
+ */
+#define atomic64_dec(v) atomic64_sub(1, (v))
+
+/*
+ * atomic64_add_negative - add and test if negative
+ * @v: pointer of type atomic64_t
+ * @i: integer value to add
+ *
+ * Atomically adds @i to @v and returns true
+ * if the result is negative, or false when
+ * result is greater than or equal to zero.
+ */
+#define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0)
+
+#endif /* CONFIG_64BIT */
+
+#endif /* _ASM_ATOMIC_H */

arch/mips/include/asm/barrier.h

@@ -0,0 +1,201 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2006 by Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef __ASM_BARRIER_H
+#define __ASM_BARRIER_H
+
+#include <asm/addrspace.h>
+
+/*
+ * read_barrier_depends - Flush all pending reads that subsequents reads
+ * depend on.
+ *
+ * No data-dependent reads from memory-like regions are ever reordered
+ * over this barrier.  All reads preceding this primitive are guaranteed
+ * to access memory (but not necessarily other CPUs' caches) before any
+ * reads following this primitive that depend on the data return by
+ * any of the preceding reads.  This primitive is much lighter weight than
+ * rmb() on most CPUs, and is never heavier weight than is
+ * rmb().
+ *
+ * These ordering constraints are respected by both the local CPU
+ * and the compiler.
+ *
+ * Ordering is not guaranteed by anything other than these primitives,
+ * not even by data dependencies.  See the documentation for
+ * memory_barrier() for examples and URLs to more information.
+ *
+ * For example, the following code would force ordering (the initial
+ * value of "a" is zero, "b" is one, and "p" is "&a"):
+ *
+ * <programlisting>
+ *	CPU 0				CPU 1
+ *
+ *	b = 2;
+ *	memory_barrier();
+ *	p = &b;				q = p;
+ *					read_barrier_depends();
+ *					d = *q;
+ * </programlisting>
+ *
+ * because the read of "*q" depends on the read of "p" and these
+ * two reads are separated by a read_barrier_depends().  However,
+ * the following code, with the same initial values for "a" and "b":
+ *
+ * <programlisting>
+ *	CPU 0				CPU 1
+ *
+ *	a = 2;
+ *	memory_barrier();
+ *	b = 3;				y = b;
+ *					read_barrier_depends();
+ *					x = a;
+ * </programlisting>
+ *
+ * does not enforce ordering, since there is no data dependency between
+ * the read of "a" and the read of "b".  Therefore, on some CPUs, such
+ * as Alpha, "y" could be set to 3 and "x" to 0.  Use rmb()
+ * in cases like this where there are no data dependencies.
+ */
+
+#define read_barrier_depends()		do { } while(0)
+#define smp_read_barrier_depends()	do { } while(0)
+
+#ifdef CONFIG_CPU_HAS_SYNC
+#define __sync()				\
+	__asm__ __volatile__(			\
+		".set	push\n\t"		\
+		".set	noreorder\n\t"		\
+		".set	mips2\n\t"		\
+		"sync\n\t"			\
+		".set	pop"			\
+		: /* no output */		\
+		: /* no input */		\
+		: "memory")
+#else
+#define __sync()	do { } while(0)
+#endif
+
+#define __fast_iob()				\
+	__asm__ __volatile__(			\
+		".set	push\n\t"		\
+		".set	noreorder\n\t"		\
+		"lw	$0,%0\n\t"		\
+		"nop\n\t"			\
+		".set	pop"			\
+		: /* no output */		\
+		: "m" (*(int *)CKSEG1)		\
+		: "memory")
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+# define OCTEON_SYNCW_STR	".set push\n.set arch=octeon\nsyncw\nsyncw\n.set pop\n"
+# define __syncw()	__asm__ __volatile__(OCTEON_SYNCW_STR : : : "memory")
+
+# define fast_wmb()	__syncw()
+# define fast_rmb()	barrier()
+# define fast_mb()	__sync()
+# define fast_iob()	do { } while (0)
+#else /* ! CONFIG_CPU_CAVIUM_OCTEON */
+# define fast_wmb()	__sync()
+# define fast_rmb()	__sync()
+# define fast_mb()	__sync()
+# ifdef CONFIG_SGI_IP28
+#  define fast_iob()				\
+	__asm__ __volatile__(			\
+		".set	push\n\t"		\
+		".set	noreorder\n\t"		\
+		"lw	$0,%0\n\t"		\
+		"sync\n\t"			\
+		"lw	$0,%0\n\t"		\
+		".set	pop"			\
+		: /* no output */		\
+		: "m" (*(int *)CKSEG1ADDR(0x1fa00004)) \
+		: "memory")
+# else
+#  define fast_iob()				\
+	do {					\
+		__sync();			\
+		__fast_iob();			\
+	} while (0)
+# endif
+#endif /* CONFIG_CPU_CAVIUM_OCTEON */
+
+#ifdef CONFIG_CPU_HAS_WB
+
+#include <asm/wbflush.h>
+
+#define wmb()		fast_wmb()
+#define rmb()		fast_rmb()
+#define mb()		wbflush()
+#define iob()		wbflush()
+
+#else /* !CONFIG_CPU_HAS_WB */
+
+#define wmb()		fast_wmb()
+#define rmb()		fast_rmb()
+#define mb()		fast_mb()
+#define iob()		fast_iob()
+
+#endif /* !CONFIG_CPU_HAS_WB */
+
+#if defined(CONFIG_WEAK_ORDERING) && defined(CONFIG_SMP)
+# ifdef CONFIG_CPU_CAVIUM_OCTEON
+#  define smp_mb()	__sync()
+#  define smp_rmb()	barrier()
+#  define smp_wmb()	__syncw()
+# else
+#  define smp_mb()	__asm__ __volatile__("sync" : : :"memory")
+#  define smp_rmb()	__asm__ __volatile__("sync" : : :"memory")
+#  define smp_wmb()	__asm__ __volatile__("sync" : : :"memory")
+# endif
+#else
+#define smp_mb()	barrier()
+#define smp_rmb()	barrier()
+#define smp_wmb()	barrier()
+#endif
+
+#if defined(CONFIG_WEAK_REORDERING_BEYOND_LLSC) && defined(CONFIG_SMP)
+#define __WEAK_LLSC_MB		"	sync	\n"
+#else
+#define __WEAK_LLSC_MB		"		\n"
+#endif
+
+#define set_mb(var, value) \
+	do { var = value; smp_mb(); } while (0)
+
+#define smp_llsc_mb()	__asm__ __volatile__(__WEAK_LLSC_MB : : :"memory")
+
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+#define smp_mb__before_llsc() smp_wmb()
+/* Cause previous writes to become visible on all CPUs as soon as possible */
+#define nudge_writes() __asm__ __volatile__(".set push\n\t"		\
+					    ".set arch=octeon\n\t"	\
+					    "syncw\n\t"			\
+					    ".set pop" : : : "memory")
+#else
+#define smp_mb__before_llsc() smp_llsc_mb()
+#define nudge_writes() mb()
+#endif
+
+#define smp_store_release(p, v)						\
+do {									\
+	compiletime_assert_atomic_type(*p);				\
+	smp_mb();							\
+	ACCESS_ONCE(*p) = (v);						\
+} while (0)
+
+#define smp_load_acquire(p)						\
+({									\
+	typeof(*p) ___p1 = ACCESS_ONCE(*p);				\
+	compiletime_assert_atomic_type(*p);				\
+	smp_mb();							\
+	___p1;								\
+})
+
+#define smp_mb__before_atomic()	smp_mb__before_llsc()
+#define smp_mb__after_atomic()	smp_llsc_mb()
+
+#endif /* __ASM_BARRIER_H */

arch/mips/include/asm/bcache.h

@@ -0,0 +1,60 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 1997, 1999 by Ralf Baechle
+ * Copyright (c) 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_BCACHE_H
+#define _ASM_BCACHE_H
+
+
+/* Some R4000 / R4400 / R4600 / R5000 machines may have a non-dma-coherent,
+   chipset implemented caches.	On machines with other CPUs the CPU does the
+   cache thing itself. */
+struct bcache_ops {
+	void (*bc_enable)(void);
+	void (*bc_disable)(void);
+	void (*bc_wback_inv)(unsigned long page, unsigned long size);
+	void (*bc_inv)(unsigned long page, unsigned long size);
+};
+
+extern void indy_sc_init(void);
+
+#ifdef CONFIG_BOARD_SCACHE
+
+extern struct bcache_ops *bcops;
+
+static inline void bc_enable(void)
+{
+	bcops->bc_enable();
+}
+
+static inline void bc_disable(void)
+{
+	bcops->bc_disable();
+}
+
+static inline void bc_wback_inv(unsigned long page, unsigned long size)
+{
+	bcops->bc_wback_inv(page, size);
+}
+
+static inline void bc_inv(unsigned long page, unsigned long size)
+{
+	bcops->bc_inv(page, size);
+}
+
+#else /* !defined(CONFIG_BOARD_SCACHE) */
+
+/* Not R4000 / R4400 / R4600 / R5000.  */
+
+#define bc_enable() do { } while (0)
+#define bc_disable() do { } while (0)
+#define bc_wback_inv(page, size) do { } while (0)
+#define bc_inv(page, size) do { } while (0)
+
+#endif /* !defined(CONFIG_BOARD_SCACHE) */
+
+#endif /* _ASM_BCACHE_H */

arch/mips/include/asm/bitops.h

@@ -0,0 +1,632 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 1994 - 1997, 99, 2000, 06, 07  Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (c) 1999, 2000  Silicon Graphics, Inc.
+ */
+#ifndef _ASM_BITOPS_H
+#define _ASM_BITOPS_H
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <asm/barrier.h>
+#include <asm/byteorder.h>		/* sigh ... */
+#include <asm/cpu-features.h>
+#include <asm/sgidefs.h>
+#include <asm/war.h>
+
+#if _MIPS_SZLONG == 32
+#define SZLONG_LOG 5
+#define SZLONG_MASK 31UL
+#define __LL		"ll	"
+#define __SC		"sc	"
+#define __INS		"ins	"
+#define __EXT		"ext	"
+#elif _MIPS_SZLONG == 64
+#define SZLONG_LOG 6
+#define SZLONG_MASK 63UL
+#define __LL		"lld	"
+#define __SC		"scd	"
+#define __INS		"dins	 "
+#define __EXT		"dext	 "
+#endif
+
+/*
+ * These are the "slower" versions of the functions and are in bitops.c.
+ * These functions call raw_local_irq_{save,restore}().
+ */
+void __mips_set_bit(unsigned long nr, volatile unsigned long *addr);
+void __mips_clear_bit(unsigned long nr, volatile unsigned long *addr);
+void __mips_change_bit(unsigned long nr, volatile unsigned long *addr);
+int __mips_test_and_set_bit(unsigned long nr,
+			    volatile unsigned long *addr);
+int __mips_test_and_set_bit_lock(unsigned long nr,
+				 volatile unsigned long *addr);
+int __mips_test_and_clear_bit(unsigned long nr,
+			      volatile unsigned long *addr);
+int __mips_test_and_change_bit(unsigned long nr,
+			       volatile unsigned long *addr);
+
+
+/*
+ * set_bit - Atomically set a bit in memory
+ * @nr: the bit to set
+ * @addr: the address to start counting from
+ *
+ * This function is atomic and may not be reordered.  See __set_bit()
+ * if you do not require the atomic guarantees.
+ * Note that @nr may be almost arbitrarily large; this function is not
+ * restricted to acting on a single-word quantity.
+ */
+static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+	int bit = nr & SZLONG_MASK;
+	unsigned long temp;
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	" __LL "%0, %1			# set_bit	\n"
+		"	or	%0, %2					\n"
+		"	" __SC	"%0, %1					\n"
+		"	beqzl	%0, 1b					\n"
+		"	.set	mips0					\n"
+		: "=&r" (temp), "=m" (*m)
+		: "ir" (1UL << bit), "m" (*m));
+#ifdef CONFIG_CPU_MIPSR2
+	} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
+		do {
+			__asm__ __volatile__(
+			"	" __LL "%0, %1		# set_bit	\n"
+			"	" __INS "%0, %3, %2, 1			\n"
+			"	" __SC "%0, %1				\n"
+			: "=&r" (temp), "+m" (*m)
+			: "ir" (bit), "r" (~0));
+		} while (unlikely(!temp));
+#endif /* CONFIG_CPU_MIPSR2 */
+	} else if (kernel_uses_llsc) {
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	" __LL "%0, %1		# set_bit	\n"
+			"	or	%0, %2				\n"
+			"	" __SC	"%0, %1				\n"
+			"	.set	mips0				\n"
+			: "=&r" (temp), "+m" (*m)
+			: "ir" (1UL << bit));
+		} while (unlikely(!temp));
+	} else
+		__mips_set_bit(nr, addr);
+}
+
+/*
+ * clear_bit - Clears a bit in memory
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ *
+ * clear_bit() is atomic and may not be reordered.  However, it does
+ * not contain a memory barrier, so if it is used for locking purposes,
+ * you should call smp_mb__before_atomic() and/or smp_mb__after_atomic()
+ * in order to ensure changes are visible on other processors.
+ */
+static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+	int bit = nr & SZLONG_MASK;
+	unsigned long temp;
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	" __LL "%0, %1			# clear_bit	\n"
+		"	and	%0, %2					\n"
+		"	" __SC "%0, %1					\n"
+		"	beqzl	%0, 1b					\n"
+		"	.set	mips0					\n"
+		: "=&r" (temp), "+m" (*m)
+		: "ir" (~(1UL << bit)));
+#ifdef CONFIG_CPU_MIPSR2
+	} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
+		do {
+			__asm__ __volatile__(
+			"	" __LL "%0, %1		# clear_bit	\n"
+			"	" __INS "%0, $0, %2, 1			\n"
+			"	" __SC "%0, %1				\n"
+			: "=&r" (temp), "+m" (*m)
+			: "ir" (bit));
+		} while (unlikely(!temp));
+#endif /* CONFIG_CPU_MIPSR2 */
+	} else if (kernel_uses_llsc) {
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	" __LL "%0, %1		# clear_bit	\n"
+			"	and	%0, %2				\n"
+			"	" __SC "%0, %1				\n"
+			"	.set	mips0				\n"
+			: "=&r" (temp), "+m" (*m)
+			: "ir" (~(1UL << bit)));
+		} while (unlikely(!temp));
+	} else
+		__mips_clear_bit(nr, addr);
+}
+
+/*
+ * clear_bit_unlock - Clears a bit in memory
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ *
+ * clear_bit() is atomic and implies release semantics before the memory
+ * operation. It can be used for an unlock.
+ */
+static inline void clear_bit_unlock(unsigned long nr, volatile unsigned long *addr)
+{
+	smp_mb__before_atomic();
+	clear_bit(nr, addr);
+}
+
+/*
+ * change_bit - Toggle a bit in memory
+ * @nr: Bit to change
+ * @addr: Address to start counting from
+ *
+ * change_bit() is atomic and may not be reordered.
+ * Note that @nr may be almost arbitrarily large; this function is not
+ * restricted to acting on a single-word quantity.
+ */
+static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
+{
+	int bit = nr & SZLONG_MASK;
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000			\n"
+		"1:	" __LL "%0, %1		# change_bit	\n"
+		"	xor	%0, %2				\n"
+		"	" __SC	"%0, %1				\n"
+		"	beqzl	%0, 1b				\n"
+		"	.set	mips0				\n"
+		: "=&r" (temp), "+m" (*m)
+		: "ir" (1UL << bit));
+	} else if (kernel_uses_llsc) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	" __LL "%0, %1		# change_bit	\n"
+			"	xor	%0, %2				\n"
+			"	" __SC	"%0, %1				\n"
+			"	.set	mips0				\n"
+			: "=&r" (temp), "+m" (*m)
+			: "ir" (1UL << bit));
+		} while (unlikely(!temp));
+	} else
+		__mips_change_bit(nr, addr);
+}
+
+/*
+ * test_and_set_bit - Set a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static inline int test_and_set_bit(unsigned long nr,
+	volatile unsigned long *addr)
+{
+	int bit = nr & SZLONG_MASK;
+	unsigned long res;
+
+	smp_mb__before_llsc();
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	" __LL "%0, %1		# test_and_set_bit	\n"
+		"	or	%2, %0, %3				\n"
+		"	" __SC	"%2, %1					\n"
+		"	beqzl	%2, 1b					\n"
+		"	and	%2, %0, %3				\n"
+		"	.set	mips0					\n"
+		: "=&r" (temp), "+m" (*m), "=&r" (res)
+		: "r" (1UL << bit)
+		: "memory");
+	} else if (kernel_uses_llsc) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	" __LL "%0, %1	# test_and_set_bit	\n"
+			"	or	%2, %0, %3			\n"
+			"	" __SC	"%2, %1				\n"
+			"	.set	mips0				\n"
+			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "r" (1UL << bit)
+			: "memory");
+		} while (unlikely(!res));
+
+		res = temp & (1UL << bit);
+	} else
+		res = __mips_test_and_set_bit(nr, addr);
+
+	smp_llsc_mb();
+
+	return res != 0;
+}
+
+/*
+ * test_and_set_bit_lock - Set a bit and return its old value
+ * @nr: Bit to set
+ * @addr: Address to count from
+ *
+ * This operation is atomic and implies acquire ordering semantics
+ * after the memory operation.
+ */
+static inline int test_and_set_bit_lock(unsigned long nr,
+	volatile unsigned long *addr)
+{
+	int bit = nr & SZLONG_MASK;
+	unsigned long res;
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	" __LL "%0, %1		# test_and_set_bit	\n"
+		"	or	%2, %0, %3				\n"
+		"	" __SC	"%2, %1					\n"
+		"	beqzl	%2, 1b					\n"
+		"	and	%2, %0, %3				\n"
+		"	.set	mips0					\n"
+		: "=&r" (temp), "+m" (*m), "=&r" (res)
+		: "r" (1UL << bit)
+		: "memory");
+	} else if (kernel_uses_llsc) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	" __LL "%0, %1	# test_and_set_bit	\n"
+			"	or	%2, %0, %3			\n"
+			"	" __SC	"%2, %1				\n"
+			"	.set	mips0				\n"
+			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "r" (1UL << bit)
+			: "memory");
+		} while (unlikely(!res));
+
+		res = temp & (1UL << bit);
+	} else
+		res = __mips_test_and_set_bit_lock(nr, addr);
+
+	smp_llsc_mb();
+
+	return res != 0;
+}
+/*
+ * test_and_clear_bit - Clear a bit and return its old value
+ * @nr: Bit to clear
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static inline int test_and_clear_bit(unsigned long nr,
+	volatile unsigned long *addr)
+{
+	int bit = nr & SZLONG_MASK;
+	unsigned long res;
+
+	smp_mb__before_llsc();
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	" __LL	"%0, %1		# test_and_clear_bit	\n"
+		"	or	%2, %0, %3				\n"
+		"	xor	%2, %3					\n"
+		"	" __SC	"%2, %1					\n"
+		"	beqzl	%2, 1b					\n"
+		"	and	%2, %0, %3				\n"
+		"	.set	mips0					\n"
+		: "=&r" (temp), "+m" (*m), "=&r" (res)
+		: "r" (1UL << bit)
+		: "memory");
+#ifdef CONFIG_CPU_MIPSR2
+	} else if (kernel_uses_llsc && __builtin_constant_p(nr)) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		do {
+			__asm__ __volatile__(
+			"	" __LL	"%0, %1 # test_and_clear_bit	\n"
+			"	" __EXT "%2, %0, %3, 1			\n"
+			"	" __INS "%0, $0, %3, 1			\n"
+			"	" __SC	"%0, %1				\n"
+			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "ir" (bit)
+			: "memory");
+		} while (unlikely(!temp));
+#endif
+	} else if (kernel_uses_llsc) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	" __LL	"%0, %1 # test_and_clear_bit	\n"
+			"	or	%2, %0, %3			\n"
+			"	xor	%2, %3				\n"
+			"	" __SC	"%2, %1				\n"
+			"	.set	mips0				\n"
+			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "r" (1UL << bit)
+			: "memory");
+		} while (unlikely(!res));
+
+		res = temp & (1UL << bit);
+	} else
+		res = __mips_test_and_clear_bit(nr, addr);
+
+	smp_llsc_mb();
+
+	return res != 0;
+}
+
+/*
+ * test_and_change_bit - Change a bit and return its old value
+ * @nr: Bit to change
+ * @addr: Address to count from
+ *
+ * This operation is atomic and cannot be reordered.
+ * It also implies a memory barrier.
+ */
+static inline int test_and_change_bit(unsigned long nr,
+	volatile unsigned long *addr)
+{
+	int bit = nr & SZLONG_MASK;
+	unsigned long res;
+
+	smp_mb__before_llsc();
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	" __LL	"%0, %1		# test_and_change_bit	\n"
+		"	xor	%2, %0, %3				\n"
+		"	" __SC	"%2, %1					\n"
+		"	beqzl	%2, 1b					\n"
+		"	and	%2, %0, %3				\n"
+		"	.set	mips0					\n"
+		: "=&r" (temp), "+m" (*m), "=&r" (res)
+		: "r" (1UL << bit)
+		: "memory");
+	} else if (kernel_uses_llsc) {
+		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
+		unsigned long temp;
+
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	" __LL	"%0, %1 # test_and_change_bit	\n"
+			"	xor	%2, %0, %3			\n"
+			"	" __SC	"\t%2, %1			\n"
+			"	.set	mips0				\n"
+			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "r" (1UL << bit)
+			: "memory");
+		} while (unlikely(!res));
+
+		res = temp & (1UL << bit);
+	} else
+		res = __mips_test_and_change_bit(nr, addr);
+
+	smp_llsc_mb();
+
+	return res != 0;
+}
+
+#include <asm-generic/bitops/non-atomic.h>
+
+/*
+ * __clear_bit_unlock - Clears a bit in memory
+ * @nr: Bit to clear
+ * @addr: Address to start counting from
+ *
+ * __clear_bit() is non-atomic and implies release semantics before the memory
+ * operation. It can be used for an unlock if no other CPUs can concurrently
+ * modify other bits in the word.
+ */
+static inline void __clear_bit_unlock(unsigned long nr, volatile unsigned long *addr)
+{
+	smp_mb();
+	__clear_bit(nr, addr);
+}
+
+/*
+ * Return the bit position (0..63) of the most significant 1 bit in a word
+ * Returns -1 if no 1 bit exists
+ */
+static inline unsigned long __fls(unsigned long word)
+{
+	int num;
+
+	if (BITS_PER_LONG == 32 &&
+	    __builtin_constant_p(cpu_has_clo_clz) && cpu_has_clo_clz) {
+		__asm__(
+		"	.set	push					\n"
+		"	.set	mips32					\n"
+		"	clz	%0, %1					\n"
+		"	.set	pop					\n"
+		: "=r" (num)
+		: "r" (word));
+
+		return 31 - num;
+	}
+
+	if (BITS_PER_LONG == 64 &&
+	    __builtin_constant_p(cpu_has_mips64) && cpu_has_mips64) {
+		__asm__(
+		"	.set	push					\n"
+		"	.set	mips64					\n"
+		"	dclz	%0, %1					\n"
+		"	.set	pop					\n"
+		: "=r" (num)
+		: "r" (word));
+
+		return 63 - num;
+	}
+
+	num = BITS_PER_LONG - 1;
+
+#if BITS_PER_LONG == 64
+	if (!(word & (~0ul << 32))) {
+		num -= 32;
+		word <<= 32;
+	}
+#endif
+	if (!(word & (~0ul << (BITS_PER_LONG-16)))) {
+		num -= 16;
+		word <<= 16;
+	}
+	if (!(word & (~0ul << (BITS_PER_LONG-8)))) {
+		num -= 8;
+		word <<= 8;
+	}
+	if (!(word & (~0ul << (BITS_PER_LONG-4)))) {
+		num -= 4;
+		word <<= 4;
+	}
+	if (!(word & (~0ul << (BITS_PER_LONG-2)))) {
+		num -= 2;
+		word <<= 2;
+	}
+	if (!(word & (~0ul << (BITS_PER_LONG-1))))
+		num -= 1;
+	return num;
+}
+
+/*
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Returns 0..SZLONG-1
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+static inline unsigned long __ffs(unsigned long word)
+{
+	return __fls(word & -word);
+}
+
+/*
+ * fls - find last bit set.
+ * @word: The word to search
+ *
+ * This is defined the same way as ffs.
+ * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
+ */
+static inline int fls(int x)
+{
+	int r;
+
+	if (__builtin_constant_p(cpu_has_clo_clz) && cpu_has_clo_clz) {
+		__asm__(
+		"	.set	push					\n"
+		"	.set	mips32					\n"
+		"	clz	%0, %1					\n"
+		"	.set	pop					\n"
+		: "=r" (x)
+		: "r" (x));
+
+		return 32 - x;
+	}
+
+	r = 32;
+	if (!x)
+		return 0;
+	if (!(x & 0xffff0000u)) {
+		x <<= 16;
+		r -= 16;
+	}
+	if (!(x & 0xff000000u)) {
+		x <<= 8;
+		r -= 8;
+	}
+	if (!(x & 0xf0000000u)) {
+		x <<= 4;
+		r -= 4;
+	}
+	if (!(x & 0xc0000000u)) {
+		x <<= 2;
+		r -= 2;
+	}
+	if (!(x & 0x80000000u)) {
+		x <<= 1;
+		r -= 1;
+	}
+	return r;
+}
+
+#include <asm-generic/bitops/fls64.h>
+
+/*
+ * ffs - find first bit set.
+ * @word: The word to search
+ *
+ * This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ */
+static inline int ffs(int word)
+{
+	if (!word)
+		return 0;
+
+	return fls(word & -word);
+}
+
+#include <asm-generic/bitops/ffz.h>
+#include <asm-generic/bitops/find.h>
+
+#ifdef __KERNEL__
+
+#include <asm-generic/bitops/sched.h>
+
+#include <asm/arch_hweight.h>
+#include <asm-generic/bitops/const_hweight.h>
+
+#include <asm-generic/bitops/le.h>
+#include <asm-generic/bitops/ext2-atomic.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_BITOPS_H */

arch/mips/include/asm/bmips.h

@@ -0,0 +1,126 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2011 by Kevin Cernekee (cernekee@gmail.com)
+ *
+ * Definitions for BMIPS processors
+ */
+#ifndef _ASM_BMIPS_H
+#define _ASM_BMIPS_H
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <asm/addrspace.h>
+#include <asm/mipsregs.h>
+#include <asm/hazards.h>
+
+/* NOTE: the CBR register returns a PA, and it can be above 0xff00_0000 */
+#define BMIPS_GET_CBR()			((void __iomem *)(CKSEG1 | \
+					 (unsigned long) \
+					 ((read_c0_brcm_cbr() >> 18) << 18)))
+
+#define BMIPS_RAC_CONFIG		0x00000000
+#define BMIPS_RAC_ADDRESS_RANGE		0x00000004
+#define BMIPS_RAC_CONFIG_1		0x00000008
+#define BMIPS_L2_CONFIG			0x0000000c
+#define BMIPS_LMB_CONTROL		0x0000001c
+#define BMIPS_SYSTEM_BASE		0x00000020
+#define BMIPS_PERF_GLOBAL_CONTROL	0x00020000
+#define BMIPS_PERF_CONTROL_0		0x00020004
+#define BMIPS_PERF_CONTROL_1		0x00020008
+#define BMIPS_PERF_COUNTER_0		0x00020010
+#define BMIPS_PERF_COUNTER_1		0x00020014
+#define BMIPS_PERF_COUNTER_2		0x00020018
+#define BMIPS_PERF_COUNTER_3		0x0002001c
+#define BMIPS_RELO_VECTOR_CONTROL_0	0x00030000
+#define BMIPS_RELO_VECTOR_CONTROL_1	0x00038000
+
+#define BMIPS_NMI_RESET_VEC		0x80000000
+#define BMIPS_WARM_RESTART_VEC		0x80000380
+
+#define ZSCM_REG_BASE			0x97000000
+
+#if !defined(__ASSEMBLY__)
+
+#include <linux/cpumask.h>
+#include <asm/r4kcache.h>
+#include <asm/smp-ops.h>
+
+extern struct plat_smp_ops bmips43xx_smp_ops;
+extern struct plat_smp_ops bmips5000_smp_ops;
+
+static inline int register_bmips_smp_ops(void)
+{
+#if IS_ENABLED(CONFIG_CPU_BMIPS) && IS_ENABLED(CONFIG_SMP)
+	switch (current_cpu_type()) {
+	case CPU_BMIPS32:
+	case CPU_BMIPS3300:
+		return register_up_smp_ops();
+	case CPU_BMIPS4350:
+	case CPU_BMIPS4380:
+		register_smp_ops(&bmips43xx_smp_ops);
+		break;
+	case CPU_BMIPS5000:
+		register_smp_ops(&bmips5000_smp_ops);
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	return 0;
+#else
+	return -ENODEV;
+#endif
+}
+
+extern char bmips_reset_nmi_vec;
+extern char bmips_reset_nmi_vec_end;
+extern char bmips_smp_movevec;
+extern char bmips_smp_int_vec;
+extern char bmips_smp_int_vec_end;
+
+extern int bmips_smp_enabled;
+extern int bmips_cpu_offset;
+extern cpumask_t bmips_booted_mask;
+
+extern void bmips_ebase_setup(void);
+extern asmlinkage void plat_wired_tlb_setup(void);
+
+static inline unsigned long bmips_read_zscm_reg(unsigned int offset)
+{
+	unsigned long ret;
+
+	barrier();
+	cache_op(Index_Load_Tag_S, ZSCM_REG_BASE + offset);
+	__sync();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	ret = read_c0_ddatalo();
+	_ssnop();
+
+	return ret;
+}
+
+static inline void bmips_write_zscm_reg(unsigned int offset, unsigned long data)
+{
+	write_c0_ddatalo(data);
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	cache_op(Index_Store_Tag_S, ZSCM_REG_BASE + offset);
+	_ssnop();
+	_ssnop();
+	_ssnop();
+	barrier();
+}
+
+#endif /* !defined(__ASSEMBLY__) */
+
+#endif /* _ASM_BMIPS_H */

arch/mips/include/asm/bootinfo.h

@@ -0,0 +1,150 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1996, 2003 by Ralf Baechle
+ * Copyright (C) 1995, 1996 Andreas Busse
+ * Copyright (C) 1995, 1996 Stoned Elipot
+ * Copyright (C) 1995, 1996 Paul M. Antoine.
+ * Copyright (C) 2009       Zhang Le
+ */
+#ifndef _ASM_BOOTINFO_H
+#define _ASM_BOOTINFO_H
+
+#include <linux/types.h>
+#include <asm/setup.h>
+
+/*
+ * The MACH_ IDs are sort of equivalent to PCI product IDs.  As such the
+ * numbers do not necessarily reflect technical relations or similarities
+ * between systems.
+ */
+
+/*
+ * Valid machtype values for group unknown
+ */
+#define  MACH_UNKNOWN		0	/* whatever...			*/
+
+/*
+ * Valid machtype for group DEC
+ */
+#define  MACH_DSUNKNOWN		0
+#define  MACH_DS23100		1	/* DECstation 2100 or 3100	*/
+#define  MACH_DS5100		2	/* DECsystem 5100		*/
+#define  MACH_DS5000_200	3	/* DECstation 5000/200		*/
+#define  MACH_DS5000_1XX	4	/* DECstation 5000/120, 125, 133, 150 */
+#define  MACH_DS5000_XX		5	/* DECstation 5000/20, 25, 33, 50 */
+#define  MACH_DS5000_2X0	6	/* DECstation 5000/240, 260	*/
+#define  MACH_DS5400		7	/* DECsystem 5400		*/
+#define  MACH_DS5500		8	/* DECsystem 5500		*/
+#define  MACH_DS5800		9	/* DECsystem 5800		*/
+#define  MACH_DS5900		10	/* DECsystem 5900		*/
+
+/*
+ * Valid machtype for group PMC-MSP
+ */
+#define MACH_MSP4200_EVAL	0	/* PMC-Sierra MSP4200 Evaluation */
+#define MACH_MSP4200_GW		1	/* PMC-Sierra MSP4200 Gateway demo */
+#define MACH_MSP4200_FPGA	2	/* PMC-Sierra MSP4200 Emulation */
+#define MACH_MSP7120_EVAL	3	/* PMC-Sierra MSP7120 Evaluation */
+#define MACH_MSP7120_GW		4	/* PMC-Sierra MSP7120 Residential GW */
+#define MACH_MSP7120_FPGA	5	/* PMC-Sierra MSP7120 Emulation */
+#define MACH_MSP_OTHER	      255	/* PMC-Sierra unknown board type */
+
+/*
+ * Valid machtype for group Mikrotik
+ */
+#define MACH_MIKROTIK_RB532	0	/* Mikrotik RouterBoard 532	*/
+#define MACH_MIKROTIK_RB532A	1	/* Mikrotik RouterBoard 532A	*/
+
+/*
+ * Valid machtype for Loongson family
+ */
+enum loongson_machine_type {
+	MACH_LOONGSON_UNKNOWN,
+	MACH_LEMOTE_FL2E,
+	MACH_LEMOTE_FL2F,
+	MACH_LEMOTE_ML2F7,
+	MACH_LEMOTE_YL2F89,
+	MACH_DEXXON_GDIUM2F10,
+	MACH_LEMOTE_NAS,
+	MACH_LEMOTE_LL2F,
+	MACH_LEMOTE_A1004,
+	MACH_LEMOTE_A1101,
+	MACH_LEMOTE_A1201,
+	MACH_LEMOTE_A1205,
+	MACH_LOONGSON_END
+};
+
+/*
+ * Valid machtype for group INGENIC
+ */
+#define  MACH_INGENIC_JZ4730	0	/* JZ4730 SOC		*/
+#define  MACH_INGENIC_JZ4740	1	/* JZ4740 SOC		*/
+
+extern char *system_type;
+const char *get_system_type(void);
+
+extern unsigned long mips_machtype;
+
+#define BOOT_MEM_MAP_MAX	32
+#define BOOT_MEM_RAM		1
+#define BOOT_MEM_ROM_DATA	2
+#define BOOT_MEM_RESERVED	3
+#define BOOT_MEM_INIT_RAM	4
+
+/*
+ * A memory map that's built upon what was determined
+ * or specified on the command line.
+ */
+struct boot_mem_map {
+	int nr_map;
+	struct boot_mem_map_entry {
+		phys_t addr;	/* start of memory segment */
+		phys_t size;	/* size of memory segment */
+		long type;		/* type of memory segment */
+	} map[BOOT_MEM_MAP_MAX];
+};
+
+extern struct boot_mem_map boot_mem_map;
+
+extern void add_memory_region(phys_t start, phys_t size, long type);
+extern void detect_memory_region(phys_t start, phys_t sz_min,  phys_t sz_max);
+
+extern void prom_init(void);
+extern void prom_free_prom_memory(void);
+
+extern void free_init_pages(const char *what,
+			    unsigned long begin, unsigned long end);
+
+extern void (*free_init_pages_eva)(void *begin, void *end);
+
+/*
+ * Initial kernel command line, usually setup by prom_init()
+ */
+extern char arcs_cmdline[COMMAND_LINE_SIZE];
+
+/*
+ * Registers a0, a1, a3 and a4 as passed to the kernel entry by firmware
+ */
+extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;
+
+/*
+ * Platform memory detection hook called by setup_arch
+ */
+extern void plat_mem_setup(void);
+
+#ifdef CONFIG_SWIOTLB
+/*
+ * Optional platform hook to call swiotlb_setup().
+ */
+extern void plat_swiotlb_setup(void);
+
+#else
+
+static inline void plat_swiotlb_setup(void) {}
+
+#endif /* CONFIG_SWIOTLB */
+
+#endif /* _ASM_BOOTINFO_H */

arch/mips/include/asm/branch.h

@@ -0,0 +1,103 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
+ */
+#ifndef _ASM_BRANCH_H
+#define _ASM_BRANCH_H
+
+#include <asm/cpu-features.h>
+#include <asm/mipsregs.h>
+#include <asm/ptrace.h>
+#include <asm/inst.h>
+
+extern int __isa_exception_epc(struct pt_regs *regs);
+extern int __compute_return_epc(struct pt_regs *regs);
+extern int __compute_return_epc_for_insn(struct pt_regs *regs,
+					 union mips_instruction insn);
+extern int __microMIPS_compute_return_epc(struct pt_regs *regs);
+extern int __MIPS16e_compute_return_epc(struct pt_regs *regs);
+
+/*
+ * microMIPS bitfields
+ */
+#define MM_POOL32A_MINOR_MASK	0x3f
+#define MM_POOL32A_MINOR_SHIFT	0x6
+#define MM_MIPS32_COND_FC	0x30
+
+extern int __mm_isBranchInstr(struct pt_regs *regs,
+	struct mm_decoded_insn dec_insn, unsigned long *contpc);
+
+static inline int mm_isBranchInstr(struct pt_regs *regs,
+	struct mm_decoded_insn dec_insn, unsigned long *contpc)
+{
+	if (!cpu_has_mmips)
+		return 0;
+
+	return __mm_isBranchInstr(regs, dec_insn, contpc);
+}
+
+static inline int delay_slot(struct pt_regs *regs)
+{
+	return regs->cp0_cause & CAUSEF_BD;
+}
+
+static inline void clear_delay_slot(struct pt_regs *regs)
+{
+	regs->cp0_cause &= ~CAUSEF_BD;
+}
+
+static inline void set_delay_slot(struct pt_regs *regs)
+{
+	regs->cp0_cause |= CAUSEF_BD;
+}
+
+static inline unsigned long exception_epc(struct pt_regs *regs)
+{
+	if (likely(!delay_slot(regs)))
+		return regs->cp0_epc;
+
+	if (get_isa16_mode(regs->cp0_epc))
+		return __isa_exception_epc(regs);
+
+	return regs->cp0_epc + 4;
+}
+
+#define BRANCH_LIKELY_TAKEN 0x0001
+
+static inline int compute_return_epc(struct pt_regs *regs)
+{
+	if (get_isa16_mode(regs->cp0_epc)) {
+		if (cpu_has_mmips)
+			return __microMIPS_compute_return_epc(regs);
+		if (cpu_has_mips16)
+			return __MIPS16e_compute_return_epc(regs);
+		return regs->cp0_epc;
+	}
+
+	if (!delay_slot(regs)) {
+		regs->cp0_epc += 4;
+		return 0;
+	}
+
+	return __compute_return_epc(regs);
+}
+
+static inline int MIPS16e_compute_return_epc(struct pt_regs *regs,
+					     union mips16e_instruction *inst)
+{
+	if (likely(!delay_slot(regs))) {
+		if (inst->ri.opcode == MIPS16e_extend_op) {
+			regs->cp0_epc += 4;
+			return 0;
+		}
+		regs->cp0_epc += 2;
+		return 0;
+	}
+
+	return __MIPS16e_compute_return_epc(regs);
+}
+
+#endif /* _ASM_BRANCH_H */

arch/mips/include/asm/break.h

@@ -0,0 +1,26 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 2003 by Ralf Baechle
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ */
+#ifndef __ASM_BREAK_H
+#define __ASM_BREAK_H
+
+#ifdef __UAPI_ASM_BREAK_H
+#error "Error: Do not directly include <uapi/asm/break.h>"
+#endif
+#include <uapi/asm/break.h>
+
+/*
+ * Break codes used internally to the kernel.
+ */
+#define BRK_KDB		513	/* Used in KDB_ENTER() */
+#define BRK_MEMU	514	/* Used by FPU emulator */
+#define BRK_KPROBE_BP	515	/* Kprobe break */
+#define BRK_KPROBE_SSTEPBP 516	/* Kprobe single step software implementation */
+#define BRK_MULOVF	1023	/* Multiply overflow */
+
+#endif /* __ASM_BREAK_H */

arch/mips/include/asm/bug.h

@@ -0,0 +1,43 @@
+#ifndef __ASM_BUG_H
+#define __ASM_BUG_H
+
+#include <linux/compiler.h>
+#include <asm/sgidefs.h>
+
+#ifdef CONFIG_BUG
+
+#include <asm/break.h>
+
+static inline void __noreturn BUG(void)
+{
+	__asm__ __volatile__("break %0" : : "i" (BRK_BUG));
+	unreachable();
+}
+
+#define HAVE_ARCH_BUG
+
+#if (_MIPS_ISA > _MIPS_ISA_MIPS1)
+
+static inline void  __BUG_ON(unsigned long condition)
+{
+	if (__builtin_constant_p(condition)) {
+		if (condition)
+			BUG();
+		else
+			return;
+	}
+	__asm__ __volatile__("tne $0, %0, %1"
+			     : : "r" (condition), "i" (BRK_BUG));
+}
+
+#define BUG_ON(C) __BUG_ON((unsigned long)(C))
+
+#define HAVE_ARCH_BUG_ON
+
+#endif /* _MIPS_ISA > _MIPS_ISA_MIPS1 */
+
+#endif
+
+#include <asm-generic/bug.h>
+
+#endif /* __ASM_BUG_H */

arch/mips/include/asm/bugs.h

@@ -0,0 +1,54 @@
+/*
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Copyright (C) 2007  Maciej W. Rozycki
+ *
+ * Needs:
+ *	void check_bugs(void);
+ */
+#ifndef _ASM_BUGS_H
+#define _ASM_BUGS_H
+
+#include <linux/bug.h>
+#include <linux/delay.h>
+#include <linux/smp.h>
+
+#include <asm/cpu.h>
+#include <asm/cpu-info.h>
+
+extern int daddiu_bug;
+
+extern void check_bugs64_early(void);
+
+extern void check_bugs32(void);
+extern void check_bugs64(void);
+
+static inline void check_bugs_early(void)
+{
+#ifdef CONFIG_64BIT
+	check_bugs64_early();
+#endif
+}
+
+static inline void check_bugs(void)
+{
+	unsigned int cpu = smp_processor_id();
+
+	cpu_data[cpu].udelay_val = loops_per_jiffy;
+	check_bugs32();
+#ifdef CONFIG_64BIT
+	check_bugs64();
+#endif
+}
+
+static inline int r4k_daddiu_bug(void)
+{
+#ifdef CONFIG_64BIT
+	WARN_ON(daddiu_bug < 0);
+	return daddiu_bug != 0;
+#else
+	return 0;
+#endif
+}
+
+#endif /* _ASM_BUGS_H */

arch/mips/include/asm/cache.h

@@ -0,0 +1,22 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1997, 98, 99, 2000, 2003 Ralf Baechle
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_CACHE_H
+#define _ASM_CACHE_H
+
+#include <kmalloc.h>
+
+#define L1_CACHE_SHIFT		CONFIG_MIPS_L1_CACHE_SHIFT
+#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
+
+#define SMP_CACHE_SHIFT		L1_CACHE_SHIFT
+#define SMP_CACHE_BYTES		L1_CACHE_BYTES
+
+#define __read_mostly __attribute__((__section__(".data..read_mostly")))
+
+#endif /* _ASM_CACHE_H */

arch/mips/include/asm/cacheflush.h

@@ -0,0 +1,147 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000, 01, 02, 03 by Ralf Baechle
+ * Copyright (C) 1999, 2000, 2001 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_CACHEFLUSH_H
+#define _ASM_CACHEFLUSH_H
+
+/* Keep includes the same across arches.  */
+#include <linux/mm.h>
+#include <asm/cpu-features.h>
+
+/* Cache flushing:
+ *
+ *  - flush_cache_all() flushes entire cache
+ *  - flush_cache_mm(mm) flushes the specified mm context's cache lines
+ *  - flush_cache_dup mm(mm) handles cache flushing when forking
+ *  - flush_cache_page(mm, vmaddr, pfn) flushes a single page
+ *  - flush_cache_range(vma, start, end) flushes a range of pages
+ *  - flush_icache_range(start, end) flush a range of instructions
+ *  - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
+ *
+ * MIPS specific flush operations:
+ *
+ *  - flush_cache_sigtramp() flush signal trampoline
+ *  - flush_icache_all() flush the entire instruction cache
+ *  - flush_data_cache_page() flushes a page from the data cache
+ */
+extern void (*flush_cache_all)(void);
+extern void (*__flush_cache_all)(void);
+extern void (*flush_cache_mm)(struct mm_struct *mm);
+#define flush_cache_dup_mm(mm)	do { (void) (mm); } while (0)
+extern void (*flush_cache_range)(struct vm_area_struct *vma,
+	unsigned long start, unsigned long end);
+extern void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn);
+extern void __flush_dcache_page(struct page *page);
+
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
+static inline void flush_dcache_page(struct page *page)
+{
+	if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc)
+		__flush_dcache_page(page);
+
+}
+
+#define flush_dcache_mmap_lock(mapping)		do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
+
+#define ARCH_HAS_FLUSH_ANON_PAGE
+extern void __flush_anon_page(struct page *, unsigned long);
+static inline void flush_anon_page(struct vm_area_struct *vma,
+	struct page *page, unsigned long vmaddr)
+{
+	if (cpu_has_dc_aliases && PageAnon(page))
+		__flush_anon_page(page, vmaddr);
+}
+
+static inline void flush_icache_page(struct vm_area_struct *vma,
+	struct page *page)
+{
+}
+
+extern void (*flush_icache_range)(unsigned long start, unsigned long end);
+extern void (*local_flush_icache_range)(unsigned long start, unsigned long end);
+
+extern void (*__flush_cache_vmap)(void);
+
+static inline void flush_cache_vmap(unsigned long start, unsigned long end)
+{
+	if (cpu_has_dc_aliases)
+		__flush_cache_vmap();
+}
+
+extern void (*__flush_cache_vunmap)(void);
+
+static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
+{
+	if (cpu_has_dc_aliases)
+		__flush_cache_vunmap();
+}
+
+extern void copy_to_user_page(struct vm_area_struct *vma,
+	struct page *page, unsigned long vaddr, void *dst, const void *src,
+	unsigned long len);
+
+extern void copy_from_user_page(struct vm_area_struct *vma,
+	struct page *page, unsigned long vaddr, void *dst, const void *src,
+	unsigned long len);
+
+extern void (*flush_cache_sigtramp)(unsigned long addr);
+extern void (*flush_icache_all)(void);
+extern void (*local_flush_data_cache_page)(void * addr);
+extern void (*flush_data_cache_page)(unsigned long addr);
+
+/*
+ * This flag is used to indicate that the page pointed to by a pte
+ * is dirty and requires cleaning before returning it to the user.
+ */
+#define PG_dcache_dirty			PG_arch_1
+
+#define Page_dcache_dirty(page)		\
+	test_bit(PG_dcache_dirty, &(page)->flags)
+#define SetPageDcacheDirty(page)	\
+	set_bit(PG_dcache_dirty, &(page)->flags)
+#define ClearPageDcacheDirty(page)	\
+	clear_bit(PG_dcache_dirty, &(page)->flags)
+
+/* Run kernel code uncached, useful for cache probing functions. */
+unsigned long run_uncached(void *func);
+
+extern void *kmap_coherent(struct page *page, unsigned long addr);
+extern void kunmap_coherent(void);
+extern void *kmap_noncoherent(struct page *page, unsigned long addr);
+
+static inline void kunmap_noncoherent(void)
+{
+	kunmap_coherent();
+}
+
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+static inline void flush_kernel_dcache_page(struct page *page)
+{
+	BUG_ON(cpu_has_dc_aliases && PageHighMem(page));
+}
+
+/*
+ * For now flush_kernel_vmap_range and invalidate_kernel_vmap_range both do a
+ * cache writeback and invalidate operation.
+ */
+extern void (*__flush_kernel_vmap_range)(unsigned long vaddr, int size);
+
+static inline void flush_kernel_vmap_range(void *vaddr, int size)
+{
+	if (cpu_has_dc_aliases)
+		__flush_kernel_vmap_range((unsigned long) vaddr, size);
+}
+
+static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+	if (cpu_has_dc_aliases)
+		__flush_kernel_vmap_range((unsigned long) vaddr, size);
+}
+
+#endif /* _ASM_CACHEFLUSH_H */

arch/mips/include/asm/cacheops.h

@@ -0,0 +1,88 @@
+/*
+ * Cache operations for the cache instruction.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * (C) Copyright 1996, 97, 99, 2002, 03 Ralf Baechle
+ * (C) Copyright 1999 Silicon Graphics, Inc.
+ */
+#ifndef __ASM_CACHEOPS_H
+#define __ASM_CACHEOPS_H
+
+/*
+ * Cache Operations available on all MIPS processors with R4000-style caches
+ */
+#define Index_Invalidate_I		0x00
+#define Index_Writeback_Inv_D		0x01
+#define Index_Load_Tag_I		0x04
+#define Index_Load_Tag_D		0x05
+#define Index_Store_Tag_I		0x08
+#define Index_Store_Tag_D		0x09
+#define Hit_Invalidate_I		0x10
+#define Hit_Invalidate_D		0x11
+#define Hit_Writeback_Inv_D		0x15
+
+/*
+ * R4000-specific cacheops
+ */
+#define Create_Dirty_Excl_D		0x0d
+#define Fill				0x14
+#define Hit_Writeback_I			0x18
+#define Hit_Writeback_D			0x19
+
+/*
+ * R4000SC and R4400SC-specific cacheops
+ */
+#define Index_Invalidate_SI		0x02
+#define Index_Writeback_Inv_SD		0x03
+#define Index_Load_Tag_SI		0x06
+#define Index_Load_Tag_SD		0x07
+#define Index_Store_Tag_SI		0x0A
+#define Index_Store_Tag_SD		0x0B
+#define Create_Dirty_Excl_SD		0x0f
+#define Hit_Invalidate_SI		0x12
+#define Hit_Invalidate_SD		0x13
+#define Hit_Writeback_Inv_SD		0x17
+#define Hit_Writeback_SD		0x1b
+#define Hit_Set_Virtual_SI		0x1e
+#define Hit_Set_Virtual_SD		0x1f
+
+/*
+ * R5000-specific cacheops
+ */
+#define R5K_Page_Invalidate_S		0x17
+
+/*
+ * RM7000-specific cacheops
+ */
+#define Page_Invalidate_T		0x16
+#define Index_Store_Tag_T		0x0a
+#define Index_Load_Tag_T		0x06
+
+/*
+ * R10000-specific cacheops
+ *
+ * Cacheops 0x02, 0x06, 0x0a, 0x0c-0x0e, 0x16, 0x1a and 0x1e are unused.
+ * Most of the _S cacheops are identical to the R4000SC _SD cacheops.
+ */
+#define Index_Writeback_Inv_S		0x03
+#define Index_Load_Tag_S		0x07
+#define Index_Store_Tag_S		0x0B
+#define Hit_Invalidate_S		0x13
+#define Cache_Barrier			0x14
+#define Hit_Writeback_Inv_S		0x17
+#define Index_Load_Data_I		0x18
+#define Index_Load_Data_D		0x19
+#define Index_Load_Data_S		0x1b
+#define Index_Store_Data_I		0x1c
+#define Index_Store_Data_D		0x1d
+#define Index_Store_Data_S		0x1f
+
+/*
+ * Loongson2-specific cacheops
+ */
+#define Hit_Invalidate_I_Loongson2	0x00
+
+#endif	/* __ASM_CACHEOPS_H */

arch/mips/include/asm/cevt-r4k.h

@@ -0,0 +1,49 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Kevin D. Kissell
+ */
+
+/*
+ * Definitions used for common event timer implementation
+ * for MIPS 4K-type processors and their MIPS MT variants.
+ * Avoids unsightly extern declarations in C files.
+ */
+#ifndef __ASM_CEVT_R4K_H
+#define __ASM_CEVT_R4K_H
+
+#include <linux/clockchips.h>
+#include <asm/time.h>
+
+DECLARE_PER_CPU(struct clock_event_device, mips_clockevent_device);
+
+void mips_event_handler(struct clock_event_device *dev);
+int c0_compare_int_usable(void);
+void mips_set_clock_mode(enum clock_event_mode, struct clock_event_device *);
+irqreturn_t c0_compare_interrupt(int, void *);
+
+extern struct irqaction c0_compare_irqaction;
+extern int cp0_timer_irq_installed;
+
+/*
+ * Possibly handle a performance counter interrupt.
+ * Return true if the timer interrupt should not be checked
+ */
+
+static inline int handle_perf_irq(int r2)
+{
+	/*
+	 * The performance counter overflow interrupt may be shared with the
+	 * timer interrupt (cp0_perfcount_irq < 0). If it is and a
+	 * performance counter has overflowed (perf_irq() == IRQ_HANDLED)
+	 * and we can't reliably determine if a counter interrupt has also
+	 * happened (!r2) then don't check for a timer interrupt.
+	 */
+	return (cp0_perfcount_irq < 0) &&
+		perf_irq() == IRQ_HANDLED &&
+		!r2;
+}
+
+#endif /* __ASM_CEVT_R4K_H */

arch/mips/include/asm/checksum.h

@@ -0,0 +1,290 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 96, 97, 98, 99, 2001 by Ralf Baechle
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ * Copyright (C) 2001 Thiemo Seufer.
+ * Copyright (C) 2002 Maciej W. Rozycki
+ * Copyright (C) 2014 Imagination Technologies Ltd.
+ */
+#ifndef _ASM_CHECKSUM_H
+#define _ASM_CHECKSUM_H
+
+#include <linux/in6.h>
+
+#include <asm/uaccess.h>
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+__wsum csum_partial(const void *buff, int len, __wsum sum);
+
+__wsum __csum_partial_copy_kernel(const void *src, void *dst,
+				  int len, __wsum sum, int *err_ptr);
+
+__wsum __csum_partial_copy_from_user(const void *src, void *dst,
+				     int len, __wsum sum, int *err_ptr);
+__wsum __csum_partial_copy_to_user(const void *src, void *dst,
+				   int len, __wsum sum, int *err_ptr);
+/*
+ * this is a new version of the above that records errors it finds in *errp,
+ * but continues and zeros the rest of the buffer.
+ */
+static inline
+__wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len,
+				   __wsum sum, int *err_ptr)
+{
+	might_fault();
+	if (segment_eq(get_fs(), get_ds()))
+		return __csum_partial_copy_kernel((__force void *)src, dst,
+						  len, sum, err_ptr);
+	else
+		return __csum_partial_copy_from_user((__force void *)src, dst,
+						     len, sum, err_ptr);
+}
+
+#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
+static inline
+__wsum csum_and_copy_from_user(const void __user *src, void *dst,
+			       int len, __wsum sum, int *err_ptr)
+{
+	if (access_ok(VERIFY_READ, src, len))
+		return csum_partial_copy_from_user(src, dst, len, sum,
+						   err_ptr);
+	if (len)
+		*err_ptr = -EFAULT;
+
+	return sum;
+}
+
+/*
+ * Copy and checksum to user
+ */
+#define HAVE_CSUM_COPY_USER
+static inline
+__wsum csum_and_copy_to_user(const void *src, void __user *dst, int len,
+			     __wsum sum, int *err_ptr)
+{
+	might_fault();
+	if (access_ok(VERIFY_WRITE, dst, len)) {
+		if (segment_eq(get_fs(), get_ds()))
+			return __csum_partial_copy_kernel(src,
+							  (__force void *)dst,
+							  len, sum, err_ptr);
+		else
+			return __csum_partial_copy_to_user(src,
+							   (__force void *)dst,
+							   len, sum, err_ptr);
+	}
+	if (len)
+		*err_ptr = -EFAULT;
+
+	return (__force __wsum)-1; /* invalid checksum */
+}
+
+/*
+ * the same as csum_partial, but copies from user space (but on MIPS
+ * we have just one address space, so this is identical to the above)
+ */
+__wsum csum_partial_copy_nocheck(const void *src, void *dst,
+				       int len, __wsum sum);
+
+/*
+ *	Fold a partial checksum without adding pseudo headers
+ */
+static inline __sum16 csum_fold(__wsum sum)
+{
+	__asm__(
+	"	.set	push		# csum_fold\n"
+	"	.set	noat		\n"
+	"	sll	$1, %0, 16	\n"
+	"	addu	%0, $1		\n"
+	"	sltu	$1, %0, $1	\n"
+	"	srl	%0, %0, 16	\n"
+	"	addu	%0, $1		\n"
+	"	xori	%0, 0xffff	\n"
+	"	.set	pop"
+	: "=r" (sum)
+	: "0" (sum));
+
+	return (__force __sum16)sum;
+}
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ *
+ *	By Jorge Cwik <jorge@laser.satlink.net>, adapted for linux by
+ *	Arnt Gulbrandsen.
+ */
+static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+	const unsigned int *word = iph;
+	const unsigned int *stop = word + ihl;
+	unsigned int csum;
+	int carry;
+
+	csum = word[0];
+	csum += word[1];
+	carry = (csum < word[1]);
+	csum += carry;
+
+	csum += word[2];
+	carry = (csum < word[2]);
+	csum += carry;
+
+	csum += word[3];
+	carry = (csum < word[3]);
+	csum += carry;
+
+	word += 4;
+	do {
+		csum += *word;
+		carry = (csum < *word);
+		csum += carry;
+		word++;
+	} while (word != stop);
+
+	return csum_fold(csum);
+}
+
+static inline __wsum csum_tcpudp_nofold(__be32 saddr,
+	__be32 daddr, unsigned short len, unsigned short proto,
+	__wsum sum)
+{
+	__asm__(
+	"	.set	push		# csum_tcpudp_nofold\n"
+	"	.set	noat		\n"
+#ifdef CONFIG_32BIT
+	"	addu	%0, %2		\n"
+	"	sltu	$1, %0, %2	\n"
+	"	addu	%0, $1		\n"
+
+	"	addu	%0, %3		\n"
+	"	sltu	$1, %0, %3	\n"
+	"	addu	%0, $1		\n"
+
+	"	addu	%0, %4		\n"
+	"	sltu	$1, %0, %4	\n"
+	"	addu	%0, $1		\n"
+#endif
+#ifdef CONFIG_64BIT
+	"	daddu	%0, %2		\n"
+	"	daddu	%0, %3		\n"
+	"	daddu	%0, %4		\n"
+	"	dsll32	$1, %0, 0	\n"
+	"	daddu	%0, $1		\n"
+	"	dsra32	%0, %0, 0	\n"
+#endif
+	"	.set	pop"
+	: "=r" (sum)
+	: "0" ((__force unsigned long)daddr),
+	  "r" ((__force unsigned long)saddr),
+#ifdef __MIPSEL__
+	  "r" ((proto + len) << 8),
+#else
+	  "r" (proto + len),
+#endif
+	  "r" ((__force unsigned long)sum));
+
+	return sum;
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+						   unsigned short len,
+						   unsigned short proto,
+						   __wsum sum)
+{
+	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+static inline __sum16 ip_compute_csum(const void *buff, int len)
+{
+	return csum_fold(csum_partial(buff, len, 0));
+}
+
+#define _HAVE_ARCH_IPV6_CSUM
+static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+					  const struct in6_addr *daddr,
+					  __u32 len, unsigned short proto,
+					  __wsum sum)
+{
+	__asm__(
+	"	.set	push		# csum_ipv6_magic\n"
+	"	.set	noreorder	\n"
+	"	.set	noat		\n"
+	"	addu	%0, %5		# proto (long in network byte order)\n"
+	"	sltu	$1, %0, %5	\n"
+	"	addu	%0, $1		\n"
+
+	"	addu	%0, %6		# csum\n"
+	"	sltu	$1, %0, %6	\n"
+	"	lw	%1, 0(%2)	# four words source address\n"
+	"	addu	%0, $1		\n"
+	"	addu	%0, %1		\n"
+	"	sltu	$1, %0, %1	\n"
+
+	"	lw	%1, 4(%2)	\n"
+	"	addu	%0, $1		\n"
+	"	addu	%0, %1		\n"
+	"	sltu	$1, %0, %1	\n"
+
+	"	lw	%1, 8(%2)	\n"
+	"	addu	%0, $1		\n"
+	"	addu	%0, %1		\n"
+	"	sltu	$1, %0, %1	\n"
+
+	"	lw	%1, 12(%2)	\n"
+	"	addu	%0, $1		\n"
+	"	addu	%0, %1		\n"
+	"	sltu	$1, %0, %1	\n"
+
+	"	lw	%1, 0(%3)	\n"
+	"	addu	%0, $1		\n"
+	"	addu	%0, %1		\n"
+	"	sltu	$1, %0, %1	\n"
+
+	"	lw	%1, 4(%3)	\n"
+	"	addu	%0, $1		\n"
+	"	addu	%0, %1		\n"
+	"	sltu	$1, %0, %1	\n"
+
+	"	lw	%1, 8(%3)	\n"
+	"	addu	%0, $1		\n"
+	"	addu	%0, %1		\n"
+	"	sltu	$1, %0, %1	\n"
+
+	"	lw	%1, 12(%3)	\n"
+	"	addu	%0, $1		\n"
+	"	addu	%0, %1		\n"
+	"	sltu	$1, %0, %1	\n"
+
+	"	addu	%0, $1		# Add final carry\n"
+	"	.set	pop"
+	: "=r" (sum), "=r" (proto)
+	: "r" (saddr), "r" (daddr),
+	  "0" (htonl(len)), "1" (htonl(proto)), "r" (sum));
+
+	return csum_fold(sum);
+}
+
+#endif /* _ASM_CHECKSUM_H */

arch/mips/include/asm/clkdev.h

@@ -0,0 +1,27 @@
+/*
+ *  based on arch/arm/include/asm/clkdev.h
+ *
+ *  Copyright (C) 2008 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Helper for the clk API to assist looking up a struct clk.
+ */
+#ifndef __ASM_CLKDEV_H
+#define __ASM_CLKDEV_H
+
+#include <linux/slab.h>
+
+#ifndef CONFIG_COMMON_CLK
+#define __clk_get(clk)	({ 1; })
+#define __clk_put(clk)	do { } while (0)
+#endif
+
+static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
+{
+	return kzalloc(size, GFP_KERNEL);
+}
+
+#endif

arch/mips/include/asm/clock.h

@@ -0,0 +1,51 @@
+#ifndef __ASM_MIPS_CLOCK_H
+#define __ASM_MIPS_CLOCK_H
+
+#include <linux/kref.h>
+#include <linux/list.h>
+#include <linux/seq_file.h>
+#include <linux/clk.h>
+
+struct clk;
+
+struct clk_ops {
+	void (*init) (struct clk *clk);
+	void (*enable) (struct clk *clk);
+	void (*disable) (struct clk *clk);
+	void (*recalc) (struct clk *clk);
+	int (*set_rate) (struct clk *clk, unsigned long rate, int algo_id);
+	long (*round_rate) (struct clk *clk, unsigned long rate);
+};
+
+struct clk {
+	struct list_head node;
+	const char *name;
+	int id;
+	struct module *owner;
+
+	struct clk *parent;
+	struct clk_ops *ops;
+
+	struct kref kref;
+
+	unsigned long rate;
+	unsigned long flags;
+};
+
+#define CLK_ALWAYS_ENABLED	(1 << 0)
+#define CLK_RATE_PROPAGATES	(1 << 1)
+
+/* Should be defined by processor-specific code */
+void arch_init_clk_ops(struct clk_ops **, int type);
+
+int clk_init(void);
+
+int __clk_enable(struct clk *);
+void __clk_disable(struct clk *);
+
+void clk_recalc_rate(struct clk *);
+
+int clk_register(struct clk *);
+void clk_unregister(struct clk *);
+
+#endif				/* __ASM_MIPS_CLOCK_H */

arch/mips/include/asm/cmp.h

@@ -0,0 +1,17 @@
+#ifndef _ASM_CMP_H
+#define _ASM_CMP_H
+
+/*
+ * Definitions for CMP multitasking on MIPS cores
+ */
+struct task_struct;
+
+extern void cmp_smp_setup(void);
+extern void cmp_smp_finish(void);
+extern void cmp_boot_secondary(int cpu, struct task_struct *t);
+extern void cmp_init_secondary(void);
+extern void cmp_prepare_cpus(unsigned int max_cpus);
+
+/* This is platform specific */
+extern void cmp_send_ipi(int cpu, unsigned int action);
+#endif /*  _ASM_CMP_H */

arch/mips/include/asm/cmpxchg.h

@@ -0,0 +1,246 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 06, 07 by Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef __ASM_CMPXCHG_H
+#define __ASM_CMPXCHG_H
+
+#include <linux/bug.h>
+#include <linux/irqflags.h>
+#include <asm/war.h>
+
+static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
+{
+	__u32 retval;
+
+	smp_mb__before_llsc();
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		unsigned long dummy;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	ll	%0, %3			# xchg_u32	\n"
+		"	.set	mips0					\n"
+		"	move	%2, %z4					\n"
+		"	.set	arch=r4000				\n"
+		"	sc	%2, %1					\n"
+		"	beqzl	%2, 1b					\n"
+		"	.set	mips0					\n"
+		: "=&r" (retval), "=m" (*m), "=&r" (dummy)
+		: "R" (*m), "Jr" (val)
+		: "memory");
+	} else if (kernel_uses_llsc) {
+		unsigned long dummy;
+
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	ll	%0, %3		# xchg_u32	\n"
+			"	.set	mips0				\n"
+			"	move	%2, %z4				\n"
+			"	.set	arch=r4000			\n"
+			"	sc	%2, %1				\n"
+			"	.set	mips0				\n"
+			: "=&r" (retval), "=m" (*m), "=&r" (dummy)
+			: "R" (*m), "Jr" (val)
+			: "memory");
+		} while (unlikely(!dummy));
+	} else {
+		unsigned long flags;
+
+		raw_local_irq_save(flags);
+		retval = *m;
+		*m = val;
+		raw_local_irq_restore(flags);	/* implies memory barrier  */
+	}
+
+	smp_llsc_mb();
+
+	return retval;
+}
+
+#ifdef CONFIG_64BIT
+static inline __u64 __xchg_u64(volatile __u64 * m, __u64 val)
+{
+	__u64 retval;
+
+	smp_mb__before_llsc();
+
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+		unsigned long dummy;
+
+		__asm__ __volatile__(
+		"	.set	arch=r4000				\n"
+		"1:	lld	%0, %3			# xchg_u64	\n"
+		"	move	%2, %z4					\n"
+		"	scd	%2, %1					\n"
+		"	beqzl	%2, 1b					\n"
+		"	.set	mips0					\n"
+		: "=&r" (retval), "=m" (*m), "=&r" (dummy)
+		: "R" (*m), "Jr" (val)
+		: "memory");
+	} else if (kernel_uses_llsc) {
+		unsigned long dummy;
+
+		do {
+			__asm__ __volatile__(
+			"	.set	arch=r4000			\n"
+			"	lld	%0, %3		# xchg_u64	\n"
+			"	move	%2, %z4				\n"
+			"	scd	%2, %1				\n"
+			"	.set	mips0				\n"
+			: "=&r" (retval), "=m" (*m), "=&r" (dummy)
+			: "R" (*m), "Jr" (val)
+			: "memory");
+		} while (unlikely(!dummy));
+	} else {
+		unsigned long flags;
+
+		raw_local_irq_save(flags);
+		retval = *m;
+		*m = val;
+		raw_local_irq_restore(flags);	/* implies memory barrier  */
+	}
+
+	smp_llsc_mb();
+
+	return retval;
+}
+#else
+extern __u64 __xchg_u64_unsupported_on_32bit_kernels(volatile __u64 * m, __u64 val);
+#define __xchg_u64 __xchg_u64_unsupported_on_32bit_kernels
+#endif
+
+static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+{
+	switch (size) {
+	case 4:
+		return __xchg_u32(ptr, x);
+	case 8:
+		return __xchg_u64(ptr, x);
+	}
+
+	return x;
+}
+
+#define xchg(ptr, x)							\
+({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) & ~0xc);				\
+									\
+	((__typeof__(*(ptr)))						\
+		__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))));	\
+})
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+#define __cmpxchg_asm(ld, st, m, old, new)				\
+({									\
+	__typeof(*(m)) __ret;						\
+									\
+	if (kernel_uses_llsc && R10000_LLSC_WAR) {			\
+		__asm__ __volatile__(					\
+		"	.set	push				\n"	\
+		"	.set	noat				\n"	\
+		"	.set	arch=r4000			\n"	\
+		"1:	" ld "	%0, %2		# __cmpxchg_asm \n"	\
+		"	bne	%0, %z3, 2f			\n"	\
+		"	.set	mips0				\n"	\
+		"	move	$1, %z4				\n"	\
+		"	.set	arch=r4000			\n"	\
+		"	" st "	$1, %1				\n"	\
+		"	beqzl	$1, 1b				\n"	\
+		"2:						\n"	\
+		"	.set	pop				\n"	\
+		: "=&r" (__ret), "=R" (*m)				\
+		: "R" (*m), "Jr" (old), "Jr" (new)			\
+		: "memory");						\
+	} else if (kernel_uses_llsc) {					\
+		__asm__ __volatile__(					\
+		"	.set	push				\n"	\
+		"	.set	noat				\n"	\
+		"	.set	arch=r4000			\n"	\
+		"1:	" ld "	%0, %2		# __cmpxchg_asm \n"	\
+		"	bne	%0, %z3, 2f			\n"	\
+		"	.set	mips0				\n"	\
+		"	move	$1, %z4				\n"	\
+		"	.set	arch=r4000			\n"	\
+		"	" st "	$1, %1				\n"	\
+		"	beqz	$1, 1b				\n"	\
+		"	.set	pop				\n"	\
+		"2:						\n"	\
+		: "=&r" (__ret), "=R" (*m)				\
+		: "R" (*m), "Jr" (old), "Jr" (new)			\
+		: "memory");						\
+	} else {							\
+		unsigned long __flags;					\
+									\
+		raw_local_irq_save(__flags);				\
+		__ret = *m;						\
+		if (__ret == old)					\
+			*m = new;					\
+		raw_local_irq_restore(__flags);				\
+	}								\
+									\
+	__ret;								\
+})
+
+/*
+ * This function doesn't exist, so you'll get a linker error
+ * if something tries to do an invalid cmpxchg().
+ */
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+#define __cmpxchg(ptr, old, new, pre_barrier, post_barrier)		\
+({									\
+	__typeof__(ptr) __ptr = (ptr);					\
+	__typeof__(*(ptr)) __old = (old);				\
+	__typeof__(*(ptr)) __new = (new);				\
+	__typeof__(*(ptr)) __res = 0;					\
+									\
+	pre_barrier;							\
+									\
+	switch (sizeof(*(__ptr))) {					\
+	case 4:								\
+		__res = __cmpxchg_asm("ll", "sc", __ptr, __old, __new); \
+		break;							\
+	case 8:								\
+		if (sizeof(long) == 8) {				\
+			__res = __cmpxchg_asm("lld", "scd", __ptr,	\
+					   __old, __new);		\
+			break;						\
+		}							\
+	default:							\
+		__cmpxchg_called_with_bad_pointer();			\
+		break;							\
+	}								\
+									\
+	post_barrier;							\
+									\
+	__res;								\
+})
+
+#define cmpxchg(ptr, old, new)		__cmpxchg(ptr, old, new, smp_mb__before_llsc(), smp_llsc_mb())
+#define cmpxchg_local(ptr, old, new)	__cmpxchg(ptr, old, new, , )
+
+#define cmpxchg64(ptr, o, n)						\
+  ({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
+	cmpxchg((ptr), (o), (n));					\
+  })
+
+#ifdef CONFIG_64BIT
+#define cmpxchg64_local(ptr, o, n)					\
+  ({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
+	cmpxchg_local((ptr), (o), (n));					\
+  })
+#else
+#include <asm-generic/cmpxchg-local.h>
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#endif
+
+#endif /* __ASM_CMPXCHG_H */

arch/mips/include/asm/compat-signal.h

@@ -0,0 +1,57 @@
+#ifndef __ASM_COMPAT_SIGNAL_H
+#define __ASM_COMPAT_SIGNAL_H
+
+#include <linux/bug.h>
+#include <linux/compat.h>
+#include <linux/compiler.h>
+
+#include <asm/signal.h>
+#include <asm/siginfo.h>
+
+#include <asm/uaccess.h>
+
+static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d,
+	const sigset_t *s)
+{
+	int err;
+
+	BUG_ON(sizeof(*d) != sizeof(*s));
+	BUG_ON(_NSIG_WORDS != 2);
+
+	err  = __put_user(s->sig[0],	   &d->sig[0]);
+	err |= __put_user(s->sig[0] >> 32, &d->sig[1]);
+	err |= __put_user(s->sig[1],	   &d->sig[2]);
+	err |= __put_user(s->sig[1] >> 32, &d->sig[3]);
+
+	return err;
+}
+
+static inline int __copy_conv_sigset_from_user(sigset_t *d,
+	const compat_sigset_t __user *s)
+{
+	int err;
+	union sigset_u {
+		sigset_t	s;
+		compat_sigset_t c;
+	} *u = (union sigset_u *) d;
+
+	BUG_ON(sizeof(*d) != sizeof(*s));
+	BUG_ON(_NSIG_WORDS != 2);
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	err  = __get_user(u->c.sig[1], &s->sig[0]);
+	err |= __get_user(u->c.sig[0], &s->sig[1]);
+	err |= __get_user(u->c.sig[3], &s->sig[2]);
+	err |= __get_user(u->c.sig[2], &s->sig[3]);
+#endif
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+	err  = __get_user(u->c.sig[0], &s->sig[0]);
+	err |= __get_user(u->c.sig[1], &s->sig[1]);
+	err |= __get_user(u->c.sig[2], &s->sig[2]);
+	err |= __get_user(u->c.sig[3], &s->sig[3]);
+#endif
+
+	return err;
+}
+
+#endif /* __ASM_COMPAT_SIGNAL_H */

arch/mips/include/asm/compat.h

@@ -0,0 +1,304 @@
+#ifndef _ASM_COMPAT_H
+#define _ASM_COMPAT_H
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/thread_info.h>
+#include <linux/types.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+
+#define COMPAT_USER_HZ		100
+#define COMPAT_UTS_MACHINE	"mips\0\0\0"
+
+typedef u32		compat_size_t;
+typedef s32		compat_ssize_t;
+typedef s32		compat_time_t;
+typedef s32		compat_clock_t;
+typedef s32		compat_suseconds_t;
+
+typedef s32		compat_pid_t;
+typedef s32		__compat_uid_t;
+typedef s32		__compat_gid_t;
+typedef __compat_uid_t	__compat_uid32_t;
+typedef __compat_gid_t	__compat_gid32_t;
+typedef u32		compat_mode_t;
+typedef u32		compat_ino_t;
+typedef u32		compat_dev_t;
+typedef s32		compat_off_t;
+typedef s64		compat_loff_t;
+typedef u32		compat_nlink_t;
+typedef s32		compat_ipc_pid_t;
+typedef s32		compat_daddr_t;
+typedef s32		compat_caddr_t;
+typedef struct {
+	s32	val[2];
+} compat_fsid_t;
+typedef s32		compat_timer_t;
+typedef s32		compat_key_t;
+
+typedef s32		compat_int_t;
+typedef s32		compat_long_t;
+typedef s64		compat_s64;
+typedef u32		compat_uint_t;
+typedef u32		compat_ulong_t;
+typedef u64		compat_u64;
+typedef u32		compat_uptr_t;
+
+struct compat_timespec {
+	compat_time_t	tv_sec;
+	s32		tv_nsec;
+};
+
+struct compat_timeval {
+	compat_time_t	tv_sec;
+	s32		tv_usec;
+};
+
+struct compat_stat {
+	compat_dev_t	st_dev;
+	s32		st_pad1[3];
+	compat_ino_t	st_ino;
+	compat_mode_t	st_mode;
+	compat_nlink_t	st_nlink;
+	__compat_uid_t	st_uid;
+	__compat_gid_t	st_gid;
+	compat_dev_t	st_rdev;
+	s32		st_pad2[2];
+	compat_off_t	st_size;
+	s32		st_pad3;
+	compat_time_t	st_atime;
+	s32		st_atime_nsec;
+	compat_time_t	st_mtime;
+	s32		st_mtime_nsec;
+	compat_time_t	st_ctime;
+	s32		st_ctime_nsec;
+	s32		st_blksize;
+	s32		st_blocks;
+	s32		st_pad4[14];
+};
+
+struct compat_flock {
+	short		l_type;
+	short		l_whence;
+	compat_off_t	l_start;
+	compat_off_t	l_len;
+	s32		l_sysid;
+	compat_pid_t	l_pid;
+	short		__unused;
+	s32		pad[4];
+};
+
+#define F_GETLK64	33
+#define F_SETLK64	34
+#define F_SETLKW64	35
+
+struct compat_flock64 {
+	short		l_type;
+	short		l_whence;
+	compat_loff_t	l_start;
+	compat_loff_t	l_len;
+	compat_pid_t	l_pid;
+};
+
+struct compat_statfs {
+	int		f_type;
+	int		f_bsize;
+	int		f_frsize;
+	int		f_blocks;
+	int		f_bfree;
+	int		f_files;
+	int		f_ffree;
+	int		f_bavail;
+	compat_fsid_t	f_fsid;
+	int		f_namelen;
+	int		f_flags;
+	int		f_spare[5];
+};
+
+#define COMPAT_RLIM_INFINITY	0x7fffffffUL
+
+typedef u32		compat_old_sigset_t;	/* at least 32 bits */
+
+#define _COMPAT_NSIG		128		/* Don't ask !$@#% ...	*/
+#define _COMPAT_NSIG_BPW	32
+
+typedef u32		compat_sigset_word;
+
+typedef union compat_sigval {
+	compat_int_t	sival_int;
+	compat_uptr_t	sival_ptr;
+} compat_sigval_t;
+
+#define SI_PAD_SIZE32	(128/sizeof(int) - 3)
+
+typedef struct compat_siginfo {
+	int si_signo;
+	int si_code;
+	int si_errno;
+
+	union {
+		int _pad[SI_PAD_SIZE32];
+
+		/* kill() */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			__compat_uid_t _uid;	/* sender's uid */
+		} _kill;
+
+		/* SIGCHLD */
+		struct {
+			compat_pid_t _pid;	/* which child */
+			__compat_uid_t _uid;	/* sender's uid */
+			int _status;		/* exit code */
+			compat_clock_t _utime;
+			compat_clock_t _stime;
+		} _sigchld;
+
+		/* IRIX SIGCHLD */
+		struct {
+			compat_pid_t _pid;	/* which child */
+			compat_clock_t _utime;
+			int _status;		/* exit code */
+			compat_clock_t _stime;
+		} _irix_sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			s32 _addr; /* faulting insn/memory ref. */
+		} _sigfault;
+
+		/* SIGPOLL, SIGXFSZ (To do ...)	 */
+		struct {
+			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			int _fd;
+		} _sigpoll;
+
+		/* POSIX.1b timers */
+		struct {
+			timer_t _tid;		/* timer id */
+			int _overrun;		/* overrun count */
+			compat_sigval_t _sigval;/* same as below */
+			int _sys_private;	/* not to be passed to user */
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			compat_pid_t _pid;	/* sender's pid */
+			__compat_uid_t _uid;	/* sender's uid */
+			compat_sigval_t _sigval;
+		} _rt;
+
+	} _sifields;
+} compat_siginfo_t;
+
+#define COMPAT_OFF_T_MAX	0x7fffffff
+#define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
+
+/*
+ * A pointer passed in from user mode. This should not
+ * be used for syscall parameters, just declare them
+ * as pointers because the syscall entry code will have
+ * appropriately converted them already.
+ */
+
+static inline void __user *compat_ptr(compat_uptr_t uptr)
+{
+	/* cast to a __user pointer via "unsigned long" makes sparse happy */
+	return (void __user *)(unsigned long)(long)uptr;
+}
+
+static inline compat_uptr_t ptr_to_compat(void __user *uptr)
+{
+	return (u32)(unsigned long)uptr;
+}
+
+static inline void __user *arch_compat_alloc_user_space(long len)
+{
+	struct pt_regs *regs = (struct pt_regs *)
+		((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
+
+	return (void __user *) (regs->regs[29] - len);
+}
+
+struct compat_ipc64_perm {
+	compat_key_t key;
+	__compat_uid32_t uid;
+	__compat_gid32_t gid;
+	__compat_uid32_t cuid;
+	__compat_gid32_t cgid;
+	compat_mode_t mode;
+	unsigned short seq;
+	unsigned short __pad2;
+	compat_ulong_t __unused1;
+	compat_ulong_t __unused2;
+};
+
+struct compat_semid64_ds {
+	struct compat_ipc64_perm sem_perm;
+	compat_time_t	sem_otime;
+	compat_time_t	sem_ctime;
+	compat_ulong_t	sem_nsems;
+	compat_ulong_t	__unused1;
+	compat_ulong_t	__unused2;
+};
+
+struct compat_msqid64_ds {
+	struct compat_ipc64_perm msg_perm;
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	__unused1;
+#endif
+	compat_time_t	msg_stime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	__unused1;
+#endif
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	__unused2;
+#endif
+	compat_time_t	msg_rtime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	__unused2;
+#endif
+#ifndef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	__unused3;
+#endif
+	compat_time_t	msg_ctime;
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+	compat_ulong_t	__unused3;
+#endif
+	compat_ulong_t	msg_cbytes;
+	compat_ulong_t	msg_qnum;
+	compat_ulong_t	msg_qbytes;
+	compat_pid_t	msg_lspid;
+	compat_pid_t	msg_lrpid;
+	compat_ulong_t	__unused4;
+	compat_ulong_t	__unused5;
+};
+
+struct compat_shmid64_ds {
+	struct compat_ipc64_perm shm_perm;
+	compat_size_t	shm_segsz;
+	compat_time_t	shm_atime;
+	compat_time_t	shm_dtime;
+	compat_time_t	shm_ctime;
+	compat_pid_t	shm_cpid;
+	compat_pid_t	shm_lpid;
+	compat_ulong_t	shm_nattch;
+	compat_ulong_t	__unused1;
+	compat_ulong_t	__unused2;
+};
+
+/* MIPS has unusual order of fields in stack_t */
+typedef struct compat_sigaltstack {
+	compat_uptr_t			ss_sp;
+	compat_size_t			ss_size;
+	int				ss_flags;
+} compat_stack_t;
+#define compat_sigaltstack compat_sigaltstack
+
+static inline int is_compat_task(void)
+{
+	return test_thread_flag(TIF_32BIT_ADDR);
+}
+
+#endif /* _ASM_COMPAT_H */

arch/mips/include/asm/compiler.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2004, 2007  Maciej W. Rozycki
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef _ASM_COMPILER_H
+#define _ASM_COMPILER_H
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
+#define GCC_IMM_ASM() "n"
+#define GCC_REG_ACCUM "$0"
+#else
+#define GCC_IMM_ASM() "rn"
+#define GCC_REG_ACCUM "accum"
+#endif
+
+#endif /* _ASM_COMPILER_H */

arch/mips/include/asm/cop2.h

@@ -0,0 +1,72 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2009 Wind River Systems,
+ *   written by Ralf Baechle <ralf@linux-mips.org>
+ */
+#ifndef __ASM_COP2_H
+#define __ASM_COP2_H
+
+#include <linux/notifier.h>
+
+#if defined(CONFIG_CPU_CAVIUM_OCTEON)
+
+extern void octeon_cop2_save(struct octeon_cop2_state *);
+extern void octeon_cop2_restore(struct octeon_cop2_state *);
+
+#define cop2_save(r)		octeon_cop2_save(&(r)->thread.cp2)
+#define cop2_restore(r)		octeon_cop2_restore(&(r)->thread.cp2)
+
+#define cop2_present		1
+#define cop2_lazy_restore	1
+
+#elif defined(CONFIG_CPU_XLP)
+
+extern void nlm_cop2_save(struct nlm_cop2_state *);
+extern void nlm_cop2_restore(struct nlm_cop2_state *);
+
+#define cop2_save(r)		nlm_cop2_save(&(r)->thread.cp2)
+#define cop2_restore(r)		nlm_cop2_restore(&(r)->thread.cp2)
+
+#define cop2_present		1
+#define cop2_lazy_restore	0
+
+#elif defined(CONFIG_CPU_LOONGSON3)
+
+#define cop2_present		1
+#define cop2_lazy_restore	1
+#define cop2_save(r)		do { (void)(r); } while (0)
+#define cop2_restore(r)		do { (void)(r); } while (0)
+
+#else
+
+#define cop2_present		0
+#define cop2_lazy_restore	0
+#define cop2_save(r)		do { (void)(r); } while (0)
+#define cop2_restore(r)		do { (void)(r); } while (0)
+#endif
+
+enum cu2_ops {
+	CU2_EXCEPTION,
+	CU2_LWC2_OP,
+	CU2_LDC2_OP,
+	CU2_SWC2_OP,
+	CU2_SDC2_OP,
+};
+
+extern int register_cu2_notifier(struct notifier_block *nb);
+extern int cu2_notifier_call_chain(unsigned long val, void *v);
+
+#define cu2_notifier(fn, pri)						\
+({									\
+	static struct notifier_block fn##_nb = {			\
+		.notifier_call = fn,					\
+		.priority = pri						\
+	};								\
+									\
+	register_cu2_notifier(&fn##_nb);				\
+})
+
+#endif /* __ASM_COP2_H */

arch/mips/include/asm/cpu-features.h

@@ -0,0 +1,347 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 2004 Ralf Baechle
+ * Copyright (C) 2004  Maciej W. Rozycki
+ */
+#ifndef __ASM_CPU_FEATURES_H
+#define __ASM_CPU_FEATURES_H
+
+#include <asm/cpu.h>
+#include <asm/cpu-info.h>
+#include <cpu-feature-overrides.h>
+
+/*
+ * SMP assumption: Options of CPU 0 are a superset of all processors.
+ * This is true for all known MIPS systems.
+ */
+#ifndef cpu_has_tlb
+#define cpu_has_tlb		(cpu_data[0].options & MIPS_CPU_TLB)
+#endif
+#ifndef cpu_has_tlbinv
+#define cpu_has_tlbinv		(cpu_data[0].options & MIPS_CPU_TLBINV)
+#endif
+#ifndef cpu_has_segments
+#define cpu_has_segments	(cpu_data[0].options & MIPS_CPU_SEGMENTS)
+#endif
+#ifndef cpu_has_eva
+#define cpu_has_eva		(cpu_data[0].options & MIPS_CPU_EVA)
+#endif
+#ifndef cpu_has_htw
+#define cpu_has_htw		(cpu_data[0].options & MIPS_CPU_HTW)
+#endif
+#ifndef cpu_has_rixiex
+#define cpu_has_rixiex		(cpu_data[0].options & MIPS_CPU_RIXIEX)
+#endif
+#ifndef cpu_has_maar
+#define cpu_has_maar		(cpu_data[0].options & MIPS_CPU_MAAR)
+#endif
+
+/*
+ * For the moment we don't consider R6000 and R8000 so we can assume that
+ * anything that doesn't support R4000-style exceptions and interrupts is
+ * R3000-like.  Users should still treat these two macro definitions as
+ * opaque.
+ */
+#ifndef cpu_has_3kex
+#define cpu_has_3kex		(!cpu_has_4kex)
+#endif
+#ifndef cpu_has_4kex
+#define cpu_has_4kex		(cpu_data[0].options & MIPS_CPU_4KEX)
+#endif
+#ifndef cpu_has_3k_cache
+#define cpu_has_3k_cache	(cpu_data[0].options & MIPS_CPU_3K_CACHE)
+#endif
+#define cpu_has_6k_cache	0
+#define cpu_has_8k_cache	0
+#ifndef cpu_has_4k_cache
+#define cpu_has_4k_cache	(cpu_data[0].options & MIPS_CPU_4K_CACHE)
+#endif
+#ifndef cpu_has_tx39_cache
+#define cpu_has_tx39_cache	(cpu_data[0].options & MIPS_CPU_TX39_CACHE)
+#endif
+#ifndef cpu_has_octeon_cache
+#define cpu_has_octeon_cache	0
+#endif
+#ifndef cpu_has_fpu
+#define cpu_has_fpu		(current_cpu_data.options & MIPS_CPU_FPU)
+#define raw_cpu_has_fpu		(raw_current_cpu_data.options & MIPS_CPU_FPU)
+#else
+#define raw_cpu_has_fpu		cpu_has_fpu
+#endif
+#ifndef cpu_has_32fpr
+#define cpu_has_32fpr		(cpu_data[0].options & MIPS_CPU_32FPR)
+#endif
+#ifndef cpu_has_counter
+#define cpu_has_counter		(cpu_data[0].options & MIPS_CPU_COUNTER)
+#endif
+#ifndef cpu_has_watch
+#define cpu_has_watch		(cpu_data[0].options & MIPS_CPU_WATCH)
+#endif
+#ifndef cpu_has_divec
+#define cpu_has_divec		(cpu_data[0].options & MIPS_CPU_DIVEC)
+#endif
+#ifndef cpu_has_vce
+#define cpu_has_vce		(cpu_data[0].options & MIPS_CPU_VCE)
+#endif
+#ifndef cpu_has_cache_cdex_p
+#define cpu_has_cache_cdex_p	(cpu_data[0].options & MIPS_CPU_CACHE_CDEX_P)
+#endif
+#ifndef cpu_has_cache_cdex_s
+#define cpu_has_cache_cdex_s	(cpu_data[0].options & MIPS_CPU_CACHE_CDEX_S)
+#endif
+#ifndef cpu_has_prefetch
+#define cpu_has_prefetch	(cpu_data[0].options & MIPS_CPU_PREFETCH)
+#endif
+#ifndef cpu_has_mcheck
+#define cpu_has_mcheck		(cpu_data[0].options & MIPS_CPU_MCHECK)
+#endif
+#ifndef cpu_has_ejtag
+#define cpu_has_ejtag		(cpu_data[0].options & MIPS_CPU_EJTAG)
+#endif
+#ifndef cpu_has_llsc
+#define cpu_has_llsc		(cpu_data[0].options & MIPS_CPU_LLSC)
+#endif
+#ifndef kernel_uses_llsc
+#define kernel_uses_llsc	cpu_has_llsc
+#endif
+#ifndef cpu_has_mips16
+#define cpu_has_mips16		(cpu_data[0].ases & MIPS_ASE_MIPS16)
+#endif
+#ifndef cpu_has_mdmx
+#define cpu_has_mdmx		(cpu_data[0].ases & MIPS_ASE_MDMX)
+#endif
+#ifndef cpu_has_mips3d
+#define cpu_has_mips3d		(cpu_data[0].ases & MIPS_ASE_MIPS3D)
+#endif
+#ifndef cpu_has_smartmips
+#define cpu_has_smartmips	(cpu_data[0].ases & MIPS_ASE_SMARTMIPS)
+#endif
+
+#ifndef cpu_has_rixi
+# ifdef CONFIG_64BIT
+# define cpu_has_rixi		(cpu_data[0].options & MIPS_CPU_RIXI)
+# else /* CONFIG_32BIT */
+# define cpu_has_rixi		((cpu_data[0].options & MIPS_CPU_RIXI) && !cpu_has_64bits)
+# endif
+#endif
+
+#ifndef cpu_has_mmips
+# ifdef CONFIG_SYS_SUPPORTS_MICROMIPS
+#  define cpu_has_mmips		(cpu_data[0].options & MIPS_CPU_MICROMIPS)
+# else
+#  define cpu_has_mmips		0
+# endif
+#endif
+
+#ifndef cpu_has_vtag_icache
+#define cpu_has_vtag_icache	(cpu_data[0].icache.flags & MIPS_CACHE_VTAG)
+#endif
+#ifndef cpu_has_dc_aliases
+#define cpu_has_dc_aliases	(cpu_data[0].dcache.flags & MIPS_CACHE_ALIASES)
+#endif
+#ifndef cpu_has_ic_fills_f_dc
+#define cpu_has_ic_fills_f_dc	(cpu_data[0].icache.flags & MIPS_CACHE_IC_F_DC)
+#endif
+#ifndef cpu_has_pindexed_dcache
+#define cpu_has_pindexed_dcache	(cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX)
+#endif
+#ifndef cpu_has_local_ebase
+#define cpu_has_local_ebase	1
+#endif
+
+/*
+ * I-Cache snoops remote store.	 This only matters on SMP.  Some multiprocessors
+ * such as the R10000 have I-Caches that snoop local stores; the embedded ones
+ * don't.  For maintaining I-cache coherency this means we need to flush the
+ * D-cache all the way back to whever the I-cache does refills from, so the
+ * I-cache has a chance to see the new data at all.  Then we have to flush the
+ * I-cache also.
+ * Note we may have been rescheduled and may no longer be running on the CPU
+ * that did the store so we can't optimize this into only doing the flush on
+ * the local CPU.
+ */
+#ifndef cpu_icache_snoops_remote_store
+#ifdef CONFIG_SMP
+#define cpu_icache_snoops_remote_store	(cpu_data[0].icache.flags & MIPS_IC_SNOOPS_REMOTE)
+#else
+#define cpu_icache_snoops_remote_store	1
+#endif
+#endif
+
+#ifndef cpu_has_mips_2
+# define cpu_has_mips_2		(cpu_data[0].isa_level & MIPS_CPU_ISA_II)
+#endif
+#ifndef cpu_has_mips_3
+# define cpu_has_mips_3		(cpu_data[0].isa_level & MIPS_CPU_ISA_III)
+#endif
+#ifndef cpu_has_mips_4
+# define cpu_has_mips_4		(cpu_data[0].isa_level & MIPS_CPU_ISA_IV)
+#endif
+#ifndef cpu_has_mips_5
+# define cpu_has_mips_5		(cpu_data[0].isa_level & MIPS_CPU_ISA_V)
+#endif
+#ifndef cpu_has_mips32r1
+# define cpu_has_mips32r1	(cpu_data[0].isa_level & MIPS_CPU_ISA_M32R1)
+#endif
+#ifndef cpu_has_mips32r2
+# define cpu_has_mips32r2	(cpu_data[0].isa_level & MIPS_CPU_ISA_M32R2)
+#endif
+#ifndef cpu_has_mips64r1
+# define cpu_has_mips64r1	(cpu_data[0].isa_level & MIPS_CPU_ISA_M64R1)
+#endif
+#ifndef cpu_has_mips64r2
+# define cpu_has_mips64r2	(cpu_data[0].isa_level & MIPS_CPU_ISA_M64R2)
+#endif
+
+/*
+ * Shortcuts ...
+ */
+#define cpu_has_mips_2_3_4_5	(cpu_has_mips_2 | cpu_has_mips_3_4_5)
+#define cpu_has_mips_3_4_5	(cpu_has_mips_3 | cpu_has_mips_4_5)
+#define cpu_has_mips_4_5	(cpu_has_mips_4 | cpu_has_mips_5)
+
+#define cpu_has_mips_2_3_4_5_r	(cpu_has_mips_2 | cpu_has_mips_3_4_5_r)
+#define cpu_has_mips_3_4_5_r	(cpu_has_mips_3 | cpu_has_mips_4_5_r)
+#define cpu_has_mips_4_5_r	(cpu_has_mips_4 | cpu_has_mips_5_r)
+#define cpu_has_mips_5_r	(cpu_has_mips_5 | cpu_has_mips_r)
+
+#define cpu_has_mips_4_5_r2	(cpu_has_mips_4_5 | cpu_has_mips_r2)
+
+#define cpu_has_mips32	(cpu_has_mips32r1 | cpu_has_mips32r2)
+#define cpu_has_mips64	(cpu_has_mips64r1 | cpu_has_mips64r2)
+#define cpu_has_mips_r1 (cpu_has_mips32r1 | cpu_has_mips64r1)
+#define cpu_has_mips_r2 (cpu_has_mips32r2 | cpu_has_mips64r2)
+#define cpu_has_mips_r	(cpu_has_mips32r1 | cpu_has_mips32r2 | \
+			 cpu_has_mips64r1 | cpu_has_mips64r2)
+
+#ifndef cpu_has_mips_r2_exec_hazard
+#define cpu_has_mips_r2_exec_hazard cpu_has_mips_r2
+#endif
+
+/*
+ * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other
+ * pre-MIPS32/MIPS64 processors have CLO, CLZ.	The IDT RC64574 is 64-bit and
+ * has CLO and CLZ but not DCLO nor DCLZ.  For 64-bit kernels
+ * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ.
+ */
+#ifndef cpu_has_clo_clz
+#define cpu_has_clo_clz	cpu_has_mips_r
+#endif
+
+/*
+ * MIPS32 R2, MIPS64 R2, Loongson 3A and Octeon have WSBH.
+ * MIPS64 R2, Loongson 3A and Octeon have WSBH, DSBH and DSHD.
+ * This indicates the availability of WSBH and in case of 64 bit CPUs also
+ * DSBH and DSHD.
+ */
+#ifndef cpu_has_wsbh
+#define cpu_has_wsbh		cpu_has_mips_r2
+#endif
+
+#ifndef cpu_has_dsp
+#define cpu_has_dsp		(cpu_data[0].ases & MIPS_ASE_DSP)
+#endif
+
+#ifndef cpu_has_dsp2
+#define cpu_has_dsp2		(cpu_data[0].ases & MIPS_ASE_DSP2P)
+#endif
+
+#ifndef cpu_has_mipsmt
+#define cpu_has_mipsmt		(cpu_data[0].ases & MIPS_ASE_MIPSMT)
+#endif
+
+#ifndef cpu_has_userlocal
+#define cpu_has_userlocal	(cpu_data[0].options & MIPS_CPU_ULRI)
+#endif
+
+#ifdef CONFIG_32BIT
+# ifndef cpu_has_nofpuex
+# define cpu_has_nofpuex	(cpu_data[0].options & MIPS_CPU_NOFPUEX)
+# endif
+# ifndef cpu_has_64bits
+# define cpu_has_64bits		(cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT)
+# endif
+# ifndef cpu_has_64bit_zero_reg
+# define cpu_has_64bit_zero_reg	(cpu_data[0].isa_level & MIPS_CPU_ISA_64BIT)
+# endif
+# ifndef cpu_has_64bit_gp_regs
+# define cpu_has_64bit_gp_regs		0
+# endif
+# ifndef cpu_has_64bit_addresses
+# define cpu_has_64bit_addresses	0
+# endif
+# ifndef cpu_vmbits
+# define cpu_vmbits 31
+# endif
+#endif
+
+#ifdef CONFIG_64BIT
+# ifndef cpu_has_nofpuex
+# define cpu_has_nofpuex		0
+# endif
+# ifndef cpu_has_64bits
+# define cpu_has_64bits			1
+# endif
+# ifndef cpu_has_64bit_zero_reg
+# define cpu_has_64bit_zero_reg		1
+# endif
+# ifndef cpu_has_64bit_gp_regs
+# define cpu_has_64bit_gp_regs		1
+# endif
+# ifndef cpu_has_64bit_addresses
+# define cpu_has_64bit_addresses	1
+# endif
+# ifndef cpu_vmbits
+# define cpu_vmbits cpu_data[0].vmbits
+# define __NEED_VMBITS_PROBE
+# endif
+#endif
+
+#if defined(CONFIG_CPU_MIPSR2_IRQ_VI) && !defined(cpu_has_vint)
+# define cpu_has_vint		(cpu_data[0].options & MIPS_CPU_VINT)
+#elif !defined(cpu_has_vint)
+# define cpu_has_vint			0
+#endif
+
+#if defined(CONFIG_CPU_MIPSR2_IRQ_EI) && !defined(cpu_has_veic)
+# define cpu_has_veic		(cpu_data[0].options & MIPS_CPU_VEIC)
+#elif !defined(cpu_has_veic)
+# define cpu_has_veic			0
+#endif
+
+#ifndef cpu_has_inclusive_pcaches
+#define cpu_has_inclusive_pcaches	(cpu_data[0].options & MIPS_CPU_INCLUSIVE_CACHES)
+#endif
+
+#ifndef cpu_dcache_line_size
+#define cpu_dcache_line_size()	cpu_data[0].dcache.linesz
+#endif
+#ifndef cpu_icache_line_size
+#define cpu_icache_line_size()	cpu_data[0].icache.linesz
+#endif
+#ifndef cpu_scache_line_size
+#define cpu_scache_line_size()	cpu_data[0].scache.linesz
+#endif
+
+#ifndef cpu_hwrena_impl_bits
+#define cpu_hwrena_impl_bits		0
+#endif
+
+#ifndef cpu_has_perf_cntr_intr_bit
+#define cpu_has_perf_cntr_intr_bit	(cpu_data[0].options & MIPS_CPU_PCI)
+#endif
+
+#ifndef cpu_has_vz
+#define cpu_has_vz		(cpu_data[0].ases & MIPS_ASE_VZ)
+#endif
+
+#if defined(CONFIG_CPU_HAS_MSA) && !defined(cpu_has_msa)
+# define cpu_has_msa		(cpu_data[0].ases & MIPS_ASE_MSA)
+#elif !defined(cpu_has_msa)
+# define cpu_has_msa		0
+#endif
+
+#endif /* __ASM_CPU_FEATURES_H */

arch/mips/include/asm/cpu-info.h

@@ -0,0 +1,132 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 Waldorf GMBH
+ * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003 Ralf Baechle
+ * Copyright (C) 1996 Paul M. Antoine
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2004  Maciej W. Rozycki
+ */
+#ifndef __ASM_CPU_INFO_H
+#define __ASM_CPU_INFO_H
+
+#include <linux/types.h>
+
+#include <asm/cache.h>
+
+/*
+ * Descriptor for a cache
+ */
+struct cache_desc {
+	unsigned int waysize;	/* Bytes per way */
+	unsigned short sets;	/* Number of lines per set */
+	unsigned char ways;	/* Number of ways */
+	unsigned char linesz;	/* Size of line in bytes */
+	unsigned char waybit;	/* Bits to select in a cache set */
+	unsigned char flags;	/* Flags describing cache properties */
+};
+
+/*
+ * Flag definitions
+ */
+#define MIPS_CACHE_NOT_PRESENT	0x00000001
+#define MIPS_CACHE_VTAG		0x00000002	/* Virtually tagged cache */
+#define MIPS_CACHE_ALIASES	0x00000004	/* Cache could have aliases */
+#define MIPS_CACHE_IC_F_DC	0x00000008	/* Ic can refill from D-cache */
+#define MIPS_IC_SNOOPS_REMOTE	0x00000010	/* Ic snoops remote stores */
+#define MIPS_CACHE_PINDEX	0x00000020	/* Physically indexed cache */
+
+struct cpuinfo_mips {
+	unsigned long		asid_cache;
+
+	/*
+	 * Capability and feature descriptor structure for MIPS CPU
+	 */
+	unsigned long		ases;
+	unsigned long long	options;
+	unsigned int		udelay_val;
+	unsigned int		processor_id;
+	unsigned int		fpu_id;
+	unsigned int		msa_id;
+	unsigned int		cputype;
+	int			isa_level;
+	int			tlbsize;
+	int			tlbsizevtlb;
+	int			tlbsizeftlbsets;
+	int			tlbsizeftlbways;
+	struct cache_desc	icache; /* Primary I-cache */
+	struct cache_desc	dcache; /* Primary D or combined I/D cache */
+	struct cache_desc	scache; /* Secondary cache */
+	struct cache_desc	tcache; /* Tertiary/split secondary cache */
+	int			srsets; /* Shadow register sets */
+	int			package;/* physical package number */
+	int			core;	/* physical core number */
+#ifdef CONFIG_64BIT
+	int			vmbits; /* Virtual memory size in bits */
+#endif
+#ifdef CONFIG_MIPS_MT_SMP
+	/*
+	 * There is not necessarily a 1:1 mapping of VPE num to CPU number
+	 * in particular on multi-core systems.
+	 */
+	int			vpe_id;	 /* Virtual Processor number */
+#endif
+	void			*data;	/* Additional data */
+	unsigned int		watch_reg_count;   /* Number that exist */
+	unsigned int		watch_reg_use_cnt; /* Usable by ptrace */
+#define NUM_WATCH_REGS 4
+	u16			watch_reg_masks[NUM_WATCH_REGS];
+	unsigned int		kscratch_mask; /* Usable KScratch mask. */
+	/*
+	 * Cache Coherency attribute for write-combine memory writes.
+	 * (shifted by _CACHE_SHIFT)
+	 */
+	unsigned int		writecombine;
+	/*
+	 * Simple counter to prevent enabling HTW in nested
+	 * htw_start/htw_stop calls
+	 */
+	unsigned int		htw_seq;
+} __attribute__((aligned(SMP_CACHE_BYTES)));
+
+extern struct cpuinfo_mips cpu_data[];
+#define current_cpu_data cpu_data[smp_processor_id()]
+#define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
+#define boot_cpu_data cpu_data[0]
+
+extern void cpu_probe(void);
+extern void cpu_report(void);
+
+extern const char *__cpu_name[];
+#define cpu_name_string()	__cpu_name[smp_processor_id()]
+
+struct seq_file;
+struct notifier_block;
+
+extern int register_proc_cpuinfo_notifier(struct notifier_block *nb);
+extern int proc_cpuinfo_notifier_call_chain(unsigned long val, void *v);
+
+#define proc_cpuinfo_notifier(fn, pri)					\
+({									\
+	static struct notifier_block fn##_nb = {			\
+		.notifier_call = fn,					\
+		.priority = pri						\
+	};								\
+									\
+	register_proc_cpuinfo_notifier(&fn##_nb);			\
+})
+
+struct proc_cpuinfo_notifier_args {
+	struct seq_file *m;
+	unsigned long n;
+};
+
+#ifdef CONFIG_MIPS_MT_SMP
+# define cpu_vpe_id(cpuinfo)	((cpuinfo)->vpe_id)
+#else
+# define cpu_vpe_id(cpuinfo)	({ (void)cpuinfo; 0; })
+#endif
+
+#endif /* __ASM_CPU_INFO_H */

arch/mips/include/asm/cpu-type.h

@@ -0,0 +1,216 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 2004 Ralf Baechle
+ * Copyright (C) 2004  Maciej W. Rozycki
+ */
+#ifndef __ASM_CPU_TYPE_H
+#define __ASM_CPU_TYPE_H
+
+#include <linux/smp.h>
+#include <linux/compiler.h>
+
+static inline int __pure __get_cpu_type(const int cpu_type)
+{
+	switch (cpu_type) {
+#if defined(CONFIG_SYS_HAS_CPU_LOONGSON2E) || \
+    defined(CONFIG_SYS_HAS_CPU_LOONGSON2F)
+	case CPU_LOONGSON2:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_LOONGSON3
+	case CPU_LOONGSON3:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_LOONGSON1B
+	case CPU_LOONGSON1:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R1
+	case CPU_4KC:
+	case CPU_ALCHEMY:
+	case CPU_PR4450:
+	case CPU_JZRISC:
+#endif
+
+#if defined(CONFIG_SYS_HAS_CPU_MIPS32_R1) || \
+    defined(CONFIG_SYS_HAS_CPU_MIPS32_R2)
+	case CPU_4KEC:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R2
+	case CPU_4KSC:
+	case CPU_24K:
+	case CPU_34K:
+	case CPU_1004K:
+	case CPU_74K:
+	case CPU_M14KC:
+	case CPU_M14KEC:
+	case CPU_INTERAPTIV:
+	case CPU_PROAPTIV:
+	case CPU_P5600:
+	case CPU_M5150:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R1
+	case CPU_5KC:
+	case CPU_5KE:
+	case CPU_20KC:
+	case CPU_25KF:
+	case CPU_SB1:
+	case CPU_SB1A:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R2
+	/*
+	 * All MIPS64 R2 processors have their own special symbols.  That is,
+	 * there currently is no pure R2 core
+	 */
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R3000
+	case CPU_R2000:
+	case CPU_R3000:
+	case CPU_R3000A:
+	case CPU_R3041:
+	case CPU_R3051:
+	case CPU_R3052:
+	case CPU_R3081:
+	case CPU_R3081E:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_TX39XX
+	case CPU_TX3912:
+	case CPU_TX3922:
+	case CPU_TX3927:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_VR41XX
+	case CPU_VR41XX:
+	case CPU_VR4111:
+	case CPU_VR4121:
+	case CPU_VR4122:
+	case CPU_VR4131:
+	case CPU_VR4133:
+	case CPU_VR4181:
+	case CPU_VR4181A:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R4300
+	case CPU_R4300:
+	case CPU_R4310:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R4X00
+	case CPU_R4000PC:
+	case CPU_R4000SC:
+	case CPU_R4000MC:
+	case CPU_R4200:
+	case CPU_R4400PC:
+	case CPU_R4400SC:
+	case CPU_R4400MC:
+	case CPU_R4600:
+	case CPU_R4700:
+	case CPU_R4640:
+	case CPU_R4650:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_TX49XX
+	case CPU_TX49XX:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R5000
+	case CPU_R5000:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R5432
+	case CPU_R5432:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R5500
+	case CPU_R5500:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R6000
+	case CPU_R6000:
+	case CPU_R6000A:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_NEVADA
+	case CPU_NEVADA:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R8000
+	case CPU_R8000:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_R10000
+	case CPU_R10000:
+	case CPU_R12000:
+	case CPU_R14000:
+#endif
+#ifdef CONFIG_SYS_HAS_CPU_RM7000
+	case CPU_RM7000:
+	case CPU_SR71000:
+#endif
+#ifdef CONFIG_SYS_HAS_CPU_SB1
+	case CPU_SB1:
+	case CPU_SB1A:
+#endif
+#ifdef CONFIG_SYS_HAS_CPU_CAVIUM_OCTEON
+	case CPU_CAVIUM_OCTEON:
+	case CPU_CAVIUM_OCTEON_PLUS:
+	case CPU_CAVIUM_OCTEON2:
+	case CPU_CAVIUM_OCTEON3:
+#endif
+
+#if defined(CONFIG_SYS_HAS_CPU_BMIPS32_3300) || \
+	defined (CONFIG_SYS_HAS_CPU_MIPS32_R1)
+	case CPU_BMIPS32:
+	case CPU_BMIPS3300:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_BMIPS4350
+	case CPU_BMIPS4350:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_BMIPS4380
+	case CPU_BMIPS4380:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_BMIPS5000
+	case CPU_BMIPS5000:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_XLP
+	case CPU_XLP:
+#endif
+
+#ifdef CONFIG_SYS_HAS_CPU_XLR
+	case CPU_XLR:
+#endif
+		break;
+	default:
+		unreachable();
+	}
+
+	return cpu_type;
+}
+
+static inline int __pure current_cpu_type(void)
+{
+	const int cpu_type = current_cpu_data.cputype;
+
+	return __get_cpu_type(cpu_type);
+}
+
+static inline int __pure boot_cpu_type(void)
+{
+	const int cpu_type = cpu_data[0].cputype;
+
+	return __get_cpu_type(cpu_type);
+}
+
+#endif /* __ASM_CPU_TYPE_H */

arch/mips/include/asm/cpu.h

@@ -0,0 +1,385 @@
+/*
+ * cpu.h: Values of the PRId register used to match up
+ *	  various MIPS cpu types.
+ *
+ * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2004, 2013  Maciej W. Rozycki
+ */
+#ifndef _ASM_CPU_H
+#define _ASM_CPU_H
+
+/*
+   As of the MIPS32 and MIPS64 specs from MTI, the PRId register (CP0
+   register 15, select 0) is defined in this (backwards compatible) way:
+
+  +----------------+----------------+----------------+----------------+
+  | Company Options| Company ID	    | Processor ID   | Revision	      |
+  +----------------+----------------+----------------+----------------+
+   31		 24 23		  16 15		    8 7
+
+   I don't have docs for all the previous processors, but my impression is
+   that bits 16-23 have been 0 for all MIPS processors before the MIPS32/64
+   spec.
+*/
+
+#define PRID_OPT_MASK		0xff000000
+
+/*
+ * Assigned Company values for bits 23:16 of the PRId register.
+ */
+
+#define PRID_COMP_MASK		0xff0000
+
+#define PRID_COMP_LEGACY	0x000000
+#define PRID_COMP_MIPS		0x010000
+#define PRID_COMP_BROADCOM	0x020000
+#define PRID_COMP_ALCHEMY	0x030000
+#define PRID_COMP_SIBYTE	0x040000
+#define PRID_COMP_SANDCRAFT	0x050000
+#define PRID_COMP_NXP		0x060000
+#define PRID_COMP_TOSHIBA	0x070000
+#define PRID_COMP_LSI		0x080000
+#define PRID_COMP_LEXRA		0x0b0000
+#define PRID_COMP_NETLOGIC	0x0c0000
+#define PRID_COMP_CAVIUM	0x0d0000
+#define PRID_COMP_INGENIC	0xd00000
+
+/*
+ * Assigned Processor ID (implementation) values for bits 15:8 of the PRId
+ * register.  In order to detect a certain CPU type exactly eventually
+ * additional registers may need to be examined.
+ */
+
+#define PRID_IMP_MASK		0xff00
+
+/*
+ * These are valid when 23:16 == PRID_COMP_LEGACY
+ */
+
+#define PRID_IMP_R2000		0x0100
+#define PRID_IMP_AU1_REV1	0x0100
+#define PRID_IMP_AU1_REV2	0x0200
+#define PRID_IMP_R3000		0x0200		/* Same as R2000A  */
+#define PRID_IMP_R6000		0x0300		/* Same as R3000A  */
+#define PRID_IMP_R4000		0x0400
+#define PRID_IMP_R6000A		0x0600
+#define PRID_IMP_R10000		0x0900
+#define PRID_IMP_R4300		0x0b00
+#define PRID_IMP_VR41XX		0x0c00
+#define PRID_IMP_R12000		0x0e00
+#define PRID_IMP_R14000		0x0f00
+#define PRID_IMP_R8000		0x1000
+#define PRID_IMP_PR4450		0x1200
+#define PRID_IMP_R4600		0x2000
+#define PRID_IMP_R4700		0x2100
+#define PRID_IMP_TX39		0x2200
+#define PRID_IMP_R4640		0x2200
+#define PRID_IMP_R4650		0x2200		/* Same as R4640 */
+#define PRID_IMP_R5000		0x2300
+#define PRID_IMP_TX49		0x2d00
+#define PRID_IMP_SONIC		0x2400
+#define PRID_IMP_MAGIC		0x2500
+#define PRID_IMP_RM7000		0x2700
+#define PRID_IMP_NEVADA		0x2800		/* RM5260 ??? */
+#define PRID_IMP_RM9000		0x3400
+#define PRID_IMP_LOONGSON_32	0x4200  /* Loongson-1 */
+#define PRID_IMP_R5432		0x5400
+#define PRID_IMP_R5500		0x5500
+#define PRID_IMP_LOONGSON_64	0x6300  /* Loongson-2/3 */
+
+#define PRID_IMP_UNKNOWN	0xff00
+
+/*
+ * These are the PRID's for when 23:16 == PRID_COMP_MIPS
+ */
+
+#define PRID_IMP_4KC		0x8000
+#define PRID_IMP_5KC		0x8100
+#define PRID_IMP_20KC		0x8200
+#define PRID_IMP_4KEC		0x8400
+#define PRID_IMP_4KSC		0x8600
+#define PRID_IMP_25KF		0x8800
+#define PRID_IMP_5KE		0x8900
+#define PRID_IMP_4KECR2		0x9000
+#define PRID_IMP_4KEMPR2	0x9100
+#define PRID_IMP_4KSD		0x9200
+#define PRID_IMP_24K		0x9300
+#define PRID_IMP_34K		0x9500
+#define PRID_IMP_24KE		0x9600
+#define PRID_IMP_74K		0x9700
+#define PRID_IMP_1004K		0x9900
+#define PRID_IMP_1074K		0x9a00
+#define PRID_IMP_M14KC		0x9c00
+#define PRID_IMP_M14KEC		0x9e00
+#define PRID_IMP_INTERAPTIV_UP	0xa000
+#define PRID_IMP_INTERAPTIV_MP	0xa100
+#define PRID_IMP_PROAPTIV_UP	0xa200
+#define PRID_IMP_PROAPTIV_MP	0xa300
+#define PRID_IMP_M5150		0xa700
+#define PRID_IMP_P5600		0xa800
+
+/*
+ * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
+ */
+
+#define PRID_IMP_SB1		0x0100
+#define PRID_IMP_SB1A		0x1100
+
+/*
+ * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT
+ */
+
+#define PRID_IMP_SR71000	0x0400
+
+/*
+ * These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
+ */
+
+#define PRID_IMP_BMIPS32_REV4	0x4000
+#define PRID_IMP_BMIPS32_REV8	0x8000
+#define PRID_IMP_BMIPS3300	0x9000
+#define PRID_IMP_BMIPS3300_ALT	0x9100
+#define PRID_IMP_BMIPS3300_BUG	0x0000
+#define PRID_IMP_BMIPS43XX	0xa000
+#define PRID_IMP_BMIPS5000	0x5a00
+
+#define PRID_REV_BMIPS4380_LO	0x0040
+#define PRID_REV_BMIPS4380_HI	0x006f
+
+/*
+ * These are the PRID's for when 23:16 == PRID_COMP_CAVIUM
+ */
+
+#define PRID_IMP_CAVIUM_CN38XX 0x0000
+#define PRID_IMP_CAVIUM_CN31XX 0x0100
+#define PRID_IMP_CAVIUM_CN30XX 0x0200
+#define PRID_IMP_CAVIUM_CN58XX 0x0300
+#define PRID_IMP_CAVIUM_CN56XX 0x0400
+#define PRID_IMP_CAVIUM_CN50XX 0x0600
+#define PRID_IMP_CAVIUM_CN52XX 0x0700
+#define PRID_IMP_CAVIUM_CN63XX 0x9000
+#define PRID_IMP_CAVIUM_CN68XX 0x9100
+#define PRID_IMP_CAVIUM_CN66XX 0x9200
+#define PRID_IMP_CAVIUM_CN61XX 0x9300
+#define PRID_IMP_CAVIUM_CNF71XX 0x9400
+#define PRID_IMP_CAVIUM_CN78XX 0x9500
+#define PRID_IMP_CAVIUM_CN70XX 0x9600
+
+/*
+ * These are the PRID's for when 23:16 == PRID_COMP_INGENIC
+ */
+
+#define PRID_IMP_JZRISC	       0x0200
+
+/*
+ * These are the PRID's for when 23:16 == PRID_COMP_NETLOGIC
+ */
+#define PRID_IMP_NETLOGIC_XLR732	0x0000
+#define PRID_IMP_NETLOGIC_XLR716	0x0200
+#define PRID_IMP_NETLOGIC_XLR532	0x0900
+#define PRID_IMP_NETLOGIC_XLR308	0x0600
+#define PRID_IMP_NETLOGIC_XLR532C	0x0800
+#define PRID_IMP_NETLOGIC_XLR516C	0x0a00
+#define PRID_IMP_NETLOGIC_XLR508C	0x0b00
+#define PRID_IMP_NETLOGIC_XLR308C	0x0f00
+#define PRID_IMP_NETLOGIC_XLS608	0x8000
+#define PRID_IMP_NETLOGIC_XLS408	0x8800
+#define PRID_IMP_NETLOGIC_XLS404	0x8c00
+#define PRID_IMP_NETLOGIC_XLS208	0x8e00
+#define PRID_IMP_NETLOGIC_XLS204	0x8f00
+#define PRID_IMP_NETLOGIC_XLS108	0xce00
+#define PRID_IMP_NETLOGIC_XLS104	0xcf00
+#define PRID_IMP_NETLOGIC_XLS616B	0x4000
+#define PRID_IMP_NETLOGIC_XLS608B	0x4a00
+#define PRID_IMP_NETLOGIC_XLS416B	0x4400
+#define PRID_IMP_NETLOGIC_XLS412B	0x4c00
+#define PRID_IMP_NETLOGIC_XLS408B	0x4e00
+#define PRID_IMP_NETLOGIC_XLS404B	0x4f00
+#define PRID_IMP_NETLOGIC_AU13XX	0x8000
+
+#define PRID_IMP_NETLOGIC_XLP8XX	0x1000
+#define PRID_IMP_NETLOGIC_XLP3XX	0x1100
+#define PRID_IMP_NETLOGIC_XLP2XX	0x1200
+#define PRID_IMP_NETLOGIC_XLP9XX	0x1500
+#define PRID_IMP_NETLOGIC_XLP5XX	0x1300
+
+/*
+ * Particular Revision values for bits 7:0 of the PRId register.
+ */
+
+#define PRID_REV_MASK		0x00ff
+
+/*
+ * Definitions for 7:0 on legacy processors
+ */
+
+#define PRID_REV_TX4927		0x0022
+#define PRID_REV_TX4937		0x0030
+#define PRID_REV_R4400		0x0040
+#define PRID_REV_R3000A		0x0030
+#define PRID_REV_R3000		0x0020
+#define PRID_REV_R2000A		0x0010
+#define PRID_REV_TX3912		0x0010
+#define PRID_REV_TX3922		0x0030
+#define PRID_REV_TX3927		0x0040
+#define PRID_REV_VR4111		0x0050
+#define PRID_REV_VR4181		0x0050	/* Same as VR4111 */
+#define PRID_REV_VR4121		0x0060
+#define PRID_REV_VR4122		0x0070
+#define PRID_REV_VR4181A	0x0070	/* Same as VR4122 */
+#define PRID_REV_VR4130		0x0080
+#define PRID_REV_34K_V1_0_2	0x0022
+#define PRID_REV_LOONGSON1B	0x0020
+#define PRID_REV_LOONGSON2E	0x0002
+#define PRID_REV_LOONGSON2F	0x0003
+#define PRID_REV_LOONGSON3A	0x0005
+#define PRID_REV_LOONGSON3B_R1	0x0006
+#define PRID_REV_LOONGSON3B_R2	0x0007
+
+/*
+ * Older processors used to encode processor version and revision in two
+ * 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores
+ * have switched to use the 8-bits as 3:3:2 bitfield with the last field as
+ * the patch number.  *ARGH*
+ */
+#define PRID_REV_ENCODE_44(ver, rev)					\
+	((ver) << 4 | (rev))
+#define PRID_REV_ENCODE_332(ver, rev, patch)				\
+	((ver) << 5 | (rev) << 2 | (patch))
+
+/*
+ * FPU implementation/revision register (CP1 control register 0).
+ *
+ * +---------------------------------+----------------+----------------+
+ * | 0				     | Implementation | Revision       |
+ * +---------------------------------+----------------+----------------+
+ *  31				   16 15	     8 7	      0
+ */
+
+#define FPIR_IMP_MASK		0xff00
+
+#define FPIR_IMP_NONE		0x0000
+
+#if !defined(__ASSEMBLY__)
+
+enum cpu_type_enum {
+	CPU_UNKNOWN,
+
+	/*
+	 * R2000 class processors
+	 */
+	CPU_R2000, CPU_R3000, CPU_R3000A, CPU_R3041, CPU_R3051, CPU_R3052,
+	CPU_R3081, CPU_R3081E,
+
+	/*
+	 * R6000 class processors
+	 */
+	CPU_R6000, CPU_R6000A,
+
+	/*
+	 * R4000 class processors
+	 */
+	CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
+	CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
+	CPU_R4700, CPU_R5000, CPU_R5500, CPU_NEVADA, CPU_R5432, CPU_R10000,
+	CPU_R12000, CPU_R14000, CPU_VR41XX, CPU_VR4111, CPU_VR4121, CPU_VR4122,
+	CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
+	CPU_SR71000, CPU_TX49XX,
+
+	/*
+	 * R8000 class processors
+	 */
+	CPU_R8000,
+
+	/*
+	 * TX3900 class processors
+	 */
+	CPU_TX3912, CPU_TX3922, CPU_TX3927,
+
+	/*
+	 * MIPS32 class processors
+	 */
+	CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
+	CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
+	CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
+	CPU_M14KEC, CPU_INTERAPTIV, CPU_P5600, CPU_PROAPTIV, CPU_1074K, CPU_M5150,
+
+	/*
+	 * MIPS64 class processors
+	 */
+	CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
+	CPU_LOONGSON3, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
+	CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP,
+
+	CPU_LAST
+};
+
+#endif /* !__ASSEMBLY */
+
+/*
+ * ISA Level encodings
+ *
+ */
+#define MIPS_CPU_ISA_II		0x00000001
+#define MIPS_CPU_ISA_III	0x00000002
+#define MIPS_CPU_ISA_IV		0x00000004
+#define MIPS_CPU_ISA_V		0x00000008
+#define MIPS_CPU_ISA_M32R1	0x00000010
+#define MIPS_CPU_ISA_M32R2	0x00000020
+#define MIPS_CPU_ISA_M64R1	0x00000040
+#define MIPS_CPU_ISA_M64R2	0x00000080
+
+#define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_II | MIPS_CPU_ISA_M32R1 | \
+	MIPS_CPU_ISA_M32R2)
+#define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
+	MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)
+
+/*
+ * CPU Option encodings
+ */
+#define MIPS_CPU_TLB		0x00000001ull /* CPU has TLB */
+#define MIPS_CPU_4KEX		0x00000002ull /* "R4K" exception model */
+#define MIPS_CPU_3K_CACHE	0x00000004ull /* R3000-style caches */
+#define MIPS_CPU_4K_CACHE	0x00000008ull /* R4000-style caches */
+#define MIPS_CPU_TX39_CACHE	0x00000010ull /* TX3900-style caches */
+#define MIPS_CPU_FPU		0x00000020ull /* CPU has FPU */
+#define MIPS_CPU_32FPR		0x00000040ull /* 32 dbl. prec. FP registers */
+#define MIPS_CPU_COUNTER	0x00000080ull /* Cycle count/compare */
+#define MIPS_CPU_WATCH		0x00000100ull /* watchpoint registers */
+#define MIPS_CPU_DIVEC		0x00000200ull /* dedicated interrupt vector */
+#define MIPS_CPU_VCE		0x00000400ull /* virt. coherence conflict possible */
+#define MIPS_CPU_CACHE_CDEX_P	0x00000800ull /* Create_Dirty_Exclusive CACHE op */
+#define MIPS_CPU_CACHE_CDEX_S	0x00001000ull /* ... same for seconary cache ... */
+#define MIPS_CPU_MCHECK		0x00002000ull /* Machine check exception */
+#define MIPS_CPU_EJTAG		0x00004000ull /* EJTAG exception */
+#define MIPS_CPU_NOFPUEX	0x00008000ull /* no FPU exception */
+#define MIPS_CPU_LLSC		0x00010000ull /* CPU has ll/sc instructions */
+#define MIPS_CPU_INCLUSIVE_CACHES	0x00020000ull /* P-cache subset enforced */
+#define MIPS_CPU_PREFETCH	0x00040000ull /* CPU has usable prefetch */
+#define MIPS_CPU_VINT		0x00080000ull /* CPU supports MIPSR2 vectored interrupts */
+#define MIPS_CPU_VEIC		0x00100000ull /* CPU supports MIPSR2 external interrupt controller mode */
+#define MIPS_CPU_ULRI		0x00200000ull /* CPU has ULRI feature */
+#define MIPS_CPU_PCI		0x00400000ull /* CPU has Perf Ctr Int indicator */
+#define MIPS_CPU_RIXI		0x00800000ull /* CPU has TLB Read/eXec Inhibit */
+#define MIPS_CPU_MICROMIPS	0x01000000ull /* CPU has microMIPS capability */
+#define MIPS_CPU_TLBINV		0x02000000ull /* CPU supports TLBINV/F */
+#define MIPS_CPU_SEGMENTS	0x04000000ull /* CPU supports Segmentation Control registers */
+#define MIPS_CPU_EVA		0x80000000ull /* CPU supports Enhanced Virtual Addressing */
+#define MIPS_CPU_HTW		0x100000000ull /* CPU support Hardware Page Table Walker */
+#define MIPS_CPU_RIXIEX		0x200000000ull /* CPU has unique exception codes for {Read, Execute}-Inhibit exceptions */
+#define MIPS_CPU_MAAR		0x400000000ull /* MAAR(I) registers are present */
+
+/*
+ * CPU ASE encodings
+ */
+#define MIPS_ASE_MIPS16		0x00000001 /* code compression */
+#define MIPS_ASE_MDMX		0x00000002 /* MIPS digital media extension */
+#define MIPS_ASE_MIPS3D		0x00000004 /* MIPS-3D */
+#define MIPS_ASE_SMARTMIPS	0x00000008 /* SmartMIPS */
+#define MIPS_ASE_DSP		0x00000010 /* Signal Processing ASE */
+#define MIPS_ASE_MIPSMT		0x00000020 /* CPU supports MIPS MT */
+#define MIPS_ASE_DSP2P		0x00000040 /* Signal Processing ASE Rev 2 */
+#define MIPS_ASE_VZ		0x00000080 /* Virtualization ASE */
+#define MIPS_ASE_MSA		0x00000100 /* MIPS SIMD Architecture */
+
+#endif /* _ASM_CPU_H */

arch/mips/include/asm/debug.h

@@ -0,0 +1,48 @@
+/*
+ * Debug macros for run-time debugging.
+ * Turned on/off with CONFIG_RUNTIME_DEBUG option.
+ *
+ * Copyright (C) 2001 MontaVista Software Inc.
+ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#ifndef _ASM_DEBUG_H
+#define _ASM_DEBUG_H
+
+
+/*
+ * run-time macros for catching spurious errors.  Eable CONFIG_RUNTIME_DEBUG in
+ * kernel hacking config menu to use them.
+ *
+ * Use them as run-time debugging aid.  NEVER USE THEM AS ERROR HANDLING CODE!!!
+ */
+
+#ifdef CONFIG_RUNTIME_DEBUG
+
+#include <linux/kernel.h>
+
+#define db_assert(x)  if (!(x)) { \
+	panic("assertion failed at %s:%d: %s", __FILE__, __LINE__, #x); }
+#define db_warn(x)  if (!(x)) { \
+	printk(KERN_WARNING "warning at %s:%d: %s", __FILE__, __LINE__, #x); }
+#define db_verify(x, y) db_assert(x y)
+#define db_verify_warn(x, y) db_warn(x y)
+#define db_run(x)  do { x; } while (0)
+
+#else
+
+#define db_assert(x)
+#define db_warn(x)
+#define db_verify(x, y) x
+#define db_verify_warn(x, y) x
+#define db_run(x)
+
+#endif
+
+#endif /* _ASM_DEBUG_H */

arch/mips/include/asm/dec/ecc.h

@@ -0,0 +1,55 @@
+/*
+ *	include/asm-mips/dec/ecc.h
+ *
+ *	ECC handling logic definitions common to DECstation/DECsystem
+ *	5000/200 (KN02), 5000/240 (KN03), 5000/260 (KN05) and
+ *	DECsystem 5900 (KN03), 5900/260 (KN05) systems.
+ *
+ *	Copyright (C) 2003  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+#ifndef __ASM_MIPS_DEC_ECC_H
+#define __ASM_MIPS_DEC_ECC_H
+
+/*
+ * Error Address Register bits.
+ * The register is r/wc -- any write clears it.
+ */
+#define KN0X_EAR_VALID		(1<<31)		/* error data valid, bus IRQ */
+#define KN0X_EAR_CPU		(1<<30)		/* CPU/DMA transaction */
+#define KN0X_EAR_WRITE		(1<<29)		/* write/read transaction */
+#define KN0X_EAR_ECCERR		(1<<28)		/* ECC/timeout or overrun */
+#define KN0X_EAR_RES_27		(1<<27)		/* unused */
+#define KN0X_EAR_ADDRESS	(0x7ffffff<<0)	/* address involved */
+
+/*
+ * Error Syndrome Register bits.
+ * The register is frozen when EAR.VALID is set, otherwise it records bits
+ * from the last memory read.  The register is r/wc -- any write clears it.
+ */
+#define KN0X_ESR_VLDHI		(1<<31)		/* error data valid hi word */
+#define KN0X_ESR_CHKHI		(0x7f<<24)	/* check bits read from mem */
+#define KN0X_ESR_SNGHI		(1<<23)		/* single/double bit error */
+#define KN0X_ESR_SYNHI		(0x7f<<16)	/* syndrome from ECC logic */
+#define KN0X_ESR_VLDLO		(1<<15)		/* error data valid lo word */
+#define KN0X_ESR_CHKLO		(0x7f<<8)	/* check bits read from mem */
+#define KN0X_ESR_SNGLO		(1<<7)		/* single/double bit error */
+#define KN0X_ESR_SYNLO		(0x7f<<0)	/* syndrome from ECC logic */
+
+
+#ifndef __ASSEMBLY__
+
+#include <linux/interrupt.h>
+
+struct pt_regs;
+
+extern void dec_ecc_be_init(void);
+extern int dec_ecc_be_handler(struct pt_regs *regs, int is_fixup);
+extern irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id);
+#endif
+
+#endif /* __ASM_MIPS_DEC_ECC_H */

arch/mips/include/asm/dec/interrupts.h

@@ -0,0 +1,126 @@
+/*
+ * Miscellaneous definitions used to initialise the interrupt vector table
+ * with the machine-specific interrupt routines.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1997 by Paul M. Antoine.
+ * reworked 1998 by Harald Koerfgen.
+ * Copyright (C) 2001, 2002, 2003  Maciej W. Rozycki
+ */
+
+#ifndef __ASM_DEC_INTERRUPTS_H
+#define __ASM_DEC_INTERRUPTS_H
+
+#include <irq.h>
+#include <asm/mipsregs.h>
+
+
+/*
+ * The list of possible system devices which provide an
+ * interrupt.  Not all devices exist on a given system.
+ */
+#define DEC_IRQ_CASCADE		0	/* cascade from CSR or I/O ASIC */
+
+/* Ordinary interrupts */
+#define DEC_IRQ_AB_RECV		1	/* ACCESS.bus receive */
+#define DEC_IRQ_AB_XMIT		2	/* ACCESS.bus transmit */
+#define DEC_IRQ_DZ11		3	/* DZ11 (DC7085) serial */
+#define DEC_IRQ_ASC		4	/* ASC (NCR53C94) SCSI */
+#define DEC_IRQ_FLOPPY		5	/* 82077 FDC */
+#define DEC_IRQ_FPU		6	/* R3k FPU */
+#define DEC_IRQ_HALT		7	/* HALT button or from ACCESS.Bus */
+#define DEC_IRQ_ISDN		8	/* Am79C30A ISDN */
+#define DEC_IRQ_LANCE		9	/* LANCE (Am7990) Ethernet */
+#define DEC_IRQ_BUS		10	/* memory, I/O bus read/write errors */
+#define DEC_IRQ_PSU		11	/* power supply unit warning */
+#define DEC_IRQ_RTC		12	/* DS1287 RTC */
+#define DEC_IRQ_SCC0		13	/* SCC (Z85C30) serial #0 */
+#define DEC_IRQ_SCC1		14	/* SCC (Z85C30) serial #1 */
+#define DEC_IRQ_SII		15	/* SII (DC7061) SCSI */
+#define DEC_IRQ_TC0		16	/* TURBOchannel slot #0 */
+#define DEC_IRQ_TC1		17	/* TURBOchannel slot #1 */
+#define DEC_IRQ_TC2		18	/* TURBOchannel slot #2 */
+#define DEC_IRQ_TIMER		19	/* ARC periodic timer */
+#define DEC_IRQ_VIDEO		20	/* framebuffer */
+
+/* I/O ASIC DMA interrupts */
+#define DEC_IRQ_ASC_MERR	21	/* ASC memory read error */
+#define DEC_IRQ_ASC_ERR		22	/* ASC page overrun */
+#define DEC_IRQ_ASC_DMA		23	/* ASC buffer pointer loaded */
+#define DEC_IRQ_FLOPPY_ERR	24	/* FDC error */
+#define DEC_IRQ_ISDN_ERR	25	/* ISDN memory read/overrun error */
+#define DEC_IRQ_ISDN_RXDMA	26	/* ISDN recv buffer pointer loaded */
+#define DEC_IRQ_ISDN_TXDMA	27	/* ISDN xmit buffer pointer loaded */
+#define DEC_IRQ_LANCE_MERR	28	/* LANCE memory read error */
+#define DEC_IRQ_SCC0A_RXERR	29	/* SCC0A (printer) receive overrun */
+#define DEC_IRQ_SCC0A_RXDMA	30	/* SCC0A receive half page */
+#define DEC_IRQ_SCC0A_TXERR	31	/* SCC0A xmit memory read/overrun */
+#define DEC_IRQ_SCC0A_TXDMA	32	/* SCC0A transmit page end */
+#define DEC_IRQ_AB_RXERR	33	/* ACCESS.bus receive overrun */
+#define DEC_IRQ_AB_RXDMA	34	/* ACCESS.bus receive half page */
+#define DEC_IRQ_AB_TXERR	35	/* ACCESS.bus xmit memory read/ovrn */
+#define DEC_IRQ_AB_TXDMA	36	/* ACCESS.bus transmit page end */
+#define DEC_IRQ_SCC1A_RXERR	37	/* SCC1A (modem) receive overrun */
+#define DEC_IRQ_SCC1A_RXDMA	38	/* SCC1A receive half page */
+#define DEC_IRQ_SCC1A_TXERR	39	/* SCC1A xmit memory read/overrun */
+#define DEC_IRQ_SCC1A_TXDMA	40	/* SCC1A transmit page end */
+
+/* TC5 & TC6 are virtual slots for KN02's onboard devices */
+#define DEC_IRQ_TC5		DEC_IRQ_ASC	/* virtual PMAZ-AA */
+#define DEC_IRQ_TC6		DEC_IRQ_LANCE	/* virtual PMAD-AA */
+
+#define DEC_NR_INTS		41
+
+
+/* Largest of cpu mask_nr tables. */
+#define DEC_MAX_CPU_INTS	6
+/* Largest of asic mask_nr tables. */
+#define DEC_MAX_ASIC_INTS	9
+
+
+/*
+ * CPU interrupt bits common to all systems.
+ */
+#define DEC_CPU_INR_FPU		7	/* R3k FPU */
+#define DEC_CPU_INR_SW1		1	/* software #1 */
+#define DEC_CPU_INR_SW0		0	/* software #0 */
+
+#define DEC_CPU_IRQ_BASE	MIPS_CPU_IRQ_BASE	/* first IRQ assigned to CPU */
+
+#define DEC_CPU_IRQ_NR(n)	((n) + DEC_CPU_IRQ_BASE)
+#define DEC_CPU_IRQ_MASK(n)	(1 << ((n) + CAUSEB_IP))
+#define DEC_CPU_IRQ_ALL		(0xff << CAUSEB_IP)
+
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Interrupt table structures to hide differences between systems.
+ */
+typedef union { int i; void *p; } int_ptr;
+extern int dec_interrupt[DEC_NR_INTS];
+extern int_ptr cpu_mask_nr_tbl[DEC_MAX_CPU_INTS][2];
+extern int_ptr asic_mask_nr_tbl[DEC_MAX_ASIC_INTS][2];
+extern int cpu_fpu_mask;
+
+
+/*
+ * Common interrupt routine prototypes for all DECStations
+ */
+extern void kn02_io_int(void);
+extern void kn02xa_io_int(void);
+extern void kn03_io_int(void);
+extern void asic_dma_int(void);
+extern void asic_all_int(void);
+extern void kn02_all_int(void);
+extern void cpu_all_int(void);
+
+extern void dec_intr_unimplemented(void);
+extern void asic_intr_unimplemented(void);
+
+#endif /* __ASSEMBLY__ */
+
+#endif

arch/mips/include/asm/dec/ioasic.h

@@ -0,0 +1,38 @@
+/*
+ *	include/asm-mips/dec/ioasic.h
+ *
+ *	DEC I/O ASIC access operations.
+ *
+ *	Copyright (C) 2000, 2002, 2003  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+
+#ifndef __ASM_DEC_IOASIC_H
+#define __ASM_DEC_IOASIC_H
+
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+extern spinlock_t ioasic_ssr_lock;
+
+extern volatile u32 *ioasic_base;
+
+static inline void ioasic_write(unsigned int reg, u32 v)
+{
+	ioasic_base[reg / 4] = v;
+}
+
+static inline u32 ioasic_read(unsigned int reg)
+{
+	return ioasic_base[reg / 4];
+}
+
+extern void init_ioasic_irqs(int base);
+
+extern int dec_ioasic_clocksource_init(void);
+
+#endif /* __ASM_DEC_IOASIC_H */

arch/mips/include/asm/dec/ioasic_addrs.h

@@ -0,0 +1,152 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Definitions for the address map in the JUNKIO Asic
+ *
+ * Created with Information from:
+ *
+ * "DEC 3000 300/400/500/600/700/800/900 AXP Models System Programmer's Manual"
+ *
+ * and the Mach Sources
+ *
+ * Copyright (C) 199x  the Anonymous
+ * Copyright (C) 2002, 2003  Maciej W. Rozycki
+ */
+
+#ifndef __ASM_MIPS_DEC_IOASIC_ADDRS_H
+#define __ASM_MIPS_DEC_IOASIC_ADDRS_H
+
+#define IOASIC_SLOT_SIZE 0x00040000
+
+/*
+ * Address ranges decoded by the I/O ASIC for onboard devices.
+ */
+#define IOASIC_SYS_ROM	(0*IOASIC_SLOT_SIZE)	/* system board ROM */
+#define IOASIC_IOCTL	(1*IOASIC_SLOT_SIZE)	/* I/O ASIC */
+#define IOASIC_ESAR	(2*IOASIC_SLOT_SIZE)	/* LANCE MAC address chip */
+#define IOASIC_LANCE	(3*IOASIC_SLOT_SIZE)	/* LANCE Ethernet */
+#define IOASIC_SCC0	(4*IOASIC_SLOT_SIZE)	/* SCC #0 */
+#define IOASIC_VDAC_HI	(5*IOASIC_SLOT_SIZE)	/* VDAC (maxine) */
+#define IOASIC_SCC1	(6*IOASIC_SLOT_SIZE)	/* SCC #1 (3min, 3max+) */
+#define IOASIC_VDAC_LO	(7*IOASIC_SLOT_SIZE)	/* VDAC (maxine) */
+#define IOASIC_TOY	(8*IOASIC_SLOT_SIZE)	/* RTC */
+#define IOASIC_ISDN	(9*IOASIC_SLOT_SIZE)	/* ISDN (maxine) */
+#define IOASIC_ERRADDR	(9*IOASIC_SLOT_SIZE)	/* bus error address (3max+) */
+#define IOASIC_CHKSYN	(10*IOASIC_SLOT_SIZE)	/* ECC syndrome (3max+) */
+#define IOASIC_ACC_BUS	(10*IOASIC_SLOT_SIZE)	/* ACCESS.bus (maxine) */
+#define IOASIC_MCR	(11*IOASIC_SLOT_SIZE)	/* memory control (3max+) */
+#define IOASIC_FLOPPY	(11*IOASIC_SLOT_SIZE)	/* FDC (maxine) */
+#define IOASIC_SCSI	(12*IOASIC_SLOT_SIZE)	/* ASC SCSI */
+#define IOASIC_FDC_DMA	(13*IOASIC_SLOT_SIZE)	/* FDC DMA (maxine) */
+#define IOASIC_SCSI_DMA	(14*IOASIC_SLOT_SIZE)	/* ??? */
+#define IOASIC_RES_15	(15*IOASIC_SLOT_SIZE)	/* unused? */
+
+
+/*
+ * Offsets for I/O ASIC registers
+ * (relative to (dec_kn_slot_base + IOASIC_IOCTL)).
+ */
+					/* all systems */
+#define IO_REG_SCSI_DMA_P	0x00	/* SCSI DMA Pointer */
+#define IO_REG_SCSI_DMA_BP	0x10	/* SCSI DMA Buffer Pointer */
+#define IO_REG_LANCE_DMA_P	0x20	/* LANCE DMA Pointer */
+#define IO_REG_SCC0A_T_DMA_P	0x30	/* SCC0A Transmit DMA Pointer */
+#define IO_REG_SCC0A_R_DMA_P	0x40	/* SCC0A Receive DMA Pointer */
+
+					/* except Maxine */
+#define IO_REG_SCC1A_T_DMA_P	0x50	/* SCC1A Transmit DMA Pointer */
+#define IO_REG_SCC1A_R_DMA_P	0x60	/* SCC1A Receive DMA Pointer */
+
+					/* Maxine */
+#define IO_REG_AB_T_DMA_P	0x50	/* ACCESS.bus Transmit DMA Pointer */
+#define IO_REG_AB_R_DMA_P	0x60	/* ACCESS.bus Receive DMA Pointer */
+#define IO_REG_FLOPPY_DMA_P	0x70	/* Floppy DMA Pointer */
+#define IO_REG_ISDN_T_DMA_P	0x80	/* ISDN Transmit DMA Pointer */
+#define IO_REG_ISDN_T_DMA_BP	0x90	/* ISDN Transmit DMA Buffer Pointer */
+#define IO_REG_ISDN_R_DMA_P	0xa0	/* ISDN Receive DMA Pointer */
+#define IO_REG_ISDN_R_DMA_BP	0xb0	/* ISDN Receive DMA Buffer Pointer */
+
+					/* all systems */
+#define IO_REG_DATA_0		0xc0	/* System Data Buffer 0 */
+#define IO_REG_DATA_1		0xd0	/* System Data Buffer 1 */
+#define IO_REG_DATA_2		0xe0	/* System Data Buffer 2 */
+#define IO_REG_DATA_3		0xf0	/* System Data Buffer 3 */
+
+					/* all systems */
+#define IO_REG_SSR		0x100	/* System Support Register */
+#define IO_REG_SIR		0x110	/* System Interrupt Register */
+#define IO_REG_SIMR		0x120	/* System Interrupt Mask Reg. */
+#define IO_REG_SAR		0x130	/* System Address Register */
+
+					/* Maxine */
+#define IO_REG_ISDN_T_DATA	0x140	/* ISDN Xmit Data Register */
+#define IO_REG_ISDN_R_DATA	0x150	/* ISDN Receive Data Register */
+
+					/* all systems */
+#define IO_REG_LANCE_SLOT	0x160	/* LANCE I/O Slot Register */
+#define IO_REG_SCSI_SLOT	0x170	/* SCSI Slot Register */
+#define IO_REG_SCC0A_SLOT	0x180	/* SCC0A DMA Slot Register */
+
+					/* except Maxine */
+#define IO_REG_SCC1A_SLOT	0x190	/* SCC1A DMA Slot Register */
+
+					/* Maxine */
+#define IO_REG_AB_SLOT		0x190	/* ACCESS.bus DMA Slot Register */
+#define IO_REG_FLOPPY_SLOT	0x1a0	/* Floppy Slot Register */
+
+					/* all systems */
+#define IO_REG_SCSI_SCR		0x1b0	/* SCSI Partial-Word DMA Control */
+#define IO_REG_SCSI_SDR0	0x1c0	/* SCSI DMA Partial Word 0 */
+#define IO_REG_SCSI_SDR1	0x1d0	/* SCSI DMA Partial Word 1 */
+#define IO_REG_FCTR		0x1e0	/* Free-Running Counter */
+#define IO_REG_RES_31		0x1f0	/* unused */
+
+
+/*
+ * The upper 16 bits of the System Support Register are a part of the
+ * I/O ASIC's internal DMA engine and thus are common to all I/O ASIC
+ * machines.  The exception is the Maxine, which makes use of the
+ * FLOPPY and ISDN bits (otherwise unused) and has a different SCC
+ * wiring.
+ */
+						/* all systems */
+#define IO_SSR_SCC0A_TX_DMA_EN	(1<<31)		/* SCC0A transmit DMA enable */
+#define IO_SSR_SCC0A_RX_DMA_EN	(1<<30)		/* SCC0A receive DMA enable */
+#define IO_SSR_RES_27		(1<<27)		/* unused */
+#define IO_SSR_RES_26		(1<<26)		/* unused */
+#define IO_SSR_RES_25		(1<<25)		/* unused */
+#define IO_SSR_RES_24		(1<<24)		/* unused */
+#define IO_SSR_RES_23		(1<<23)		/* unused */
+#define IO_SSR_SCSI_DMA_DIR	(1<<18)		/* SCSI DMA direction */
+#define IO_SSR_SCSI_DMA_EN	(1<<17)		/* SCSI DMA enable */
+#define IO_SSR_LANCE_DMA_EN	(1<<16)		/* LANCE DMA enable */
+
+						/* except Maxine */
+#define IO_SSR_SCC1A_TX_DMA_EN	(1<<29)		/* SCC1A transmit DMA enable */
+#define IO_SSR_SCC1A_RX_DMA_EN	(1<<28)		/* SCC1A receive DMA enable */
+#define IO_SSR_RES_22		(1<<22)		/* unused */
+#define IO_SSR_RES_21		(1<<21)		/* unused */
+#define IO_SSR_RES_20		(1<<20)		/* unused */
+#define IO_SSR_RES_19		(1<<19)		/* unused */
+
+						/* Maxine */
+#define IO_SSR_AB_TX_DMA_EN	(1<<29)		/* ACCESS.bus xmit DMA enable */
+#define IO_SSR_AB_RX_DMA_EN	(1<<28)		/* ACCESS.bus recv DMA enable */
+#define IO_SSR_FLOPPY_DMA_DIR	(1<<22)		/* Floppy DMA direction */
+#define IO_SSR_FLOPPY_DMA_EN	(1<<21)		/* Floppy DMA enable */
+#define IO_SSR_ISDN_TX_DMA_EN	(1<<20)		/* ISDN transmit DMA enable */
+#define IO_SSR_ISDN_RX_DMA_EN	(1<<19)		/* ISDN receive DMA enable */
+
+/*
+ * The lower 16 bits are system-specific.  Bits 15,11:8 are common and
+ * defined here.  The rest is defined in system-specific headers.
+ */
+#define KN0X_IO_SSR_DIAGDN	(1<<15)		/* diagnostic jumper */
+#define KN0X_IO_SSR_SCC_RST	(1<<11)		/* ~SCC0,1 (Z85C30) reset */
+#define KN0X_IO_SSR_RTC_RST	(1<<10)		/* ~RTC (DS1287) reset */
+#define KN0X_IO_SSR_ASC_RST	(1<<9)		/* ~ASC (NCR53C94) reset */
+#define KN0X_IO_SSR_LANCE_RST	(1<<8)		/* ~LANCE (Am7990) reset */
+
+#endif /* __ASM_MIPS_DEC_IOASIC_ADDRS_H */

arch/mips/include/asm/dec/ioasic_ints.h

@@ -0,0 +1,74 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Definitions for the interrupt related bits in the I/O ASIC
+ * interrupt status register (and the interrupt mask register, of course)
+ *
+ * Created with Information from:
+ *
+ * "DEC 3000 300/400/500/600/700/800/900 AXP Models System Programmer's Manual"
+ *
+ * and the Mach Sources
+ *
+ * Copyright (C) 199x  the Anonymous
+ * Copyright (C) 2002  Maciej W. Rozycki
+ */
+
+#ifndef __ASM_DEC_IOASIC_INTS_H
+#define __ASM_DEC_IOASIC_INTS_H
+
+/*
+ * The upper 16 bits are a part of the I/O ASIC's internal DMA engine
+ * and thus are common to all I/O ASIC machines.  The exception is
+ * the Maxine, which makes use of the FLOPPY and ISDN bits (otherwise
+ * unused) and has a different SCC wiring.
+ */
+					/* all systems */
+#define IO_INR_SCC0A_TXDMA	31	/* SCC0A transmit page end */
+#define IO_INR_SCC0A_TXERR	30	/* SCC0A transmit memory read error */
+#define IO_INR_SCC0A_RXDMA	29	/* SCC0A receive half page */
+#define IO_INR_SCC0A_RXERR	28	/* SCC0A receive overrun */
+#define IO_INR_ASC_DMA		19	/* ASC buffer pointer loaded */
+#define IO_INR_ASC_ERR		18	/* ASC page overrun */
+#define IO_INR_ASC_MERR		17	/* ASC memory read error */
+#define IO_INR_LANCE_MERR	16	/* LANCE memory read error */
+
+					/* except Maxine */
+#define IO_INR_SCC1A_TXDMA	27	/* SCC1A transmit page end */
+#define IO_INR_SCC1A_TXERR	26	/* SCC1A transmit memory read error */
+#define IO_INR_SCC1A_RXDMA	25	/* SCC1A receive half page */
+#define IO_INR_SCC1A_RXERR	24	/* SCC1A receive overrun */
+#define IO_INR_RES_23		23	/* unused */
+#define IO_INR_RES_22		22	/* unused */
+#define IO_INR_RES_21		21	/* unused */
+#define IO_INR_RES_20		20	/* unused */
+
+					/* Maxine */
+#define IO_INR_AB_TXDMA		27	/* ACCESS.bus transmit page end */
+#define IO_INR_AB_TXERR		26	/* ACCESS.bus xmit memory read error */
+#define IO_INR_AB_RXDMA		25	/* ACCESS.bus receive half page */
+#define IO_INR_AB_RXERR		24	/* ACCESS.bus receive overrun */
+#define IO_INR_FLOPPY_ERR	23	/* FDC error */
+#define IO_INR_ISDN_TXDMA	22	/* ISDN xmit buffer pointer loaded */
+#define IO_INR_ISDN_RXDMA	21	/* ISDN recv buffer pointer loaded */
+#define IO_INR_ISDN_ERR		20	/* ISDN memory read/overrun error */
+
+#define IO_INR_DMA		16	/* first DMA IRQ */
+
+/*
+ * The lower 16 bits are system-specific and thus defined in
+ * system-specific headers.
+ */
+
+
+#define IO_IRQ_BASE		8	/* first IRQ assigned to I/O ASIC */
+#define IO_IRQ_LINES		32	/* number of I/O ASIC interrupts */
+
+#define IO_IRQ_NR(n)		((n) + IO_IRQ_BASE)
+#define IO_IRQ_MASK(n)		(1 << (n))
+#define IO_IRQ_ALL		0x0000ffff
+#define IO_IRQ_DMA		0xffff0000
+
+#endif /* __ASM_DEC_IOASIC_INTS_H */

arch/mips/include/asm/dec/kn01.h

@@ -0,0 +1,89 @@
+/*
+ * Hardware info about DECstation DS2100/3100 systems (otherwise known as
+ * pmin/pmax or KN01).
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
+ * are by courtesy of Chris Fraser.
+ * Copyright (C) 2002, 2003, 2005  Maciej W. Rozycki
+ */
+#ifndef __ASM_MIPS_DEC_KN01_H
+#define __ASM_MIPS_DEC_KN01_H
+
+#define KN01_SLOT_BASE	0x10000000
+#define KN01_SLOT_SIZE	0x01000000
+
+/*
+ * Address ranges for devices.
+ */
+#define KN01_PMASK	(0*KN01_SLOT_SIZE)	/* color plane mask */
+#define KN01_PCC	(1*KN01_SLOT_SIZE)	/* PCC (DC503) cursor */
+#define KN01_VDAC	(2*KN01_SLOT_SIZE)	/* color map */
+#define KN01_RES_3	(3*KN01_SLOT_SIZE)	/* unused */
+#define KN01_RES_4	(4*KN01_SLOT_SIZE)	/* unused */
+#define KN01_RES_5	(5*KN01_SLOT_SIZE)	/* unused */
+#define KN01_RES_6	(6*KN01_SLOT_SIZE)	/* unused */
+#define KN01_ERRADDR	(7*KN01_SLOT_SIZE)	/* write error address */
+#define KN01_LANCE	(8*KN01_SLOT_SIZE)	/* LANCE (Am7990) Ethernet */
+#define KN01_LANCE_MEM	(9*KN01_SLOT_SIZE)	/* LANCE buffer memory */
+#define KN01_SII	(10*KN01_SLOT_SIZE)	/* SII (DC7061) SCSI */
+#define KN01_SII_MEM	(11*KN01_SLOT_SIZE)	/* SII buffer memory */
+#define KN01_DZ11	(12*KN01_SLOT_SIZE)	/* DZ11 (DC7085) serial */
+#define KN01_RTC	(13*KN01_SLOT_SIZE)	/* DS1287 RTC (bytes #0) */
+#define KN01_ESAR	(13*KN01_SLOT_SIZE)	/* MAC address (bytes #1) */
+#define KN01_CSR	(14*KN01_SLOT_SIZE)	/* system ctrl & status reg */
+#define KN01_SYS_ROM	(15*KN01_SLOT_SIZE)	/* system board ROM */
+
+
+/*
+ * Frame buffer memory address.
+ */
+#define KN01_VFB_MEM	0x0fc00000
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN01_CPU_INR_BUS	6	/* memory, I/O bus read/write errors */
+#define KN01_CPU_INR_VIDEO	6	/* PCC area detect #2 */
+#define KN01_CPU_INR_RTC	5	/* DS1287 RTC */
+#define KN01_CPU_INR_DZ11	4	/* DZ11 (DC7085) serial */
+#define KN01_CPU_INR_LANCE	3	/* LANCE (Am7990) Ethernet */
+#define KN01_CPU_INR_SII	2	/* SII (DC7061) SCSI */
+
+
+/*
+ * System Control & Status Register bits.
+ */
+#define KN01_CSR_MNFMOD		(1<<15)	/* MNFMOD manufacturing jumper */
+#define KN01_CSR_STATUS		(1<<14)	/* self-test result status output */
+#define KN01_CSR_PARDIS		(1<<13)	/* parity error disable */
+#define KN01_CSR_CRSRTST	(1<<12)	/* PCC test output */
+#define KN01_CSR_MONO		(1<<11)	/* mono/color fb SIMM installed */
+#define KN01_CSR_MEMERR		(1<<10)	/* write timeout error status & ack*/
+#define KN01_CSR_VINT		(1<<9)	/* PCC area detect #2 status & ack */
+#define KN01_CSR_TXDIS		(1<<8)	/* DZ11 transmit disable */
+#define KN01_CSR_VBGTRG		(1<<2)	/* blue DAC voltage over green (r/o) */
+#define KN01_CSR_VRGTRG		(1<<1)	/* red DAC voltage over green (r/o) */
+#define KN01_CSR_VRGTRB		(1<<0)	/* red DAC voltage over blue (r/o) */
+#define KN01_CSR_LEDS		(0xff<<0) /* ~diagnostic LEDs (w/o) */
+
+
+#ifndef __ASSEMBLY__
+
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+struct pt_regs;
+
+extern u16 cached_kn01_csr;
+
+extern void dec_kn01_be_init(void);
+extern int dec_kn01_be_handler(struct pt_regs *regs, int is_fixup);
+extern irqreturn_t dec_kn01_be_interrupt(int irq, void *dev_id);
+#endif
+
+#endif /* __ASM_MIPS_DEC_KN01_H */

arch/mips/include/asm/dec/kn02.h

@@ -0,0 +1,91 @@
+/*
+ * Hardware info about DECstation 5000/200 systems (otherwise known as
+ * 3max or KN02).
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
+ * are by courtesy of Chris Fraser.
+ * Copyright (C) 2002, 2003, 2005  Maciej W. Rozycki
+ */
+#ifndef __ASM_MIPS_DEC_KN02_H
+#define __ASM_MIPS_DEC_KN02_H
+
+#define KN02_SLOT_BASE	0x1fc00000
+#define KN02_SLOT_SIZE	0x00080000
+
+/*
+ * Address ranges decoded by the "system slot" logic for onboard devices.
+ */
+#define KN02_SYS_ROM	(0*KN02_SLOT_SIZE)	/* system board ROM */
+#define KN02_RES_1	(1*KN02_SLOT_SIZE)	/* unused */
+#define KN02_CHKSYN	(2*KN02_SLOT_SIZE)	/* ECC syndrome */
+#define KN02_ERRADDR	(3*KN02_SLOT_SIZE)	/* bus error address */
+#define KN02_DZ11	(4*KN02_SLOT_SIZE)	/* DZ11 (DC7085) serial */
+#define KN02_RTC	(5*KN02_SLOT_SIZE)	/* DS1287 RTC */
+#define KN02_CSR	(6*KN02_SLOT_SIZE)	/* system ctrl & status reg */
+#define KN02_SYS_ROM_7	(7*KN02_SLOT_SIZE)	/* system board ROM (alias) */
+
+
+/*
+ * System Control & Status Register bits.
+ */
+#define KN02_CSR_RES_28		(0xf<<28)	/* unused */
+#define KN02_CSR_PSU		(1<<27)		/* power supply unit warning */
+#define KN02_CSR_NVRAM		(1<<26)		/* ~NVRAM clear jumper */
+#define KN02_CSR_REFEVEN	(1<<25)		/* mem refresh bank toggle */
+#define KN02_CSR_NRMOD		(1<<24)		/* ~NRMOD manufact. jumper */
+#define KN02_CSR_IOINTEN	(0xff<<16)	/* IRQ mask bits */
+#define KN02_CSR_DIAGCHK	(1<<15)		/* diagn/norml ECC reads */
+#define KN02_CSR_DIAGGEN	(1<<14)		/* diagn/norml ECC writes */
+#define KN02_CSR_CORRECT	(1<<13)		/* ECC correct/check */
+#define KN02_CSR_LEDIAG		(1<<12)		/* ECC diagn. latch strobe */
+#define KN02_CSR_TXDIS		(1<<11)		/* DZ11 transmit disable */
+#define KN02_CSR_BNK32M		(1<<10)		/* 32M/8M stride */
+#define KN02_CSR_DIAGDN		(1<<9)		/* DIAGDN manufact. jumper */
+#define KN02_CSR_BAUD38		(1<<8)		/* DZ11 38/19kbps ext. rate */
+#define KN02_CSR_IOINT		(0xff<<0)	/* IRQ status bits (r/o) */
+#define KN02_CSR_LEDS		(0xff<<0)	/* ~diagnostic LEDs (w/o) */
+
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN02_CPU_INR_RES_6	6	/* unused */
+#define KN02_CPU_INR_BUS	5	/* memory, I/O bus read/write errors */
+#define KN02_CPU_INR_RES_4	4	/* unused */
+#define KN02_CPU_INR_RTC	3	/* DS1287 RTC */
+#define KN02_CPU_INR_CASCADE	2	/* CSR cascade */
+
+/*
+ * CSR interrupt bits.
+ */
+#define KN02_CSR_INR_DZ11	7	/* DZ11 (DC7085) serial */
+#define KN02_CSR_INR_LANCE	6	/* LANCE (Am7990) Ethernet */
+#define KN02_CSR_INR_ASC	5	/* ASC (NCR53C94) SCSI */
+#define KN02_CSR_INR_RES_4	4	/* unused */
+#define KN02_CSR_INR_RES_3	3	/* unused */
+#define KN02_CSR_INR_TC2	2	/* TURBOchannel slot #2 */
+#define KN02_CSR_INR_TC1	1	/* TURBOchannel slot #1 */
+#define KN02_CSR_INR_TC0	0	/* TURBOchannel slot #0 */
+
+
+#define KN02_IRQ_BASE		8	/* first IRQ assigned to CSR */
+#define KN02_IRQ_LINES		8	/* number of CSR interrupts */
+
+#define KN02_IRQ_NR(n)		((n) + KN02_IRQ_BASE)
+#define KN02_IRQ_MASK(n)	(1 << (n))
+#define KN02_IRQ_ALL		0xff
+
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+extern u32 cached_kn02_csr;
+extern void init_kn02_irqs(int base);
+#endif
+
+#endif /* __ASM_MIPS_DEC_KN02_H */

arch/mips/include/asm/dec/kn02ba.h

@@ -0,0 +1,67 @@
+/*
+ *	include/asm-mips/dec/kn02ba.h
+ *
+ *	DECstation 5000/1xx (3min or KN02-BA) definitions.
+ *
+ *	Copyright (C) 2002, 2003  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+#ifndef __ASM_MIPS_DEC_KN02BA_H
+#define __ASM_MIPS_DEC_KN02BA_H
+
+#include <asm/dec/kn02xa.h>		/* For common definitions. */
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN02BA_CPU_INR_HALT	6	/* HALT button */
+#define KN02BA_CPU_INR_CASCADE	5	/* I/O ASIC cascade */
+#define KN02BA_CPU_INR_TC2	4	/* TURBOchannel slot #2 */
+#define KN02BA_CPU_INR_TC1	3	/* TURBOchannel slot #1 */
+#define KN02BA_CPU_INR_TC0	2	/* TURBOchannel slot #0 */
+
+/*
+ * I/O ASIC interrupt bits.  Star marks denote non-IRQ status bits.
+ */
+#define KN02BA_IO_INR_RES_15	15	/* unused */
+#define KN02BA_IO_INR_NVRAM	14	/* (*) NVRAM clear jumper */
+#define KN02BA_IO_INR_RES_13	13	/* unused */
+#define KN02BA_IO_INR_BUS	12	/* memory, I/O bus read/write errors */
+#define KN02BA_IO_INR_RES_11	11	/* unused */
+#define KN02BA_IO_INR_NRMOD	10	/* (*) NRMOD manufacturing jumper */
+#define KN02BA_IO_INR_ASC	9	/* ASC (NCR53C94) SCSI */
+#define KN02BA_IO_INR_LANCE	8	/* LANCE (Am7990) Ethernet */
+#define KN02BA_IO_INR_SCC1	7	/* SCC (Z85C30) serial #1 */
+#define KN02BA_IO_INR_SCC0	6	/* SCC (Z85C30) serial #0 */
+#define KN02BA_IO_INR_RTC	5	/* DS1287 RTC */
+#define KN02BA_IO_INR_PSU	4	/* power supply unit warning */
+#define KN02BA_IO_INR_RES_3	3	/* unused */
+#define KN02BA_IO_INR_ASC_DATA	2	/* SCSI data ready (for PIO) */
+#define KN02BA_IO_INR_PBNC	1	/* ~HALT button debouncer */
+#define KN02BA_IO_INR_PBNO	0	/* HALT button debouncer */
+
+
+/*
+ * Memory Error Register bits.
+ */
+#define KN02BA_MER_RES_27	(1<<27)		/* unused */
+
+/*
+ * Memory Size Register bits.
+ */
+#define KN02BA_MSR_RES_17	(0x3ff<<17)	/* unused */
+
+/*
+ * I/O ASIC System Support Register bits.
+ */
+#define KN02BA_IO_SSR_TXDIS1	(1<<14)		/* SCC1 transmit disable */
+#define KN02BA_IO_SSR_TXDIS0	(1<<13)		/* SCC0 transmit disable */
+#define KN02BA_IO_SSR_RES_12	(1<<12)		/* unused */
+
+#define KN02BA_IO_SSR_LEDS	(0xff<<0)	/* ~diagnostic LEDs */
+
+#endif /* __ASM_MIPS_DEC_KN02BA_H */

arch/mips/include/asm/dec/kn02ca.h

@@ -0,0 +1,79 @@
+/*
+ *	include/asm-mips/dec/kn02ca.h
+ *
+ *	Personal DECstation 5000/xx (Maxine or KN02-CA) definitions.
+ *
+ *	Copyright (C) 2002, 2003  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+#ifndef __ASM_MIPS_DEC_KN02CA_H
+#define __ASM_MIPS_DEC_KN02CA_H
+
+#include <asm/dec/kn02xa.h>		/* For common definitions. */
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN02CA_CPU_INR_HALT	6	/* HALT from ACCESS.Bus */
+#define KN02CA_CPU_INR_CASCADE	5	/* I/O ASIC cascade */
+#define KN02CA_CPU_INR_BUS	4	/* memory, I/O bus read/write errors */
+#define KN02CA_CPU_INR_RTC	3	/* DS1287 RTC */
+#define KN02CA_CPU_INR_TIMER	2	/* ARC periodic timer */
+
+/*
+ * I/O ASIC interrupt bits.  Star marks denote non-IRQ status bits.
+ */
+#define KN02CA_IO_INR_FLOPPY	15	/* 82077 FDC */
+#define KN02CA_IO_INR_NVRAM	14	/* (*) NVRAM clear jumper */
+#define KN02CA_IO_INR_POWERON	13	/* (*) ACCESS.Bus/power-on reset */
+#define KN02CA_IO_INR_TC0	12	/* TURBOchannel slot #0 */
+#define KN02CA_IO_INR_TIMER	12	/* ARC periodic timer (?) */
+#define KN02CA_IO_INR_ISDN	11	/* Am79C30A ISDN */
+#define KN02CA_IO_INR_NRMOD	10	/* (*) NRMOD manufacturing jumper */
+#define KN02CA_IO_INR_ASC	9	/* ASC (NCR53C94) SCSI */
+#define KN02CA_IO_INR_LANCE	8	/* LANCE (Am7990) Ethernet */
+#define KN02CA_IO_INR_HDFLOPPY	7	/* (*) HD (1.44MB) floppy status */
+#define KN02CA_IO_INR_SCC0	6	/* SCC (Z85C30) serial #0 */
+#define KN02CA_IO_INR_TC1	5	/* TURBOchannel slot #1 */
+#define KN02CA_IO_INR_XDFLOPPY	4	/* (*) XD (2.88MB) floppy status */
+#define KN02CA_IO_INR_VIDEO	3	/* framebuffer */
+#define KN02CA_IO_INR_XVIDEO	2	/* ~framebuffer */
+#define KN02CA_IO_INR_AB_XMIT	1	/* ACCESS.bus transmit */
+#define KN02CA_IO_INR_AB_RECV	0	/* ACCESS.bus receive */
+
+
+/*
+ * Memory Error Register bits.
+ */
+#define KN02CA_MER_INTR		(1<<27)		/* ARC IRQ status & ack */
+
+/*
+ * Memory Size Register bits.
+ */
+#define KN02CA_MSR_INTREN	(1<<26)		/* ARC periodic IRQ enable */
+#define KN02CA_MSR_MS10EN	(1<<25)		/* 10/1ms IRQ period select */
+#define KN02CA_MSR_PFORCE	(0xf<<21)	/* byte lane error force */
+#define KN02CA_MSR_MABEN	(1<<20)		/* A side VFB address enable */
+#define KN02CA_MSR_LASTBANK	(0x7<<17)	/* onboard RAM bank # */
+
+/*
+ * I/O ASIC System Support Register bits.
+ */
+#define KN03CA_IO_SSR_RES_14	(1<<14)		/* unused */
+#define KN03CA_IO_SSR_RES_13	(1<<13)		/* unused */
+#define KN03CA_IO_SSR_ISDN_RST	(1<<12)		/* ~ISDN (Am79C30A) reset */
+
+#define KN03CA_IO_SSR_FLOPPY_RST (1<<7)		/* ~FDC (82077) reset */
+#define KN03CA_IO_SSR_VIDEO_RST	(1<<6)		/* ~framebuffer reset */
+#define KN03CA_IO_SSR_AB_RST	(1<<5)		/* ACCESS.bus reset */
+#define KN03CA_IO_SSR_RES_4	(1<<4)		/* unused */
+#define KN03CA_IO_SSR_RES_3	(1<<4)		/* unused */
+#define KN03CA_IO_SSR_RES_2	(1<<2)		/* unused */
+#define KN03CA_IO_SSR_RES_1	(1<<1)		/* unused */
+#define KN03CA_IO_SSR_LED	(1<<0)		/* power LED */
+
+#endif /* __ASM_MIPS_DEC_KN02CA_H */

arch/mips/include/asm/dec/kn02xa.h

@@ -0,0 +1,84 @@
+/*
+ * Hardware info common to DECstation 5000/1xx systems (otherwise
+ * known as 3min or kn02ba) and Personal DECstations 5000/xx ones
+ * (otherwise known as maxine or kn02ca).
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
+ * are by courtesy of Chris Fraser.
+ * Copyright (C) 2000, 2002, 2003, 2005  Maciej W. Rozycki
+ *
+ * These are addresses which have to be known early in the boot process.
+ * For other addresses refer to tc.h, ioasic_addrs.h and friends.
+ */
+#ifndef __ASM_MIPS_DEC_KN02XA_H
+#define __ASM_MIPS_DEC_KN02XA_H
+
+#include <asm/dec/ioasic_addrs.h>
+
+#define KN02XA_SLOT_BASE	0x1c000000
+
+/*
+ * Memory control ASIC registers.
+ */
+#define KN02XA_MER		0x0c400000	/* memory error register */
+#define KN02XA_MSR		0x0c800000	/* memory size register */
+
+/*
+ * CPU control ASIC registers.
+ */
+#define KN02XA_MEM_CONF		0x0e000000	/* write timeout config */
+#define KN02XA_EAR		0x0e000004	/* error address register */
+#define KN02XA_BOOT0		0x0e000008	/* boot 0 register */
+#define KN02XA_MEM_INTR		0x0e00000c	/* write err IRQ stat & ack */
+
+/*
+ * Memory Error Register bits, common definitions.
+ * The rest is defined in system-specific headers.
+ */
+#define KN02XA_MER_RES_28	(0xf<<28)	/* unused */
+#define KN02XA_MER_RES_17	(0x3ff<<17)	/* unused */
+#define KN02XA_MER_PAGERR	(1<<16)		/* 2k page boundary error */
+#define KN02XA_MER_TRANSERR	(1<<15)		/* transfer length error */
+#define KN02XA_MER_PARDIS	(1<<14)		/* parity error disable */
+#define KN02XA_MER_SIZE		(1<<13)		/* r/o mirror of MSR_SIZE */
+#define KN02XA_MER_RES_12	(1<<12)		/* unused */
+#define KN02XA_MER_BYTERR	(0xf<<8)	/* byte lane error bitmask: */
+#define KN02XA_MER_BYTERR_3	(0x8<<8)	/* byte lane #3 */
+#define KN02XA_MER_BYTERR_2	(0x4<<8)	/* byte lane #2 */
+#define KN02XA_MER_BYTERR_1	(0x2<<8)	/* byte lane #1 */
+#define KN02XA_MER_BYTERR_0	(0x1<<8)	/* byte lane #0 */
+#define KN02XA_MER_RES_0	(0xff<<0)	/* unused */
+
+/*
+ * Memory Size Register bits, common definitions.
+ * The rest is defined in system-specific headers.
+ */
+#define KN02XA_MSR_RES_27	(0x1f<<27)	/* unused */
+#define KN02XA_MSR_RES_14	(0x7<<14)	/* unused */
+#define KN02XA_MSR_SIZE		(1<<13)		/* 16M/4M stride */
+#define KN02XA_MSR_RES_0	(0x1fff<<0)	/* unused */
+
+/*
+ * Error Address Register bits.
+ */
+#define KN02XA_EAR_RES_29	(0x7<<29)	/* unused */
+#define KN02XA_EAR_ADDRESS	(0x7ffffff<<2)	/* address involved */
+#define KN02XA_EAR_RES_0	(0x3<<0)	/* unused */
+
+
+#ifndef __ASSEMBLY__
+
+#include <linux/interrupt.h>
+
+struct pt_regs;
+
+extern void dec_kn02xa_be_init(void);
+extern int dec_kn02xa_be_handler(struct pt_regs *regs, int is_fixup);
+extern irqreturn_t dec_kn02xa_be_interrupt(int irq, void *dev_id);
+#endif
+
+#endif /* __ASM_MIPS_DEC_KN02XA_H */

arch/mips/include/asm/dec/kn03.h

@@ -0,0 +1,74 @@
+/*
+ * Hardware info about DECstation 5000/2x0 systems (otherwise known as
+ * 3max+) and DECsystem 5900 systems (otherwise known as bigmax) which
+ * differ mechanically but are otherwise identical (both are known as
+ * KN03).
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
+ * are by courtesy of Chris Fraser.
+ * Copyright (C) 2000, 2002, 2003, 2005  Maciej W. Rozycki
+ */
+#ifndef __ASM_MIPS_DEC_KN03_H
+#define __ASM_MIPS_DEC_KN03_H
+
+#include <asm/dec/ecc.h>
+#include <asm/dec/ioasic_addrs.h>
+
+#define KN03_SLOT_BASE		0x1f800000
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN03_CPU_INR_HALT	6	/* HALT button */
+#define KN03_CPU_INR_BUS	5	/* memory, I/O bus read/write errors */
+#define KN03_CPU_INR_RES_4	4	/* unused */
+#define KN03_CPU_INR_RTC	3	/* DS1287 RTC */
+#define KN03_CPU_INR_CASCADE	2	/* I/O ASIC cascade */
+
+/*
+ * I/O ASIC interrupt bits.  Star marks denote non-IRQ status bits.
+ */
+#define KN03_IO_INR_3MAXP	15	/* (*) 3max+/bigmax ID */
+#define KN03_IO_INR_NVRAM	14	/* (*) NVRAM clear jumper */
+#define KN03_IO_INR_TC2		13	/* TURBOchannel slot #2 */
+#define KN03_IO_INR_TC1		12	/* TURBOchannel slot #1 */
+#define KN03_IO_INR_TC0		11	/* TURBOchannel slot #0 */
+#define KN03_IO_INR_NRMOD	10	/* (*) NRMOD manufacturing jumper */
+#define KN03_IO_INR_ASC		9	/* ASC (NCR53C94) SCSI */
+#define KN03_IO_INR_LANCE	8	/* LANCE (Am7990) Ethernet */
+#define KN03_IO_INR_SCC1	7	/* SCC (Z85C30) serial #1 */
+#define KN03_IO_INR_SCC0	6	/* SCC (Z85C30) serial #0 */
+#define KN03_IO_INR_RTC		5	/* DS1287 RTC */
+#define KN03_IO_INR_PSU		4	/* power supply unit warning */
+#define KN03_IO_INR_RES_3	3	/* unused */
+#define KN03_IO_INR_ASC_DATA	2	/* SCSI data ready (for PIO) */
+#define KN03_IO_INR_PBNC	1	/* ~HALT button debouncer */
+#define KN03_IO_INR_PBNO	0	/* HALT button debouncer */
+
+
+/*
+ * Memory Control Register bits.
+ */
+#define KN03_MCR_RES_16		(0xffff<<16)	/* unused */
+#define KN03_MCR_DIAGCHK	(1<<15)		/* diagn/norml ECC reads */
+#define KN03_MCR_DIAGGEN	(1<<14)		/* diagn/norml ECC writes */
+#define KN03_MCR_CORRECT	(1<<13)		/* ECC correct/check */
+#define KN03_MCR_RES_11		(0x3<<12)	/* unused */
+#define KN03_MCR_BNK32M		(1<<10)		/* 32M/8M stride */
+#define KN03_MCR_RES_7		(0x7<<7)	/* unused */
+#define KN03_MCR_CHECK		(0x7f<<0)	/* diagnostic check bits */
+
+/*
+ * I/O ASIC System Support Register bits.
+ */
+#define KN03_IO_SSR_TXDIS1	(1<<14)		/* SCC1 transmit disable */
+#define KN03_IO_SSR_TXDIS0	(1<<13)		/* SCC0 transmit disable */
+#define KN03_IO_SSR_RES_12	(1<<12)		/* unused */
+
+#define KN03_IO_SSR_LEDS	(0xff<<0)	/* ~diagnostic LEDs */
+
+#endif /* __ASM_MIPS_DEC_KN03_H */

arch/mips/include/asm/dec/kn05.h

@@ -0,0 +1,85 @@
+/*
+ *	include/asm-mips/dec/kn05.h
+ *
+ *	DECstation/DECsystem 5000/260 (4max+ or KN05), 5000/150 (4min
+ *	or KN04-BA), Personal DECstation/DECsystem 5000/50 (4maxine or
+ *	KN04-CA) and DECsystem 5900/260 (KN05) R4k CPU card MB ASIC
+ *	definitions.
+ *
+ *	Copyright (C) 2002, 2003, 2005, 2008  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	WARNING!  All this information is pure guesswork based on the
+ *	ROM.  It is provided here in hope it will give someone some
+ *	food for thought.  No documentation for the KN05 nor the KN04
+ *	module has been located so far.
+ */
+#ifndef __ASM_MIPS_DEC_KN05_H
+#define __ASM_MIPS_DEC_KN05_H
+
+#include <asm/dec/ioasic_addrs.h>
+
+/*
+ * The oncard MB (Memory Buffer) ASIC provides an additional address
+ * decoder.  Certain address ranges within the "high" 16 slots are
+ * passed to the I/O ASIC's decoder like with the KN03 or KN02-BA/CA.
+ * Others are handled locally.  "Low" slots are always passed.
+ */
+#define KN4K_SLOT_BASE	0x1fc00000
+
+#define KN4K_MB_ROM	(0*IOASIC_SLOT_SIZE)	/* KN05/KN04 card ROM */
+#define KN4K_IOCTL	(1*IOASIC_SLOT_SIZE)	/* I/O ASIC */
+#define KN4K_ESAR	(2*IOASIC_SLOT_SIZE)	/* LANCE MAC address chip */
+#define KN4K_LANCE	(3*IOASIC_SLOT_SIZE)	/* LANCE Ethernet */
+#define KN4K_MB_INT	(4*IOASIC_SLOT_SIZE)	/* MB interrupt register */
+#define KN4K_MB_EA	(5*IOASIC_SLOT_SIZE)	/* MB error address? */
+#define KN4K_MB_EC	(6*IOASIC_SLOT_SIZE)	/* MB error ??? */
+#define KN4K_MB_CSR	(7*IOASIC_SLOT_SIZE)	/* MB control & status */
+#define KN4K_RES_08	(8*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_09	(9*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_10	(10*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_11	(11*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_SCSI	(12*IOASIC_SLOT_SIZE)	/* ASC SCSI */
+#define KN4K_RES_13	(13*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_14	(14*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_15	(15*IOASIC_SLOT_SIZE)	/* unused? */
+
+/*
+ * MB ASIC interrupt bits.
+ */
+#define KN4K_MB_INR_MB		4	/* ??? */
+#define KN4K_MB_INR_MT		3	/* memory, I/O bus read/write errors */
+#define KN4K_MB_INR_RES_2	2	/* unused */
+#define KN4K_MB_INR_RTC		1	/* RTC */
+#define KN4K_MB_INR_TC		0	/* I/O ASIC cascade */
+
+/*
+ * Bits for the MB interrupt register.
+ * The register appears read-only.
+ */
+#define KN4K_MB_INT_IRQ		(0x1f<<0)	/* CPU Int[4:0] status. */
+#define KN4K_MB_INT_IRQ_N(n)	(1<<(n))	/* Individual status bits. */
+
+/*
+ * Bits for the MB control & status register.
+ * Set to 0x00bf8001 for KN05 and to 0x003f8000 for KN04 by the firmware.
+ */
+#define KN4K_MB_CSR_PF		(1<<0)		/* PreFetching enable? */
+#define KN4K_MB_CSR_F		(1<<1)		/* ??? */
+#define KN4K_MB_CSR_ECC		(0xff<<2)	/* ??? */
+#define KN4K_MB_CSR_OD		(1<<10)		/* ??? */
+#define KN4K_MB_CSR_CP		(1<<11)		/* ??? */
+#define KN4K_MB_CSR_UNC		(1<<12)		/* ??? */
+#define KN4K_MB_CSR_IM		(1<<13)		/* ??? */
+#define KN4K_MB_CSR_NC		(1<<14)		/* ??? */
+#define KN4K_MB_CSR_EE		(1<<15)		/* (bus) Exception Enable? */
+#define KN4K_MB_CSR_MSK		(0x1f<<16)	/* CPU Int[4:0] mask */
+#define KN4K_MB_CSR_MSK_N(n)	(1<<((n)+16))	/* Individual mask bits. */
+#define KN4K_MB_CSR_FW		(1<<21)		/* ??? */
+#define KN4K_MB_CSR_W		(1<<31)		/* ??? */
+
+#endif /* __ASM_MIPS_DEC_KN05_H */

arch/mips/include/asm/dec/kn230.h

@@ -0,0 +1,26 @@
+/*
+ *	include/asm-mips/dec/kn230.h
+ *
+ *	DECsystem 5100 (MIPSmate or KN230) definitions.
+ *
+ *	Copyright (C) 2002, 2003  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+#ifndef __ASM_MIPS_DEC_KN230_H
+#define __ASM_MIPS_DEC_KN230_H
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN230_CPU_INR_HALT	6	/* HALT button */
+#define KN230_CPU_INR_BUS	5	/* memory, I/O bus read/write errors */
+#define KN230_CPU_INR_RTC	4	/* DS1287 RTC */
+#define KN230_CPU_INR_SII	3	/* SII (DC7061) SCSI */
+#define KN230_CPU_INR_LANCE	3	/* LANCE (Am7990) Ethernet */
+#define KN230_CPU_INR_DZ11	2	/* DZ11 (DC7085) serial */
+
+#endif /* __ASM_MIPS_DEC_KN230_H */

arch/mips/include/asm/dec/machtype.h

@@ -0,0 +1,27 @@
+/*
+ * Various machine type macros
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 1998, 2000 Harald Koerfgen
+ */
+
+#ifndef __ASM_DEC_MACHTYPE_H
+#define __ASM_DEC_MACHTYPE_H
+
+#include <asm/bootinfo.h>
+
+#define TURBOCHANNEL	(mips_machtype == MACH_DS5000_200 || \
+			 mips_machtype == MACH_DS5000_1XX || \
+			 mips_machtype == MACH_DS5000_XX  || \
+			 mips_machtype == MACH_DS5000_2X0 || \
+			 mips_machtype == MACH_DS5900)
+
+#define IOASIC		(mips_machtype == MACH_DS5000_1XX || \
+			 mips_machtype == MACH_DS5000_XX  || \
+			 mips_machtype == MACH_DS5000_2X0 || \
+			 mips_machtype == MACH_DS5900)
+
+#endif

arch/mips/include/asm/dec/prom.h

@@ -0,0 +1,174 @@
+/*
+ *	include/asm-mips/dec/prom.h
+ *
+ *	DECstation PROM interface.
+ *
+ *	Copyright (C) 2002  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Based on arch/mips/dec/prom/prom.h by the Anonymous.
+ */
+#ifndef _ASM_DEC_PROM_H
+#define _ASM_DEC_PROM_H
+
+#include <linux/types.h>
+
+#include <asm/addrspace.h>
+
+/*
+ * PMAX/3MAX PROM entry points for DS2100/3100's and DS5000/2xx's.
+ * Many of these will work for MIPSen as well!
+ */
+#define VEC_RESET		(u64 *)CKSEG1ADDR(0x1fc00000)
+							/* Prom base address */
+
+#define PMAX_PROM_ENTRY(x)	(VEC_RESET + (x))	/* Prom jump table */
+
+#define PMAX_PROM_HALT		PMAX_PROM_ENTRY(2)	/* valid on MIPSen */
+#define PMAX_PROM_AUTOBOOT	PMAX_PROM_ENTRY(5)	/* valid on MIPSen */
+#define PMAX_PROM_OPEN		PMAX_PROM_ENTRY(6)
+#define PMAX_PROM_READ		PMAX_PROM_ENTRY(7)
+#define PMAX_PROM_CLOSE		PMAX_PROM_ENTRY(10)
+#define PMAX_PROM_LSEEK		PMAX_PROM_ENTRY(11)
+#define PMAX_PROM_GETCHAR	PMAX_PROM_ENTRY(12)
+#define PMAX_PROM_PUTCHAR	PMAX_PROM_ENTRY(13)	/* 12 on MIPSen */
+#define PMAX_PROM_GETS		PMAX_PROM_ENTRY(15)
+#define PMAX_PROM_PRINTF	PMAX_PROM_ENTRY(17)
+#define PMAX_PROM_GETENV	PMAX_PROM_ENTRY(33)	/* valid on MIPSen */
+
+
+/*
+ * Magic number indicating REX PROM available on DECstation.  Found in
+ * register a2 on transfer of control to program from PROM.
+ */
+#define REX_PROM_MAGIC		0x30464354
+
+#ifdef CONFIG_64BIT
+
+#define prom_is_rex(magic)	1	/* KN04 and KN05 are REX PROMs.  */
+
+#else /* !CONFIG_64BIT */
+
+#define prom_is_rex(magic)	((magic) == REX_PROM_MAGIC)
+
+#endif /* !CONFIG_64BIT */
+
+
+/*
+ * 3MIN/MAXINE PROM entry points for DS5000/1xx's, DS5000/xx's and
+ * DS5000/2x0.
+ */
+#define REX_PROM_GETBITMAP	0x84/4	/* get mem bitmap */
+#define REX_PROM_GETCHAR	0x24/4	/* getch() */
+#define REX_PROM_GETENV		0x64/4	/* get env. variable */
+#define REX_PROM_GETSYSID	0x80/4	/* get system id */
+#define REX_PROM_GETTCINFO	0xa4/4
+#define REX_PROM_PRINTF		0x30/4	/* printf() */
+#define REX_PROM_SLOTADDR	0x6c/4	/* slotaddr */
+#define REX_PROM_BOOTINIT	0x54/4	/* open() */
+#define REX_PROM_BOOTREAD	0x58/4	/* read() */
+#define REX_PROM_CLEARCACHE	0x7c/4
+
+
+/*
+ * Used by rex_getbitmap().
+ */
+typedef struct {
+	int pagesize;
+	unsigned char bitmap[0];
+} memmap;
+
+
+/*
+ * Function pointers as read from a PROM's callback vector.
+ */
+extern int (*__rex_bootinit)(void);
+extern int (*__rex_bootread)(void);
+extern int (*__rex_getbitmap)(memmap *);
+extern unsigned long *(*__rex_slot_address)(int);
+extern void *(*__rex_gettcinfo)(void);
+extern int (*__rex_getsysid)(void);
+extern void (*__rex_clear_cache)(void);
+
+extern int (*__prom_getchar)(void);
+extern char *(*__prom_getenv)(char *);
+extern int (*__prom_printf)(char *, ...);
+
+extern int (*__pmax_open)(char*, int);
+extern int (*__pmax_lseek)(int, long, int);
+extern int (*__pmax_read)(int, void *, int);
+extern int (*__pmax_close)(int);
+
+
+#ifdef CONFIG_64BIT
+
+/*
+ * On MIPS64 we have to call PROM functions via a helper
+ * dispatcher to accommodate ABI incompatibilities.
+ */
+#define __DEC_PROM_O32(fun, arg) fun arg __asm__(#fun); \
+				 __asm__(#fun " = call_o32")
+
+int __DEC_PROM_O32(_rex_bootinit, (int (*)(void), void *));
+int __DEC_PROM_O32(_rex_bootread, (int (*)(void), void *));
+int __DEC_PROM_O32(_rex_getbitmap, (int (*)(memmap *), void *, memmap *));
+unsigned long *__DEC_PROM_O32(_rex_slot_address,
+			     (unsigned long *(*)(int), void *, int));
+void *__DEC_PROM_O32(_rex_gettcinfo, (void *(*)(void), void *));
+int __DEC_PROM_O32(_rex_getsysid, (int (*)(void), void *));
+void __DEC_PROM_O32(_rex_clear_cache, (void (*)(void), void *));
+
+int __DEC_PROM_O32(_prom_getchar, (int (*)(void), void *));
+char *__DEC_PROM_O32(_prom_getenv, (char *(*)(char *), void *, char *));
+int __DEC_PROM_O32(_prom_printf, (int (*)(char *, ...), void *, char *, ...));
+
+
+#define rex_bootinit()		_rex_bootinit(__rex_bootinit, NULL)
+#define rex_bootread()		_rex_bootread(__rex_bootread, NULL)
+#define rex_getbitmap(x)	_rex_getbitmap(__rex_getbitmap, NULL, x)
+#define rex_slot_address(x)	_rex_slot_address(__rex_slot_address, NULL, x)
+#define rex_gettcinfo()		_rex_gettcinfo(__rex_gettcinfo, NULL)
+#define rex_getsysid()		_rex_getsysid(__rex_getsysid, NULL)
+#define rex_clear_cache()	_rex_clear_cache(__rex_clear_cache, NULL)
+
+#define prom_getchar()		_prom_getchar(__prom_getchar, NULL)
+#define prom_getenv(x)		_prom_getenv(__prom_getenv, NULL, x)
+#define prom_printf(x...)	_prom_printf(__prom_printf, NULL, x)
+
+#else /* !CONFIG_64BIT */
+
+/*
+ * On plain MIPS we just call PROM functions directly.
+ */
+#define rex_bootinit		__rex_bootinit
+#define rex_bootread		__rex_bootread
+#define rex_getbitmap		__rex_getbitmap
+#define rex_slot_address	__rex_slot_address
+#define rex_gettcinfo		__rex_gettcinfo
+#define rex_getsysid		__rex_getsysid
+#define rex_clear_cache		__rex_clear_cache
+
+#define prom_getchar		__prom_getchar
+#define prom_getenv		__prom_getenv
+#define prom_printf		__prom_printf
+
+#define pmax_open		__pmax_open
+#define pmax_lseek		__pmax_lseek
+#define pmax_read		__pmax_read
+#define pmax_close		__pmax_close
+
+#endif /* !CONFIG_64BIT */
+
+
+extern void prom_meminit(u32);
+extern void prom_identify_arch(u32);
+extern void prom_init_cmdline(s32, s32 *, u32);
+
+extern void register_prom_console(void);
+extern void unregister_prom_console(void);
+
+#endif /* _ASM_DEC_PROM_H */

arch/mips/include/asm/dec/system.h

@@ -0,0 +1,19 @@
+/*
+ *	include/asm-mips/dec/system.h
+ *
+ *	Generic DECstation/DECsystem bits.
+ *
+ *	Copyright (C) 2005, 2006  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+#ifndef __ASM_DEC_SYSTEM_H
+#define __ASM_DEC_SYSTEM_H
+
+extern unsigned long dec_kn_slot_base, dec_kn_slot_size;
+extern int dec_tc_bus;
+
+#endif /* __ASM_DEC_SYSTEM_H */

arch/mips/include/asm/delay.h

@@ -0,0 +1,32 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 by Waldorf Electronics
+ * Copyright (C) 1995 - 2000, 01, 03 by Ralf Baechle
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2007  Maciej W. Rozycki
+ */
+#ifndef _ASM_DELAY_H
+#define _ASM_DELAY_H
+
+#include <linux/param.h>
+
+extern void __delay(unsigned long loops);
+extern void __ndelay(unsigned long ns);
+extern void __udelay(unsigned long us);
+
+#define ndelay(ns) __ndelay(ns)
+#define udelay(us) __udelay(us)
+
+/* make sure "usecs *= ..." in udelay do not overflow. */
+#if HZ >= 1000
+#define MAX_UDELAY_MS	1
+#elif HZ <= 200
+#define MAX_UDELAY_MS	5
+#else
+#define MAX_UDELAY_MS	(1000 / HZ)
+#endif
+
+#endif /* _ASM_DELAY_H */

arch/mips/include/asm/device.h

@@ -0,0 +1,19 @@
+/*
+ * Arch specific extensions to struct device
+ *
+ * This file is released under the GPLv2
+ */
+#ifndef _ASM_MIPS_DEVICE_H
+#define _ASM_MIPS_DEVICE_H
+
+struct dma_map_ops;
+
+struct dev_archdata {
+	/* DMA operations on that device */
+	struct dma_map_ops *dma_ops;
+};
+
+struct pdev_archdata {
+};
+
+#endif /* _ASM_MIPS_DEVICE_H*/

arch/mips/include/asm/div64.h

@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2000, 2004  Maciej W. Rozycki
+ * Copyright (C) 2003, 07 Ralf Baechle (ralf@linux-mips.org)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_DIV64_H
+#define __ASM_DIV64_H
+
+#include <asm-generic/div64.h>
+
+#if BITS_PER_LONG == 64
+
+#include <linux/types.h>
+
+/*
+ * No traps on overflows for any of these...
+ */
+
+#define __div64_32(n, base)						\
+({									\
+	unsigned long __cf, __tmp, __tmp2, __i;				\
+	unsigned long __quot32, __mod32;				\
+	unsigned long __high, __low;					\
+	unsigned long long __n;						\
+									\
+	__high = *__n >> 32;						\
+	__low = __n;							\
+	__asm__(							\
+	"	.set	push					\n"	\
+	"	.set	noat					\n"	\
+	"	.set	noreorder				\n"	\
+	"	move	%2, $0					\n"	\
+	"	move	%3, $0					\n"	\
+	"	b	1f					\n"	\
+	"	 li	%4, 0x21				\n"	\
+	"0:							\n"	\
+	"	sll	$1, %0, 0x1				\n"	\
+	"	srl	%3, %0, 0x1f				\n"	\
+	"	or	%0, $1, %5				\n"	\
+	"	sll	%1, %1, 0x1				\n"	\
+	"	sll	%2, %2, 0x1				\n"	\
+	"1:							\n"	\
+	"	bnez	%3, 2f					\n"	\
+	"	 sltu	%5, %0, %z6				\n"	\
+	"	bnez	%5, 3f					\n"	\
+	"2:							\n"	\
+	"	 addiu	%4, %4, -1				\n"	\
+	"	subu	%0, %0, %z6				\n"	\
+	"	addiu	%2, %2, 1				\n"	\
+	"3:							\n"	\
+	"	bnez	%4, 0b\n\t"					\
+	"	 srl	%5, %1, 0x1f\n\t"				\
+	"	.set	pop"						\
+	: "=&r" (__mod32), "=&r" (__tmp),				\
+	  "=&r" (__quot32), "=&r" (__cf),				\
+	  "=&r" (__i), "=&r" (__tmp2)					\
+	: "Jr" (base), "0" (__high), "1" (__low));			\
+									\
+	(__n) = __quot32;						\
+	__mod32;							\
+})
+
+#endif /* BITS_PER_LONG == 64 */
+
+#endif /* __ASM_DIV64_H */

arch/mips/include/asm/dma-coherence.h

@@ -0,0 +1,24 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2006  Ralf Baechle <ralf@linux-mips.org>
+ *
+ */
+#ifndef __ASM_DMA_COHERENCE_H
+#define __ASM_DMA_COHERENCE_H
+
+#ifdef CONFIG_DMA_MAYBE_COHERENT
+extern int coherentio;
+extern int hw_coherentio;
+#else
+#ifdef CONFIG_DMA_COHERENT
+#define coherentio	1
+#else
+#define coherentio	0
+#endif
+#define hw_coherentio	0
+#endif /* CONFIG_DMA_MAYBE_COHERENT */
+
+#endif

arch/mips/include/asm/dma-mapping.h

@@ -0,0 +1,104 @@
+#ifndef _ASM_DMA_MAPPING_H
+#define _ASM_DMA_MAPPING_H
+
+#include <asm/scatterlist.h>
+#include <asm/dma-coherence.h>
+#include <asm/cache.h>
+#include <asm-generic/dma-coherent.h>
+
+#ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */
+#include <dma-coherence.h>
+#endif
+
+extern struct dma_map_ops *mips_dma_map_ops;
+
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+	if (dev && dev->archdata.dma_ops)
+		return dev->archdata.dma_ops;
+	else
+		return mips_dma_map_ops;
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return 0;
+
+	return addr + size <= *dev->dma_mask;
+}
+
+static inline void dma_mark_clean(void *addr, size_t size) {}
+
+#include <asm-generic/dma-mapping-common.h>
+
+static inline int dma_supported(struct device *dev, u64 mask)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+	return ops->dma_supported(dev, mask);
+}
+
+static inline int dma_mapping_error(struct device *dev, u64 mask)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	debug_dma_mapping_error(dev, mask);
+	return ops->mapping_error(dev, mask);
+}
+
+static inline int
+dma_set_mask(struct device *dev, u64 mask)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	if(!dev->dma_mask || !dma_supported(dev, mask))
+		return -EIO;
+
+	if (ops->set_dma_mask)
+		return ops->set_dma_mask(dev, mask);
+
+	*dev->dma_mask = mask;
+
+	return 0;
+}
+
+extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+	       enum dma_data_direction direction);
+
+#define dma_alloc_coherent(d,s,h,f)	dma_alloc_attrs(d,s,h,f,NULL)
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+				    dma_addr_t *dma_handle, gfp_t gfp,
+				    struct dma_attrs *attrs)
+{
+	void *ret;
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	ret = ops->alloc(dev, size, dma_handle, gfp, attrs);
+
+	debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
+
+	return ret;
+}
+
+#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+				  void *vaddr, dma_addr_t dma_handle,
+				  struct dma_attrs *attrs)
+{
+	struct dma_map_ops *ops = get_dma_ops(dev);
+
+	ops->free(dev, size, vaddr, dma_handle, attrs);
+
+	debug_dma_free_coherent(dev, size, vaddr, dma_handle);
+}
+
+
+void *dma_alloc_noncoherent(struct device *dev, size_t size,
+			   dma_addr_t *dma_handle, gfp_t flag);
+
+void dma_free_noncoherent(struct device *dev, size_t size,
+			 void *vaddr, dma_addr_t dma_handle);
+
+#endif /* _ASM_DMA_MAPPING_H */

arch/mips/include/asm/dma.h

@@ -0,0 +1,317 @@
+/*
+ * linux/include/asm/dma.h: Defines for using and allocating dma channels.
+ * Written by Hennus Bergman, 1992.
+ * High DMA channel support & info by Hannu Savolainen
+ * and John Boyd, Nov. 1992.
+ *
+ * NOTE: all this is true *only* for ISA/EISA expansions on Mips boards
+ * and can only be used for expansion cards. Onboard DMA controllers, such
+ * as the R4030 on Jazz boards behave totally different!
+ */
+
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <asm/io.h>			/* need byte IO */
+#include <linux/spinlock.h>		/* And spinlocks */
+#include <linux/delay.h>
+
+
+#ifdef HAVE_REALLY_SLOW_DMA_CONTROLLER
+#define dma_outb	outb_p
+#else
+#define dma_outb	outb
+#endif
+
+#define dma_inb		inb
+
+/*
+ * NOTES about DMA transfers:
+ *
+ *  controller 1: channels 0-3, byte operations, ports 00-1F
+ *  controller 2: channels 4-7, word operations, ports C0-DF
+ *
+ *  - ALL registers are 8 bits only, regardless of transfer size
+ *  - channel 4 is not used - cascades 1 into 2.
+ *  - channels 0-3 are byte - addresses/counts are for physical bytes
+ *  - channels 5-7 are word - addresses/counts are for physical words
+ *  - transfers must not cross physical 64K (0-3) or 128K (5-7) boundaries
+ *  - transfer count loaded to registers is 1 less than actual count
+ *  - controller 2 offsets are all even (2x offsets for controller 1)
+ *  - page registers for 5-7 don't use data bit 0, represent 128K pages
+ *  - page registers for 0-3 use bit 0, represent 64K pages
+ *
+ * DMA transfers are limited to the lower 16MB of _physical_ memory.
+ * Note that addresses loaded into registers must be _physical_ addresses,
+ * not logical addresses (which may differ if paging is active).
+ *
+ *  Address mapping for channels 0-3:
+ *
+ *   A23 ... A16 A15 ... A8  A7 ... A0	  (Physical addresses)
+ *    |	 ...  |	  |  ... |   |	... |
+ *    |	 ...  |	  |  ... |   |	... |
+ *    |	 ...  |	  |  ... |   |	... |
+ *   P7	 ...  P0  A7 ... A0  A7 ... A0
+ * |	Page	| Addr MSB | Addr LSB |	  (DMA registers)
+ *
+ *  Address mapping for channels 5-7:
+ *
+ *   A23 ... A17 A16 A15 ... A9 A8 A7 ... A1 A0	   (Physical addresses)
+ *    |	 ...  |	  \   \	  ... \	 \  \  ... \  \
+ *    |	 ...  |	   \   \   ... \  \  \	... \  (not used)
+ *    |	 ...  |	    \	\   ... \  \  \	 ... \
+ *   P7	 ...  P1 (0) A7 A6  ... A0 A7 A6 ... A0
+ * |	  Page	    |  Addr MSB	  |  Addr LSB  |   (DMA registers)
+ *
+ * Again, channels 5-7 transfer _physical_ words (16 bits), so addresses
+ * and counts _must_ be word-aligned (the lowest address bit is _ignored_ at
+ * the hardware level, so odd-byte transfers aren't possible).
+ *
+ * Transfer count (_not # bytes_) is limited to 64K, represented as actual
+ * count - 1 : 64K => 0xFFFF, 1 => 0x0000.  Thus, count is always 1 or more,
+ * and up to 128K bytes may be transferred on channels 5-7 in one operation.
+ *
+ */
+
+#ifndef CONFIG_GENERIC_ISA_DMA_SUPPORT_BROKEN
+#define MAX_DMA_CHANNELS	8
+#endif
+
+/*
+ * The maximum address in KSEG0 that we can perform a DMA transfer to on this
+ * platform.  This describes only the PC style part of the DMA logic like on
+ * Deskstations or Acer PICA but not the much more versatile DMA logic used
+ * for the local devices on Acer PICA or Magnums.
+ */
+#if defined(CONFIG_SGI_IP22) || defined(CONFIG_SGI_IP28)
+/* don't care; ISA bus master won't work, ISA slave DMA supports 32bit addr */
+#define MAX_DMA_ADDRESS		PAGE_OFFSET
+#else
+#define MAX_DMA_ADDRESS		(PAGE_OFFSET + 0x01000000)
+#endif
+#define MAX_DMA_PFN		PFN_DOWN(virt_to_phys((void *)MAX_DMA_ADDRESS))
+
+#ifndef MAX_DMA32_PFN
+#define MAX_DMA32_PFN		(1UL << (32 - PAGE_SHIFT))
+#endif
+
+/* 8237 DMA controllers */
+#define IO_DMA1_BASE	0x00	/* 8 bit slave DMA, channels 0..3 */
+#define IO_DMA2_BASE	0xC0	/* 16 bit master DMA, ch 4(=slave input)..7 */
+
+/* DMA controller registers */
+#define DMA1_CMD_REG		0x08	/* command register (w) */
+#define DMA1_STAT_REG		0x08	/* status register (r) */
+#define DMA1_REQ_REG		0x09	/* request register (w) */
+#define DMA1_MASK_REG		0x0A	/* single-channel mask (w) */
+#define DMA1_MODE_REG		0x0B	/* mode register (w) */
+#define DMA1_CLEAR_FF_REG	0x0C	/* clear pointer flip-flop (w) */
+#define DMA1_TEMP_REG		0x0D	/* Temporary Register (r) */
+#define DMA1_RESET_REG		0x0D	/* Master Clear (w) */
+#define DMA1_CLR_MASK_REG	0x0E	/* Clear Mask */
+#define DMA1_MASK_ALL_REG	0x0F	/* all-channels mask (w) */
+
+#define DMA2_CMD_REG		0xD0	/* command register (w) */
+#define DMA2_STAT_REG		0xD0	/* status register (r) */
+#define DMA2_REQ_REG		0xD2	/* request register (w) */
+#define DMA2_MASK_REG		0xD4	/* single-channel mask (w) */
+#define DMA2_MODE_REG		0xD6	/* mode register (w) */
+#define DMA2_CLEAR_FF_REG	0xD8	/* clear pointer flip-flop (w) */
+#define DMA2_TEMP_REG		0xDA	/* Temporary Register (r) */
+#define DMA2_RESET_REG		0xDA	/* Master Clear (w) */
+#define DMA2_CLR_MASK_REG	0xDC	/* Clear Mask */
+#define DMA2_MASK_ALL_REG	0xDE	/* all-channels mask (w) */
+
+#define DMA_ADDR_0		0x00	/* DMA address registers */
+#define DMA_ADDR_1		0x02
+#define DMA_ADDR_2		0x04
+#define DMA_ADDR_3		0x06
+#define DMA_ADDR_4		0xC0
+#define DMA_ADDR_5		0xC4
+#define DMA_ADDR_6		0xC8
+#define DMA_ADDR_7		0xCC
+
+#define DMA_CNT_0		0x01	/* DMA count registers */
+#define DMA_CNT_1		0x03
+#define DMA_CNT_2		0x05
+#define DMA_CNT_3		0x07
+#define DMA_CNT_4		0xC2
+#define DMA_CNT_5		0xC6
+#define DMA_CNT_6		0xCA
+#define DMA_CNT_7		0xCE
+
+#define DMA_PAGE_0		0x87	/* DMA page registers */
+#define DMA_PAGE_1		0x83
+#define DMA_PAGE_2		0x81
+#define DMA_PAGE_3		0x82
+#define DMA_PAGE_5		0x8B
+#define DMA_PAGE_6		0x89
+#define DMA_PAGE_7		0x8A
+
+#define DMA_MODE_READ	0x44	/* I/O to memory, no autoinit, increment, single mode */
+#define DMA_MODE_WRITE	0x48	/* memory to I/O, no autoinit, increment, single mode */
+#define DMA_MODE_CASCADE 0xC0	/* pass thru DREQ->HRQ, DACK<-HLDA only */
+
+#define DMA_AUTOINIT	0x10
+
+extern spinlock_t  dma_spin_lock;
+
+static __inline__ unsigned long claim_dma_lock(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&dma_spin_lock, flags);
+	return flags;
+}
+
+static __inline__ void release_dma_lock(unsigned long flags)
+{
+	spin_unlock_irqrestore(&dma_spin_lock, flags);
+}
+
+/* enable/disable a specific DMA channel */
+static __inline__ void enable_dma(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(dmanr,	 DMA1_MASK_REG);
+	else
+		dma_outb(dmanr & 3,  DMA2_MASK_REG);
+}
+
+static __inline__ void disable_dma(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(dmanr | 4,  DMA1_MASK_REG);
+	else
+		dma_outb((dmanr & 3) | 4,  DMA2_MASK_REG);
+}
+
+/* Clear the 'DMA Pointer Flip Flop'.
+ * Write 0 for LSB/MSB, 1 for MSB/LSB access.
+ * Use this once to initialize the FF to a known state.
+ * After that, keep track of it. :-)
+ * --- In order to do that, the DMA routines below should ---
+ * --- only be used while holding the DMA lock ! ---
+ */
+static __inline__ void clear_dma_ff(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(0,  DMA1_CLEAR_FF_REG);
+	else
+		dma_outb(0,  DMA2_CLEAR_FF_REG);
+}
+
+/* set mode (above) for a specific DMA channel */
+static __inline__ void set_dma_mode(unsigned int dmanr, char mode)
+{
+	if (dmanr<=3)
+		dma_outb(mode | dmanr,	DMA1_MODE_REG);
+	else
+		dma_outb(mode | (dmanr&3),  DMA2_MODE_REG);
+}
+
+/* Set only the page register bits of the transfer address.
+ * This is used for successive transfers when we know the contents of
+ * the lower 16 bits of the DMA current address register, but a 64k boundary
+ * may have been crossed.
+ */
+static __inline__ void set_dma_page(unsigned int dmanr, char pagenr)
+{
+	switch(dmanr) {
+		case 0:
+			dma_outb(pagenr, DMA_PAGE_0);
+			break;
+		case 1:
+			dma_outb(pagenr, DMA_PAGE_1);
+			break;
+		case 2:
+			dma_outb(pagenr, DMA_PAGE_2);
+			break;
+		case 3:
+			dma_outb(pagenr, DMA_PAGE_3);
+			break;
+		case 5:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_5);
+			break;
+		case 6:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_6);
+			break;
+		case 7:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_7);
+			break;
+	}
+}
+
+
+/* Set transfer address & page bits for specific DMA channel.
+ * Assumes dma flipflop is clear.
+ */
+static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int a)
+{
+	set_dma_page(dmanr, a>>16);
+	if (dmanr <= 3)	 {
+	    dma_outb( a & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
+	    dma_outb( (a>>8) & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
+	}  else	 {
+	    dma_outb( (a>>1) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
+	    dma_outb( (a>>9) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
+	}
+}
+
+
+/* Set transfer size (max 64k for DMA0..3, 128k for DMA5..7) for
+ * a specific DMA channel.
+ * You must ensure the parameters are valid.
+ * NOTE: from a manual: "the number of transfers is one more
+ * than the initial word count"! This is taken into account.
+ * Assumes dma flip-flop is clear.
+ * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7.
+ */
+static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
+{
+	count--;
+	if (dmanr <= 3)	 {
+	    dma_outb( count & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
+	    dma_outb( (count>>8) & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
+	} else {
+	    dma_outb( (count>>1) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
+	    dma_outb( (count>>9) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
+	}
+}
+
+
+/* Get DMA residue count. After a DMA transfer, this
+ * should return zero. Reading this while a DMA transfer is
+ * still in progress will return unpredictable results.
+ * If called before the channel has been used, it may return 1.
+ * Otherwise, it returns the number of _bytes_ left to transfer.
+ *
+ * Assumes DMA flip-flop is clear.
+ */
+static __inline__ int get_dma_residue(unsigned int dmanr)
+{
+	unsigned int io_port = (dmanr<=3)? ((dmanr&3)<<1) + 1 + IO_DMA1_BASE
+					 : ((dmanr&3)<<2) + 2 + IO_DMA2_BASE;
+
+	/* using short to get 16-bit wrap around */
+	unsigned short count;
+
+	count = 1 + dma_inb(io_port);
+	count += dma_inb(io_port) << 8;
+
+	return (dmanr<=3)? count : (count<<1);
+}
+
+
+/* These are in kernel/dma.c: */
+extern int request_dma(unsigned int dmanr, const char * device_id);	/* reserve a DMA channel */
+extern void free_dma(unsigned int dmanr);	/* release it again */
+
+/* From PCI */
+
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy	(0)
+#endif
+
+#endif /* _ASM_DMA_H */

arch/mips/include/asm/ds1287.h

@@ -0,0 +1,27 @@
+/*
+ *  DS1287 timer functions.
+ *
+ *  Copyright (C) 2008  Yoichi Yuasa <yuasa@linux-mips.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef __ASM_DS1287_H
+#define __ASM_DS1287_H
+
+extern int ds1287_timer_state(void);
+extern void ds1287_set_base_clock(unsigned int clock);
+extern int ds1287_clockevent_init(int irq);
+
+#endif

arch/mips/include/asm/dsp.h

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2005 Mips Technologies
+ * Author: Chris Dearman, chris@mips.com derived from fpu.h
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#ifndef _ASM_DSP_H
+#define _ASM_DSP_H
+
+#include <asm/cpu.h>
+#include <asm/cpu-features.h>
+#include <asm/hazards.h>
+#include <asm/mipsregs.h>
+
+#define DSP_DEFAULT	0x00000000
+#define DSP_MASK	0x3f
+
+#define __enable_dsp_hazard()						\
+do {									\
+	asm("_ehb");							\
+} while (0)
+
+static inline void __init_dsp(void)
+{
+	mthi1(0);
+	mtlo1(0);
+	mthi2(0);
+	mtlo2(0);
+	mthi3(0);
+	mtlo3(0);
+	wrdsp(DSP_DEFAULT, DSP_MASK);
+}
+
+static inline void init_dsp(void)
+{
+	if (cpu_has_dsp)
+		__init_dsp();
+}
+
+#define __save_dsp(tsk)							\
+do {									\
+	tsk->thread.dsp.dspr[0] = mfhi1();				\
+	tsk->thread.dsp.dspr[1] = mflo1();				\
+	tsk->thread.dsp.dspr[2] = mfhi2();				\
+	tsk->thread.dsp.dspr[3] = mflo2();				\
+	tsk->thread.dsp.dspr[4] = mfhi3();				\
+	tsk->thread.dsp.dspr[5] = mflo3();				\
+	tsk->thread.dsp.dspcontrol = rddsp(DSP_MASK);			\
+} while (0)
+
+#define save_dsp(tsk)							\
+do {									\
+	if (cpu_has_dsp)						\
+		__save_dsp(tsk);					\
+} while (0)
+
+#define __restore_dsp(tsk)						\
+do {									\
+	mthi1(tsk->thread.dsp.dspr[0]);					\
+	mtlo1(tsk->thread.dsp.dspr[1]);					\
+	mthi2(tsk->thread.dsp.dspr[2]);					\
+	mtlo2(tsk->thread.dsp.dspr[3]);					\
+	mthi3(tsk->thread.dsp.dspr[4]);					\
+	mtlo3(tsk->thread.dsp.dspr[5]);					\
+	wrdsp(tsk->thread.dsp.dspcontrol, DSP_MASK);			\
+} while (0)
+
+#define restore_dsp(tsk)						\
+do {									\
+	if (cpu_has_dsp)						\
+		__restore_dsp(tsk);					\
+} while (0)
+
+#define __get_dsp_regs(tsk)						\
+({									\
+	if (tsk == current)						\
+		__save_dsp(current);					\
+									\
+	tsk->thread.dsp.dspr;						\
+})
+
+#endif /* _ASM_DSP_H */

arch/mips/include/asm/edac.h

@@ -0,0 +1,34 @@
+#ifndef ASM_EDAC_H
+#define ASM_EDAC_H
+
+/* ECC atomic, DMA, SMP and interrupt safe scrub function */
+
+static inline void atomic_scrub(void *va, u32 size)
+{
+	unsigned long *virt_addr = va;
+	unsigned long temp;
+	u32 i;
+
+	for (i = 0; i < size / sizeof(unsigned long); i++) {
+		/*
+		 * Very carefully read and write to memory atomically
+		 * so we are interrupt, DMA and SMP safe.
+		 *
+		 * Intel: asm("lock; addl $0, %0"::"m"(*virt_addr));
+		 */
+
+		__asm__ __volatile__ (
+		"	.set	mips2					\n"
+		"1:	ll	%0, %1		# atomic_scrub		\n"
+		"	addu	%0, $0					\n"
+		"	sc	%0, %1					\n"
+		"	beqz	%0, 1b					\n"
+		"	.set	mips0					\n"
+		: "=&r" (temp), "=m" (*virt_addr)
+		: "m" (*virt_addr));
+
+		virt_addr++;
+	}
+}
+
+#endif

arch/mips/include/asm/elf.h

@@ -0,0 +1,393 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Much of this is taken from binutils and GNU libc ...
+ */
+#ifndef _ASM_ELF_H
+#define _ASM_ELF_H
+
+
+/* ELF header e_flags defines. */
+/* MIPS architecture level. */
+#define EF_MIPS_ARCH_1		0x00000000	/* -mips1 code.	 */
+#define EF_MIPS_ARCH_2		0x10000000	/* -mips2 code.	 */
+#define EF_MIPS_ARCH_3		0x20000000	/* -mips3 code.	 */
+#define EF_MIPS_ARCH_4		0x30000000	/* -mips4 code.	 */
+#define EF_MIPS_ARCH_5		0x40000000	/* -mips5 code.	 */
+#define EF_MIPS_ARCH_32		0x50000000	/* MIPS32 code.	 */
+#define EF_MIPS_ARCH_64		0x60000000	/* MIPS64 code.	 */
+#define EF_MIPS_ARCH_32R2	0x70000000	/* MIPS32 R2 code.  */
+#define EF_MIPS_ARCH_64R2	0x80000000	/* MIPS64 R2 code.  */
+
+/* The ABI of a file. */
+#define EF_MIPS_ABI_O32		0x00001000	/* O32 ABI.  */
+#define EF_MIPS_ABI_O64		0x00002000	/* O32 extended for 64 bit.  */
+
+#define PT_MIPS_REGINFO		0x70000000
+#define PT_MIPS_RTPROC		0x70000001
+#define PT_MIPS_OPTIONS		0x70000002
+
+/* Flags in the e_flags field of the header */
+#define EF_MIPS_NOREORDER	0x00000001
+#define EF_MIPS_PIC		0x00000002
+#define EF_MIPS_CPIC		0x00000004
+#define EF_MIPS_ABI2		0x00000020
+#define EF_MIPS_OPTIONS_FIRST	0x00000080
+#define EF_MIPS_32BITMODE	0x00000100
+#define EF_MIPS_FP64		0x00000200
+#define EF_MIPS_ABI		0x0000f000
+#define EF_MIPS_ARCH		0xf0000000
+
+#define DT_MIPS_RLD_VERSION	0x70000001
+#define DT_MIPS_TIME_STAMP	0x70000002
+#define DT_MIPS_ICHECKSUM	0x70000003
+#define DT_MIPS_IVERSION	0x70000004
+#define DT_MIPS_FLAGS		0x70000005
+	#define RHF_NONE	0x00000000
+	#define RHF_HARDWAY	0x00000001
+	#define RHF_NOTPOT	0x00000002
+	#define RHF_SGI_ONLY	0x00000010
+#define DT_MIPS_BASE_ADDRESS	0x70000006
+#define DT_MIPS_CONFLICT	0x70000008
+#define DT_MIPS_LIBLIST		0x70000009
+#define DT_MIPS_LOCAL_GOTNO	0x7000000a
+#define DT_MIPS_CONFLICTNO	0x7000000b
+#define DT_MIPS_LIBLISTNO	0x70000010
+#define DT_MIPS_SYMTABNO	0x70000011
+#define DT_MIPS_UNREFEXTNO	0x70000012
+#define DT_MIPS_GOTSYM		0x70000013
+#define DT_MIPS_HIPAGENO	0x70000014
+#define DT_MIPS_RLD_MAP		0x70000016
+
+#define R_MIPS_NONE		0
+#define R_MIPS_16		1
+#define R_MIPS_32		2
+#define R_MIPS_REL32		3
+#define R_MIPS_26		4
+#define R_MIPS_HI16		5
+#define R_MIPS_LO16		6
+#define R_MIPS_GPREL16		7
+#define R_MIPS_LITERAL		8
+#define R_MIPS_GOT16		9
+#define R_MIPS_PC16		10
+#define R_MIPS_CALL16		11
+#define R_MIPS_GPREL32		12
+/* The remaining relocs are defined on Irix, although they are not
+   in the MIPS ELF ABI.	 */
+#define R_MIPS_UNUSED1		13
+#define R_MIPS_UNUSED2		14
+#define R_MIPS_UNUSED3		15
+#define R_MIPS_SHIFT5		16
+#define R_MIPS_SHIFT6		17
+#define R_MIPS_64		18
+#define R_MIPS_GOT_DISP		19
+#define R_MIPS_GOT_PAGE		20
+#define R_MIPS_GOT_OFST		21
+/*
+ * The following two relocation types are specified in the MIPS ABI
+ * conformance guide version 1.2 but not yet in the psABI.
+ */
+#define R_MIPS_GOTHI16		22
+#define R_MIPS_GOTLO16		23
+#define R_MIPS_SUB		24
+#define R_MIPS_INSERT_A		25
+#define R_MIPS_INSERT_B		26
+#define R_MIPS_DELETE		27
+#define R_MIPS_HIGHER		28
+#define R_MIPS_HIGHEST		29
+/*
+ * The following two relocation types are specified in the MIPS ABI
+ * conformance guide version 1.2 but not yet in the psABI.
+ */
+#define R_MIPS_CALLHI16		30
+#define R_MIPS_CALLLO16		31
+/*
+ * This range is reserved for vendor specific relocations.
+ */
+#define R_MIPS_LOVENDOR		100
+#define R_MIPS_HIVENDOR		127
+
+#define SHN_MIPS_ACCOMON	0xff00		/* Allocated common symbols */
+#define SHN_MIPS_TEXT		0xff01		/* Allocated test symbols.  */
+#define SHN_MIPS_DATA		0xff02		/* Allocated data symbols.  */
+#define SHN_MIPS_SCOMMON	0xff03		/* Small common symbols */
+#define SHN_MIPS_SUNDEFINED	0xff04		/* Small undefined symbols */
+
+#define SHT_MIPS_LIST		0x70000000
+#define SHT_MIPS_CONFLICT	0x70000002
+#define SHT_MIPS_GPTAB		0x70000003
+#define SHT_MIPS_UCODE		0x70000004
+#define SHT_MIPS_DEBUG		0x70000005
+#define SHT_MIPS_REGINFO	0x70000006
+#define SHT_MIPS_PACKAGE	0x70000007
+#define SHT_MIPS_PACKSYM	0x70000008
+#define SHT_MIPS_RELD		0x70000009
+#define SHT_MIPS_IFACE		0x7000000b
+#define SHT_MIPS_CONTENT	0x7000000c
+#define SHT_MIPS_OPTIONS	0x7000000d
+#define SHT_MIPS_SHDR		0x70000010
+#define SHT_MIPS_FDESC		0x70000011
+#define SHT_MIPS_EXTSYM		0x70000012
+#define SHT_MIPS_DENSE		0x70000013
+#define SHT_MIPS_PDESC		0x70000014
+#define SHT_MIPS_LOCSYM		0x70000015
+#define SHT_MIPS_AUXSYM		0x70000016
+#define SHT_MIPS_OPTSYM		0x70000017
+#define SHT_MIPS_LOCSTR		0x70000018
+#define SHT_MIPS_LINE		0x70000019
+#define SHT_MIPS_RFDESC		0x7000001a
+#define SHT_MIPS_DELTASYM	0x7000001b
+#define SHT_MIPS_DELTAINST	0x7000001c
+#define SHT_MIPS_DELTACLASS	0x7000001d
+#define SHT_MIPS_DWARF		0x7000001e
+#define SHT_MIPS_DELTADECL	0x7000001f
+#define SHT_MIPS_SYMBOL_LIB	0x70000020
+#define SHT_MIPS_EVENTS		0x70000021
+#define SHT_MIPS_TRANSLATE	0x70000022
+#define SHT_MIPS_PIXIE		0x70000023
+#define SHT_MIPS_XLATE		0x70000024
+#define SHT_MIPS_XLATE_DEBUG	0x70000025
+#define SHT_MIPS_WHIRL		0x70000026
+#define SHT_MIPS_EH_REGION	0x70000027
+#define SHT_MIPS_XLATE_OLD	0x70000028
+#define SHT_MIPS_PDR_EXCEPTION	0x70000029
+
+#define SHF_MIPS_GPREL		0x10000000
+#define SHF_MIPS_MERGE		0x20000000
+#define SHF_MIPS_ADDR		0x40000000
+#define SHF_MIPS_STRING		0x80000000
+#define SHF_MIPS_NOSTRIP	0x08000000
+#define SHF_MIPS_LOCAL		0x04000000
+#define SHF_MIPS_NAMES		0x02000000
+#define SHF_MIPS_NODUPES	0x01000000
+
+#ifndef ELF_ARCH
+/* ELF register definitions */
+#define ELF_NGREG	45
+#define ELF_NFPREG	33
+
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+#ifdef CONFIG_32BIT
+
+/*
+ * In order to be sure that we don't attempt to execute an O32 binary which
+ * requires 64 bit FP (FR=1) on a system which does not support it we refuse
+ * to execute any binary which has bits specified by the following macro set
+ * in its ELF header flags.
+ */
+#ifdef CONFIG_MIPS_O32_FP64_SUPPORT
+# define __MIPS_O32_FP64_MUST_BE_ZERO	0
+#else
+# define __MIPS_O32_FP64_MUST_BE_ZERO	EF_MIPS_FP64
+#endif
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(hdr)						\
+({									\
+	int __res = 1;							\
+	struct elfhdr *__h = (hdr);					\
+									\
+	if (__h->e_machine != EM_MIPS)					\
+		__res = 0;						\
+	if (__h->e_ident[EI_CLASS] != ELFCLASS32)			\
+		__res = 0;						\
+	if ((__h->e_flags & EF_MIPS_ABI2) != 0)				\
+		__res = 0;						\
+	if (((__h->e_flags & EF_MIPS_ABI) != 0) &&			\
+	    ((__h->e_flags & EF_MIPS_ABI) != EF_MIPS_ABI_O32))		\
+		__res = 0;						\
+	if (__h->e_flags & __MIPS_O32_FP64_MUST_BE_ZERO)		\
+		__res = 0;						\
+									\
+	__res;								\
+})
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS32
+
+#endif /* CONFIG_32BIT */
+
+#ifdef CONFIG_64BIT
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(hdr)						\
+({									\
+	int __res = 1;							\
+	struct elfhdr *__h = (hdr);					\
+									\
+	if (__h->e_machine != EM_MIPS)					\
+		__res = 0;						\
+	if (__h->e_ident[EI_CLASS] != ELFCLASS64)			\
+		__res = 0;						\
+									\
+	__res;								\
+})
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS64
+
+#endif /* CONFIG_64BIT */
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#ifdef __MIPSEB__
+#define ELF_DATA	ELFDATA2MSB
+#elif defined(__MIPSEL__)
+#define ELF_DATA	ELFDATA2LSB
+#endif
+#define ELF_ARCH	EM_MIPS
+
+#endif /* !defined(ELF_ARCH) */
+
+struct mips_abi;
+
+extern struct mips_abi mips_abi;
+extern struct mips_abi mips_abi_32;
+extern struct mips_abi mips_abi_n32;
+
+#ifdef CONFIG_32BIT
+
+#define SET_PERSONALITY(ex)						\
+do {									\
+	if ((ex).e_flags & EF_MIPS_FP64)				\
+		clear_thread_flag(TIF_32BIT_FPREGS);			\
+	else								\
+		set_thread_flag(TIF_32BIT_FPREGS);			\
+									\
+	if (personality(current->personality) != PER_LINUX)		\
+		set_personality(PER_LINUX);				\
+									\
+	current->thread.abi = &mips_abi;				\
+} while (0)
+
+#endif /* CONFIG_32BIT */
+
+#ifdef CONFIG_64BIT
+
+#ifdef CONFIG_MIPS32_N32
+#define __SET_PERSONALITY32_N32()					\
+	do {								\
+		set_thread_flag(TIF_32BIT_ADDR);			\
+		current->thread.abi = &mips_abi_n32;			\
+	} while (0)
+#else
+#define __SET_PERSONALITY32_N32()					\
+	do { } while (0)
+#endif
+
+#ifdef CONFIG_MIPS32_O32
+#define __SET_PERSONALITY32_O32(ex)					\
+	do {								\
+		set_thread_flag(TIF_32BIT_REGS);			\
+		set_thread_flag(TIF_32BIT_ADDR);			\
+									\
+		if (!((ex).e_flags & EF_MIPS_FP64))			\
+			set_thread_flag(TIF_32BIT_FPREGS);		\
+									\
+		current->thread.abi = &mips_abi_32;			\
+	} while (0)
+#else
+#define __SET_PERSONALITY32_O32(ex)					\
+	do { } while (0)
+#endif
+
+#ifdef CONFIG_MIPS32_COMPAT
+#define __SET_PERSONALITY32(ex)						\
+do {									\
+	if ((((ex).e_flags & EF_MIPS_ABI2) != 0) &&			\
+	     ((ex).e_flags & EF_MIPS_ABI) == 0)				\
+		__SET_PERSONALITY32_N32();				\
+	else								\
+		__SET_PERSONALITY32_O32(ex);                            \
+} while (0)
+#else
+#define __SET_PERSONALITY32(ex) do { } while (0)
+#endif
+
+#define SET_PERSONALITY(ex)						\
+do {									\
+	unsigned int p;							\
+									\
+	clear_thread_flag(TIF_32BIT_REGS);				\
+	clear_thread_flag(TIF_32BIT_FPREGS);				\
+	clear_thread_flag(TIF_32BIT_ADDR);				\
+									\
+	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)			\
+		__SET_PERSONALITY32(ex);				\
+	else								\
+		current->thread.abi = &mips_abi;			\
+									\
+	p = personality(current->personality);				\
+	if (p != PER_LINUX32 && p != PER_LINUX)				\
+		set_personality(PER_LINUX);				\
+} while (0)
+
+#endif /* CONFIG_64BIT */
+
+#define CORE_DUMP_USE_REGSET
+#define ELF_EXEC_PAGESIZE	PAGE_SIZE
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this cpu supports.  This could be done in userspace,
+   but it's not easy, and we've already done it here.  */
+
+#define ELF_HWCAP	(0)
+
+/*
+ * This yields a string that ld.so will use to load implementation
+ * specific libraries for optimization.	 This is more specific in
+ * intent than poking at uname or /proc/cpuinfo.
+ */
+
+#define ELF_PLATFORM  __elf_platform
+extern const char *__elf_platform;
+
+/*
+ * See comments in asm-alpha/elf.h, this is the same thing
+ * on the MIPS.
+ */
+#define ELF_PLAT_INIT(_r, load_addr)	do { \
+	_r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0;	\
+	_r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0;	\
+	_r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0;	\
+	_r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0;	\
+	_r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0;	\
+	_r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0;	\
+	_r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0;	\
+	_r->regs[30] = _r->regs[31] = 0;				\
+} while (0)
+
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.	We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.	*/
+
+#ifndef ELF_ET_DYN_BASE
+#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+#endif
+
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+struct linux_binprm;
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+				       int uses_interp);
+
+struct mm_struct;
+extern unsigned long arch_randomize_brk(struct mm_struct *mm);
+#define arch_randomize_brk arch_randomize_brk
+
+#endif /* _ASM_ELF_H */

arch/mips/include/asm/emma/emma2rh.h

@@ -0,0 +1,261 @@
+/*
+ *  Copyright (C) NEC Electronics Corporation 2005-2006
+ *
+ *  This file based on include/asm-mips/ddb5xxx/ddb5xxx.h
+ *	    Copyright 2001 MontaVista Software Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef __ASM_EMMA_EMMA2RH_H
+#define __ASM_EMMA_EMMA2RH_H
+
+#include <irq.h>
+
+/*
+ * EMMA2RH registers
+ */
+#define REGBASE 0x10000000
+
+#define EMMA2RH_BHIF_STRAP_0	(0x000010+REGBASE)
+#define EMMA2RH_BHIF_INT_ST_0	(0x000030+REGBASE)
+#define EMMA2RH_BHIF_INT_ST_1	(0x000034+REGBASE)
+#define EMMA2RH_BHIF_INT_ST_2	(0x000038+REGBASE)
+#define EMMA2RH_BHIF_INT_EN_0	(0x000040+REGBASE)
+#define EMMA2RH_BHIF_INT_EN_1	(0x000044+REGBASE)
+#define EMMA2RH_BHIF_INT_EN_2	(0x000048+REGBASE)
+#define EMMA2RH_BHIF_INT1_EN_0	(0x000050+REGBASE)
+#define EMMA2RH_BHIF_INT1_EN_1	(0x000054+REGBASE)
+#define EMMA2RH_BHIF_INT1_EN_2	(0x000058+REGBASE)
+#define EMMA2RH_BHIF_SW_INT	(0x000070+REGBASE)
+#define EMMA2RH_BHIF_SW_INT_EN	(0x000080+REGBASE)
+#define EMMA2RH_BHIF_SW_INT_CLR (0x000090+REGBASE)
+#define EMMA2RH_BHIF_MAIN_CTRL	(0x0000b4+REGBASE)
+#define EMMA2RH_BHIF_EXCEPT_VECT_BASE_ADDRESS	(0x0000c0+REGBASE)
+#define EMMA2RH_GPIO_DIR	(0x110d20+REGBASE)
+#define EMMA2RH_GPIO_INT_ST	(0x110d30+REGBASE)
+#define EMMA2RH_GPIO_INT_MASK	(0x110d3c+REGBASE)
+#define EMMA2RH_GPIO_INT_MODE	(0x110d48+REGBASE)
+#define EMMA2RH_GPIO_INT_CND_A	(0x110d54+REGBASE)
+#define EMMA2RH_GPIO_INT_CND_B	(0x110d60+REGBASE)
+#define EMMA2RH_PBRD_INT_EN	(0x100010+REGBASE)
+#define EMMA2RH_PBRD_CLKSEL	(0x100028+REGBASE)
+#define EMMA2RH_PFUR0_BASE	(0x101000+REGBASE)
+#define EMMA2RH_PFUR1_BASE	(0x102000+REGBASE)
+#define EMMA2RH_PFUR2_BASE	(0x103000+REGBASE)
+#define EMMA2RH_PIIC0_BASE	(0x107000+REGBASE)
+#define EMMA2RH_PIIC1_BASE	(0x108000+REGBASE)
+#define EMMA2RH_PIIC2_BASE	(0x109000+REGBASE)
+#define EMMA2RH_PCI_CONTROL	(0x200000+REGBASE)
+#define EMMA2RH_PCI_ARBIT_CTR	(0x200004+REGBASE)
+#define EMMA2RH_PCI_IWIN0_CTR	(0x200010+REGBASE)
+#define EMMA2RH_PCI_IWIN1_CTR	(0x200014+REGBASE)
+#define EMMA2RH_PCI_INIT_ESWP	(0x200018+REGBASE)
+#define EMMA2RH_PCI_INT		(0x200020+REGBASE)
+#define EMMA2RH_PCI_INT_EN	(0x200024+REGBASE)
+#define EMMA2RH_PCI_TWIN_CTR	(0x200030+REGBASE)
+#define EMMA2RH_PCI_TWIN_BADR	(0x200034+REGBASE)
+#define EMMA2RH_PCI_TWIN0_DADR	(0x200038+REGBASE)
+#define EMMA2RH_PCI_TWIN1_DADR	(0x20003c+REGBASE)
+
+/*
+ *  Memory map (physical address)
+ *
+ *  Note most of the following address must be properly aligned by the
+ *  corresponding size.	 For example, if PCI_IO_SIZE is 16MB, then
+ *  PCI_IO_BASE must be aligned along 16MB boundary.
+ */
+
+/* the actual ram size is detected at run-time */
+#define EMMA2RH_RAM_BASE	0x00000000
+#define EMMA2RH_RAM_SIZE	0x10000000	/* less than 256MB */
+
+#define EMMA2RH_IO_BASE		0x10000000
+#define EMMA2RH_IO_SIZE		0x01000000	/* 16 MB */
+
+#define EMMA2RH_GENERALIO_BASE	0x11000000
+#define EMMA2RH_GENERALIO_SIZE	0x01000000	/* 16 MB */
+
+#define EMMA2RH_PCI_IO_BASE	0x12000000
+#define EMMA2RH_PCI_IO_SIZE	0x02000000	/* 32 MB */
+
+#define EMMA2RH_PCI_MEM_BASE	0x14000000
+#define EMMA2RH_PCI_MEM_SIZE	0x08000000	/* 128 MB */
+
+#define EMMA2RH_ROM_BASE	0x1c000000
+#define EMMA2RH_ROM_SIZE	0x04000000	/* 64 MB */
+
+#define EMMA2RH_PCI_CONFIG_BASE EMMA2RH_PCI_IO_BASE
+#define EMMA2RH_PCI_CONFIG_SIZE EMMA2RH_PCI_IO_SIZE
+
+#define NUM_EMMA2RH_IRQ		96
+
+#define EMMA2RH_IRQ_BASE	(MIPS_CPU_IRQ_BASE + 8)
+
+/*
+ * emma2rh irq defs
+ */
+
+#define EMMA2RH_IRQ_INT(n)	(EMMA2RH_IRQ_BASE + (n))
+
+#define EMMA2RH_IRQ_PFUR0	EMMA2RH_IRQ_INT(49)
+#define EMMA2RH_IRQ_PFUR1	EMMA2RH_IRQ_INT(50)
+#define EMMA2RH_IRQ_PFUR2	EMMA2RH_IRQ_INT(51)
+#define EMMA2RH_IRQ_PIIC0	EMMA2RH_IRQ_INT(56)
+#define EMMA2RH_IRQ_PIIC1	EMMA2RH_IRQ_INT(57)
+#define EMMA2RH_IRQ_PIIC2	EMMA2RH_IRQ_INT(58)
+
+/*
+ *  EMMA2RH Register Access
+ */
+
+#define EMMA2RH_BASE (0xa0000000)
+
+static inline void emma2rh_sync(void)
+{
+	volatile u32 *p = (volatile u32 *)0xbfc00000;
+	(void)(*p);
+}
+
+static inline void emma2rh_out32(u32 offset, u32 val)
+{
+	*(volatile u32 *)(EMMA2RH_BASE | offset) = val;
+	emma2rh_sync();
+}
+
+static inline u32 emma2rh_in32(u32 offset)
+{
+	u32 val = *(volatile u32 *)(EMMA2RH_BASE | offset);
+	return val;
+}
+
+static inline void emma2rh_out16(u32 offset, u16 val)
+{
+	*(volatile u16 *)(EMMA2RH_BASE | offset) = val;
+	emma2rh_sync();
+}
+
+static inline u16 emma2rh_in16(u32 offset)
+{
+	u16 val = *(volatile u16 *)(EMMA2RH_BASE | offset);
+	return val;
+}
+
+static inline void emma2rh_out8(u32 offset, u8 val)
+{
+	*(volatile u8 *)(EMMA2RH_BASE | offset) = val;
+	emma2rh_sync();
+}
+
+static inline u8 emma2rh_in8(u32 offset)
+{
+	u8 val = *(volatile u8 *)(EMMA2RH_BASE | offset);
+	return val;
+}
+
+/**
+ * IIC registers map
+ **/
+
+/*---------------------------------------------------------------------------*/
+/* CNT - Control register (00H R/W)					     */
+/*---------------------------------------------------------------------------*/
+#define SPT	    0x00000001
+#define STT	    0x00000002
+#define ACKE	    0x00000004
+#define WTIM	    0x00000008
+#define SPIE	    0x00000010
+#define WREL	    0x00000020
+#define LREL	    0x00000040
+#define IICE	    0x00000080
+#define CNT_RESERVED	0x000000ff	/* reserved bit 0 */
+
+#define I2C_EMMA_START	    (IICE | STT)
+#define I2C_EMMA_STOP	    (IICE | SPT)
+#define I2C_EMMA_REPSTART   I2C_EMMA_START
+
+/*---------------------------------------------------------------------------*/
+/* STA - Status register (10H Read)					     */
+/*---------------------------------------------------------------------------*/
+#define MSTS	    0x00000080
+#define ALD	    0x00000040
+#define EXC	    0x00000020
+#define COI	    0x00000010
+#define TRC	    0x00000008
+#define ACKD	    0x00000004
+#define STD	    0x00000002
+#define SPD	    0x00000001
+
+/*---------------------------------------------------------------------------*/
+/* CSEL - Clock select register (20H R/W)				     */
+/*---------------------------------------------------------------------------*/
+#define FCL	    0x00000080
+#define ND50	    0x00000040
+#define CLD	    0x00000020
+#define DAD	    0x00000010
+#define SMC	    0x00000008
+#define DFC	    0x00000004
+#define CL	    0x00000003
+#define CSEL_RESERVED	0x000000ff	/* reserved bit 0 */
+
+#define FAST397	    0x0000008b
+#define FAST297	    0x0000008a
+#define FAST347	    0x0000000b
+#define FAST260	    0x0000000a
+#define FAST130	    0x00000008
+#define STANDARD108 0x00000083
+#define STANDARD83  0x00000082
+#define STANDARD95  0x00000003
+#define STANDARD73  0x00000002
+#define STANDARD36  0x00000001
+#define STANDARD71  0x00000000
+
+/*---------------------------------------------------------------------------*/
+/* SVA - Slave address register (30H R/W)				     */
+/*---------------------------------------------------------------------------*/
+#define SVA	    0x000000fe
+
+/*---------------------------------------------------------------------------*/
+/* SHR - Shift register (40H R/W)					     */
+/*---------------------------------------------------------------------------*/
+#define SR	    0x000000ff
+
+/*---------------------------------------------------------------------------*/
+/* INT - Interrupt register (50H R/W)					     */
+/* INTM - Interrupt mask register (60H R/W)				     */
+/*---------------------------------------------------------------------------*/
+#define INTE0	    0x00000001
+
+/***********************************************************************
+ * I2C registers
+ ***********************************************************************
+ */
+#define I2C_EMMA_CNT		0x00
+#define I2C_EMMA_STA		0x10
+#define I2C_EMMA_CSEL		0x20
+#define I2C_EMMA_SVA		0x30
+#define I2C_EMMA_SHR		0x40
+#define I2C_EMMA_INT		0x50
+#define I2C_EMMA_INTM		0x60
+
+/*
+ * include the board dependent part
+ */
+#ifdef CONFIG_NEC_MARKEINS
+#include <asm/emma/markeins.h>
+#else
+#error "Unknown EMMA2RH board!"
+#endif
+
+#endif /* __ASM_EMMA_EMMA2RH_H */

arch/mips/include/asm/emma/markeins.h

@@ -0,0 +1,41 @@
+/*
+ *  Copyright (C) NEC Electronics Corporation 2005-2006
+ *
+ *  This file based on include/asm-mips/ddb5xxx/ddb5xxx.h
+ *	    Copyright 2001 MontaVista Software Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef MARKEINS_H
+#define MARKEINS_H
+
+#define NUM_EMMA2RH_IRQ_SW	32
+#define NUM_EMMA2RH_IRQ_GPIO	32
+
+#define EMMA2RH_SW_CASCADE	(EMMA2RH_IRQ_INT(7) - EMMA2RH_IRQ_INT(0))
+#define EMMA2RH_GPIO_CASCADE	(EMMA2RH_IRQ_INT(46) - EMMA2RH_IRQ_INT(0))
+
+#define EMMA2RH_SW_IRQ_BASE	(EMMA2RH_IRQ_BASE + NUM_EMMA2RH_IRQ)
+#define EMMA2RH_GPIO_IRQ_BASE	(EMMA2RH_SW_IRQ_BASE + NUM_EMMA2RH_IRQ_SW)
+
+#define EMMA2RH_SW_IRQ_INT(n)	(EMMA2RH_SW_IRQ_BASE + (n))
+
+#define MARKEINS_PCI_IRQ_INTA	EMMA2RH_GPIO_IRQ_BASE+15
+#define MARKEINS_PCI_IRQ_INTB	EMMA2RH_GPIO_IRQ_BASE+16
+#define MARKEINS_PCI_IRQ_INTC	EMMA2RH_GPIO_IRQ_BASE+17
+#define MARKEINS_PCI_IRQ_INTD	EMMA2RH_GPIO_IRQ_BASE+18
+
+#endif /* CONFIG_MARKEINS */

arch/mips/include/asm/errno.h

@@ -0,0 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1999, 2001, 2002 by Ralf Baechle
+ */
+#ifndef _ASM_ERRNO_H
+#define _ASM_ERRNO_H
+
+#include <uapi/asm/errno.h>
+
+
+/* The biggest error number defined here or in <linux/errno.h>. */
+#define EMAXERRNO	1133
+
+#endif /* _ASM_ERRNO_H */

arch/mips/include/asm/eva.h

@@ -0,0 +1,43 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2014, Imagination Technologies Ltd.
+ *
+ * EVA functions for generic code
+ */
+
+#ifndef _ASM_EVA_H
+#define _ASM_EVA_H
+
+#include <kernel-entry-init.h>
+
+#ifdef __ASSEMBLY__
+
+#ifdef CONFIG_EVA
+
+/*
+ * EVA early init code
+ *
+ * Platforms must define their own 'platform_eva_init' macro in
+ * their kernel-entry-init.h header. This macro usually does the
+ * platform specific configuration of the segmentation registers,
+ * and it is normally called from assembly code.
+ *
+ */
+
+.macro eva_init
+platform_eva_init
+.endm
+
+#else
+
+.macro eva_init
+.endm
+
+#endif /* CONFIG_EVA */
+
+#endif /* __ASSEMBLY__ */
+
+#endif

arch/mips/include/asm/exec.h

@@ -0,0 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994, 95, 96, 97, 98, 99, 2003, 06 by Ralf Baechle
+ * Copyright (C) 1996 by Paul M. Antoine
+ * Copyright (C) 1999 Silicon Graphics
+ * Kevin D. Kissell, kevink@mips.org and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc.
+ */
+#ifndef _ASM_EXEC_H
+#define _ASM_EXEC_H
+
+extern unsigned long arch_align_stack(unsigned long sp);
+
+#endif /* _ASM_EXEC_H */

arch/mips/include/asm/fb.h

@@ -0,0 +1,19 @@
+#ifndef _ASM_FB_H_
+#define _ASM_FB_H_
+
+#include <linux/fb.h>
+#include <linux/fs.h>
+#include <asm/page.h>
+
+static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
+				unsigned long off)
+{
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+}
+
+static inline int fb_is_primary_device(struct fb_info *info)
+{
+	return 0;
+}
+
+#endif /* _ASM_FB_H_ */

arch/mips/include/asm/fixmap.h

@@ -0,0 +1,82 @@
+/*
+ * fixmap.h: compile-time virtual memory allocation
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1998 Ingo Molnar
+ *
+ * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
+ */
+
+#ifndef _ASM_FIXMAP_H
+#define _ASM_FIXMAP_H
+
+#include <asm/page.h>
+#include <spaces.h>
+#ifdef CONFIG_HIGHMEM
+#include <linux/threads.h>
+#include <asm/kmap_types.h>
+#endif
+
+/*
+ * Here we define all the compile-time 'special' virtual
+ * addresses. The point is to have a constant address at
+ * compile time, but to set the physical address only
+ * in the boot process. We allocate these special  addresses
+ * from the end of virtual memory (0xfffff000) backwards.
+ * Also this lets us do fail-safe vmalloc(), we
+ * can guarantee that these special addresses and
+ * vmalloc()-ed addresses never overlap.
+ *
+ * these 'compile-time allocated' memory buffers are
+ * fixed-size 4k pages. (or larger if used with an increment
+ * highger than 1) use fixmap_set(idx,phys) to associate
+ * physical memory with fixmap indices.
+ *
+ * TLB entries of such buffers will not be flushed across
+ * task switches.
+ */
+
+/*
+ * on UP currently we will have no trace of the fixmap mechanizm,
+ * no page table allocations, etc. This might change in the
+ * future, say framebuffers for the console driver(s) could be
+ * fix-mapped?
+ */
+enum fixed_addresses {
+#define FIX_N_COLOURS 8
+	FIX_CMAP_BEGIN,
+	FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * 2),
+#ifdef CONFIG_HIGHMEM
+	/* reserved pte's for temporary kernel mappings */
+	FIX_KMAP_BEGIN = FIX_CMAP_END + 1,
+	FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
+#endif
+	__end_of_fixed_addresses
+};
+
+/*
+ * used by vmalloc.c.
+ *
+ * Leave one empty page between vmalloc'ed areas and
+ * the start of the fixmap, and leave one page empty
+ * at the top of mem..
+ */
+#define FIXADDR_SIZE	(__end_of_fixed_addresses << PAGE_SHIFT)
+#define FIXADDR_START	(FIXADDR_TOP - FIXADDR_SIZE)
+
+#include <asm-generic/fixmap.h>
+
+#define kmap_get_fixmap_pte(vaddr)					\
+	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
+
+/*
+ * Called from pgtable_init()
+ */
+extern void fixrange_init(unsigned long start, unsigned long end,
+	pgd_t *pgd_base);
+
+
+#endif

arch/mips/include/asm/floppy.h

@@ -0,0 +1,56 @@
+/*
+ * Architecture specific parts of the Floppy driver
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995 - 2000 Ralf Baechle
+ */
+#ifndef _ASM_FLOPPY_H
+#define _ASM_FLOPPY_H
+
+#include <linux/dma-mapping.h>
+
+static inline void fd_cacheflush(char * addr, long size)
+{
+	dma_cache_sync(NULL, addr, size, DMA_BIDIRECTIONAL);
+}
+
+#define MAX_BUFFER_SECTORS 24
+
+
+/*
+ * And on Mips's the CMOS info fails also ...
+ *
+ * FIXME: This information should come from the ARC configuration tree
+ *	  or wherever a particular machine has stored this ...
+ */
+#define FLOPPY0_TYPE		fd_drive_type(0)
+#define FLOPPY1_TYPE		fd_drive_type(1)
+
+#define FDC1			fd_getfdaddr1()
+
+#define N_FDC 1			/* do you *really* want a second controller? */
+#define N_DRIVE 8
+
+/*
+ * The DMA channel used by the floppy controller cannot access data at
+ * addresses >= 16MB
+ *
+ * Went back to the 1MB limit, as some people had problems with the floppy
+ * driver otherwise. It doesn't matter much for performance anyway, as most
+ * floppy accesses go through the track buffer.
+ *
+ * On MIPSes using vdma, this actually means that *all* transfers go thru
+ * the * track buffer since 0x1000000 is always smaller than KSEG0/1.
+ * Actually this needs to be a bit more complicated since the so much different
+ * hardware available with MIPS CPUs ...
+ */
+#define CROSS_64KB(a, s) ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64)
+
+#define EXTRA_FLOPPY_PARAMS
+
+#include <floppy.h>
+
+#endif /* _ASM_FLOPPY_H */

arch/mips/include/asm/fpregdef.h

@@ -0,0 +1,113 @@
+/*
+ * Definitions for the FPU register names
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1999 Ralf Baechle
+ * Copyright (C) 1985 MIPS Computer Systems, Inc.
+ * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_FPREGDEF_H
+#define _ASM_FPREGDEF_H
+
+#include <asm/sgidefs.h>
+
+/*
+ * starting with binutils 2.24.51.20140729, MIPS binutils warn about mixing
+ * hardfloat and softfloat object files.  The kernel build uses soft-float by
+ * default, so we also need to pass -msoft-float along to GAS if it supports it.
+ * But this in turn causes assembler errors in files which access hardfloat
+ * registers.  We detect if GAS supports "-msoft-float" in the Makefile and
+ * explicitly put ".set hardfloat" where floating point registers are touched.
+ */
+#ifdef GAS_HAS_SET_HARDFLOAT
+#define SET_HARDFLOAT .set hardfloat
+#else
+#define SET_HARDFLOAT
+#endif
+
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+
+/*
+ * These definitions only cover the R3000-ish 16/32 register model.
+ * But we're trying to be R3000 friendly anyway ...
+ */
+#define fv0	$f0	 /* return value */
+#define fv0f	$f1
+#define fv1	$f2
+#define fv1f	$f3
+#define fa0	$f12	 /* argument registers */
+#define fa0f	$f13
+#define fa1	$f14
+#define fa1f	$f15
+#define ft0	$f4	 /* caller saved */
+#define ft0f	$f5
+#define ft1	$f6
+#define ft1f	$f7
+#define ft2	$f8
+#define ft2f	$f9
+#define ft3	$f10
+#define ft3f	$f11
+#define ft4	$f16
+#define ft4f	$f17
+#define ft5	$f18
+#define ft5f	$f19
+#define fs0	$f20	 /* callee saved */
+#define fs0f	$f21
+#define fs1	$f22
+#define fs1f	$f23
+#define fs2	$f24
+#define fs2f	$f25
+#define fs3	$f26
+#define fs3f	$f27
+#define fs4	$f28
+#define fs4f	$f29
+#define fs5	$f30
+#define fs5f	$f31
+
+#define fcr31	$31	 /* FPU status register */
+
+#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
+
+#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
+
+#define fv0	$f0	/* return value */
+#define fv1	$f2
+#define fa0	$f12	/* argument registers */
+#define fa1	$f13
+#define fa2	$f14
+#define fa3	$f15
+#define fa4	$f16
+#define fa5	$f17
+#define fa6	$f18
+#define fa7	$f19
+#define ft0	$f4	/* caller saved */
+#define ft1	$f5
+#define ft2	$f6
+#define ft3	$f7
+#define ft4	$f8
+#define ft5	$f9
+#define ft6	$f10
+#define ft7	$f11
+#define ft8	$f20
+#define ft9	$f21
+#define ft10	$f22
+#define ft11	$f23
+#define ft12	$f1
+#define ft13	$f3
+#define fs0	$f24	/* callee saved */
+#define fs1	$f25
+#define fs2	$f26
+#define fs3	$f27
+#define fs4	$f28
+#define fs5	$f29
+#define fs6	$f30
+#define fs7	$f31
+
+#define fcr31	$31
+
+#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */
+
+#endif /* _ASM_FPREGDEF_H */

arch/mips/include/asm/fpu.h

@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2002 MontaVista Software Inc.
+ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#ifndef _ASM_FPU_H
+#define _ASM_FPU_H
+
+#include <linux/sched.h>
+#include <linux/thread_info.h>
+#include <linux/bitops.h>
+
+#include <asm/mipsregs.h>
+#include <asm/cpu.h>
+#include <asm/cpu-features.h>
+#include <asm/fpu_emulator.h>
+#include <asm/hazards.h>
+#include <asm/processor.h>
+#include <asm/current.h>
+#include <asm/msa.h>
+
+#ifdef CONFIG_MIPS_MT_FPAFF
+#include <asm/mips_mt.h>
+#endif
+
+struct sigcontext;
+struct sigcontext32;
+
+extern void _init_fpu(void);
+extern void _save_fp(struct task_struct *);
+extern void _restore_fp(struct task_struct *);
+
+/*
+ * This enum specifies a mode in which we want the FPU to operate, for cores
+ * which implement the Status.FR bit. Note that FPU_32BIT & FPU_64BIT
+ * purposefully have the values 0 & 1 respectively, so that an integer value
+ * of Status.FR can be trivially casted to the corresponding enum fpu_mode.
+ */
+enum fpu_mode {
+	FPU_32BIT = 0,		/* FR = 0 */
+	FPU_64BIT,		/* FR = 1 */
+	FPU_AS_IS,
+};
+
+static inline int __enable_fpu(enum fpu_mode mode)
+{
+	int fr;
+
+	switch (mode) {
+	case FPU_AS_IS:
+		/* just enable the FPU in its current mode */
+		set_c0_status(ST0_CU1);
+		enable_fpu_hazard();
+		return 0;
+
+	case FPU_64BIT:
+#if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_64BIT))
+		/* we only have a 32-bit FPU */
+		return SIGFPE;
+#endif
+		/* fall through */
+	case FPU_32BIT:
+		/* set CU1 & change FR appropriately */
+		fr = (int)mode;
+		change_c0_status(ST0_CU1 | ST0_FR, ST0_CU1 | (fr ? ST0_FR : 0));
+		enable_fpu_hazard();
+
+		/* check FR has the desired value */
+		return (!!(read_c0_status() & ST0_FR) == !!fr) ? 0 : SIGFPE;
+
+	default:
+		BUG();
+	}
+
+	return SIGFPE;
+}
+
+#define __disable_fpu()							\
+do {									\
+	clear_c0_status(ST0_CU1);					\
+	disable_fpu_hazard();						\
+} while (0)
+
+#define clear_fpu_owner()	clear_thread_flag(TIF_USEDFPU)
+
+static inline int __is_fpu_owner(void)
+{
+	return test_thread_flag(TIF_USEDFPU);
+}
+
+static inline int is_fpu_owner(void)
+{
+	return cpu_has_fpu && __is_fpu_owner();
+}
+
+static inline int __own_fpu(void)
+{
+	enum fpu_mode mode;
+	int ret;
+
+	mode = !test_thread_flag(TIF_32BIT_FPREGS);
+	ret = __enable_fpu(mode);
+	if (ret)
+		return ret;
+
+	KSTK_STATUS(current) |= ST0_CU1;
+	if (mode == FPU_64BIT)
+		KSTK_STATUS(current) |= ST0_FR;
+	else /* mode == FPU_32BIT */
+		KSTK_STATUS(current) &= ~ST0_FR;
+
+	set_thread_flag(TIF_USEDFPU);
+	return 0;
+}
+
+static inline int own_fpu_inatomic(int restore)
+{
+	int ret = 0;
+
+	if (cpu_has_fpu && !__is_fpu_owner()) {
+		ret = __own_fpu();
+		if (restore && !ret)
+			_restore_fp(current);
+	}
+	return ret;
+}
+
+static inline int own_fpu(int restore)
+{
+	int ret;
+
+	preempt_disable();
+	ret = own_fpu_inatomic(restore);
+	preempt_enable();
+	return ret;
+}
+
+static inline void lose_fpu(int save)
+{
+	preempt_disable();
+	if (is_msa_enabled()) {
+		if (save) {
+			save_msa(current);
+			current->thread.fpu.fcr31 =
+					read_32bit_cp1_register(CP1_STATUS);
+		}
+		disable_msa();
+		clear_thread_flag(TIF_USEDMSA);
+		__disable_fpu();
+	} else if (is_fpu_owner()) {
+		if (save)
+			_save_fp(current);
+		__disable_fpu();
+	}
+	KSTK_STATUS(current) &= ~ST0_CU1;
+	clear_thread_flag(TIF_USEDFPU);
+	preempt_enable();
+}
+
+static inline int init_fpu(void)
+{
+	int ret = 0;
+
+	if (cpu_has_fpu) {
+		ret = __own_fpu();
+		if (!ret)
+			_init_fpu();
+	} else
+		fpu_emulator_init_fpu();
+
+	return ret;
+}
+
+static inline void save_fp(struct task_struct *tsk)
+{
+	if (cpu_has_fpu)
+		_save_fp(tsk);
+}
+
+static inline void restore_fp(struct task_struct *tsk)
+{
+	if (cpu_has_fpu)
+		_restore_fp(tsk);
+}
+
+static inline union fpureg *get_fpu_regs(struct task_struct *tsk)
+{
+	if (tsk == current) {
+		preempt_disable();
+		if (is_fpu_owner())
+			_save_fp(current);
+		preempt_enable();
+	}
+
+	return tsk->thread.fpu.fpr;
+}
+
+#endif /* _ASM_FPU_H */

arch/mips/include/asm/fpu_emulator.h

@@ -0,0 +1,95 @@
+/*
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Further private data for which no space exists in mips_fpu_struct.
+ * This should be subsumed into the mips_fpu_struct structure as
+ * defined in processor.h as soon as the absurd wired absolute assembler
+ * offsets become dynamic at compile time.
+ *
+ * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+ */
+#ifndef _ASM_FPU_EMULATOR_H
+#define _ASM_FPU_EMULATOR_H
+
+#include <linux/sched.h>
+#include <asm/break.h>
+#include <asm/thread_info.h>
+#include <asm/inst.h>
+#include <asm/local.h>
+#include <asm/processor.h>
+
+#ifdef CONFIG_DEBUG_FS
+
+struct mips_fpu_emulator_stats {
+	unsigned long emulated;
+	unsigned long loads;
+	unsigned long stores;
+	unsigned long cp1ops;
+	unsigned long cp1xops;
+	unsigned long errors;
+	unsigned long ieee754_inexact;
+	unsigned long ieee754_underflow;
+	unsigned long ieee754_overflow;
+	unsigned long ieee754_zerodiv;
+	unsigned long ieee754_invalidop;
+};
+
+DECLARE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
+
+#define MIPS_FPU_EMU_INC_STATS(M)					\
+do {									\
+	preempt_disable();						\
+	__this_cpu_inc(fpuemustats.M);					\
+	preempt_enable();						\
+} while (0)
+
+#else
+#define MIPS_FPU_EMU_INC_STATS(M) do { } while (0)
+#endif /* CONFIG_DEBUG_FS */
+
+extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir,
+	unsigned long cpc);
+extern int do_dsemulret(struct pt_regs *xcp);
+extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
+				    struct mips_fpu_struct *ctx, int has_fpu,
+				    void *__user *fault_addr);
+int process_fpemu_return(int sig, void __user *fault_addr);
+int mm_isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
+		     unsigned long *contpc);
+
+/*
+ * Instruction inserted following the badinst to further tag the sequence
+ */
+#define BD_COOKIE 0x0000bd36	/* tne $0, $0 with baggage */
+
+/*
+ * Break instruction with special math emu break code set
+ */
+#define BREAK_MATH (0x0000000d | (BRK_MEMU << 16))
+
+#define SIGNALLING_NAN 0x7ff800007ff80000LL
+
+static inline void fpu_emulator_init_fpu(void)
+{
+	struct task_struct *t = current;
+	int i;
+
+	t->thread.fpu.fcr31 = 0;
+
+	for (i = 0; i < 32; i++)
+		set_fpr64(&t->thread.fpu.fpr[i], 0, SIGNALLING_NAN);
+}
+
+#endif /* _ASM_FPU_EMULATOR_H */

arch/mips/include/asm/ftrace.h

@@ -0,0 +1,90 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive for
+ * more details.
+ *
+ * Copyright (C) 2009 DSLab, Lanzhou University, China
+ * Author: Wu Zhangjin <wuzhangjin@gmail.com>
+ */
+
+#ifndef _ASM_MIPS_FTRACE_H
+#define _ASM_MIPS_FTRACE_H
+
+#ifdef CONFIG_FUNCTION_TRACER
+
+#define MCOUNT_ADDR ((unsigned long)(_mcount))
+#define MCOUNT_INSN_SIZE 4		/* sizeof mcount call */
+
+#ifndef __ASSEMBLY__
+extern void _mcount(void);
+#define mcount _mcount
+
+#define safe_load(load, src, dst, error)		\
+do {							\
+	asm volatile (					\
+		"1: " load " %[tmp_dst], 0(%[tmp_src])\n"	\
+		"   li %[tmp_err], 0\n"			\
+		"2: .insn\n"				\
+							\
+		".section .fixup, \"ax\"\n"		\
+		"3: li %[tmp_err], 1\n"			\
+		"   j 2b\n"				\
+		".previous\n"				\
+							\
+		".section\t__ex_table,\"a\"\n\t"	\
+		STR(PTR) "\t1b, 3b\n\t"			\
+		".previous\n"				\
+							\
+		: [tmp_dst] "=&r" (dst), [tmp_err] "=r" (error)\
+		: [tmp_src] "r" (src)			\
+		: "memory"				\
+	);						\
+} while (0)
+
+#define safe_store(store, src, dst, error)	\
+do {						\
+	asm volatile (				\
+		"1: " store " %[tmp_src], 0(%[tmp_dst])\n"\
+		"   li %[tmp_err], 0\n"		\
+		"2: .insn\n"			\
+						\
+		".section .fixup, \"ax\"\n"	\
+		"3: li %[tmp_err], 1\n"		\
+		"   j 2b\n"			\
+		".previous\n"			\
+						\
+		".section\t__ex_table,\"a\"\n\t"\
+		STR(PTR) "\t1b, 3b\n\t"		\
+		".previous\n"			\
+						\
+		: [tmp_err] "=r" (error)	\
+		: [tmp_dst] "r" (dst), [tmp_src] "r" (src)\
+		: "memory"			\
+	);					\
+} while (0)
+
+#define safe_load_code(dst, src, error) \
+	safe_load(STR(lw), src, dst, error)
+#define safe_store_code(src, dst, error) \
+	safe_store(STR(sw), src, dst, error)
+
+#define safe_load_stack(dst, src, error) \
+	safe_load(STR(PTR_L), src, dst, error)
+
+#define safe_store_stack(src, dst, error) \
+	safe_store(STR(PTR_S), src, dst, error)
+
+
+#ifdef CONFIG_DYNAMIC_FTRACE
+static inline unsigned long ftrace_call_adjust(unsigned long addr)
+{
+	return addr;
+}
+
+struct dyn_arch_ftrace {
+};
+
+#endif /*  CONFIG_DYNAMIC_FTRACE */
+#endif /* __ASSEMBLY__ */
+#endif /* CONFIG_FUNCTION_TRACER */
+#endif /* _ASM_MIPS_FTRACE_H */

arch/mips/include/asm/futex.h

@@ -0,0 +1,207 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 2006  Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef _ASM_FUTEX_H
+#define _ASM_FUTEX_H
+
+#ifdef __KERNEL__
+
+#include <linux/futex.h>
+#include <linux/uaccess.h>
+#include <asm/asm-eva.h>
+#include <asm/barrier.h>
+#include <asm/errno.h>
+#include <asm/war.h>
+
+#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg)		\
+{									\
+	if (cpu_has_llsc && R10000_LLSC_WAR) {				\
+		__asm__ __volatile__(					\
+		"	.set	push				\n"	\
+		"	.set	noat				\n"	\
+		"	.set	arch=r4000			\n"	\
+		"1:	ll	%1, %4	# __futex_atomic_op	\n"	\
+		"	.set	mips0				\n"	\
+		"	" insn	"				\n"	\
+		"	.set	arch=r4000			\n"	\
+		"2:	sc	$1, %2				\n"	\
+		"	beqzl	$1, 1b				\n"	\
+		__WEAK_LLSC_MB						\
+		"3:						\n"	\
+		"	.set	pop				\n"	\
+		"	.set	mips0				\n"	\
+		"	.section .fixup,\"ax\"			\n"	\
+		"4:	li	%0, %6				\n"	\
+		"	j	3b				\n"	\
+		"	.previous				\n"	\
+		"	.section __ex_table,\"a\"		\n"	\
+		"	"__UA_ADDR "\t1b, 4b			\n"	\
+		"	"__UA_ADDR "\t2b, 4b			\n"	\
+		"	.previous				\n"	\
+		: "=r" (ret), "=&r" (oldval), "=R" (*uaddr)		\
+		: "0" (0), "R" (*uaddr), "Jr" (oparg), "i" (-EFAULT)	\
+		: "memory");						\
+	} else if (cpu_has_llsc) {					\
+		__asm__ __volatile__(					\
+		"	.set	push				\n"	\
+		"	.set	noat				\n"	\
+		"	.set	arch=r4000			\n"	\
+		"1:	"user_ll("%1", "%4")" # __futex_atomic_op\n"	\
+		"	.set	mips0				\n"	\
+		"	" insn	"				\n"	\
+		"	.set	arch=r4000			\n"	\
+		"2:	"user_sc("$1", "%2")"			\n"	\
+		"	beqz	$1, 1b				\n"	\
+		__WEAK_LLSC_MB						\
+		"3:						\n"	\
+		"	.set	pop				\n"	\
+		"	.set	mips0				\n"	\
+		"	.section .fixup,\"ax\"			\n"	\
+		"4:	li	%0, %6				\n"	\
+		"	j	3b				\n"	\
+		"	.previous				\n"	\
+		"	.section __ex_table,\"a\"		\n"	\
+		"	"__UA_ADDR "\t1b, 4b			\n"	\
+		"	"__UA_ADDR "\t2b, 4b			\n"	\
+		"	.previous				\n"	\
+		: "=r" (ret), "=&r" (oldval), "=R" (*uaddr)		\
+		: "0" (0), "R" (*uaddr), "Jr" (oparg), "i" (-EFAULT)	\
+		: "memory");						\
+	} else								\
+		ret = -ENOSYS;						\
+}
+
+static inline int
+futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+{
+	int op = (encoded_op >> 28) & 7;
+	int cmp = (encoded_op >> 24) & 15;
+	int oparg = (encoded_op << 8) >> 20;
+	int cmparg = (encoded_op << 20) >> 20;
+	int oldval = 0, ret;
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
+		oparg = 1 << oparg;
+
+	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	pagefault_disable();
+
+	switch (op) {
+	case FUTEX_OP_SET:
+		__futex_atomic_op("move $1, %z5", ret, oldval, uaddr, oparg);
+		break;
+
+	case FUTEX_OP_ADD:
+		__futex_atomic_op("addu $1, %1, %z5",
+				  ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_OR:
+		__futex_atomic_op("or	$1, %1, %z5",
+				  ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_ANDN:
+		__futex_atomic_op("and	$1, %1, %z5",
+				  ret, oldval, uaddr, ~oparg);
+		break;
+	case FUTEX_OP_XOR:
+		__futex_atomic_op("xor	$1, %1, %z5",
+				  ret, oldval, uaddr, oparg);
+		break;
+	default:
+		ret = -ENOSYS;
+	}
+
+	pagefault_enable();
+
+	if (!ret) {
+		switch (cmp) {
+		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
+		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
+		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
+		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
+		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
+		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
+		default: ret = -ENOSYS;
+		}
+	}
+	return ret;
+}
+
+static inline int
+futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+			      u32 oldval, u32 newval)
+{
+	int ret = 0;
+	u32 val;
+
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	if (cpu_has_llsc && R10000_LLSC_WAR) {
+		__asm__ __volatile__(
+		"# futex_atomic_cmpxchg_inatomic			\n"
+		"	.set	push					\n"
+		"	.set	noat					\n"
+		"	.set	arch=r4000				\n"
+		"1:	ll	%1, %3					\n"
+		"	bne	%1, %z4, 3f				\n"
+		"	.set	mips0					\n"
+		"	move	$1, %z5					\n"
+		"	.set	arch=r4000				\n"
+		"2:	sc	$1, %2					\n"
+		"	beqzl	$1, 1b					\n"
+		__WEAK_LLSC_MB
+		"3:							\n"
+		"	.set	pop					\n"
+		"	.section .fixup,\"ax\"				\n"
+		"4:	li	%0, %6					\n"
+		"	j	3b					\n"
+		"	.previous					\n"
+		"	.section __ex_table,\"a\"			\n"
+		"	"__UA_ADDR "\t1b, 4b				\n"
+		"	"__UA_ADDR "\t2b, 4b				\n"
+		"	.previous					\n"
+		: "+r" (ret), "=&r" (val), "=R" (*uaddr)
+		: "R" (*uaddr), "Jr" (oldval), "Jr" (newval), "i" (-EFAULT)
+		: "memory");
+	} else if (cpu_has_llsc) {
+		__asm__ __volatile__(
+		"# futex_atomic_cmpxchg_inatomic			\n"
+		"	.set	push					\n"
+		"	.set	noat					\n"
+		"	.set	arch=r4000				\n"
+		"1:	"user_ll("%1", "%3")"				\n"
+		"	bne	%1, %z4, 3f				\n"
+		"	.set	mips0					\n"
+		"	move	$1, %z5					\n"
+		"	.set	arch=r4000				\n"
+		"2:	"user_sc("$1", "%2")"				\n"
+		"	beqz	$1, 1b					\n"
+		__WEAK_LLSC_MB
+		"3:							\n"
+		"	.set	pop					\n"
+		"	.section .fixup,\"ax\"				\n"
+		"4:	li	%0, %6					\n"
+		"	j	3b					\n"
+		"	.previous					\n"
+		"	.section __ex_table,\"a\"			\n"
+		"	"__UA_ADDR "\t1b, 4b				\n"
+		"	"__UA_ADDR "\t2b, 4b				\n"
+		"	.previous					\n"
+		: "+r" (ret), "=&r" (val), "=R" (*uaddr)
+		: "R" (*uaddr), "Jr" (oldval), "Jr" (newval), "i" (-EFAULT)
+		: "memory");
+	} else
+		return -ENOSYS;
+
+	*uval = val;
+	return ret;
+}
+
+#endif
+#endif /* _ASM_FUTEX_H */

arch/mips/include/asm/fw/arc/hinv.h

@@ -0,0 +1,175 @@
+/*
+ * ARCS hardware/memory inventory/configuration and system ID definitions.
+ */
+#ifndef _ASM_ARC_HINV_H
+#define _ASM_ARC_HINV_H
+
+#include <asm/sgidefs.h>
+#include <asm/fw/arc/types.h>
+
+/* configuration query defines */
+typedef enum configclass {
+	SystemClass,
+	ProcessorClass,
+	CacheClass,
+#ifndef _NT_PROM
+	MemoryClass,
+	AdapterClass,
+	ControllerClass,
+	PeripheralClass
+#else	/* _NT_PROM */
+	AdapterClass,
+	ControllerClass,
+	PeripheralClass,
+	MemoryClass
+#endif	/* _NT_PROM */
+} CONFIGCLASS;
+
+typedef enum configtype {
+	ARC,
+	CPU,
+	FPU,
+	PrimaryICache,
+	PrimaryDCache,
+	SecondaryICache,
+	SecondaryDCache,
+	SecondaryCache,
+#ifndef _NT_PROM
+	Memory,
+#endif
+	EISAAdapter,
+	TCAdapter,
+	SCSIAdapter,
+	DTIAdapter,
+	MultiFunctionAdapter,
+	DiskController,
+	TapeController,
+	CDROMController,
+	WORMController,
+	SerialController,
+	NetworkController,
+	DisplayController,
+	ParallelController,
+	PointerController,
+	KeyboardController,
+	AudioController,
+	OtherController,
+	DiskPeripheral,
+	FloppyDiskPeripheral,
+	TapePeripheral,
+	ModemPeripheral,
+	MonitorPeripheral,
+	PrinterPeripheral,
+	PointerPeripheral,
+	KeyboardPeripheral,
+	TerminalPeripheral,
+	LinePeripheral,
+	NetworkPeripheral,
+#ifdef	_NT_PROM
+	Memory,
+#endif
+	OtherPeripheral,
+
+	/* new stuff for IP30 */
+	/* added without moving anything */
+	/* except ANONYMOUS. */
+
+	XTalkAdapter,
+	PCIAdapter,
+	GIOAdapter,
+	TPUAdapter,
+
+	Anonymous
+} CONFIGTYPE;
+
+typedef enum {
+	Failed = 1,
+	ReadOnly = 2,
+	Removable = 4,
+	ConsoleIn = 8,
+	ConsoleOut = 16,
+	Input = 32,
+	Output = 64
+} IDENTIFIERFLAG;
+
+#ifndef NULL			/* for GetChild(NULL); */
+#define NULL	0
+#endif
+
+union key_u {
+	struct {
+#ifdef	_MIPSEB
+		unsigned char  c_bsize;		/* block size in lines */
+		unsigned char  c_lsize;		/* line size in bytes/tag */
+		unsigned short c_size;		/* cache size in 4K pages */
+#else	/* _MIPSEL */
+		unsigned short c_size;		/* cache size in 4K pages */
+		unsigned char  c_lsize;		/* line size in bytes/tag */
+		unsigned char  c_bsize;		/* block size in lines */
+#endif	/* _MIPSEL */
+	} cache;
+	ULONG FullKey;
+};
+
+#if _MIPS_SIM == _MIPS_SIM_ABI64
+#define SGI_ARCS_VERS	64			/* sgi 64-bit version */
+#define SGI_ARCS_REV	0			/* rev .00 */
+#else
+#define SGI_ARCS_VERS	1			/* first version */
+#define SGI_ARCS_REV	10			/* rev .10, 3/04/92 */
+#endif
+
+typedef struct component {
+	CONFIGCLASS	Class;
+	CONFIGTYPE	Type;
+	IDENTIFIERFLAG	Flags;
+	USHORT		Version;
+	USHORT		Revision;
+	ULONG		Key;
+	ULONG		AffinityMask;
+	ULONG		ConfigurationDataSize;
+	ULONG		IdentifierLength;
+	char		*Identifier;
+} COMPONENT;
+
+/* internal structure that holds pathname parsing data */
+struct cfgdata {
+	char *name;			/* full name */
+	int minlen;			/* minimum length to match */
+	CONFIGTYPE type;		/* type of token */
+};
+
+/* System ID */
+typedef struct systemid {
+	CHAR VendorId[8];
+	CHAR ProductId[8];
+} SYSTEMID;
+
+/* memory query functions */
+typedef enum memorytype {
+	ExceptionBlock,
+	SPBPage,			/* ARCS == SystemParameterBlock */
+#ifndef _NT_PROM
+	FreeContiguous,
+	FreeMemory,
+	BadMemory,
+	LoadedProgram,
+	FirmwareTemporary,
+	FirmwarePermanent
+#else	/* _NT_PROM */
+	FreeMemory,
+	BadMemory,
+	LoadedProgram,
+	FirmwareTemporary,
+	FirmwarePermanent,
+	FreeContiguous
+#endif	/* _NT_PROM */
+} MEMORYTYPE;
+
+typedef struct memorydescriptor {
+	MEMORYTYPE	Type;
+	LONG		BasePage;
+	LONG		PageCount;
+} MEMORYDESCRIPTOR;
+
+#endif /* _ASM_ARC_HINV_H */

arch/mips/include/asm/fw/arc/types.h

@@ -0,0 +1,86 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright 1999 Ralf Baechle (ralf@gnu.org)
+ * Copyright 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_ARC_TYPES_H
+#define _ASM_ARC_TYPES_H
+
+
+#ifdef CONFIG_FW_ARC32
+
+typedef char		CHAR;
+typedef short		SHORT;
+typedef long		LARGE_INTEGER __attribute__ ((__mode__ (__DI__)));
+typedef long		LONG __attribute__ ((__mode__ (__SI__)));
+typedef unsigned char	UCHAR;
+typedef unsigned short	USHORT;
+typedef unsigned long	ULONG __attribute__ ((__mode__ (__SI__)));
+typedef void		VOID;
+
+/* The pointer types.  Note that we're using a 64-bit compiler but all
+   pointer in the ARC structures are only 32-bit, so we need some disgusting
+   workarounds.	 Keep your vomit bag handy.  */
+typedef LONG		_PCHAR;
+typedef LONG		_PSHORT;
+typedef LONG		_PLARGE_INTEGER;
+typedef LONG		_PLONG;
+typedef LONG		_PUCHAR;
+typedef LONG		_PUSHORT;
+typedef LONG		_PULONG;
+typedef LONG		_PVOID;
+
+#endif /* CONFIG_FW_ARC32 */
+
+#ifdef CONFIG_FW_ARC64
+
+typedef char		CHAR;
+typedef short		SHORT;
+typedef long		LARGE_INTEGER __attribute__ ((__mode__ (__DI__)));
+typedef long		LONG __attribute__ ((__mode__ (__DI__)));
+typedef unsigned char	UCHAR;
+typedef unsigned short	USHORT;
+typedef unsigned long	ULONG __attribute__ ((__mode__ (__DI__)));
+typedef void		VOID;
+
+/* The pointer types.  We're 64-bit and the firmware is also 64-bit, so
+   live is sane ...  */
+typedef CHAR		*_PCHAR;
+typedef SHORT		*_PSHORT;
+typedef LARGE_INTEGER	*_PLARGE_INTEGER;
+typedef LONG		*_PLONG;
+typedef UCHAR		*_PUCHAR;
+typedef USHORT		*_PUSHORT;
+typedef ULONG		*_PULONG;
+typedef VOID		*_PVOID;
+
+#endif /* CONFIG_FW_ARC64  */
+
+typedef CHAR		*PCHAR;
+typedef SHORT		*PSHORT;
+typedef LARGE_INTEGER	*PLARGE_INTEGER;
+typedef LONG		*PLONG;
+typedef UCHAR		*PUCHAR;
+typedef USHORT		*PUSHORT;
+typedef ULONG		*PULONG;
+typedef VOID		*PVOID;
+
+/*
+ * Return type of ArcGetDisplayStatus()
+ */
+typedef struct {
+	USHORT	CursorXPosition;
+	USHORT	CursorYPosition;
+	USHORT	CursorMaxXPosition;
+	USHORT	CursorMaxYPosition;
+	USHORT	ForegroundColor;
+	USHORT	BackgroundColor;
+	UCHAR	HighIntensity;
+	UCHAR	Underscored;
+	UCHAR	ReverseVideo;
+} DISPLAY_STATUS;
+
+#endif /* _ASM_ARC_TYPES_H */

arch/mips/include/asm/fw/cfe/cfe_api.h

@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2000, 2001, 2002 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+/*
+ * Broadcom Common Firmware Environment (CFE)
+ *
+ * This file contains declarations for doing callbacks to
+ * cfe from an application.  It should be the only header
+ * needed by the application to use this library
+ *
+ * Authors:  Mitch Lichtenberg, Chris Demetriou
+ */
+#ifndef CFE_API_H
+#define CFE_API_H
+
+#include <linux/types.h>
+#include <linux/string.h>
+
+typedef long intptr_t;
+
+
+/*
+ * Constants
+ */
+
+/* Seal indicating CFE's presence, passed to user program. */
+#define CFE_EPTSEAL 0x43464531
+
+#define CFE_MI_RESERVED 0	/* memory is reserved, do not use */
+#define CFE_MI_AVAILABLE 1	/* memory is available */
+
+#define CFE_FLG_WARMSTART     0x00000001
+#define CFE_FLG_FULL_ARENA    0x00000001
+#define CFE_FLG_ENV_PERMANENT 0x00000001
+
+#define CFE_CPU_CMD_START 1
+#define CFE_CPU_CMD_STOP 0
+
+#define CFE_STDHANDLE_CONSOLE	0
+
+#define CFE_DEV_NETWORK		1
+#define CFE_DEV_DISK		2
+#define CFE_DEV_FLASH		3
+#define CFE_DEV_SERIAL		4
+#define CFE_DEV_CPU		5
+#define CFE_DEV_NVRAM		6
+#define CFE_DEV_CLOCK		7
+#define CFE_DEV_OTHER		8
+#define CFE_DEV_MASK		0x0F
+
+#define CFE_CACHE_FLUSH_D	1
+#define CFE_CACHE_INVAL_I	2
+#define CFE_CACHE_INVAL_D	4
+#define CFE_CACHE_INVAL_L2	8
+
+#define CFE_FWI_64BIT		0x00000001
+#define CFE_FWI_32BIT		0x00000002
+#define CFE_FWI_RELOC		0x00000004
+#define CFE_FWI_UNCACHED	0x00000008
+#define CFE_FWI_MULTICPU	0x00000010
+#define CFE_FWI_FUNCSIM		0x00000020
+#define CFE_FWI_RTLSIM		0x00000040
+
+typedef struct {
+	int64_t fwi_version;		/* major, minor, eco version */
+	int64_t fwi_totalmem;		/* total installed mem */
+	int64_t fwi_flags;		/* various flags */
+	int64_t fwi_boardid;		/* board ID */
+	int64_t fwi_bootarea_va;	/* VA of boot area */
+	int64_t fwi_bootarea_pa;	/* PA of boot area */
+	int64_t fwi_bootarea_size;	/* size of boot area */
+} cfe_fwinfo_t;
+
+
+/*
+ * Defines and prototypes for functions which take no arguments.
+ */
+int64_t cfe_getticks(void);
+
+/*
+ * Defines and prototypes for the rest of the functions.
+ */
+int cfe_close(int handle);
+int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1);
+int cfe_cpu_stop(int cpu);
+int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen);
+int cfe_enummem(int idx, int flags, uint64_t * start, uint64_t * length,
+		uint64_t * type);
+int cfe_exit(int warm, int status);
+int cfe_flushcache(int flg);
+int cfe_getdevinfo(char *name);
+int cfe_getenv(char *name, char *dest, int destlen);
+int cfe_getfwinfo(cfe_fwinfo_t * info);
+int cfe_getstdhandle(int flg);
+int cfe_init(uint64_t handle, uint64_t ept);
+int cfe_inpstat(int handle);
+int cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer,
+	      int length, int *retlen, uint64_t offset);
+int cfe_open(char *name);
+int cfe_read(int handle, unsigned char *buffer, int length);
+int cfe_readblk(int handle, int64_t offset, unsigned char *buffer,
+		int length);
+int cfe_setenv(char *name, char *val);
+int cfe_write(int handle, const char *buffer, int length);
+int cfe_writeblk(int handle, int64_t offset, const char *buffer,
+		 int length);
+
+#endif				/* CFE_API_H */

arch/mips/include/asm/fw/cfe/cfe_error.h

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2000, 2001, 2002 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+/*
+ * Broadcom Common Firmware Environment (CFE)
+ *
+ * CFE's global error code list is here.
+ *
+ * Author:  Mitch Lichtenberg
+ */
+
+#define CFE_OK			 0
+#define CFE_ERR			-1	/* generic error */
+#define CFE_ERR_INV_COMMAND	-2
+#define CFE_ERR_EOF		-3
+#define CFE_ERR_IOERR		-4
+#define CFE_ERR_NOMEM		-5
+#define CFE_ERR_DEVNOTFOUND	-6
+#define CFE_ERR_DEVOPEN		-7
+#define CFE_ERR_INV_PARAM	-8
+#define CFE_ERR_ENVNOTFOUND	-9
+#define CFE_ERR_ENVREADONLY	-10
+
+#define CFE_ERR_NOTELF		-11
+#define CFE_ERR_NOT32BIT	-12
+#define CFE_ERR_WRONGENDIAN	-13
+#define CFE_ERR_BADELFVERS	-14
+#define CFE_ERR_NOTMIPS		-15
+#define CFE_ERR_BADELFFMT	-16
+#define CFE_ERR_BADADDR		-17
+
+#define CFE_ERR_FILENOTFOUND	-18
+#define CFE_ERR_UNSUPPORTED	-19
+
+#define CFE_ERR_HOSTUNKNOWN	-20
+
+#define CFE_ERR_TIMEOUT		-21
+
+#define CFE_ERR_PROTOCOLERR	-22
+
+#define CFE_ERR_NETDOWN		-23
+#define CFE_ERR_NONAMESERVER	-24
+
+#define CFE_ERR_NOHANDLES	-25
+#define CFE_ERR_ALREADYBOUND	-26
+
+#define CFE_ERR_CANNOTSET	-27
+#define CFE_ERR_NOMORE		-28
+#define CFE_ERR_BADFILESYS	-29
+#define CFE_ERR_FSNOTAVAIL	-30
+
+#define CFE_ERR_INVBOOTBLOCK	-31
+#define CFE_ERR_WRONGDEVTYPE	-32
+#define CFE_ERR_BBCHECKSUM	-33
+#define CFE_ERR_BOOTPROGCHKSUM	-34
+
+#define CFE_ERR_LDRNOTAVAIL	-35
+
+#define CFE_ERR_NOTREADY	-36
+
+#define CFE_ERR_GETMEM		-37
+#define CFE_ERR_SETMEM		-38
+
+#define CFE_ERR_NOTCONN		-39
+#define CFE_ERR_ADDRINUSE	-40

arch/mips/include/asm/fw/fw.h

@@ -0,0 +1,47 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc.
+ */
+#ifndef __ASM_FW_H_
+#define __ASM_FW_H_
+
+#include <asm/bootinfo.h>	/* For cleaner code... */
+
+enum fw_memtypes {
+	fw_dontuse,
+	fw_code,
+	fw_free,
+};
+
+typedef struct {
+	unsigned long base;	/* Within KSEG0 */
+	unsigned int size;	/* bytes */
+	enum fw_memtypes type;	/* fw_memtypes */
+} fw_memblock_t;
+
+/* Maximum number of memory block descriptors. */
+#define FW_MAX_MEMBLOCKS	32
+
+extern int fw_argc;
+extern int *_fw_argv;
+extern int *_fw_envp;
+
+/*
+ * Most firmware like YAMON, PMON, etc. pass arguments and environment
+ * variables as 32-bit pointers. These take care of sign extension.
+ */
+#define fw_argv(index)		((char *)(long)_fw_argv[(index)])
+#define fw_envp(index)		((char *)(long)_fw_envp[(index)])
+
+extern void fw_init_cmdline(void);
+extern char *fw_getcmdline(void);
+extern fw_memblock_t *fw_getmdesc(int);
+extern void fw_meminit(void);
+extern char *fw_getenv(char *name);
+extern unsigned long fw_getenvl(char *name);
+extern void fw_init_early_console(char port);
+
+#endif /* __ASM_FW_H_ */

arch/mips/include/asm/gic.h

@@ -0,0 +1,384 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000, 07 MIPS Technologies, Inc.
+ *
+ * GIC Register Definitions
+ *
+ */
+#ifndef _ASM_GICREGS_H
+#define _ASM_GICREGS_H
+
+#include <linux/bitmap.h>
+#include <linux/threads.h>
+
+#include <irq.h>
+
+#undef	GICISBYTELITTLEENDIAN
+
+/* Constants */
+#define GIC_POL_POS			1
+#define GIC_POL_NEG			0
+#define GIC_TRIG_EDGE			1
+#define GIC_TRIG_LEVEL			0
+
+#define MSK(n) ((1 << (n)) - 1)
+#define REG32(addr)		(*(volatile unsigned int *) (addr))
+#define REG(base, offs)		REG32((unsigned long)(base) + offs##_##OFS)
+#define REGP(base, phys)	REG32((unsigned long)(base) + (phys))
+
+/* Accessors */
+#define GIC_REG(segment, offset) \
+	REG32(_gic_base + segment##_##SECTION_OFS + offset##_##OFS)
+#define GIC_REG_ADDR(segment, offset) \
+	REG32(_gic_base + segment##_##SECTION_OFS + offset)
+
+#define GIC_ABS_REG(segment, offset) \
+	(_gic_base + segment##_##SECTION_OFS + offset##_##OFS)
+#define GIC_REG_ABS_ADDR(segment, offset) \
+	(_gic_base + segment##_##SECTION_OFS + offset)
+
+#ifdef GICISBYTELITTLEENDIAN
+#define GICREAD(reg, data)	((data) = (reg), (data) = le32_to_cpu(data))
+#define GICWRITE(reg, data)	((reg) = cpu_to_le32(data))
+#else
+#define GICREAD(reg, data)	((data) = (reg))
+#define GICWRITE(reg, data)	((reg) = (data))
+#endif
+#define GICBIS(reg, mask, bits)			\
+	do { u32 data;				\
+		GICREAD(reg, data);		\
+		data &= ~(mask);		\
+		data |= ((bits) & (mask));	\
+		GICWRITE((reg), data);		\
+	} while (0)
+
+
+/* GIC Address Space */
+#define SHARED_SECTION_OFS		0x0000
+#define SHARED_SECTION_SIZE		0x8000
+#define VPE_LOCAL_SECTION_OFS		0x8000
+#define VPE_LOCAL_SECTION_SIZE		0x4000
+#define VPE_OTHER_SECTION_OFS		0xc000
+#define VPE_OTHER_SECTION_SIZE		0x4000
+#define USM_VISIBLE_SECTION_OFS		0x10000
+#define USM_VISIBLE_SECTION_SIZE	0x10000
+
+/* Register Map for Shared Section */
+
+#define GIC_SH_CONFIG_OFS		0x0000
+
+/* Shared Global Counter */
+#define GIC_SH_COUNTER_31_00_OFS	0x0010
+#define GIC_SH_COUNTER_63_32_OFS	0x0014
+#define GIC_SH_REVISIONID_OFS		0x0020
+
+/* Interrupt Polarity */
+#define GIC_SH_POL_31_0_OFS		0x0100
+#define GIC_SH_POL_63_32_OFS		0x0104
+#define GIC_SH_POL_95_64_OFS		0x0108
+#define GIC_SH_POL_127_96_OFS		0x010c
+#define GIC_SH_POL_159_128_OFS		0x0110
+#define GIC_SH_POL_191_160_OFS		0x0114
+#define GIC_SH_POL_223_192_OFS		0x0118
+#define GIC_SH_POL_255_224_OFS		0x011c
+
+/* Edge/Level Triggering */
+#define GIC_SH_TRIG_31_0_OFS		0x0180
+#define GIC_SH_TRIG_63_32_OFS		0x0184
+#define GIC_SH_TRIG_95_64_OFS		0x0188
+#define GIC_SH_TRIG_127_96_OFS		0x018c
+#define GIC_SH_TRIG_159_128_OFS		0x0190
+#define GIC_SH_TRIG_191_160_OFS		0x0194
+#define GIC_SH_TRIG_223_192_OFS		0x0198
+#define GIC_SH_TRIG_255_224_OFS		0x019c
+
+/* Dual Edge Triggering */
+#define GIC_SH_DUAL_31_0_OFS		0x0200
+#define GIC_SH_DUAL_63_32_OFS		0x0204
+#define GIC_SH_DUAL_95_64_OFS		0x0208
+#define GIC_SH_DUAL_127_96_OFS		0x020c
+#define GIC_SH_DUAL_159_128_OFS		0x0210
+#define GIC_SH_DUAL_191_160_OFS		0x0214
+#define GIC_SH_DUAL_223_192_OFS		0x0218
+#define GIC_SH_DUAL_255_224_OFS		0x021c
+
+/* Set/Clear corresponding bit in Edge Detect Register */
+#define GIC_SH_WEDGE_OFS		0x0280
+
+/* Reset Mask - Disables Interrupt */
+#define GIC_SH_RMASK_31_0_OFS		0x0300
+#define GIC_SH_RMASK_63_32_OFS		0x0304
+#define GIC_SH_RMASK_95_64_OFS		0x0308
+#define GIC_SH_RMASK_127_96_OFS		0x030c
+#define GIC_SH_RMASK_159_128_OFS	0x0310
+#define GIC_SH_RMASK_191_160_OFS	0x0314
+#define GIC_SH_RMASK_223_192_OFS	0x0318
+#define GIC_SH_RMASK_255_224_OFS	0x031c
+
+/* Set Mask (WO) - Enables Interrupt */
+#define GIC_SH_SMASK_31_0_OFS		0x0380
+#define GIC_SH_SMASK_63_32_OFS		0x0384
+#define GIC_SH_SMASK_95_64_OFS		0x0388
+#define GIC_SH_SMASK_127_96_OFS		0x038c
+#define GIC_SH_SMASK_159_128_OFS	0x0390
+#define GIC_SH_SMASK_191_160_OFS	0x0394
+#define GIC_SH_SMASK_223_192_OFS	0x0398
+#define GIC_SH_SMASK_255_224_OFS	0x039c
+
+/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
+#define GIC_SH_MASK_31_0_OFS		0x0400
+#define GIC_SH_MASK_63_32_OFS		0x0404
+#define GIC_SH_MASK_95_64_OFS		0x0408
+#define GIC_SH_MASK_127_96_OFS		0x040c
+#define GIC_SH_MASK_159_128_OFS		0x0410
+#define GIC_SH_MASK_191_160_OFS		0x0414
+#define GIC_SH_MASK_223_192_OFS		0x0418
+#define GIC_SH_MASK_255_224_OFS		0x041c
+
+/* Pending Global Interrupts (RO) */
+#define GIC_SH_PEND_31_0_OFS		0x0480
+#define GIC_SH_PEND_63_32_OFS		0x0484
+#define GIC_SH_PEND_95_64_OFS		0x0488
+#define GIC_SH_PEND_127_96_OFS		0x048c
+#define GIC_SH_PEND_159_128_OFS		0x0490
+#define GIC_SH_PEND_191_160_OFS		0x0494
+#define GIC_SH_PEND_223_192_OFS		0x0498
+#define GIC_SH_PEND_255_224_OFS		0x049c
+
+#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500
+
+/* Maps Interrupt X to a Pin */
+#define GIC_SH_MAP_TO_PIN(intr) \
+	(GIC_SH_INTR_MAP_TO_PIN_BASE_OFS + (4 * intr))
+
+#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000
+
+/* Maps Interrupt X to a VPE */
+#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
+	(GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + (((vpe) / 32) * 4))
+#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe)	(1 << ((vpe) % 32))
+
+/* Convert an interrupt number to a byte offset/bit for multi-word registers */
+#define GIC_INTR_OFS(intr) (((intr) / 32)*4)
+#define GIC_INTR_BIT(intr) ((intr) % 32)
+
+/* Polarity : Reset Value is always 0 */
+#define GIC_SH_SET_POLARITY_OFS		0x0100
+#define GIC_SET_POLARITY(intr, pol) \
+	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + \
+		GIC_INTR_OFS(intr)), (1 << GIC_INTR_BIT(intr)), \
+		(pol) << GIC_INTR_BIT(intr))
+
+/* Triggering : Reset Value is always 0 */
+#define GIC_SH_SET_TRIGGER_OFS		0x0180
+#define GIC_SET_TRIGGER(intr, trig) \
+	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + \
+		GIC_INTR_OFS(intr)), (1 << GIC_INTR_BIT(intr)), \
+		(trig) << GIC_INTR_BIT(intr))
+
+/* Mask manipulation */
+#define GIC_SH_SMASK_OFS		0x0380
+#define GIC_SET_INTR_MASK(intr) \
+	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + \
+		GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
+#define GIC_SH_RMASK_OFS		0x0300
+#define GIC_CLR_INTR_MASK(intr) \
+	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + \
+		GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
+
+/* Register Map for Local Section */
+#define GIC_VPE_CTL_OFS			0x0000
+#define GIC_VPE_PEND_OFS		0x0004
+#define GIC_VPE_MASK_OFS		0x0008
+#define GIC_VPE_RMASK_OFS		0x000c
+#define GIC_VPE_SMASK_OFS		0x0010
+#define GIC_VPE_WD_MAP_OFS		0x0040
+#define GIC_VPE_COMPARE_MAP_OFS		0x0044
+#define GIC_VPE_TIMER_MAP_OFS		0x0048
+#define GIC_VPE_PERFCTR_MAP_OFS		0x0050
+#define GIC_VPE_SWINT0_MAP_OFS		0x0054
+#define GIC_VPE_SWINT1_MAP_OFS		0x0058
+#define GIC_VPE_OTHER_ADDR_OFS		0x0080
+#define GIC_VPE_WD_CONFIG0_OFS		0x0090
+#define GIC_VPE_WD_COUNT0_OFS		0x0094
+#define GIC_VPE_WD_INITIAL0_OFS		0x0098
+#define GIC_VPE_COMPARE_LO_OFS		0x00a0
+#define GIC_VPE_COMPARE_HI_OFS		0x00a4
+
+#define GIC_VPE_EIC_SHADOW_SET_BASE	0x0100
+#define GIC_VPE_EIC_SS(intr) \
+	(GIC_VPE_EIC_SHADOW_SET_BASE + (4 * intr))
+
+#define GIC_VPE_EIC_VEC_BASE		0x0800
+#define GIC_VPE_EIC_VEC(intr) \
+	(GIC_VPE_EIC_VEC_BASE + (4 * intr))
+
+#define GIC_VPE_TENABLE_NMI_OFS		0x1000
+#define GIC_VPE_TENABLE_YQ_OFS		0x1004
+#define GIC_VPE_TENABLE_INT_31_0_OFS	0x1080
+#define GIC_VPE_TENABLE_INT_63_32_OFS	0x1084
+
+/* User Mode Visible Section Register Map */
+#define GIC_UMV_SH_COUNTER_31_00_OFS	0x0000
+#define GIC_UMV_SH_COUNTER_63_32_OFS	0x0004
+
+/* Masks */
+#define GIC_SH_CONFIG_COUNTSTOP_SHF	28
+#define GIC_SH_CONFIG_COUNTSTOP_MSK	(MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)
+
+#define GIC_SH_CONFIG_COUNTBITS_SHF	24
+#define GIC_SH_CONFIG_COUNTBITS_MSK	(MSK(4) << GIC_SH_CONFIG_COUNTBITS_SHF)
+
+#define GIC_SH_CONFIG_NUMINTRS_SHF	16
+#define GIC_SH_CONFIG_NUMINTRS_MSK	(MSK(8) << GIC_SH_CONFIG_NUMINTRS_SHF)
+
+#define GIC_SH_CONFIG_NUMVPES_SHF	0
+#define GIC_SH_CONFIG_NUMVPES_MSK	(MSK(8) << GIC_SH_CONFIG_NUMVPES_SHF)
+
+#define GIC_SH_WEDGE_SET(intr)		(intr | (0x1 << 31))
+#define GIC_SH_WEDGE_CLR(intr)		(intr & ~(0x1 << 31))
+
+#define GIC_MAP_TO_PIN_SHF		31
+#define GIC_MAP_TO_PIN_MSK		(MSK(1) << GIC_MAP_TO_PIN_SHF)
+#define GIC_MAP_TO_NMI_SHF		30
+#define GIC_MAP_TO_NMI_MSK		(MSK(1) << GIC_MAP_TO_NMI_SHF)
+#define GIC_MAP_TO_YQ_SHF		29
+#define GIC_MAP_TO_YQ_MSK		(MSK(1) << GIC_MAP_TO_YQ_SHF)
+#define GIC_MAP_SHF			0
+#define GIC_MAP_MSK			(MSK(6) << GIC_MAP_SHF)
+
+/* GIC_VPE_CTL Masks */
+#define GIC_VPE_CTL_PERFCNT_RTBL_SHF	2
+#define GIC_VPE_CTL_PERFCNT_RTBL_MSK	(MSK(1) << GIC_VPE_CTL_PERFCNT_RTBL_SHF)
+#define GIC_VPE_CTL_TIMER_RTBL_SHF	1
+#define GIC_VPE_CTL_TIMER_RTBL_MSK	(MSK(1) << GIC_VPE_CTL_TIMER_RTBL_SHF)
+#define GIC_VPE_CTL_EIC_MODE_SHF	0
+#define GIC_VPE_CTL_EIC_MODE_MSK	(MSK(1) << GIC_VPE_CTL_EIC_MODE_SHF)
+
+/* GIC_VPE_PEND Masks */
+#define GIC_VPE_PEND_WD_SHF		0
+#define GIC_VPE_PEND_WD_MSK		(MSK(1) << GIC_VPE_PEND_WD_SHF)
+#define GIC_VPE_PEND_CMP_SHF		1
+#define GIC_VPE_PEND_CMP_MSK		(MSK(1) << GIC_VPE_PEND_CMP_SHF)
+#define GIC_VPE_PEND_TIMER_SHF		2
+#define GIC_VPE_PEND_TIMER_MSK		(MSK(1) << GIC_VPE_PEND_TIMER_SHF)
+#define GIC_VPE_PEND_PERFCOUNT_SHF	3
+#define GIC_VPE_PEND_PERFCOUNT_MSK	(MSK(1) << GIC_VPE_PEND_PERFCOUNT_SHF)
+#define GIC_VPE_PEND_SWINT0_SHF		4
+#define GIC_VPE_PEND_SWINT0_MSK		(MSK(1) << GIC_VPE_PEND_SWINT0_SHF)
+#define GIC_VPE_PEND_SWINT1_SHF		5
+#define GIC_VPE_PEND_SWINT1_MSK		(MSK(1) << GIC_VPE_PEND_SWINT1_SHF)
+
+/* GIC_VPE_RMASK Masks */
+#define GIC_VPE_RMASK_WD_SHF		0
+#define GIC_VPE_RMASK_WD_MSK		(MSK(1) << GIC_VPE_RMASK_WD_SHF)
+#define GIC_VPE_RMASK_CMP_SHF		1
+#define GIC_VPE_RMASK_CMP_MSK		(MSK(1) << GIC_VPE_RMASK_CMP_SHF)
+#define GIC_VPE_RMASK_TIMER_SHF		2
+#define GIC_VPE_RMASK_TIMER_MSK		(MSK(1) << GIC_VPE_RMASK_TIMER_SHF)
+#define GIC_VPE_RMASK_PERFCNT_SHF	3
+#define GIC_VPE_RMASK_PERFCNT_MSK	(MSK(1) << GIC_VPE_RMASK_PERFCNT_SHF)
+#define GIC_VPE_RMASK_SWINT0_SHF	4
+#define GIC_VPE_RMASK_SWINT0_MSK	(MSK(1) << GIC_VPE_RMASK_SWINT0_SHF)
+#define GIC_VPE_RMASK_SWINT1_SHF	5
+#define GIC_VPE_RMASK_SWINT1_MSK	(MSK(1) << GIC_VPE_RMASK_SWINT1_SHF)
+
+/* GIC_VPE_SMASK Masks */
+#define GIC_VPE_SMASK_WD_SHF		0
+#define GIC_VPE_SMASK_WD_MSK		(MSK(1) << GIC_VPE_SMASK_WD_SHF)
+#define GIC_VPE_SMASK_CMP_SHF		1
+#define GIC_VPE_SMASK_CMP_MSK		(MSK(1) << GIC_VPE_SMASK_CMP_SHF)
+#define GIC_VPE_SMASK_TIMER_SHF		2
+#define GIC_VPE_SMASK_TIMER_MSK		(MSK(1) << GIC_VPE_SMASK_TIMER_SHF)
+#define GIC_VPE_SMASK_PERFCNT_SHF	3
+#define GIC_VPE_SMASK_PERFCNT_MSK	(MSK(1) << GIC_VPE_SMASK_PERFCNT_SHF)
+#define GIC_VPE_SMASK_SWINT0_SHF	4
+#define GIC_VPE_SMASK_SWINT0_MSK	(MSK(1) << GIC_VPE_SMASK_SWINT0_SHF)
+#define GIC_VPE_SMASK_SWINT1_SHF	5
+#define GIC_VPE_SMASK_SWINT1_MSK	(MSK(1) << GIC_VPE_SMASK_SWINT1_SHF)
+
+/*
+ * Set the Mapping of Interrupt X to a VPE.
+ */
+#define GIC_SH_MAP_TO_VPE_SMASK(intr, vpe) \
+	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe)), \
+		 GIC_SH_MAP_TO_VPE_REG_BIT(vpe))
+
+/*
+ * Interrupt Meta-data specification. The ipiflag helps
+ * in building ipi_map.
+ */
+struct gic_intr_map {
+	unsigned int cpunum;	/* Directed to this CPU */
+#define GIC_UNUSED		0xdead			/* Dummy data */
+	unsigned int pin;	/* Directed to this Pin */
+	unsigned int polarity;	/* Polarity : +/-	*/
+	unsigned int trigtype;	/* Trigger  : Edge/Levl */
+	unsigned int flags;	/* Misc flags	*/
+#define GIC_FLAG_TRANSPARENT   0x01
+};
+
+/*
+ * This is only used in EIC mode. This helps to figure out which
+ * shared interrupts we need to process when we get a vector interrupt.
+ */
+#define GIC_MAX_SHARED_INTR  0x5
+struct gic_shared_intr_map {
+	unsigned int num_shared_intr;
+	unsigned int intr_list[GIC_MAX_SHARED_INTR];
+	unsigned int local_intr_mask;
+};
+
+/* GIC nomenclature for Core Interrupt Pins. */
+#define GIC_CPU_INT0		0 /* Core Interrupt 2 */
+#define GIC_CPU_INT1		1 /* .		      */
+#define GIC_CPU_INT2		2 /* .		      */
+#define GIC_CPU_INT3		3 /* .		      */
+#define GIC_CPU_INT4		4 /* .		      */
+#define GIC_CPU_INT5		5 /* Core Interrupt 7 */
+
+/* Local GIC interrupts. */
+#define GIC_INT_TMR		(GIC_CPU_INT5)
+#define GIC_INT_PERFCTR		(GIC_CPU_INT5)
+
+/* Add 2 to convert non-EIC hardware interrupt to EIC vector number. */
+#define GIC_CPU_TO_VEC_OFFSET	(2)
+
+/* Mapped interrupt to pin X, then GIC will generate the vector (X+1). */
+#define GIC_PIN_TO_VEC_OFFSET	(1)
+
+#include <linux/clocksource.h>
+#include <linux/irq.h>
+
+extern unsigned int gic_present;
+extern unsigned int gic_frequency;
+extern unsigned long _gic_base;
+extern unsigned int gic_irq_base;
+extern unsigned int gic_irq_flags[];
+extern struct gic_shared_intr_map gic_shared_intr_map[];
+
+extern void gic_init(unsigned long gic_base_addr,
+	unsigned long gic_addrspace_size, struct gic_intr_map *intrmap,
+	unsigned int intrmap_size, unsigned int irqbase);
+extern void gic_clocksource_init(unsigned int);
+extern unsigned int gic_compare_int (void);
+extern cycle_t gic_read_count(void);
+extern cycle_t gic_read_compare(void);
+extern void gic_write_compare(cycle_t cnt);
+extern void gic_write_cpu_compare(cycle_t cnt, int cpu);
+extern void gic_send_ipi(unsigned int intr);
+extern unsigned int plat_ipi_call_int_xlate(unsigned int);
+extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
+extern void gic_bind_eic_interrupt(int irq, int set);
+extern unsigned int gic_get_timer_pending(void);
+extern void gic_get_int_mask(unsigned long *dst, const unsigned long *src);
+extern unsigned int gic_get_int(void);
+extern void gic_enable_interrupt(int irq_vec);
+extern void gic_disable_interrupt(int irq_vec);
+extern void gic_irq_ack(struct irq_data *d);
+extern void gic_finish_irq(struct irq_data *d);
+extern void gic_platform_init(int irqs, struct irq_chip *irq_controller);
+#endif /* _ASM_GICREGS_H */

arch/mips/include/asm/gio_device.h

@@ -0,0 +1,56 @@
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+
+struct gio_device_id {
+	__u8 id;
+};
+
+struct gio_device {
+	struct device	dev;
+	struct resource resource;
+	unsigned int	irq;
+	unsigned int	slotno;
+
+	const char	*name;
+	struct gio_device_id id;
+	unsigned	id32:1;
+	unsigned	gio64:1;
+};
+#define to_gio_device(d) container_of(d, struct gio_device, dev)
+
+struct gio_driver {
+	const char    *name;
+	struct module *owner;
+	const struct gio_device_id *id_table;
+
+	int  (*probe)(struct gio_device *, const struct gio_device_id *);
+	void (*remove)(struct gio_device *);
+	int  (*suspend)(struct gio_device *, pm_message_t);
+	int  (*resume)(struct gio_device *);
+	void (*shutdown)(struct gio_device *);
+
+	struct device_driver driver;
+};
+#define to_gio_driver(drv) container_of(drv, struct gio_driver, driver)
+
+extern const struct gio_device_id *gio_match_device(const struct gio_device_id *,
+						    const struct gio_device *);
+extern struct gio_device *gio_dev_get(struct gio_device *);
+extern void gio_dev_put(struct gio_device *);
+
+extern int gio_device_register(struct gio_device *);
+extern void gio_device_unregister(struct gio_device *);
+extern void gio_release_dev(struct device *);
+
+static inline void gio_device_free(struct gio_device *dev)
+{
+	gio_release_dev(&dev->dev);
+}
+
+extern int gio_register_driver(struct gio_driver *);
+extern void gio_unregister_driver(struct gio_driver *);
+
+#define gio_get_drvdata(_dev)	     dev_get_drvdata(&(_dev)->dev)
+#define gio_set_drvdata(_dev, data)  dev_set_drvdata(&(_dev)->dev, (data))
+
+extern void gio_set_master(struct gio_device *);

arch/mips/include/asm/gpio.h

@@ -0,0 +1,6 @@
+#ifndef __ASM_MIPS_GPIO_H
+#define __ASM_MIPS_GPIO_H
+
+#include <gpio.h>
+
+#endif /* __ASM_MIPS_GPIO_H */

arch/mips/include/asm/gt64120.h

@@ -0,0 +1,578 @@
+/*
+ * Copyright (C) 2000, 2004, 2005  MIPS Technologies, Inc.
+ *	All rights reserved.
+ *	Authors: Carsten Langgaard <carstenl@mips.com>
+ *		 Maciej W. Rozycki <macro@mips.com>
+ * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+#ifndef _ASM_GT64120_H
+#define _ASM_GT64120_H
+
+#include <asm/addrspace.h>
+#include <asm/byteorder.h>
+
+#define MSK(n)			((1 << (n)) - 1)
+
+/*
+ *  Register offset addresses
+ */
+/* CPU Configuration.  */
+#define GT_CPU_OFS		0x000
+
+#define GT_MULTI_OFS		0x120
+
+/* CPU Address Decode.	*/
+#define GT_SCS10LD_OFS		0x008
+#define GT_SCS10HD_OFS		0x010
+#define GT_SCS32LD_OFS		0x018
+#define GT_SCS32HD_OFS		0x020
+#define GT_CS20LD_OFS		0x028
+#define GT_CS20HD_OFS		0x030
+#define GT_CS3BOOTLD_OFS	0x038
+#define GT_CS3BOOTHD_OFS	0x040
+#define GT_PCI0IOLD_OFS		0x048
+#define GT_PCI0IOHD_OFS		0x050
+#define GT_PCI0M0LD_OFS		0x058
+#define GT_PCI0M0HD_OFS		0x060
+#define GT_ISD_OFS		0x068
+
+#define GT_PCI0M1LD_OFS		0x080
+#define GT_PCI0M1HD_OFS		0x088
+#define GT_PCI1IOLD_OFS		0x090
+#define GT_PCI1IOHD_OFS		0x098
+#define GT_PCI1M0LD_OFS		0x0a0
+#define GT_PCI1M0HD_OFS		0x0a8
+#define GT_PCI1M1LD_OFS		0x0b0
+#define GT_PCI1M1HD_OFS		0x0b8
+#define GT_PCI1M1LD_OFS		0x0b0
+#define GT_PCI1M1HD_OFS		0x0b8
+
+#define GT_SCS10AR_OFS		0x0d0
+#define GT_SCS32AR_OFS		0x0d8
+#define GT_CS20R_OFS		0x0e0
+#define GT_CS3BOOTR_OFS		0x0e8
+
+#define GT_PCI0IOREMAP_OFS	0x0f0
+#define GT_PCI0M0REMAP_OFS	0x0f8
+#define GT_PCI0M1REMAP_OFS	0x100
+#define GT_PCI1IOREMAP_OFS	0x108
+#define GT_PCI1M0REMAP_OFS	0x110
+#define GT_PCI1M1REMAP_OFS	0x118
+
+/* CPU Error Report.  */
+#define GT_CPUERR_ADDRLO_OFS	0x070
+#define GT_CPUERR_ADDRHI_OFS	0x078
+
+#define GT_CPUERR_DATALO_OFS	0x128			/* GT-64120A only  */
+#define GT_CPUERR_DATAHI_OFS	0x130			/* GT-64120A only  */
+#define GT_CPUERR_PARITY_OFS	0x138			/* GT-64120A only  */
+
+/* CPU Sync Barrier.  */
+#define GT_PCI0SYNC_OFS		0x0c0
+#define GT_PCI1SYNC_OFS		0x0c8
+
+/* SDRAM and Device Address Decode.  */
+#define GT_SCS0LD_OFS		0x400
+#define GT_SCS0HD_OFS		0x404
+#define GT_SCS1LD_OFS		0x408
+#define GT_SCS1HD_OFS		0x40c
+#define GT_SCS2LD_OFS		0x410
+#define GT_SCS2HD_OFS		0x414
+#define GT_SCS3LD_OFS		0x418
+#define GT_SCS3HD_OFS		0x41c
+#define GT_CS0LD_OFS		0x420
+#define GT_CS0HD_OFS		0x424
+#define GT_CS1LD_OFS		0x428
+#define GT_CS1HD_OFS		0x42c
+#define GT_CS2LD_OFS		0x430
+#define GT_CS2HD_OFS		0x434
+#define GT_CS3LD_OFS		0x438
+#define GT_CS3HD_OFS		0x43c
+#define GT_BOOTLD_OFS		0x440
+#define GT_BOOTHD_OFS		0x444
+
+#define GT_ADERR_OFS		0x470
+
+/* SDRAM Configuration.	 */
+#define GT_SDRAM_CFG_OFS	0x448
+
+#define GT_SDRAM_OPMODE_OFS	0x474
+#define GT_SDRAM_BM_OFS		0x478
+#define GT_SDRAM_ADDRDECODE_OFS 0x47c
+
+/* SDRAM Parameters.  */
+#define GT_SDRAM_B0_OFS		0x44c
+#define GT_SDRAM_B1_OFS		0x450
+#define GT_SDRAM_B2_OFS		0x454
+#define GT_SDRAM_B3_OFS		0x458
+
+/* Device Parameters.  */
+#define GT_DEV_B0_OFS		0x45c
+#define GT_DEV_B1_OFS		0x460
+#define GT_DEV_B2_OFS		0x464
+#define GT_DEV_B3_OFS		0x468
+#define GT_DEV_BOOT_OFS		0x46c
+
+/* ECC.	 */
+#define GT_ECC_ERRDATALO	0x480			/* GT-64120A only  */
+#define GT_ECC_ERRDATAHI	0x484			/* GT-64120A only  */
+#define GT_ECC_MEM		0x488			/* GT-64120A only  */
+#define GT_ECC_CALC		0x48c			/* GT-64120A only  */
+#define GT_ECC_ERRADDR		0x490			/* GT-64120A only  */
+
+/* DMA Record.	*/
+#define GT_DMA0_CNT_OFS		0x800
+#define GT_DMA1_CNT_OFS		0x804
+#define GT_DMA2_CNT_OFS		0x808
+#define GT_DMA3_CNT_OFS		0x80c
+#define GT_DMA0_SA_OFS		0x810
+#define GT_DMA1_SA_OFS		0x814
+#define GT_DMA2_SA_OFS		0x818
+#define GT_DMA3_SA_OFS		0x81c
+#define GT_DMA0_DA_OFS		0x820
+#define GT_DMA1_DA_OFS		0x824
+#define GT_DMA2_DA_OFS		0x828
+#define GT_DMA3_DA_OFS		0x82c
+#define GT_DMA0_NEXT_OFS	0x830
+#define GT_DMA1_NEXT_OFS	0x834
+#define GT_DMA2_NEXT_OFS	0x838
+#define GT_DMA3_NEXT_OFS	0x83c
+
+#define GT_DMA0_CUR_OFS		0x870
+#define GT_DMA1_CUR_OFS		0x874
+#define GT_DMA2_CUR_OFS		0x878
+#define GT_DMA3_CUR_OFS		0x87c
+
+/* DMA Channel Control.	 */
+#define GT_DMA0_CTRL_OFS	0x840
+#define GT_DMA1_CTRL_OFS	0x844
+#define GT_DMA2_CTRL_OFS	0x848
+#define GT_DMA3_CTRL_OFS	0x84c
+
+/* DMA Arbiter.	 */
+#define GT_DMA_ARB_OFS		0x860
+
+/* Timer/Counter.  */
+#define GT_TC0_OFS		0x850
+#define GT_TC1_OFS		0x854
+#define GT_TC2_OFS		0x858
+#define GT_TC3_OFS		0x85c
+
+#define GT_TC_CONTROL_OFS	0x864
+
+/* PCI Internal.  */
+#define GT_PCI0_CMD_OFS		0xc00
+#define GT_PCI0_TOR_OFS		0xc04
+#define GT_PCI0_BS_SCS10_OFS	0xc08
+#define GT_PCI0_BS_SCS32_OFS	0xc0c
+#define GT_PCI0_BS_CS20_OFS	0xc10
+#define GT_PCI0_BS_CS3BT_OFS	0xc14
+
+#define GT_PCI1_IACK_OFS	0xc30
+#define GT_PCI0_IACK_OFS	0xc34
+
+#define GT_PCI0_BARE_OFS	0xc3c
+#define GT_PCI0_PREFMBR_OFS	0xc40
+
+#define GT_PCI0_SCS10_BAR_OFS	0xc48
+#define GT_PCI0_SCS32_BAR_OFS	0xc4c
+#define GT_PCI0_CS20_BAR_OFS	0xc50
+#define GT_PCI0_CS3BT_BAR_OFS	0xc54
+#define GT_PCI0_SSCS10_BAR_OFS	0xc58
+#define GT_PCI0_SSCS32_BAR_OFS	0xc5c
+
+#define GT_PCI0_SCS3BT_BAR_OFS	0xc64
+
+#define GT_PCI1_CMD_OFS		0xc80
+#define GT_PCI1_TOR_OFS		0xc84
+#define GT_PCI1_BS_SCS10_OFS	0xc88
+#define GT_PCI1_BS_SCS32_OFS	0xc8c
+#define GT_PCI1_BS_CS20_OFS	0xc90
+#define GT_PCI1_BS_CS3BT_OFS	0xc94
+
+#define GT_PCI1_BARE_OFS	0xcbc
+#define GT_PCI1_PREFMBR_OFS	0xcc0
+
+#define GT_PCI1_SCS10_BAR_OFS	0xcc8
+#define GT_PCI1_SCS32_BAR_OFS	0xccc
+#define GT_PCI1_CS20_BAR_OFS	0xcd0
+#define GT_PCI1_CS3BT_BAR_OFS	0xcd4
+#define GT_PCI1_SSCS10_BAR_OFS	0xcd8
+#define GT_PCI1_SSCS32_BAR_OFS	0xcdc
+
+#define GT_PCI1_SCS3BT_BAR_OFS	0xce4
+
+#define GT_PCI1_CFGADDR_OFS	0xcf0
+#define GT_PCI1_CFGDATA_OFS	0xcf4
+#define GT_PCI0_CFGADDR_OFS	0xcf8
+#define GT_PCI0_CFGDATA_OFS	0xcfc
+
+/* Interrupts.	*/
+#define GT_INTRCAUSE_OFS	0xc18
+#define GT_INTRMASK_OFS		0xc1c
+
+#define GT_PCI0_ICMASK_OFS	0xc24
+#define GT_PCI0_SERR0MASK_OFS	0xc28
+
+#define GT_CPU_INTSEL_OFS	0xc70
+#define GT_PCI0_INTSEL_OFS	0xc74
+
+#define GT_HINTRCAUSE_OFS	0xc98
+#define GT_HINTRMASK_OFS	0xc9c
+
+#define GT_PCI0_HICMASK_OFS	0xca4
+#define GT_PCI1_SERR1MASK_OFS	0xca8
+
+
+/*
+ * I2O Support Registers
+ */
+#define INBOUND_MESSAGE_REGISTER0_PCI_SIDE		0x010
+#define INBOUND_MESSAGE_REGISTER1_PCI_SIDE		0x014
+#define OUTBOUND_MESSAGE_REGISTER0_PCI_SIDE		0x018
+#define OUTBOUND_MESSAGE_REGISTER1_PCI_SIDE		0x01c
+#define INBOUND_DOORBELL_REGISTER_PCI_SIDE		0x020
+#define INBOUND_INTERRUPT_CAUSE_REGISTER_PCI_SIDE	0x024
+#define INBOUND_INTERRUPT_MASK_REGISTER_PCI_SIDE	0x028
+#define OUTBOUND_DOORBELL_REGISTER_PCI_SIDE		0x02c
+#define OUTBOUND_INTERRUPT_CAUSE_REGISTER_PCI_SIDE	0x030
+#define OUTBOUND_INTERRUPT_MASK_REGISTER_PCI_SIDE	0x034
+#define INBOUND_QUEUE_PORT_VIRTUAL_REGISTER_PCI_SIDE	0x040
+#define OUTBOUND_QUEUE_PORT_VIRTUAL_REGISTER_PCI_SIDE	0x044
+#define QUEUE_CONTROL_REGISTER_PCI_SIDE			0x050
+#define QUEUE_BASE_ADDRESS_REGISTER_PCI_SIDE		0x054
+#define INBOUND_FREE_HEAD_POINTER_REGISTER_PCI_SIDE	0x060
+#define INBOUND_FREE_TAIL_POINTER_REGISTER_PCI_SIDE	0x064
+#define INBOUND_POST_HEAD_POINTER_REGISTER_PCI_SIDE	0x068
+#define INBOUND_POST_TAIL_POINTER_REGISTER_PCI_SIDE	0x06c
+#define OUTBOUND_FREE_HEAD_POINTER_REGISTER_PCI_SIDE	0x070
+#define OUTBOUND_FREE_TAIL_POINTER_REGISTER_PCI_SIDE	0x074
+#define OUTBOUND_POST_HEAD_POINTER_REGISTER_PCI_SIDE	0x078
+#define OUTBOUND_POST_TAIL_POINTER_REGISTER_PCI_SIDE	0x07c
+
+#define INBOUND_MESSAGE_REGISTER0_CPU_SIDE		0x1c10
+#define INBOUND_MESSAGE_REGISTER1_CPU_SIDE		0x1c14
+#define OUTBOUND_MESSAGE_REGISTER0_CPU_SIDE		0x1c18
+#define OUTBOUND_MESSAGE_REGISTER1_CPU_SIDE		0x1c1c
+#define INBOUND_DOORBELL_REGISTER_CPU_SIDE		0x1c20
+#define INBOUND_INTERRUPT_CAUSE_REGISTER_CPU_SIDE	0x1c24
+#define INBOUND_INTERRUPT_MASK_REGISTER_CPU_SIDE	0x1c28
+#define OUTBOUND_DOORBELL_REGISTER_CPU_SIDE		0x1c2c
+#define OUTBOUND_INTERRUPT_CAUSE_REGISTER_CPU_SIDE	0x1c30
+#define OUTBOUND_INTERRUPT_MASK_REGISTER_CPU_SIDE	0x1c34
+#define INBOUND_QUEUE_PORT_VIRTUAL_REGISTER_CPU_SIDE	0x1c40
+#define OUTBOUND_QUEUE_PORT_VIRTUAL_REGISTER_CPU_SIDE	0x1c44
+#define QUEUE_CONTROL_REGISTER_CPU_SIDE			0x1c50
+#define QUEUE_BASE_ADDRESS_REGISTER_CPU_SIDE		0x1c54
+#define INBOUND_FREE_HEAD_POINTER_REGISTER_CPU_SIDE	0x1c60
+#define INBOUND_FREE_TAIL_POINTER_REGISTER_CPU_SIDE	0x1c64
+#define INBOUND_POST_HEAD_POINTER_REGISTER_CPU_SIDE	0x1c68
+#define INBOUND_POST_TAIL_POINTER_REGISTER_CPU_SIDE	0x1c6c
+#define OUTBOUND_FREE_HEAD_POINTER_REGISTER_CPU_SIDE	0x1c70
+#define OUTBOUND_FREE_TAIL_POINTER_REGISTER_CPU_SIDE	0x1c74
+#define OUTBOUND_POST_HEAD_POINTER_REGISTER_CPU_SIDE	0x1c78
+#define OUTBOUND_POST_TAIL_POINTER_REGISTER_CPU_SIDE	0x1c7c
+
+/*
+ *  Register encodings
+ */
+#define GT_CPU_ENDIAN_SHF	12
+#define GT_CPU_ENDIAN_MSK	(MSK(1) << GT_CPU_ENDIAN_SHF)
+#define GT_CPU_ENDIAN_BIT	GT_CPU_ENDIAN_MSK
+#define GT_CPU_WR_SHF		16
+#define GT_CPU_WR_MSK		(MSK(1) << GT_CPU_WR_SHF)
+#define GT_CPU_WR_BIT		GT_CPU_WR_MSK
+#define GT_CPU_WR_DXDXDXDX	0
+#define GT_CPU_WR_DDDD		1
+
+
+#define GT_PCI_DCRM_SHF		21
+#define GT_PCI_LD_SHF		0
+#define GT_PCI_LD_MSK		(MSK(15) << GT_PCI_LD_SHF)
+#define GT_PCI_HD_SHF		0
+#define GT_PCI_HD_MSK		(MSK(7) << GT_PCI_HD_SHF)
+#define GT_PCI_REMAP_SHF	0
+#define GT_PCI_REMAP_MSK	(MSK(11) << GT_PCI_REMAP_SHF)
+
+
+#define GT_CFGADDR_CFGEN_SHF	31
+#define GT_CFGADDR_CFGEN_MSK	(MSK(1) << GT_CFGADDR_CFGEN_SHF)
+#define GT_CFGADDR_CFGEN_BIT	GT_CFGADDR_CFGEN_MSK
+
+#define GT_CFGADDR_BUSNUM_SHF	16
+#define GT_CFGADDR_BUSNUM_MSK	(MSK(8) << GT_CFGADDR_BUSNUM_SHF)
+
+#define GT_CFGADDR_DEVNUM_SHF	11
+#define GT_CFGADDR_DEVNUM_MSK	(MSK(5) << GT_CFGADDR_DEVNUM_SHF)
+
+#define GT_CFGADDR_FUNCNUM_SHF	8
+#define GT_CFGADDR_FUNCNUM_MSK	(MSK(3) << GT_CFGADDR_FUNCNUM_SHF)
+
+#define GT_CFGADDR_REGNUM_SHF	2
+#define GT_CFGADDR_REGNUM_MSK	(MSK(6) << GT_CFGADDR_REGNUM_SHF)
+
+
+#define GT_SDRAM_BM_ORDER_SHF	2
+#define GT_SDRAM_BM_ORDER_MSK	(MSK(1) << GT_SDRAM_BM_ORDER_SHF)
+#define GT_SDRAM_BM_ORDER_BIT	GT_SDRAM_BM_ORDER_MSK
+#define GT_SDRAM_BM_ORDER_SUB	1
+#define GT_SDRAM_BM_ORDER_LIN	0
+
+#define GT_SDRAM_BM_RSVD_ALL1	0xffb
+
+
+#define GT_SDRAM_ADDRDECODE_ADDR_SHF	0
+#define GT_SDRAM_ADDRDECODE_ADDR_MSK	(MSK(3) << GT_SDRAM_ADDRDECODE_ADDR_SHF)
+#define GT_SDRAM_ADDRDECODE_ADDR_0	0
+#define GT_SDRAM_ADDRDECODE_ADDR_1	1
+#define GT_SDRAM_ADDRDECODE_ADDR_2	2
+#define GT_SDRAM_ADDRDECODE_ADDR_3	3
+#define GT_SDRAM_ADDRDECODE_ADDR_4	4
+#define GT_SDRAM_ADDRDECODE_ADDR_5	5
+#define GT_SDRAM_ADDRDECODE_ADDR_6	6
+#define GT_SDRAM_ADDRDECODE_ADDR_7	7
+
+
+#define GT_SDRAM_B0_CASLAT_SHF		0
+#define GT_SDRAM_B0_CASLAT_MSK		(MSK(2) << GT_SDRAM_B0__SHF)
+#define GT_SDRAM_B0_CASLAT_2		1
+#define GT_SDRAM_B0_CASLAT_3		2
+
+#define GT_SDRAM_B0_FTDIS_SHF		2
+#define GT_SDRAM_B0_FTDIS_MSK		(MSK(1) << GT_SDRAM_B0_FTDIS_SHF)
+#define GT_SDRAM_B0_FTDIS_BIT		GT_SDRAM_B0_FTDIS_MSK
+
+#define GT_SDRAM_B0_SRASPRCHG_SHF	3
+#define GT_SDRAM_B0_SRASPRCHG_MSK	(MSK(1) << GT_SDRAM_B0_SRASPRCHG_SHF)
+#define GT_SDRAM_B0_SRASPRCHG_BIT	GT_SDRAM_B0_SRASPRCHG_MSK
+#define GT_SDRAM_B0_SRASPRCHG_2		0
+#define GT_SDRAM_B0_SRASPRCHG_3		1
+
+#define GT_SDRAM_B0_B0COMPAB_SHF	4
+#define GT_SDRAM_B0_B0COMPAB_MSK	(MSK(1) << GT_SDRAM_B0_B0COMPAB_SHF)
+#define GT_SDRAM_B0_B0COMPAB_BIT	GT_SDRAM_B0_B0COMPAB_MSK
+
+#define GT_SDRAM_B0_64BITINT_SHF	5
+#define GT_SDRAM_B0_64BITINT_MSK	(MSK(1) << GT_SDRAM_B0_64BITINT_SHF)
+#define GT_SDRAM_B0_64BITINT_BIT	GT_SDRAM_B0_64BITINT_MSK
+#define GT_SDRAM_B0_64BITINT_2		0
+#define GT_SDRAM_B0_64BITINT_4		1
+
+#define GT_SDRAM_B0_BW_SHF		6
+#define GT_SDRAM_B0_BW_MSK		(MSK(1) << GT_SDRAM_B0_BW_SHF)
+#define GT_SDRAM_B0_BW_BIT		GT_SDRAM_B0_BW_MSK
+#define GT_SDRAM_B0_BW_32		0
+#define GT_SDRAM_B0_BW_64		1
+
+#define GT_SDRAM_B0_BLODD_SHF		7
+#define GT_SDRAM_B0_BLODD_MSK		(MSK(1) << GT_SDRAM_B0_BLODD_SHF)
+#define GT_SDRAM_B0_BLODD_BIT		GT_SDRAM_B0_BLODD_MSK
+
+#define GT_SDRAM_B0_PAR_SHF		8
+#define GT_SDRAM_B0_PAR_MSK		(MSK(1) << GT_SDRAM_B0_PAR_SHF)
+#define GT_SDRAM_B0_PAR_BIT		GT_SDRAM_B0_PAR_MSK
+
+#define GT_SDRAM_B0_BYPASS_SHF		9
+#define GT_SDRAM_B0_BYPASS_MSK		(MSK(1) << GT_SDRAM_B0_BYPASS_SHF)
+#define GT_SDRAM_B0_BYPASS_BIT		GT_SDRAM_B0_BYPASS_MSK
+
+#define GT_SDRAM_B0_SRAS2SCAS_SHF	10
+#define GT_SDRAM_B0_SRAS2SCAS_MSK	(MSK(1) << GT_SDRAM_B0_SRAS2SCAS_SHF)
+#define GT_SDRAM_B0_SRAS2SCAS_BIT	GT_SDRAM_B0_SRAS2SCAS_MSK
+#define GT_SDRAM_B0_SRAS2SCAS_2		0
+#define GT_SDRAM_B0_SRAS2SCAS_3		1
+
+#define GT_SDRAM_B0_SIZE_SHF		11
+#define GT_SDRAM_B0_SIZE_MSK		(MSK(1) << GT_SDRAM_B0_SIZE_SHF)
+#define GT_SDRAM_B0_SIZE_BIT		GT_SDRAM_B0_SIZE_MSK
+#define GT_SDRAM_B0_SIZE_16M		0
+#define GT_SDRAM_B0_SIZE_64M		1
+
+#define GT_SDRAM_B0_EXTPAR_SHF		12
+#define GT_SDRAM_B0_EXTPAR_MSK		(MSK(1) << GT_SDRAM_B0_EXTPAR_SHF)
+#define GT_SDRAM_B0_EXTPAR_BIT		GT_SDRAM_B0_EXTPAR_MSK
+
+#define GT_SDRAM_B0_BLEN_SHF		13
+#define GT_SDRAM_B0_BLEN_MSK		(MSK(1) << GT_SDRAM_B0_BLEN_SHF)
+#define GT_SDRAM_B0_BLEN_BIT		GT_SDRAM_B0_BLEN_MSK
+#define GT_SDRAM_B0_BLEN_8		0
+#define GT_SDRAM_B0_BLEN_4		1
+
+
+#define GT_SDRAM_CFG_REFINT_SHF		0
+#define GT_SDRAM_CFG_REFINT_MSK		(MSK(14) << GT_SDRAM_CFG_REFINT_SHF)
+
+#define GT_SDRAM_CFG_NINTERLEAVE_SHF	14
+#define GT_SDRAM_CFG_NINTERLEAVE_MSK	(MSK(1) << GT_SDRAM_CFG_NINTERLEAVE_SHF)
+#define GT_SDRAM_CFG_NINTERLEAVE_BIT	GT_SDRAM_CFG_NINTERLEAVE_MSK
+
+#define GT_SDRAM_CFG_RMW_SHF		15
+#define GT_SDRAM_CFG_RMW_MSK		(MSK(1) << GT_SDRAM_CFG_RMW_SHF)
+#define GT_SDRAM_CFG_RMW_BIT		GT_SDRAM_CFG_RMW_MSK
+
+#define GT_SDRAM_CFG_NONSTAGREF_SHF	16
+#define GT_SDRAM_CFG_NONSTAGREF_MSK	(MSK(1) << GT_SDRAM_CFG_NONSTAGREF_SHF)
+#define GT_SDRAM_CFG_NONSTAGREF_BIT	GT_SDRAM_CFG_NONSTAGREF_MSK
+
+#define GT_SDRAM_CFG_DUPCNTL_SHF	19
+#define GT_SDRAM_CFG_DUPCNTL_MSK	(MSK(1) << GT_SDRAM_CFG_DUPCNTL_SHF)
+#define GT_SDRAM_CFG_DUPCNTL_BIT	GT_SDRAM_CFG_DUPCNTL_MSK
+
+#define GT_SDRAM_CFG_DUPBA_SHF		20
+#define GT_SDRAM_CFG_DUPBA_MSK		(MSK(1) << GT_SDRAM_CFG_DUPBA_SHF)
+#define GT_SDRAM_CFG_DUPBA_BIT		GT_SDRAM_CFG_DUPBA_MSK
+
+#define GT_SDRAM_CFG_DUPEOT0_SHF	21
+#define GT_SDRAM_CFG_DUPEOT0_MSK	(MSK(1) << GT_SDRAM_CFG_DUPEOT0_SHF)
+#define GT_SDRAM_CFG_DUPEOT0_BIT	GT_SDRAM_CFG_DUPEOT0_MSK
+
+#define GT_SDRAM_CFG_DUPEOT1_SHF	22
+#define GT_SDRAM_CFG_DUPEOT1_MSK	(MSK(1) << GT_SDRAM_CFG_DUPEOT1_SHF)
+#define GT_SDRAM_CFG_DUPEOT1_BIT	GT_SDRAM_CFG_DUPEOT1_MSK
+
+#define GT_SDRAM_OPMODE_OP_SHF		0
+#define GT_SDRAM_OPMODE_OP_MSK		(MSK(3) << GT_SDRAM_OPMODE_OP_SHF)
+#define GT_SDRAM_OPMODE_OP_NORMAL	0
+#define GT_SDRAM_OPMODE_OP_NOP		1
+#define GT_SDRAM_OPMODE_OP_PRCHG	2
+#define GT_SDRAM_OPMODE_OP_MODE		3
+#define GT_SDRAM_OPMODE_OP_CBR		4
+
+#define GT_TC_CONTROL_ENTC0_SHF		0
+#define GT_TC_CONTROL_ENTC0_MSK		(MSK(1) << GT_TC_CONTROL_ENTC0_SHF)
+#define GT_TC_CONTROL_ENTC0_BIT		GT_TC_CONTROL_ENTC0_MSK
+#define GT_TC_CONTROL_SELTC0_SHF	1
+#define GT_TC_CONTROL_SELTC0_MSK	(MSK(1) << GT_TC_CONTROL_SELTC0_SHF)
+#define GT_TC_CONTROL_SELTC0_BIT	GT_TC_CONTROL_SELTC0_MSK
+
+
+#define GT_PCI0_BARE_SWSCS3BOOTDIS_SHF	0
+#define GT_PCI0_BARE_SWSCS3BOOTDIS_MSK	(MSK(1) << GT_PCI0_BARE_SWSCS3BOOTDIS_SHF)
+#define GT_PCI0_BARE_SWSCS3BOOTDIS_BIT	GT_PCI0_BARE_SWSCS3BOOTDIS_MSK
+
+#define GT_PCI0_BARE_SWSCS32DIS_SHF	1
+#define GT_PCI0_BARE_SWSCS32DIS_MSK	(MSK(1) << GT_PCI0_BARE_SWSCS32DIS_SHF)
+#define GT_PCI0_BARE_SWSCS32DIS_BIT	GT_PCI0_BARE_SWSCS32DIS_MSK
+
+#define GT_PCI0_BARE_SWSCS10DIS_SHF	2
+#define GT_PCI0_BARE_SWSCS10DIS_MSK	(MSK(1) << GT_PCI0_BARE_SWSCS10DIS_SHF)
+#define GT_PCI0_BARE_SWSCS10DIS_BIT	GT_PCI0_BARE_SWSCS10DIS_MSK
+
+#define GT_PCI0_BARE_INTIODIS_SHF	3
+#define GT_PCI0_BARE_INTIODIS_MSK	(MSK(1) << GT_PCI0_BARE_INTIODIS_SHF)
+#define GT_PCI0_BARE_INTIODIS_BIT	GT_PCI0_BARE_INTIODIS_MSK
+
+#define GT_PCI0_BARE_INTMEMDIS_SHF	4
+#define GT_PCI0_BARE_INTMEMDIS_MSK	(MSK(1) << GT_PCI0_BARE_INTMEMDIS_SHF)
+#define GT_PCI0_BARE_INTMEMDIS_BIT	GT_PCI0_BARE_INTMEMDIS_MSK
+
+#define GT_PCI0_BARE_CS3BOOTDIS_SHF	5
+#define GT_PCI0_BARE_CS3BOOTDIS_MSK	(MSK(1) << GT_PCI0_BARE_CS3BOOTDIS_SHF)
+#define GT_PCI0_BARE_CS3BOOTDIS_BIT	GT_PCI0_BARE_CS3BOOTDIS_MSK
+
+#define GT_PCI0_BARE_CS20DIS_SHF	6
+#define GT_PCI0_BARE_CS20DIS_MSK	(MSK(1) << GT_PCI0_BARE_CS20DIS_SHF)
+#define GT_PCI0_BARE_CS20DIS_BIT	GT_PCI0_BARE_CS20DIS_MSK
+
+#define GT_PCI0_BARE_SCS32DIS_SHF	7
+#define GT_PCI0_BARE_SCS32DIS_MSK	(MSK(1) << GT_PCI0_BARE_SCS32DIS_SHF)
+#define GT_PCI0_BARE_SCS32DIS_BIT	GT_PCI0_BARE_SCS32DIS_MSK
+
+#define GT_PCI0_BARE_SCS10DIS_SHF	8
+#define GT_PCI0_BARE_SCS10DIS_MSK	(MSK(1) << GT_PCI0_BARE_SCS10DIS_SHF)
+#define GT_PCI0_BARE_SCS10DIS_BIT	GT_PCI0_BARE_SCS10DIS_MSK
+
+
+#define GT_INTRCAUSE_MASABORT0_SHF	18
+#define GT_INTRCAUSE_MASABORT0_MSK	(MSK(1) << GT_INTRCAUSE_MASABORT0_SHF)
+#define GT_INTRCAUSE_MASABORT0_BIT	GT_INTRCAUSE_MASABORT0_MSK
+
+#define GT_INTRCAUSE_TARABORT0_SHF	19
+#define GT_INTRCAUSE_TARABORT0_MSK	(MSK(1) << GT_INTRCAUSE_TARABORT0_SHF)
+#define GT_INTRCAUSE_TARABORT0_BIT	GT_INTRCAUSE_TARABORT0_MSK
+
+
+#define GT_PCI0_CFGADDR_REGNUM_SHF	2
+#define GT_PCI0_CFGADDR_REGNUM_MSK	(MSK(6) << GT_PCI0_CFGADDR_REGNUM_SHF)
+#define GT_PCI0_CFGADDR_FUNCTNUM_SHF	8
+#define GT_PCI0_CFGADDR_FUNCTNUM_MSK	(MSK(3) << GT_PCI0_CFGADDR_FUNCTNUM_SHF)
+#define GT_PCI0_CFGADDR_DEVNUM_SHF	11
+#define GT_PCI0_CFGADDR_DEVNUM_MSK	(MSK(5) << GT_PCI0_CFGADDR_DEVNUM_SHF)
+#define GT_PCI0_CFGADDR_BUSNUM_SHF	16
+#define GT_PCI0_CFGADDR_BUSNUM_MSK	(MSK(8) << GT_PCI0_CFGADDR_BUSNUM_SHF)
+#define GT_PCI0_CFGADDR_CONFIGEN_SHF	31
+#define GT_PCI0_CFGADDR_CONFIGEN_MSK	(MSK(1) << GT_PCI0_CFGADDR_CONFIGEN_SHF)
+#define GT_PCI0_CFGADDR_CONFIGEN_BIT	GT_PCI0_CFGADDR_CONFIGEN_MSK
+
+#define GT_PCI0_CMD_MBYTESWAP_SHF	0
+#define GT_PCI0_CMD_MBYTESWAP_MSK	(MSK(1) << GT_PCI0_CMD_MBYTESWAP_SHF)
+#define GT_PCI0_CMD_MBYTESWAP_BIT	GT_PCI0_CMD_MBYTESWAP_MSK
+#define GT_PCI0_CMD_MWORDSWAP_SHF	10
+#define GT_PCI0_CMD_MWORDSWAP_MSK	(MSK(1) << GT_PCI0_CMD_MWORDSWAP_SHF)
+#define GT_PCI0_CMD_MWORDSWAP_BIT	GT_PCI0_CMD_MWORDSWAP_MSK
+#define GT_PCI0_CMD_SBYTESWAP_SHF	16
+#define GT_PCI0_CMD_SBYTESWAP_MSK	(MSK(1) << GT_PCI0_CMD_SBYTESWAP_SHF)
+#define GT_PCI0_CMD_SBYTESWAP_BIT	GT_PCI0_CMD_SBYTESWAP_MSK
+#define GT_PCI0_CMD_SWORDSWAP_SHF	11
+#define GT_PCI0_CMD_SWORDSWAP_MSK	(MSK(1) << GT_PCI0_CMD_SWORDSWAP_SHF)
+#define GT_PCI0_CMD_SWORDSWAP_BIT	GT_PCI0_CMD_SWORDSWAP_MSK
+
+#define GT_INTR_T0EXP_SHF		8
+#define GT_INTR_T0EXP_MSK		(MSK(1) << GT_INTR_T0EXP_SHF)
+#define GT_INTR_T0EXP_BIT		GT_INTR_T0EXP_MSK
+#define GT_INTR_RETRYCTR0_SHF		20
+#define GT_INTR_RETRYCTR0_MSK		(MSK(1) << GT_INTR_RETRYCTR0_SHF)
+#define GT_INTR_RETRYCTR0_BIT		GT_INTR_RETRYCTR0_MSK
+
+/*
+ *  Misc
+ */
+#define GT_DEF_PCI0_IO_BASE	0x10000000UL
+#define GT_DEF_PCI0_IO_SIZE	0x02000000UL
+#define GT_DEF_PCI0_MEM0_BASE	0x12000000UL
+#define GT_DEF_PCI0_MEM0_SIZE	0x02000000UL
+#define GT_DEF_BASE		0x14000000UL
+
+#define GT_MAX_BANKSIZE		(256 * 1024 * 1024)	/* Max 256MB bank  */
+#define GT_LATTIM_MIN		6			/* Minimum lat	*/
+
+/*
+ * The gt64120_dep.h file must define the following macros
+ *
+ *   GT_READ(ofs, data_pointer)
+ *   GT_WRITE(ofs, data)	   - read/write GT64120 registers in 32bit
+ *
+ *   TIMER	- gt64120 timer irq, temporary solution until
+ *		  full gt64120 cascade interrupt support is in place
+ */
+
+#include <mach-gt64120.h>
+
+/*
+ * Because of an error/peculiarity in the Galileo chip, we need to swap the
+ * bytes when running bigendian.  We also provide non-swapping versions.
+ */
+#define __GT_READ(ofs)							\
+	(*(volatile u32 *)(GT64120_BASE+(ofs)))
+#define __GT_WRITE(ofs, data)						\
+	do { *(volatile u32 *)(GT64120_BASE+(ofs)) = (data); } while (0)
+#define GT_READ(ofs)		le32_to_cpu(__GT_READ(ofs))
+#define GT_WRITE(ofs, data)	__GT_WRITE(ofs, cpu_to_le32(data))
+
+extern void gt641xx_set_base_clock(unsigned int clock);
+extern int gt641xx_timer0_state(void);
+
+#endif /* _ASM_GT64120_H */

arch/mips/include/asm/hardirq.h

@@ -0,0 +1,18 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1997, 98, 99, 2000, 01, 05 Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2001 MIPS Technologies, Inc.
+ */
+#ifndef _ASM_HARDIRQ_H
+#define _ASM_HARDIRQ_H
+
+extern void ack_bad_irq(unsigned int irq);
+#define ack_bad_irq ack_bad_irq
+
+#include <asm-generic/hardirq.h>
+
+#endif /* _ASM_HARDIRQ_H */

arch/mips/include/asm/hazards.h

@@ -0,0 +1,364 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 04, 07 Ralf Baechle <ralf@linux-mips.org>
+ * Copyright (C) MIPS Technologies, Inc.
+ *   written by Ralf Baechle <ralf@linux-mips.org>
+ */
+#ifndef _ASM_HAZARDS_H
+#define _ASM_HAZARDS_H
+
+#include <linux/stringify.h>
+
+#define ___ssnop							\
+	sll	$0, $0, 1
+
+#define ___ehb								\
+	sll	$0, $0, 3
+
+/*
+ * TLB hazards
+ */
+#if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_CPU_CAVIUM_OCTEON)
+
+/*
+ * MIPSR2 defines ehb for hazard avoidance
+ */
+
+#define __mtc0_tlbw_hazard						\
+	___ehb
+
+#define __tlbw_use_hazard						\
+	___ehb
+
+#define __tlb_probe_hazard						\
+	___ehb
+
+#define __irq_enable_hazard						\
+	___ehb
+
+#define __irq_disable_hazard						\
+	___ehb
+
+#define __back_to_back_c0_hazard					\
+	___ehb
+
+/*
+ * gcc has a tradition of misscompiling the previous construct using the
+ * address of a label as argument to inline assembler.	Gas otoh has the
+ * annoying difference between la and dla which are only usable for 32-bit
+ * rsp. 64-bit code, so can't be used without conditional compilation.
+ * The alterantive is switching the assembler to 64-bit code which happens
+ * to work right even for 32-bit code ...
+ */
+#define instruction_hazard()						\
+do {									\
+	unsigned long tmp;						\
+									\
+	__asm__ __volatile__(						\
+	"	.set	mips64r2				\n"	\
+	"	dla	%0, 1f					\n"	\
+	"	jr.hb	%0					\n"	\
+	"	.set	mips0					\n"	\
+	"1:							\n"	\
+	: "=r" (tmp));							\
+} while (0)
+
+#elif (defined(CONFIG_CPU_MIPSR1) && !defined(CONFIG_MIPS_ALCHEMY)) || \
+	defined(CONFIG_CPU_BMIPS)
+
+/*
+ * These are slightly complicated by the fact that we guarantee R1 kernels to
+ * run fine on R2 processors.
+ */
+
+#define __mtc0_tlbw_hazard						\
+	___ssnop;							\
+	___ssnop;							\
+	___ehb
+
+#define __tlbw_use_hazard						\
+	___ssnop;							\
+	___ssnop;							\
+	___ssnop;							\
+	___ehb
+
+#define __tlb_probe_hazard						\
+	___ssnop;							\
+	___ssnop;							\
+	___ssnop;							\
+	___ehb
+
+#define __irq_enable_hazard						\
+	___ssnop;							\
+	___ssnop;							\
+	___ssnop;							\
+	___ehb
+
+#define __irq_disable_hazard						\
+	___ssnop;							\
+	___ssnop;							\
+	___ssnop;							\
+	___ehb
+
+#define __back_to_back_c0_hazard					\
+	___ssnop;							\
+	___ssnop;							\
+	___ssnop;							\
+	___ehb
+
+/*
+ * gcc has a tradition of misscompiling the previous construct using the
+ * address of a label as argument to inline assembler.	Gas otoh has the
+ * annoying difference between la and dla which are only usable for 32-bit
+ * rsp. 64-bit code, so can't be used without conditional compilation.
+ * The alterantive is switching the assembler to 64-bit code which happens
+ * to work right even for 32-bit code ...
+ */
+#define __instruction_hazard()						\
+do {									\
+	unsigned long tmp;						\
+									\
+	__asm__ __volatile__(						\
+	"	.set	mips64r2				\n"	\
+	"	dla	%0, 1f					\n"	\
+	"	jr.hb	%0					\n"	\
+	"	.set	mips0					\n"	\
+	"1:							\n"	\
+	: "=r" (tmp));							\
+} while (0)
+
+#define instruction_hazard()						\
+do {									\
+	if (cpu_has_mips_r2)						\
+		__instruction_hazard();					\
+} while (0)
+
+#elif defined(CONFIG_MIPS_ALCHEMY) || defined(CONFIG_CPU_CAVIUM_OCTEON) || \
+	defined(CONFIG_CPU_LOONGSON2) || defined(CONFIG_CPU_R10000) || \
+	defined(CONFIG_CPU_R5500) || defined(CONFIG_CPU_XLR)
+
+/*
+ * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer.
+ */
+
+#define __mtc0_tlbw_hazard
+
+#define __tlbw_use_hazard
+
+#define __tlb_probe_hazard
+
+#define __irq_enable_hazard
+
+#define __irq_disable_hazard
+
+#define __back_to_back_c0_hazard
+
+#define instruction_hazard() do { } while (0)
+
+#elif defined(CONFIG_CPU_SB1)
+
+/*
+ * Mostly like R4000 for historic reasons
+ */
+#define __mtc0_tlbw_hazard
+
+#define __tlbw_use_hazard
+
+#define __tlb_probe_hazard
+
+#define __irq_enable_hazard
+
+#define __irq_disable_hazard						\
+	___ssnop;							\
+	___ssnop;							\
+	___ssnop
+
+#define __back_to_back_c0_hazard
+
+#define instruction_hazard() do { } while (0)
+
+#else
+
+/*
+ * Finally the catchall case for all other processors including R4000, R4400,
+ * R4600, R4700, R5000, RM7000, NEC VR41xx etc.
+ *
+ * The taken branch will result in a two cycle penalty for the two killed
+ * instructions on R4000 / R4400.  Other processors only have a single cycle
+ * hazard so this is nice trick to have an optimal code for a range of
+ * processors.
+ */
+#define __mtc0_tlbw_hazard						\
+	nop;								\
+	nop
+
+#define __tlbw_use_hazard						\
+	nop;								\
+	nop;								\
+	nop
+
+#define __tlb_probe_hazard						\
+	nop;								\
+	nop;								\
+	nop
+
+#define __irq_enable_hazard						\
+	___ssnop;							\
+	___ssnop;							\
+	___ssnop
+
+#define __irq_disable_hazard						\
+	nop;								\
+	nop;								\
+	nop
+
+#define __back_to_back_c0_hazard					\
+	___ssnop;							\
+	___ssnop;							\
+	___ssnop
+
+#define instruction_hazard() do { } while (0)
+
+#endif
+
+
+/* FPU hazards */
+
+#if defined(CONFIG_CPU_SB1)
+
+#define __enable_fpu_hazard						\
+	.set	push;							\
+	.set	mips64;							\
+	.set	noreorder;						\
+	___ssnop;							\
+	bnezl	$0, .+4;						\
+	___ssnop;							\
+	.set	pop
+
+#define __disable_fpu_hazard
+
+#elif defined(CONFIG_CPU_MIPSR2)
+
+#define __enable_fpu_hazard						\
+	___ehb
+
+#define __disable_fpu_hazard						\
+	___ehb
+
+#else
+
+#define __enable_fpu_hazard						\
+	nop;								\
+	nop;								\
+	nop;								\
+	nop
+
+#define __disable_fpu_hazard						\
+	___ehb
+
+#endif
+
+#ifdef __ASSEMBLY__
+
+#define _ssnop ___ssnop
+#define	_ehb ___ehb
+#define mtc0_tlbw_hazard __mtc0_tlbw_hazard
+#define tlbw_use_hazard __tlbw_use_hazard
+#define tlb_probe_hazard __tlb_probe_hazard
+#define irq_enable_hazard __irq_enable_hazard
+#define irq_disable_hazard __irq_disable_hazard
+#define back_to_back_c0_hazard __back_to_back_c0_hazard
+#define enable_fpu_hazard __enable_fpu_hazard
+#define disable_fpu_hazard __disable_fpu_hazard
+
+#else
+
+#define _ssnop()							\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(___ssnop)						\
+	);								\
+} while (0)
+
+#define	_ehb()								\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(___ehb)						\
+	);								\
+} while (0)
+
+
+#define mtc0_tlbw_hazard()						\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(__mtc0_tlbw_hazard)					\
+	);								\
+} while (0)
+
+
+#define tlbw_use_hazard()						\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(__tlbw_use_hazard)					\
+	);								\
+} while (0)
+
+
+#define tlb_probe_hazard()						\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(__tlb_probe_hazard)					\
+	);								\
+} while (0)
+
+
+#define irq_enable_hazard()						\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(__irq_enable_hazard)				\
+	);								\
+} while (0)
+
+
+#define irq_disable_hazard()						\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(__irq_disable_hazard)				\
+	);								\
+} while (0)
+
+
+#define back_to_back_c0_hazard() 					\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(__back_to_back_c0_hazard)				\
+	);								\
+} while (0)
+
+
+#define enable_fpu_hazard()						\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(__enable_fpu_hazard)				\
+	);								\
+} while (0)
+
+
+#define disable_fpu_hazard()						\
+do {									\
+	__asm__ __volatile__(						\
+	__stringify(__disable_fpu_hazard)				\
+	);								\
+} while (0)
+
+/*
+ * MIPS R2 instruction hazard barrier.   Needs to be called as a subroutine.
+ */
+extern void mips_ihb(void);
+
+#endif /* __ASSEMBLY__  */
+
+#endif /* _ASM_HAZARDS_H */

arch/mips/include/asm/highmem.h

@@ -0,0 +1,62 @@
+/*
+ * highmem.h: virtual kernel memory mappings for high memory
+ *
+ * Used in CONFIG_HIGHMEM systems for memory pages which
+ * are not addressable by direct kernel virtual addresses.
+ *
+ * Copyright (C) 1999 Gerhard Wichert, Siemens AG
+ *		      Gerhard.Wichert@pdb.siemens.de
+ *
+ *
+ * Redesigned the x86 32-bit VM architecture to deal with
+ * up to 16 Terabyte physical memory. With current x86 CPUs
+ * we now support up to 64 Gigabytes physical RAM.
+ *
+ * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
+ */
+#ifndef _ASM_HIGHMEM_H
+#define _ASM_HIGHMEM_H
+
+#ifdef __KERNEL__
+
+#include <linux/interrupt.h>
+#include <linux/uaccess.h>
+#include <asm/kmap_types.h>
+
+/* undef for production */
+#define HIGHMEM_DEBUG 1
+
+/* declarations for highmem.c */
+extern unsigned long highstart_pfn, highend_pfn;
+
+extern pte_t *pkmap_page_table;
+
+/*
+ * Right now we initialize only a single pte table. It can be extended
+ * easily, subsequent pte tables have to be allocated in one physical
+ * chunk of RAM.
+ */
+#define LAST_PKMAP 1024
+#define LAST_PKMAP_MASK (LAST_PKMAP-1)
+#define PKMAP_NR(virt)	((virt-PKMAP_BASE) >> PAGE_SHIFT)
+#define PKMAP_ADDR(nr)	(PKMAP_BASE + ((nr) << PAGE_SHIFT))
+
+extern void * kmap_high(struct page *page);
+extern void kunmap_high(struct page *page);
+
+extern void *kmap(struct page *page);
+extern void kunmap(struct page *page);
+extern void *kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
+extern struct page *kmap_atomic_to_page(void *ptr);
+
+#define flush_cache_kmaps()	flush_cache_all()
+
+extern void kmap_init(void);
+
+#define kmap_prot PAGE_KERNEL
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_HIGHMEM_H */

arch/mips/include/asm/hugetlb.h

@@ -0,0 +1,130 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008, 2009 Cavium Networks, Inc.
+ */
+
+#ifndef __ASM_HUGETLB_H
+#define __ASM_HUGETLB_H
+
+#include <asm/page.h>
+#include <asm-generic/hugetlb.h>
+
+
+static inline int is_hugepage_only_range(struct mm_struct *mm,
+					 unsigned long addr,
+					 unsigned long len)
+{
+	return 0;
+}
+
+static inline int prepare_hugepage_range(struct file *file,
+					 unsigned long addr,
+					 unsigned long len)
+{
+	unsigned long task_size = STACK_TOP;
+	struct hstate *h = hstate_file(file);
+
+	if (len & ~huge_page_mask(h))
+		return -EINVAL;
+	if (addr & ~huge_page_mask(h))
+		return -EINVAL;
+	if (len > task_size)
+		return -ENOMEM;
+	if (task_size - len < addr)
+		return -EINVAL;
+	return 0;
+}
+
+static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
+{
+}
+
+static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
+					  unsigned long addr,
+					  unsigned long end,
+					  unsigned long floor,
+					  unsigned long ceiling)
+{
+	free_pgd_range(tlb, addr, end, floor, ceiling);
+}
+
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+				   pte_t *ptep, pte_t pte)
+{
+	set_pte_at(mm, addr, ptep, pte);
+}
+
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+					    unsigned long addr, pte_t *ptep)
+{
+	pte_t clear;
+	pte_t pte = *ptep;
+
+	pte_val(clear) = (unsigned long)invalid_pte_table;
+	set_pte_at(mm, addr, ptep, clear);
+	return pte;
+}
+
+static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
+					 unsigned long addr, pte_t *ptep)
+{
+	flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
+}
+
+static inline int huge_pte_none(pte_t pte)
+{
+	unsigned long val = pte_val(pte) & ~_PAGE_GLOBAL;
+	return !val || (val == (unsigned long)invalid_pte_table);
+}
+
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+	return pte_wrprotect(pte);
+}
+
+static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
+					   unsigned long addr, pte_t *ptep)
+{
+	ptep_set_wrprotect(mm, addr, ptep);
+}
+
+static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
+					     unsigned long addr,
+					     pte_t *ptep, pte_t pte,
+					     int dirty)
+{
+	int changed = !pte_same(*ptep, pte);
+
+	if (changed) {
+		set_pte_at(vma->vm_mm, addr, ptep, pte);
+		/*
+		 * There could be some standard sized pages in there,
+		 * get them all.
+		 */
+		flush_tlb_range(vma, addr, addr + HPAGE_SIZE);
+	}
+	return changed;
+}
+
+static inline pte_t huge_ptep_get(pte_t *ptep)
+{
+	return *ptep;
+}
+
+static inline int arch_prepare_hugepage(struct page *page)
+{
+	return 0;
+}
+
+static inline void arch_release_hugepage(struct page *page)
+{
+}
+
+static inline void arch_clear_hugepage_flags(struct page *page)
+{
+}
+
+#endif /* __ASM_HUGETLB_H */

arch/mips/include/asm/hw_irq.h

@@ -0,0 +1,20 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000, 2001, 2002 by Ralf Baechle
+ */
+#ifndef __ASM_HW_IRQ_H
+#define __ASM_HW_IRQ_H
+
+#include <linux/atomic.h>
+
+extern atomic_t irq_err_count;
+
+/*
+ * interrupt-retrigger: NOP for now. This may not be appropriate for all
+ * machines, we'll see ...
+ */
+
+#endif /* __ASM_HW_IRQ_H */

arch/mips/include/asm/i8259.h

@@ -0,0 +1,86 @@
+/*
+ *	include/asm-mips/i8259.h
+ *
+ *	i8259A interrupt definitions.
+ *
+ *	Copyright (C) 2003  Maciej W. Rozycki
+ *	Copyright (C) 2003  Ralf Baechle <ralf@linux-mips.org>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+#ifndef _ASM_I8259_H
+#define _ASM_I8259_H
+
+#include <linux/compiler.h>
+#include <linux/spinlock.h>
+
+#include <asm/io.h>
+#include <irq.h>
+
+/* i8259A PIC registers */
+#define PIC_MASTER_CMD		0x20
+#define PIC_MASTER_IMR		0x21
+#define PIC_MASTER_ISR		PIC_MASTER_CMD
+#define PIC_MASTER_POLL		PIC_MASTER_ISR
+#define PIC_MASTER_OCW3		PIC_MASTER_ISR
+#define PIC_SLAVE_CMD		0xa0
+#define PIC_SLAVE_IMR		0xa1
+
+/* i8259A PIC related value */
+#define PIC_CASCADE_IR		2
+#define MASTER_ICW4_DEFAULT	0x01
+#define SLAVE_ICW4_DEFAULT	0x01
+#define PIC_ICW4_AEOI		2
+
+extern raw_spinlock_t i8259A_lock;
+
+extern int i8259A_irq_pending(unsigned int irq);
+extern void make_8259A_irq(unsigned int irq);
+
+extern void init_i8259_irqs(void);
+
+/*
+ * Do the traditional i8259 interrupt polling thing.  This is for the few
+ * cases where no better interrupt acknowledge method is available and we
+ * absolutely must touch the i8259.
+ */
+static inline int i8259_irq(void)
+{
+	int irq;
+
+	raw_spin_lock(&i8259A_lock);
+
+	/* Perform an interrupt acknowledge cycle on controller 1. */
+	outb(0x0C, PIC_MASTER_CMD);		/* prepare for poll */
+	irq = inb(PIC_MASTER_CMD) & 7;
+	if (irq == PIC_CASCADE_IR) {
+		/*
+		 * Interrupt is cascaded so perform interrupt
+		 * acknowledge on controller 2.
+		 */
+		outb(0x0C, PIC_SLAVE_CMD);		/* prepare for poll */
+		irq = (inb(PIC_SLAVE_CMD) & 7) + 8;
+	}
+
+	if (unlikely(irq == 7)) {
+		/*
+		 * This may be a spurious interrupt.
+		 *
+		 * Read the interrupt status register (ISR). If the most
+		 * significant bit is not set then there is no valid
+		 * interrupt.
+		 */
+		outb(0x0B, PIC_MASTER_ISR);		/* ISR register */
+		if(~inb(PIC_MASTER_ISR) & 0x80)
+			irq = -1;
+	}
+
+	raw_spin_unlock(&i8259A_lock);
+
+	return likely(irq >= 0) ? irq + I8259A_IRQ_BASE : irq;
+}
+
+#endif /* _ASM_I8259_H */

arch/mips/include/asm/ide.h

@@ -0,0 +1,13 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * This file contains the MIPS architecture specific IDE code.
+ */
+#ifndef __ASM_IDE_H
+#define __ASM_IDE_H
+
+#include <ide.h>
+
+#endif /* __ASM_IDE_H */

arch/mips/include/asm/idle.h

@@ -0,0 +1,30 @@
+#ifndef __ASM_IDLE_H
+#define __ASM_IDLE_H
+
+#include <linux/cpuidle.h>
+#include <linux/linkage.h>
+
+extern void (*cpu_wait)(void);
+extern void r4k_wait(void);
+extern asmlinkage void __r4k_wait(void);
+extern void r4k_wait_irqoff(void);
+
+static inline int using_rollback_handler(void)
+{
+	return cpu_wait == r4k_wait;
+}
+
+extern int mips_cpuidle_wait_enter(struct cpuidle_device *dev,
+				   struct cpuidle_driver *drv, int index);
+
+#define MIPS_CPUIDLE_WAIT_STATE {\
+	.enter			= mips_cpuidle_wait_enter,\
+	.exit_latency		= 1,\
+	.target_residency	= 1,\
+	.power_usage		= UINT_MAX,\
+	.flags			= CPUIDLE_FLAG_TIME_VALID,\
+	.name			= "wait",\
+	.desc			= "MIPS wait",\
+}
+
+#endif /* __ASM_IDLE_H  */

arch/mips/include/asm/inst.h

@@ -0,0 +1,88 @@
+/*
+ * Format of an instruction in memory.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 2000 by Ralf Baechle
+ * Copyright (C) 2006 by Thiemo Seufer
+ */
+#ifndef _ASM_INST_H
+#define _ASM_INST_H
+
+#include <uapi/asm/inst.h>
+
+/* HACHACHAHCAHC ...  */
+
+/* In case some other massaging is needed, keep MIPSInst as wrapper */
+
+#define MIPSInst(x) x
+
+#define I_OPCODE_SFT	26
+#define MIPSInst_OPCODE(x) (MIPSInst(x) >> I_OPCODE_SFT)
+
+#define I_JTARGET_SFT	0
+#define MIPSInst_JTARGET(x) (MIPSInst(x) & 0x03ffffff)
+
+#define I_RS_SFT	21
+#define MIPSInst_RS(x) ((MIPSInst(x) & 0x03e00000) >> I_RS_SFT)
+
+#define I_RT_SFT	16
+#define MIPSInst_RT(x) ((MIPSInst(x) & 0x001f0000) >> I_RT_SFT)
+
+#define I_IMM_SFT	0
+#define MIPSInst_SIMM(x) ((int)((short)(MIPSInst(x) & 0xffff)))
+#define MIPSInst_UIMM(x) (MIPSInst(x) & 0xffff)
+
+#define I_CACHEOP_SFT	18
+#define MIPSInst_CACHEOP(x) ((MIPSInst(x) & 0x001c0000) >> I_CACHEOP_SFT)
+
+#define I_CACHESEL_SFT	16
+#define MIPSInst_CACHESEL(x) ((MIPSInst(x) & 0x00030000) >> I_CACHESEL_SFT)
+
+#define I_RD_SFT	11
+#define MIPSInst_RD(x) ((MIPSInst(x) & 0x0000f800) >> I_RD_SFT)
+
+#define I_RE_SFT	6
+#define MIPSInst_RE(x) ((MIPSInst(x) & 0x000007c0) >> I_RE_SFT)
+
+#define I_FUNC_SFT	0
+#define MIPSInst_FUNC(x) (MIPSInst(x) & 0x0000003f)
+
+#define I_FFMT_SFT	21
+#define MIPSInst_FFMT(x) ((MIPSInst(x) & 0x01e00000) >> I_FFMT_SFT)
+
+#define I_FT_SFT	16
+#define MIPSInst_FT(x) ((MIPSInst(x) & 0x001f0000) >> I_FT_SFT)
+
+#define I_FS_SFT	11
+#define MIPSInst_FS(x) ((MIPSInst(x) & 0x0000f800) >> I_FS_SFT)
+
+#define I_FD_SFT	6
+#define MIPSInst_FD(x) ((MIPSInst(x) & 0x000007c0) >> I_FD_SFT)
+
+#define I_FR_SFT	21
+#define MIPSInst_FR(x) ((MIPSInst(x) & 0x03e00000) >> I_FR_SFT)
+
+#define I_FMA_FUNC_SFT	2
+#define MIPSInst_FMA_FUNC(x) ((MIPSInst(x) & 0x0000003c) >> I_FMA_FUNC_SFT)
+
+#define I_FMA_FFMT_SFT	0
+#define MIPSInst_FMA_FFMT(x) (MIPSInst(x) & 0x00000003)
+
+typedef unsigned int mips_instruction;
+
+/* microMIPS instruction decode structure. Do NOT export!!! */
+struct mm_decoded_insn {
+	mips_instruction insn;
+	mips_instruction next_insn;
+	int pc_inc;
+	int next_pc_inc;
+	int micro_mips_mode;
+};
+
+/* Recode table from 16-bit register notation to 32-bit GPR. Do NOT export!!! */
+extern const int reg16to32[];
+
+#endif /* _ASM_INST_H */

arch/mips/include/asm/io.h

@@ -0,0 +1,633 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994, 1995 Waldorf GmbH
+ * Copyright (C) 1994 - 2000, 06 Ralf Baechle
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2004, 2005  MIPS Technologies, Inc.  All rights reserved.
+ *	Author: Maciej W. Rozycki <macro@mips.com>
+ */
+#ifndef _ASM_IO_H
+#define _ASM_IO_H
+
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/irqflags.h>
+
+#include <asm/addrspace.h>
+#include <asm/bug.h>
+#include <asm/byteorder.h>
+#include <asm/cpu.h>
+#include <asm/cpu-features.h>
+#include <asm-generic/iomap.h>
+#include <asm/page.h>
+#include <asm/pgtable-bits.h>
+#include <asm/processor.h>
+#include <asm/string.h>
+
+#include <ioremap.h>
+#include <mangle-port.h>
+
+/*
+ * Slowdown I/O port space accesses for antique hardware.
+ */
+#undef CONF_SLOWDOWN_IO
+
+/*
+ * Raw operations are never swapped in software.  OTOH values that raw
+ * operations are working on may or may not have been swapped by the bus
+ * hardware.  An example use would be for flash memory that's used for
+ * execute in place.
+ */
+# define __raw_ioswabb(a, x)	(x)
+# define __raw_ioswabw(a, x)	(x)
+# define __raw_ioswabl(a, x)	(x)
+# define __raw_ioswabq(a, x)	(x)
+# define ____raw_ioswabq(a, x)	(x)
+
+/* ioswab[bwlq], __mem_ioswab[bwlq] are defined in mangle-port.h */
+
+#define IO_SPACE_LIMIT 0xffff
+
+/*
+ * On MIPS I/O ports are memory mapped, so we access them using normal
+ * load/store instructions. mips_io_port_base is the virtual address to
+ * which all ports are being mapped.  For sake of efficiency some code
+ * assumes that this is an address that can be loaded with a single lui
+ * instruction, so the lower 16 bits must be zero.  Should be true on
+ * on any sane architecture; generic code does not use this assumption.
+ */
+extern const unsigned long mips_io_port_base;
+
+/*
+ * Gcc will generate code to load the value of mips_io_port_base after each
+ * function call which may be fairly wasteful in some cases.  So we don't
+ * play quite by the book.  We tell gcc mips_io_port_base is a long variable
+ * which solves the code generation issue.  Now we need to violate the
+ * aliasing rules a little to make initialization possible and finally we
+ * will need the barrier() to fight side effects of the aliasing chat.
+ * This trickery will eventually collapse under gcc's optimizer.  Oh well.
+ */
+static inline void set_io_port_base(unsigned long base)
+{
+	* (unsigned long *) &mips_io_port_base = base;
+	barrier();
+}
+
+/*
+ * Thanks to James van Artsdalen for a better timing-fix than
+ * the two short jumps: using outb's to a nonexistent port seems
+ * to guarantee better timings even on fast machines.
+ *
+ * On the other hand, I'd like to be sure of a non-existent port:
+ * I feel a bit unsafe about using 0x80 (should be safe, though)
+ *
+ *		Linus
+ *
+ */
+
+#define __SLOW_DOWN_IO \
+	__asm__ __volatile__( \
+		"sb\t$0,0x80(%0)" \
+		: : "r" (mips_io_port_base));
+
+#ifdef CONF_SLOWDOWN_IO
+#ifdef REALLY_SLOW_IO
+#define SLOW_DOWN_IO { __SLOW_DOWN_IO; __SLOW_DOWN_IO; __SLOW_DOWN_IO; __SLOW_DOWN_IO; }
+#else
+#define SLOW_DOWN_IO __SLOW_DOWN_IO
+#endif
+#else
+#define SLOW_DOWN_IO
+#endif
+
+/*
+ *     virt_to_phys    -       map virtual addresses to physical
+ *     @address: address to remap
+ *
+ *     The returned physical address is the physical (CPU) mapping for
+ *     the memory address given. It is only valid to use this function on
+ *     addresses directly mapped or allocated via kmalloc.
+ *
+ *     This function does not give bus mappings for DMA transfers. In
+ *     almost all conceivable cases a device driver should not be using
+ *     this function
+ */
+static inline unsigned long virt_to_phys(volatile const void *address)
+{
+	return __pa(address);
+}
+
+/*
+ *     phys_to_virt    -       map physical address to virtual
+ *     @address: address to remap
+ *
+ *     The returned virtual address is a current CPU mapping for
+ *     the memory address given. It is only valid to use this function on
+ *     addresses that have a kernel mapping
+ *
+ *     This function does not handle bus mappings for DMA transfers. In
+ *     almost all conceivable cases a device driver should not be using
+ *     this function
+ */
+static inline void * phys_to_virt(unsigned long address)
+{
+	return (void *)(address + PAGE_OFFSET - PHYS_OFFSET);
+}
+
+/*
+ * ISA I/O bus memory addresses are 1:1 with the physical address.
+ */
+static inline unsigned long isa_virt_to_bus(volatile void * address)
+{
+	return (unsigned long)address - PAGE_OFFSET;
+}
+
+static inline void * isa_bus_to_virt(unsigned long address)
+{
+	return (void *)(address + PAGE_OFFSET);
+}
+
+#define isa_page_to_bus page_to_phys
+
+/*
+ * However PCI ones are not necessarily 1:1 and therefore these interfaces
+ * are forbidden in portable PCI drivers.
+ *
+ * Allow them for x86 for legacy drivers, though.
+ */
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+
+/*
+ * Change "struct page" to physical address.
+ */
+#define page_to_phys(page)	((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
+
+extern void __iomem * __ioremap(phys_t offset, phys_t size, unsigned long flags);
+extern void __iounmap(const volatile void __iomem *addr);
+
+#ifndef CONFIG_PCI
+struct pci_dev;
+static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {}
+#endif
+
+static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
+	unsigned long flags)
+{
+	void __iomem *addr = plat_ioremap(offset, size, flags);
+
+	if (addr)
+		return addr;
+
+#define __IS_LOW512(addr) (!((phys_t)(addr) & (phys_t) ~0x1fffffffULL))
+
+	if (cpu_has_64bit_addresses) {
+		u64 base = UNCAC_BASE;
+
+		/*
+		 * R10000 supports a 2 bit uncached attribute therefore
+		 * UNCAC_BASE may not equal IO_BASE.
+		 */
+		if (flags == _CACHE_UNCACHED)
+			base = (u64) IO_BASE;
+		return (void __iomem *) (unsigned long) (base + offset);
+	} else if (__builtin_constant_p(offset) &&
+		   __builtin_constant_p(size) && __builtin_constant_p(flags)) {
+		phys_t phys_addr, last_addr;
+
+		phys_addr = fixup_bigphys_addr(offset, size);
+
+		/* Don't allow wraparound or zero size. */
+		last_addr = phys_addr + size - 1;
+		if (!size || last_addr < phys_addr)
+			return NULL;
+
+		/*
+		 * Map uncached objects in the low 512MB of address
+		 * space using KSEG1.
+		 */
+		if (__IS_LOW512(phys_addr) && __IS_LOW512(last_addr) &&
+		    flags == _CACHE_UNCACHED)
+			return (void __iomem *)
+				(unsigned long)CKSEG1ADDR(phys_addr);
+	}
+
+	return __ioremap(offset, size, flags);
+
+#undef __IS_LOW512
+}
+
+/*
+ * ioremap     -   map bus memory into CPU space
+ * @offset:    bus address of the memory
+ * @size:      size of the resource to map
+ *
+ * ioremap performs a platform specific sequence of operations to
+ * make bus memory CPU accessible via the readb/readw/readl/writeb/
+ * writew/writel functions and the other mmio helpers. The returned
+ * address is not guaranteed to be usable directly as a virtual
+ * address.
+ */
+#define ioremap(offset, size)						\
+	__ioremap_mode((offset), (size), _CACHE_UNCACHED)
+
+/*
+ * ioremap_nocache     -   map bus memory into CPU space
+ * @offset:    bus address of the memory
+ * @size:      size of the resource to map
+ *
+ * ioremap_nocache performs a platform specific sequence of operations to
+ * make bus memory CPU accessible via the readb/readw/readl/writeb/
+ * writew/writel functions and the other mmio helpers. The returned
+ * address is not guaranteed to be usable directly as a virtual
+ * address.
+ *
+ * This version of ioremap ensures that the memory is marked uncachable
+ * on the CPU as well as honouring existing caching rules from things like
+ * the PCI bus. Note that there are other caches and buffers on many
+ * busses. In particular driver authors should read up on PCI writes
+ *
+ * It's useful if some control registers are in such an area and
+ * write combining or read caching is not desirable:
+ */
+#define ioremap_nocache(offset, size)					\
+	__ioremap_mode((offset), (size), _CACHE_UNCACHED)
+
+/*
+ * ioremap_cachable -	map bus memory into CPU space
+ * @offset:	    bus address of the memory
+ * @size:	    size of the resource to map
+ *
+ * ioremap_nocache performs a platform specific sequence of operations to
+ * make bus memory CPU accessible via the readb/readw/readl/writeb/
+ * writew/writel functions and the other mmio helpers. The returned
+ * address is not guaranteed to be usable directly as a virtual
+ * address.
+ *
+ * This version of ioremap ensures that the memory is marked cachable by
+ * the CPU.  Also enables full write-combining.	 Useful for some
+ * memory-like regions on I/O busses.
+ */
+#define ioremap_cachable(offset, size)					\
+	__ioremap_mode((offset), (size), _page_cachable_default)
+
+/*
+ * These two are MIPS specific ioremap variant.	 ioremap_cacheable_cow
+ * requests a cachable mapping, ioremap_uncached_accelerated requests a
+ * mapping using the uncached accelerated mode which isn't supported on
+ * all processors.
+ */
+#define ioremap_cacheable_cow(offset, size)				\
+	__ioremap_mode((offset), (size), _CACHE_CACHABLE_COW)
+#define ioremap_uncached_accelerated(offset, size)			\
+	__ioremap_mode((offset), (size), _CACHE_UNCACHED_ACCELERATED)
+
+static inline void iounmap(const volatile void __iomem *addr)
+{
+	if (plat_iounmap(addr))
+		return;
+
+#define __IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == CKSEG1)
+
+	if (cpu_has_64bit_addresses ||
+	    (__builtin_constant_p(addr) && __IS_KSEG1(addr)))
+		return;
+
+	__iounmap(addr);
+
+#undef __IS_KSEG1
+}
+
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+#define war_octeon_io_reorder_wmb()		wmb()
+#else
+#define war_octeon_io_reorder_wmb()		do { } while (0)
+#endif
+
+#define __BUILD_MEMORY_SINGLE(pfx, bwlq, type, irq)			\
+									\
+static inline void pfx##write##bwlq(type val,				\
+				    volatile void __iomem *mem)		\
+{									\
+	volatile type *__mem;						\
+	type __val;							\
+									\
+	war_octeon_io_reorder_wmb();					\
+									\
+	__mem = (void *)__swizzle_addr_##bwlq((unsigned long)(mem));	\
+									\
+	__val = pfx##ioswab##bwlq(__mem, val);				\
+									\
+	if (sizeof(type) != sizeof(u64) || sizeof(u64) == sizeof(long)) \
+		*__mem = __val;						\
+	else if (cpu_has_64bits) {					\
+		unsigned long __flags;					\
+		type __tmp;						\
+									\
+		if (irq)						\
+			local_irq_save(__flags);			\
+		__asm__ __volatile__(					\
+			".set	arch=r4000"	"\t\t# __writeq""\n\t"	\
+			"dsll32 %L0, %L0, 0"			"\n\t"	\
+			"dsrl32 %L0, %L0, 0"			"\n\t"	\
+			"dsll32 %M0, %M0, 0"			"\n\t"	\
+			"or	%L0, %L0, %M0"			"\n\t"	\
+			"sd	%L0, %2"			"\n\t"	\
+			".set	mips0"				"\n"	\
+			: "=r" (__tmp)					\
+			: "0" (__val), "m" (*__mem));			\
+		if (irq)						\
+			local_irq_restore(__flags);			\
+	} else								\
+		BUG();							\
+}									\
+									\
+static inline type pfx##read##bwlq(const volatile void __iomem *mem)	\
+{									\
+	volatile type *__mem;						\
+	type __val;							\
+									\
+	__mem = (void *)__swizzle_addr_##bwlq((unsigned long)(mem));	\
+									\
+	if (sizeof(type) != sizeof(u64) || sizeof(u64) == sizeof(long)) \
+		__val = *__mem;						\
+	else if (cpu_has_64bits) {					\
+		unsigned long __flags;					\
+									\
+		if (irq)						\
+			local_irq_save(__flags);			\
+		__asm__ __volatile__(					\
+			".set	arch=r4000"	"\t\t# __readq" "\n\t"	\
+			"ld	%L0, %1"			"\n\t"	\
+			"dsra32 %M0, %L0, 0"			"\n\t"	\
+			"sll	%L0, %L0, 0"			"\n\t"	\
+			".set	mips0"				"\n"	\
+			: "=r" (__val)					\
+			: "m" (*__mem));				\
+		if (irq)						\
+			local_irq_restore(__flags);			\
+	} else {							\
+		__val = 0;						\
+		BUG();							\
+	}								\
+									\
+	return pfx##ioswab##bwlq(__mem, __val);				\
+}
+
+#define __BUILD_IOPORT_SINGLE(pfx, bwlq, type, p, slow)			\
+									\
+static inline void pfx##out##bwlq##p(type val, unsigned long port)	\
+{									\
+	volatile type *__addr;						\
+	type __val;							\
+									\
+	war_octeon_io_reorder_wmb();					\
+									\
+	__addr = (void *)__swizzle_addr_##bwlq(mips_io_port_base + port); \
+									\
+	__val = pfx##ioswab##bwlq(__addr, val);				\
+									\
+	/* Really, we want this to be atomic */				\
+	BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long));		\
+									\
+	*__addr = __val;						\
+	slow;								\
+}									\
+									\
+static inline type pfx##in##bwlq##p(unsigned long port)			\
+{									\
+	volatile type *__addr;						\
+	type __val;							\
+									\
+	__addr = (void *)__swizzle_addr_##bwlq(mips_io_port_base + port); \
+									\
+	BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long));		\
+									\
+	__val = *__addr;						\
+	slow;								\
+									\
+	return pfx##ioswab##bwlq(__addr, __val);			\
+}
+
+#define __BUILD_MEMORY_PFX(bus, bwlq, type)				\
+									\
+__BUILD_MEMORY_SINGLE(bus, bwlq, type, 1)
+
+#define BUILDIO_MEM(bwlq, type)						\
+									\
+__BUILD_MEMORY_PFX(__raw_, bwlq, type)					\
+__BUILD_MEMORY_PFX(, bwlq, type)					\
+__BUILD_MEMORY_PFX(__mem_, bwlq, type)					\
+
+BUILDIO_MEM(b, u8)
+BUILDIO_MEM(w, u16)
+BUILDIO_MEM(l, u32)
+BUILDIO_MEM(q, u64)
+
+#define __BUILD_IOPORT_PFX(bus, bwlq, type)				\
+	__BUILD_IOPORT_SINGLE(bus, bwlq, type, ,)			\
+	__BUILD_IOPORT_SINGLE(bus, bwlq, type, _p, SLOW_DOWN_IO)
+
+#define BUILDIO_IOPORT(bwlq, type)					\
+	__BUILD_IOPORT_PFX(, bwlq, type)				\
+	__BUILD_IOPORT_PFX(__mem_, bwlq, type)
+
+BUILDIO_IOPORT(b, u8)
+BUILDIO_IOPORT(w, u16)
+BUILDIO_IOPORT(l, u32)
+#ifdef CONFIG_64BIT
+BUILDIO_IOPORT(q, u64)
+#endif
+
+#define __BUILDIO(bwlq, type)						\
+									\
+__BUILD_MEMORY_SINGLE(____raw_, bwlq, type, 0)
+
+__BUILDIO(q, u64)
+
+#define readb_relaxed			readb
+#define readw_relaxed			readw
+#define readl_relaxed			readl
+#define readq_relaxed			readq
+
+#define writeb_relaxed			writeb
+#define writew_relaxed			writew
+#define writel_relaxed			writel
+#define writeq_relaxed			writeq
+
+#define readb_be(addr)							\
+	__raw_readb((__force unsigned *)(addr))
+#define readw_be(addr)							\
+	be16_to_cpu(__raw_readw((__force unsigned *)(addr)))
+#define readl_be(addr)							\
+	be32_to_cpu(__raw_readl((__force unsigned *)(addr)))
+#define readq_be(addr)							\
+	be64_to_cpu(__raw_readq((__force unsigned *)(addr)))
+
+#define writeb_be(val, addr)						\
+	__raw_writeb((val), (__force unsigned *)(addr))
+#define writew_be(val, addr)						\
+	__raw_writew(cpu_to_be16((val)), (__force unsigned *)(addr))
+#define writel_be(val, addr)						\
+	__raw_writel(cpu_to_be32((val)), (__force unsigned *)(addr))
+#define writeq_be(val, addr)						\
+	__raw_writeq(cpu_to_be64((val)), (__force unsigned *)(addr))
+
+/*
+ * Some code tests for these symbols
+ */
+#define readq				readq
+#define writeq				writeq
+
+#define __BUILD_MEMORY_STRING(bwlq, type)				\
+									\
+static inline void writes##bwlq(volatile void __iomem *mem,		\
+				const void *addr, unsigned int count)	\
+{									\
+	const volatile type *__addr = addr;				\
+									\
+	while (count--) {						\
+		__mem_write##bwlq(*__addr, mem);			\
+		__addr++;						\
+	}								\
+}									\
+									\
+static inline void reads##bwlq(volatile void __iomem *mem, void *addr,	\
+			       unsigned int count)			\
+{									\
+	volatile type *__addr = addr;					\
+									\
+	while (count--) {						\
+		*__addr = __mem_read##bwlq(mem);			\
+		__addr++;						\
+	}								\
+}
+
+#define __BUILD_IOPORT_STRING(bwlq, type)				\
+									\
+static inline void outs##bwlq(unsigned long port, const void *addr,	\
+			      unsigned int count)			\
+{									\
+	const volatile type *__addr = addr;				\
+									\
+	while (count--) {						\
+		__mem_out##bwlq(*__addr, port);				\
+		__addr++;						\
+	}								\
+}									\
+									\
+static inline void ins##bwlq(unsigned long port, void *addr,		\
+			     unsigned int count)			\
+{									\
+	volatile type *__addr = addr;					\
+									\
+	while (count--) {						\
+		*__addr = __mem_in##bwlq(port);				\
+		__addr++;						\
+	}								\
+}
+
+#define BUILDSTRING(bwlq, type)						\
+									\
+__BUILD_MEMORY_STRING(bwlq, type)					\
+__BUILD_IOPORT_STRING(bwlq, type)
+
+BUILDSTRING(b, u8)
+BUILDSTRING(w, u16)
+BUILDSTRING(l, u32)
+#ifdef CONFIG_64BIT
+BUILDSTRING(q, u64)
+#endif
+
+
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+#define mmiowb() wmb()
+#else
+/* Depends on MIPS II instruction set */
+#define mmiowb() asm volatile ("sync" ::: "memory")
+#endif
+
+static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
+{
+	memset((void __force *) addr, val, count);
+}
+static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count)
+{
+	memcpy(dst, (void __force *) src, count);
+}
+static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
+{
+	memcpy((void __force *) dst, src, count);
+}
+
+/*
+ * The caches on some architectures aren't dma-coherent and have need to
+ * handle this in software.  There are three types of operations that
+ * can be applied to dma buffers.
+ *
+ *  - dma_cache_wback_inv(start, size) makes caches and coherent by
+ *    writing the content of the caches back to memory, if necessary.
+ *    The function also invalidates the affected part of the caches as
+ *    necessary before DMA transfers from outside to memory.
+ *  - dma_cache_wback(start, size) makes caches and coherent by
+ *    writing the content of the caches back to memory, if necessary.
+ *    The function also invalidates the affected part of the caches as
+ *    necessary before DMA transfers from outside to memory.
+ *  - dma_cache_inv(start, size) invalidates the affected parts of the
+ *    caches.  Dirty lines of the caches may be written back or simply
+ *    be discarded.  This operation is necessary before dma operations
+ *    to the memory.
+ *
+ * This API used to be exported; it now is for arch code internal use only.
+ */
+#if defined(CONFIG_DMA_NONCOHERENT) || defined(CONFIG_DMA_MAYBE_COHERENT)
+
+extern void (*_dma_cache_wback_inv)(unsigned long start, unsigned long size);
+extern void (*_dma_cache_wback)(unsigned long start, unsigned long size);
+extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
+
+#define dma_cache_wback_inv(start, size)	_dma_cache_wback_inv(start, size)
+#define dma_cache_wback(start, size)		_dma_cache_wback(start, size)
+#define dma_cache_inv(start, size)		_dma_cache_inv(start, size)
+
+#else /* Sane hardware */
+
+#define dma_cache_wback_inv(start,size) \
+	do { (void) (start); (void) (size); } while (0)
+#define dma_cache_wback(start,size)	\
+	do { (void) (start); (void) (size); } while (0)
+#define dma_cache_inv(start,size)	\
+	do { (void) (start); (void) (size); } while (0)
+
+#endif /* CONFIG_DMA_NONCOHERENT || CONFIG_DMA_MAYBE_COHERENT */
+
+/*
+ * Read a 32-bit register that requires a 64-bit read cycle on the bus.
+ * Avoid interrupt mucking, just adjust the address for 4-byte access.
+ * Assume the addresses are 8-byte aligned.
+ */
+#ifdef __MIPSEB__
+#define __CSR_32_ADJUST 4
+#else
+#define __CSR_32_ADJUST 0
+#endif
+
+#define csr_out32(v, a) (*(volatile u32 *)((unsigned long)(a) + __CSR_32_ADJUST) = (v))
+#define csr_in32(a)    (*(volatile u32 *)((unsigned long)(a) + __CSR_32_ADJUST))
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)	__va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)	p
+
+#endif /* _ASM_IO_H */

arch/mips/include/asm/ip32/crime.h

@@ -0,0 +1,158 @@
+/*
+ * Definitions for the SGI CRIME (CPU, Rendering, Interconnect and Memory
+ * Engine)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000 Harald Koerfgen
+ */
+
+#ifndef __ASM_CRIME_H__
+#define __ASM_CRIME_H__
+
+/*
+ * Address map
+ */
+#define CRIME_BASE	0x14000000	/* physical */
+
+struct sgi_crime {
+	volatile unsigned long id;
+#define CRIME_ID_MASK			0xff
+#define CRIME_ID_IDBITS			0xf0
+#define CRIME_ID_IDVALUE		0xa0
+#define CRIME_ID_REV			0x0f
+#define CRIME_REV_PETTY			0x00
+#define CRIME_REV_11			0x11
+#define CRIME_REV_13			0x13
+#define CRIME_REV_14			0x14
+
+	volatile unsigned long control;
+#define CRIME_CONTROL_MASK		0x3fff
+#define CRIME_CONTROL_TRITON_SYSADC	0x2000
+#define CRIME_CONTROL_CRIME_SYSADC	0x1000
+#define CRIME_CONTROL_HARD_RESET	0x0800
+#define CRIME_CONTROL_SOFT_RESET	0x0400
+#define CRIME_CONTROL_DOG_ENA		0x0200
+#define CRIME_CONTROL_ENDIANESS		0x0100
+#define CRIME_CONTROL_ENDIAN_BIG	0x0100
+#define CRIME_CONTROL_ENDIAN_LITTLE	0x0000
+#define CRIME_CONTROL_CQUEUE_HWM	0x000f
+#define CRIME_CONTROL_CQUEUE_SHFT	0
+#define CRIME_CONTROL_WBUF_HWM		0x00f0
+#define CRIME_CONTROL_WBUF_SHFT		8
+
+	volatile unsigned long istat;
+	volatile unsigned long imask;
+	volatile unsigned long soft_int;
+	volatile unsigned long hard_int;
+#define MACE_VID_IN1_INT		BIT(0)
+#define MACE_VID_IN2_INT		BIT(1)
+#define MACE_VID_OUT_INT		BIT(2)
+#define MACE_ETHERNET_INT		BIT(3)
+#define MACE_SUPERIO_INT		BIT(4)
+#define MACE_MISC_INT			BIT(5)
+#define MACE_AUDIO_INT			BIT(6)
+#define MACE_PCI_BRIDGE_INT		BIT(7)
+#define MACEPCI_SCSI0_INT		BIT(8)
+#define MACEPCI_SCSI1_INT		BIT(9)
+#define MACEPCI_SLOT0_INT		BIT(10)
+#define MACEPCI_SLOT1_INT		BIT(11)
+#define MACEPCI_SLOT2_INT		BIT(12)
+#define MACEPCI_SHARED0_INT		BIT(13)
+#define MACEPCI_SHARED1_INT		BIT(14)
+#define MACEPCI_SHARED2_INT		BIT(15)
+#define CRIME_GBE0_INT			BIT(16)
+#define CRIME_GBE1_INT			BIT(17)
+#define CRIME_GBE2_INT			BIT(18)
+#define CRIME_GBE3_INT			BIT(19)
+#define CRIME_CPUERR_INT		BIT(20)
+#define CRIME_MEMERR_INT		BIT(21)
+#define CRIME_RE_EMPTY_E_INT		BIT(22)
+#define CRIME_RE_FULL_E_INT		BIT(23)
+#define CRIME_RE_IDLE_E_INT		BIT(24)
+#define CRIME_RE_EMPTY_L_INT		BIT(25)
+#define CRIME_RE_FULL_L_INT		BIT(26)
+#define CRIME_RE_IDLE_L_INT		BIT(27)
+#define CRIME_SOFT0_INT			BIT(28)
+#define CRIME_SOFT1_INT			BIT(29)
+#define CRIME_SOFT2_INT			BIT(30)
+#define CRIME_SYSCORERR_INT		CRIME_SOFT2_INT
+#define CRIME_VICE_INT			BIT(31)
+/* Masks for deciding who handles the interrupt */
+#define CRIME_MACE_INT_MASK		0x8f
+#define CRIME_MACEISA_INT_MASK		0x70
+#define CRIME_MACEPCI_INT_MASK		0xff00
+#define CRIME_CRIME_INT_MASK		0xffff0000
+
+	volatile unsigned long watchdog;
+#define CRIME_DOG_POWER_ON_RESET	0x00010000
+#define CRIME_DOG_WARM_RESET		0x00080000
+#define CRIME_DOG_TIMEOUT		(CRIME_DOG_POWER_ON_RESET|CRIME_DOG_WARM_RESET)
+#define CRIME_DOG_VALUE			0x00007fff
+
+	volatile unsigned long timer;
+#define CRIME_MASTER_FREQ		66666500	/* Crime upcounter frequency */
+#define CRIME_NS_PER_TICK		15		/* for delay_calibrate */
+
+	volatile unsigned long cpu_error_addr;
+#define CRIME_CPU_ERROR_ADDR_MASK	0x3ffffffff
+
+	volatile unsigned long cpu_error_stat;
+#define CRIME_CPU_ERROR_MASK		0x7		/* cpu error stat is 3 bits */
+#define CRIME_CPU_ERROR_CPU_ILL_ADDR	0x4
+#define CRIME_CPU_ERROR_VICE_WRT_PRTY	0x2
+#define CRIME_CPU_ERROR_CPU_WRT_PRTY	0x1
+
+	unsigned long _pad0[54];
+
+	volatile unsigned long mc_ctrl;
+	volatile unsigned long bank_ctrl[8];
+#define CRIME_MEM_BANK_CONTROL_MASK		0x11f	/* 9 bits 7:5 reserved */
+#define CRIME_MEM_BANK_CONTROL_ADDR		0x01f
+#define CRIME_MEM_BANK_CONTROL_SDRAM_SIZE	0x100
+#define CRIME_MAXBANKS				8
+
+	volatile unsigned long mem_ref_counter;
+#define CRIME_MEM_REF_COUNTER_MASK	0x3ff		/* 10bit */
+
+	volatile unsigned long mem_error_stat;
+#define CRIME_MEM_ERROR_STAT_MASK	0x0ff7ffff	/* 28-bit register */
+#define CRIME_MEM_ERROR_MACE_ID		0x0000007f
+#define CRIME_MEM_ERROR_MACE_ACCESS	0x00000080
+#define CRIME_MEM_ERROR_RE_ID		0x00007f00
+#define CRIME_MEM_ERROR_RE_ACCESS	0x00008000
+#define CRIME_MEM_ERROR_GBE_ACCESS	0x00010000
+#define CRIME_MEM_ERROR_VICE_ACCESS	0x00020000
+#define CRIME_MEM_ERROR_CPU_ACCESS	0x00040000
+#define CRIME_MEM_ERROR_RESERVED	0x00080000
+#define CRIME_MEM_ERROR_SOFT_ERR	0x00100000
+#define CRIME_MEM_ERROR_HARD_ERR	0x00200000
+#define CRIME_MEM_ERROR_MULTIPLE	0x00400000
+#define CRIME_MEM_ERROR_ECC		0x01800000
+#define CRIME_MEM_ERROR_MEM_ECC_RD	0x00800000
+#define CRIME_MEM_ERROR_MEM_ECC_RMW	0x01000000
+#define CRIME_MEM_ERROR_INV		0x0e000000
+#define CRIME_MEM_ERROR_INV_MEM_ADDR_RD 0x02000000
+#define CRIME_MEM_ERROR_INV_MEM_ADDR_WR 0x04000000
+#define CRIME_MEM_ERROR_INV_MEM_ADDR_RMW 0x08000000
+
+	volatile unsigned long mem_error_addr;
+#define CRIME_MEM_ERROR_ADDR_MASK	0x3fffffff
+
+	volatile unsigned long mem_ecc_syn;
+#define CRIME_MEM_ERROR_ECC_SYN_MASK	0xffffffff
+
+	volatile unsigned long mem_ecc_chk;
+#define CRIME_MEM_ERROR_ECC_CHK_MASK	0xffffffff
+
+	volatile unsigned long mem_ecc_repl;
+#define CRIME_MEM_ERROR_ECC_REPL_MASK	0xffffffff
+};
+
+extern struct sgi_crime __iomem *crime;
+
+#define CRIME_HI_MEM_BASE	0x40000000	/* this is where whole 1G of RAM is mapped */
+
+#endif /* __ASM_CRIME_H__ */

arch/mips/include/asm/ip32/ip32_ints.h

@@ -0,0 +1,114 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000 Harald Koerfgen
+ */
+
+#ifndef __ASM_IP32_INTS_H
+#define __ASM_IP32_INTS_H
+
+#include <asm/irq.h>
+
+/*
+ * This list reflects the assignment of interrupt numbers to
+ * interrupting events.	 Order is fairly irrelevant to handling
+ * priority.  This differs from irix.
+ */
+
+enum ip32_irq_no {
+	/*
+	 * CPU interrupts are 0 ... 7
+	 */
+
+	CRIME_IRQ_BASE			= MIPS_CPU_IRQ_BASE + 8,
+
+	/*
+	 * MACE
+	 */
+	MACE_VID_IN1_IRQ		= CRIME_IRQ_BASE,
+	MACE_VID_IN2_IRQ,
+	MACE_VID_OUT_IRQ,
+	MACE_ETHERNET_IRQ,
+	/* SUPERIO, MISC, and AUDIO are MACEISA */
+	__MACE_SUPERIO,
+	__MACE_MISC,
+	__MACE_AUDIO,
+	MACE_PCI_BRIDGE_IRQ,
+
+	/*
+	 * MACEPCI
+	 */
+	MACEPCI_SCSI0_IRQ,
+	MACEPCI_SCSI1_IRQ,
+	MACEPCI_SLOT0_IRQ,
+	MACEPCI_SLOT1_IRQ,
+	MACEPCI_SLOT2_IRQ,
+	MACEPCI_SHARED0_IRQ,
+	MACEPCI_SHARED1_IRQ,
+	MACEPCI_SHARED2_IRQ,
+
+	/*
+	 * CRIME
+	 */
+	CRIME_GBE0_IRQ,
+	CRIME_GBE1_IRQ,
+	CRIME_GBE2_IRQ,
+	CRIME_GBE3_IRQ,
+	CRIME_CPUERR_IRQ,
+	CRIME_MEMERR_IRQ,
+	CRIME_RE_EMPTY_E_IRQ,
+	CRIME_RE_FULL_E_IRQ,
+	CRIME_RE_IDLE_E_IRQ,
+	CRIME_RE_EMPTY_L_IRQ,
+	CRIME_RE_FULL_L_IRQ,
+	CRIME_RE_IDLE_L_IRQ,
+	CRIME_SOFT0_IRQ,
+	CRIME_SOFT1_IRQ,
+	CRIME_SOFT2_IRQ,
+	CRIME_SYSCORERR_IRQ		= CRIME_SOFT2_IRQ,
+	CRIME_VICE_IRQ,
+
+	/*
+	 * MACEISA
+	 */
+	MACEISA_AUDIO_SW_IRQ,
+	MACEISA_AUDIO_SC_IRQ,
+	MACEISA_AUDIO1_DMAT_IRQ,
+	MACEISA_AUDIO1_OF_IRQ,
+	MACEISA_AUDIO2_DMAT_IRQ,
+	MACEISA_AUDIO2_MERR_IRQ,
+	MACEISA_AUDIO3_DMAT_IRQ,
+	MACEISA_AUDIO3_MERR_IRQ,
+	MACEISA_RTC_IRQ,
+	MACEISA_KEYB_IRQ,
+	/* MACEISA_KEYB_POLL is not an IRQ */
+	__MACEISA_KEYB_POLL,
+	MACEISA_MOUSE_IRQ,
+	/* MACEISA_MOUSE_POLL is not an IRQ */
+	__MACEISA_MOUSE_POLL,
+	MACEISA_TIMER0_IRQ,
+	MACEISA_TIMER1_IRQ,
+	MACEISA_TIMER2_IRQ,
+	MACEISA_PARALLEL_IRQ,
+	MACEISA_PAR_CTXA_IRQ,
+	MACEISA_PAR_CTXB_IRQ,
+	MACEISA_PAR_MERR_IRQ,
+	MACEISA_SERIAL1_IRQ,
+	MACEISA_SERIAL1_TDMAT_IRQ,
+	MACEISA_SERIAL1_TDMAPR_IRQ,
+	MACEISA_SERIAL1_TDMAME_IRQ,
+	MACEISA_SERIAL1_RDMAT_IRQ,
+	MACEISA_SERIAL1_RDMAOR_IRQ,
+	MACEISA_SERIAL2_IRQ,
+	MACEISA_SERIAL2_TDMAT_IRQ,
+	MACEISA_SERIAL2_TDMAPR_IRQ,
+	MACEISA_SERIAL2_TDMAME_IRQ,
+	MACEISA_SERIAL2_RDMAT_IRQ,
+	MACEISA_SERIAL2_RDMAOR_IRQ,
+
+	IP32_IRQ_MAX			= MACEISA_SERIAL2_RDMAOR_IRQ
+};
+
+#endif /* __ASM_IP32_INTS_H */

arch/mips/include/asm/ip32/mace.h

@@ -0,0 +1,365 @@
+/*
+ * Definitions for the SGI MACE (Multimedia, Audio and Communications Engine)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000 Harald Koerfgen
+ * Copyright (C) 2004 Ladislav Michl
+ */
+
+#ifndef __ASM_MACE_H__
+#define __ASM_MACE_H__
+
+/*
+ * Address map
+ */
+#define MACE_BASE	0x1f000000	/* physical */
+
+/*
+ * PCI interface
+ */
+struct mace_pci {
+	volatile unsigned int error_addr;
+	volatile unsigned int error;
+#define MACEPCI_ERROR_MASTER_ABORT		BIT(31)
+#define MACEPCI_ERROR_TARGET_ABORT		BIT(30)
+#define MACEPCI_ERROR_DATA_PARITY_ERR		BIT(29)
+#define MACEPCI_ERROR_RETRY_ERR			BIT(28)
+#define MACEPCI_ERROR_ILLEGAL_CMD		BIT(27)
+#define MACEPCI_ERROR_SYSTEM_ERR		BIT(26)
+#define MACEPCI_ERROR_INTERRUPT_TEST		BIT(25)
+#define MACEPCI_ERROR_PARITY_ERR		BIT(24)
+#define MACEPCI_ERROR_OVERRUN			BIT(23)
+#define MACEPCI_ERROR_RSVD			BIT(22)
+#define MACEPCI_ERROR_MEMORY_ADDR		BIT(21)
+#define MACEPCI_ERROR_CONFIG_ADDR		BIT(20)
+#define MACEPCI_ERROR_MASTER_ABORT_ADDR_VALID	BIT(19)
+#define MACEPCI_ERROR_TARGET_ABORT_ADDR_VALID	BIT(18)
+#define MACEPCI_ERROR_DATA_PARITY_ADDR_VALID	BIT(17)
+#define MACEPCI_ERROR_RETRY_ADDR_VALID		BIT(16)
+#define MACEPCI_ERROR_SIG_TABORT		BIT(4)
+#define MACEPCI_ERROR_DEVSEL_MASK		0xc0
+#define MACEPCI_ERROR_DEVSEL_FAST		0
+#define MACEPCI_ERROR_DEVSEL_MED		0x40
+#define MACEPCI_ERROR_DEVSEL_SLOW		0x80
+#define MACEPCI_ERROR_FBB			BIT(1)
+#define MACEPCI_ERROR_66MHZ			BIT(0)
+	volatile unsigned int control;
+#define MACEPCI_CONTROL_INT(x)			BIT(x)
+#define MACEPCI_CONTROL_INT_MASK		0xff
+#define MACEPCI_CONTROL_SERR_ENA		BIT(8)
+#define MACEPCI_CONTROL_ARB_N6			BIT(9)
+#define MACEPCI_CONTROL_PARITY_ERR		BIT(10)
+#define MACEPCI_CONTROL_MRMRA_ENA		BIT(11)
+#define MACEPCI_CONTROL_ARB_N3			BIT(12)
+#define MACEPCI_CONTROL_ARB_N4			BIT(13)
+#define MACEPCI_CONTROL_ARB_N5			BIT(14)
+#define MACEPCI_CONTROL_PARK_LIU		BIT(15)
+#define MACEPCI_CONTROL_INV_INT(x)		BIT(16+x)
+#define MACEPCI_CONTROL_INV_INT_MASK		0x00ff0000
+#define MACEPCI_CONTROL_OVERRUN_INT		BIT(24)
+#define MACEPCI_CONTROL_PARITY_INT		BIT(25)
+#define MACEPCI_CONTROL_SERR_INT		BIT(26)
+#define MACEPCI_CONTROL_IT_INT			BIT(27)
+#define MACEPCI_CONTROL_RE_INT			BIT(28)
+#define MACEPCI_CONTROL_DPED_INT		BIT(29)
+#define MACEPCI_CONTROL_TAR_INT			BIT(30)
+#define MACEPCI_CONTROL_MAR_INT			BIT(31)
+	volatile unsigned int rev;
+	unsigned int _pad[0xcf8/4 - 4];
+	volatile unsigned int config_addr;
+	union {
+		volatile unsigned char b[4];
+		volatile unsigned short w[2];
+		volatile unsigned int l;
+	} config_data;
+};
+#define MACEPCI_LOW_MEMORY		0x1a000000
+#define MACEPCI_LOW_IO			0x18000000
+#define MACEPCI_SWAPPED_VIEW		0
+#define MACEPCI_NATIVE_VIEW		0x40000000
+#define MACEPCI_IO			0x80000000
+#define MACEPCI_HI_MEMORY		0x280000000
+#define MACEPCI_HI_IO			0x100000000
+
+/*
+ * Video interface
+ */
+struct mace_video {
+	unsigned long xxx;	/* later... */
+};
+
+/*
+ * Ethernet interface
+ */
+struct mace_ethernet {
+	volatile u64 mac_ctrl;
+	volatile unsigned long int_stat;
+	volatile unsigned long dma_ctrl;
+	volatile unsigned long timer;
+	volatile unsigned long tx_int_al;
+	volatile unsigned long rx_int_al;
+	volatile unsigned long tx_info;
+	volatile unsigned long tx_info_al;
+	volatile unsigned long rx_buff;
+	volatile unsigned long rx_buff_al1;
+	volatile unsigned long rx_buff_al2;
+	volatile unsigned long diag;
+	volatile unsigned long phy_data;
+	volatile unsigned long phy_regs;
+	volatile unsigned long phy_trans_go;
+	volatile unsigned long backoff_seed;
+	/*===================================*/
+	volatile unsigned long imq_reserved[4];
+	volatile unsigned long mac_addr;
+	volatile unsigned long mac_addr2;
+	volatile unsigned long mcast_filter;
+	volatile unsigned long tx_ring_base;
+	/* Following are read-only registers for debugging */
+	volatile unsigned long tx_pkt1_hdr;
+	volatile unsigned long tx_pkt1_ptr[3];
+	volatile unsigned long tx_pkt2_hdr;
+	volatile unsigned long tx_pkt2_ptr[3];
+	/*===================================*/
+	volatile unsigned long rx_fifo;
+};
+
+/*
+ * Peripherals
+ */
+
+/* Audio registers */
+struct mace_audio {
+	volatile unsigned long control;
+	volatile unsigned long codec_control;		/* codec status control */
+	volatile unsigned long codec_mask;		/* codec status input mask */
+	volatile unsigned long codec_read;		/* codec status read data */
+	struct {
+		volatile unsigned long control;		/* channel control */
+		volatile unsigned long read_ptr;	/* channel read pointer */
+		volatile unsigned long write_ptr;	/* channel write pointer */
+		volatile unsigned long depth;		/* channel depth */
+	} chan[3];
+};
+
+
+/* register definitions for parallel port DMA */
+struct mace_parport {
+	/* 0 - do nothing,
+	 * 1 - pulse terminal count to the device after buffer is drained */
+#define MACEPAR_CONTEXT_LASTFLAG	BIT(63)
+	/* Should not cross 4K page boundary */
+#define MACEPAR_CONTEXT_DATA_BOUND	0x0000000000001000UL
+#define MACEPAR_CONTEXT_DATALEN_MASK	0x00000fff00000000UL
+#define MACEPAR_CONTEXT_DATALEN_SHIFT	32
+	/* Can be arbitrarily aligned on any byte boundary on output,
+	 * 64 byte aligned on input */
+#define MACEPAR_CONTEXT_BASEADDR_MASK	0x00000000ffffffffUL
+	volatile u64 context_a;
+	volatile u64 context_b;
+	/* 0 - mem->device, 1 - device->mem */
+#define MACEPAR_CTLSTAT_DIRECTION	BIT(0)
+	/* 0 - channel frozen, 1 - channel enabled */
+#define MACEPAR_CTLSTAT_ENABLE		BIT(1)
+	/* 0 - channel active, 1 - complete channel reset */
+#define MACEPAR_CTLSTAT_RESET		BIT(2)
+#define MACEPAR_CTLSTAT_CTXB_VALID	BIT(3)
+#define MACEPAR_CTLSTAT_CTXA_VALID	BIT(4)
+	volatile u64 cntlstat;		/* Control/Status register */
+#define MACEPAR_DIAG_CTXINUSE		BIT(0)
+	/* 1 - Dma engine is enabled and processing something */
+#define MACEPAR_DIAG_DMACTIVE		BIT(1)
+	/* Counter of bytes left */
+#define MACEPAR_DIAG_CTRMASK		0x0000000000003ffcUL
+#define MACEPAR_DIAG_CTRSHIFT		2
+	volatile u64 diagnostic;	/* RO: diagnostic register */
+};
+
+/* ISA Control and DMA registers */
+struct mace_isactrl {
+	volatile unsigned long ringbase;
+#define MACEISA_RINGBUFFERS_SIZE	(8 * 4096)
+
+	volatile unsigned long misc;
+#define MACEISA_FLASH_WE		BIT(0)	/* 1=> Enable FLASH writes */
+#define MACEISA_PWD_CLEAR		BIT(1)	/* 1=> PWD CLEAR jumper detected */
+#define MACEISA_NIC_DEASSERT		BIT(2)
+#define MACEISA_NIC_DATA		BIT(3)
+#define MACEISA_LED_RED			BIT(4)	/* 0=> Illuminate red LED */
+#define MACEISA_LED_GREEN		BIT(5)	/* 0=> Illuminate green LED */
+#define MACEISA_DP_RAM_ENABLE		BIT(6)
+
+	volatile unsigned long istat;
+	volatile unsigned long imask;
+#define MACEISA_AUDIO_SW_INT		BIT(0)
+#define MACEISA_AUDIO_SC_INT		BIT(1)
+#define MACEISA_AUDIO1_DMAT_INT		BIT(2)
+#define MACEISA_AUDIO1_OF_INT		BIT(3)
+#define MACEISA_AUDIO2_DMAT_INT		BIT(4)
+#define MACEISA_AUDIO2_MERR_INT		BIT(5)
+#define MACEISA_AUDIO3_DMAT_INT		BIT(6)
+#define MACEISA_AUDIO3_MERR_INT		BIT(7)
+#define MACEISA_RTC_INT			BIT(8)
+#define MACEISA_KEYB_INT		BIT(9)
+#define MACEISA_KEYB_POLL_INT		BIT(10)
+#define MACEISA_MOUSE_INT		BIT(11)
+#define MACEISA_MOUSE_POLL_INT		BIT(12)
+#define MACEISA_TIMER0_INT		BIT(13)
+#define MACEISA_TIMER1_INT		BIT(14)
+#define MACEISA_TIMER2_INT		BIT(15)
+#define MACEISA_PARALLEL_INT		BIT(16)
+#define MACEISA_PAR_CTXA_INT		BIT(17)
+#define MACEISA_PAR_CTXB_INT		BIT(18)
+#define MACEISA_PAR_MERR_INT		BIT(19)
+#define MACEISA_SERIAL1_INT		BIT(20)
+#define MACEISA_SERIAL1_TDMAT_INT	BIT(21)
+#define MACEISA_SERIAL1_TDMAPR_INT	BIT(22)
+#define MACEISA_SERIAL1_TDMAME_INT	BIT(23)
+#define MACEISA_SERIAL1_RDMAT_INT	BIT(24)
+#define MACEISA_SERIAL1_RDMAOR_INT	BIT(25)
+#define MACEISA_SERIAL2_INT		BIT(26)
+#define MACEISA_SERIAL2_TDMAT_INT	BIT(27)
+#define MACEISA_SERIAL2_TDMAPR_INT	BIT(28)
+#define MACEISA_SERIAL2_TDMAME_INT	BIT(29)
+#define MACEISA_SERIAL2_RDMAT_INT	BIT(30)
+#define MACEISA_SERIAL2_RDMAOR_INT	BIT(31)
+
+	volatile unsigned long _pad[0x2000/8 - 4];
+
+	volatile unsigned long dp_ram[0x400];
+	struct mace_parport parport;
+};
+
+/* Keyboard & Mouse registers
+ * -> drivers/input/serio/maceps2.c */
+struct mace_ps2port {
+	volatile unsigned long tx;
+	volatile unsigned long rx;
+	volatile unsigned long control;
+	volatile unsigned long status;
+};
+
+struct mace_ps2 {
+	struct mace_ps2port keyb;
+	struct mace_ps2port mouse;
+};
+
+/* I2C registers
+ * -> drivers/i2c/algos/i2c-algo-sgi.c */
+struct mace_i2c {
+	volatile unsigned long config;
+#define MACEI2C_RESET		BIT(0)
+#define MACEI2C_FAST		BIT(1)
+#define MACEI2C_DATA_OVERRIDE	BIT(2)
+#define MACEI2C_CLOCK_OVERRIDE	BIT(3)
+#define MACEI2C_DATA_STATUS	BIT(4)
+#define MACEI2C_CLOCK_STATUS	BIT(5)
+	volatile unsigned long control;
+	volatile unsigned long data;
+};
+
+/* Timer registers */
+typedef union {
+	volatile unsigned long ust_msc;
+	struct reg {
+		volatile unsigned int ust;
+		volatile unsigned int msc;
+	} reg;
+} timer_reg;
+
+struct mace_timers {
+	volatile unsigned long ust;
+#define MACE_UST_PERIOD_NS	960
+
+	volatile unsigned long compare1;
+	volatile unsigned long compare2;
+	volatile unsigned long compare3;
+
+	timer_reg audio_in;
+	timer_reg audio_out1;
+	timer_reg audio_out2;
+	timer_reg video_in1;
+	timer_reg video_in2;
+	timer_reg video_out;
+};
+
+struct mace_perif {
+	struct mace_audio audio;
+	char _pad0[0x10000 - sizeof(struct mace_audio)];
+
+	struct mace_isactrl ctrl;
+	char _pad1[0x10000 - sizeof(struct mace_isactrl)];
+
+	struct mace_ps2 ps2;
+	char _pad2[0x10000 - sizeof(struct mace_ps2)];
+
+	struct mace_i2c i2c;
+	char _pad3[0x10000 - sizeof(struct mace_i2c)];
+
+	struct mace_timers timers;
+	char _pad4[0x10000 - sizeof(struct mace_timers)];
+};
+
+
+/*
+ * ISA peripherals
+ */
+
+/* Parallel port */
+struct mace_parallel {
+};
+
+struct mace_ecp1284 {	/* later... */
+};
+
+/* Serial port */
+struct mace_serial {
+	volatile unsigned long xxx;	/* later... */
+};
+
+struct mace_isa {
+	struct mace_parallel parallel;
+	char _pad1[0x8000 - sizeof(struct mace_parallel)];
+
+	struct mace_ecp1284 ecp1284;
+	char _pad2[0x8000 - sizeof(struct mace_ecp1284)];
+
+	struct mace_serial serial1;
+	char _pad3[0x8000 - sizeof(struct mace_serial)];
+
+	struct mace_serial serial2;
+	char _pad4[0x8000 - sizeof(struct mace_serial)];
+
+	volatile unsigned char rtc[0x10000];
+};
+
+struct sgi_mace {
+	char _reserved[0x80000];
+
+	struct mace_pci pci;
+	char _pad0[0x80000 - sizeof(struct mace_pci)];
+
+	struct mace_video video_in1;
+	char _pad1[0x80000 - sizeof(struct mace_video)];
+
+	struct mace_video video_in2;
+	char _pad2[0x80000 - sizeof(struct mace_video)];
+
+	struct mace_video video_out;
+	char _pad3[0x80000 - sizeof(struct mace_video)];
+
+	struct mace_ethernet eth;
+	char _pad4[0x80000 - sizeof(struct mace_ethernet)];
+
+	struct mace_perif perif;
+	char _pad5[0x80000 - sizeof(struct mace_perif)];
+
+	struct mace_isa isa;
+	char _pad6[0x80000 - sizeof(struct mace_isa)];
+};
+
+extern struct sgi_mace __iomem *mace;
+
+#endif /* __ASM_MACE_H__ */