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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
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121
arch/sparc/lib/GENmemcpy.S Normal file
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/* GENmemcpy.S: Generic sparc64 memcpy.
*
* Copyright (C) 2007 David S. Miller (davem@davemloft.net)
*/
#ifdef __KERNEL__
#define GLOBAL_SPARE %g7
#else
#define GLOBAL_SPARE %g5
#endif
#ifndef EX_LD
#define EX_LD(x) x
#endif
#ifndef EX_ST
#define EX_ST(x) x
#endif
#ifndef EX_RETVAL
#define EX_RETVAL(x) x
#endif
#ifndef LOAD
#define LOAD(type,addr,dest) type [addr], dest
#endif
#ifndef STORE
#define STORE(type,src,addr) type src, [addr]
#endif
#ifndef FUNC_NAME
#define FUNC_NAME GENmemcpy
#endif
#ifndef PREAMBLE
#define PREAMBLE
#endif
#ifndef XCC
#define XCC xcc
#endif
.register %g2,#scratch
.register %g3,#scratch
.text
.align 64
.globl FUNC_NAME
.type FUNC_NAME,#function
FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
srlx %o2, 31, %g2
cmp %g2, 0
tne %XCC, 5
PREAMBLE
mov %o0, GLOBAL_SPARE
cmp %o2, 0
be,pn %XCC, 85f
or %o0, %o1, %o3
cmp %o2, 16
blu,a,pn %XCC, 80f
or %o3, %o2, %o3
xor %o0, %o1, %o4
andcc %o4, 0x7, %g0
bne,a,pn %XCC, 90f
sub %o0, %o1, %o3
and %o0, 0x7, %o4
sub %o4, 0x8, %o4
sub %g0, %o4, %o4
sub %o2, %o4, %o2
1: subcc %o4, 1, %o4
EX_LD(LOAD(ldub, %o1, %g1))
EX_ST(STORE(stb, %g1, %o0))
add %o1, 1, %o1
bne,pt %XCC, 1b
add %o0, 1, %o0
andn %o2, 0x7, %g1
sub %o2, %g1, %o2
1: subcc %g1, 0x8, %g1
EX_LD(LOAD(ldx, %o1, %g2))
EX_ST(STORE(stx, %g2, %o0))
add %o1, 0x8, %o1
bne,pt %XCC, 1b
add %o0, 0x8, %o0
brz,pt %o2, 85f
sub %o0, %o1, %o3
ba,a,pt %XCC, 90f
.align 64
80: /* 0 < len <= 16 */
andcc %o3, 0x3, %g0
bne,pn %XCC, 90f
sub %o0, %o1, %o3
1:
subcc %o2, 4, %o2
EX_LD(LOAD(lduw, %o1, %g1))
EX_ST(STORE(stw, %g1, %o1 + %o3))
bgu,pt %XCC, 1b
add %o1, 4, %o1
85: retl
mov EX_RETVAL(GLOBAL_SPARE), %o0
.align 32
90:
subcc %o2, 1, %o2
EX_LD(LOAD(ldub, %o1, %g1))
EX_ST(STORE(stb, %g1, %o1 + %o3))
bgu,pt %XCC, 90b
add %o1, 1, %o1
retl
mov EX_RETVAL(GLOBAL_SPARE), %o0
.size FUNC_NAME, .-FUNC_NAME