AetherDroid/android_kernel_samsung_on5xelte
1
0
Fork 0
mirror of https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git synced 2025-09-08 17:18:05 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fixed MTP to work with TWRP

Browse source
This commit is contained in:
awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

46
arch/arm64/lib/copy_page.S Normal file
View file

@ -0,0 +1,46 @@
/*
* Copyright (C) 2012 ARM Ltd.
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <linux/linkage.h>
#include <linux/const.h>
#include <asm/assembler.h>
#include <asm/page.h>
/*
* Copy a page from src to dest (both are page aligned)
*
* Parameters:
* x0 - dest
* x1 - src
*/
ENTRY(copy_page)
/* Assume cache line size is 64 bytes. */
prfm pldl1strm, [x1, #64]
1: ldp x2, x3, [x1]
ldp x4, x5, [x1, #16]
ldp x6, x7, [x1, #32]
ldp x8, x9, [x1, #48]
add x1, x1, #64
prfm pldl1strm, [x1, #64]
stnp x2, x3, [x0]
stnp x4, x5, [x0, #16]
stnp x6, x7, [x0, #32]
stnp x8, x9, [x0, #48]
add x0, x0, #64
tst x1, #(PAGE_SIZE - 1)
b.ne 1b
ret
ENDPROC(copy_page)