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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/arm/mm/copypage-feroceon.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mm/copypage-feroceon.c')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/mm/copypage-feroceon.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mm/copypage-feroceon.c b/ANDROID_3.4.5/arch/arm/mm/copypage-feroceon.c deleted file mode 100644 index 49ee0c1a..00000000 --- a/ANDROID_3.4.5/arch/arm/mm/copypage-feroceon.c +++ /dev/null @@ -1,112 +0,0 @@ -/* - * linux/arch/arm/mm/copypage-feroceon.S - * - * Copyright (C) 2008 Marvell Semiconductors - * - * 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 handles copy_user_highpage and clear_user_page on Feroceon - * more optimally than the generic implementations. - */ -#include <linux/init.h> -#include <linux/highmem.h> - -static void __naked -feroceon_copy_user_page(void *kto, const void *kfrom) -{ - asm("\ - stmfd sp!, {r4-r9, lr} \n\ - mov ip, %2 \n\ -1: mov lr, r1 \n\ - ldmia r1!, {r2 - r9} \n\ - pld [lr, #32] \n\ - pld [lr, #64] \n\ - pld [lr, #96] \n\ - pld [lr, #128] \n\ - pld [lr, #160] \n\ - pld [lr, #192] \n\ - pld [lr, #224] \n\ - stmia r0, {r2 - r9} \n\ - ldmia r1!, {r2 - r9} \n\ - mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line\n\ - add r0, r0, #32 \n\ - stmia r0, {r2 - r9} \n\ - ldmia r1!, {r2 - r9} \n\ - mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line\n\ - add r0, r0, #32 \n\ - stmia r0, {r2 - r9} \n\ - ldmia r1!, {r2 - r9} \n\ - mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line\n\ - add r0, r0, #32 \n\ - stmia r0, {r2 - r9} \n\ - ldmia r1!, {r2 - r9} \n\ - mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line\n\ - add r0, r0, #32 \n\ - stmia r0, {r2 - r9} \n\ - ldmia r1!, {r2 - r9} \n\ - mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line\n\ - add r0, r0, #32 \n\ - stmia r0, {r2 - r9} \n\ - ldmia r1!, {r2 - r9} \n\ - mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line\n\ - add r0, r0, #32 \n\ - stmia r0, {r2 - r9} \n\ - ldmia r1!, {r2 - r9} \n\ - mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line\n\ - add r0, r0, #32 \n\ - stmia r0, {r2 - r9} \n\ - subs ip, ip, #(32 * 8) \n\ - mcr p15, 0, r0, c7, c14, 1 @ clean and invalidate D line\n\ - add r0, r0, #32 \n\ - bne 1b \n\ - mcr p15, 0, ip, c7, c10, 4 @ drain WB\n\ - ldmfd sp!, {r4-r9, pc}" - : - : "r" (kto), "r" (kfrom), "I" (PAGE_SIZE)); -} - -void feroceon_copy_user_highpage(struct page *to, struct page *from, - unsigned long vaddr, struct vm_area_struct *vma) -{ - void *kto, *kfrom; - - kto = kmap_atomic(to); - kfrom = kmap_atomic(from); - flush_cache_page(vma, vaddr, page_to_pfn(from)); - feroceon_copy_user_page(kto, kfrom); - kunmap_atomic(kfrom); - kunmap_atomic(kto); -} - -void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr) -{ - void *ptr, *kaddr = kmap_atomic(page); - asm volatile ("\ - mov r1, %2 \n\ - mov r2, #0 \n\ - mov r3, #0 \n\ - mov r4, #0 \n\ - mov r5, #0 \n\ - mov r6, #0 \n\ - mov r7, #0 \n\ - mov ip, #0 \n\ - mov lr, #0 \n\ -1: stmia %0, {r2-r7, ip, lr} \n\ - subs r1, r1, #1 \n\ - mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\ - add %0, %0, #32 \n\ - bne 1b \n\ - mcr p15, 0, r1, c7, c10, 4 @ drain WB" - : "=r" (ptr) - : "0" (kaddr), "I" (PAGE_SIZE / 32) - : "r1", "r2", "r3", "r4", "r5", "r6", "r7", "ip", "lr"); - kunmap_atomic(kaddr); -} - -struct cpu_user_fns feroceon_user_fns __initdata = { - .cpu_clear_user_highpage = feroceon_clear_user_highpage, - .cpu_copy_user_highpage = feroceon_copy_user_highpage, -}; - |