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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/arm/mm/copypage-feroceon.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (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.c112
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,
-};
-