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Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mm/copypage-fa.c')
-rw-r--r--ANDROID_3.4.5/arch/arm/mm/copypage-fa.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mm/copypage-fa.c b/ANDROID_3.4.5/arch/arm/mm/copypage-fa.c
deleted file mode 100644
index d130a5ec..00000000
--- a/ANDROID_3.4.5/arch/arm/mm/copypage-fa.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * linux/arch/arm/lib/copypage-fa.S
- *
- * Copyright (C) 2005 Faraday Corp.
- * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
- *
- * Based on copypage-v4wb.S:
- * Copyright (C) 1995-1999 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.
- */
-#include <linux/init.h>
-#include <linux/highmem.h>
-
-/*
- * Faraday optimised copy_user_page
- */
-static void __naked
-fa_copy_user_page(void *kto, const void *kfrom)
-{
- asm("\
- stmfd sp!, {r4, lr} @ 2\n\
- mov r2, %0 @ 1\n\
-1: ldmia r1!, {r3, r4, ip, lr} @ 4\n\
- stmia r0, {r3, r4, ip, lr} @ 4\n\
- mcr p15, 0, r0, c7, c14, 1 @ 1 clean and invalidate D line\n\
- add r0, r0, #16 @ 1\n\
- ldmia r1!, {r3, r4, ip, lr} @ 4\n\
- stmia r0, {r3, r4, ip, lr} @ 4\n\
- mcr p15, 0, r0, c7, c14, 1 @ 1 clean and invalidate D line\n\
- add r0, r0, #16 @ 1\n\
- subs r2, r2, #1 @ 1\n\
- bne 1b @ 1\n\
- mcr p15, 0, r2, c7, c10, 4 @ 1 drain WB\n\
- ldmfd sp!, {r4, pc} @ 3"
- :
- : "I" (PAGE_SIZE / 32));
-}
-
-void fa_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);
- fa_copy_user_page(kto, kfrom);
- kunmap_atomic(kfrom);
- kunmap_atomic(kto);
-}
-
-/*
- * Faraday optimised clear_user_page
- *
- * Same story as above.
- */
-void fa_clear_user_highpage(struct page *page, unsigned long vaddr)
-{
- void *ptr, *kaddr = kmap_atomic(page);
- asm volatile("\
- mov r1, %2 @ 1\n\
- mov r2, #0 @ 1\n\
- mov r3, #0 @ 1\n\
- mov ip, #0 @ 1\n\
- mov lr, #0 @ 1\n\
-1: stmia %0, {r2, r3, ip, lr} @ 4\n\
- mcr p15, 0, %0, c7, c14, 1 @ 1 clean and invalidate D line\n\
- add %0, %0, #16 @ 1\n\
- stmia %0, {r2, r3, ip, lr} @ 4\n\
- mcr p15, 0, %0, c7, c14, 1 @ 1 clean and invalidate D line\n\
- add %0, %0, #16 @ 1\n\
- subs r1, r1, #1 @ 1\n\
- bne 1b @ 1\n\
- mcr p15, 0, r1, c7, c10, 4 @ 1 drain WB"
- : "=r" (ptr)
- : "0" (kaddr), "I" (PAGE_SIZE / 32)
- : "r1", "r2", "r3", "ip", "lr");
- kunmap_atomic(kaddr);
-}
-
-struct cpu_user_fns fa_user_fns __initdata = {
- .cpu_clear_user_highpage = fa_clear_user_highpage,
- .cpu_copy_user_highpage = fa_copy_user_highpage,
-};