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authorJeremy Fitzhardinge <jeremy@goop.org>2008-01-30 07:32:42 -0500
committerIngo Molnar <mingo@elte.hu>2008-01-30 07:32:42 -0500
commit345b904c3f7c24fbfadfee7cddd5896d13b176d9 (patch)
tree4911361d43625a3d05e29149186ec286c3e5f1e7 /include/asm-x86/page_32.h
parent83a5101bf2fa7dcf09ffd436078a021d32c97f85 (diff)
x86: page.h: unify page copying and clearing
# HG changeset patch # User Jeremy Fitzhardinge <jeremy@xensource.com> # Date 1199317362 28800 # Node ID 4d9a413a0f4c1d98dbea704f0366457b5117045d # Parent ba0ec40a50a7aef1a3153cea124c35e261f5a2df x86: page.h: unify page copying and clearing Move, and to some extent unify, the various page copying and clearing functions. The only unification here is that both architectures use the same function for copying/clearing user and kernel pages. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/page_32.h')
-rw-r--r--include/asm-x86/page_32.h53
1 files changed, 0 insertions, 53 deletions
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h
index 69e520059b2..b4750ef4492 100644
--- a/include/asm-x86/page_32.h
+++ b/include/asm-x86/page_32.h
@@ -4,59 +4,6 @@
4#ifdef __KERNEL__ 4#ifdef __KERNEL__
5#ifndef __ASSEMBLY__ 5#ifndef __ASSEMBLY__
6 6
7#include <linux/string.h>
8
9#ifdef CONFIG_X86_USE_3DNOW
10
11#include <asm/mmx.h>
12
13static inline void clear_page(void *page)
14{
15 mmx_clear_page(page);
16}
17
18static inline void copy_page(void *to, void *from)
19{
20 mmx_copy_page(to, from);
21}
22
23#else
24
25/*
26 * On older X86 processors it's not a win to use MMX here it seems.
27 * Maybe the K6-III ?
28 */
29
30static inline void clear_page(void *page)
31{
32 memset(page, 0, PAGE_SIZE);
33}
34
35static inline void copy_page(void *to, void *from)
36{
37 memcpy(to, from, PAGE_SIZE);
38}
39
40#endif
41
42struct page;
43
44static void inline clear_user_page(void *page, unsigned long vaddr,
45 struct page *pg)
46{
47 clear_page(page);
48}
49
50static void inline copy_user_page(void *to, void *from, unsigned long vaddr,
51 struct page *topage)
52{
53 copy_page(to, from);
54}
55
56#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
57 alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
58#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
59
60/* 7/*
61 * These are used to make use of C type-checking.. 8 * These are used to make use of C type-checking..
62 */ 9 */