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-rw-r--r--arch/x86/boot/copy.S40
1 files changed, 14 insertions, 26 deletions
diff --git a/arch/x86/boot/copy.S b/arch/x86/boot/copy.S
index ef50c84e8b4b..11f272c6f5e9 100644
--- a/arch/x86/boot/copy.S
+++ b/arch/x86/boot/copy.S
@@ -8,6 +8,8 @@
8 * 8 *
9 * ----------------------------------------------------------------------- */ 9 * ----------------------------------------------------------------------- */
10 10
11#include <linux/linkage.h>
12
11/* 13/*
12 * Memory copy routines 14 * Memory copy routines
13 */ 15 */
@@ -15,9 +17,7 @@
15 .code16gcc 17 .code16gcc
16 .text 18 .text
17 19
18 .globl memcpy 20GLOBAL(memcpy)
19 .type memcpy, @function
20memcpy:
21 pushw %si 21 pushw %si
22 pushw %di 22 pushw %di
23 movw %ax, %di 23 movw %ax, %di
@@ -31,11 +31,9 @@ memcpy:
31 popw %di 31 popw %di
32 popw %si 32 popw %si
33 ret 33 ret
34 .size memcpy, .-memcpy 34ENDPROC(memcpy)
35 35
36 .globl memset 36GLOBAL(memset)
37 .type memset, @function
38memset:
39 pushw %di 37 pushw %di
40 movw %ax, %di 38 movw %ax, %di
41 movzbl %dl, %eax 39 movzbl %dl, %eax
@@ -48,52 +46,42 @@ memset:
48 rep; stosb 46 rep; stosb
49 popw %di 47 popw %di
50 ret 48 ret
51 .size memset, .-memset 49ENDPROC(memset)
52 50
53 .globl copy_from_fs 51GLOBAL(copy_from_fs)
54 .type copy_from_fs, @function
55copy_from_fs:
56 pushw %ds 52 pushw %ds
57 pushw %fs 53 pushw %fs
58 popw %ds 54 popw %ds
59 call memcpy 55 call memcpy
60 popw %ds 56 popw %ds
61 ret 57 ret
62 .size copy_from_fs, .-copy_from_fs 58ENDPROC(copy_from_fs)
63 59
64 .globl copy_to_fs 60GLOBAL(copy_to_fs)
65 .type copy_to_fs, @function
66copy_to_fs:
67 pushw %es 61 pushw %es
68 pushw %fs 62 pushw %fs
69 popw %es 63 popw %es
70 call memcpy 64 call memcpy
71 popw %es 65 popw %es
72 ret 66 ret
73 .size copy_to_fs, .-copy_to_fs 67ENDPROC(copy_to_fs)
74 68
75#if 0 /* Not currently used, but can be enabled as needed */ 69#if 0 /* Not currently used, but can be enabled as needed */
76 70GLOBAL(copy_from_gs)
77 .globl copy_from_gs
78 .type copy_from_gs, @function
79copy_from_gs:
80 pushw %ds 71 pushw %ds
81 pushw %gs 72 pushw %gs
82 popw %ds 73 popw %ds
83 call memcpy 74 call memcpy
84 popw %ds 75 popw %ds
85 ret 76 ret
86 .size copy_from_gs, .-copy_from_gs 77ENDPROC(copy_from_gs)
87 .globl copy_to_gs
88 78
89 .type copy_to_gs, @function 79GLOBAL(copy_to_gs)
90copy_to_gs:
91 pushw %es 80 pushw %es
92 pushw %gs 81 pushw %gs
93 popw %es 82 popw %es
94 call memcpy 83 call memcpy
95 popw %es 84 popw %es
96 ret 85 ret
97 .size copy_to_gs, .-copy_to_gs 86ENDPROC(copy_to_gs)
98
99#endif 87#endif