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9#include <linux/linkage.h>
10#include <asm/segment.h>
11#include <asm/page_types.h>
12#include <asm/asm-offsets.h>
13#include <asm/processor-flags.h>
14
15.text
16
17ENTRY(swsusp_arch_suspend)
18 movl %esp, saved_context_esp
19 movl %ebx, saved_context_ebx
20 movl %ebp, saved_context_ebp
21 movl %esi, saved_context_esi
22 movl %edi, saved_context_edi
23 pushfl
24 popl saved_context_eflags
25
26 call swsusp_save
27 ret
28
29ENTRY(restore_image)
30 movl mmu_cr4_features, %ecx
31 movl resume_pg_dir, %eax
32 subl $__PAGE_OFFSET, %eax
33 movl %eax, %cr3
34
35 jecxz 1f
36 andl $~(X86_CR4_PGE), %ecx
37 movl %ecx, %cr4;
38 movl %cr3, %eax;
39 movl %eax, %cr3
401:
41 movl restore_pblist, %edx
42 .p2align 4,,7
43
44copy_loop:
45 testl %edx, %edx
46 jz done
47
48 movl pbe_address(%edx), %esi
49 movl pbe_orig_address(%edx), %edi
50
51 movl $1024, %ecx
52 rep
53 movsl
54
55 movl pbe_next(%edx), %edx
56 jmp copy_loop
57 .p2align 4,,7
58
59done:
60
61 movl $swapper_pg_dir, %eax
62 subl $__PAGE_OFFSET, %eax
63 movl %eax, %cr3
64 movl mmu_cr4_features, %ecx
65 jecxz 1f
66 movl %ecx, %cr4;
671:
68
69 movl saved_context_esp, %esp
70 movl saved_context_ebp, %ebp
71 movl saved_context_ebx, %ebx
72 movl saved_context_esi, %esi
73 movl saved_context_edi, %edi
74
75 pushl saved_context_eflags
76 popfl
77
78
79 movl $saved_context, %eax
80 lgdt saved_context_gdt_desc(%eax)
81
82 xorl %eax, %eax
83
84 ret
85