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5b83683f HY |
1 | /* |
2 | * Function calling ABI conversion from Linux to EFI for x86_64 | |
3 | * | |
4 | * Copyright (C) 2007 Intel Corp | |
5 | * Bibo Mao <bibo.mao@intel.com> | |
6 | * Huang Ying <ying.huang@intel.com> | |
7 | */ | |
8 | ||
9 | #include <linux/linkage.h> | |
10 | ||
11 | #define SAVE_XMM \ | |
12 | mov %rsp, %rax; \ | |
13 | subq $0x70, %rsp; \ | |
14 | and $~0xf, %rsp; \ | |
15 | mov %rax, (%rsp); \ | |
16 | mov %cr0, %rax; \ | |
17 | clts; \ | |
18 | mov %rax, 0x8(%rsp); \ | |
19 | movaps %xmm0, 0x60(%rsp); \ | |
20 | movaps %xmm1, 0x50(%rsp); \ | |
21 | movaps %xmm2, 0x40(%rsp); \ | |
22 | movaps %xmm3, 0x30(%rsp); \ | |
23 | movaps %xmm4, 0x20(%rsp); \ | |
24 | movaps %xmm5, 0x10(%rsp) | |
25 | ||
26 | #define RESTORE_XMM \ | |
27 | movaps 0x60(%rsp), %xmm0; \ | |
28 | movaps 0x50(%rsp), %xmm1; \ | |
29 | movaps 0x40(%rsp), %xmm2; \ | |
30 | movaps 0x30(%rsp), %xmm3; \ | |
31 | movaps 0x20(%rsp), %xmm4; \ | |
32 | movaps 0x10(%rsp), %xmm5; \ | |
33 | mov 0x8(%rsp), %rsi; \ | |
34 | mov %rsi, %cr0; \ | |
35 | mov (%rsp), %rsp | |
36 | ||
37 | ENTRY(efi_call0) | |
38 | SAVE_XMM | |
39 | subq $32, %rsp | |
40 | call *%rdi | |
41 | addq $32, %rsp | |
42 | RESTORE_XMM | |
43 | ret | |
44 | ||
45 | ENTRY(efi_call1) | |
46 | SAVE_XMM | |
47 | subq $32, %rsp | |
48 | mov %rsi, %rcx | |
49 | call *%rdi | |
50 | addq $32, %rsp | |
51 | RESTORE_XMM | |
52 | ret | |
53 | ||
54 | ENTRY(efi_call2) | |
55 | SAVE_XMM | |
56 | subq $32, %rsp | |
57 | mov %rsi, %rcx | |
58 | call *%rdi | |
59 | addq $32, %rsp | |
60 | RESTORE_XMM | |
61 | ret | |
62 | ||
63 | ENTRY(efi_call3) | |
64 | SAVE_XMM | |
65 | subq $32, %rsp | |
66 | mov %rcx, %r8 | |
67 | mov %rsi, %rcx | |
68 | call *%rdi | |
69 | addq $32, %rsp | |
70 | RESTORE_XMM | |
71 | ret | |
72 | ||
73 | ENTRY(efi_call4) | |
74 | SAVE_XMM | |
75 | subq $32, %rsp | |
76 | mov %r8, %r9 | |
77 | mov %rcx, %r8 | |
78 | mov %rsi, %rcx | |
79 | call *%rdi | |
80 | addq $32, %rsp | |
81 | RESTORE_XMM | |
82 | ret | |
83 | ||
84 | ENTRY(efi_call5) | |
85 | SAVE_XMM | |
86 | subq $48, %rsp | |
87 | mov %r9, 32(%rsp) | |
88 | mov %r8, %r9 | |
89 | mov %rcx, %r8 | |
90 | mov %rsi, %rcx | |
91 | call *%rdi | |
92 | addq $48, %rsp | |
93 | RESTORE_XMM | |
94 | ret | |
95 | ||
96 | ENTRY(efi_call6) | |
97 | SAVE_XMM | |
98 | mov (%rsp), %rax | |
99 | mov 8(%rax), %rax | |
100 | subq $48, %rsp | |
101 | mov %r9, 32(%rsp) | |
102 | mov %rax, 40(%rsp) | |
103 | mov %r8, %r9 | |
104 | mov %rcx, %r8 | |
105 | mov %rsi, %rcx | |
106 | call *%rdi | |
107 | addq $48, %rsp | |
108 | RESTORE_XMM | |
109 | ret |