blob: 99b47d48c9f4ba23c71d5e5a5acebf55b62272ee [file] [log] [blame]
Huang, Ying5b836832008-01-30 13:31:19 +01001/*
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
37ENTRY(efi_call0)
38 SAVE_XMM
39 subq $32, %rsp
40 call *%rdi
41 addq $32, %rsp
42 RESTORE_XMM
43 ret
44
45ENTRY(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
54ENTRY(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
63ENTRY(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
73ENTRY(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
84ENTRY(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
96ENTRY(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