x86-64: Fix page table accounting
[deliverable/linux.git] / arch / x86 / include / asm / efi.h
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1#ifndef _ASM_X86_EFI_H
2#define _ASM_X86_EFI_H
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3
4#ifdef CONFIG_X86_32
e429795c 5
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6#define EFI_LOADER_SIGNATURE "EL32"
7
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8extern unsigned long asmlinkage efi_call_phys(void *, ...);
9
10#define efi_call_phys0(f) efi_call_phys(f)
11#define efi_call_phys1(f, a1) efi_call_phys(f, a1)
12#define efi_call_phys2(f, a1, a2) efi_call_phys(f, a1, a2)
13#define efi_call_phys3(f, a1, a2, a3) efi_call_phys(f, a1, a2, a3)
14#define efi_call_phys4(f, a1, a2, a3, a4) \
15 efi_call_phys(f, a1, a2, a3, a4)
16#define efi_call_phys5(f, a1, a2, a3, a4, a5) \
17 efi_call_phys(f, a1, a2, a3, a4, a5)
18#define efi_call_phys6(f, a1, a2, a3, a4, a5, a6) \
19 efi_call_phys(f, a1, a2, a3, a4, a5, a6)
20/*
21 * Wrap all the virtual calls in a way that forces the parameters on the stack.
22 */
23
24#define efi_call_virt(f, args...) \
0c6f6abf 25 ((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args)
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26
27#define efi_call_virt0(f) efi_call_virt(f)
28#define efi_call_virt1(f, a1) efi_call_virt(f, a1)
29#define efi_call_virt2(f, a1, a2) efi_call_virt(f, a1, a2)
30#define efi_call_virt3(f, a1, a2, a3) efi_call_virt(f, a1, a2, a3)
31#define efi_call_virt4(f, a1, a2, a3, a4) \
32 efi_call_virt(f, a1, a2, a3, a4)
33#define efi_call_virt5(f, a1, a2, a3, a4, a5) \
34 efi_call_virt(f, a1, a2, a3, a4, a5)
35#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
36 efi_call_virt(f, a1, a2, a3, a4, a5, a6)
e429795c 37
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38#define efi_ioremap(addr, size, type) ioremap_cache(addr, size)
39
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40#else /* !CONFIG_X86_32 */
41
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42#define EFI_LOADER_SIGNATURE "EL64"
43
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44extern u64 efi_call0(void *fp);
45extern u64 efi_call1(void *fp, u64 arg1);
46extern u64 efi_call2(void *fp, u64 arg1, u64 arg2);
47extern u64 efi_call3(void *fp, u64 arg1, u64 arg2, u64 arg3);
48extern u64 efi_call4(void *fp, u64 arg1, u64 arg2, u64 arg3, u64 arg4);
49extern u64 efi_call5(void *fp, u64 arg1, u64 arg2, u64 arg3,
50 u64 arg4, u64 arg5);
51extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
52 u64 arg4, u64 arg5, u64 arg6);
53
54#define efi_call_phys0(f) \
55 efi_call0((void *)(f))
56#define efi_call_phys1(f, a1) \
57 efi_call1((void *)(f), (u64)(a1))
58#define efi_call_phys2(f, a1, a2) \
59 efi_call2((void *)(f), (u64)(a1), (u64)(a2))
60#define efi_call_phys3(f, a1, a2, a3) \
61 efi_call3((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3))
62#define efi_call_phys4(f, a1, a2, a3, a4) \
63 efi_call4((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
64 (u64)(a4))
65#define efi_call_phys5(f, a1, a2, a3, a4, a5) \
66 efi_call5((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
67 (u64)(a4), (u64)(a5))
68#define efi_call_phys6(f, a1, a2, a3, a4, a5, a6) \
69 efi_call6((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
70 (u64)(a4), (u64)(a5), (u64)(a6))
71
72#define efi_call_virt0(f) \
73 efi_call0((void *)(efi.systab->runtime->f))
74#define efi_call_virt1(f, a1) \
75 efi_call1((void *)(efi.systab->runtime->f), (u64)(a1))
76#define efi_call_virt2(f, a1, a2) \
77 efi_call2((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2))
78#define efi_call_virt3(f, a1, a2, a3) \
79 efi_call3((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
80 (u64)(a3))
81#define efi_call_virt4(f, a1, a2, a3, a4) \
82 efi_call4((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
83 (u64)(a3), (u64)(a4))
84#define efi_call_virt5(f, a1, a2, a3, a4, a5) \
85 efi_call5((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
86 (u64)(a3), (u64)(a4), (u64)(a5))
87#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
88 efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
89 (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
90
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91extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,
92 u32 type);
93
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94#endif /* CONFIG_X86_32 */
95
cbafbc82 96extern int add_efi_memmap;
9cd2b07c 97extern void efi_set_executable(efi_memory_desc_t *md, bool executable);
1adbfa35 98extern int efi_memblock_x86_reserve_range(void);
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99extern void efi_call_phys_prelog(void);
100extern void efi_call_phys_epilog(void);
5b83683f 101
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102#ifndef CONFIG_EFI
103/*
104 * IF EFI is not configured, have the EFI calls return -ENOSYS.
105 */
106#define efi_call0(_f) (-ENOSYS)
107#define efi_call1(_f, _a1) (-ENOSYS)
108#define efi_call2(_f, _a1, _a2) (-ENOSYS)
109#define efi_call3(_f, _a1, _a2, _a3) (-ENOSYS)
110#define efi_call4(_f, _a1, _a2, _a3, _a4) (-ENOSYS)
111#define efi_call5(_f, _a1, _a2, _a3, _a4, _a5) (-ENOSYS)
112#define efi_call6(_f, _a1, _a2, _a3, _a4, _a5, _a6) (-ENOSYS)
113#endif /* CONFIG_EFI */
114
1965aae3 115#endif /* _ASM_X86_EFI_H */
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