6 #define EFI_LOADER_SIGNATURE "EL32"
8 extern unsigned long asmlinkage efi_call_phys(void *, ...);
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)
21 * Wrap all the virtual calls in a way that forces the parameters on the stack.
24 #define efi_call_virt(f, args...) \
25 ((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args)
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)
38 #define efi_ioremap(addr, size, type, attr) ioremap_cache(addr, size)
40 #else /* !CONFIG_X86_32 */
42 #define EFI_LOADER_SIGNATURE "EL64"
44 extern u64 efi_call0(void *fp);
45 extern u64 efi_call1(void *fp, u64 arg1);
46 extern u64 efi_call2(void *fp, u64 arg1, u64 arg2);
47 extern u64 efi_call3(void *fp, u64 arg1, u64 arg2, u64 arg3);
48 extern u64 efi_call4(void *fp, u64 arg1, u64 arg2, u64 arg3, u64 arg4);
49 extern u64 efi_call5(void *fp, u64 arg1, u64 arg2, u64 arg3,
51 extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
52 u64 arg4, u64 arg5, u64 arg6);
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), \
65 #define efi_call_phys5(f, a1, a2, a3, a4, a5) \
66 efi_call5((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
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))
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), \
81 #define efi_call_virt4(f, a1, a2, a3, a4) \
82 efi_call4((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
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))
91 extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,
92 u32 type, u64 attribute);
94 #endif /* CONFIG_X86_32 */
96 extern int add_efi_memmap;
97 extern unsigned long x86_efi_facility;
98 extern void efi_set_executable(efi_memory_desc_t *md, bool executable);
99 extern int efi_memblock_x86_reserve_range(void);
100 extern void efi_call_phys_prelog(void);
101 extern void efi_call_phys_epilog(void);
102 extern void efi_unmap_memmap(void);
103 extern void efi_memory_uc(u64 addr, unsigned long size);
107 static inline bool efi_is_native(void)
109 return IS_ENABLED(CONFIG_X86_64) == efi_enabled(EFI_64BIT);
114 * IF EFI is not configured, have the EFI calls return -ENOSYS.
116 #define efi_call0(_f) (-ENOSYS)
117 #define efi_call1(_f, _a1) (-ENOSYS)
118 #define efi_call2(_f, _a1, _a2) (-ENOSYS)
119 #define efi_call3(_f, _a1, _a2, _a3) (-ENOSYS)
120 #define efi_call4(_f, _a1, _a2, _a3, _a4) (-ENOSYS)
121 #define efi_call5(_f, _a1, _a2, _a3, _a4, _a5) (-ENOSYS)
122 #define efi_call6(_f, _a1, _a2, _a3, _a4, _a5, _a6) (-ENOSYS)
123 #endif /* CONFIG_EFI */
125 #endif /* _ASM_X86_EFI_H */