1 #ifndef _ASM_X86_EFI_H 2 #define _ASM_X86_EFI_H 3 4 #ifdef CONFIG_X86_32 5 6 #define EFI_LOADER_SIGNATURE "EL32" 7 8 extern 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...) \ 25 ((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args) 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) 37 38 #define efi_ioremap(addr, size, type) ioremap_cache(addr, size) 39 40 #else /* !CONFIG_X86_32 */ 41 42 #define EFI_LOADER_SIGNATURE "EL64" 43 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, 50 u64 arg4, u64 arg5); 51 extern 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 91 extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size, 92 u32 type); 93 94 #endif /* CONFIG_X86_32 */ 95 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); 103 104 #ifndef CONFIG_EFI 105 /* 106 * IF EFI is not configured, have the EFI calls return -ENOSYS. 107 */ 108 #define efi_call0(_f) (-ENOSYS) 109 #define efi_call1(_f, _a1) (-ENOSYS) 110 #define efi_call2(_f, _a1, _a2) (-ENOSYS) 111 #define efi_call3(_f, _a1, _a2, _a3) (-ENOSYS) 112 #define efi_call4(_f, _a1, _a2, _a3, _a4) (-ENOSYS) 113 #define efi_call5(_f, _a1, _a2, _a3, _a4, _a5) (-ENOSYS) 114 #define efi_call6(_f, _a1, _a2, _a3, _a4, _a5, _a6) (-ENOSYS) 115 #endif /* CONFIG_EFI */ 116 117 #endif /* _ASM_X86_EFI_H */ 118