/* * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __ASM_ARM_EFI_H #define __ASM_ARM_EFI_H #include <asm/cacheflush.h> #include <asm/cachetype.h> #include <asm/early_ioremap.h> #include <asm/fixmap.h> #include <asm/highmem.h> #include <asm/mach/map.h> #include <asm/mmu_context.h> #include <asm/pgtable.h> #include <asm/ptrace.h> #ifdef [31mCONFIG_EFI[0m void efi_init(void); int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md); int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md); #define arch_efi_call_virt_setup() efi_virtmap_load() #define arch_efi_call_virt_teardown() efi_virtmap_unload() #define arch_efi_call_virt(p, f, args...) \ ({ \ efi_##f##_t *__f; \ __f = p->f; \ __f(args); \ }) #define ARCH_EFI_IRQ_FLAGS_MASK \ (PSR_J_BIT | PSR_E_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT | \ PSR_T_BIT | MODE_MASK) static inline void efi_set_pgd(struct mm_struct *mm) { check_and_switch_context(mm, NULL); } void efi_virtmap_load(void); void efi_virtmap_unload(void); #else #define efi_init() #endif /* CONFIG_EFI */ /* arch specific definitions used by the stub code */ #define efi_call_early(f, ...) sys_table_arg->boottime->f(__VA_ARGS__) #define __efi_call_early(f, ...) f(__VA_ARGS__) #define efi_is_64bit() (false) #define efi_call_proto(protocol, f, instance, ...) \ ((protocol##_t *)instance)->f(instance, ##__VA_ARGS__) struct screen_info *alloc_screen_info(efi_system_table_t *sys_table_arg); void free_screen_info(efi_system_table_t *sys_table, struct screen_info *si); static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) { } /* * A reasonable upper bound for the uncompressed kernel size is 32 MBytes, * so we will reserve that amount of memory. We have no easy way to tell what * the actuall size of code + data the uncompressed kernel will use. * If this is insufficient, the decompressor will relocate itself out of the * way before performing the decompression. */ #define MAX_UNCOMP_KERNEL_SIZE SZ_32M /* * The kernel zImage should preferably be located between 32 MB and 128 MB * from the base of DRAM. The min address leaves space for a maximal size * uncompressed image, and the max address is due to how the zImage decompressor * picks a destination address. */ #define ZIMAGE_OFFSET_LIMIT SZ_128M #define MIN_ZIMAGE_OFFSET MAX_UNCOMP_KERNEL_SIZE #define MAX_FDT_OFFSET ZIMAGE_OFFSET_LIMIT #endif /* _ASM_ARM_EFI_H */ |