/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2020 Western Digital Corporation or its affiliates. */ #ifndef _ASM_EFI_H #define _ASM_EFI_H #include <asm/csr.h> #include <asm/io.h> #include <asm/mmu_context.h> #include <asm/ptrace.h> #include <asm/tlbflush.h> #ifdef CONFIG_EFI extern void efi_init(void); #else #define efi_init() #endif 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...) p->f(args) #define ARCH_EFI_IRQ_FLAGS_MASK (SR_IE | SR_SPIE) /* on RISC-V, the FDT may be located anywhere in system RAM */ static inline unsigned long efi_get_max_fdt_addr(unsigned long image_addr) { return ULONG_MAX; } /* Load initrd at enough distance from DRAM start */ static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr) { return image_addr + SZ_256M; } #define alloc_screen_info(x...) (&screen_info) static inline void free_screen_info(struct screen_info *si) { } static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) { } void efi_virtmap_load(void); void efi_virtmap_unload(void); #endif /* _ASM_EFI_H */