1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2020 Western Digital Corporation or its affiliates.
10 #include <asm/mmu_context.h>
11 #include <asm/ptrace.h>
12 #include <asm/tlbflush.h>
13 #include <asm/pgalloc.h>
16 extern void efi_init(void);
21 int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md);
22 int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md, bool);
24 #define arch_efi_call_virt_setup() ({ \
25 sync_kernel_mappings(efi_mm.pgd); \
28 #define arch_efi_call_virt_teardown() efi_virtmap_unload()
30 #define ARCH_EFI_IRQ_FLAGS_MASK (SR_IE | SR_SPIE)
32 /* Load initrd anywhere in system RAM */
33 static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr)
38 static inline unsigned long efi_get_kimg_min_align(void)
41 * RISC-V requires the kernel image to placed 2 MB aligned base for 64
42 * bit and 4MB for 32 bit.
44 return IS_ENABLED(CONFIG_64BIT) ? SZ_2M : SZ_4M;
47 #define EFI_KIMG_PREFERRED_ADDRESS efi_get_kimg_min_align()
49 void efi_virtmap_load(void);
50 void efi_virtmap_unload(void);
52 unsigned long stext_offset(void);
54 #endif /* _ASM_EFI_H */