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/* 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>
#include <asm/pgalloc.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, bool);
#define ARCH_EFI_IRQ_FLAGS_MASK (SR_IE | SR_SPIE)
/* Load initrd anywhere in system RAM */
static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr)
{
return ULONG_MAX;
}
static inline unsigned long efi_get_kimg_min_align(void)
{
/*
* RISC-V requires the kernel image to placed 2 MB aligned base for 64
* bit and 4MB for 32 bit.
*/
return IS_ENABLED(CONFIG_64BIT) ? SZ_2M : SZ_4M;
}
#define EFI_KIMG_PREFERRED_ADDRESS efi_get_kimg_min_align()
void arch_efi_call_virt_setup(void);
void arch_efi_call_virt_teardown(void);
unsigned long stext_offset(void);
void efi_icache_sync(unsigned long start, unsigned long end);
#endif /* _ASM_EFI_H */