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