mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-17 10:59:01 +07:00
6d0ca4a47b
efi_call_runtime() is provided for x86 to be able abstract mixed mode support. Provide this for ARM also so that common code work in mixed mode also. Suggested-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1486380166-31868-3-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/*
|
|
* 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 CONFIG_EFI
|
|
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_call_runtime(f, ...) sys_table_arg->runtime->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 */
|