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efi: Simplify arch_efi_call_virt() macro

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Currently, the arch_efi_call_virt() assumes all users of it will have
defined a type 'efi_##f##_t' to make use of it.

Simplify the arch_efi_call_virt() macro by eliminating the explicit
need for efi_##f##_t type for every user of this macro.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
[ardb: apply Sudeep's ARM fix to i686, Loongarch and RISC-V too]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Sudeep Holla 2022-06-28 15:18:21 +01:00 committed by Ard Biesheuvel
parent 1df4d1724b
commit 8add9a3a22
6 changed files with 7 additions and 30 deletions
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7
arch/arm/include/asm/efi.h
View file

@ -24,13 +24,6 @@ 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)

7
arch/arm64/include/asm/efi.h
View file

@ -27,12 +27,9 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
__efi_fpsimd_begin(); \
})
#undef arch_efi_call_virt
#define arch_efi_call_virt(p, f, args...) \
({ \
efi_##f##_t *__f; \
__f = p->f; \
__efi_rt_asm_wrapper(__f, #f, args); \
})
__efi_rt_asm_wrapper((p)->f, #f, args)
#define arch_efi_call_virt_teardown() \
({ \

16
arch/loongarch/include/asm/efi.h
View file

@ -13,20 +13,8 @@ void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
#define ARCH_EFI_IRQ_FLAGS_MASK 0x00000004 /* Bit 2: CSR.CRMD.IE */
#define arch_efi_call_virt_setup() \
({ \
})
#define arch_efi_call_virt(p, f, args...) \
({ \
efi_##f##_t * __f; \
__f = p->f; \
__f(args); \
})
#define arch_efi_call_virt_teardown() \
({ \
})
#define arch_efi_call_virt_setup()
#define arch_efi_call_virt_teardown()
#define EFI_ALLOC_ALIGN SZ_64K

2
arch/riscv/include/asm/efi.h
View file

@ -23,8 +23,6 @@ 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)
/* Load initrd anywhere in system RAM */

3
arch/x86/include/asm/efi.h
View file

@ -100,8 +100,6 @@ static inline void efi_fpu_end(void)
efi_fpu_end(); \
})
#define arch_efi_call_virt(p, f, args...) p->f(args)
#else /* !CONFIG_X86_32 */
#define EFI_LOADER_SIGNATURE "EL64"
@ -121,6 +119,7 @@ extern asmlinkage u64 __efi_call(void *fp, ...);
efi_enter_mm(); \
})
#undef arch_efi_call_virt
#define arch_efi_call_virt(p, f, args...) ({ \
u64 ret, ibt = ibt_save(); \
ret = efi_call((void *)p->f, args); \

2
include/linux/efi.h
View file

@ -1200,6 +1200,8 @@ static inline void efi_check_for_embedded_firmwares(void) { }
efi_status_t efi_random_get_seed(void);
#define arch_efi_call_virt(p, f, args...) ((p)->f(args))
/*
* Arch code can implement the following three template macros, avoiding
* reptition for the void/non-void return cases of {__,}efi_call_virt():