diff options
Diffstat (limited to 'arch/loongarch')
| -rw-r--r-- | arch/loongarch/include/asm/efi.h | 14 | ||||
| -rw-r--r-- | arch/loongarch/kernel/efi.c | 24 | ||||
| -rw-r--r-- | arch/loongarch/kernel/head.S | 3 | ||||
| -rw-r--r-- | arch/loongarch/kernel/image-vars.h | 8 |
4 files changed, 31 insertions, 18 deletions
diff --git a/arch/loongarch/include/asm/efi.h b/arch/loongarch/include/asm/efi.h index 174567b00ddb..97f16e60c6ff 100644 --- a/arch/loongarch/include/asm/efi.h +++ b/arch/loongarch/include/asm/efi.h @@ -19,18 +19,18 @@ void efifb_setup_from_dmi(struct screen_info *si, const char *opt); #define EFI_ALLOC_ALIGN SZ_64K #define EFI_RT_VIRTUAL_OFFSET CSR_DMW0_BASE -static inline struct screen_info *alloc_screen_info(void) +static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr) { - return &screen_info; + return ULONG_MAX; } -static inline void free_screen_info(struct screen_info *si) +static inline unsigned long efi_get_kimg_min_align(void) { + return SZ_2M; } -static inline unsigned long efi_get_max_initrd_addr(unsigned long image_addr) -{ - return ULONG_MAX; -} +#define EFI_KIMG_PREFERRED_ADDRESS PHYSADDR(VMLINUX_LOAD_ADDRESS) + +unsigned long kernel_entry_address(void); #endif /* _ASM_LOONGARCH_EFI_H */ diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c index a31329971133..d75ce73e8ff8 100644 --- a/arch/loongarch/kernel/efi.c +++ b/arch/loongarch/kernel/efi.c @@ -52,6 +52,27 @@ void __init efi_runtime_init(void) set_bit(EFI_RUNTIME_SERVICES, &efi.flags); } +unsigned long __initdata screen_info_table = EFI_INVALID_TABLE_ADDR; + +static void __init init_screen_info(void) +{ + struct screen_info *si; + + if (screen_info_table == EFI_INVALID_TABLE_ADDR) + return; + + si = early_memremap(screen_info_table, sizeof(*si)); + if (!si) { + pr_err("Could not map screen_info config table\n"); + return; + } + screen_info = *si; + memset(si, 0, sizeof(*si)); + early_memunmap(si, sizeof(*si)); + + memblock_reserve(screen_info.lfb_base, screen_info.lfb_size); +} + void __init efi_init(void) { int size; @@ -80,8 +101,7 @@ void __init efi_init(void) set_bit(EFI_CONFIG_TABLES, &efi.flags); - if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI) - memblock_reserve(screen_info.lfb_base, screen_info.lfb_size); + init_screen_info(); if (boot_memmap == EFI_INVALID_TABLE_ADDR) return; diff --git a/arch/loongarch/kernel/head.S b/arch/loongarch/kernel/head.S index 84970e266658..57bada6b4e93 100644 --- a/arch/loongarch/kernel/head.S +++ b/arch/loongarch/kernel/head.S @@ -25,7 +25,8 @@ _head: .dword kernel_entry /* Kernel entry point */ .dword _end - _text /* Kernel image effective size */ .quad 0 /* Kernel image load offset from start of RAM */ - .org 0x3c /* 0x20 ~ 0x3b reserved */ + .org 0x38 /* 0x20 ~ 0x37 reserved */ + .long LINUX_PE_MAGIC .long pe_header - _head /* Offset to the PE header */ pe_header: diff --git a/arch/loongarch/kernel/image-vars.h b/arch/loongarch/kernel/image-vars.h index 88f5d81702df..e561989d02de 100644 --- a/arch/loongarch/kernel/image-vars.h +++ b/arch/loongarch/kernel/image-vars.h @@ -7,15 +7,7 @@ #ifdef CONFIG_EFI_STUB -__efistub_memcmp = memcmp; -__efistub_memchr = memchr; -__efistub_strcat = strcat; __efistub_strcmp = strcmp; -__efistub_strlen = strlen; -__efistub_strncat = strncat; -__efistub_strnstr = strnstr; -__efistub_strnlen = strnlen; -__efistub_strrchr = strrchr; __efistub_kernel_entry = kernel_entry; __efistub_kernel_asize = kernel_asize; __efistub_kernel_fsize = kernel_fsize; |