diff options
Diffstat (limited to 'arch/loongarch/kernel/efi.c')
| -rw-r--r-- | arch/loongarch/kernel/efi.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c index a50b60c587fa..a31329971133 100644 --- a/arch/loongarch/kernel/efi.c +++ b/arch/loongarch/kernel/efi.c @@ -27,8 +27,13 @@ static unsigned long efi_nr_tables; static unsigned long efi_config_table; +static unsigned long __initdata boot_memmap = EFI_INVALID_TABLE_ADDR; + static efi_system_table_t *efi_systab; -static efi_config_table_type_t arch_tables[] __initdata = {{},}; +static efi_config_table_type_t arch_tables[] __initdata = { + {LINUX_EFI_BOOT_MEMMAP_GUID, &boot_memmap, "MEMMAP" }, + {}, +}; void __init efi_runtime_init(void) { @@ -51,6 +56,7 @@ void __init efi_init(void) { int size; void *config_tables; + struct efi_boot_memmap *tbl; if (!efi_system_table) return; @@ -61,6 +67,8 @@ void __init efi_init(void) return; } + efi_systab_report_header(&efi_systab->hdr, efi_systab->fw_vendor); + set_bit(EFI_64BIT, &efi.flags); efi_nr_tables = efi_systab->nr_tables; efi_config_table = (unsigned long)efi_systab->tables; @@ -69,4 +77,27 @@ void __init efi_init(void) config_tables = early_memremap(efi_config_table, efi_nr_tables * size); efi_config_parse_tables(config_tables, efi_systab->nr_tables, arch_tables); early_memunmap(config_tables, efi_nr_tables * size); + + 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); + + if (boot_memmap == EFI_INVALID_TABLE_ADDR) + return; + + tbl = early_memremap_ro(boot_memmap, sizeof(*tbl)); + if (tbl) { + struct efi_memory_map_data data; + + data.phys_map = boot_memmap + sizeof(*tbl); + data.size = tbl->map_size; + data.desc_size = tbl->desc_size; + data.desc_version = tbl->desc_ver; + + if (efi_memmap_init_early(&data) < 0) + panic("Unable to map EFI memory map.\n"); + + early_memunmap(tbl, sizeof(*tbl)); + } } |