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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-06-25 15:48:35 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-08-08 11:01:48 +0300 |
| commit | ec7e1605d79d1d469b25e396f2056e42386f512f (patch) | |
| tree | 5f8ca9caeb7a703fa6104abcefb795014667a843 /arch/x86/platform/uv/bios_uv.c | |
| parent | e55f31a599478fb06a5a5d95e019e963322535cb (diff) | |
| download | linux-ec7e1605d79d1d469b25e396f2056e42386f512f.tar.gz linux-ec7e1605d79d1d469b25e396f2056e42386f512f.tar.bz2 linux-ec7e1605d79d1d469b25e396f2056e42386f512f.zip | |
efi/x86: move UV_SYSTAB handling into arch/x86
The SGI UV UEFI machines are tightly coupled to the x86 architecture
so there is no need to keep any awareness of its existence in the
generic EFI layer, especially since we already have the infrastructure
to handle arch-specific configuration tables, and were even already
using it to some extent.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Diffstat (limited to 'arch/x86/platform/uv/bios_uv.c')
| -rw-r--r-- | arch/x86/platform/uv/bios_uv.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c index 7c69652ffeea..c2ee31953372 100644 --- a/arch/x86/platform/uv/bios_uv.c +++ b/arch/x86/platform/uv/bios_uv.c @@ -14,6 +14,8 @@ #include <asm/uv/bios.h> #include <asm/uv/uv_hub.h> +unsigned long uv_systab_phys __ro_after_init = EFI_INVALID_TABLE_ADDR; + struct uv_systab *uv_systab; static s64 __uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, @@ -185,13 +187,13 @@ EXPORT_SYMBOL_GPL(uv_bios_set_legacy_vga_target); void uv_bios_init(void) { uv_systab = NULL; - if ((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || - !efi.uv_systab || efi_runtime_disabled()) { + if ((uv_systab_phys == EFI_INVALID_TABLE_ADDR) || + !uv_systab_phys || efi_runtime_disabled()) { pr_crit("UV: UVsystab: missing\n"); return; } - uv_systab = ioremap(efi.uv_systab, sizeof(struct uv_systab)); + uv_systab = ioremap(uv_systab_phys, sizeof(struct uv_systab)); if (!uv_systab || strncmp(uv_systab->signature, UV_SYSTAB_SIG, 4)) { pr_err("UV: UVsystab: bad signature!\n"); iounmap(uv_systab); @@ -203,7 +205,7 @@ void uv_bios_init(void) int size = uv_systab->size; iounmap(uv_systab); - uv_systab = ioremap(efi.uv_systab, size); + uv_systab = ioremap(uv_systab_phys, size); if (!uv_systab) { pr_err("UV: UVsystab: ioremap(%d) failed!\n", size); return; |