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| author | Keith Packard <keithp@keithp.com> | 2011-12-12 04:12:42 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-12 21:25:56 +0400 |
| commit | e1ad783b12ec8b69da83479c5d21a0d8180bc519 (patch) | |
| tree | 9f514caae0da32ae9d1dbf71a2b93f5d5910c472 /arch/x86/platform/efi/efi.c | |
| parent | 6d3e32e63f1fb47b3ba104d13dfac116df7b2bbb (diff) | |
| download | linux-e1ad783b12ec8b69da83479c5d21a0d8180bc519.tar.xz | |
Revert "x86, efi: Calling __pa() with an ioremap()ed address is invalid"
This hangs my MacBook Air at boot time; I get no console
messages at all. I reverted this on top of -rc5 and my machine
boots again.
This reverts commit e8c7106280a305e1ff2a3a8a4dfce141469fb039.
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Huang Ying <huang.ying.caritas@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1321621751-3650-1-git-send-email-matt@console
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/platform/efi/efi.c')
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index c9718a16be15..37718f0f053d 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -323,13 +323,10 @@ static void __init do_add_efi_memmap(void) case EFI_UNUSABLE_MEMORY: e820_type = E820_UNUSABLE; break; - case EFI_RUNTIME_SERVICES_DATA: - e820_type = E820_RESERVED_EFI; - break; default: /* * EFI_RESERVED_TYPE EFI_RUNTIME_SERVICES_CODE - * EFI_MEMORY_MAPPED_IO + * EFI_RUNTIME_SERVICES_DATA EFI_MEMORY_MAPPED_IO * EFI_MEMORY_MAPPED_IO_PORT_SPACE EFI_PAL_CODE */ e820_type = E820_RESERVED; @@ -674,21 +671,10 @@ void __init efi_enter_virtual_mode(void) end_pfn = PFN_UP(end); if (end_pfn <= max_low_pfn_mapped || (end_pfn > (1UL << (32 - PAGE_SHIFT)) - && end_pfn <= max_pfn_mapped)) { + && end_pfn <= max_pfn_mapped)) va = __va(md->phys_addr); - - if (!(md->attribute & EFI_MEMORY_WB)) { - addr = (u64) (unsigned long)va; - npages = md->num_pages; - memrange_efi_to_native(&addr, &npages); - set_memory_uc(addr, npages); - } - } else { - if (!(md->attribute & EFI_MEMORY_WB)) - va = ioremap_nocache(md->phys_addr, size); - else - va = ioremap_cache(md->phys_addr, size); - } + else + va = efi_ioremap(md->phys_addr, size, md->type); md->virt_addr = (u64) (unsigned long) va; @@ -698,6 +684,13 @@ void __init efi_enter_virtual_mode(void) continue; } + if (!(md->attribute & EFI_MEMORY_WB)) { + addr = md->virt_addr; + npages = md->num_pages; + memrange_efi_to_native(&addr, &npages); + set_memory_uc(addr, npages); + } + systab = (u64) (unsigned long) efi_phys.systab; if (md->phys_addr <= systab && systab < end) { systab += md->virt_addr - md->phys_addr; |