Messages in this thread Patch in this message | | | From | Toshi Kani <> | Subject | [RFC PATCH 9/11] x86, efi: Cleanup PCD bit manipulation in EFI | Date | Tue, 15 Jul 2014 13:34:42 -0600 |
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This patch cleans up the PCD bit manipulation in EFI virtual mapping, and uses _PAGE_CACHE_<type> macros, instead. This keeps the efi code independent from the PAT slot assignment.
Signed-off-by: Toshi Kani <toshi.kani@hp.com> --- arch/x86/platform/efi/efi_64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 290d397..55c6e77 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -202,10 +202,10 @@ void efi_cleanup_page_tables(unsigned long pa_memmap, unsigned num_pages) static void __init __map_region(efi_memory_desc_t *md, u64 va) { pgd_t *pgd = (pgd_t *)__va(real_mode_header->trampoline_pgd); - unsigned long pf = 0; + unsigned long pf = _PAGE_CACHE_WB; if (!(md->attribute & EFI_MEMORY_WB)) - pf |= _PAGE_PCD; + pf = _PAGE_CACHE_UC_MINUS; if (kernel_map_pages_in_pgd(pgd, md->phys_addr, va, md->num_pages, pf)) pr_warn("Error mapping PA 0x%llx -> VA 0x%llx!\n",
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