Commit-ID: 9c97e0bdd4b4ae44577a1b1ec949e782084e9a78
Gitweb: http://git.kernel.org/tip/9c97e0bdd4b4ae44577a1b1ec949e782084e9a78
Author: Laszlo Ersek <lersek@xxxxxxxxxx>
AuthorDate: Wed, 3 Sep 2014 13:32:19 +0200
Committer: Matt Fleming <matt.fleming@xxxxxxxxx>
CommitDate: Fri, 3 Oct 2014 18:40:59 +0100
efi: Add macro for EFI_MEMORY_UCE memory attribute
Add the following macro from the UEFI spec, for completeness:
EFI_MEMORY_UCE Memory cacheability attribute: The memory region
supports being configured as not cacheable, exported,
and supports the "fetch and add" semaphore mechanism.
Signed-off-by: Laszlo Ersek <lersek@xxxxxxxxxx>
Tested-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Acked-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
Signed-off-by: Matt Fleming <matt.fleming@xxxxxxxxx>
---
include/linux/efi.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 4812ed0..7464032 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -92,6 +92,7 @@ typedef struct {
#define EFI_MEMORY_WC ((u64)0x0000000000000002ULL) /* write-coalescing */
#define EFI_MEMORY_WT ((u64)0x0000000000000004ULL) /* write-through */
#define EFI_MEMORY_WB ((u64)0x0000000000000008ULL) /* write-back */
+#define EFI_MEMORY_UCE ((u64)0x0000000000000010ULL) /* uncached, exported */
#define EFI_MEMORY_WP ((u64)0x0000000000001000ULL) /* write-protect */
#define EFI_MEMORY_RP ((u64)0x0000000000002000ULL) /* read-protect */
#define EFI_MEMORY_XP ((u64)0x0000000000004000ULL) /* execute-protect */
--
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