[PATCH 1/5] efi: add macro for EFI_MEMORY_UCE memory attribute

Laszlo Ersek
2014-09-01T00:54:19Z

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@redhat.com>
---
include/linux/efi.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 45cb4ff..b4b1d8d 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 */
--
1.8.3.1