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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-04-10 12:16:34 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2013-04-10 13:46:45 +0100 |
| commit | caf3118f90bad7f88f5f08e49177a1696bf97ccb (patch) | |
| tree | ace6e0afbd74dcaa158718a27051abd79c2da17d /src/sna/compiler.h | |
| parent | 092e30de8a3476ab99446264edaf9b250a41736b (diff) | |
sna: Align uploads to start on page boundaries
This reduces the number of loops and restarts required in the kernel.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/sna/compiler.h')
| -rw-r--r-- | src/sna/compiler.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/sna/compiler.h b/src/sna/compiler.h index 62f51f0e..75e691ad 100644 --- a/src/sna/compiler.h +++ b/src/sna/compiler.h @@ -39,6 +39,7 @@ #define pure __attribute__((pure)) #define __packed__ __attribute__((__packed__)) #define flatten __attribute__((flatten)) +#define page_aligned __attribute__((aligned(4096))) #else #define likely(expr) (expr) #define unlikely(expr) (expr) @@ -50,6 +51,7 @@ #define pure #define __packed__ #define flatten +#define page_aligned #endif #define HAS_GCC(major, minor) defined(__GNUC__) && (__GNUC__ > (major) || __GNUC__ == (major) && __GNUC_MINOR__ >= (minor)) |