diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2018-11-29 16:12:27 +0100 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2018-11-29 16:12:50 +0100 |
| commit | 65ffc51aba406636a901b02067287d8535c02417 (patch) | |
| tree | 206de4631c3f7d61ea552e50bde2841c558c7812 /arch/arm64/include/asm/processor.h | |
| parent | d7a86dffc280cb5a2a18975d46c7b9d89b025c7e (diff) | |
| parent | 1ec28f8b8ada4e4f77d1af006a3a474f4f83b8e3 (diff) | |
Merge remote-tracking branch 'drm/drm-next' into drm-misc-next
Requested by Boris Brezillon for some vc4 fixes that are needed for future vc4 work.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'arch/arm64/include/asm/processor.h')
| -rw-r--r-- | arch/arm64/include/asm/processor.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 3e2091708b8e..6b0d4dff5012 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -24,6 +24,14 @@ #define KERNEL_DS UL(-1) #define USER_DS (TASK_SIZE_64 - 1) +/* + * On arm64 systems, unaligned accesses by the CPU are cheap, and so there is + * no point in shifting all network buffers by 2 bytes just to make some IP + * header fields appear aligned in memory, potentially sacrificing some DMA + * performance on some platforms. + */ +#define NET_IP_ALIGN 0 + #ifndef __ASSEMBLY__ #ifdef __KERNEL__ |