diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-02-11 19:52:05 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-02-11 23:00:19 +0100 |
| commit | 753b1ad4a281b0663329409d410243e91825c323 (patch) | |
| tree | d36cdd092349b4b27fbb77e7d09c097e9ff5bd25 /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | 1d2cb9a54abc6e1d239f28f07661366d5662a94a (diff) | |
| download | lwn-753b1ad4a281b0663329409d410243e91825c323.tar.gz lwn-753b1ad4a281b0663329409d410243e91825c323.zip | |
drm/i915: Add intel_ring_cachline_align()
intel_ring_cachline_align() emits MI_NOOPs until the ring tail is
aligned to a cacheline boundary.
Cc: Bjoern C <lkml@call-home.ch>
Cc: Alexandru DAMIAN <alexandru.damian@intel.com>
Cc: Enrico Tagliavini <enrico.tagliavini@gmail.com>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org (prereq for the next patch)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 71a73f4fe252..0b243ce33714 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -233,6 +233,7 @@ intel_write_status_page(struct intel_ring_buffer *ring, void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring); int __must_check intel_ring_begin(struct intel_ring_buffer *ring, int n); +int __must_check intel_ring_cacheline_align(struct intel_ring_buffer *ring); static inline void intel_ring_emit(struct intel_ring_buffer *ring, u32 data) { |