diff options
| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2012-12-04 15:12:04 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-12-06 13:14:34 +0100 |
| commit | 498d2ac15ce0fc08edb005a7faf9ed6b5aa028d8 (patch) | |
| tree | 64128e5fd2809354ab5ca8bfb8080f0d63f4095f /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | cbcc80dff3896015385c67d6be0beb3399999e5c (diff) | |
drm/i915: Add intel_ring_handle_seqno wrap
If there are pre-wrap values in semaphore-mbox registers after wrap,
syncing against some after-wrap request will complete immediately.
Fix this by emitting ring commands to set mbox registers to zero
when the wrap happens.
v2: Use __intel_ring_begin to emit ring commands, from
Chris Wilson.
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add a small comment to handle_seqno_wrap.]
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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index d4b7416fa1b..b4a533e53fd 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -196,7 +196,7 @@ static inline void intel_ring_emit(struct intel_ring_buffer *ring, } void intel_ring_advance(struct intel_ring_buffer *ring); int __must_check intel_ring_idle(struct intel_ring_buffer *ring); - +int __must_check intel_ring_handle_seqno_wrap(struct intel_ring_buffer *ring); int intel_ring_flush_all_caches(struct intel_ring_buffer *ring); int intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring); |