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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-04 21:11:31 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-05 08:40:06 +0100 |
| commit | 1b36595ffb350c8bec5be8894c5a43f0581864c0 (patch) | |
| tree | 5a9198dabdae00c7be0cb4f2d5d8e88da0cf52f7 /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | cdb324bde5700725f04172bbeb6ef0bbbb6886c3 (diff) | |
| download | talos-obmc-linux-1b36595ffb350c8bec5be8894c5a43f0581864c0.tar.gz talos-obmc-linux-1b36595ffb350c8bec5be8894c5a43f0581864c0.zip | |
drm/i915: Show RING registers through debugfs
Knowing where the RINGs are pointing is extremely useful in diagnosing
if the engines are executing the ringbuffers you expect - and igt may be
suppressing the usual method of looking in the GPU error state.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161004201132.21801-7-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 66553bdb0a47..498931f0b1f1 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -541,6 +541,8 @@ int intel_init_blt_ring_buffer(struct intel_engine_cs *engine); int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine); u64 intel_engine_get_active_head(struct intel_engine_cs *engine); +u64 intel_engine_get_last_batch_head(struct intel_engine_cs *engine); + static inline u32 intel_engine_get_seqno(struct intel_engine_cs *engine) { return intel_read_status_page(engine, I915_GEM_HWS_INDEX); |
