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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.c | |
| parent | cdb324bde5700725f04172bbeb6ef0bbbb6886c3 (diff) | |
| download | linux-1b36595ffb350c8bec5be8894c5a43f0581864c0.tar.gz linux-1b36595ffb350c8bec5be8894c5a43f0581864c0.tar.bz2 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.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 8206e2aa03c6..35f359e38f4d 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -405,22 +405,6 @@ gen8_render_ring_flush(struct drm_i915_gem_request *req, u32 mode) return gen8_emit_pipe_control(req, flags, scratch_addr); } -u64 intel_engine_get_active_head(struct intel_engine_cs *engine) -{ - struct drm_i915_private *dev_priv = engine->i915; - u64 acthd; - - if (INTEL_GEN(dev_priv) >= 8) - acthd = I915_READ64_2x32(RING_ACTHD(engine->mmio_base), - RING_ACTHD_UDW(engine->mmio_base)); - else if (INTEL_GEN(dev_priv) >= 4) - acthd = I915_READ(RING_ACTHD(engine->mmio_base)); - else - acthd = I915_READ(ACTHD); - - return acthd; -} - static void ring_setup_phys_status_page(struct intel_engine_cs *engine) { struct drm_i915_private *dev_priv = engine->i915; |