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| author | Chris Wilson | 2017-12-14 13:26:13 +0100 |
|---|---|---|
| committer | Chris Wilson | 2017-12-14 15:56:53 +0100 |
| commit | 84ef3a727e32ac32380e28198c3fdc6dcf941ec6 (patch) | |
| tree | 44a4200401e2906b31b418905bb8bfd8e153c929 /drivers/gpu/drm/i915/intel_hangcheck.c | |
| parent | drm/i915: make CS frequency read support missing more obvious (diff) | |
| download | kernel-qcow2-linux-84ef3a727e32ac32380e28198c3fdc6dcf941ec6.tar.gz kernel-qcow2-linux-84ef3a727e32ac32380e28198c3fdc6dcf941ec6.tar.xz kernel-qcow2-linux-84ef3a727e32ac32380e28198c3fdc6dcf941ec6.zip | |
drm/i915: Show engine state when hangcheck detects a stall
Knowing the state of the engine when hangcheck thinks it is stalling is
useful for both debugging hangcheck itself and the potential cause of an
unwanted stall.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171214122613.26134-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_hangcheck.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_hangcheck.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c index 95bbb5a79c4f..0acd9dd3ed5c 100644 --- a/drivers/gpu/drm/i915/intel_hangcheck.c +++ b/drivers/gpu/drm/i915/intel_hangcheck.c @@ -349,13 +349,18 @@ static void hangcheck_accumulate_sample(struct intel_engine_cs *engine, case ENGINE_ACTIVE_HEAD: case ENGINE_ACTIVE_SUBUNITS: - /* Seqno stuck with still active engine gets leeway, + /* + * Seqno stuck with still active engine gets leeway, * in hopes that it is just a long shader. */ timeout = I915_SEQNO_DEAD_TIMEOUT; break; case ENGINE_DEAD: + if (drm_debug & DRM_UT_DRIVER) { + struct drm_printer p = drm_debug_printer("hangcheck"); + intel_engine_dump(engine, &p, "%s", engine->name); + } break; default: |