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drm/i915/selftests: Pretty print engine state when requests fail to start

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During hangcheck testing, we try to execute requests following the GPU
reset, and in particular want to try and debug when those fail.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171009110301.21705-2-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
This commit is contained in:
Chris Wilson 2017-10-09 12:02:58 +01:00
parent f636edb214
commit 95a19ab4d7
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/i915/selftests/intel_hangcheck.c
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@ -624,8 +624,11 @@ static int igt_wait_reset(void *arg)
__i915_add_request(rq, true);
if (!wait_for_hang(&h, rq)) {
struct drm_printer p = drm_info_printer(i915->drm.dev);
pr_err("Failed to start request %x, at %x\n",
rq->fence.seqno, hws_seqno(&h, rq));
intel_engine_dump(rq->engine, &p);
i915_reset(i915, 0);
i915_gem_set_wedged(i915);
@ -716,8 +719,12 @@ static int igt_reset_queue(void *arg)
__i915_add_request(rq, true);
if (!wait_for_hang(&h, prev)) {
struct drm_printer p = drm_info_printer(i915->drm.dev);
pr_err("Failed to start request %x, at %x\n",
prev->fence.seqno, hws_seqno(&h, prev));
intel_engine_dump(rq->engine, &p);
i915_gem_request_put(rq);
i915_gem_request_put(prev);
@ -818,8 +825,11 @@ static int igt_handle_error(void *arg)
__i915_add_request(rq, true);
if (!wait_for_hang(&h, rq)) {
struct drm_printer p = drm_info_printer(i915->drm.dev);
pr_err("Failed to start request %x, at %x\n",
rq->fence.seqno, hws_seqno(&h, rq));
intel_engine_dump(rq->engine, &p);
i915_reset(i915, 0);
i915_gem_set_wedged(i915);