From: John.C.Harrison@Intel.com To: Intel-GFX@Lists.FreeDesktop.Org Cc: John Harrison <John.C.Harrison@Intel.com>, DRI-Devel@Lists.FreeDesktop.Org Subject: [PATCH v2] drm/i915/guc: Check for wedged before doing stuff Date: Tue, 21 Dec 2021 13:02:12 -0800 [thread overview] Message-ID: <20211221210212.1438670-1-John.C.Harrison@Intel.com> (raw) From: John Harrison <John.C.Harrison@Intel.com> A fault injection probe test hit a BUG_ON in a GuC error path. It showed that the GuC code could potentially attempt to do many things when the device is actually wedged. So, add a check in to prevent that. v2: Use intel_gt_is_wedged instead of testing bits directly in the GuC submission code (review feedback from Tvrtko). Signed-off-by: John Harrison <John.C.Harrison@Intel.com> --- drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index e7517206af82..756b29d8326b 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -1349,7 +1349,8 @@ submission_disabled(struct intel_guc *guc) struct i915_sched_engine * const sched_engine = guc->sched_engine; return unlikely(!sched_engine || - !__tasklet_is_enabled(&sched_engine->tasklet)); + !__tasklet_is_enabled(&sched_engine->tasklet) || + intel_gt_is_wedged(guc_to_gt(guc))); } static void disable_submission(struct intel_guc *guc) @@ -1725,7 +1726,7 @@ void intel_guc_submission_reset_finish(struct intel_guc *guc) { /* Reset called during driver load or during wedge? */ if (unlikely(!guc_submission_initialized(guc) || - test_bit(I915_WEDGED, &guc_to_gt(guc)->reset.flags))) { + intel_gt_is_wedged(guc_to_gt(guc)))) { return; } -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: John.C.Harrison@Intel.com To: Intel-GFX@Lists.FreeDesktop.Org Cc: DRI-Devel@Lists.FreeDesktop.Org Subject: [Intel-gfx] [PATCH v2] drm/i915/guc: Check for wedged before doing stuff Date: Tue, 21 Dec 2021 13:02:12 -0800 [thread overview] Message-ID: <20211221210212.1438670-1-John.C.Harrison@Intel.com> (raw) From: John Harrison <John.C.Harrison@Intel.com> A fault injection probe test hit a BUG_ON in a GuC error path. It showed that the GuC code could potentially attempt to do many things when the device is actually wedged. So, add a check in to prevent that. v2: Use intel_gt_is_wedged instead of testing bits directly in the GuC submission code (review feedback from Tvrtko). Signed-off-by: John Harrison <John.C.Harrison@Intel.com> --- drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index e7517206af82..756b29d8326b 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -1349,7 +1349,8 @@ submission_disabled(struct intel_guc *guc) struct i915_sched_engine * const sched_engine = guc->sched_engine; return unlikely(!sched_engine || - !__tasklet_is_enabled(&sched_engine->tasklet)); + !__tasklet_is_enabled(&sched_engine->tasklet) || + intel_gt_is_wedged(guc_to_gt(guc))); } static void disable_submission(struct intel_guc *guc) @@ -1725,7 +1726,7 @@ void intel_guc_submission_reset_finish(struct intel_guc *guc) { /* Reset called during driver load or during wedge? */ if (unlikely(!guc_submission_initialized(guc) || - test_bit(I915_WEDGED, &guc_to_gt(guc)->reset.flags))) { + intel_gt_is_wedged(guc_to_gt(guc)))) { return; } -- 2.25.1
next reply other threads:[~2021-12-21 21:02 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-12-21 21:02 John.C.Harrison [this message] 2021-12-21 21:02 ` [Intel-gfx] [PATCH v2] drm/i915/guc: Check for wedged before doing stuff John.C.Harrison 2021-12-22 0:23 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/guc: Check for wedged before doing stuff (rev2) Patchwork 2021-12-22 5:29 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork 2021-12-23 18:00 ` [Intel-gfx] [PATCH v2] drm/i915/guc: Check for wedged before doing stuff Matthew Brost
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