From: Matthew Brost <matthew.brost@intel.com> To: <intel-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org> Cc: daniel.vetter@intel.com Subject: [PATCH 06/20] drm/i915/guc: Drop guc->interrupts.enabled Date: Wed, 2 Jun 2021 22:16:16 -0700 [thread overview] Message-ID: <20210603051630.2635-7-matthew.brost@intel.com> (raw) In-Reply-To: <20210603051630.2635-1-matthew.brost@intel.com> Drop the variable guc->interrupts.enabled as this variable is just leading to bugs creeping into the code. e.g. A full GPU reset disables the GuC interrupts but forgot to clear guc->interrupts.enabled, guc->interrupts.enabled being true suppresses interrupts from getting re-enabled and now we are broken. It is harmless to enable interrupt while already enabled so let's just delete this variable to avoid bugs like this going forward. Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: John Harrison <John.C.Harrison@Intel.com> --- drivers/gpu/drm/i915/gt/uc/intel_guc.c | 27 +++++++++----------------- drivers/gpu/drm/i915/gt/uc/intel_guc.h | 1 - 2 files changed, 9 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index ab2c8fe8cdfa..18da9ed15728 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -96,12 +96,9 @@ static void gen9_enable_guc_interrupts(struct intel_guc *guc) assert_rpm_wakelock_held(>->i915->runtime_pm); spin_lock_irq(>->irq_lock); - if (!guc->interrupts.enabled) { - WARN_ON_ONCE(intel_uncore_read(gt->uncore, GEN8_GT_IIR(2)) & - gt->pm_guc_events); - guc->interrupts.enabled = true; - gen6_gt_pm_enable_irq(gt, gt->pm_guc_events); - } + WARN_ON_ONCE(intel_uncore_read(gt->uncore, GEN8_GT_IIR(2)) & + gt->pm_guc_events); + gen6_gt_pm_enable_irq(gt, gt->pm_guc_events); spin_unlock_irq(>->irq_lock); } @@ -112,7 +109,6 @@ static void gen9_disable_guc_interrupts(struct intel_guc *guc) assert_rpm_wakelock_held(>->i915->runtime_pm); spin_lock_irq(>->irq_lock); - guc->interrupts.enabled = false; gen6_gt_pm_disable_irq(gt, gt->pm_guc_events); @@ -134,18 +130,14 @@ static void gen11_reset_guc_interrupts(struct intel_guc *guc) static void gen11_enable_guc_interrupts(struct intel_guc *guc) { struct intel_gt *gt = guc_to_gt(guc); + u32 events = REG_FIELD_PREP(ENGINE1_MASK, GUC_INTR_GUC2HOST); spin_lock_irq(>->irq_lock); - if (!guc->interrupts.enabled) { - u32 events = REG_FIELD_PREP(ENGINE1_MASK, GUC_INTR_GUC2HOST); - - WARN_ON_ONCE(gen11_gt_reset_one_iir(gt, 0, GEN11_GUC)); - intel_uncore_write(gt->uncore, - GEN11_GUC_SG_INTR_ENABLE, events); - intel_uncore_write(gt->uncore, - GEN11_GUC_SG_INTR_MASK, ~events); - guc->interrupts.enabled = true; - } + WARN_ON_ONCE(gen11_gt_reset_one_iir(gt, 0, GEN11_GUC)); + intel_uncore_write(gt->uncore, + GEN11_GUC_SG_INTR_ENABLE, events); + intel_uncore_write(gt->uncore, + GEN11_GUC_SG_INTR_MASK, ~events); spin_unlock_irq(>->irq_lock); } @@ -154,7 +146,6 @@ static void gen11_disable_guc_interrupts(struct intel_guc *guc) struct intel_gt *gt = guc_to_gt(guc); spin_lock_irq(>->irq_lock); - guc->interrupts.enabled = false; intel_uncore_write(gt->uncore, GEN11_GUC_SG_INTR_MASK, ~0); intel_uncore_write(gt->uncore, GEN11_GUC_SG_INTR_ENABLE, 0); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index c20f3839de12..4abc59f6f3cd 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -33,7 +33,6 @@ struct intel_guc { unsigned int msg_enabled_mask; struct { - bool enabled; void (*reset)(struct intel_guc *guc); void (*enable)(struct intel_guc *guc); void (*disable)(struct intel_guc *guc); -- 2.28.0
WARNING: multiple messages have this Message-ID (diff)
From: Matthew Brost <matthew.brost@intel.com> To: <intel-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org> Cc: daniel.vetter@intel.com Subject: [Intel-gfx] [PATCH 06/20] drm/i915/guc: Drop guc->interrupts.enabled Date: Wed, 2 Jun 2021 22:16:16 -0700 [thread overview] Message-ID: <20210603051630.2635-7-matthew.brost@intel.com> (raw) In-Reply-To: <20210603051630.2635-1-matthew.brost@intel.com> Drop the variable guc->interrupts.enabled as this variable is just leading to bugs creeping into the code. e.g. A full GPU reset disables the GuC interrupts but forgot to clear guc->interrupts.enabled, guc->interrupts.enabled being true suppresses interrupts from getting re-enabled and now we are broken. It is harmless to enable interrupt while already enabled so let's just delete this variable to avoid bugs like this going forward. Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: John Harrison <John.C.Harrison@Intel.com> --- drivers/gpu/drm/i915/gt/uc/intel_guc.c | 27 +++++++++----------------- drivers/gpu/drm/i915/gt/uc/intel_guc.h | 1 - 2 files changed, 9 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index ab2c8fe8cdfa..18da9ed15728 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -96,12 +96,9 @@ static void gen9_enable_guc_interrupts(struct intel_guc *guc) assert_rpm_wakelock_held(>->i915->runtime_pm); spin_lock_irq(>->irq_lock); - if (!guc->interrupts.enabled) { - WARN_ON_ONCE(intel_uncore_read(gt->uncore, GEN8_GT_IIR(2)) & - gt->pm_guc_events); - guc->interrupts.enabled = true; - gen6_gt_pm_enable_irq(gt, gt->pm_guc_events); - } + WARN_ON_ONCE(intel_uncore_read(gt->uncore, GEN8_GT_IIR(2)) & + gt->pm_guc_events); + gen6_gt_pm_enable_irq(gt, gt->pm_guc_events); spin_unlock_irq(>->irq_lock); } @@ -112,7 +109,6 @@ static void gen9_disable_guc_interrupts(struct intel_guc *guc) assert_rpm_wakelock_held(>->i915->runtime_pm); spin_lock_irq(>->irq_lock); - guc->interrupts.enabled = false; gen6_gt_pm_disable_irq(gt, gt->pm_guc_events); @@ -134,18 +130,14 @@ static void gen11_reset_guc_interrupts(struct intel_guc *guc) static void gen11_enable_guc_interrupts(struct intel_guc *guc) { struct intel_gt *gt = guc_to_gt(guc); + u32 events = REG_FIELD_PREP(ENGINE1_MASK, GUC_INTR_GUC2HOST); spin_lock_irq(>->irq_lock); - if (!guc->interrupts.enabled) { - u32 events = REG_FIELD_PREP(ENGINE1_MASK, GUC_INTR_GUC2HOST); - - WARN_ON_ONCE(gen11_gt_reset_one_iir(gt, 0, GEN11_GUC)); - intel_uncore_write(gt->uncore, - GEN11_GUC_SG_INTR_ENABLE, events); - intel_uncore_write(gt->uncore, - GEN11_GUC_SG_INTR_MASK, ~events); - guc->interrupts.enabled = true; - } + WARN_ON_ONCE(gen11_gt_reset_one_iir(gt, 0, GEN11_GUC)); + intel_uncore_write(gt->uncore, + GEN11_GUC_SG_INTR_ENABLE, events); + intel_uncore_write(gt->uncore, + GEN11_GUC_SG_INTR_MASK, ~events); spin_unlock_irq(>->irq_lock); } @@ -154,7 +146,6 @@ static void gen11_disable_guc_interrupts(struct intel_guc *guc) struct intel_gt *gt = guc_to_gt(guc); spin_lock_irq(>->irq_lock); - guc->interrupts.enabled = false; intel_uncore_write(gt->uncore, GEN11_GUC_SG_INTR_MASK, ~0); intel_uncore_write(gt->uncore, GEN11_GUC_SG_INTR_ENABLE, 0); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index c20f3839de12..4abc59f6f3cd 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -33,7 +33,6 @@ struct intel_guc { unsigned int msg_enabled_mask; struct { - bool enabled; void (*reset)(struct intel_guc *guc); void (*enable)(struct intel_guc *guc); void (*disable)(struct intel_guc *guc); -- 2.28.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2021-06-03 4:58 UTC|newest] Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-03 5:16 [PATCH 00/20] GuC CTBs changes + a few misc patches Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:10 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for " Patchwork 2021-06-03 5:11 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork 2021-06-03 5:16 ` [PATCH 01/20] drm/i915/guc: skip disabling CTBs before sanitizing the GuC Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 02/20] drm/i915/guc: use probe_error log for CT enablement failure Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 03/20] drm/i915/guc: enable only the user interrupt when using GuC submission Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 04/20] drm/i915/guc: Remove sample_forcewake h2g action Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 05/20] drm/i915/guc: Keep strict GuC ABI definitions Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` Matthew Brost [this message] 2021-06-03 5:16 ` [Intel-gfx] [PATCH 06/20] drm/i915/guc: Drop guc->interrupts.enabled Matthew Brost 2021-06-03 5:16 ` [PATCH 07/20] drm/i915/guc: Stop using fence/status from CTB descriptor Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 08/20] drm/i915: Promote ptrdiff() to i915_utils.h Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 21:35 ` Daniel Vetter 2021-06-03 21:35 ` [Intel-gfx] " Daniel Vetter 2021-06-04 2:02 ` Matthew Brost 2021-06-04 2:02 ` [Intel-gfx] " Matthew Brost 2021-06-04 8:11 ` Daniel Vetter 2021-06-04 8:11 ` [Intel-gfx] " Daniel Vetter 2021-06-03 5:16 ` [PATCH 09/20] drm/i915/guc: Only rely on own CTB size Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 10/20] drm/i915/guc: Don't repeat CTB layout calculations Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 11/20] drm/i915/guc: Replace CTB array with explicit members Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 7:25 ` kernel test robot 2021-06-03 7:25 ` kernel test robot 2021-06-03 7:25 ` [Intel-gfx] " kernel test robot 2021-06-03 21:37 ` Daniel Vetter 2021-06-03 21:37 ` Daniel Vetter 2021-06-03 21:37 ` Daniel Vetter 2021-06-03 22:44 ` [PATCH 1/2] " Matthew Brost 2021-06-03 22:44 ` [Intel-gfx] " Matthew Brost 2021-06-03 22:44 ` [PATCH 2/2] drm/i915/guc: Update sizes of CTB buffers Matthew Brost 2021-06-03 22:44 ` [Intel-gfx] " Matthew Brost 2021-06-03 23:04 ` [v3 PATCH 1/2] drm/i915/guc: Replace CTB array with explicit members Matthew Brost 2021-06-03 23:04 ` [Intel-gfx] " Matthew Brost 2021-06-03 23:04 ` [v3 PATCH 2/2] drm/i915/guc: Update sizes of CTB buffers Matthew Brost 2021-06-03 23:04 ` [Intel-gfx] " Matthew Brost 2021-06-04 8:20 ` Daniel Vetter 2021-06-04 8:20 ` [Intel-gfx] " Daniel Vetter 2021-06-04 8:49 ` Michal Wajdeczko 2021-06-04 8:49 ` [Intel-gfx] " Michal Wajdeczko 2021-06-03 5:16 ` [PATCH 12/20] " Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 13/20] drm/i915/guc: Relax CTB response timeout Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-04 8:33 ` Daniel Vetter 2021-06-04 8:33 ` Daniel Vetter 2021-06-04 18:35 ` Matthew Brost 2021-06-04 18:35 ` Matthew Brost 2021-06-09 13:24 ` Daniel Vetter 2021-06-09 13:24 ` Daniel Vetter 2021-06-03 5:16 ` [PATCH 14/20] drm/i915/guc: Start protecting access to CTB descriptors Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-04 8:35 ` Daniel Vetter 2021-06-04 8:35 ` [Intel-gfx] " Daniel Vetter 2021-06-03 5:16 ` [PATCH 15/20] drm/i915/guc: Ensure H2G buffer updates visible before tail update Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 9:44 ` Michal Wajdeczko 2021-06-03 9:44 ` Michal Wajdeczko 2021-06-03 16:10 ` Matthew Brost 2021-06-03 16:10 ` Matthew Brost 2021-06-04 8:39 ` Daniel Vetter 2021-06-04 8:39 ` Daniel Vetter 2021-06-03 5:16 ` [PATCH 16/20] drm/i915/guc: Stop using mutex while sending CTB messages Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 17/20] drm/i915/guc: Don't receive all G2H messages in irq handler Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 18/20] drm/i915/guc: Always copy CT message to new allocation Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 19/20] drm/i915/guc: Early initialization of GuC send registers Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:16 ` [PATCH 20/20] drm/i915/guc: Use guc_class instead of engine_class in fw interface Matthew Brost 2021-06-03 5:16 ` [Intel-gfx] " Matthew Brost 2021-06-04 8:44 ` Daniel Vetter 2021-06-04 8:44 ` [Intel-gfx] " Daniel Vetter 2021-06-04 18:12 ` Matthew Brost 2021-06-04 18:12 ` [Intel-gfx] " Matthew Brost 2021-06-03 5:41 ` [Intel-gfx] ✓ Fi.CI.BAT: success for GuC CTBs changes + a few misc patches Patchwork 2021-06-03 6:50 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
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