[CI 1/4] drm/i915: Remove tasklet flush before disable

[CI 1/4] drm/i915: Remove tasklet flush before disable

[Chris Wilson]

The idea was to try and let the existing tasklet run to completion
before we began the reset, but it involves a racy check against anything
else that tries to run the tasklet. Rather than acknowledge and ignore
the race, let it be and don't try and be too clever.

The tasklet will resume execution after reset (after spinning a bit
during reset), but before we allow it to resume we will have cleared all
the pending state.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0a2070112b66..0dc369a9ec4d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3035,16 +3035,7 @@ i915_gem_reset_prepare_engine(struct intel_engine_cs *engine)
 	 * calling engine->init_hw() and also writing the ELSP.
 	 * Turning off the execlists->tasklet until the reset is over
 	 * prevents the race.
-	 *
-	 * Note that this needs to be a single atomic operation on the
-	 * tasklet (flush existing tasks, prevent new tasks) to prevent
-	 * a race between reset and set-wedged. It is not, so we do the best
-	 * we can atm and make sure we don't lock the machine up in the more
-	 * common case of recursively being called from set-wedged from inside
-	 * i915_reset.
 	 */
-	if (!atomic_read(&engine->execlists.tasklet.count))
-		tasklet_kill(&engine->execlists.tasklet);
 	tasklet_disable(&engine->execlists.tasklet);
 
 	/*
-- 
2.17.0

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[CI 2/4] drm/i915: Only sync tasklets once for recursive reset preparation

[Chris Wilson]

When setting up reset, we may need to recursively prepare an engine. In
which case we should only synchronously flush the tasklets on the outer
most call, the inner calls will then be inside an atomic section where
the tasklet will never be run (and so the sync will never complete).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 2 +-
 drivers/gpu/drm/i915/i915_gem.h | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0dc369a9ec4d..982393907b80 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3036,7 +3036,7 @@ i915_gem_reset_prepare_engine(struct intel_engine_cs *engine)
 	 * Turning off the execlists->tasklet until the reset is over
 	 * prevents the race.
 	 */
-	tasklet_disable(&engine->execlists.tasklet);
+	__tasklet_disable_sync_once(&engine->execlists.tasklet);
 
 	/*
 	 * We're using worker to queue preemption requests from the tasklet in
diff --git a/drivers/gpu/drm/i915/i915_gem.h b/drivers/gpu/drm/i915/i915_gem.h
index 525920404ede..5bf24cfc218c 100644
--- a/drivers/gpu/drm/i915/i915_gem.h
+++ b/drivers/gpu/drm/i915/i915_gem.h
@@ -26,6 +26,7 @@
 #define __I915_GEM_H__
 
 #include <linux/bug.h>
+#include <linux/interrupt.h>
 
 struct drm_i915_private;
 
@@ -72,4 +73,10 @@ struct drm_i915_private;
 void i915_gem_park(struct drm_i915_private *i915);
 void i915_gem_unpark(struct drm_i915_private *i915);
 
+static inline void __tasklet_disable_sync_once(struct tasklet_struct *t)
+{
+	if (atomic_inc_return(&t->count) == 1)
+		tasklet_unlock_wait(t);
+}
+
 #endif /* __I915_GEM_H__ */
-- 
2.17.0

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[CI 3/4] drm/i915/execlists: Refactor out complete_preempt_context()

[Chris Wilson]

As a complement to inject_preempt_context(), follow up with the function
to handle its completion. This will be useful should we wish to extend
the duties of the preempt-context for execlists.

v2: And do the same for the guc.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jeff McGee <jeff.mcgee@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Jeff McGee <jeff.mcgee@intel.com> #v1
---
 drivers/gpu/drm/i915/i915_gem.c             | 38 ++---------
 drivers/gpu/drm/i915/intel_guc_submission.c | 26 +++++---
 drivers/gpu/drm/i915/intel_lrc.c            | 70 +++++++++++++++++----
 drivers/gpu/drm/i915/intel_ringbuffer.c     | 23 ++++++-
 drivers/gpu/drm/i915/intel_ringbuffer.h     |  9 ++-
 5 files changed, 106 insertions(+), 60 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 982393907b80..abf661d40641 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3004,7 +3004,7 @@ i915_gem_find_active_request(struct intel_engine_cs *engine)
 struct i915_request *
 i915_gem_reset_prepare_engine(struct intel_engine_cs *engine)
 {
-	struct i915_request *request = NULL;
+	struct i915_request *request;
 
 	/*
 	 * During the reset sequence, we must prevent the engine from
@@ -3027,31 +3027,7 @@ i915_gem_reset_prepare_engine(struct intel_engine_cs *engine)
 	 */
 	kthread_park(engine->breadcrumbs.signaler);
 
-	/*
-	 * Prevent request submission to the hardware until we have
-	 * completed the reset in i915_gem_reset_finish(). If a request
-	 * is completed by one engine, it may then queue a request
-	 * to a second via its execlists->tasklet *just* as we are
-	 * calling engine->init_hw() and also writing the ELSP.
-	 * Turning off the execlists->tasklet until the reset is over
-	 * prevents the race.
-	 */
-	__tasklet_disable_sync_once(&engine->execlists.tasklet);
-
-	/*
-	 * We're using worker to queue preemption requests from the tasklet in
-	 * GuC submission mode.
-	 * Even though tasklet was disabled, we may still have a worker queued.
-	 * Let's make sure that all workers scheduled before disabling the
-	 * tasklet are completed before continuing with the reset.
-	 */
-	if (engine->i915->guc.preempt_wq)
-		flush_workqueue(engine->i915->guc.preempt_wq);
-
-	if (engine->irq_seqno_barrier)
-		engine->irq_seqno_barrier(engine);
-
-	request = i915_gem_find_active_request(engine);
+	request = engine->reset.prepare(engine);
 	if (request && request->fence.error == -EIO)
 		request = ERR_PTR(-EIO); /* Previous reset failed! */
 
@@ -3202,13 +3178,8 @@ void i915_gem_reset_engine(struct intel_engine_cs *engine,
 	if (request)
 		request = i915_gem_reset_request(engine, request, stalled);
 
-	if (request) {
-		DRM_DEBUG_DRIVER("resetting %s to restart from tail of request 0x%x\n",
-				 engine->name, request->global_seqno);
-	}
-
 	/* Setup the CS to resume from the breadcrumb of the hung request */
-	engine->reset_hw(engine, request);
+	engine->reset.reset(engine, request);
 }
 
 void i915_gem_reset(struct drm_i915_private *dev_priv,
@@ -3256,7 +3227,8 @@ void i915_gem_reset(struct drm_i915_private *dev_priv,
 
 void i915_gem_reset_finish_engine(struct intel_engine_cs *engine)
 {
-	tasklet_enable(&engine->execlists.tasklet);
+	engine->reset.finish(engine);
+
 	kthread_unpark(engine->breadcrumbs.signaler);
 
 	intel_uncore_forcewake_put(engine->i915, FORCEWAKE_ALL);
diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index 2feb65096966..ca38ac9ff4fa 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -623,6 +623,21 @@ static void wait_for_guc_preempt_report(struct intel_engine_cs *engine)
 	report->report_return_status = INTEL_GUC_REPORT_STATUS_UNKNOWN;
 }
 
+static void complete_preempt_context(struct intel_engine_cs *engine)
+{
+	struct intel_engine_execlists *execlists = &engine->execlists;
+
+	GEM_BUG_ON(!execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT));
+
+	execlists_cancel_port_requests(execlists);
+	execlists_unwind_incomplete_requests(execlists);
+
+	wait_for_guc_preempt_report(engine);
+	intel_write_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX, 0);
+
+	execlists_clear_active(execlists, EXECLISTS_ACTIVE_PREEMPT);
+}
+
 /**
  * guc_submit() - Submit commands through GuC
  * @engine: engine associated with the commands
@@ -793,15 +808,8 @@ static void guc_submission_tasklet(unsigned long data)
 
 	if (execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT) &&
 	    intel_read_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX) ==
-	    GUC_PREEMPT_FINISHED) {
-		execlists_cancel_port_requests(&engine->execlists);
-		execlists_unwind_incomplete_requests(execlists);
-
-		wait_for_guc_preempt_report(engine);
-
-		execlists_clear_active(execlists, EXECLISTS_ACTIVE_PREEMPT);
-		intel_write_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX, 0);
-	}
+	    GUC_PREEMPT_FINISHED)
+		complete_preempt_context(engine);
 
 	if (!execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT))
 		guc_dequeue(engine);
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 15434cad5430..67fed98abee7 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -552,8 +552,18 @@ static void inject_preempt_context(struct intel_engine_cs *engine)
 	if (execlists->ctrl_reg)
 		writel(EL_CTRL_LOAD, execlists->ctrl_reg);
 
-	execlists_clear_active(&engine->execlists, EXECLISTS_ACTIVE_HWACK);
-	execlists_set_active(&engine->execlists, EXECLISTS_ACTIVE_PREEMPT);
+	execlists_clear_active(execlists, EXECLISTS_ACTIVE_HWACK);
+	execlists_set_active(execlists, EXECLISTS_ACTIVE_PREEMPT);
+}
+
+static void complete_preempt_context(struct intel_engine_execlists *execlists)
+{
+	GEM_BUG_ON(!execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT));
+
+	execlists_cancel_port_requests(execlists);
+	execlists_unwind_incomplete_requests(execlists);
+
+	execlists_clear_active(execlists, EXECLISTS_ACTIVE_PREEMPT);
 }
 
 static bool __execlists_dequeue(struct intel_engine_cs *engine)
@@ -1063,14 +1073,7 @@ static void execlists_submission_tasklet(unsigned long data)
 			if (status & GEN8_CTX_STATUS_COMPLETE &&
 			    buf[2*head + 1] == execlists->preempt_complete_status) {
 				GEM_TRACE("%s preempt-idle\n", engine->name);
-
-				execlists_cancel_port_requests(execlists);
-				execlists_unwind_incomplete_requests(execlists);
-
-				GEM_BUG_ON(!execlists_is_active(execlists,
-								EXECLISTS_ACTIVE_PREEMPT));
-				execlists_clear_active(execlists,
-						       EXECLISTS_ACTIVE_PREEMPT);
+				complete_preempt_context(execlists);
 				continue;
 			}
 
@@ -1823,8 +1826,39 @@ static int gen9_init_render_ring(struct intel_engine_cs *engine)
 	return 0;
 }
 
-static void reset_common_ring(struct intel_engine_cs *engine,
-			      struct i915_request *request)
+static struct i915_request *
+execlists_reset_prepare(struct intel_engine_cs *engine)
+{
+	struct intel_engine_execlists * const execlists = &engine->execlists;
+
+	GEM_TRACE("%s\n", engine->name);
+
+	/*
+	 * Prevent request submission to the hardware until we have
+	 * completed the reset in i915_gem_reset_finish(). If a request
+	 * is completed by one engine, it may then queue a request
+	 * to a second via its execlists->tasklet *just* as we are
+	 * calling engine->init_hw() and also writing the ELSP.
+	 * Turning off the execlists->tasklet until the reset is over
+	 * prevents the race.
+	 */
+	__tasklet_disable_sync_once(&execlists->tasklet);
+
+	/*
+	 * We're using worker to queue preemption requests from the tasklet in
+	 * GuC submission mode.
+	 * Even though tasklet was disabled, we may still have a worker queued.
+	 * Let's make sure that all workers scheduled before disabling the
+	 * tasklet are completed before continuing with the reset.
+	 */
+	if (engine->i915->guc.preempt_wq)
+		flush_workqueue(engine->i915->guc.preempt_wq);
+
+	return i915_gem_find_active_request(engine);
+}
+
+static void execlists_reset(struct intel_engine_cs *engine,
+			    struct i915_request *request)
 {
 	struct intel_engine_execlists * const execlists = &engine->execlists;
 	unsigned long flags;
@@ -1904,6 +1938,13 @@ static void reset_common_ring(struct intel_engine_cs *engine,
 	unwind_wa_tail(request);
 }
 
+static void execlists_reset_finish(struct intel_engine_cs *engine)
+{
+	tasklet_enable(&engine->execlists.tasklet);
+
+	GEM_TRACE("%s\n", engine->name);
+}
+
 static int intel_logical_ring_emit_pdps(struct i915_request *rq)
 {
 	struct i915_hw_ppgtt *ppgtt = rq->ctx->ppgtt;
@@ -2233,7 +2274,10 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine)
 {
 	/* Default vfuncs which can be overriden by each engine. */
 	engine->init_hw = gen8_init_common_ring;
-	engine->reset_hw = reset_common_ring;
+
+	engine->reset.prepare = execlists_reset_prepare;
+	engine->reset.reset = execlists_reset;
+	engine->reset.finish = execlists_reset_finish;
 
 	engine->context_pin = execlists_context_pin;
 	engine->context_unpin = execlists_context_unpin;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 8f19349a6055..af5a178366ed 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -531,9 +531,20 @@ static int init_ring_common(struct intel_engine_cs *engine)
 	return ret;
 }
 
-static void reset_ring_common(struct intel_engine_cs *engine,
-			      struct i915_request *request)
+static struct i915_request *reset_prepare(struct intel_engine_cs *engine)
 {
+	if (engine->irq_seqno_barrier)
+		engine->irq_seqno_barrier(engine);
+
+	return i915_gem_find_active_request(engine);
+}
+
+static void reset_ring(struct intel_engine_cs *engine,
+		       struct i915_request *request)
+{
+	GEM_TRACE("%s seqno=%x\n",
+		  engine->name, request ? request->global_seqno : 0);
+
 	/*
 	 * RC6 must be prevented until the reset is complete and the engine
 	 * reinitialised. If it occurs in the middle of this sequence, the
@@ -597,6 +608,10 @@ static void reset_ring_common(struct intel_engine_cs *engine,
 	}
 }
 
+static void reset_finish(struct intel_engine_cs *engine)
+{
+}
+
 static int intel_rcs_ctx_init(struct i915_request *rq)
 {
 	int ret;
@@ -2006,7 +2021,9 @@ static void intel_ring_default_vfuncs(struct drm_i915_private *dev_priv,
 	intel_ring_init_semaphores(dev_priv, engine);
 
 	engine->init_hw = init_ring_common;
-	engine->reset_hw = reset_ring_common;
+	engine->reset.prepare = reset_prepare;
+	engine->reset.reset = reset_ring;
+	engine->reset.finish = reset_finish;
 
 	engine->context_pin = intel_ring_context_pin;
 	engine->context_unpin = intel_ring_context_unpin;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 010750e8ee44..1e8bacba7754 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -423,8 +423,13 @@ struct intel_engine_cs {
 	void		(*irq_disable)(struct intel_engine_cs *engine);
 
 	int		(*init_hw)(struct intel_engine_cs *engine);
-	void		(*reset_hw)(struct intel_engine_cs *engine,
-				    struct i915_request *rq);
+
+	struct {
+		struct i915_request *(*prepare)(struct intel_engine_cs *engine);
+		void (*reset)(struct intel_engine_cs *engine,
+			      struct i915_request *rq);
+		void (*finish)(struct intel_engine_cs *engine);
+	} reset;
 
 	void		(*park)(struct intel_engine_cs *engine);
 	void		(*unpark)(struct intel_engine_cs *engine);
-- 
2.17.0

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[CI 4/4] drm/i915: Split execlists/guc reset preparations

[Chris Wilson]

In the next patch, we will make the execlists reset prepare callback
take into account preemption by flushing the context-switch handler.
This is not applicable to the GuC submission backend, so split the two
into their own backend callbacks.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
CC: Michel Thierry <michel.thierry@intel.com>
Cc: Jeff McGee <jeff.mcgee@intel.com>
Reviewed-by: Jeff McGee <jeff.mcgee@intel.com>
---
 drivers/gpu/drm/i915/intel_guc_submission.c | 34 +++++++++++++++++++++
 drivers/gpu/drm/i915/intel_lrc.c            | 12 ++------
 2 files changed, 36 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c
index ca38ac9ff4fa..637e852888ec 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/intel_guc_submission.c
@@ -815,6 +815,37 @@ static void guc_submission_tasklet(unsigned long data)
 		guc_dequeue(engine);
 }
 
+static struct i915_request *
+guc_reset_prepare(struct intel_engine_cs *engine)
+{
+	struct intel_engine_execlists * const execlists = &engine->execlists;
+
+	GEM_TRACE("%s\n", engine->name);
+
+	/*
+	 * Prevent request submission to the hardware until we have
+	 * completed the reset in i915_gem_reset_finish(). If a request
+	 * is completed by one engine, it may then queue a request
+	 * to a second via its execlists->tasklet *just* as we are
+	 * calling engine->init_hw() and also writing the ELSP.
+	 * Turning off the execlists->tasklet until the reset is over
+	 * prevents the race.
+	 */
+	__tasklet_disable_sync_once(&execlists->tasklet);
+
+	/*
+	 * We're using worker to queue preemption requests from the tasklet in
+	 * GuC submission mode.
+	 * Even though tasklet was disabled, we may still have a worker queued.
+	 * Let's make sure that all workers scheduled before disabling the
+	 * tasklet are completed before continuing with the reset.
+	 */
+	if (engine->i915->guc.preempt_wq)
+		flush_workqueue(engine->i915->guc.preempt_wq);
+
+	return i915_gem_find_active_request(engine);
+}
+
 /*
  * Everything below here is concerned with setup & teardown, and is
  * therefore not part of the somewhat time-critical batch-submission
@@ -1275,6 +1306,9 @@ int intel_guc_submission_enable(struct intel_guc *guc)
 			&engine->execlists;
 
 		execlists->tasklet.func = guc_submission_tasklet;
+
+		engine->reset.prepare = guc_reset_prepare;
+
 		engine->park = guc_submission_park;
 		engine->unpark = guc_submission_unpark;
 
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 67fed98abee7..f5d74df0e0d0 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1844,16 +1844,6 @@ execlists_reset_prepare(struct intel_engine_cs *engine)
 	 */
 	__tasklet_disable_sync_once(&execlists->tasklet);
 
-	/*
-	 * We're using worker to queue preemption requests from the tasklet in
-	 * GuC submission mode.
-	 * Even though tasklet was disabled, we may still have a worker queued.
-	 * Let's make sure that all workers scheduled before disabling the
-	 * tasklet are completed before continuing with the reset.
-	 */
-	if (engine->i915->guc.preempt_wq)
-		flush_workqueue(engine->i915->guc.preempt_wq);
-
 	return i915_gem_find_active_request(engine);
 }
 
@@ -2255,6 +2245,8 @@ static void execlists_set_default_submission(struct intel_engine_cs *engine)
 	engine->schedule = execlists_schedule;
 	engine->execlists.tasklet.func = execlists_submission_tasklet;
 
+	engine->reset.prepare = execlists_reset_prepare;
+
 	engine->park = NULL;
 	engine->unpark = NULL;
 
-- 
2.17.0

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✓ Fi.CI.BAT: success for series starting with [CI,1/4] drm/i915: Remove tasklet flush before disable

[Patchwork]

== Series Details ==

Series: series starting with [CI,1/4] drm/i915: Remove tasklet flush before disable
URL   : https://patchwork.freedesktop.org/series/43265/
State : success

== Summary ==

= CI Bug Log - changes from CI_DRM_4192 -> Patchwork_9017 =

== Summary - SUCCESS ==

  No regressions found.

  External URL: https://patchwork.freedesktop.org/api/1.0/series/43265/revisions/1/mbox/

== Known issues ==

  Here are the changes found in Patchwork_9017 that come from known issues:

  === IGT changes ===

    ==== Possible fixes ====

    igt@gem_mmap_gtt@basic-small-bo-tiledx:
      fi-gdg-551:         FAIL (fdo#102575) -> PASS

    
  fdo#102575 https://bugs.freedesktop.org/show_bug.cgi?id=102575


== Participating hosts (42 -> 36) ==

  Missing    (6): fi-ilk-m540 fi-byt-squawks fi-bsw-cyan fi-snb-2520m fi-ctg-p8600 fi-skl-6700hq 


== Build changes ==

    * Linux: CI_DRM_4192 -> Patchwork_9017

  CI_DRM_4192: 302c1fbc4ca78140f408775ae39d32fc83ef0d41 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_4485: eccae1360d6d01e73c6af2bd97122cef708207ef @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_9017: 7669ce457042d7dce4273c7af7f918d950ce6943 @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4485: 62ef6b0db8967e7021fd3e0b57d03ff164b984fe @ git://anongit.freedesktop.org/piglit


== Linux commits ==

7669ce457042 drm/i915: Split execlists/guc reset preparations
f8ac5d1c59da drm/i915/execlists: Refactor out complete_preempt_context()
d34066ad981d drm/i915: Only sync tasklets once for recursive reset preparation
a922ad85546a drm/i915: Remove tasklet flush before disable

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_9017/issues.html
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✓ Fi.CI.IGT: success for series starting with [CI,1/4] drm/i915: Remove tasklet flush before disable

[Patchwork]

== Series Details ==

Series: series starting with [CI,1/4] drm/i915: Remove tasklet flush before disable
URL   : https://patchwork.freedesktop.org/series/43265/
State : success

== Summary ==

= CI Bug Log - changes from CI_DRM_4192_full -> Patchwork_9017_full =

== Summary - WARNING ==

  Minor unknown changes coming with Patchwork_9017_full need to be verified
  manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_9017_full, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://patchwork.freedesktop.org/api/1.0/series/43265/revisions/1/mbox/

== Possible new issues ==

  Here are the unknown changes that may have been introduced in Patchwork_9017_full:

  === IGT changes ===

    ==== Warnings ====

    igt@gem_exec_schedule@deep-bsd2:
      shard-kbl:          PASS -> SKIP +1

    
== Known issues ==

  Here are the changes found in Patchwork_9017_full that come from known issues:

  === IGT changes ===

    ==== Issues hit ====

    igt@drv_suspend@sysfs-reader:
      shard-kbl:          PASS -> INCOMPLETE (fdo#103665)

    igt@gem_eio@execbuf:
      shard-snb:          PASS -> DMESG-WARN (fdo#106523)

    igt@gem_eio@in-flight-1us:
      shard-hsw:          PASS -> DMESG-WARN (fdo#106523) +1

    igt@gem_eio@in-flight-contexts-immediate:
      shard-glk:          PASS -> DMESG-WARN (fdo#106523) +1

    igt@gem_eio@in-flight-suspend:
      shard-apl:          PASS -> DMESG-WARN (fdo#106523) +3

    igt@kms_atomic_transition@plane-primary-toggle-with-vblank-wait:
      shard-apl:          PASS -> DMESG-WARN (fdo#105602, fdo#103558) +18

    igt@kms_flip@2x-blocking-wf_vblank:
      shard-glk:          PASS -> FAIL (fdo#100368) +1

    igt@kms_flip@2x-dpms-vs-vblank-race:
      shard-glk:          PASS -> FAIL (fdo#103060)

    igt@kms_flip@2x-plain-flip-ts-check-interruptible:
      shard-hsw:          PASS -> FAIL (fdo#100368)

    igt@kms_flip_tiling@flip-to-y-tiled:
      shard-glk:          PASS -> FAIL (fdo#104724, fdo#103822)

    
    ==== Possible fixes ====

    igt@gem_eio@execbuf:
      shard-glk:          DMESG-WARN (fdo#106523) -> PASS +1

    igt@gem_eio@suspend:
      shard-apl:          DMESG-WARN (fdo#106523) -> PASS +2

    igt@gem_eio@wait-wedge-1us:
      shard-hsw:          DMESG-WARN (fdo#106523) -> PASS +1

    igt@kms_flip@2x-plain-flip-ts-check:
      shard-glk:          FAIL (fdo#100368) -> PASS

    igt@kms_flip@flip-vs-expired-vblank:
      shard-hsw:          FAIL (fdo#105707) -> PASS

    igt@kms_flip@modeset-vs-vblank-race-interruptible:
      shard-hsw:          FAIL (fdo#103060) -> PASS

    igt@kms_flip_tiling@flip-y-tiled:
      shard-glk:          FAIL (fdo#104724) -> PASS

    igt@kms_vblank@pipe-c-wait-busy:
      shard-kbl:          DMESG-WARN (fdo#105602, fdo#103558) -> PASS +2

    
  fdo#100368 https://bugs.freedesktop.org/show_bug.cgi?id=100368
  fdo#103060 https://bugs.freedesktop.org/show_bug.cgi?id=103060
  fdo#103558 https://bugs.freedesktop.org/show_bug.cgi?id=103558
  fdo#103665 https://bugs.freedesktop.org/show_bug.cgi?id=103665
  fdo#103822 https://bugs.freedesktop.org/show_bug.cgi?id=103822
  fdo#104724 https://bugs.freedesktop.org/show_bug.cgi?id=104724
  fdo#105602 https://bugs.freedesktop.org/show_bug.cgi?id=105602
  fdo#105707 https://bugs.freedesktop.org/show_bug.cgi?id=105707
  fdo#106523 https://bugs.freedesktop.org/show_bug.cgi?id=106523


== Participating hosts (5 -> 5) ==

  No changes in participating hosts


== Build changes ==

    * Linux: CI_DRM_4192 -> Patchwork_9017

  CI_DRM_4192: 302c1fbc4ca78140f408775ae39d32fc83ef0d41 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_4485: eccae1360d6d01e73c6af2bd97122cef708207ef @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_9017: 7669ce457042d7dce4273c7af7f918d950ce6943 @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4485: 62ef6b0db8967e7021fd3e0b57d03ff164b984fe @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_9017/shards.html
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