[PATCH 0/2] Flush G2H handler during a GT reset

[PATCH 0/2] Flush G2H handler during a GT reset

[Matthew Brost]

After a small fix to error capture code, we now can flush G2H during a
GT reset which simplifies code and seals some extreme corner case races. 

Signed-off-by: Matthew Brost <matthew.brost@intel.com>

Matthew Brost (2):
  drm/i915: Allocate intel_engine_coredump_alloc with ALLOW_FAIL
  drm/i915/guc: Flush G2H handler during a GT reset

 .../gpu/drm/i915/gt/uc/intel_guc_submission.c  | 18 +-----------------
 drivers/gpu/drm/i915/i915_gpu_error.c          |  2 +-
 2 files changed, 2 insertions(+), 18 deletions(-)

-- 
2.34.1

[Intel-gfx] [PATCH 0/2] Flush G2H handler during a GT reset

[Matthew Brost]

After a small fix to error capture code, we now can flush G2H during a
GT reset which simplifies code and seals some extreme corner case races. 

Signed-off-by: Matthew Brost <matthew.brost@intel.com>

Matthew Brost (2):
  drm/i915: Allocate intel_engine_coredump_alloc with ALLOW_FAIL
  drm/i915/guc: Flush G2H handler during a GT reset

 .../gpu/drm/i915/gt/uc/intel_guc_submission.c  | 18 +-----------------
 drivers/gpu/drm/i915/i915_gpu_error.c          |  2 +-
 2 files changed, 2 insertions(+), 18 deletions(-)

-- 
2.34.1

[PATCH 1/2] drm/i915: Allocate intel_engine_coredump_alloc with ALLOW_FAIL

[Matthew Brost]

Allocate intel_engine_coredump_alloc with ALLOW_FAIL rather than
GFP_KERNEL do fully decouple the error capture from fence signalling.

Fixes: 8b91cdd4f8649 ("drm/i915: Use __GFP_KSWAPD_RECLAIM in the capture code")

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 67f3515f07e7a..aee42eae4729f 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1516,7 +1516,7 @@ capture_engine(struct intel_engine_cs *engine,
 	struct i915_request *rq = NULL;
 	unsigned long flags;
 
-	ee = intel_engine_coredump_alloc(engine, GFP_KERNEL);
+	ee = intel_engine_coredump_alloc(engine, ALLOW_FAIL);
 	if (!ee)
 		return NULL;
 
-- 
2.34.1

[Intel-gfx] [PATCH 1/2] drm/i915: Allocate intel_engine_coredump_alloc with ALLOW_FAIL

[Matthew Brost]

Allocate intel_engine_coredump_alloc with ALLOW_FAIL rather than
GFP_KERNEL do fully decouple the error capture from fence signalling.

Fixes: 8b91cdd4f8649 ("drm/i915: Use __GFP_KSWAPD_RECLAIM in the capture code")

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 67f3515f07e7a..aee42eae4729f 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1516,7 +1516,7 @@ capture_engine(struct intel_engine_cs *engine,
 	struct i915_request *rq = NULL;
 	unsigned long flags;
 
-	ee = intel_engine_coredump_alloc(engine, GFP_KERNEL);
+	ee = intel_engine_coredump_alloc(engine, ALLOW_FAIL);
 	if (!ee)
 		return NULL;
 
-- 
2.34.1

[PATCH 2/2] drm/i915/guc: Flush G2H handler during a GT reset

[Matthew Brost]

Now that the error capture is fully decoupled from fence signalling
(request retirement to free memory, which is turn depends on resets) we
can safely flush the G2H handler during a GT reset. This is eliminates
corner cases where GuC generated G2H (e.g. engine resets) race with a GT
reset.

Signed-off-by: Matthew Brost <mattthew.brost@intel.com>
---
 .../gpu/drm/i915/gt/uc/intel_guc_submission.c  | 18 +-----------------
 1 file changed, 1 insertion(+), 17 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 23a40f10d376d..f8614ff904b2b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1396,8 +1396,6 @@ static void guc_flush_destroyed_contexts(struct intel_guc *guc);
 
 void intel_guc_submission_reset_prepare(struct intel_guc *guc)
 {
-	int i;
-
 	if (unlikely(!guc_submission_initialized(guc))) {
 		/* Reset called during driver load? GuC not yet initialised! */
 		return;
@@ -1414,21 +1412,7 @@ void intel_guc_submission_reset_prepare(struct intel_guc *guc)
 
 	guc_flush_submissions(guc);
 	guc_flush_destroyed_contexts(guc);
-
-	/*
-	 * Handle any outstanding G2Hs before reset. Call IRQ handler directly
-	 * each pass as interrupt have been disabled. We always scrub for
-	 * outstanding G2H as it is possible for outstanding_submission_g2h to
-	 * be incremented after the context state update.
-	 */
-	for (i = 0; i < 4 && atomic_read(&guc->outstanding_submission_g2h); ++i) {
-		intel_guc_to_host_event_handler(guc);
-#define wait_for_reset(guc, wait_var) \
-		intel_guc_wait_for_pending_msg(guc, wait_var, false, (HZ / 20))
-		do {
-			wait_for_reset(guc, &guc->outstanding_submission_g2h);
-		} while (!list_empty(&guc->ct.requests.incoming));
-	}
+	flush_work(&guc->ct.requests.worker);
 
 	scrub_guc_desc_for_outstanding_g2h(guc);
 }
-- 
2.34.1

[Intel-gfx] [PATCH 2/2] drm/i915/guc: Flush G2H handler during a GT reset

[Matthew Brost]

Now that the error capture is fully decoupled from fence signalling
(request retirement to free memory, which is turn depends on resets) we
can safely flush the G2H handler during a GT reset. This is eliminates
corner cases where GuC generated G2H (e.g. engine resets) race with a GT
reset.

Signed-off-by: Matthew Brost <mattthew.brost@intel.com>
---
 .../gpu/drm/i915/gt/uc/intel_guc_submission.c  | 18 +-----------------
 1 file changed, 1 insertion(+), 17 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 23a40f10d376d..f8614ff904b2b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1396,8 +1396,6 @@ static void guc_flush_destroyed_contexts(struct intel_guc *guc);
 
 void intel_guc_submission_reset_prepare(struct intel_guc *guc)
 {
-	int i;
-
 	if (unlikely(!guc_submission_initialized(guc))) {
 		/* Reset called during driver load? GuC not yet initialised! */
 		return;
@@ -1414,21 +1412,7 @@ void intel_guc_submission_reset_prepare(struct intel_guc *guc)
 
 	guc_flush_submissions(guc);
 	guc_flush_destroyed_contexts(guc);
-
-	/*
-	 * Handle any outstanding G2Hs before reset. Call IRQ handler directly
-	 * each pass as interrupt have been disabled. We always scrub for
-	 * outstanding G2H as it is possible for outstanding_submission_g2h to
-	 * be incremented after the context state update.
-	 */
-	for (i = 0; i < 4 && atomic_read(&guc->outstanding_submission_g2h); ++i) {
-		intel_guc_to_host_event_handler(guc);
-#define wait_for_reset(guc, wait_var) \
-		intel_guc_wait_for_pending_msg(guc, wait_var, false, (HZ / 20))
-		do {
-			wait_for_reset(guc, &guc->outstanding_submission_g2h);
-		} while (!list_empty(&guc->ct.requests.incoming));
-	}
+	flush_work(&guc->ct.requests.worker);
 
 	scrub_guc_desc_for_outstanding_g2h(guc);
 }
-- 
2.34.1

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Flush G2H handler during a GT reset

[Patchwork]

== Series Details ==

Series: Flush G2H handler during a GT reset
URL   : https://patchwork.freedesktop.org/series/98855/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
df8c84b965e7 drm/i915: Allocate intel_engine_coredump_alloc with ALLOW_FAIL
6af3f3db9124 drm/i915/guc: Flush G2H handler during a GT reset
-:49: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email address mismatch: 'From: Matthew Brost <matthew.brost@intel.com>' != 'Signed-off-by: Matthew Brost <mattthew.brost@intel.com>'

total: 0 errors, 1 warnings, 0 checks, 30 lines checked

[Intel-gfx] ✗ Fi.CI.BAT: failure for Flush G2H handler during a GT reset

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 12537 bytes --]

== Series Details ==

Series: Flush G2H handler during a GT reset
URL   : https://patchwork.freedesktop.org/series/98855/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_11079 -> Patchwork_21998
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_21998 absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_21998, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/index.html

Participating hosts (39 -> 42)
------------------------------

  Additional (6): bat-dg1-6 bat-dg1-5 bat-adlp-6 bat-rpls-1 bat-jsl-2 bat-jsl-1 
  Missing    (3): fi-bsw-cyan shard-rkl shard-tglu 

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_21998:

### IGT changes ###

#### Possible regressions ####

  * igt@i915_selftest@live@hangcheck:
    - bat-dg1-5:          NOTRUN -> [INCOMPLETE][1]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@i915_selftest@live@hangcheck.html
    - bat-dg1-6:          NOTRUN -> [INCOMPLETE][2]
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@i915_selftest@live@hangcheck.html

  
Known issues
------------

  Here are the changes found in Patchwork_21998 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_basic@cs-gfx:
    - fi-hsw-4770:        NOTRUN -> [SKIP][3] ([fdo#109271] / [fdo#109315]) +17 similar issues
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/fi-hsw-4770/igt@amdgpu/amd_basic@cs-gfx.html

  * igt@amdgpu/amd_basic@semaphore:
    - fi-bdw-5557u:       NOTRUN -> [SKIP][4] ([fdo#109271]) +31 similar issues
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/fi-bdw-5557u/igt@amdgpu/amd_basic@semaphore.html

  * igt@fbdev@info:
    - bat-dg1-6:          NOTRUN -> [SKIP][5] ([i915#2582]) +4 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@fbdev@info.html

  * igt@gem_exec_gttfill@basic:
    - bat-dg1-6:          NOTRUN -> [SKIP][6] ([i915#4086])
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@gem_exec_gttfill@basic.html
    - bat-dg1-5:          NOTRUN -> [SKIP][7] ([i915#4086])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@gem_exec_gttfill@basic.html

  * igt@gem_mmap@basic:
    - bat-dg1-6:          NOTRUN -> [SKIP][8] ([i915#4083])
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@gem_mmap@basic.html
    - bat-dg1-5:          NOTRUN -> [SKIP][9] ([i915#4083])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@gem_mmap@basic.html

  * igt@gem_tiled_blits@basic:
    - bat-dg1-6:          NOTRUN -> [SKIP][10] ([i915#4077]) +2 similar issues
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@gem_tiled_blits@basic.html

  * igt@gem_tiled_fence_blits@basic:
    - bat-dg1-5:          NOTRUN -> [SKIP][11] ([i915#4077]) +2 similar issues
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@gem_tiled_fence_blits@basic.html

  * igt@gem_tiled_pread_basic:
    - bat-dg1-5:          NOTRUN -> [SKIP][12] ([i915#4079]) +1 similar issue
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@gem_tiled_pread_basic.html
    - bat-dg1-6:          NOTRUN -> [SKIP][13] ([i915#4079]) +1 similar issue
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@gem_tiled_pread_basic.html

  * igt@i915_pm_backlight@basic-brightness:
    - bat-dg1-5:          NOTRUN -> [SKIP][14] ([i915#1155])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@i915_pm_backlight@basic-brightness.html
    - bat-dg1-6:          NOTRUN -> [SKIP][15] ([i915#1155])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@i915_pm_backlight@basic-brightness.html

  * igt@i915_pm_rpm@basic-pci-d3-state:
    - fi-skl-6600u:       [PASS][16] -> [FAIL][17] ([i915#3239])
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11079/fi-skl-6600u/igt@i915_pm_rpm@basic-pci-d3-state.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/fi-skl-6600u/igt@i915_pm_rpm@basic-pci-d3-state.html

  * igt@kms_addfb_basic@addfb25-x-tiled-legacy:
    - bat-dg1-6:          NOTRUN -> [SKIP][18] ([i915#4212]) +7 similar issues
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@kms_addfb_basic@addfb25-x-tiled-legacy.html

  * igt@kms_addfb_basic@basic-y-tiled-legacy:
    - bat-dg1-5:          NOTRUN -> [SKIP][19] ([i915#4215])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@kms_addfb_basic@basic-y-tiled-legacy.html
    - bat-dg1-6:          NOTRUN -> [SKIP][20] ([i915#4215])
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@kms_addfb_basic@basic-y-tiled-legacy.html

  * igt@kms_addfb_basic@tile-pitch-mismatch:
    - bat-dg1-5:          NOTRUN -> [SKIP][21] ([i915#4212]) +7 similar issues
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@kms_addfb_basic@tile-pitch-mismatch.html

  * igt@kms_busy@basic:
    - bat-dg1-6:          NOTRUN -> [SKIP][22] ([i915#4303])
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@kms_busy@basic.html

  * igt@kms_chamelium@dp-crc-fast:
    - fi-bdw-5557u:       NOTRUN -> [SKIP][23] ([fdo#109271] / [fdo#111827]) +8 similar issues
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/fi-bdw-5557u/igt@kms_chamelium@dp-crc-fast.html

  * igt@kms_chamelium@hdmi-edid-read:
    - bat-dg1-6:          NOTRUN -> [SKIP][24] ([fdo#111827]) +8 similar issues
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@kms_chamelium@hdmi-edid-read.html

  * igt@kms_chamelium@hdmi-hpd-fast:
    - bat-dg1-5:          NOTRUN -> [SKIP][25] ([fdo#111827]) +8 similar issues
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@kms_chamelium@hdmi-hpd-fast.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - bat-dg1-6:          NOTRUN -> [SKIP][26] ([i915#4103] / [i915#4213]) +1 similar issue
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy:
    - bat-dg1-5:          NOTRUN -> [SKIP][27] ([i915#4103] / [i915#4213]) +1 similar issue
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html

  * igt@kms_cursor_legacy@basic-flip-after-cursor-legacy:
    - bat-dg1-6:          NOTRUN -> [SKIP][28] ([i915#4078]) +24 similar issues
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@kms_cursor_legacy@basic-flip-after-cursor-legacy.html

  * igt@kms_force_connector_basic@force-load-detect:
    - bat-dg1-6:          NOTRUN -> [SKIP][29] ([fdo#109285])
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@kms_force_connector_basic@force-load-detect.html
    - bat-dg1-5:          NOTRUN -> [SKIP][30] ([fdo#109285])
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@kms_force_connector_basic@force-load-detect.html

  * igt@kms_psr@primary_page_flip:
    - bat-dg1-5:          NOTRUN -> [SKIP][31] ([i915#1072] / [i915#4078]) +3 similar issues
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@kms_psr@primary_page_flip.html

  * igt@kms_psr@sprite_plane_onoff:
    - bat-dg1-6:          NOTRUN -> [SKIP][32] ([i915#1072] / [i915#4078]) +3 similar issues
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@kms_psr@sprite_plane_onoff.html

  * igt@prime_vgem@basic-fence-mmap:
    - bat-dg1-5:          NOTRUN -> [SKIP][33] ([i915#3708] / [i915#4077]) +1 similar issue
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@prime_vgem@basic-fence-mmap.html

  * igt@prime_vgem@basic-gtt:
    - bat-dg1-6:          NOTRUN -> [SKIP][34] ([i915#3708] / [i915#4077]) +1 similar issue
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@prime_vgem@basic-gtt.html

  * igt@prime_vgem@basic-userptr:
    - bat-dg1-6:          NOTRUN -> [SKIP][35] ([i915#3708] / [i915#4873])
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@prime_vgem@basic-userptr.html
    - bat-dg1-5:          NOTRUN -> [SKIP][36] ([i915#3708] / [i915#4873])
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@prime_vgem@basic-userptr.html

  * igt@prime_vgem@basic-write:
    - bat-dg1-5:          NOTRUN -> [SKIP][37] ([i915#3708]) +3 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-5/igt@prime_vgem@basic-write.html
    - bat-dg1-6:          NOTRUN -> [SKIP][38] ([i915#3708]) +3 similar issues
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/bat-dg1-6/igt@prime_vgem@basic-write.html

  
#### Possible fixes ####

  * igt@i915_selftest@live@hangcheck:
    - fi-hsw-4770:        [INCOMPLETE][39] -> [PASS][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11079/fi-hsw-4770/igt@i915_selftest@live@hangcheck.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/fi-hsw-4770/igt@i915_selftest@live@hangcheck.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#109315]: https://bugs.freedesktop.org/show_bug.cgi?id=109315
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#1155]: https://gitlab.freedesktop.org/drm/intel/issues/1155
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#2582]: https://gitlab.freedesktop.org/drm/intel/issues/2582
  [i915#3003]: https://gitlab.freedesktop.org/drm/intel/issues/3003
  [i915#3239]: https://gitlab.freedesktop.org/drm/intel/issues/3239
  [i915#3282]: https://gitlab.freedesktop.org/drm/intel/issues/3282
  [i915#3291]: https://gitlab.freedesktop.org/drm/intel/issues/3291
  [i915#3301]: https://gitlab.freedesktop.org/drm/intel/issues/3301
  [i915#3708]: https://gitlab.freedesktop.org/drm/intel/issues/3708
  [i915#4077]: https://gitlab.freedesktop.org/drm/intel/issues/4077
  [i915#4078]: https://gitlab.freedesktop.org/drm/intel/issues/4078
  [i915#4079]: https://gitlab.freedesktop.org/drm/intel/issues/4079
  [i915#4083]: https://gitlab.freedesktop.org/drm/intel/issues/4083
  [i915#4086]: https://gitlab.freedesktop.org/drm/intel/issues/4086
  [i915#4103]: https://gitlab.freedesktop.org/drm/intel/issues/4103
  [i915#4212]: https://gitlab.freedesktop.org/drm/intel/issues/4212
  [i915#4213]: https://gitlab.freedesktop.org/drm/intel/issues/4213
  [i915#4215]: https://gitlab.freedesktop.org/drm/intel/issues/4215
  [i915#4303]: https://gitlab.freedesktop.org/drm/intel/issues/4303
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#4873]: https://gitlab.freedesktop.org/drm/intel/issues/4873
  [i915#4898]: https://gitlab.freedesktop.org/drm/intel/issues/4898
  [i915#533]: https://gitlab.freedesktop.org/drm/intel/issues/533


Build changes
-------------

  * Linux: CI_DRM_11079 -> Patchwork_21998

  CI-20190529: 20190529
  CI_DRM_11079: fd69ca3bcb1f4080babbb2790de47dad5c14f358 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6326: ec75f64fcbcf4aac58fbf1bf629e8f59b19db4ce @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_21998: 6af3f3db9124ef6e2c0d099b490624d9f3bbc8b7 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

6af3f3db9124 drm/i915/guc: Flush G2H handler during a GT reset
df8c84b965e7 drm/i915: Allocate intel_engine_coredump_alloc with ALLOW_FAIL

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21998/index.html

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