[Intel-gfx] [CI 1/2] drm/i915: Disable semaphore inter-engine sync without timeslicing

[Intel-gfx] [CI 1/2] drm/i915: Disable semaphore inter-engine sync without timeslicing

[Chris Wilson]

Since the removal of the no-semaphore boosting, we rely on timeslicing to
reorder passed inter-dependency hogs across the engines. However, we
require preemption to support timeslicing into user payloads, and not all
machine support preemption so we do not universally enable timeslicing,
even when it would correctly preempt our own inter-engine semaphores.
Since timeslicing and semaphore priority deboosting is now disabled on
Broadwell/Braswell, we have to follow suite and not use semaphores.

Testcase: igt/gem_exec_schedule/semaphore-codependency # bdw/bsw
Fixes: 18e4af04d218 ("drm/i915: Drop no-semaphore boosting")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_context.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 900ea8b7fc8f..f5d59d18cd5b 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -230,7 +230,7 @@ static void intel_context_set_gem(struct intel_context *ce,
 		ce->timeline = intel_timeline_get(ctx->timeline);
 
 	if (ctx->sched.priority >= I915_PRIORITY_NORMAL &&
-	    intel_engine_has_semaphores(ce->engine))
+	    intel_engine_has_timeslices(ce->engine))
 		__set_bit(CONTEXT_USE_SEMAPHORES, &ce->flags);
 }
 
@@ -1969,7 +1969,7 @@ static int __apply_priority(struct intel_context *ce, void *arg)
 {
 	struct i915_gem_context *ctx = arg;
 
-	if (!intel_engine_has_semaphores(ce->engine))
+	if (!intel_engine_has_timeslices(ce->engine))
 		return 0;
 
 	if (ctx->sched.priority >= I915_PRIORITY_NORMAL)
-- 
2.20.1

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[Intel-gfx] [CI 2/2] drm/i915: Avoid using rq->engine after free during i915_fence_release

[Chris Wilson]

In order to be valid to dereference during the i915_fence_release, after
retiring the fence and releasing its refererences, we assume that
rq->engine can only be a real engine (that stay intact until the device
is shutdown after all fences have been flushed). However, due to a quirk
of preempt-to-busy, we may retire a request that still belongs to a
virtual engine and so eventually free it with rq->engine being invalid.
To avoid dereferencing that invalid engine, we look at the
execution_mask which if it indicates it may be executed on more than one
engine, we know it originated on a virtual engine and may still be on
one.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1906
Fixes: 43acd6516ca9 ("drm/i915: Keep a per-engine request pool")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/i915_request.c | 35 +++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 526c1e9acbd5..c282719ad3ac 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -121,8 +121,39 @@ static void i915_fence_release(struct dma_fence *fence)
 	i915_sw_fence_fini(&rq->submit);
 	i915_sw_fence_fini(&rq->semaphore);
 
-	/* Keep one request on each engine for reserved use under mempressure */
-	if (!cmpxchg(&rq->engine->request_pool, NULL, rq))
+	/*
+	 * Keep one request on each engine for reserved use under mempressure
+	 *
+	 * We do not hold a reference to the engine here and so have to be
+	 * very careful in what rq->engine we poke. The virtual engine is
+	 * referenced via the rq->context and we released that ref during
+	 * i915_request_retire(), ergo we must not dereference a virtual
+	 * engine here. Not that we would want to, as the only consumer of
+	 * the reserved engine->request_pool is the power management parking,
+	 * which must-not-fail, and that is only run on the physical engines.
+	 *
+	 * Since the request must have been executed to be have completed,
+	 * we know that it will have been processed by the HW and will
+	 * not be unsubmitted again, so rq->engine and rq->execution_mask
+	 * at this point is stable. rq->execution_mask will be a single
+	 * bit if the last and _only_ engine it could execution on was a
+	 * physical engine, if it's multiple bits then it started on and
+	 * could still be on a virtual engine. Thus if the mask is not a
+	 * power-of-two we assume that rq->engine may still be a virtual
+	 * engine and so a dangling invalid pointer that we cannot dereference
+	 *
+	 * For example, consider the flow of a bonded request through a virtual
+	 * engine. The request is created with a wide engine mask (all engines
+	 * that we might execute on). On processing the bond, the request mask
+	 * is reduced to one or more engines. If the request is subsequently
+	 * bound to a single engine, it will then be constrained to only
+	 * execute on that engine and never returned to the virtual engine
+	 * after timeslicing away, see __unwind_incomplete_requests(). Thus we
+	 * know that if the rq->execution_mask is a single bit, rq->engine
+	 * can be a physical engine with the exact corresponding mask.
+	 */
+	if (is_power_of_2(rq->execution_mask) &&
+	    !cmpxchg(&rq->engine->request_pool, NULL, rq))
 		return;
 
 	kmem_cache_free(global.slab_requests, rq);
-- 
2.20.1

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[Intel-gfx] ✗ Fi.CI.SPARSE: warning for series starting with [CI,1/2] drm/i915: Disable semaphore inter-engine sync without timeslicing

[Patchwork]

== Series Details ==

Series: series starting with [CI,1/2] drm/i915: Disable semaphore inter-engine sync without timeslicing
URL   : https://patchwork.freedesktop.org/series/77512/
State : warning

== Summary ==

$ dim sparse --fast origin/drm-tip
Sparse version: v0.6.0
Fast mode used, each commit won't be checked separately.
-
+drivers/gpu/drm/i915/gem/i915_gem_context.c:2274:17: error: bad integer constant expression
+drivers/gpu/drm/i915/gem/i915_gem_context.c:2275:17: error: bad integer constant expression
+drivers/gpu/drm/i915/gem/i915_gem_context.c:2276:17: error: bad integer constant expression
+drivers/gpu/drm/i915/gem/i915_gem_context.c:2277:17: error: bad integer constant expression
+drivers/gpu/drm/i915/gem/i915_gem_context.c:2278:17: error: bad integer constant expression
+drivers/gpu/drm/i915/gem/i915_gem_context.c:2279:17: error: bad integer constant expression

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[Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [CI,1/2] drm/i915: Disable semaphore inter-engine sync without timeslicing

[Patchwork]

== Series Details ==

Series: series starting with [CI,1/2] drm/i915: Disable semaphore inter-engine sync without timeslicing
URL   : https://patchwork.freedesktop.org/series/77512/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8518 -> Patchwork_17751
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/index.html

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

  Here are the changes found in Patchwork_17751 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_selftest@live@client:
    - fi-bwr-2160:        [PASS][1] -> [INCOMPLETE][2] ([i915#489])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/fi-bwr-2160/igt@i915_selftest@live@client.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/fi-bwr-2160/igt@i915_selftest@live@client.html

  
  [i915#489]: https://gitlab.freedesktop.org/drm/intel/issues/489


Participating hosts (47 -> 42)
------------------------------

  Missing    (5): fi-hsw-4200u fi-byt-squawks fi-bsw-cyan fi-byt-clapper fi-bdw-samus 


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

  * Linux: CI_DRM_8518 -> Patchwork_17751

  CI-20190529: 20190529
  CI_DRM_8518: 869a68b66e355733cbebd96443ed56bbf57d7040 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5668: 00d214488f7361c7eceaa8a4a960031f4b467bd5 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17751: c5572b7c8726df714c8de7e782c57d76c930b6a8 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

c5572b7c8726 drm/i915: Avoid using rq->engine after free during i915_fence_release
97a3a7ab6a8b drm/i915: Disable semaphore inter-engine sync without timeslicing

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/index.html
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[Intel-gfx] ✗ Fi.CI.IGT: failure for series starting with [CI,1/2] drm/i915: Disable semaphore inter-engine sync without timeslicing

[Patchwork]

== Series Details ==

Series: series starting with [CI,1/2] drm/i915: Disable semaphore inter-engine sync without timeslicing
URL   : https://patchwork.freedesktop.org/series/77512/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_8518_full -> Patchwork_17751_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_17751_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_17751_full, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  

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

  Here are the unknown changes that may have been introduced in Patchwork_17751_full:

### IGT changes ###

#### Possible regressions ####

  * igt@gem_eio@in-flight-suspend:
    - shard-apl:          [PASS][1] -> [TIMEOUT][2]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-apl6/igt@gem_eio@in-flight-suspend.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-apl2/igt@gem_eio@in-flight-suspend.html

  * igt@kms_plane_scaling@pipe-b-scaler-with-pixel-format:
    - shard-apl:          [PASS][3] -> [FAIL][4] +7 similar issues
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-apl6/igt@kms_plane_scaling@pipe-b-scaler-with-pixel-format.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-apl2/igt@kms_plane_scaling@pipe-b-scaler-with-pixel-format.html

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

  Here are the changes found in Patchwork_17751_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_ctx_persistence@engines-hostile@rcs0:
    - shard-iclb:         [PASS][5] -> [FAIL][6] ([i915#1622])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-iclb8/igt@gem_ctx_persistence@engines-hostile@rcs0.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-iclb7/igt@gem_ctx_persistence@engines-hostile@rcs0.html
    - shard-kbl:          [PASS][7] -> [FAIL][8] ([i915#1622])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-kbl2/igt@gem_ctx_persistence@engines-hostile@rcs0.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-kbl4/igt@gem_ctx_persistence@engines-hostile@rcs0.html

  * igt@kms_cursor_crc@pipe-a-cursor-64x64-random:
    - shard-skl:          [PASS][9] -> [FAIL][10] ([i915#54])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl4/igt@kms_cursor_crc@pipe-a-cursor-64x64-random.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl9/igt@kms_cursor_crc@pipe-a-cursor-64x64-random.html

  * igt@kms_cursor_crc@pipe-b-cursor-suspend:
    - shard-apl:          [PASS][11] -> [DMESG-WARN][12] ([i915#180])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-apl6/igt@kms_cursor_crc@pipe-b-cursor-suspend.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-apl4/igt@kms_cursor_crc@pipe-b-cursor-suspend.html

  * igt@kms_cursor_legacy@pipe-c-torture-move:
    - shard-tglb:         [PASS][13] -> [DMESG-WARN][14] ([i915#128])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-tglb1/igt@kms_cursor_legacy@pipe-c-torture-move.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-tglb3/igt@kms_cursor_legacy@pipe-c-torture-move.html

  * igt@kms_hdr@bpc-switch-suspend:
    - shard-kbl:          [PASS][15] -> [DMESG-WARN][16] ([i915#180]) +1 similar issue
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-kbl6/igt@kms_hdr@bpc-switch-suspend.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-kbl4/igt@kms_hdr@bpc-switch-suspend.html

  * igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min:
    - shard-skl:          [PASS][17] -> [FAIL][18] ([fdo#108145] / [i915#265])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl1/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl10/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html

  * igt@kms_psr@psr2_primary_mmap_cpu:
    - shard-iclb:         [PASS][19] -> [SKIP][20] ([fdo#109441]) +1 similar issue
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-iclb2/igt@kms_psr@psr2_primary_mmap_cpu.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-iclb1/igt@kms_psr@psr2_primary_mmap_cpu.html

  * igt@kms_vblank@pipe-b-ts-continuation-idle-hang:
    - shard-apl:          [PASS][21] -> [SKIP][22] ([fdo#109271]) +6 similar issues
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-apl6/igt@kms_vblank@pipe-b-ts-continuation-idle-hang.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-apl2/igt@kms_vblank@pipe-b-ts-continuation-idle-hang.html

  
#### Possible fixes ####

  * {igt@gem_ctx_isolation@preservation-s3@vecs0}:
    - shard-skl:          [INCOMPLETE][23] ([i915#198]) -> [PASS][24]
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl10/igt@gem_ctx_isolation@preservation-s3@vecs0.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl1/igt@gem_ctx_isolation@preservation-s3@vecs0.html

  * igt@gem_ctx_persistence@engines-hostile@vecs0:
    - shard-iclb:         [FAIL][25] ([i915#1622]) -> [PASS][26]
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-iclb8/igt@gem_ctx_persistence@engines-hostile@vecs0.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-iclb7/igt@gem_ctx_persistence@engines-hostile@vecs0.html

  * {igt@gem_exec_balancer@bonded-true-hang}:
    - shard-tglb:         [TIMEOUT][27] -> [PASS][28]
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-tglb3/igt@gem_exec_balancer@bonded-true-hang.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-tglb2/igt@gem_exec_balancer@bonded-true-hang.html

  * igt@gem_softpin@noreloc-s3:
    - shard-skl:          [INCOMPLETE][29] ([i915#69]) -> [PASS][30]
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl6/igt@gem_softpin@noreloc-s3.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl5/igt@gem_softpin@noreloc-s3.html

  * igt@i915_suspend@forcewake:
    - shard-kbl:          [DMESG-WARN][31] ([i915#180]) -> [PASS][32] +2 similar issues
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-kbl1/igt@i915_suspend@forcewake.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-kbl3/igt@i915_suspend@forcewake.html

  * igt@kms_big_fb@linear-32bpp-rotate-0:
    - shard-kbl:          [FAIL][33] ([i915#1119] / [i915#93] / [i915#95]) -> [PASS][34]
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-kbl3/igt@kms_big_fb@linear-32bpp-rotate-0.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-kbl7/igt@kms_big_fb@linear-32bpp-rotate-0.html

  * {igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1}:
    - shard-skl:          [FAIL][35] ([i915#79]) -> [PASS][36]
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl9/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl7/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html

  * {igt@kms_flip@flip-vs-suspend-interruptible@c-dp1}:
    - shard-apl:          [DMESG-WARN][37] ([i915#180]) -> [PASS][38] +2 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-apl8/igt@kms_flip@flip-vs-suspend-interruptible@c-dp1.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-apl2/igt@kms_flip@flip-vs-suspend-interruptible@c-dp1.html

  * {igt@kms_flip@plain-flip-fb-recreate@b-edp1}:
    - shard-skl:          [FAIL][39] ([i915#1883]) -> [PASS][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl7/igt@kms_flip@plain-flip-fb-recreate@b-edp1.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl8/igt@kms_flip@plain-flip-fb-recreate@b-edp1.html

  * igt@kms_hdr@bpc-switch-dpms:
    - shard-skl:          [FAIL][41] ([i915#1188]) -> [PASS][42]
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl1/igt@kms_hdr@bpc-switch-dpms.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl2/igt@kms_hdr@bpc-switch-dpms.html

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c:
    - shard-skl:          [FAIL][43] ([i915#53]) -> [PASS][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl5/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl7/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c.html

  * igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
    - shard-skl:          [FAIL][45] ([fdo#108145] / [i915#265]) -> [PASS][46]
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-skl5/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-skl7/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html

  * igt@kms_psr@psr2_dpms:
    - shard-iclb:         [SKIP][47] ([fdo#109441]) -> [PASS][48] +1 similar issue
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-iclb3/igt@kms_psr@psr2_dpms.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-iclb2/igt@kms_psr@psr2_dpms.html

  
#### Warnings ####

  * igt@kms_content_protection@atomic-dpms:
    - shard-apl:          [FAIL][49] ([fdo#110321] / [fdo#110336]) -> [TIMEOUT][50] ([i915#1319])
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-apl7/igt@kms_content_protection@atomic-dpms.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-apl6/igt@kms_content_protection@atomic-dpms.html

  * igt@kms_content_protection@uevent:
    - shard-apl:          [FAIL][51] ([i915#357] / [i915#95]) -> [FAIL][52] ([i915#357])
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-apl6/igt@kms_content_protection@uevent.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-apl2/igt@kms_content_protection@uevent.html

  * igt@kms_fbcon_fbt@fbc:
    - shard-apl:          [FAIL][53] ([i915#1121] / [i915#95]) -> [FAIL][54] ([i915#1525])
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8518/shard-apl6/igt@kms_fbcon_fbt@fbc.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/shard-apl2/igt@kms_fbcon_fbt@fbc.html

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

  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
  [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
  [i915#1119]: https://gitlab.freedesktop.org/drm/intel/issues/1119
  [i915#1121]: https://gitlab.freedesktop.org/drm/intel/issues/1121
  [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
  [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
  [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
  [i915#1525]: https://gitlab.freedesktop.org/drm/intel/issues/1525
  [i915#1622]: https://gitlab.freedesktop.org/drm/intel/issues/1622
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1883]: https://gitlab.freedesktop.org/drm/intel/issues/1883
  [i915#198]: https://gitlab.freedesktop.org/drm/intel/issues/198
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#357]: https://gitlab.freedesktop.org/drm/intel/issues/357
  [i915#53]: https://gitlab.freedesktop.org/drm/intel/issues/53
  [i915#54]: https://gitlab.freedesktop.org/drm/intel/issues/54
  [i915#69]: https://gitlab.freedesktop.org/drm/intel/issues/69
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (11 -> 11)
------------------------------

  No changes in participating hosts


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

  * Linux: CI_DRM_8518 -> Patchwork_17751

  CI-20190529: 20190529
  CI_DRM_8518: 869a68b66e355733cbebd96443ed56bbf57d7040 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5668: 00d214488f7361c7eceaa8a4a960031f4b467bd5 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17751: c5572b7c8726df714c8de7e782c57d76c930b6a8 @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17751/index.html
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