[Intel-gfx] [PATCH] drm/i915/gt: Limit frequency drop to RPe on parking

[Intel-gfx] [PATCH] drm/i915/gt: Limit frequency drop to RPe on parking

[Chris Wilson]

We treat idling the GT (intel_rps_park) as a downclock event, and reduce
the frequency we intend to restart the GT with. Since the two workloads
are likely related (e.g. a compositor rendering every 16ms), we want to
carry the frequency and load information from across the idling.
However, we do also need to update the frequencies so that workloads
that run for less than 1ms are autotuned by RPS (otherwise we leave
compositors running at max clocks, draining excess power). Conversely,
if we try to run too slowly, the next workload has to run longer. Since
there is a hysteresis in the power graph, below a certain frequency
running a short workload for longer consumes more energy than running it
slightly higher for less time. The exact balance point is unknown
beforehand, but measurements with 30fps media playback indicate that RPe
is a better choice.

Reported-by: Edward Baker <edward.baker@intel.com>
Fixes: 043cd2d14ede ("drm/i915/gt: Leave rps->cur_freq on unpark")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Edward Baker <edward.baker@intel.com>
Cc: Andi Shyti <andi.shyti@intel.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org> # v5.8+
---
 drivers/gpu/drm/i915/gt/intel_rps.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index b13e7845d483..f74d5e09e176 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -907,6 +907,10 @@ void intel_rps_park(struct intel_rps *rps)
 		adj = -2;
 	rps->last_adj = adj;
 	rps->cur_freq = max_t(int, rps->cur_freq + adj, rps->min_freq);
+	if (rps->cur_freq < rps->efficient_freq) {
+		rps->cur_freq = rps->efficient_freq;
+		rps->last_adj = 0;
+	}
 
 	GT_TRACE(rps_to_gt(rps), "park:%x\n", rps->cur_freq);
 }
-- 
2.20.1

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Re: [Intel-gfx] [PATCH] drm/i915/gt: Limit frequency drop to RPe on parking

[Rodrigo Vivi]

On Tue, Nov 24, 2020 at 06:35:21PM +0000, Chris Wilson wrote:
> We treat idling the GT (intel_rps_park) as a downclock event, and reduce
> the frequency we intend to restart the GT with. Since the two workloads
> are likely related (e.g. a compositor rendering every 16ms), we want to
> carry the frequency and load information from across the idling.
> However, we do also need to update the frequencies so that workloads
> that run for less than 1ms are autotuned by RPS (otherwise we leave
> compositors running at max clocks, draining excess power). Conversely,
> if we try to run too slowly, the next workload has to run longer. Since
> there is a hysteresis in the power graph, below a certain frequency
> running a short workload for longer consumes more energy than running it
> slightly higher for less time. The exact balance point is unknown
> beforehand, but measurements with 30fps media playback indicate that RPe
> is a better choice.
> 
> Reported-by: Edward Baker <edward.baker@intel.com>
> Fixes: 043cd2d14ede ("drm/i915/gt: Leave rps->cur_freq on unpark")
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Edward Baker <edward.baker@intel.com>
> Cc: Andi Shyti <andi.shyti@intel.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: <stable@vger.kernel.org> # v5.8+
> ---
>  drivers/gpu/drm/i915/gt/intel_rps.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
> index b13e7845d483..f74d5e09e176 100644
> --- a/drivers/gpu/drm/i915/gt/intel_rps.c
> +++ b/drivers/gpu/drm/i915/gt/intel_rps.c
> @@ -907,6 +907,10 @@ void intel_rps_park(struct intel_rps *rps)
>  		adj = -2;
>  	rps->last_adj = adj;
>  	rps->cur_freq = max_t(int, rps->cur_freq + adj, rps->min_freq);
> +	if (rps->cur_freq < rps->efficient_freq) {
> +		rps->cur_freq = rps->efficient_freq;
> +		rps->last_adj = 0;

this is indeed the smallest fix we can propagate:


Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

but I wonder now if we couldn't simply kill the last_adj now and always go
with the rpe on park/unpark

> +	}
>  
>  	GT_TRACE(rps_to_gt(rps), "park:%x\n", rps->cur_freq);
>  }
> -- 
> 2.20.1
> 
> _______________________________________________
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> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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Re: [Intel-gfx] [PATCH] drm/i915/gt: Limit frequency drop to RPe on parking

[Chris Wilson]

Quoting Rodrigo Vivi (2020-11-24 19:46:29)
> On Tue, Nov 24, 2020 at 06:35:21PM +0000, Chris Wilson wrote:
> > We treat idling the GT (intel_rps_park) as a downclock event, and reduce
> > the frequency we intend to restart the GT with. Since the two workloads
> > are likely related (e.g. a compositor rendering every 16ms), we want to
> > carry the frequency and load information from across the idling.
> > However, we do also need to update the frequencies so that workloads
> > that run for less than 1ms are autotuned by RPS (otherwise we leave
> > compositors running at max clocks, draining excess power). Conversely,
> > if we try to run too slowly, the next workload has to run longer. Since
> > there is a hysteresis in the power graph, below a certain frequency
> > running a short workload for longer consumes more energy than running it
> > slightly higher for less time. The exact balance point is unknown
> > beforehand, but measurements with 30fps media playback indicate that RPe
> > is a better choice.
> > 
> > Reported-by: Edward Baker <edward.baker@intel.com>
> > Fixes: 043cd2d14ede ("drm/i915/gt: Leave rps->cur_freq on unpark")
> > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> > Cc: Edward Baker <edward.baker@intel.com>
> > Cc: Andi Shyti <andi.shyti@intel.com>
> > Cc: Lyude Paul <lyude@redhat.com>
> > Cc: <stable@vger.kernel.org> # v5.8+
> > ---
> >  drivers/gpu/drm/i915/gt/intel_rps.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
> > index b13e7845d483..f74d5e09e176 100644
> > --- a/drivers/gpu/drm/i915/gt/intel_rps.c
> > +++ b/drivers/gpu/drm/i915/gt/intel_rps.c
> > @@ -907,6 +907,10 @@ void intel_rps_park(struct intel_rps *rps)
> >               adj = -2;
> >       rps->last_adj = adj;
> >       rps->cur_freq = max_t(int, rps->cur_freq + adj, rps->min_freq);
> > +     if (rps->cur_freq < rps->efficient_freq) {
> > +             rps->cur_freq = rps->efficient_freq;
> > +             rps->last_adj = 0;
> 
> this is indeed the smallest fix we can propagate:
> 
> 
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> 
> but I wonder now if we couldn't simply kill the last_adj now and always go
> with the rpe on park/unpark

Since we often have very bursty workloads that are less than 1ms, we do
want to keep the frequency across idling, or else we incur more latency
than is desired by the user (although unpark latency is no joke,
although that is mostly the context switches). The compromise for always
running shorter than an RPS interval is to "gradually" reduce the
frequency (so that compositors do not get stuck at max clocks, yet those
very same compositors also do require very quick autotuning so that
animations are smooth from idle.) Compute is another one where they have
both sustained and bursty workloads, and the shorter-than-RPS bursty
workloads are naturally expected to be to low latency.

So I still think keeping cur_freq is most often the best approach.
-Chris
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[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/gt: Limit frequency drop to RPe on parking

[Patchwork]

== Series Details ==

Series: drm/i915/gt: Limit frequency drop to RPe on parking
URL   : https://patchwork.freedesktop.org/series/84223/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
29d842e75c62 drm/i915/gt: Limit frequency drop to RPe on parking
-:26: WARNING:BAD_SIGN_OFF: email address '<stable@vger.kernel.org> # v5.8+' might be better as 'stable@vger.kernel.org# v5.8+'
#26: 
Cc: <stable@vger.kernel.org> # v5.8+

total: 0 errors, 1 warnings, 0 checks, 10 lines checked


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[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/gt: Limit frequency drop to RPe on parking

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 4551 bytes --]

== Series Details ==

Series: drm/i915/gt: Limit frequency drop to RPe on parking
URL   : https://patchwork.freedesktop.org/series/84223/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_9385 -> Patchwork_18967
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/index.html

New tests
---------

  New tests have been introduced between CI_DRM_9385 and Patchwork_18967:

### New CI tests (1) ###

  * boot:
    - Statuses : 39 pass(s)
    - Exec time: [0.0] s

  

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

  Here are the changes found in Patchwork_18967 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_mmap_gtt@basic:
    - fi-tgl-y:           [PASS][1] -> [DMESG-WARN][2] ([i915#402]) +2 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/fi-tgl-y/igt@gem_mmap_gtt@basic.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/fi-tgl-y/igt@gem_mmap_gtt@basic.html

  * igt@i915_module_load@reload:
    - fi-byt-j1900:       [PASS][3] -> [DMESG-WARN][4] ([i915#1982]) +1 similar issue
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/fi-byt-j1900/igt@i915_module_load@reload.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/fi-byt-j1900/igt@i915_module_load@reload.html

  * igt@kms_busy@basic@flip:
    - fi-kbl-soraka:      [PASS][5] -> [DMESG-WARN][6] ([i915#1982])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/fi-kbl-soraka/igt@kms_busy@basic@flip.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/fi-kbl-soraka/igt@kms_busy@basic@flip.html
    - fi-tgl-y:           [PASS][7] -> [DMESG-WARN][8] ([i915#1982]) +1 similar issue
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/fi-tgl-y/igt@kms_busy@basic@flip.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/fi-tgl-y/igt@kms_busy@basic@flip.html

  * igt@kms_cursor_legacy@basic-flip-before-cursor-atomic:
    - fi-icl-u2:          [PASS][9] -> [DMESG-WARN][10] ([i915#1982]) +1 similar issue
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/fi-icl-u2/igt@kms_cursor_legacy@basic-flip-before-cursor-atomic.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/fi-icl-u2/igt@kms_cursor_legacy@basic-flip-before-cursor-atomic.html

  
#### Possible fixes ####

  * igt@gem_exec_suspend@basic-s0:
    - fi-cfl-8109u:       [DMESG-WARN][11] ([i915#262]) -> [PASS][12] +1 similar issue
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/fi-cfl-8109u/igt@gem_exec_suspend@basic-s0.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/fi-cfl-8109u/igt@gem_exec_suspend@basic-s0.html

  * igt@i915_pm_rpm@module-reload:
    - fi-byt-j1900:       [DMESG-WARN][13] ([i915#1982]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/fi-byt-j1900/igt@i915_pm_rpm@module-reload.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/fi-byt-j1900/igt@i915_pm_rpm@module-reload.html

  * igt@prime_vgem@basic-read:
    - fi-tgl-y:           [DMESG-WARN][15] ([i915#402]) -> [PASS][16] +1 similar issue
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/fi-tgl-y/igt@prime_vgem@basic-read.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/fi-tgl-y/igt@prime_vgem@basic-read.html

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

  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#262]: https://gitlab.freedesktop.org/drm/intel/issues/262
  [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402


Participating hosts (43 -> 39)
------------------------------

  Missing    (4): fi-ilk-m540 fi-bsw-cyan fi-bdw-samus fi-hsw-4200u 


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

  * Linux: CI_DRM_9385 -> Patchwork_18967

  CI-20190529: 20190529
  CI_DRM_9385: 3d37e624f60f40cea80e784617686ae2917e9b01 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5870: 08b13995b85df26a77212e4fb21fd772976ef33c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_18967: 29d842e75c625457dd1cfe74dea57b8e1e300d17 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

29d842e75c62 drm/i915/gt: Limit frequency drop to RPe on parking

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/index.html

[-- Attachment #1.2: Type: text/html, Size: 5722 bytes --]

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Re: [Intel-gfx] [PATCH] drm/i915/gt: Limit frequency drop to RPe on parking

[Andi Shyti]

Hi Chris,

On Tue, Nov 24, 2020 at 06:35:21PM +0000, Chris Wilson wrote:
> We treat idling the GT (intel_rps_park) as a downclock event, and reduce
> the frequency we intend to restart the GT with. Since the two workloads
> are likely related (e.g. a compositor rendering every 16ms), we want to
> carry the frequency and load information from across the idling.
> However, we do also need to update the frequencies so that workloads
> that run for less than 1ms are autotuned by RPS (otherwise we leave
> compositors running at max clocks, draining excess power). Conversely,
> if we try to run too slowly, the next workload has to run longer. Since
> there is a hysteresis in the power graph, below a certain frequency
> running a short workload for longer consumes more energy than running it
> slightly higher for less time. The exact balance point is unknown
> beforehand, but measurements with 30fps media playback indicate that RPe
> is a better choice.
> 
> Reported-by: Edward Baker <edward.baker@intel.com>
> Fixes: 043cd2d14ede ("drm/i915/gt: Leave rps->cur_freq on unpark")
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Edward Baker <edward.baker@intel.com>
> Cc: Andi Shyti <andi.shyti@intel.com>
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: <stable@vger.kernel.org> # v5.8+
> ---
>  drivers/gpu/drm/i915/gt/intel_rps.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
> index b13e7845d483..f74d5e09e176 100644
> --- a/drivers/gpu/drm/i915/gt/intel_rps.c
> +++ b/drivers/gpu/drm/i915/gt/intel_rps.c
> @@ -907,6 +907,10 @@ void intel_rps_park(struct intel_rps *rps)
>  		adj = -2;
>  	rps->last_adj = adj;
>  	rps->cur_freq = max_t(int, rps->cur_freq + adj, rps->min_freq);
> +	if (rps->cur_freq < rps->efficient_freq) {
> +		rps->cur_freq = rps->efficient_freq;
> +		rps->last_adj = 0;
> +	}

looks OK to me, makes sense:

Reviewed-by: Andi Shyti <andi.shyti@intel.com>

Thanks,
Andi
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[Intel-gfx] ✗ Fi.CI.IGT: failure for drm/i915/gt: Limit frequency drop to RPe on parking

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 18832 bytes --]

== Series Details ==

Series: drm/i915/gt: Limit frequency drop to RPe on parking
URL   : https://patchwork.freedesktop.org/series/84223/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_9385_full -> Patchwork_18967_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_18967_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_18967_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_18967_full:

### IGT changes ###

#### Possible regressions ####

  * igt@i915_selftest@live@gem_contexts:
    - shard-skl:          NOTRUN -> [INCOMPLETE][1]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl2/igt@i915_selftest@live@gem_contexts.html

  
New tests
---------

  New tests have been introduced between CI_DRM_9385_full and Patchwork_18967_full:

### New CI tests (1) ###

  * boot:
    - Statuses : 198 pass(s)
    - Exec time: [0.0] s

  

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

  Here are the changes found in Patchwork_18967_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_mmap_wc@fault-concurrent:
    - shard-iclb:         [PASS][2] -> [DMESG-WARN][3] ([i915#1982])
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-iclb3/igt@gem_mmap_wc@fault-concurrent.html
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-iclb2/igt@gem_mmap_wc@fault-concurrent.html

  * igt@kms_cursor_crc@pipe-b-cursor-128x128-random:
    - shard-skl:          [PASS][4] -> [FAIL][5] ([i915#54]) +3 similar issues
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl5/igt@kms_cursor_crc@pipe-b-cursor-128x128-random.html
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl8/igt@kms_cursor_crc@pipe-b-cursor-128x128-random.html

  * igt@kms_cursor_edge_walk@pipe-b-128x128-top-edge:
    - shard-glk:          [PASS][6] -> [DMESG-WARN][7] ([i915#1982])
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-glk7/igt@kms_cursor_edge_walk@pipe-b-128x128-top-edge.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-glk3/igt@kms_cursor_edge_walk@pipe-b-128x128-top-edge.html

  * igt@kms_flip@2x-plain-flip-fb-recreate-interruptible@bc-hdmi-a1-hdmi-a2:
    - shard-glk:          [PASS][8] -> [FAIL][9] ([i915#2122])
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-glk4/igt@kms_flip@2x-plain-flip-fb-recreate-interruptible@bc-hdmi-a1-hdmi-a2.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-glk3/igt@kms_flip@2x-plain-flip-fb-recreate-interruptible@bc-hdmi-a1-hdmi-a2.html

  * igt@kms_flip@2x-plain-flip-ts-check-interruptible@ab-vga1-hdmi-a1:
    - shard-hsw:          [PASS][10] -> [DMESG-WARN][11] ([i915#1982])
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-hsw4/igt@kms_flip@2x-plain-flip-ts-check-interruptible@ab-vga1-hdmi-a1.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-hsw6/igt@kms_flip@2x-plain-flip-ts-check-interruptible@ab-vga1-hdmi-a1.html

  * igt@kms_flip@plain-flip-fb-recreate@a-edp1:
    - shard-skl:          [PASS][12] -> [DMESG-FAIL][13] ([i915#1982])
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl10/igt@kms_flip@plain-flip-fb-recreate@a-edp1.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl5/igt@kms_flip@plain-flip-fb-recreate@a-edp1.html

  * igt@kms_flip@plain-flip-ts-check-interruptible@c-edp1:
    - shard-skl:          [PASS][14] -> [FAIL][15] ([i915#2122])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl3/igt@kms_flip@plain-flip-ts-check-interruptible@c-edp1.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl3/igt@kms_flip@plain-flip-ts-check-interruptible@c-edp1.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-indfb-msflip-blt:
    - shard-tglb:         [PASS][16] -> [DMESG-WARN][17] ([i915#1982])
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-tglb1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-indfb-msflip-blt.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-tglb7/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-indfb-msflip-blt.html

  * igt@kms_frontbuffer_tracking@fbc-rgb565-draw-mmap-cpu:
    - shard-snb:          [PASS][18] -> [SKIP][19] ([fdo#109271]) +2 similar issues
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-snb5/igt@kms_frontbuffer_tracking@fbc-rgb565-draw-mmap-cpu.html
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-snb4/igt@kms_frontbuffer_tracking@fbc-rgb565-draw-mmap-cpu.html

  * igt@kms_frontbuffer_tracking@psr-1p-primscrn-pri-shrfb-draw-pwrite:
    - shard-skl:          [PASS][20] -> [DMESG-WARN][21] ([i915#1982]) +3 similar issues
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl3/igt@kms_frontbuffer_tracking@psr-1p-primscrn-pri-shrfb-draw-pwrite.html
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl3/igt@kms_frontbuffer_tracking@psr-1p-primscrn-pri-shrfb-draw-pwrite.html

  * igt@kms_plane_alpha_blend@pipe-a-coverage-7efc:
    - shard-skl:          [PASS][22] -> [FAIL][23] ([fdo#108145] / [i915#265])
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl10/igt@kms_plane_alpha_blend@pipe-a-coverage-7efc.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl5/igt@kms_plane_alpha_blend@pipe-a-coverage-7efc.html

  * igt@kms_plane_lowres@pipe-a-tiling-y:
    - shard-apl:          [PASS][24] -> [DMESG-WARN][25] ([i915#1635] / [i915#1982] / [i915#2621])
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-apl6/igt@kms_plane_lowres@pipe-a-tiling-y.html
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-apl6/igt@kms_plane_lowres@pipe-a-tiling-y.html

  * igt@kms_psr@psr2_sprite_plane_move:
    - shard-iclb:         [PASS][26] -> [SKIP][27] ([fdo#109441]) +1 similar issue
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-iclb2/igt@kms_psr@psr2_sprite_plane_move.html
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-iclb8/igt@kms_psr@psr2_sprite_plane_move.html

  * igt@kms_vblank@pipe-b-wait-forked-busy:
    - shard-kbl:          [PASS][28] -> [DMESG-WARN][29] ([i915#1982]) +6 similar issues
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-kbl3/igt@kms_vblank@pipe-b-wait-forked-busy.html
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-kbl4/igt@kms_vblank@pipe-b-wait-forked-busy.html
    - shard-apl:          [PASS][30] -> [DMESG-WARN][31] ([i915#1635] / [i915#1982]) +2 similar issues
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-apl8/igt@kms_vblank@pipe-b-wait-forked-busy.html
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-apl7/igt@kms_vblank@pipe-b-wait-forked-busy.html

  * igt@sysfs_timeslice_duration@timeout@bcs0:
    - shard-skl:          [PASS][32] -> [FAIL][33] ([i915#1732])
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl1/igt@sysfs_timeslice_duration@timeout@bcs0.html
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl4/igt@sysfs_timeslice_duration@timeout@bcs0.html

  
#### Possible fixes ####

  * igt@drm_read@fault-buffer:
    - shard-glk:          [DMESG-WARN][34] ([i915#1982]) -> [PASS][35] +1 similar issue
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-glk4/igt@drm_read@fault-buffer.html
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-glk1/igt@drm_read@fault-buffer.html

  * {igt@gem_exec_capture@pi@bcs0}:
    - shard-iclb:         [INCOMPLETE][36] ([i915#2369] / [i915#2502]) -> [PASS][37]
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-iclb5/igt@gem_exec_capture@pi@bcs0.html
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-iclb4/igt@gem_exec_capture@pi@bcs0.html

  * igt@gem_exec_whisper@basic-fds-forked:
    - shard-glk:          [DMESG-WARN][38] ([i915#118] / [i915#95]) -> [PASS][39]
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-glk6/igt@gem_exec_whisper@basic-fds-forked.html
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-glk7/igt@gem_exec_whisper@basic-fds-forked.html

  * igt@i915_module_load@reload:
    - shard-tglb:         [DMESG-WARN][40] ([i915#1982]) -> [PASS][41]
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-tglb2/igt@i915_module_load@reload.html
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-tglb5/igt@i915_module_load@reload.html

  * igt@kms_big_fb@yf-tiled-16bpp-rotate-180:
    - shard-skl:          [DMESG-WARN][42] ([i915#1982]) -> [PASS][43] +2 similar issues
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl9/igt@kms_big_fb@yf-tiled-16bpp-rotate-180.html
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl1/igt@kms_big_fb@yf-tiled-16bpp-rotate-180.html

  * igt@kms_cursor_crc@pipe-a-cursor-256x85-onscreen:
    - shard-skl:          [FAIL][44] ([i915#54]) -> [PASS][45] +7 similar issues
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl5/igt@kms_cursor_crc@pipe-a-cursor-256x85-onscreen.html
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl1/igt@kms_cursor_crc@pipe-a-cursor-256x85-onscreen.html

  * igt@kms_cursor_legacy@2x-long-cursor-vs-flip-legacy:
    - shard-hsw:          [FAIL][46] ([i915#96]) -> [PASS][47]
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-hsw6/igt@kms_cursor_legacy@2x-long-cursor-vs-flip-legacy.html
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-hsw2/igt@kms_cursor_legacy@2x-long-cursor-vs-flip-legacy.html

  * igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-atomic:
    - shard-skl:          [FAIL][48] ([i915#2346]) -> [PASS][49]
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl9/igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-atomic.html
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl1/igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-atomic.html

  * igt@kms_draw_crc@draw-method-xrgb2101010-mmap-wc-ytiled:
    - shard-apl:          [DMESG-WARN][50] ([i915#1635] / [i915#1982]) -> [PASS][51]
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-apl2/igt@kms_draw_crc@draw-method-xrgb2101010-mmap-wc-ytiled.html
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-apl4/igt@kms_draw_crc@draw-method-xrgb2101010-mmap-wc-ytiled.html

  * igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1:
    - shard-tglb:         [FAIL][52] ([i915#2598]) -> [PASS][53]
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-tglb3/igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1.html
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-tglb3/igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1.html

  * igt@kms_flip@flip-vs-expired-vblank@b-edp1:
    - shard-skl:          [FAIL][54] ([i915#2122]) -> [PASS][55]
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl5/igt@kms_flip@flip-vs-expired-vblank@b-edp1.html
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl1/igt@kms_flip@flip-vs-expired-vblank@b-edp1.html

  * igt@kms_flip@flip-vs-suspend@c-edp1:
    - shard-skl:          [INCOMPLETE][56] -> [PASS][57]
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl6/igt@kms_flip@flip-vs-suspend@c-edp1.html
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl5/igt@kms_flip@flip-vs-suspend@c-edp1.html

  * igt@kms_flip@plain-flip-ts-check@a-dp1:
    - shard-kbl:          [DMESG-WARN][58] ([i915#1982]) -> [PASS][59] +1 similar issue
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-kbl4/igt@kms_flip@plain-flip-ts-check@a-dp1.html
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-kbl6/igt@kms_flip@plain-flip-ts-check@a-dp1.html

  * igt@kms_frontbuffer_tracking@psr-suspend:
    - shard-skl:          [INCOMPLETE][60] ([i915#123]) -> [PASS][61]
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl9/igt@kms_frontbuffer_tracking@psr-suspend.html
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl8/igt@kms_frontbuffer_tracking@psr-suspend.html

  * igt@kms_pipe_crc_basic@disable-crc-after-crtc-pipe-b:
    - shard-snb:          [SKIP][62] ([fdo#109271]) -> [PASS][63] +2 similar issues
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-snb2/igt@kms_pipe_crc_basic@disable-crc-after-crtc-pipe-b.html
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-snb6/igt@kms_pipe_crc_basic@disable-crc-after-crtc-pipe-b.html

  * igt@kms_psr@psr2_cursor_mmap_cpu:
    - shard-iclb:         [SKIP][64] ([fdo#109441]) -> [PASS][65] +2 similar issues
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-iclb3/igt@kms_psr@psr2_cursor_mmap_cpu.html
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-iclb2/igt@kms_psr@psr2_cursor_mmap_cpu.html

  
#### Warnings ####

  * igt@i915_pm_backlight@fade_with_suspend:
    - shard-tglb:         [INCOMPLETE][66] ([i915#1436] / [i915#1602] / [i915#1887] / [i915#2369] / [i915#2411] / [i915#456]) -> [DMESG-WARN][67] ([i915#1436] / [i915#1602] / [i915#1887] / [i915#2411])
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-tglb7/igt@i915_pm_backlight@fade_with_suspend.html
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-tglb5/igt@i915_pm_backlight@fade_with_suspend.html

  * igt@i915_pm_rc6_residency@rc6-fence:
    - shard-iclb:         [WARN][68] ([i915#1804] / [i915#2684]) -> [WARN][69] ([i915#2684])
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-iclb4/igt@i915_pm_rc6_residency@rc6-fence.html
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-iclb5/igt@i915_pm_rc6_residency@rc6-fence.html

  * igt@kms_dp_dsc@basic-dsc-enable-edp:
    - shard-iclb:         [DMESG-WARN][70] ([i915#1226]) -> [SKIP][71] ([fdo#109349])
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-iclb2/igt@kms_dp_dsc@basic-dsc-enable-edp.html
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-iclb4/igt@kms_dp_dsc@basic-dsc-enable-edp.html

  * igt@runner@aborted:
    - shard-hsw:          [FAIL][72] ([i915#2283] / [i915#2295] / [i915#483]) -> [FAIL][73] ([i915#2283] / [i915#2295])
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-hsw1/igt@runner@aborted.html
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-hsw5/igt@runner@aborted.html
    - shard-skl:          ([FAIL][74], [FAIL][75], [FAIL][76]) ([i915#1814] / [i915#2029] / [i915#2295]) -> ([FAIL][77], [FAIL][78]) ([i915#2295] / [i915#483])
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl2/igt@runner@aborted.html
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl3/igt@runner@aborted.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9385/shard-skl3/igt@runner@aborted.html
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl6/igt@runner@aborted.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18967/shard-skl7/igt@runner@aborted.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#109349]: https://bugs.freedesktop.org/show_bug.cgi?id=109349
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1226]: https://gitlab.freedesktop.org/drm/intel/issues/1226
  [i915#123]: https://gitlab.freedesktop.org/drm/intel/issues/123
  [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
  [i915#1602]: https://gitlab.freedesktop.org/drm/intel/issues/1602
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#1732]: https://gitlab.freedesktop.org/drm/intel/issues/1732
  [i915#1804]: https://gitlab.freedesktop.org/drm/intel/issues/1804
  [i915#1814]: https://gitlab.freedesktop.org/drm/intel/issues/1814
  [i915#1887]: https://gitlab.freedesktop.org/drm/intel/issues/1887
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2029]: https://gitlab.freedesktop.org/drm/intel/issues/2029
  [i915#2122]: https://gitlab.freedesktop.org/drm/intel/issues/2122
  [i915#2283]: https://gitlab.freedesktop.org/drm/intel/issues/2283
  [i915#2295]: https://gitlab.freedesktop.org/drm/intel/issues/2295
  [i915#2346]: https://gitlab.freedesktop.org/drm/intel/issues/2346
  [i915#2369]: https://gitlab.freedesktop.org/drm/intel/issues/2369
  [i915#2411]: https://gitlab.freedesktop.org/drm/intel/issues/2411
  [i915#2502]: https://gitlab.freedesktop.org/drm/intel/issues/2502
  [i915#2598]: https://gitlab.freedesktop.org/drm/intel/issues/2598
  [i915#2621]: https://gitlab.freedesktop.org/drm/intel/issues/2621
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#2684]: https://gitlab.freedesktop.org/drm/intel/issues/2684
  [i915#456]: https://gitlab.freedesktop.org/drm/intel/issues/456
  [i915#483]: https://gitlab.freedesktop.org/drm/intel/issues/483
  [i915#54]: https://gitlab.freedesktop.org/drm/intel/issues/54
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
  [i915#96]: https://gitlab.freedesktop.org/drm/intel/issues/96


Participating hosts (10 -> 10)
------------------------------

  No changes in participating hosts


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

  * Linux: CI_DRM_9385 -> Patchwork_18967

  CI-20190529: 20190529
  CI_DRM_9385: 3d37e624f60f40cea80e784617686ae2917e9b01 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5870: 08b13995b85df26a77212e4fb21fd772976ef33c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_18967: 29d842e75c625457dd1cfe74dea57b8e1e300d17 @ 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_18967/index.html

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