[Intel-gfx] [PATCH] drm/i915/selftests: Switch 4k kmalloc to use get_free_page for alignment

[Intel-gfx] [PATCH] drm/i915/selftests: Switch 4k kmalloc to use get_free_page for alignment

[Chris Wilson]

In generating the reference LRC, we want a page-aligned address for
simplicity in computing the offsets within. This then shares the
computation for the HW LRC which is mapped and so page aligned, making
the comparison straightforward. It seems that kmalloc(4k) is not always
returning from a 4k-aligned slab cache (which would give us a page aligned
address) so force alignment by explicitly allocating a page.

Reported-by: "Gote, Nitin R" <nitin.r.gote@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Gote, Nitin R" <nitin.r.gote@intel.com>
---
 drivers/gpu/drm/i915/gt/selftest_lrc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index c8753559c44c..a885f2fb6e66 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -4761,7 +4761,7 @@ static int live_lrc_layout(void *arg)
 	 * match the layout saved by HW.
 	 */
 
-	lrc = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	lrc = (u32 *)__get_free_page(GFP_KERNEL);
 	if (!lrc)
 		return -ENOMEM;
 
@@ -4850,7 +4850,7 @@ static int live_lrc_layout(void *arg)
 			break;
 	}
 
-	kfree(lrc);
+	free_page((unsigned long)lrc);
 	return err;
 }
 
-- 
2.20.1

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[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/selftests: Switch 4k kmalloc to use get_free_page for alignment

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 6833 bytes --]

== Series Details ==

Series: drm/i915/selftests: Switch 4k kmalloc to use get_free_page for alignment
URL   : https://patchwork.freedesktop.org/series/82028/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_9042 -> Patchwork_18555
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/index.html

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

  Here are the changes found in Patchwork_18555 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@kms_busy@basic@flip:
    - fi-kbl-x1275:       [PASS][1] -> [DMESG-WARN][2] ([i915#62] / [i915#92] / [i915#95])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-kbl-x1275/igt@kms_busy@basic@flip.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-kbl-x1275/igt@kms_busy@basic@flip.html

  * igt@kms_flip@basic-flip-vs-wf_vblank@b-edp1:
    - fi-icl-u2:          [PASS][3] -> [DMESG-WARN][4] ([i915#1982])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-icl-u2/igt@kms_flip@basic-flip-vs-wf_vblank@b-edp1.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-icl-u2/igt@kms_flip@basic-flip-vs-wf_vblank@b-edp1.html

  * igt@vgem_basic@sysfs:
    - fi-tgl-y:           [PASS][5] -> [DMESG-WARN][6] ([i915#402])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-tgl-y/igt@vgem_basic@sysfs.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-tgl-y/igt@vgem_basic@sysfs.html

  
#### Possible fixes ####

  * igt@i915_module_load@reload:
    - {fi-tgl-dsi}:       [DMESG-WARN][7] ([i915#1982] / [k.org#205379]) -> [PASS][8]
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-tgl-dsi/igt@i915_module_load@reload.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-tgl-dsi/igt@i915_module_load@reload.html

  * igt@i915_pm_rpm@basic-pci-d3-state:
    - fi-byt-j1900:       [DMESG-WARN][9] ([i915#1982]) -> [PASS][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-byt-j1900/igt@i915_pm_rpm@basic-pci-d3-state.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-byt-j1900/igt@i915_pm_rpm@basic-pci-d3-state.html

  * igt@i915_selftest@live@execlists:
    - {fi-tgl-dsi}:       [INCOMPLETE][11] ([i915#2268]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-tgl-dsi/igt@i915_selftest@live@execlists.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-tgl-dsi/igt@i915_selftest@live@execlists.html

  * igt@kms_chamelium@common-hpd-after-suspend:
    - fi-kbl-7500u:       [DMESG-WARN][13] ([i915#2203]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-kbl-7500u/igt@kms_chamelium@common-hpd-after-suspend.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-kbl-7500u/igt@kms_chamelium@common-hpd-after-suspend.html

  * igt@vgem_basic@debugfs:
    - fi-tgl-y:           [DMESG-WARN][15] ([i915#402]) -> [PASS][16]
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-tgl-y/igt@vgem_basic@debugfs.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-tgl-y/igt@vgem_basic@debugfs.html

  
#### Warnings ####

  * igt@i915_pm_rpm@module-reload:
    - fi-tgl-y:           [DMESG-WARN][17] ([i915#1982] / [i915#2411]) -> [DMESG-WARN][18] ([i915#2411])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-tgl-y/igt@i915_pm_rpm@module-reload.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-tgl-y/igt@i915_pm_rpm@module-reload.html
    - fi-kbl-x1275:       [DMESG-FAIL][19] ([i915#62]) -> [DMESG-FAIL][20] ([i915#62] / [i915#95])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-kbl-x1275/igt@i915_pm_rpm@module-reload.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-kbl-x1275/igt@i915_pm_rpm@module-reload.html
    - fi-kbl-guc:         [DMESG-FAIL][21] ([i915#2203]) -> [DMESG-WARN][22] ([i915#2203])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-kbl-guc/igt@i915_pm_rpm@module-reload.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-kbl-guc/igt@i915_pm_rpm@module-reload.html

  * igt@kms_force_connector_basic@force-edid:
    - fi-kbl-x1275:       [DMESG-WARN][23] ([i915#62] / [i915#92]) -> [DMESG-WARN][24] ([i915#62] / [i915#92] / [i915#95]) +5 similar issues
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html

  * igt@kms_pipe_crc_basic@read-crc-pipe-a-frame-sequence:
    - fi-kbl-x1275:       [DMESG-WARN][25] ([i915#62] / [i915#92] / [i915#95]) -> [DMESG-WARN][26] ([i915#62] / [i915#92]) +2 similar issues
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/fi-kbl-x1275/igt@kms_pipe_crc_basic@read-crc-pipe-a-frame-sequence.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/fi-kbl-x1275/igt@kms_pipe_crc_basic@read-crc-pipe-a-frame-sequence.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#2203]: https://gitlab.freedesktop.org/drm/intel/issues/2203
  [i915#2268]: https://gitlab.freedesktop.org/drm/intel/issues/2268
  [i915#2411]: https://gitlab.freedesktop.org/drm/intel/issues/2411
  [i915#289]: https://gitlab.freedesktop.org/drm/intel/issues/289
  [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
  [i915#62]: https://gitlab.freedesktop.org/drm/intel/issues/62
  [i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
  [k.org#205379]: https://bugzilla.kernel.org/show_bug.cgi?id=205379


Participating hosts (47 -> 40)
------------------------------

  Missing    (7): fi-ilk-m540 fi-hsw-4200u fi-byt-squawks fi-bsw-cyan fi-ctg-p8600 fi-byt-clapper fi-bdw-samus 


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

  * Linux: CI_DRM_9042 -> Patchwork_18555

  CI-20190529: 20190529
  CI_DRM_9042: 1535f1ea9693fe52edf544d584272c1fa283ff8c @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5787: 0ec962017c8131de14e0cb038f7f76b1f17ed637 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_18555: 6c7c70ad7a5e4b247a4bbc7a7058b2188df2eb71 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

6c7c70ad7a5e drm/i915/selftests: Switch 4k kmalloc to use get_free_page for alignment

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/index.html

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_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.IGT: success for drm/i915/selftests: Switch 4k kmalloc to use get_free_page for alignment

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 14720 bytes --]

== Series Details ==

Series: drm/i915/selftests: Switch 4k kmalloc to use get_free_page for alignment
URL   : https://patchwork.freedesktop.org/series/82028/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_9042_full -> Patchwork_18555_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

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

  Here are the changes found in Patchwork_18555_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_ctx_isolation@preservation-s3@vcs0:
    - shard-kbl:          [PASS][1] -> [DMESG-WARN][2] ([i915#180]) +2 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-kbl1/igt@gem_ctx_isolation@preservation-s3@vcs0.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-kbl2/igt@gem_ctx_isolation@preservation-s3@vcs0.html

  * igt@gem_exec_reloc@basic-many-active@rcs0:
    - shard-glk:          [PASS][3] -> [FAIL][4] ([i915#2389]) +1 similar issue
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-glk3/igt@gem_exec_reloc@basic-many-active@rcs0.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-glk1/igt@gem_exec_reloc@basic-many-active@rcs0.html

  * igt@gem_exec_whisper@basic-fds-forked-all:
    - shard-glk:          [PASS][5] -> [DMESG-WARN][6] ([i915#118] / [i915#95])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-glk8/igt@gem_exec_whisper@basic-fds-forked-all.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-glk7/igt@gem_exec_whisper@basic-fds-forked-all.html

  * igt@gem_huc_copy@huc-copy:
    - shard-tglb:         [PASS][7] -> [SKIP][8] ([i915#2190])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-tglb8/igt@gem_huc_copy@huc-copy.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-tglb6/igt@gem_huc_copy@huc-copy.html

  * igt@gem_mmap_offset@blt-coherency:
    - shard-apl:          [PASS][9] -> [FAIL][10] ([i915#1635])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-apl1/igt@gem_mmap_offset@blt-coherency.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-apl3/igt@gem_mmap_offset@blt-coherency.html

  * igt@gem_userptr_blits@unsync-unmap-cycles:
    - shard-skl:          [PASS][11] -> [TIMEOUT][12] ([i915#1958])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl2/igt@gem_userptr_blits@unsync-unmap-cycles.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl6/igt@gem_userptr_blits@unsync-unmap-cycles.html

  * igt@gem_workarounds@basic-read-context:
    - shard-snb:          [PASS][13] -> [TIMEOUT][14] ([i915#1958])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-snb5/igt@gem_workarounds@basic-read-context.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-snb5/igt@gem_workarounds@basic-read-context.html

  * igt@i915_selftest@mock@requests:
    - shard-skl:          [PASS][15] -> [INCOMPLETE][16] ([i915#198] / [i915#2278])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl5/igt@i915_selftest@mock@requests.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl9/igt@i915_selftest@mock@requests.html

  * igt@kms_big_fb@linear-64bpp-rotate-180:
    - shard-iclb:         [PASS][17] -> [DMESG-WARN][18] ([i915#1982])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-iclb3/igt@kms_big_fb@linear-64bpp-rotate-180.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-iclb3/igt@kms_big_fb@linear-64bpp-rotate-180.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - shard-apl:          [PASS][19] -> [DMESG-WARN][20] ([i915#1635] / [i915#1982]) +1 similar issue
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-apl8/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-apl3/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * igt@kms_flip@2x-flip-vs-expired-vblank@ab-hdmi-a1-hdmi-a2:
    - shard-glk:          [PASS][21] -> [FAIL][22] ([i915#79])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-glk8/igt@kms_flip@2x-flip-vs-expired-vblank@ab-hdmi-a1-hdmi-a2.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-glk5/igt@kms_flip@2x-flip-vs-expired-vblank@ab-hdmi-a1-hdmi-a2.html

  * igt@kms_flip@flip-vs-suspend-interruptible@c-hdmi-a1:
    - shard-hsw:          [PASS][23] -> [INCOMPLETE][24] ([i915#2055])
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-hsw2/igt@kms_flip@flip-vs-suspend-interruptible@c-hdmi-a1.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-hsw1/igt@kms_flip@flip-vs-suspend-interruptible@c-hdmi-a1.html

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-pri-indfb-multidraw:
    - shard-tglb:         [PASS][25] -> [DMESG-WARN][26] ([i915#1982]) +5 similar issues
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-tglb8/igt@kms_frontbuffer_tracking@fbcpsr-1p-pri-indfb-multidraw.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-tglb6/igt@kms_frontbuffer_tracking@fbcpsr-1p-pri-indfb-multidraw.html

  * igt@kms_frontbuffer_tracking@psr-1p-offscren-pri-indfb-draw-mmap-cpu:
    - shard-skl:          [PASS][27] -> [FAIL][28] ([i915#49])
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl9/igt@kms_frontbuffer_tracking@psr-1p-offscren-pri-indfb-draw-mmap-cpu.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl5/igt@kms_frontbuffer_tracking@psr-1p-offscren-pri-indfb-draw-mmap-cpu.html

  * igt@kms_hdr@bpc-switch-dpms:
    - shard-skl:          [PASS][29] -> [FAIL][30] ([i915#1188]) +1 similar issue
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl1/igt@kms_hdr@bpc-switch-dpms.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl7/igt@kms_hdr@bpc-switch-dpms.html

  * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
    - shard-skl:          [PASS][31] -> [FAIL][32] ([fdo#108145] / [i915#265]) +2 similar issues
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl6/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl3/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html

  * igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping:
    - shard-skl:          [PASS][33] -> [DMESG-WARN][34] ([i915#1982]) +5 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl6/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl3/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html

  * igt@kms_psr@psr2_sprite_mmap_gtt:
    - shard-iclb:         [PASS][35] -> [SKIP][36] ([fdo#109441]) +2 similar issues
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-iclb2/igt@kms_psr@psr2_sprite_mmap_gtt.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-iclb6/igt@kms_psr@psr2_sprite_mmap_gtt.html

  * igt@kms_vblank@pipe-a-ts-continuation-suspend:
    - shard-skl:          [PASS][37] -> [INCOMPLETE][38] ([i915#198])
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl6/igt@kms_vblank@pipe-a-ts-continuation-suspend.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl3/igt@kms_vblank@pipe-a-ts-continuation-suspend.html

  
#### Possible fixes ####

  * igt@gen9_exec_parse@allowed-all:
    - shard-kbl:          [DMESG-WARN][39] ([i915#1436] / [i915#716]) -> [PASS][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-kbl1/igt@gen9_exec_parse@allowed-all.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-kbl4/igt@gen9_exec_parse@allowed-all.html

  * igt@kms_cursor_crc@pipe-b-cursor-128x128-offscreen:
    - shard-snb:          [SKIP][41] ([fdo#109271]) -> [PASS][42] +2 similar issues
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-snb2/igt@kms_cursor_crc@pipe-b-cursor-128x128-offscreen.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-snb7/igt@kms_cursor_crc@pipe-b-cursor-128x128-offscreen.html

  * igt@kms_cursor_crc@pipe-b-cursor-suspend:
    - shard-skl:          [INCOMPLETE][43] ([i915#300]) -> [PASS][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl4/igt@kms_cursor_crc@pipe-b-cursor-suspend.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl5/igt@kms_cursor_crc@pipe-b-cursor-suspend.html

  * igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions-varying-size:
    - shard-skl:          [DMESG-WARN][45] ([i915#1982]) -> [PASS][46] +2 similar issues
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl9/igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions-varying-size.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl8/igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions-varying-size.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-indfb-pgflip-blt:
    - shard-apl:          [DMESG-WARN][47] ([i915#1635] / [i915#1982]) -> [PASS][48]
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-apl7/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-indfb-pgflip-blt.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-apl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-indfb-pgflip-blt.html

  * igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-move:
    - shard-tglb:         [DMESG-WARN][49] ([i915#1982]) -> [PASS][50]
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-tglb1/igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-move.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-tglb3/igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-move.html

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-b:
    - shard-skl:          [INCOMPLETE][51] ([i915#198]) -> [PASS][52]
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-skl8/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-b.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-skl4/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-b.html

  * igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping:
    - shard-iclb:         [DMESG-WARN][53] ([i915#1982]) -> [PASS][54] +1 similar issue
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-iclb3/igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-iclb6/igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping.html

  * igt@kms_psr@psr2_dpms:
    - shard-iclb:         [SKIP][55] ([fdo#109441]) -> [PASS][56] +1 similar issue
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-iclb6/igt@kms_psr@psr2_dpms.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-iclb2/igt@kms_psr@psr2_dpms.html

  * igt@kms_setmode@basic:
    - shard-apl:          [FAIL][57] ([i915#1635] / [i915#31]) -> [PASS][58]
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-apl7/igt@kms_setmode@basic.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-apl8/igt@kms_setmode@basic.html

  * igt@kms_vblank@pipe-a-ts-continuation-suspend:
    - shard-kbl:          [DMESG-WARN][59] ([i915#180]) -> [PASS][60] +4 similar issues
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-kbl1/igt@kms_vblank@pipe-a-ts-continuation-suspend.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-kbl4/igt@kms_vblank@pipe-a-ts-continuation-suspend.html

  
#### Warnings ####

  * igt@i915_pm_dc@dc3co-vpb-simulation:
    - shard-iclb:         [SKIP][61] ([i915#658]) -> [SKIP][62] ([i915#588])
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9042/shard-iclb6/igt@i915_pm_dc@dc3co-vpb-simulation.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18555/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html

  
  [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
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
  [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
  [i915#198]: https://gitlab.freedesktop.org/drm/intel/issues/198
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2055]: https://gitlab.freedesktop.org/drm/intel/issues/2055
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#2278]: https://gitlab.freedesktop.org/drm/intel/issues/2278
  [i915#2389]: https://gitlab.freedesktop.org/drm/intel/issues/2389
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#300]: https://gitlab.freedesktop.org/drm/intel/issues/300
  [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
  [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
  [i915#588]: https://gitlab.freedesktop.org/drm/intel/issues/588
  [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
  [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


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

  No changes in participating hosts


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

  * Linux: CI_DRM_9042 -> Patchwork_18555

  CI-20190529: 20190529
  CI_DRM_9042: 1535f1ea9693fe52edf544d584272c1fa283ff8c @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5787: 0ec962017c8131de14e0cb038f7f76b1f17ed637 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_18555: 6c7c70ad7a5e4b247a4bbc7a7058b2188df2eb71 @ 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_18555/index.html

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Re: [Intel-gfx] [PATCH] drm/i915/selftests: Switch 4k kmalloc to use get_free_page for alignment

[Matthew Auld]

On Wed, 23 Sep 2020 at 12:42, Chris Wilson <chris@chris-wilson.co.uk> wrote:
>
> In generating the reference LRC, we want a page-aligned address for
> simplicity in computing the offsets within. This then shares the
> computation for the HW LRC which is mapped and so page aligned, making
> the comparison straightforward. It seems that kmalloc(4k) is not always
> returning from a 4k-aligned slab cache (which would give us a page aligned
> address) so force alignment by explicitly allocating a page.
>
> Reported-by: "Gote, Nitin R" <nitin.r.gote@intel.com>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: "Gote, Nitin R" <nitin.r.gote@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
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