[Intel-gfx] [PATCH] drm/i915: Verify dma_addr in gen8_ggtt_pte_encode

[Intel-gfx] [PATCH] drm/i915: Verify dma_addr in gen8_ggtt_pte_encode

[Piorkowski, Piotr]

From: Piotr Piórkowski <piotr.piorkowski@intel.com>

Until now, the gen8_ggtt_pte_encode function, responsible for the preparation
of GGTT PTE, has not verified in any way whether the address given as the
parameter is correct.
By adding a GGTT address mask, we can easily verify that dma_addr will not fit
in the PTE field.
While around, cleanup a place where we hold all GEN12 GGTT PTE masks,
and the addition of the PTE description.

Bspec: 45015

Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_ggtt.c |  2 ++
 drivers/gpu/drm/i915/gt/intel_gtt.h  | 13 ++++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
index b0b8ded834f0..52b2428da431 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
@@ -193,6 +193,8 @@ static u64 gen8_ggtt_pte_encode(dma_addr_t addr,
 {
 	gen8_pte_t pte = addr | _PAGE_PRESENT;
 
+	GEM_BUG_ON(addr & ~GEN12_GGTT_PTE_ADDR_MASK);
+
 	if (flags & PTE_LM)
 		pte |= GEN12_GGTT_PTE_LM;
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h
index 24b5808df16d..c82bbe307668 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.h
@@ -87,7 +87,18 @@ typedef u64 gen8_pte_t;
 
 #define GEN12_PPGTT_PTE_LM	BIT_ULL(11)
 
-#define GEN12_GGTT_PTE_LM	BIT_ULL(1)
+/*
+ *  DOC: GEN12 GGTT Table Entry format
+ *
+ * +----------+---------+---------+--------------+---------+
+ * |    63:46 |   45:12 |    11:2 |            1 |       0 |
+ * +==========+=========+=========+==============+=========+
+ * |  Ignored | Address | Ignored | Local Memory | Present |
+ * +----------+---------+---------+--------------+---------+
+ */
+
+#define GEN12_GGTT_PTE_LM		BIT_ULL(1)
+#define GEN12_GGTT_PTE_ADDR_MASK	GENMASK_ULL(45, 12)
 
 /*
  * Cacheability Control is a 4-bit value. The low three bits are stored in bits
-- 
2.25.1

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[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915: Verify dma_addr in gen8_ggtt_pte_encode

[Patchwork]

== Series Details ==

Series: drm/i915: Verify dma_addr in gen8_ggtt_pte_encode
URL   : https://patchwork.freedesktop.org/series/87352/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
201369a1d91f drm/i915: Verify dma_addr in gen8_ggtt_pte_encode
-:9: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#9: 
Until now, the gen8_ggtt_pte_encode function, responsible for the preparation

total: 0 errors, 1 warnings, 0 checks, 27 lines checked


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[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Verify dma_addr in gen8_ggtt_pte_encode

[Patchwork]

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== Series Details ==

Series: drm/i915: Verify dma_addr in gen8_ggtt_pte_encode
URL   : https://patchwork.freedesktop.org/series/87352/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_9798 -> Patchwork_19727
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/index.html

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

  Here are the changes found in Patchwork_19727 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@fbdev@write:
    - fi-tgl-y:           [PASS][1] -> [DMESG-WARN][2] ([i915#402]) +1 similar issue
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/fi-tgl-y/igt@fbdev@write.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/fi-tgl-y/igt@fbdev@write.html

  
#### Possible fixes ####

  * igt@i915_hangman@error-state-basic:
    - fi-tgl-y:           [DMESG-WARN][3] ([i915#402]) -> [PASS][4]
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/fi-tgl-y/igt@i915_hangman@error-state-basic.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/fi-tgl-y/igt@i915_hangman@error-state-basic.html

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


Participating hosts (45 -> 41)
------------------------------

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


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

  * Linux: CI_DRM_9798 -> Patchwork_19727

  CI-20190529: 20190529
  CI_DRM_9798: 70e2e79cd772b97799f4cecd823539f452063562 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6013: a6c7181747850161377dae5161d33c0675ab273e @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_19727: 201369a1d91fbc03775a97d3e776dab86436e45f @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

201369a1d91f drm/i915: Verify dma_addr in gen8_ggtt_pte_encode

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/index.html

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[Intel-gfx] ✗ Fi.CI.IGT: failure for drm/i915: Verify dma_addr in gen8_ggtt_pte_encode

[Patchwork]

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== Series Details ==

Series: drm/i915: Verify dma_addr in gen8_ggtt_pte_encode
URL   : https://patchwork.freedesktop.org/series/87352/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_9798_full -> Patchwork_19727_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_19727_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_19727_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_19727_full:

### IGT changes ###

#### Possible regressions ####

  * igt@gem_exec_capture@capture@bcs0:
    - shard-skl:          [PASS][1] -> [FAIL][2]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl9/igt@gem_exec_capture@capture@bcs0.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl3/igt@gem_exec_capture@capture@bcs0.html

  
#### Warnings ####

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-cur-indfb-onoff:
    - shard-hsw:          [SKIP][3] ([fdo#109271]) -> [INCOMPLETE][4]
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-hsw4/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-cur-indfb-onoff.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-hsw2/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-cur-indfb-onoff.html

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

  Here are the changes found in Patchwork_19727_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@feature_discovery@display-2x:
    - shard-iclb:         NOTRUN -> [SKIP][5] ([i915#1839])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@feature_discovery@display-2x.html

  * igt@gem_ctx_persistence@legacy-engines-mixed-process:
    - shard-snb:          NOTRUN -> [SKIP][6] ([fdo#109271] / [i915#1099]) +3 similar issues
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-snb2/igt@gem_ctx_persistence@legacy-engines-mixed-process.html

  * igt@gem_ctx_shared@q-in-order:
    - shard-snb:          NOTRUN -> [SKIP][7] ([fdo#109271]) +331 similar issues
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-snb6/igt@gem_ctx_shared@q-in-order.html

  * igt@gem_exec_fair@basic-flow@rcs0:
    - shard-skl:          NOTRUN -> [SKIP][8] ([fdo#109271]) +127 similar issues
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl5/igt@gem_exec_fair@basic-flow@rcs0.html

  * igt@gem_exec_fair@basic-none-share@rcs0:
    - shard-tglb:         [PASS][9] -> [FAIL][10] ([i915#2842])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-tglb5/igt@gem_exec_fair@basic-none-share@rcs0.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-tglb8/igt@gem_exec_fair@basic-none-share@rcs0.html

  * igt@gem_exec_fair@basic-none-vip@rcs0:
    - shard-iclb:         NOTRUN -> [FAIL][11] ([i915#2842])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@gem_exec_fair@basic-none-vip@rcs0.html
    - shard-glk:          [PASS][12] -> [FAIL][13] ([i915#2842])
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-glk5/igt@gem_exec_fair@basic-none-vip@rcs0.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-glk2/igt@gem_exec_fair@basic-none-vip@rcs0.html

  * igt@gem_exec_fair@basic-none@vcs0:
    - shard-apl:          NOTRUN -> [FAIL][14] ([i915#2842])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl7/igt@gem_exec_fair@basic-none@vcs0.html

  * igt@gem_exec_fair@basic-pace@vecs0:
    - shard-kbl:          [PASS][15] -> [SKIP][16] ([fdo#109271]) +1 similar issue
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-kbl1/igt@gem_exec_fair@basic-pace@vecs0.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl4/igt@gem_exec_fair@basic-pace@vecs0.html

  * igt@gem_exec_reloc@basic-wide-active@bcs0:
    - shard-apl:          NOTRUN -> [FAIL][17] ([i915#2389]) +3 similar issues
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl1/igt@gem_exec_reloc@basic-wide-active@bcs0.html

  * igt@gem_huc_copy@huc-copy:
    - shard-apl:          NOTRUN -> [SKIP][18] ([fdo#109271] / [i915#2190])
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl7/igt@gem_huc_copy@huc-copy.html

  * igt@gem_userptr_blits@input-checking:
    - shard-snb:          NOTRUN -> [DMESG-WARN][19] ([i915#3002])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-snb5/igt@gem_userptr_blits@input-checking.html

  * igt@gem_userptr_blits@process-exit-mmap@wb:
    - shard-skl:          NOTRUN -> [SKIP][20] ([fdo#109271] / [i915#1699]) +3 similar issues
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl5/igt@gem_userptr_blits@process-exit-mmap@wb.html

  * igt@gem_userptr_blits@process-exit-mmap@wc:
    - shard-iclb:         NOTRUN -> [SKIP][21] ([i915#1699]) +3 similar issues
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@gem_userptr_blits@process-exit-mmap@wc.html

  * igt@gen9_exec_parse@bb-start-far:
    - shard-iclb:         NOTRUN -> [SKIP][22] ([fdo#112306]) +1 similar issue
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@gen9_exec_parse@bb-start-far.html

  * igt@i915_selftest@live@client:
    - shard-glk:          [PASS][23] -> [DMESG-FAIL][24] ([i915#3047])
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-glk1/igt@i915_selftest@live@client.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-glk1/igt@i915_selftest@live@client.html

  * igt@kms_async_flips@alternate-sync-async-flip:
    - shard-skl:          [PASS][25] -> [FAIL][26] ([i915#2521])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl9/igt@kms_async_flips@alternate-sync-async-flip.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl3/igt@kms_async_flips@alternate-sync-async-flip.html

  * igt@kms_big_fb@x-tiled-32bpp-rotate-90:
    - shard-iclb:         NOTRUN -> [SKIP][27] ([fdo#110725] / [fdo#111614])
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_big_fb@x-tiled-32bpp-rotate-90.html

  * igt@kms_big_fb@y-tiled-32bpp-rotate-270:
    - shard-skl:          [PASS][28] -> [DMESG-WARN][29] ([i915#1982])
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl5/igt@kms_big_fb@y-tiled-32bpp-rotate-270.html
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl2/igt@kms_big_fb@y-tiled-32bpp-rotate-270.html

  * igt@kms_big_joiner@basic:
    - shard-apl:          NOTRUN -> [SKIP][30] ([fdo#109271] / [i915#2705])
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl6/igt@kms_big_joiner@basic.html

  * igt@kms_ccs@pipe-c-crc-sprite-planes-basic:
    - shard-skl:          NOTRUN -> [SKIP][31] ([fdo#109271] / [fdo#111304]) +1 similar issue
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl9/igt@kms_ccs@pipe-c-crc-sprite-planes-basic.html

  * igt@kms_chamelium@hdmi-audio:
    - shard-iclb:         NOTRUN -> [SKIP][32] ([fdo#109284] / [fdo#111827]) +5 similar issues
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@kms_chamelium@hdmi-audio.html

  * igt@kms_chamelium@hdmi-audio-edid:
    - shard-kbl:          NOTRUN -> [SKIP][33] ([fdo#109271] / [fdo#111827]) +5 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl4/igt@kms_chamelium@hdmi-audio-edid.html

  * igt@kms_color@pipe-b-ctm-0-25:
    - shard-iclb:         NOTRUN -> [FAIL][34] ([i915#1149] / [i915#315]) +2 similar issues
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_color@pipe-b-ctm-0-25.html

  * igt@kms_color@pipe-d-ctm-max:
    - shard-iclb:         NOTRUN -> [SKIP][35] ([fdo#109278] / [i915#1149])
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@kms_color@pipe-d-ctm-max.html

  * igt@kms_color_chamelium@pipe-a-ctm-limited-range:
    - shard-apl:          NOTRUN -> [SKIP][36] ([fdo#109271] / [fdo#111827]) +16 similar issues
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl6/igt@kms_color_chamelium@pipe-a-ctm-limited-range.html

  * igt@kms_color_chamelium@pipe-d-ctm-0-25:
    - shard-skl:          NOTRUN -> [SKIP][37] ([fdo#109271] / [fdo#111827]) +12 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl9/igt@kms_color_chamelium@pipe-d-ctm-0-25.html

  * igt@kms_color_chamelium@pipe-d-ctm-0-5:
    - shard-snb:          NOTRUN -> [SKIP][38] ([fdo#109271] / [fdo#111827]) +19 similar issues
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-snb6/igt@kms_color_chamelium@pipe-d-ctm-0-5.html
    - shard-iclb:         NOTRUN -> [SKIP][39] ([fdo#109278] / [fdo#109284] / [fdo#111827])
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_color_chamelium@pipe-d-ctm-0-5.html

  * igt@kms_content_protection@lic:
    - shard-iclb:         NOTRUN -> [SKIP][40] ([fdo#109300] / [fdo#111066])
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_content_protection@lic.html

  * igt@kms_content_protection@srm:
    - shard-apl:          NOTRUN -> [TIMEOUT][41] ([i915#1319])
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl6/igt@kms_content_protection@srm.html

  * igt@kms_cursor_crc@pipe-b-cursor-512x512-offscreen:
    - shard-iclb:         NOTRUN -> [SKIP][42] ([fdo#109278] / [fdo#109279]) +1 similar issue
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@kms_cursor_crc@pipe-b-cursor-512x512-offscreen.html

  * igt@kms_cursor_crc@pipe-b-cursor-suspend:
    - shard-kbl:          [PASS][43] -> [DMESG-WARN][44] ([i915#180])
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-kbl1/igt@kms_cursor_crc@pipe-b-cursor-suspend.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl2/igt@kms_cursor_crc@pipe-b-cursor-suspend.html

  * igt@kms_cursor_crc@pipe-c-cursor-128x128-sliding:
    - shard-skl:          NOTRUN -> [FAIL][45] ([i915#54]) +1 similar issue
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl10/igt@kms_cursor_crc@pipe-c-cursor-128x128-sliding.html

  * igt@kms_cursor_crc@pipe-c-cursor-64x21-random:
    - shard-skl:          [PASS][46] -> [FAIL][47] ([i915#54]) +15 similar issues
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl5/igt@kms_cursor_crc@pipe-c-cursor-64x21-random.html
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl2/igt@kms_cursor_crc@pipe-c-cursor-64x21-random.html

  * igt@kms_cursor_crc@pipe-d-cursor-suspend:
    - shard-kbl:          NOTRUN -> [SKIP][48] ([fdo#109271]) +66 similar issues
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl1/igt@kms_cursor_crc@pipe-d-cursor-suspend.html

  * igt@kms_cursor_legacy@2x-long-cursor-vs-flip-legacy:
    - shard-hsw:          [PASS][49] -> [FAIL][50] ([i915#96])
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-hsw4/igt@kms_cursor_legacy@2x-long-cursor-vs-flip-legacy.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-hsw8/igt@kms_cursor_legacy@2x-long-cursor-vs-flip-legacy.html

  * igt@kms_cursor_legacy@cursorb-vs-flipb-varying-size:
    - shard-iclb:         NOTRUN -> [SKIP][51] ([fdo#109274] / [fdo#109278])
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_cursor_legacy@cursorb-vs-flipb-varying-size.html

  * igt@kms_cursor_legacy@flip-vs-cursor-atomic:
    - shard-tglb:         [PASS][52] -> [FAIL][53] ([i915#2346])
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-tglb8/igt@kms_cursor_legacy@flip-vs-cursor-atomic.html
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-tglb7/igt@kms_cursor_legacy@flip-vs-cursor-atomic.html

  * igt@kms_dp_dsc@basic-dsc-enable-dp:
    - shard-iclb:         NOTRUN -> [SKIP][54] ([fdo#109349])
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@kms_dp_dsc@basic-dsc-enable-dp.html

  * igt@kms_flip@2x-flip-vs-modeset-vs-hang:
    - shard-iclb:         NOTRUN -> [SKIP][55] ([fdo#109274]) +2 similar issues
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@kms_flip@2x-flip-vs-modeset-vs-hang.html

  * igt@kms_flip@flip-vs-suspend@c-dp1:
    - shard-apl:          NOTRUN -> [DMESG-WARN][56] ([i915#180]) +2 similar issues
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl8/igt@kms_flip@flip-vs-suspend@c-dp1.html

  * igt@kms_flip@plain-flip-ts-check-interruptible@c-edp1:
    - shard-skl:          [PASS][57] -> [FAIL][58] ([i915#2122])
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl5/igt@kms_flip@plain-flip-ts-check-interruptible@c-edp1.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl2/igt@kms_flip@plain-flip-ts-check-interruptible@c-edp1.html

  * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-16bpp-ytile:
    - shard-skl:          NOTRUN -> [FAIL][59] ([i915#2628])
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl5/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-16bpp-ytile.html

  * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytile:
    - shard-apl:          NOTRUN -> [FAIL][60] ([i915#2641])
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl6/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytile.html

  * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytilercccs:
    - shard-kbl:          NOTRUN -> [SKIP][61] ([fdo#109271] / [i915#2672])
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl4/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytilercccs.html

  * igt@kms_flip_tiling@flip-to-y-tiled@edp-1-pipe-b:
    - shard-skl:          [PASS][62] -> [FAIL][63] ([i915#167])
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl10/igt@kms_flip_tiling@flip-to-y-tiled@edp-1-pipe-b.html
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl4/igt@kms_flip_tiling@flip-to-y-tiled@edp-1-pipe-b.html

  * igt@kms_frontbuffer_tracking@fbcpsr-2p-scndscrn-spr-indfb-draw-pwrite:
    - shard-iclb:         NOTRUN -> [SKIP][64] ([fdo#109280]) +15 similar issues
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_frontbuffer_tracking@fbcpsr-2p-scndscrn-spr-indfb-draw-pwrite.html

  * igt@kms_hdr@bpc-switch-suspend:
    - shard-skl:          [PASS][65] -> [FAIL][66] ([i915#1188]) +1 similar issue
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl7/igt@kms_hdr@bpc-switch-suspend.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl1/igt@kms_hdr@bpc-switch-suspend.html

  * igt@kms_hdr@static-toggle-dpms:
    - shard-iclb:         NOTRUN -> [SKIP][67] ([i915#1187])
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_hdr@static-toggle-dpms.html

  * igt@kms_pipe_crc_basic@nonblocking-crc-pipe-d-frame-sequence:
    - shard-kbl:          NOTRUN -> [SKIP][68] ([fdo#109271] / [i915#533]) +1 similar issue
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl7/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-d-frame-sequence.html

  * igt@kms_pipe_crc_basic@read-crc-pipe-d-frame-sequence:
    - shard-apl:          NOTRUN -> [SKIP][69] ([fdo#109271] / [i915#533])
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl3/igt@kms_pipe_crc_basic@read-crc-pipe-d-frame-sequence.html
    - shard-skl:          NOTRUN -> [SKIP][70] ([fdo#109271] / [i915#533])
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl10/igt@kms_pipe_crc_basic@read-crc-pipe-d-frame-sequence.html

  * igt@kms_plane_alpha_blend@pipe-a-alpha-opaque-fb:
    - shard-apl:          NOTRUN -> [FAIL][71] ([fdo#108145] / [i915#265]) +1 similar issue
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl7/igt@kms_plane_alpha_blend@pipe-a-alpha-opaque-fb.html

  * igt@kms_plane_alpha_blend@pipe-a-constant-alpha-max:
    - shard-kbl:          NOTRUN -> [FAIL][72] ([fdo#108145] / [i915#265])
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl1/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-max.html

  * igt@kms_plane_alpha_blend@pipe-b-alpha-transparent-fb:
    - shard-skl:          NOTRUN -> [FAIL][73] ([i915#265])
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl5/igt@kms_plane_alpha_blend@pipe-b-alpha-transparent-fb.html

  * igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
    - shard-skl:          [PASS][74] -> [FAIL][75] ([fdo#108145] / [i915#265]) +1 similar issue
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl3/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl5/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html

  * igt@kms_plane_alpha_blend@pipe-d-alpha-transparent-fb:
    - shard-iclb:         NOTRUN -> [SKIP][76] ([fdo#109278]) +5 similar issues
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@kms_plane_alpha_blend@pipe-d-alpha-transparent-fb.html

  * igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-2:
    - shard-apl:          NOTRUN -> [SKIP][77] ([fdo#109271] / [i915#658]) +4 similar issues
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl8/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area-2.html

  * igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-3:
    - shard-skl:          NOTRUN -> [SKIP][78] ([fdo#109271] / [i915#658]) +2 similar issues
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl10/igt@kms_psr2_sf@overlay-primary-update-sf-dmg-area-3.html

  * igt@kms_psr2_sf@plane-move-sf-dmg-area-3:
    - shard-kbl:          NOTRUN -> [SKIP][79] ([fdo#109271] / [i915#658]) +1 similar issue
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl7/igt@kms_psr2_sf@plane-move-sf-dmg-area-3.html

  * igt@kms_psr2_sf@primary-plane-update-sf-dmg-area-1:
    - shard-iclb:         NOTRUN -> [SKIP][80] ([i915#658]) +2 similar issues
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_psr2_sf@primary-plane-update-sf-dmg-area-1.html

  * igt@kms_psr@psr2_cursor_mmap_cpu:
    - shard-iclb:         [PASS][81] -> [SKIP][82] ([fdo#109441])
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-iclb2/igt@kms_psr@psr2_cursor_mmap_cpu.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb4/igt@kms_psr@psr2_cursor_mmap_cpu.html

  * igt@kms_psr@psr2_cursor_render:
    - shard-iclb:         NOTRUN -> [SKIP][83] ([fdo#109441]) +1 similar issue
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@kms_psr@psr2_cursor_render.html

  * igt@kms_writeback@writeback-check-output:
    - shard-apl:          NOTRUN -> [SKIP][84] ([fdo#109271] / [i915#2437])
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl6/igt@kms_writeback@writeback-check-output.html

  * igt@kms_writeback@writeback-pixel-formats:
    - shard-skl:          NOTRUN -> [SKIP][85] ([fdo#109271] / [i915#2437])
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl5/igt@kms_writeback@writeback-pixel-formats.html
    - shard-iclb:         NOTRUN -> [SKIP][86] ([i915#2437])
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@kms_writeback@writeback-pixel-formats.html

  * igt@nouveau_crc@pipe-b-ctx-flip-skip-current-frame:
    - shard-apl:          NOTRUN -> [SKIP][87] ([fdo#109271]) +145 similar issues
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl3/igt@nouveau_crc@pipe-b-ctx-flip-skip-current-frame.html

  * igt@perf@gen12-mi-rpc:
    - shard-iclb:         NOTRUN -> [SKIP][88] ([fdo#109289]) +2 similar issues
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@perf@gen12-mi-rpc.html

  * igt@perf@polling-parameterized:
    - shard-hsw:          [PASS][89] -> [FAIL][90] ([i915#1542])
   [89]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-hsw2/igt@perf@polling-parameterized.html
   [90]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-hsw1/igt@perf@polling-parameterized.html

  * igt@prime_nv_pcopy@test3_2:
    - shard-iclb:         NOTRUN -> [SKIP][91] ([fdo#109291])
   [91]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@prime_nv_pcopy@test3_2.html

  * igt@sysfs_clients@busy@bcs0:
    - shard-kbl:          [PASS][92] -> [FAIL][93] ([i915#3009])
   [92]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-kbl2/igt@sysfs_clients@busy@bcs0.html
   [93]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl4/igt@sysfs_clients@busy@bcs0.html

  * igt@sysfs_clients@recycle-many:
    - shard-snb:          NOTRUN -> [FAIL][94] ([i915#3028])
   [94]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-snb2/igt@sysfs_clients@recycle-many.html

  * igt@sysfs_clients@sema-10@vcs0:
    - shard-apl:          NOTRUN -> [SKIP][95] ([fdo#109271] / [i915#3026]) +2 similar issues
   [95]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl7/igt@sysfs_clients@sema-10@vcs0.html

  * igt@sysfs_clients@split-10@bcs0:
    - shard-kbl:          NOTRUN -> [SKIP][96] ([fdo#109271] / [i915#3026])
   [96]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl7/igt@sysfs_clients@split-10@bcs0.html

  
#### Possible fixes ####

  * igt@feature_discovery@psr2:
    - shard-iclb:         [SKIP][97] ([i915#658]) -> [PASS][98]
   [97]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-iclb1/igt@feature_discovery@psr2.html
   [98]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb2/igt@feature_discovery@psr2.html

  * igt@gem_ctx_persistence@many-contexts:
    - shard-iclb:         [INCOMPLETE][99] ([i915#3057]) -> [PASS][100]
   [99]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-iclb8/igt@gem_ctx_persistence@many-contexts.html
   [100]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb6/igt@gem_ctx_persistence@many-contexts.html

  * igt@gem_eio@unwedge-stress:
    - shard-tglb:         [TIMEOUT][101] ([i915#3063]) -> [PASS][102]
   [101]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-tglb5/igt@gem_eio@unwedge-stress.html
   [102]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-tglb5/igt@gem_eio@unwedge-stress.html
    - shard-iclb:         [TIMEOUT][103] ([i915#2481] / [i915#3070]) -> [PASS][104]
   [103]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-iclb1/igt@gem_eio@unwedge-stress.html
   [104]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb2/igt@gem_eio@unwedge-stress.html

  * igt@gem_exec_balancer@hang:
    - shard-iclb:         [INCOMPLETE][105] ([i915#1895] / [i915#3031]) -> [PASS][106]
   [105]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-iclb1/igt@gem_exec_balancer@hang.html
   [106]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb8/igt@gem_exec_balancer@hang.html

  * igt@gem_exec_fair@basic-none-rrul@rcs0:
    - shard-kbl:          [FAIL][107] ([i915#2842]) -> [PASS][108]
   [107]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-kbl7/igt@gem_exec_fair@basic-none-rrul@rcs0.html
   [108]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl1/igt@gem_exec_fair@basic-none-rrul@rcs0.html

  * igt@gem_exec_fair@basic-pace@vecs0:
    - shard-tglb:         [FAIL][109] ([i915#2842]) -> [PASS][110] +1 similar issue
   [109]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-tglb7/igt@gem_exec_fair@basic-pace@vecs0.html
   [110]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-tglb7/igt@gem_exec_fair@basic-pace@vecs0.html

  * igt@gem_exec_fair@basic-throttle@rcs0:
    - shard-glk:          [FAIL][111] ([i915#2842]) -> [PASS][112]
   [111]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-glk2/igt@gem_exec_fair@basic-throttle@rcs0.html
   [112]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-glk1/igt@gem_exec_fair@basic-throttle@rcs0.html

  * igt@gem_exec_reloc@basic-many-active@rcs0:
    - shard-glk:          [FAIL][113] ([i915#2389]) -> [PASS][114]
   [113]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-glk3/igt@gem_exec_reloc@basic-many-active@rcs0.html
   [114]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-glk8/igt@gem_exec_reloc@basic-many-active@rcs0.html

  * igt@gem_huc_copy@huc-copy:
    - shard-tglb:         [SKIP][115] ([i915#2190]) -> [PASS][116]
   [115]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-tglb6/igt@gem_huc_copy@huc-copy.html
   [116]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-tglb1/igt@gem_huc_copy@huc-copy.html

  * igt@gem_workarounds@suspend-resume-fd:
    - shard-apl:          [DMESG-WARN][117] ([i915#180]) -> [PASS][118]
   [117]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-apl2/igt@gem_workarounds@suspend-resume-fd.html
   [118]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl3/igt@gem_workarounds@suspend-resume-fd.html

  * igt@gen9_exec_parse@allowed-single:
    - shard-skl:          [DMESG-WARN][119] ([i915#1436] / [i915#716]) -> [PASS][120]
   [119]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl1/igt@gen9_exec_parse@allowed-single.html
   [120]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl9/igt@gen9_exec_parse@allowed-single.html

  * igt@kms_async_flips@test-time-stamp:
    - shard-tglb:         [FAIL][121] ([i915#2574]) -> [PASS][122]
   [121]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-tglb3/igt@kms_async_flips@test-time-stamp.html
   [122]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-tglb1/igt@kms_async_flips@test-time-stamp.html

  * igt@kms_cursor_crc@pipe-a-cursor-256x85-offscreen:
    - shard-skl:          [FAIL][123] ([i915#54]) -> [PASS][124] +6 similar issues
   [123]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl1/igt@kms_cursor_crc@pipe-a-cursor-256x85-offscreen.html
   [124]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl6/igt@kms_cursor_crc@pipe-a-cursor-256x85-offscreen.html

  * igt@kms_cursor_crc@pipe-c-cursor-suspend:
    - shard-kbl:          [DMESG-WARN][125] ([i915#180]) -> [PASS][126] +3 similar issues
   [125]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-kbl2/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
   [126]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-kbl7/igt@kms_cursor_crc@pipe-c-cursor-suspend.html

  * igt@kms_fbcon_fbt@fbc-suspend:
    - shard-apl:          [INCOMPLETE][127] ([i915#180] / [i915#1982]) -> [PASS][128]
   [127]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-apl7/igt@kms_fbcon_fbt@fbc-suspend.html
   [128]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-apl1/igt@kms_fbcon_fbt@fbc-suspend.html

  * igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1:
    - shard-skl:          [FAIL][129] ([i915#79]) -> [PASS][130] +1 similar issue
   [129]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl7/igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1.html
   [130]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl1/igt@kms_flip@flip-vs-expired-vblank-interruptible@a-edp1.html

  * igt@kms_flip@flip-vs-expired-vblank@a-edp1:
    - shard-tglb:         [FAIL][131] ([i915#2598]) -> [PASS][132]
   [131]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-tglb8/igt@kms_flip@flip-vs-expired-vblank@a-edp1.html
   [132]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-tglb2/igt@kms_flip@flip-vs-expired-vblank@a-edp1.html

  * igt@kms_flip@plain-flip-fb-recreate-interruptible@c-edp1:
    - shard-skl:          [FAIL][133] ([i915#2122]) -> [PASS][134] +3 similar issues
   [133]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-skl3/igt@kms_flip@plain-flip-fb-recreate-interruptible@c-edp1.html
   [134]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-skl5/igt@kms_flip@plain-flip-fb-recreate-interruptible@c-edp1.html

  * igt@kms_psr2_su@frontbuffer:
    - shard-iclb:         [SKIP][135] ([fdo#109642] / [fdo#111068] / [i915#658]) -> [PASS][136] +1 similar issue
   [135]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-iclb3/igt@kms_psr2_su@frontbuffer.html
   [136]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb2/igt@kms_psr2_su@frontbuffer.html

  * igt@kms_psr@psr2_sprite_plane_move:
    - shard-iclb:         [SKIP][137] ([fdo#109441]) -> [PASS][138] +1 similar issue
   [137]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-iclb1/igt@kms_psr@psr2_sprite_plane_move.html
   [138]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-iclb2/igt@kms_psr@psr2_sprite_plane_move.html

  * igt@kms_vblank@pipe-b-query-forked-busy:
    - shard-snb:          [SKIP][139] ([fdo#109271]) -> [PASS][140] +1 similar issue
   [139]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9798/shard-snb5/igt@kms_vblank@pipe-b-query-forked-busy.html
   [140]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/shard-snb6/igt@kms_vblank@pipe-b-query-forked-busy.html

  * igt@sysfs_clients@recycle:
    - shard-hsw:          [FAIL][141] ([i915#3028]) -> [PASS][142]
   [141]: htt

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19727/index.html

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Re: [Intel-gfx] [PATCH] drm/i915: Verify dma_addr in gen8_ggtt_pte_encode

[Chris Wilson]

Quoting Piorkowski, Piotr (2021-02-24 15:29:25)
> From: Piotr Piórkowski <piotr.piorkowski@intel.com>
> 
> Until now, the gen8_ggtt_pte_encode function, responsible for the preparation
> of GGTT PTE, has not verified in any way whether the address given as the
> parameter is correct.
> By adding a GGTT address mask, we can easily verify that dma_addr will not fit
> in the PTE field.
> While around, cleanup a place where we hold all GEN12 GGTT PTE masks,
> and the addition of the PTE description.
> 
> Bspec: 45015
> 
> Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
> Cc: Matthew Auld <matthew.auld@intel.com>
> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Cc: Michal Winiarski <michal.winiarski@intel.com>
> ---
>  drivers/gpu/drm/i915/gt/intel_ggtt.c |  2 ++
>  drivers/gpu/drm/i915/gt/intel_gtt.h  | 13 ++++++++++++-
>  2 files changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
> index b0b8ded834f0..52b2428da431 100644
> --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
> @@ -193,6 +193,8 @@ static u64 gen8_ggtt_pte_encode(dma_addr_t addr,
>  {
>         gen8_pte_t pte = addr | _PAGE_PRESENT;
>  
> +       GEM_BUG_ON(addr & ~GEN12_GGTT_PTE_ADDR_MASK);

You can also check the dma_get_mask() doesn't exceed the addr mask.
-Chris
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