drm/i915/cnl: Use mmio access to context status buffer
Subsystems (2)
PATCH 1/1 drm/i915/cnl: Use mmio access to context status buffer
Evidence indicates that Cannonlake HWSP is not coherent as it should. Revert to using mmio access for now.
Testcase: igt/gem_ctx_switch
References: https://bugs.freedesktop.org/show_bug.cgi?id=105888
--- drivers/gpu/drm/i915/intel_engine_cs.c | 3 +++ 1 file changed, 3 insertions(+)
drivers/gpu/drm/i915/intel_engine_cs.c +3 -0
@@ -475,6 +475,9 @@ static bool csb_force_mmio(struct drm_i915_private *i915)if (intel_vgpu_active (i915) && !intel_vgpu_has_hwsp_emulation (i915))return true; +if (IS_CANNONLAKE (i915)) +return true; +return false; }
Signature · 6 lines
2.14.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Quoting Mika Kuoppala (2018-04-12 15:58:02)
Quoted 9 lines
Evidence indicates that Cannonlake HWSP is not coherent as it should. Revert to using mmio access for now.
Testcase: igt/gem_ctx_switch
References: https://bugs.freedesktop.org/show_bug.cgi?id=105888Cc Chris Wilson <[email protected]>Cc Rafael Antognolli <[email protected]>Cc Rodrigo Vivi <[email protected]>Signed-off-by Mika Kuoppala <[email protected]>
-Chris
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Patchwork
CI✓ Fi.CI.BAT: success for drm/i915/cnl: Use mmio access to context status buffer
In reply to Mika Kuoppala== Series Details ==
== Series Details ==
Series: drm/i915/cnl: Use mmio access to context status buffer
URL : https://patchwork.freedesktop.org/series/41630/
State : success
== Summary ==
= CI Bug Log - changes from CI_DRM_4049 -> Patchwork_8679 =
== Summary - SUCCESS ==
No regressions found.
External URL: https://patchwork.freedesktop.org/api/1.0/series/41630/revisions/1/mbox/
== Known issues ==
Here are the changes found in Patchwork_8679 that come from known issues:
=== IGT changes ===
==== Issues hit ====
igt@gem_mmap_gtt@basic-small-bo-tiledx:
fi-gdg-551: PASS -> FAIL (fdo#102575)
igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c:
fi-bxt-dsi: PASS -> INCOMPLETE (fdo#103927) fdo#102575 https://bugs.freedesktop.org/show_bug.cgi?id=102575
fdo#103927 https://bugs.freedesktop.org/show_bug.cgi?id=103927
== Participating hosts (35 -> 33) ==
Additional (1): fi-cnl-y3
Missing (3): fi-ctg-p8600 fi-ilk-m540 fi-skl-6700hq
== Build changes ==
* Linux: CI_DRM_4049 -> Patchwork_8679
CI_DRM_4049: 3dbfa04d62f1f1214a03c3b2d30f987dccf50ab4 @ git://anongit.freedesktop.org/gfx-ci/linux
IGT_4426: d502f055ac4500cada758876a512ac4f14b34851 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
Patchwork_8679: ec952dc37d185165b612080cc6f1683593c275a1 @ git://anongit.freedesktop.org/gfx-ci/linux
piglit_4426: 93b35926a150e318439d2505901288594b3548f5 @ git://anongit.freedesktop.org/piglit
== Linux commits ==
ec952dc37d18 drm/i915/cnl: Use mmio access to context status buffer
== Logs ==
For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_8679/issues.html
_______________________________________________
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Patchwork
CI✓ Fi.CI.IGT: success for drm/i915/cnl: Use mmio access to context status buffer
In reply to Mika Kuoppala== Series Details ==
== Series Details ==
Series: drm/i915/cnl: Use mmio access to context status buffer
URL : https://patchwork.freedesktop.org/series/41630/
State : success
== Summary ==
= CI Bug Log - changes from CI_DRM_4049_full -> Patchwork_8679_full =
== Summary - WARNING ==
Minor unknown changes coming with Patchwork_8679_full need to be verified manually.
If you think the reported changes have nothing to do with the changes introduced in Patchwork_8679_full, please notify your bug team to allow them to document this new failure mode, which will reduce false positives in CI.
External URL: https://patchwork.freedesktop.org/api/1.0/series/41630/revisions/1/mbox/
== Possible new issues ==
Here are the unknown changes that may have been introduced in Patchwork_8679_full:
=== IGT changes ===
==== Warnings ====
igt@gem_mocs_settings@mocs-rc6-blt:
shard-kbl: PASS -> SKIP
igt@gem_mocs_settings@mocs-rc6-vebox:
shard-kbl: SKIP -> PASS== Known issues ==
Here are the changes found in Patchwork_8679_full that come from known issues:
=== IGT changes ===
==== Issues hit ====
igt@kms_flip@2x-flip-vs-expired-vblank-interruptible:
shard-hsw: PASS -> FAIL (fdo#102887) +1
igt@kms_frontbuffer_tracking@fbc-1p-pri-indfb-multidraw:
shard-apl: PASS -> FAIL (fdo#103167)
igt@kms_frontbuffer_tracking@fbc-1p-primscrn-pri-shrfb-draw-render:
shard-snb: PASS -> FAIL (fdo#103167)
igt@kms_pipe_crc_basic@read-crc-pipe-b-frame-sequence:
shard-apl: PASS -> FAIL (fdo#103191)
==== Possible fixes ====
igt@kms_flip@2x-dpms-vs-vblank-race-interruptible:
shard-hsw: FAIL (fdo#103060) -> PASS +1
igt@kms_flip@plain-flip-ts-check-interruptible:
shard-hsw: FAIL (fdo#100368) -> PASS +1 fdo#100368 https://bugs.freedesktop.org/show_bug.cgi?id=100368
fdo#102887 https://bugs.freedesktop.org/show_bug.cgi?id=102887
fdo#103060 https://bugs.freedesktop.org/show_bug.cgi?id=103060
fdo#103167 https://bugs.freedesktop.org/show_bug.cgi?id=103167
fdo#103191 https://bugs.freedesktop.org/show_bug.cgi?id=103191
== Participating hosts (6 -> 4) ==
Missing (2): shard-glk shard-glkb
== Build changes ==
* Linux: CI_DRM_4049 -> Patchwork_8679
CI_DRM_4049: 3dbfa04d62f1f1214a03c3b2d30f987dccf50ab4 @ git://anongit.freedesktop.org/gfx-ci/linux
IGT_4426: d502f055ac4500cada758876a512ac4f14b34851 @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
Patchwork_8679: ec952dc37d185165b612080cc6f1683593c275a1 @ git://anongit.freedesktop.org/gfx-ci/linux
piglit_4426: 93b35926a150e318439d2505901288594b3548f5 @ git://anongit.freedesktop.org/piglit
== Logs ==
For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_8679/shards.html
_______________________________________________
Intel-gfx mailing list
[email protected]
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Quoted 9 lines · Mika Kuoppala
Evidence indicates that Cannonlake HWSP is not coherent as it should. Revert to using mmio access for now.
Testcase: igt/gem_ctx_switch
References: https://bugs.freedesktop.org/show_bug.cgi?id=105888Cc Chris Wilson <[email protected]>Cc Rafael Antognolli <[email protected]>Cc Rodrigo Vivi <[email protected]>Signed-off-by Mika Kuoppala <[email protected]>
Quoted 25 lines
--- drivers/gpu/drm/i915/intel_engine_cs.c | 3 +++ 1 file changed, 3 insertions(+)drivers/gpu/drm/i915/intel_engine_cs.c +3
-0@@ -475,6 +475,9 @@ static bool csb_force_mmio(struct drm_i915_private *i915)if (intel_vgpu_active (i915) && !intel_vgpu_has_hwsp_emulation (i915))return true; +if (IS_CANNONLAKE (i915)) +return true; +return false; }Signature · 6 lines
2.14.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
_______________________________________________
Intel-gfx mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/intel-gfx