[PATCH 0/4] fixes for Adreno A5Xx preemption

From: Vladimir Lypak
Date: Thu Jul 11 2024 - 06:02:57 EST


There are several issues with preemption on Adreno A5XX GPUs which
render system unusable if more than one priority level is used. Those
issues include persistent GPU faults and hangs, full UI lockups with
idling GPU.

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Vladimir Lypak (4):
drm/msm/a5xx: disable preemption in submits by default
drm/msm/a5xx: properly clear preemption records on resume
drm/msm/a5xx: fix races in preemption evaluation stage
drm/msm/a5xx: workaround early ring-buffer emptiness check

drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 18 ++++++++++----
drivers/gpu/drm/msm/adreno/a5xx_gpu.h | 12 ++++++---
drivers/gpu/drm/msm/adreno/a5xx_preempt.c | 30 ++++++++++++++++++++---
3 files changed, 47 insertions(+), 13 deletions(-)
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base-commit: 523b23f0bee3014a7a752c9bb9f5c54f0eddae88
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2.45.2