From: Rob Clark <robin.clark@oss.qualcomm.com>
To: dri-devel@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
Anna Maniscalco <anna.maniscalco2000@gmail.com>,
Rob Clark <robin.clark@oss.qualcomm.com>,
Abhinav Kumar <abhinav.kumar@linux.dev>,
Akhil P Oommen <akhilpo@oss.qualcomm.com>,
David Airlie <airlied@gmail.com>,
Dmitry Baryshkov <lumag@kernel.org>,
Jessica Zhang <jesszhan0024@gmail.com>,
Konrad Dybcio <konradybcio@kernel.org>,
linux-kernel@vger.kernel.org (open list),
Marijn Suijten <marijn.suijten@somainline.org>,
Sean Paul <sean@poorly.run>, Simona Vetter <simona@ffwll.ch>
Subject: [PATCH v4 0/6] drm/msm: Decouple IFPC disable and sysprof
Date: Tue, 3 Nov 2026 15:18:39 -0800 [thread overview]
Message-ID: <20261103231850.17493-1-robin.clark@oss.qualcomm.com> (raw)
Convert IFPC-disable into it's own refcnt so that multiple threads can
request IFPC to be disabled without stomping on each other.
Extracted out of gen8 GPU state capture series[1], as other than fixing
a missing IFPC disable in debugfs state capture path, it is unrelated.
[1] https://patchwork.freedesktop.org/series/176505/
v4:
- Don't clear GMU_STATUS_OOB_PERF_SET in suspend path. Restore it in
hw_init()
- Don't require gpu->lock in a6xx_gmu_ifpc_update(), but instead warn
if needs_hw_init
- Move perfcntr resume to after hw_init()
- Link to v3: https://lore.kernel.org/all/20261103184713.29664-1-robin.clark@oss.qualcomm.com
v3:
- Rework IFPC disable harder to play nicer with hw_init(). If we
need_hw_init, simply update gmu->status mask and let hw_init()
restore the OOB request in a sequence that won't anger the fw.
- Link to v2: https://lore.kernel.org/all/20261102190010.720443-1-robin.clark@oss.qualcomm.com/
v2:
- Fix double acquire of gmu->lock
- Fix missing a8xx hw_init() path
- Link to v1: https://lore.kernel.org/all/20261101174631.23637-1-robin.clark@oss.qualcomm.com/
Rob Clark (6):
drm/msm: Hold runpm ref in set_sysprof()
drm/msm: Resume perfcntrs after hw_init
drm/msm: Rework IFPC disable
drm/msm: Add cleanup help for disabling IFPC
drm/msm/debugfs: Use cleanup.h for gpu state dump
drm/msm: Inhibit IFPC for state snapshot
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 28 ++++++++-----------
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 11 ++++----
drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 2 +-
drivers/gpu/drm/msm/adreno/a8xx_gpu.c | 5 ++--
drivers/gpu/drm/msm/adreno/adreno_device.c | 5 +---
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 1 -
drivers/gpu/drm/msm/msm_debugfs.c | 32 +++++++++-------------
drivers/gpu/drm/msm/msm_gpu.c | 5 +++-
drivers/gpu/drm/msm/msm_gpu.h | 30 +++++++++++++++++---
drivers/gpu/drm/msm/msm_perfcntr.c | 7 +----
drivers/gpu/drm/msm/msm_submitqueue.c | 19 +++++++++----
11 files changed, 78 insertions(+), 67 deletions(-)
--
2.56.0
next reply other threads:[~2026-11-03 23:19 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-03 23:18 Rob Clark [this message]
2026-11-03 23:18 ` [PATCH v4 1/6] drm/msm: Hold runpm ref in set_sysprof() Rob Clark
2026-11-03 23:18 ` [PATCH v4 2/6] drm/msm: Resume perfcntrs after hw_init Rob Clark
2026-11-03 23:18 ` [PATCH v4 3/6] drm/msm: Rework IFPC disable Rob Clark
2026-11-03 23:18 ` [PATCH v4 4/6] drm/msm: Add cleanup help for disabling IFPC Rob Clark
2026-11-03 23:18 ` [PATCH v4 5/6] drm/msm/debugfs: Use cleanup.h for gpu state dump Rob Clark
2026-11-03 23:18 ` [PATCH v4 6/6] drm/msm: Inhibit IFPC for state snapshot Rob Clark
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