[PATCH 0/2] Two small perfcnt fixes for Panfrost

From: Adrián Larumbe

Date: Thu Oct 15 2026 - 14:24:06 EST


To: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
To: Rob Herring <robh@xxxxxxxxxx>
To: Steven Price <steven.price@xxxxxxx>
To: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
To: Maxime Ripard <mripard@xxxxxxxxxx>
To: Thomas Zimmermann <tzimmermann@xxxxxxx>
To: David Airlie <airlied@xxxxxxxxx>
To: Simona Vetter <simona@xxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Adrián Larumbe <adrian.larumbe@xxxxxxxxxxxxx>

First fix makes sure cycle counter is enabled when starting a new
session. This is required by some profiling frameworks like
Perfetto. Second fix deals with a recently-introduced race condition.

---
Adrián Larumbe (1):
drm/panfrost: Fix race when restoring reset state in perfcnt

Boris Brezillon (1):
drm/panfrost: Enable cycle counting when perfcnt is enabled

drivers/gpu/drm/panfrost/panfrost_perfcnt.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
---
base-commit: 9944dd07f3cf7b6c19d65c2585147887ca06677c
change-id: 20261014-panfrost-reset-races-fixes-6f5f2459dc9b

Best regards,
--
Adrián Larumbe <adrian.larumbe@xxxxxxxxxxxxx>