kernel_samsung_a53x/drivers/gpu
Lucas Stach e46e34144f drm/etnaviv: hold GPU lock across perfmon sampling
[ Upstream commit 37dc4737447a7667f8e9ec790dac251da057eb27 ]

The perfmon sampling mutates shared GPU state (e.g. VIVS_HI_CLOCK_CONTROL
to select the pipe for the perf counter reads). To avoid clashing with
other functions mutating the same state (e.g. etnaviv_gpu_update_clock)
the perfmon sampling needs to hold the GPU lock.

Fixes: 68dc0b295dcb ("drm/etnaviv: use 'sync points' for performance monitor requests")
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-17 13:24:06 +01:00
..
arm Revert "gpu/exynos: Make 'gpu_mm_min_clock' readonly too" 2024-11-24 19:16:08 +01:00
drm drm/etnaviv: hold GPU lock across perfmon sampling 2024-12-17 13:24:06 +01:00
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