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Yang Wang 9aa786c15b drm/amd/pm: fix torn gpu metrics reads ... [ Upstream commit 048f4541b7 ] amdgpu_dpm_get_gpu_metrics() returns a pointer to the shared metrics cache after dropping adev->pm.mutex. The sysfs path then copies from that pointer. Another reader can refresh the cache in place during the copy and return a snapshot containing data from two generations. Pass caller-provided storage through the DPM interface and copy the metrics while the mutex is held. This keeps the cache pointer private and makes each sysfs read observe one complete sample. Fixes: 25c933b1c4 ("drm/amd/powerplay: add new sysfs interface for retrieving gpu metrics(V2)") Signed-off-by: Yang Wang <kevinyang.wang@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 862333bb48) Cc: stable@vger.kernel.org [ applied the fix at the caller `amdgpu_get_gpu_metrics()` in amdgpu_pm.c since the `amdgpu_dpm_get_gpu_metrics()` wrapper is a macro on this tree ] Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2026-08-23 14:17:30 +02:00
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drm	drm/amd/pm: fix torn gpu metrics reads	2026-08-23 14:17:30 +02:00
host1x	gpu: host1x: Fix device reference leak in host1x_device_parse_dt() error path	2026-07-24 15:51:47 +02:00
ipu-v3	gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id()	2023-03-10 09:39:20 +01:00
trace	gpu/trace: add a gpu total memory usage tracepoint	2020-03-03 17:52:41 -05:00
vga	vgaarb: don't pass a cookie to vga_client_register	2021-07-21 10:29:10 +02:00
Makefile	gpu/trace: add a gpu total memory usage tracepoint	2020-03-03 17:52:41 -05:00