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linux/Documentation/ABI/testing/sysfs-driver-panthor-profiling

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drm/panthor: add sysfs knob for enabling job profiling This commit introduces a DRM device sysfs attribute that lets UM control the job accounting status in the device. The knob variable had been brought in as part of a previous commit, but now we're able to fix it manually. As sysfs files are part of a driver's uAPI, describe its legitimate input values and output format in a documentation file. Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com> Reviewed-by: Steven Price <steven.price@arm.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240923230912.2207320-6-adrian.larumbe@collabora.com
2024-09-24 00:06:25 +01:00
What: /sys/bus/platform/drivers/panthor/.../profiling
Date: September 2024
KernelVersion: 6.11.0
Contact: Adrian Larumbe <adrian.larumbe@collabora.com>
Description:
Bitmask to enable drm fdinfo's job profiling measurements.
Valid values are:
0: Don't enable fdinfo job profiling sources.
1: Enable GPU cycle measurements for running jobs.
2: Enable GPU timestamp sampling for running jobs.
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