drm/v3d: Create a CPU job extension to copy timestamp query to a buffer

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A CPU job is a type of job that performs operations that requires CPU
intervention. A copy timestamp query job is a job that copy the complete
or partial result of a query to a buffer. As V3D doesn't provide any
mechanism to obtain a timestamp from the GPU, it is a job that needs
CPU intervention.

So, create a user extension for the CPU job that enables the creation
of a copy timestamp query job. This user extension will allow the creation
of a CPU job that copy the results of a timestamp query to a BO with the
possibility to indicate the timestamp availability with a availability bit.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-17-mcanal@igalia.com

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Maíra Canal 2023-11-30 13:40:38 -03:00

parent 34a101e642

commit 6745f3e44a

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20

drivers/gpu/drm/v3d/v3d_drv.h

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56

drivers/gpu/drm/v3d/v3d_sched.c

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69

drivers/gpu/drm/v3d/v3d_submit.c

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45

include/uapi/drm/v3d_drm.h

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