drm/v3d: Skip perfmon serialization while a global perfmon is set

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A global perfmon counts concurrent activity from every job, so no
dependency is added while one is set. Skip the accumulator for the jobs
carrying no perfmon while a global perfmon is enabled, which is every job
in the common case.

Jobs carrying their own perfmon stay tracked. The global perfmon may be
cleared before such a job runs, and the next job carrying a perfmon has
to wait for it, otherwise both are in flight at once and only one gets
programmed in the HW.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Link: https://patch.msgid.link/20260922-v3d-quick-exit-perfmon-serialize-v2-2-2a8021dc32f2@igalia.com
Signed-off-by: Maíra Canal <mcanal@igalia.com>

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Maíra Canal 2026-09-22 10:24:51 -03:00

parent 537684e232

commit 6e375de99d

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2 changed files with 10 additions and 11 deletions

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3

drivers/gpu/drm/v3d/v3d_drv.h

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18

drivers/gpu/drm/v3d/v3d_submit.c

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