drm/panfrost: Simplify devfreq utilisation tracking

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Instead of tracking per-slot utilisation track a single value for the
entire GPU. Ultimately it doesn't matter if the GPU is busy with only
vertex or a combination of vertex and fragment processing - if it's busy
then it's busy and devfreq should be scaling appropriately.

This also makes way for being able to submit multiple jobs per slot
which requires more values than the original boolean per slot.

Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191025134143.14324-3-steven.price@arm.com

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Steven Price 2019-10-25 14:41:43 +01:00 • committed by Rob Herring

parent 221bc77914

commit 9e62b885f7

4 changed files with 38 additions and 56 deletions

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66

drivers/gpu/drm/panfrost/panfrost_devfreq.c

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3

drivers/gpu/drm/panfrost/panfrost_devfreq.h

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12

drivers/gpu/drm/panfrost/panfrost_device.h

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15

drivers/gpu/drm/panfrost/panfrost_job.c

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