drm/msm/gpu: Respect PM QoS constraints

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Re-work the boost and idle clamping to use PM QoS requests instead, so
they get aggreggated with other requests (such as cooling device).

This does have the minor side-effect that devfreq sysfs min_freq/
max_freq files now reflect the boost and idle clamping, as they show
(despite what they are documented to show) the aggregated min/max freq.
Fixing that in devfreq does not look straightforward after considering
that OPPs can be dynamically added/removed.  However writes to the
sysfs files still behave as expected.

v2: Use 64b math to avoid potential 32b overflow

Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20211120200103.1051459-3-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>

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This commit is contained in:

Rob Clark 2021-11-20 12:01:03 -08:00

parent 2a1ac5ba90

commit 7c0ffcd40b

2 changed files with 71 additions and 51 deletions

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35

drivers/gpu/drm/msm/msm_gpu.h

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89

drivers/gpu/drm/msm/msm_gpu_devfreq.c

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