drm/amd/pm: use pm_runtime_get_if_active for debugfs getters

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Don't wake up the GPU for reading pm values. Instead, take a runtime
powermanagement ref when trying to read it if and only if the GPU is
already awake.

This avoids spurious wake ups (eg: from applets).

We use pm_runtime_get_if_in_active because we care about "is the GPU awake?"
not about "is the GPU awake and something else prevents suspend?".

Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Pierre-Eric Pelloux-Prayer 2024-09-16 16:49:15 +02:00 • committed by Alex Deucher

parent 7e6487ab21

commit 6e796cb4a9

1 changed files with 69 additions and 69 deletions

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drivers/gpu/drm/amd/pm/amdgpu_pm.c

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