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drm/radeon/dpm: enable dynamic vce state switching v2

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enable vce states when vce is active.  When vce is active,
it adjusts the currently selected state (performance, battery,
uvd, etc.)

v2: add code comments

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Alex Deucher 2013-08-23 11:56:26 -04:00 • committed by Christian König
parent 4233290519
commit 03afe6f648
4 changed files with 85 additions and 0 deletions
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17
drivers/gpu/drm/radeon/radeon_pm.c
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@ -968,6 +968,23 @@ void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable)
}
}
void radeon_dpm_enable_vce(struct radeon_device *rdev, bool enable)
{
if (enable) {
mutex_lock(&rdev->pm.mutex);
rdev->pm.dpm.vce_active = true;
/* XXX select vce level based on ring/task */
rdev->pm.dpm.vce_level = RADEON_VCE_LEVEL_AC_ALL;
mutex_unlock(&rdev->pm.mutex);
} else {
mutex_lock(&rdev->pm.mutex);
rdev->pm.dpm.vce_active = false;
mutex_unlock(&rdev->pm.mutex);
}
radeon_pm_compute_clocks(rdev);
}
static void radeon_pm_suspend_old(struct radeon_device *rdev)
{
mutex_lock(&rdev->pm.mutex);