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drm/radeon/dpm: add new callback for powergating UVD (v4)

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Starting on CIK, multi-media blocks like UVD no longer
have special power state.  Rather they have their own
DPM implementation which adjusts their clocks dynamically
when active.  When they are not active, the blocks are
powergated to save power.

v2: add missing pm locks
v3: rebase on uvd state selection rework
v4: fix inverted logic typo noticed by Christian

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-07-31 18:13:23 -04:00
parent 2b4c8022fa
commit 9e9d976205
2 changed files with 27 additions and 18 deletions
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43
drivers/gpu/drm/radeon/radeon_pm.c
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@@ -886,28 +886,35 @@ void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable)
{
enum radeon_pm_state_type dpm_state;
if (enable) {
if (rdev->asic->dpm.powergate_uvd) {
mutex_lock(&rdev->pm.mutex);
rdev->pm.dpm.uvd_active = true;
if ((rdev->pm.dpm.sd == 1) && (rdev->pm.dpm.hd == 0))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_SD;
else if ((rdev->pm.dpm.sd == 2) && (rdev->pm.dpm.hd == 0))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 1))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 2))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD2;
else
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD;
rdev->pm.dpm.state = dpm_state;
/* enable/disable UVD */
radeon_dpm_powergate_uvd(rdev, !enable);
mutex_unlock(&rdev->pm.mutex);
} else {
mutex_lock(&rdev->pm.mutex);
rdev->pm.dpm.uvd_active = false;
mutex_unlock(&rdev->pm.mutex);
}
if (enable) {
mutex_lock(&rdev->pm.mutex);
rdev->pm.dpm.uvd_active = true;
if ((rdev->pm.dpm.sd == 1) && (rdev->pm.dpm.hd == 0))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_SD;
else if ((rdev->pm.dpm.sd == 2) && (rdev->pm.dpm.hd == 0))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 1))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 2))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD2;
else
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD;
rdev->pm.dpm.state = dpm_state;
mutex_unlock(&rdev->pm.mutex);
} else {
mutex_lock(&rdev->pm.mutex);
rdev->pm.dpm.uvd_active = false;
mutex_unlock(&rdev->pm.mutex);
}
radeon_pm_compute_clocks(rdev);
radeon_pm_compute_clocks(rdev);
}
}
static void radeon_pm_suspend_old(struct radeon_device *rdev)