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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-07-24 12:12:49 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-08-30 16:29:59 -0400 |
| commit | ce3537d57196dfc7094755532e1ffc1af133ca5f (patch) | |
| tree | 359175733656379b334b532f6410c700ccda912d /drivers/gpu/drm/radeon/radeon_pm.c | |
| parent | 85a129ca8db375ce046faa34eb1387ea4247e268 (diff) | |
| download | linux-ce3537d57196dfc7094755532e1ffc1af133ca5f.tar.bz2 | |
drm/radeon/dpm: use multiple UVD power states (v3)
Use the UVD handle information to determine which
which power states to select when using UVD. For
example, decoding a single SD stream requires much
lower clocks than multiple HD streams.
v2: switch to a cleaner dpm/uvd interface
v3: change the uvd power state while streams
are active if need be
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index c557850cd345..59d7a0c86589 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -729,6 +729,8 @@ restart_search: /* use a fallback state if we didn't match */ switch (dpm_state) { case POWER_STATE_TYPE_INTERNAL_UVD_SD: + dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD; + goto restart_search; case POWER_STATE_TYPE_INTERNAL_UVD_HD: case POWER_STATE_TYPE_INTERNAL_UVD_HD2: case POWER_STATE_TYPE_INTERNAL_UVD_MVC: @@ -884,6 +886,34 @@ void radeon_dpm_enable_power_state(struct radeon_device *rdev, radeon_pm_compute_clocks(rdev); } +void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable) +{ + enum radeon_pm_state_type dpm_state; + + 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); +} + static void radeon_pm_suspend_old(struct radeon_device *rdev) { mutex_lock(&rdev->pm.mutex); |