diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-05-15 01:55:03 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-06-28 03:40:12 +0400 |
| commit | 915203c1878427f93e5ede56024fa9a73f1f88d1 (patch) | |
| tree | 74577c5f81f863a43364c5f69aaf7e8257e343ed /drivers/gpu/drm/radeon/rs780_dpm.c | |
| parent | 71de795c6c3e72c820b0f1b06cd997acb16d3f62 (diff) | |
| download | linux-915203c1878427f93e5ede56024fa9a73f1f88d1.tar.xz | |
drm/radeon/dpm: add support for setting UVD clock on rs780
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rs780_dpm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rs780_dpm.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index e844c737ef7a..bef832a62fee 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -542,6 +542,40 @@ static void rs780_enable_voltage_scaling(struct radeon_device *rdev, WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL); } +static void rs780_set_uvd_clock_before_set_eng_clock(struct radeon_device *rdev, + struct radeon_ps *new_ps, + struct radeon_ps *old_ps) +{ + struct igp_ps *new_state = rs780_get_ps(new_ps); + struct igp_ps *current_state = rs780_get_ps(old_ps); + + if ((new_ps->vclk == old_ps->vclk) && + (new_ps->dclk == old_ps->dclk)) + return; + + if (new_state->sclk_high >= current_state->sclk_high) + return; + + radeon_set_uvd_clocks(rdev, new_ps->vclk, new_ps->dclk); +} + +static void rs780_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev, + struct radeon_ps *new_ps, + struct radeon_ps *old_ps) +{ + struct igp_ps *new_state = rs780_get_ps(new_ps); + struct igp_ps *current_state = rs780_get_ps(old_ps); + + if ((new_ps->vclk == old_ps->vclk) && + (new_ps->dclk == old_ps->dclk)) + return; + + if (new_state->sclk_high < current_state->sclk_high) + return; + + radeon_set_uvd_clocks(rdev, new_ps->vclk, new_ps->dclk); +} + int rs780_dpm_enable(struct radeon_device *rdev) { struct igp_power_info *pi = rs780_get_pi(rdev); @@ -611,6 +645,8 @@ int rs780_dpm_set_power_state(struct radeon_device *rdev) rs780_get_pm_mode_parameters(rdev); + rs780_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps); + if (pi->voltage_control) { rs780_force_voltage_to_high(rdev); mdelay(5); @@ -626,6 +662,8 @@ int rs780_dpm_set_power_state(struct radeon_device *rdev) if (pi->voltage_control) rs780_enable_voltage_scaling(rdev, new_ps); + rs780_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps); + return 0; } |