From 02478a102be592a8b48be03d62f0fdddb51ab786 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 14 May 2013 18:12:13 -0400 Subject: [PATCH] drm/radeon/dpm: add support for setting UVD clock on rv6xx Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/rv6xx_dpm.c | 38 ++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/gpu/drm/radeon/rv6xx_dpm.c b/drivers/gpu/drm/radeon/rv6xx_dpm.c index 120a63261c1a..0e8b7d9b954b 100644 --- a/drivers/gpu/drm/radeon/rv6xx_dpm.c +++ b/drivers/gpu/drm/radeon/rv6xx_dpm.c @@ -1507,6 +1507,40 @@ static void rv6xx_enable_dynamic_pcie_gen2(struct radeon_device *rdev, } } +static void rv6xx_set_uvd_clock_before_set_eng_clock(struct radeon_device *rdev, + struct radeon_ps *new_ps, + struct radeon_ps *old_ps) +{ + struct rv6xx_ps *new_state = rv6xx_get_ps(new_ps); + struct rv6xx_ps *current_state = rv6xx_get_ps(old_ps); + + if ((new_ps->vclk == old_ps->vclk) && + (new_ps->dclk == old_ps->dclk)) + return; + + if (new_state->high.sclk >= current_state->high.sclk) + return; + + radeon_set_uvd_clocks(rdev, new_ps->vclk, new_ps->dclk); +} + +static void rv6xx_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev, + struct radeon_ps *new_ps, + struct radeon_ps *old_ps) +{ + struct rv6xx_ps *new_state = rv6xx_get_ps(new_ps); + struct rv6xx_ps *current_state = rv6xx_get_ps(old_ps); + + if ((new_ps->vclk == old_ps->vclk) && + (new_ps->dclk == old_ps->dclk)) + return; + + if (new_state->high.sclk < current_state->high.sclk) + return; + + radeon_set_uvd_clocks(rdev, new_ps->vclk, new_ps->dclk); +} + int rv6xx_dpm_enable(struct radeon_device *rdev) { struct rv6xx_power_info *pi = rv6xx_get_pi(rdev); @@ -1635,6 +1669,8 @@ int rv6xx_dpm_set_power_state(struct radeon_device *rdev) struct radeon_ps *old_ps = rdev->pm.dpm.current_ps; int ret; + rv6xx_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps); + rv6xx_clear_vc(rdev); r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true); r600_set_at(rdev, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF); @@ -1717,6 +1753,8 @@ int rv6xx_dpm_set_power_state(struct radeon_device *rdev) rv6xx_program_vc(rdev); rv6xx_program_at(rdev); + rv6xx_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps); + return 0; } -- 2.20.1