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drm/radeon/dpm: add support for setting UVD clock on rv6xx 

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-05-14 18:12:13 -04:00
parent 915203c187
commit 02478a102b
1 changed files with 38 additions and 0 deletions
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38
drivers/gpu/drm/radeon/rv6xx_dpm.c
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@ -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;
}