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drm/radeon/dpm: fill in some initial vce infrastructure

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Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-08-20 20:29:05 -04:00
committed by Christian König
parent 82f79cc54b
commit b62d628bd6
2 changed files with 20 additions and 0 deletions
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8
drivers/gpu/drm/radeon/radeon_pm.c
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@ -826,6 +826,9 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
/* no need to reprogram if nothing changed unless we are on BTC+ */
if (rdev->pm.dpm.current_ps == rdev->pm.dpm.requested_ps) {
/* vce just modifies an existing state so force a change */
if (ps->vce_active != rdev->pm.dpm.vce_active)
goto force;
if ((rdev->family < CHIP_BARTS) || (rdev->flags & RADEON_IS_IGP)) {
/* for pre-BTC and APUs if the num crtcs changed but state is the same,
* all we need to do is update the display configuration.
@ -862,16 +865,21 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev)
}
}
force:
if (radeon_dpm == 1) {
printk("switching from power state:\n");
radeon_dpm_print_power_state(rdev, rdev->pm.dpm.current_ps);
printk("switching to power state:\n");
radeon_dpm_print_power_state(rdev, rdev->pm.dpm.requested_ps);
}
mutex_lock(&rdev->ddev->struct_mutex);
down_write(&rdev->pm.mclk_lock);
mutex_lock(&rdev->ring_lock);
/* update whether vce is active */
ps->vce_active = rdev->pm.dpm.vce_active;
ret = radeon_dpm_pre_set_power_state(rdev);
if (ret)
goto done;