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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-03-17 21:29:15 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-05-18 12:20:50 +0400 |
| commit | ef6e6cf56aca91c0b0db8de6e79e0874595fd260 (patch) | |
| tree | 7ea9b9f6fec371d13d9bf76d027ad3dd7273b954 /drivers/gpu | |
| parent | 2031f77ca9c17133869b265210418959a909d259 (diff) | |
| download | linux-ef6e6cf56aca91c0b0db8de6e79e0874595fd260.tar.xz | |
drm/radeon/kms: wait for gpu idle before changing power mode
set proper wait condition as noted by Rafał Miłecki.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 6dfeb9cf16ba..4ece89aa26f8 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -378,6 +378,16 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev) radeon_get_power_state(rdev, rdev->pm.planned_action); mutex_lock(&rdev->cp.mutex); + /* wait for GPU idle */ + rdev->pm.gui_idle = false; + rdev->irq.gui_idle = true; + radeon_irq_set(rdev); + wait_event_interruptible_timeout( + rdev->irq.idle_queue, rdev->pm.gui_idle, + msecs_to_jiffies(RADEON_WAIT_IDLE_TIMEOUT)); + rdev->irq.gui_idle = false; + radeon_irq_set(rdev); + if (rdev->pm.active_crtcs & (1 << 0)) { rdev->pm.req_vblank |= (1 << 0); drm_vblank_get(rdev->ddev, 0); |