diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2009-11-30 01:08:56 +0000 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-12-01 09:42:16 -0800 |
| commit | 28cf798f5a9bd894ee90b27667b0d36b4933ae23 (patch) | |
| tree | bb294f5f20cfc3d55ed08e93d718e9897d037cfd /drivers/gpu/drm/i915 | |
| parent | 38b3037ee47fbd65a36bc7c39f60a900fbbe3b8e (diff) | |
drm/i915: Don't update the render-clock for every bo.
Only update the render-clock on transition from busy to idle and vice
versa, or else we burn a significant percentage of the cpu just rewriting
the register -- not quite as power-friendly as intended ;-)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a0f2941d7d7..267adc6fbfc 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4052,8 +4052,13 @@ void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj) if (!drm_core_check_feature(dev, DRIVER_MODESET)) return; - dev_priv->busy = true; - intel_increase_renderclock(dev, true); + if (!dev_priv->busy) { + dev_priv->busy = true; + intel_increase_renderclock(dev, true); + } else { + mod_timer(&dev_priv->idle_timer, jiffies + + msecs_to_jiffies(GPU_IDLE_TIMEOUT)); + } list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { if (!crtc->fb) |