diff options
| author | Jean Delvare <khali@linux-fr.org> | 2012-11-12 13:18:02 (GMT) |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-11-21 16:44:59 (GMT) |
| commit | e3fef09dda9ebf113a9a861260eff6f223808043 (patch) | |
| tree | c145ff192b00236d12559eaab4e720a666ded70d /drivers/gpu | |
| parent | bf6f036848ab2151c2498f11cb7d31a52a95dd5c (diff) | |
| download | linux-fsl-qoriq-e3fef09dda9ebf113a9a861260eff6f223808043.tar.xz | |
drm/i915: Optimize DIV_ROUND_CLOSEST call
DIV_ROUND_CLOSEST is faster if the compiler knows it will only be
dealing with unsigned dividends. This optimization rips 32 bytes of
binary code on x86_64.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 0cbc0e6..0edb549 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2552,7 +2552,8 @@ static void gen6_update_ring_freq(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; int min_freq = 15; - int gpu_freq, ia_freq, max_ia_freq; + int gpu_freq; + unsigned int ia_freq, max_ia_freq; int scaling_factor = 180; WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock)); |