From e3fef09dda9ebf113a9a861260eff6f223808043 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 12 Nov 2012 14:18:02 +0100 Subject: [PATCH] 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 Cc: Guenter Roeck Cc: Andrew Morton Cc: Daniel Vetter Cc: David Airlie Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_pm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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)); -- 2.7.4