From: Chris Wilson Date: Thu, 27 Mar 2014 08:24:20 +0000 (+0000) Subject: drm/i915: Refactor gen6_set_rps X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=eb64cad1c13a22cd4f3b061720c71f35e44eec20;p=linux-beck.git drm/i915: Refactor gen6_set_rps What used to be a short-circuit now needs to adjust interrupt masking in response to user requests for changing the min/max allowed frequencies. This is currently done by a special case and early return, but the next patch adds another common action to take, so refactor the code to reduce duplication. Signed-off-by: Chris Wilson Reviewed-by:Deepak S Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index f702ac8a2f50..b6291835fb16 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3017,36 +3017,30 @@ void gen6_set_rps(struct drm_device *dev, u8 val) WARN_ON(val > dev_priv->rps.max_freq_softlimit); WARN_ON(val < dev_priv->rps.min_freq_softlimit); - if (val == dev_priv->rps.cur_freq) { - /* min/max delay may still have been modified so be sure to - * write the limits value */ - I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, - gen6_rps_limits(dev_priv, val)); + /* min/max delay may still have been modified so be sure to + * write the limits value. + */ + if (val != dev_priv->rps.cur_freq) { + gen6_set_rps_thresholds(dev_priv, val); - return; + if (IS_HASWELL(dev)) + I915_WRITE(GEN6_RPNSWREQ, + HSW_FREQUENCY(val)); + else + I915_WRITE(GEN6_RPNSWREQ, + GEN6_FREQUENCY(val) | + GEN6_OFFSET(0) | + GEN6_AGGRESSIVE_TURBO); } - gen6_set_rps_thresholds(dev_priv, val); - - if (IS_HASWELL(dev)) - I915_WRITE(GEN6_RPNSWREQ, - HSW_FREQUENCY(val)); - else - I915_WRITE(GEN6_RPNSWREQ, - GEN6_FREQUENCY(val) | - GEN6_OFFSET(0) | - GEN6_AGGRESSIVE_TURBO); - /* Make sure we continue to get interrupts * until we hit the minimum or maximum frequencies. */ - I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, - gen6_rps_limits(dev_priv, val)); + I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, gen6_rps_limits(dev_priv, val)); POSTING_READ(GEN6_RPNSWREQ); dev_priv->rps.cur_freq = val; - trace_intel_gpu_freq_change(val * 50); }