drm/i915: remove rps local variables

With the renamed RPS struct members, it's easier to skip the local
variables which no longer clarify anything, and if anything just make
the code harder to read.

The real motivation for this patch is actually the next patch, which
attempts to consolidate some of the functionality.

Cc: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index 49554d9a6b71249af7b7eec1dd9602dfbd5965c5..9c57029f6f4b4b9ba6b63ce2493eac4942f5eb59 100644 (file)
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -313,7 +313,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
        struct drm_minor *minor = dev_to_drm_minor(kdev);
        struct drm_device *dev = minor->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
-       u32 val, hw_max, hw_min, non_oc_max;
+       u32 val;
        ssize_t ret;
 
        ret = kstrtou32(buf, 0, &val);
@@ -324,26 +324,19 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
 
        mutex_lock(&dev_priv->rps.hw_lock);
 
-       if (IS_VALLEYVIEW(dev_priv->dev)) {
+       if (IS_VALLEYVIEW(dev_priv->dev))
                val = vlv_freq_opcode(dev_priv, val);
-
-               non_oc_max = hw_max = dev_priv->rps.max_freq;
-               hw_min = dev_priv->rps.min_freq;
-       } else {
+       else
                val /= GT_FREQUENCY_MULTIPLIER;
 
-               hw_max = dev_priv->rps.max_freq;
-               non_oc_max = dev_priv->rps.rp0_freq;
-               hw_min = dev_priv->rps.min_freq;
-       }
-
-       if (val < hw_min || val > hw_max ||
+       if (val < dev_priv->rps.min_freq ||
+           val > dev_priv->rps.max_freq ||
            val < dev_priv->rps.min_freq_softlimit) {
                mutex_unlock(&dev_priv->rps.hw_lock);
                return -EINVAL;
        }
 
-       if (val > non_oc_max)
+       if (val > dev_priv->rps.rp0_freq)
                DRM_DEBUG("User requested overclocking to %d\n",
                          val * GT_FREQUENCY_MULTIPLIER);
 
@@ -392,7 +385,7 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
        struct drm_minor *minor = dev_to_drm_minor(kdev);
        struct drm_device *dev = minor->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
-       u32 val, hw_max, hw_min;
+       u32 val;
        ssize_t ret;
 
        ret = kstrtou32(buf, 0, &val);
@@ -403,19 +396,14 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
 
        mutex_lock(&dev_priv->rps.hw_lock);
 
-       if (IS_VALLEYVIEW(dev)) {
+       if (IS_VALLEYVIEW(dev))
                val = vlv_freq_opcode(dev_priv, val);
-
-               hw_max = dev_priv->rps.max_freq;
-               hw_min = dev_priv->rps.min_freq;
-       } else {
+       else
                val /= GT_FREQUENCY_MULTIPLIER;
 
-               hw_max = dev_priv->rps.max_freq;
-               hw_min = dev_priv->rps.min_freq;
-       }
-
-       if (val < hw_min || val > hw_max || val > dev_priv->rps.max_freq_softlimit) {
+       if (val < dev_priv->rps.min_freq ||
+           val > dev_priv->rps.max_freq ||
+           val > dev_priv->rps.max_freq_softlimit) {
                mutex_unlock(&dev_priv->rps.hw_lock);
                return -EINVAL;
        }

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 3db7c40cc9aeeac867a7e272a65ebc6c63fb1d05..fd68f93671bba7d02fb95eb116156b97f713edcf 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3324,7 +3324,7 @@ static void gen6_enable_rps(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_ring_buffer *ring;
-       u32 rp_state_cap, hw_max, hw_min;
+       u32 rp_state_cap;
        u32 gt_perf_status;
        u32 rc6vids, pcu_mbox = 0, rc6_mask = 0;
        u32 gtfifodbg;
@@ -3353,21 +3353,22 @@ static void gen6_enable_rps(struct drm_device *dev)
        gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
 
        /* All of these values are in units of 50MHz */
-       dev_priv->rps.cur_freq = 0;
-       /* hw_max = RP0 until we check for overclocking */
-       dev_priv->rps.max_freq = hw_max = rp_state_cap & 0xff;
+       dev_priv->rps.cur_freq          = 0;
        /* static values from HW: RP0 < RPe < RP1 < RPn (min_freq) */
-       dev_priv->rps.rp1_freq = (rp_state_cap >>  8) & 0xff;
-       dev_priv->rps.rp0_freq = (rp_state_cap >>  0) & 0xff;
-       dev_priv->rps.efficient_freq = dev_priv->rps.rp1_freq;
-       dev_priv->rps.min_freq = hw_min = (rp_state_cap >> 16) & 0xff;
+       dev_priv->rps.rp1_freq          = (rp_state_cap >>  8) & 0xff;
+       dev_priv->rps.rp0_freq          = (rp_state_cap >>  0) & 0xff;
+       dev_priv->rps.min_freq          = (rp_state_cap >> 16) & 0xff;
+       /* XXX: only BYT has a special efficient freq */
+       dev_priv->rps.efficient_freq    = dev_priv->rps.rp1_freq;
+       /* hw_max = RP0 until we check for overclocking */
+       dev_priv->rps.max_freq          = dev_priv->rps.rp0_freq;
 
        /* Preserve min/max settings in case of re-init */
        if (dev_priv->rps.max_freq_softlimit == 0)
-               dev_priv->rps.max_freq_softlimit = hw_max;
+               dev_priv->rps.max_freq_softlimit = dev_priv->rps.max_freq;
 
        if (dev_priv->rps.min_freq_softlimit == 0)
-               dev_priv->rps.min_freq_softlimit = hw_min;
+               dev_priv->rps.min_freq_softlimit = dev_priv->rps.min_freq;
 
        /* disable the counters and set deterministic thresholds */
        I915_WRITE(GEN6_RC_CONTROL, 0);
@@ -3597,7 +3598,7 @@ static void valleyview_enable_rps(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_ring_buffer *ring;
-       u32 gtfifodbg, val, hw_max, hw_min, rc6_mode = 0;
+       u32 gtfifodbg, val, rc6_mode = 0;
        int i;
 
        WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
@@ -3657,27 +3658,28 @@ static void valleyview_enable_rps(struct drm_device *dev)
                         vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq),
                         dev_priv->rps.cur_freq);
 
-       dev_priv->rps.max_freq = hw_max = valleyview_rps_max_freq(dev_priv);
+       dev_priv->rps.max_freq = valleyview_rps_max_freq(dev_priv);
+       dev_priv->rps.rp0_freq  = dev_priv->rps.max_freq;
        DRM_DEBUG_DRIVER("max GPU freq: %d MHz (%u)\n",
-                        vlv_gpu_freq(dev_priv, hw_max),
-                        hw_max);
+                        vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq),
+                        dev_priv->rps.max_freq);
 
        dev_priv->rps.efficient_freq = valleyview_rps_rpe_freq(dev_priv);
        DRM_DEBUG_DRIVER("RPe GPU freq: %d MHz (%u)\n",
                         vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
                         dev_priv->rps.efficient_freq);
 
-       hw_min = valleyview_rps_min_freq(dev_priv);
+       dev_priv->rps.min_freq = valleyview_rps_min_freq(dev_priv);
        DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n",
-                        vlv_gpu_freq(dev_priv, hw_min),
-                        hw_min);
+                        vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq),
+                        dev_priv->rps.min_freq);
 
        /* Preserve min/max settings in case of re-init */
        if (dev_priv->rps.max_freq_softlimit == 0)
-               dev_priv->rps.max_freq_softlimit = hw_max;
+               dev_priv->rps.max_freq_softlimit = dev_priv->rps.max_freq;
 
        if (dev_priv->rps.min_freq_softlimit == 0)
-               dev_priv->rps.min_freq_softlimit = hw_min;
+               dev_priv->rps.min_freq_softlimit = dev_priv->rps.min_freq;
 
        DRM_DEBUG_DRIVER("setting GPU freq to %d MHz (%u)\n",
                         vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),