drm/i915: Add RP0/RP1/RPn render P state thresholds in VLV sysfs
This is useful for userspace utilities to verify and micromanaging the increase/decrease frequncy. Signed-off-by: Deepak S <deepak.s@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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@ -461,11 +461,20 @@ static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr
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mutex_unlock(&dev->struct_mutex);
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if (attr == &dev_attr_gt_RP0_freq_mhz) {
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val = ((rp_state_cap & 0x0000ff) >> 0) * GT_FREQUENCY_MULTIPLIER;
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if (IS_VALLEYVIEW(dev))
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val = vlv_gpu_freq(dev_priv, dev_priv->rps.rp0_freq);
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else
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val = ((rp_state_cap & 0x0000ff) >> 0) * GT_FREQUENCY_MULTIPLIER;
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} else if (attr == &dev_attr_gt_RP1_freq_mhz) {
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val = ((rp_state_cap & 0x00ff00) >> 8) * GT_FREQUENCY_MULTIPLIER;
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if (IS_VALLEYVIEW(dev))
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val = vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq);
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else
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val = ((rp_state_cap & 0x00ff00) >> 8) * GT_FREQUENCY_MULTIPLIER;
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} else if (attr == &dev_attr_gt_RPn_freq_mhz) {
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val = ((rp_state_cap & 0xff0000) >> 16) * GT_FREQUENCY_MULTIPLIER;
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if (IS_VALLEYVIEW(dev))
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val = vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq);
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else
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val = ((rp_state_cap & 0xff0000) >> 16) * GT_FREQUENCY_MULTIPLIER;
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} else {
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BUG();
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}
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@ -486,6 +495,9 @@ static const struct attribute *vlv_attrs[] = {
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&dev_attr_gt_cur_freq_mhz.attr,
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&dev_attr_gt_max_freq_mhz.attr,
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&dev_attr_gt_min_freq_mhz.attr,
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&dev_attr_gt_RP0_freq_mhz.attr,
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&dev_attr_gt_RP1_freq_mhz.attr,
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&dev_attr_gt_RPn_freq_mhz.attr,
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&dev_attr_vlv_rpe_freq_mhz.attr,
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NULL,
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};
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