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Commit 74c4f62b authored by Deepak S's avatar Deepak S Committed by Daniel Vetter
Browse files

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: default avatarDeepak S <deepak.s@linux.intel.com>
Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent f8f2b001

drivers/gpu/drm/i915/i915_sysfs.c

+15 −3
Original line number Diff line number Diff line
@@ -461,10 +461,19 @@ static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr 
	mutex_unlock(&dev->struct_mutex);



	if (attr == &dev_attr_gt_RP0_freq_mhz) {

		if (IS_VALLEYVIEW(dev))

			val = vlv_gpu_freq(dev_priv, dev_priv->rps.rp0_freq);

		else

			val = ((rp_state_cap & 0x0000ff) >> 0) * GT_FREQUENCY_MULTIPLIER;

	} else if (attr == &dev_attr_gt_RP1_freq_mhz) {

		if (IS_VALLEYVIEW(dev))

			val = vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq);

		else

			val = ((rp_state_cap & 0x00ff00) >> 8) * GT_FREQUENCY_MULTIPLIER;

	} else if (attr == &dev_attr_gt_RPn_freq_mhz) {

		if (IS_VALLEYVIEW(dev))

			val = vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq);

		else

			val = ((rp_state_cap & 0xff0000) >> 16) * GT_FREQUENCY_MULTIPLIER;

	} else {

		BUG();
@@ -486,6 +495,9 @@ static const struct attribute *vlv_attrs[] = { 
	&dev_attr_gt_cur_freq_mhz.attr,

	&dev_attr_gt_max_freq_mhz.attr,

	&dev_attr_gt_min_freq_mhz.attr,

	&dev_attr_gt_RP0_freq_mhz.attr,

	&dev_attr_gt_RP1_freq_mhz.attr,

	&dev_attr_gt_RPn_freq_mhz.attr,

	&dev_attr_vlv_rpe_freq_mhz.attr,

	NULL,

};