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Commit 626ad6f3 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter
Browse files

drm/i915: Add media rc6 residency file to sysfs 



On VLV/CHV the media well rc6 residency gets reported separately
from the render well, so add another file to sysfs so that we can
report the residency to the user.

Testcase: igt/pm_rc6_residency --run-subtest media-rc6-accuracy
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDeepak S <deepak.s@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 719cd21c

drivers/gpu/drm/i915/i915_sysfs.c

+25 −0
Original line number Diff line number Diff line
@@ -127,10 +127,19 @@ show_rc6pp_ms(struct device *kdev, struct device_attribute *attr, char *buf) 
	return snprintf(buf, PAGE_SIZE, "%u\n", rc6pp_residency);

}



static ssize_t

show_media_rc6_ms(struct device *kdev, struct device_attribute *attr, char *buf)

{

	struct drm_minor *dminor = dev_get_drvdata(kdev);

	u32 rc6_residency = calc_residency(dminor->dev, VLV_GT_MEDIA_RC6);

	return snprintf(buf, PAGE_SIZE, "%u\n", rc6_residency);

}



static DEVICE_ATTR(rc6_enable, S_IRUGO, show_rc6_mask, NULL);

static DEVICE_ATTR(rc6_residency_ms, S_IRUGO, show_rc6_ms, NULL);

static DEVICE_ATTR(rc6p_residency_ms, S_IRUGO, show_rc6p_ms, NULL);

static DEVICE_ATTR(rc6pp_residency_ms, S_IRUGO, show_rc6pp_ms, NULL);

static DEVICE_ATTR(media_rc6_residency_ms, S_IRUGO, show_media_rc6_ms, NULL);



static struct attribute *rc6_attrs[] = {

	&dev_attr_rc6_enable.attr,
@@ -153,6 +162,16 @@ static struct attribute_group rc6p_attr_group = { 
	.name = power_group_name,

	.attrs =  rc6p_attrs

};



static struct attribute *media_rc6_attrs[] = {

	&dev_attr_media_rc6_residency_ms.attr,

	NULL

};



static struct attribute_group media_rc6_attr_group = {

	.name = power_group_name,

	.attrs =  media_rc6_attrs

};

#endif



static int l3_access_valid(struct drm_device *dev, loff_t offset)
@@ -606,6 +625,12 @@ void i915_setup_sysfs(struct drm_device *dev) 
		if (ret)

			DRM_ERROR("RC6p residency sysfs setup failed\n");

	}

	if (IS_VALLEYVIEW(dev)) {

		ret = sysfs_merge_group(&dev->primary->kdev->kobj,

					&media_rc6_attr_group);

		if (ret)

			DRM_ERROR("Media RC6 residency sysfs setup failed\n");

	}

#endif

	if (HAS_L3_DPF(dev)) {

		ret = device_create_bin_file(dev->primary->kdev, &dpf_attrs);