[Intel-gfx] [PATCH 7/7] drm/i915: Add media rc6 residency file to sysfs

[Ville Syrjälä]

On Tue, Jan 20, 2015 at 09:50:36AM +0100, Daniel Vetter wrote:
> On Tue, Jan 20, 2015 at 08:54:58AM +0530, Deepak S wrote:
> > 
> > On Monday 19 January 2015 05:20 PM, ville.syrjala at linux.intel.com wrote:
> > >From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > >
> > >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.
> > >
> > >Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > 
> > Looks like we missed Media well completely :) and I think we need igt test to verify media residency?
> 
> Indeed, Testcase: line is missing. And unfortunately the current testcase
> is severly broken, so there's some work to be done there.

Do we have any volunteers? I have a boatload of bigger fish to fry at
the moment so can't take up another project.

> 
> I've merged all the other patches from this series.
> 
> Thanks, Daniel
> > 
> > Reviewed-by: Deepak S<deepak.s at linux.intel.com>
> > 
> > >---
> > >  drivers/gpu/drm/i915/i915_sysfs.c | 25 +++++++++++++++++++++++++
> > >  1 file changed, 25 insertions(+)
> > >
> > >diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
> > >index 1ca944b..db14d3e 100644
> > >--- a/drivers/gpu/drm/i915/i915_sysfs.c
> > >+++ b/drivers/gpu/drm/i915/i915_sysfs.c
> > >@@ -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)
> > >@@ -612,6 +631,12 @@ 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);
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel OTC