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drm/i915: Adjust available RPS information through sysfs for vlv 

Valleyview has its own render power state implementation with different
capability knobs - it has no RP0,RP1,RPn but rather RPe.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67734
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: kobe.qin@intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
wifi-calibration
Chris Wilson 2013-08-26 16:18:54 +01:00 committed by Daniel Vetter
parent 521198a2e7
commit 97e4eed7dc
1 changed files with 31 additions and 5 deletions
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36
drivers/gpu/drm/i915/i915_sysfs.c
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@ -224,6 +224,18 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
return snprintf(buf, PAGE_SIZE, "%d\n", ret);
}
static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
struct device_attribute *attr, char *buf)
{
struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev);
struct drm_device *dev = minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
return snprintf(buf, PAGE_SIZE, "%d\n",
vlv_gpu_freq(dev_priv->mem_freq,
dev_priv->rps.rpe_delay));
}
static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
{
struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev);
@ -366,6 +378,7 @@ static DEVICE_ATTR(gt_cur_freq_mhz, S_IRUGO, gt_cur_freq_mhz_show, NULL);
static DEVICE_ATTR(gt_max_freq_mhz, S_IRUGO | S_IWUSR, gt_max_freq_mhz_show, gt_max_freq_mhz_store);
static DEVICE_ATTR(gt_min_freq_mhz, S_IRUGO | S_IWUSR, gt_min_freq_mhz_show, gt_min_freq_mhz_store);
static DEVICE_ATTR(vlv_rpe_freq_mhz, S_IRUGO, vlv_rpe_freq_mhz_show, NULL);
static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
@ -409,6 +422,14 @@ static const struct attribute *gen6_attrs[] = {
NULL,
};
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_vlv_rpe_freq_mhz.attr,
NULL,
};
static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
@ -492,11 +513,13 @@ void i915_setup_sysfs(struct drm_device *dev)
DRM_ERROR("l3 parity sysfs setup failed\n");
}
if (INTEL_INFO(dev)->gen >= 6) {
ret = 0;
if (IS_VALLEYVIEW(dev))
ret = sysfs_create_files(&dev->primary->kdev.kobj, vlv_attrs);
else if (INTEL_INFO(dev)->gen >= 6)
ret = sysfs_create_files(&dev->primary->kdev.kobj, gen6_attrs);
if (ret)
DRM_ERROR("gen6 sysfs setup failed\n");
}
if (ret)
DRM_ERROR("RPS sysfs setup failed\n");
ret = sysfs_create_bin_file(&dev->primary->kdev.kobj,
&error_state_attr);
@ -507,7 +530,10 @@ void i915_setup_sysfs(struct drm_device *dev)
void i915_teardown_sysfs(struct drm_device *dev)
{
sysfs_remove_bin_file(&dev->primary->kdev.kobj, &error_state_attr);
sysfs_remove_files(&dev->primary->kdev.kobj, gen6_attrs);
if (IS_VALLEYVIEW(dev))
sysfs_remove_files(&dev->primary->kdev.kobj, vlv_attrs);
else
sysfs_remove_files(&dev->primary->kdev.kobj, gen6_attrs);
device_remove_bin_file(&dev->primary->kdev, &dpf_attrs);
#ifdef CONFIG_PM
sysfs_unmerge_group(&dev->primary->kdev.kobj, &rc6_attr_group);