diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_sysfs.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index 9462081b1e60..d5e1890678f9 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -49,7 +49,7 @@ static ssize_t show_rc6_mask(struct device *kdev, struct device_attribute *attr, char *buf) { struct drm_minor *dminor = container_of(kdev, struct drm_minor, kdev); - return snprintf(buf, PAGE_SIZE, "%x", intel_enable_rc6(dminor->dev)); + return snprintf(buf, PAGE_SIZE, "%x\n", intel_enable_rc6(dminor->dev)); } static ssize_t @@ -57,7 +57,7 @@ show_rc6_ms(struct device *kdev, struct device_attribute *attr, char *buf) { struct drm_minor *dminor = container_of(kdev, struct drm_minor, kdev); u32 rc6_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6); - return snprintf(buf, PAGE_SIZE, "%u", rc6_residency); + return snprintf(buf, PAGE_SIZE, "%u\n", rc6_residency); } static ssize_t @@ -65,7 +65,7 @@ show_rc6p_ms(struct device *kdev, struct device_attribute *attr, char *buf) { struct drm_minor *dminor = container_of(kdev, struct drm_minor, kdev); u32 rc6p_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6p); - return snprintf(buf, PAGE_SIZE, "%u", rc6p_residency); + return snprintf(buf, PAGE_SIZE, "%u\n", rc6p_residency); } static ssize_t @@ -73,7 +73,7 @@ show_rc6pp_ms(struct device *kdev, struct device_attribute *attr, char *buf) { struct drm_minor *dminor = container_of(kdev, struct drm_minor, kdev); u32 rc6pp_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6pp); - return snprintf(buf, PAGE_SIZE, "%u", rc6pp_residency); + return snprintf(buf, PAGE_SIZE, "%u\n", rc6pp_residency); } static DEVICE_ATTR(rc6_enable, S_IRUGO, show_rc6_mask, NULL); @@ -215,7 +215,7 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev, ret = dev_priv->rps.cur_delay * GT_FREQUENCY_MULTIPLIER; mutex_unlock(&dev_priv->rps.hw_lock); - return snprintf(buf, PAGE_SIZE, "%d", ret); + return snprintf(buf, PAGE_SIZE, "%d\n", ret); } static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) @@ -229,7 +229,7 @@ static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute ret = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER; mutex_unlock(&dev_priv->rps.hw_lock); - return snprintf(buf, PAGE_SIZE, "%d", ret); + return snprintf(buf, PAGE_SIZE, "%d\n", ret); } static ssize_t gt_max_freq_mhz_store(struct device *kdev, @@ -239,7 +239,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, 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; - u32 val, rp_state_cap, hw_max, hw_min; + u32 val, rp_state_cap, hw_max, hw_min, non_oc_max; ssize_t ret; ret = kstrtou32(buf, 0, &val); @@ -251,7 +251,8 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, mutex_lock(&dev_priv->rps.hw_lock); rp_state_cap = I915_READ(GEN6_RP_STATE_CAP); - hw_max = (rp_state_cap & 0xff); + hw_max = dev_priv->rps.hw_max; + non_oc_max = (rp_state_cap & 0xff); hw_min = ((rp_state_cap & 0xff0000) >> 16); if (val < hw_min || val > hw_max || val < dev_priv->rps.min_delay) { @@ -259,6 +260,10 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, return -EINVAL; } + if (val > non_oc_max) + DRM_DEBUG("User requested overclocking to %d\n", + val * GT_FREQUENCY_MULTIPLIER); + if (dev_priv->rps.cur_delay > val) gen6_set_rps(dev_priv->dev, val); @@ -280,7 +285,7 @@ static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute ret = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER; mutex_unlock(&dev_priv->rps.hw_lock); - return snprintf(buf, PAGE_SIZE, "%d", ret); + return snprintf(buf, PAGE_SIZE, "%d\n", ret); } static ssize_t gt_min_freq_mhz_store(struct device *kdev, @@ -302,7 +307,7 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev, mutex_lock(&dev_priv->rps.hw_lock); rp_state_cap = I915_READ(GEN6_RP_STATE_CAP); - hw_max = (rp_state_cap & 0xff); + hw_max = dev_priv->rps.hw_max; hw_min = ((rp_state_cap & 0xff0000) >> 16); if (val < hw_min || val > hw_max || val > dev_priv->rps.max_delay) { @@ -355,7 +360,7 @@ static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr } else { BUG(); } - return snprintf(buf, PAGE_SIZE, "%d", val); + return snprintf(buf, PAGE_SIZE, "%d\n", val); } static const struct attribute *gen6_attrs[] = { |