diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_sysfs.c | 49 |
1 files changed, 29 insertions, 20 deletions
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index cef38fd320a7..33bcae314bf8 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -40,10 +40,13 @@ static u32 calc_residency(struct drm_device *dev, const u32 reg) struct drm_i915_private *dev_priv = dev->dev_private; u64 raw_time; /* 32b value may overflow during fixed point math */ u64 units = 128ULL, div = 100000ULL, bias = 100ULL; + u32 ret; if (!intel_enable_rc6(dev)) return 0; + intel_runtime_pm_get(dev_priv); + /* On VLV, residency time is in CZ units rather than 1.28us */ if (IS_VALLEYVIEW(dev)) { u32 clkctl2; @@ -52,7 +55,8 @@ static u32 calc_residency(struct drm_device *dev, const u32 reg) CLK_CTL2_CZCOUNT_30NS_SHIFT; if (!clkctl2) { WARN(!clkctl2, "bogus CZ count value"); - return 0; + ret = 0; + goto out; } units = DIV_ROUND_UP_ULL(30ULL * bias, (u64)clkctl2); if (I915_READ(VLV_COUNTER_CONTROL) & VLV_COUNT_RANGE_HIGH) @@ -62,7 +66,11 @@ static u32 calc_residency(struct drm_device *dev, const u32 reg) } raw_time = I915_READ(reg) * units; - return DIV_ROUND_UP_ULL(raw_time, div); + ret = DIV_ROUND_UP_ULL(raw_time, div); + +out: + intel_runtime_pm_put(dev_priv); + return ret; } static ssize_t @@ -183,13 +191,13 @@ i915_l3_write(struct file *filp, struct kobject *kobj, int slice = (int)(uintptr_t)attr->private; int ret; + if (!HAS_HW_CONTEXTS(drm_dev)) + return -ENXIO; + ret = l3_access_valid(drm_dev, offset); if (ret) return ret; - if (dev_priv->hw_contexts_disabled) - return -ENXIO; - ret = i915_mutex_lock_interruptible(drm_dev); if (ret) return ret; @@ -259,7 +267,7 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev, if (IS_VALLEYVIEW(dev_priv->dev)) { u32 freq; freq = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS); - ret = vlv_gpu_freq(dev_priv->mem_freq, (freq >> 8) & 0xff); + ret = vlv_gpu_freq(dev_priv, (freq >> 8) & 0xff); } else { ret = dev_priv->rps.cur_delay * GT_FREQUENCY_MULTIPLIER; } @@ -276,8 +284,7 @@ static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev, 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)); + vlv_gpu_freq(dev_priv, dev_priv->rps.rpe_delay)); } static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) @@ -291,7 +298,7 @@ static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev_priv->dev)) - ret = vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.max_delay); + ret = vlv_gpu_freq(dev_priv, dev_priv->rps.max_delay); else ret = dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER; mutex_unlock(&dev_priv->rps.hw_lock); @@ -318,7 +325,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev_priv->dev)) { - val = vlv_freq_opcode(dev_priv->mem_freq, val); + val = vlv_freq_opcode(dev_priv, val); hw_max = valleyview_rps_max_freq(dev_priv); hw_min = valleyview_rps_min_freq(dev_priv); @@ -342,15 +349,15 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, DRM_DEBUG("User requested overclocking to %d\n", val * GT_FREQUENCY_MULTIPLIER); + dev_priv->rps.max_delay = val; + if (dev_priv->rps.cur_delay > val) { - if (IS_VALLEYVIEW(dev_priv->dev)) - valleyview_set_rps(dev_priv->dev, val); + if (IS_VALLEYVIEW(dev)) + valleyview_set_rps(dev, val); else - gen6_set_rps(dev_priv->dev, val); + gen6_set_rps(dev, val); } - dev_priv->rps.max_delay = val; - mutex_unlock(&dev_priv->rps.hw_lock); return count; @@ -367,7 +374,7 @@ static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev_priv->dev)) - ret = vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.min_delay); + ret = vlv_gpu_freq(dev_priv, dev_priv->rps.min_delay); else ret = dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER; mutex_unlock(&dev_priv->rps.hw_lock); @@ -394,7 +401,7 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev, mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev)) { - val = vlv_freq_opcode(dev_priv->mem_freq, val); + val = vlv_freq_opcode(dev_priv, val); hw_max = valleyview_rps_max_freq(dev_priv); hw_min = valleyview_rps_min_freq(dev_priv); @@ -411,15 +418,15 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev, return -EINVAL; } + dev_priv->rps.min_delay = val; + if (dev_priv->rps.cur_delay < val) { if (IS_VALLEYVIEW(dev)) valleyview_set_rps(dev, val); else - gen6_set_rps(dev_priv->dev, val); + gen6_set_rps(dev, val); } - dev_priv->rps.min_delay = val; - mutex_unlock(&dev_priv->rps.hw_lock); return count; @@ -449,7 +456,9 @@ static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr ret = mutex_lock_interruptible(&dev->struct_mutex); if (ret) return ret; + intel_runtime_pm_get(dev_priv); rp_state_cap = I915_READ(GEN6_RP_STATE_CAP); + intel_runtime_pm_put(dev_priv); mutex_unlock(&dev->struct_mutex); if (attr == &dev_attr_gt_RP0_freq_mhz) { |