Instead of returning the cached value, which is just what the kernel
requested.
Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org>
---
drivers/gpu/drm/i915/i915_sysfs.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c
b/drivers/gpu/drm/i915/i915_sysfs.c
index ca00df2..c0d7875 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -212,10 +212,13 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
int ret;
mutex_lock(&dev_priv->rps.hw_lock);
- if (IS_VALLEYVIEW(dev_priv->dev))
- ret = vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.cur_delay);
- else
+ if (IS_VALLEYVIEW(dev_priv->dev)) {
+ u32 freq;
+ valleyview_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS, &freq);
+ ret = vlv_gpu_freq(dev_priv->mem_freq, (freq >> 8) & 0xff);
+ } else {
ret = dev_priv->rps.cur_delay * GT_FREQUENCY_MULTIPLIER;
+ }
mutex_unlock(&dev_priv->rps.hw_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", ret);
--
1.7.10.4
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