From 177006a10b33c9bd729cd60be0a37b41a23e4df3 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 2 May 2013 10:48:07 -0700 Subject: [PATCH] drm/i915: read current freq from Punit on VLV Instead of returning the cached value, which is just what the kernel requested. Reviewed-by: Kenneth Graunke Signed-off-by: Jesse Barnes Signed-off-by: Daniel Vetter --- 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 ca00df2de07b..c0d7875b475c 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); -- 2.30.2