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| author | Deepak S <deepak.s@linux.intel.com> | 2014-07-12 18:46:14 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-07-11 18:22:02 +0200 |
| commit | 7707df4ad6c73e005098c4b4db2f86494e9d404d (patch) | |
| tree | 9091b16aae2df958323c524934c14696a5bace55 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 3497a5620caec0ae25e3fa3b6828f1cdeac80ec0 (diff) | |
| download | op-kernel-dev-7707df4ad6c73e005098c4b4db2f86494e9d404d.zip op-kernel-dev-7707df4ad6c73e005098c4b4db2f86494e9d404d.tar.gz | |
drm/i915: Add RP1 render P state thresholds in CHV
This is useful for userspace utilities to verify and micromanaging
the increase/decrease frequncy.
v2: Use vlv_gpu_freq to get freq (Deepak)
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 58a03f8..97be125 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3803,6 +3803,16 @@ static int cherryview_rps_rpe_freq(struct drm_i915_private *dev_priv) return rpe; } +static int cherryview_rps_guar_freq(struct drm_i915_private *dev_priv) +{ + u32 val, rp1; + + val = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS); + rp1 = (val >> PUNIT_GPU_STATUS_MAX_FREQ_SHIFT) & PUNIT_GPU_STATUS_MAX_FREQ_MASK; + + return rp1; +} + static int cherryview_rps_min_freq(struct drm_i915_private *dev_priv) { u32 val, rpn; @@ -4004,6 +4014,11 @@ static void cherryview_init_gt_powersave(struct drm_device *dev) vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), dev_priv->rps.efficient_freq); + dev_priv->rps.rp1_freq = cherryview_rps_guar_freq(dev_priv); + DRM_DEBUG_DRIVER("RP1(Guar) GPU freq: %d MHz (%u)\n", + vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq), + dev_priv->rps.rp1_freq); + dev_priv->rps.min_freq = cherryview_rps_min_freq(dev_priv); DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n", vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq), |
