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authorJesse Barnes <jbarnes@virtuousgeek.org>2013-09-26 17:55:57 -0700
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-10-01 07:45:43 +0200
commit49798eb2fe7240900d0a22a4e8d2b8e2f2ea6684 (patch)
treec695f5127d4f4bceadf26eef23d1a14843f8c6e0 /drivers/gpu/drm/i915/intel_pm.c
parent5de56df5c708f5d0d1bb2c156385a6740436affa (diff)
drm/i915/vlv: use lower precision RC6 counter
And add some reg defines while we're at it. Since the units of the RC6 residency counter are actually in CZ clocks, we want to just use the high bits or we'll overflow too frequently. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> 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.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 2ac1c2fd58b..102fc498a12 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3837,7 +3837,10 @@ static void valleyview_enable_rps(struct drm_device *dev)
I915_WRITE(GEN6_RC6_THRESHOLD, 0xc350);
/* allows RC6 residency counter to work */
- I915_WRITE(0x138104, _MASKED_BIT_ENABLE(0x3));
+ I915_WRITE(VLV_COUNTER_CONTROL,
+ _MASKED_BIT_ENABLE(VLV_COUNT_RANGE_HIGH |
+ VLV_MEDIA_RC6_COUNT_EN |
+ VLV_RENDER_RC6_COUNT_EN));
if (intel_enable_rc6(dev) & INTEL_RC6_ENABLE)
rc6_mode = GEN7_RC_CTL_TO_MODE;
I915_WRITE(GEN6_RC_CONTROL, rc6_mode);