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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-05-25 04:13:31 -0400
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-05-25 04:29:15 -0400
commitef12dab779acdb907eb4c3fa723e1c6f035ee13c (patch)
tree9e485157910e71dfc3243689b81bbb4b18e37942 /drivers/gpu/drm/i915
parent31d8d651eb646498413abe5f17acc7fa2b68b2fc (diff)
drm/i915: tune down the noise of the RP irq limit fail
We still don't understand why this fails exactly, but if fails way too often for a simple debug information. Furthermore the current ducttape should prevent the gpu from getting stuck at low frequencies. Hence tune down the dmesg noise. Note that the known failure case is that the register read returns 0 when the gpu gets confused. v2: Add comments about the known failure case. Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/intel_pm.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 00462ef96627..d0ce2a5b1d3f 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3603,8 +3603,9 @@ static void gen6_sanitize_pm(struct drm_device *dev)
3603 limits |= (dev_priv->min_delay & 0x3f) << 16; 3603 limits |= (dev_priv->min_delay & 0x3f) << 16;
3604 3604
3605 if (old != limits) { 3605 if (old != limits) {
3606 DRM_ERROR("Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS expected %08x, was %08x\n", 3606 /* Note that the known failure case is to read back 0. */
3607 limits, old); 3607 DRM_DEBUG_DRIVER("Power management discrepancy: GEN6_RP_INTERRUPT_LIMITS "
3608 "expected %08x, was %08x\n", limits, old);
3608 I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, limits); 3609 I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, limits);
3609 } 3610 }
3610 3611