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authorJesse Barnes <jbarnes@virtuousgeek.org>2009-12-03 09:52:43 -0800
committerEric Anholt <eric@anholt.net>2009-12-07 12:11:52 -0800
commit85364905f9ae12d19cb34099257d493e5d9a0c4e (patch)
tree21355931ce3f3b2ddb7c07e0d4207179d5251989
parent22fd0fab3b512b5fcb4fd0b0668deeaa701511f9 (diff)
drm/i915: warn if Pineview CxSR can't be enabled
If we don't detect a supported memory configuration, we can't enable CxSR. Warn the user in this case so they can file a bug.
-rw-r--r--drivers/gpu/drm/i915/intel_display.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 22dcd085163..6b9dd672dd5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4740,6 +4740,13 @@ void intel_modeset_init(struct drm_device *dev)
(unsigned long)dev);
intel_setup_overlay(dev);
+
+ if (IS_IGD(dev) && !intel_get_cxsr_latency(IS_IGDG(dev),
+ dev_priv->fsb_freq,
+ dev_priv->mem_freq))
+ DRM_INFO("failed to find known CxSR latency "
+ "(found fsb freq %d, mem freq %d), disabling CxSR\n",
+ dev_priv->fsb_freq, dev_priv->mem_freq);
}
void intel_modeset_cleanup(struct drm_device *dev)