From: Deepak S <deepak.s@xxxxxxxxx>
This was fumbled in chv specific forcewake count during mmio reg read/write.
Issue introduced in
commit 95cf8b69f647322048929baffa8c7865aa6df2ad
Author: Deepak S <deepak.s@xxxxxxxxx>
Date: Mon Dec 16 12:16:54 2013 +0530
Subject: drm/i915/chv: Added CHV specific register read and write
Signed-off-by: Deepak S <deepak.s@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_uncore.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 8e3c686..ccad770 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -638,12 +638,12 @@ chv_read##x(struct drm_i915_private *dev_priv, off_t reg, bool trace) { \
} \
val = __raw_i915_read##x(dev_priv, reg); \
if (FORCEWAKE_RENDER & fwengine) { \
- if (dev_priv->uncore.fw_rendercount++ == 0) \
+ if (--dev_priv->uncore.fw_rendercount == 0) \
(dev_priv)->uncore.funcs.force_wake_put(dev_priv, \
fwengine); \
} \
if (FORCEWAKE_MEDIA & fwengine) { \
- if (dev_priv->uncore.fw_mediacount++ == 0) \
+ if (--dev_priv->uncore.fw_mediacount == 0) \
(dev_priv)->uncore.funcs.force_wake_put(dev_priv, \
fwengine); \
} \
@@ -803,12 +803,12 @@ chv_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace)
} \
__raw_i915_write##x(dev_priv, reg, val); \
if (__needs_put && (FORCEWAKE_RENDER & fwengine)) { \
- if (dev_priv->uncore.fw_rendercount++ == 0) \
+ if (--dev_priv->uncore.fw_rendercount == 0) \
(dev_priv)->uncore.funcs.force_wake_put(dev_priv, \
fwengine); \
} \
if (__needs_put && (FORCEWAKE_MEDIA & fwengine)) { \
- if (dev_priv->uncore.fw_mediacount++ == 0) \
+ if (--dev_priv->uncore.fw_mediacount == 0) \
(dev_priv)->uncore.funcs.force_wake_put(dev_priv, \
fwengine); \
} \
--
1.8.3.2
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