It fixes suspend/resume failure of xf86-video-intel dri2
branch. As dri2 branch doesn't call I830DRIResume() to restore
hardware status page anymore, we need to preserve
this register across suspend/resume.
Signed-off-by: Peng Li <peng.li@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
u32 saveDSPBCNTR;
u32 saveDSPARB;
u32 saveRENDERSTANDBY;
u32 saveDSPBCNTR;
u32 saveDSPARB;
u32 saveRENDERSTANDBY;
u32 savePIPEACONF;
u32 savePIPEBCONF;
u32 savePIPEASRC;
u32 savePIPEACONF;
u32 savePIPEBCONF;
u32 savePIPEASRC;
if (IS_I965G(dev) && IS_MOBILE(dev))
dev_priv->saveRENDERSTANDBY = I915_READ(MCHBAR_RENDER_STANDBY);
if (IS_I965G(dev) && IS_MOBILE(dev))
dev_priv->saveRENDERSTANDBY = I915_READ(MCHBAR_RENDER_STANDBY);
+ /* Hardware status page */
+ dev_priv->saveHWS = I915_READ(HWS_PGA);
+
/* Display arbitration control */
dev_priv->saveDSPARB = I915_READ(DSPARB);
/* Display arbitration control */
dev_priv->saveDSPARB = I915_READ(DSPARB);
if (IS_I965G(dev) && IS_MOBILE(dev))
I915_WRITE(MCHBAR_RENDER_STANDBY, dev_priv->saveRENDERSTANDBY);
if (IS_I965G(dev) && IS_MOBILE(dev))
I915_WRITE(MCHBAR_RENDER_STANDBY, dev_priv->saveRENDERSTANDBY);
+ /* Hardware status page */
+ I915_WRITE(HWS_PGA, dev_priv->saveHWS);
+
/* Display arbitration */
I915_WRITE(DSPARB, dev_priv->saveDSPARB);
/* Display arbitration */
I915_WRITE(DSPARB, dev_priv->saveDSPARB);