On Wed, 2 Feb 2011 10:56:57 +0100, Francesco Allertsen <fallertsen@xxxxxxxxx> wrote: > On Tue, Feb 01, 2011 at 04:57:37PM +0000, Chris Wilson wrote: > > So, if this is the issue, then simply commenting out the tweaking of > > RSTDBYCTL in ironlake_enable_rc6() should prevent the hang. > > I've tried the following patch > > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index d7f237d..7769768 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -6527,7 +6527,6 @@ void ironlake_enable_rc6(struct drm_device *dev) > ADVANCE_LP_RING(); > > I915_WRITE(PWRCTXA, dev_priv->pwrctx->gtt_offset | PWRCTX_EN); > - I915_WRITE(RSTDBYCTL, I915_READ(RSTDBYCTL) & ~RCX_SW_EXIT); > } > > /* Set up chip specific display functions */ > > And it still hangs. Hmm, that was the only change I could spot between the two patches. Care to disable that function and see what happens? [i.e. put a return before we write anything to the ring] -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
