On Thu, Mar 07, 2013 at 12:22:43AM +0100, Daniel Vetter wrote:
> On Wed, Mar 06, 2013 at 08:03:16PM -0300, Paulo Zanoni wrote:
> > From: Paulo Zanoni <paulo.r.zanoni at intel.com>
> >
> > So don't read it when capturing the error state. This solves
> > "unclaimed register" messages on Haswell when we have a GPU hang.
> >
> > Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
>
> Iirc pipestat exists on vlv, so I think this needs a !HAS_PCH_SPLIT test.
> Ville should know for sure.
Yes, that's right.
> -Daniel
>
> > ---
> > drivers/gpu/drm/i915/i915_irq.c | 5 +++--
> > 1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> > index 2139714..29b1bb1 100644
> > --- a/drivers/gpu/drm/i915/i915_irq.c
> > +++ b/drivers/gpu/drm/i915/i915_irq.c
> > @@ -1366,8 +1366,9 @@ static void i915_capture_error_state(struct drm_device *dev)
> > else if (INTEL_INFO(dev)->gen == 6)
> > error->forcewake = I915_READ(FORCEWAKE);
> >
> > - for_each_pipe(pipe)
> > - error->pipestat[pipe] = I915_READ(PIPESTAT(pipe));
> > + if (INTEL_INFO(dev)->gen <= 4)
> > + for_each_pipe(pipe)
> > + error->pipestat[pipe] = I915_READ(PIPESTAT(pipe));
> >
> > if (INTEL_INFO(dev)->gen >= 6) {
> > error->error = I915_READ(ERROR_GEN6);
> > --
> > 1.7.10.4
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
> _______________________________________________
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> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrj?l?
Intel OTC
