On Wed, Feb 15, 2012 at 11:10:08PM +, Chris Wilson wrote:
> On Wed, 15 Feb 2012 23:50:23 +0100, Daniel Vetter
> wrote:
> > + /* Sandybridge PPGTT errata: We need a global gtt mapping for MI and
> > +* pipe_control writes because the gpu doesn't properly redirect them
> > +* through
On Wed, Feb 15, 2012 at 11:10:08PM +, Chris Wilson wrote:
> On Wed, 15 Feb 2012 23:50:23 +0100, Daniel Vetter
> wrote:
> > + /* Sandybridge PPGTT errata: We need a global gtt mapping for MI and
> > +* pipe_control writes because the gpu doesn't properly redirect them
> > +* through
On Wed, 15 Feb 2012 23:50:23 +0100, Daniel Vetter
wrote:
> + /* Sandybridge PPGTT errata: We need a global gtt mapping for MI and
> + * pipe_control writes because the gpu doesn't properly redirect them
> + * through the ppgtt for non_secure batchbuffers. */
> + if (unlikely(IS_
PIPE_CONTROL on snb needs global gtt mappings in place to workaround a
hw gotcha. No other commands need such a workaround. Luckily we can
detect a PIPE_CONTROL commands easily because they have a write_domain
= I915_GEM_DOMAIN_INSTRUCTION (and nothing else has that).
v2: Binding the target of suc
