Re: [PATCH v7 06/11] drm/i915: Enable i915 perf stream for Haswell OA unit

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On Wed, Oct 26, 2016 at 12:05:44AM +0100, Chris Wilson wrote:
> On Tue, Oct 25, 2016 at 12:19:29AM +0100, Robert Bragg wrote:
> > +	/* So that we don't have to worry about updating the context ID
> > +	 * in OACONTOL on the fly we make sure to pin the context
> > +	 * upfront for the lifetime of the stream...
> > +	 */
> > +	vma = stream->ctx->engine[RCS].state;
> 
> There's a caveat here that suggests I had better wrap up this into its
> own function. (We need to flush dirty cachelines to memory on first
> binding of the context.)

Not that actually affects hsw.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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