On 9/12/2014 4:40 PM, Chris Wilson wrote:
On Fri, Sep 12, 2014 at 06:35:10PM +0300, Ville Syrjälä wrote:
On Fri, Sep 12, 2014 at 04:10:01PM +0100, Michel Thierry wrote:
From: Ben Widawsky <benjamin.widawsky@xxxxxxxxx>
The simple explanation is, the docs say to do this for GEN8. Perhaps we
want to do this for GEN7 too, I am not certain.
PDPs are saved and restored with context. Contexts (without execlists)
only exist on the render ring. The docs say that PDPs are not power
context save/restored. I've learned that this actually means something
which SW doesn't care about. So pretend the statement doesn't exist.
For non RCS, nothing changes.
Hang on. This is exactly what I was worried about... Which PDPs are
saved with context? Why doesn't this mean that we aren't overwitting
PDPs in use on other rings when RCS loads a new context?
-Chris
I was wondering the same when I read Ben's original comment. Could this
be GEN8 specific?
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