[Intel-gfx] [PATCH] drm/i915/cnl: Avoid ioremap_wc on Cannonlake as well.

Vivi, Rodrigo rodrigo.vivi at intel.com
Mon Aug 14 17:24:10 UTC 2017


Cc: chris as well...

On Mon, 2017-08-14 at 15:13 +0300, Joonas Lahtinen wrote:
> On Fri, 2017-08-11 at 17:36 -0700, Rodrigo Vivi wrote:
> > On Fri, Aug 11, 2017 at 4:39 PM, Rodrigo Vivi <rodrigo.vivi at intel.com> wrote:
> > > WC is apparently not an option for CNL+ on GTT here.
> > > Trying to use it we get hard hangs.
> > > 
> > > Credits-to: Ben Widawsky <benjamin.widawsky at intel.com>
> 
> I guess "Suggested-by:"/"Reported-by:" would be the standard one :)


indeed.
consider:

Suggested-by: Ben Widawsky <benjamin.widawsky at intel.com>

> 
> Do update the comment above the code, too.

I will.

> 
> Do we have a "Bspec:" one? Would make it easier to review.

No... for me that was purely experimental. So I was hoping that Ben or
Imre who caught that on BXT would be able to provide a bit of more info.

Without this patch CNL hang on the very first submission to render
engine.

> 
> Regards, Joonas



More information about the Intel-gfx mailing list