On Thu, 2009-10-22 at 17:11 -0700, Suresh Siddha wrote: > On Thu, 2009-10-22 at 16:10 -0700, Jesse Barnes wrote: > > On Thu, 22 Oct 2009 14:47:30 -0700 > > Suresh Siddha <suresh.b.sid...@intel.com> wrote: > > > > > On Thu, 2009-10-22 at 08:34 -0700, Eric Anholt wrote: > > > > Can we just not create the _wc sysfs entry if we don't have PAT? I > > > > don't think there's userland relying on its presence as opposed to > > > > the non-_wc entry. > > > > > > Yes indeed. Jesse do you see an issue with this? This is simple and > > > clean. Thanks Eric. > > > > Yeah, I think that will be fine. In fact, older versions of > > libpciaccess will behave better if we do it that way (iirc it only > > allocates an MTRR if the resource_wc file doesn't exist or fails to get > > mapped). > > Eric, care to send the patch?
I don't have a patch, I was just suggesting a way to handle the submitter's problem that won't involve complicated changes that nobody else will be testing since everyone *should* have a graphics driver for their graphics hardware. -- Eric Anholt e...@anholt.net eric.anh...@intel.com
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