Re: [Intel-gfx] [PATCH] drm/i915: Force uncached PPAT for debugging purposes.

2017-02-28 Thread Vivi, Rodrigo
On Tue, 2017-02-28 at 09:05 +, Chris Wilson wrote: > On Mon, Feb 27, 2017 at 05:18:08PM -0800, Ben Widawsky wrote: > > On 17-02-27 17:12:07, Rodrigo Vivi wrote: > > >Many screen corruptions and hangs in the past were somehow > > >related to the caches. In many situations forcing the uncached >

Re: [Intel-gfx] [PATCH] drm/i915: Force uncached PPAT for debugging purposes.

2017-02-28 Thread Chris Wilson
On Mon, Feb 27, 2017 at 05:18:08PM -0800, Ben Widawsky wrote: > On 17-02-27 17:12:07, Rodrigo Vivi wrote: > >Many screen corruptions and hangs in the past were somehow > >related to the caches. In many situations forcing the uncached > >was useful at least to narrow down the issue by confirming it

Re: [Intel-gfx] [PATCH] drm/i915: Force uncached PPAT for debugging purposes.

2017-02-27 Thread Ben Widawsky
On 17-02-27 17:12:07, Rodrigo Vivi wrote: Many screen corruptions and hangs in the past were somehow related to the caches. In many situations forcing the uncached was useful at least to narrow down the issue by confirming it was cache related. Instead of having to hardcode it everytime that we

[Intel-gfx] [PATCH] drm/i915: Force uncached PPAT for debugging purposes.

2017-02-27 Thread Rodrigo Vivi
Many screen corruptions and hangs in the past were somehow related to the caches. In many situations forcing the uncached was useful at least to narrow down the issue by confirming it was cache related. Instead of having to hardcode it everytime that we suspect on this table let's provide a