Re: [Intel-gfx] [PATCH v3] drm/i915/mtl: Disable stolen memory backed FB for A0

2023-04-04 Thread Hogander, Jouni
On Tue, 2023-04-04 at 23:26 +0200, Das, Nirmoy wrote: > > On 4/4/2023 8:27 PM, Ville Syrjälä wrote: > > On Tue, Apr 04, 2023 at 08:13:42PM +0200, Nirmoy Das wrote: > > > Stolen memory is not usable for MTL A0 stepping beyond > > > certain access size and we have no control over userspace > > >

Re: [Intel-gfx] [PATCH v3] drm/i915/mtl: Disable stolen memory backed FB for A0

2023-04-04 Thread Das, Nirmoy
On 4/4/2023 8:27 PM, Ville Syrjälä wrote: On Tue, Apr 04, 2023 at 08:13:42PM +0200, Nirmoy Das wrote: Stolen memory is not usable for MTL A0 stepping beyond certain access size and we have no control over userspace access size of /dev/fb which can be backed by stolen memory. So disable stolen

Re: [Intel-gfx] [PATCH v3] drm/i915/mtl: Disable stolen memory backed FB for A0

2023-04-04 Thread Ville Syrjälä
On Tue, Apr 04, 2023 at 08:13:42PM +0200, Nirmoy Das wrote: > Stolen memory is not usable for MTL A0 stepping beyond > certain access size and we have no control over userspace > access size of /dev/fb which can be backed by stolen memory. > So disable stolen memory backed fb by setting