[PATCH 2/2] drm/xe: Use 64K pages for scanout buffers for Xe2

[Zbigniew Kempczyński]

On Tue, Jul 09, 2024 at 12:26:15PM +0100, Matthew Auld wrote:
> On 09/07/2024 12:12, Zbigniew Kempczyński wrote:
> > Set Xe2 platforms to use 64K pages for display.
> > 
> > Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
> > Cc: Matthew Auld <matthew.auld at intel.com>
> > Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> > ---
> >   drivers/gpu/drm/xe/xe_pci.c | 1 +
> >   1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
> > index 53b67f39c7d5..b629145d23fa 100644
> > --- a/drivers/gpu/drm/xe/xe_pci.c
> > +++ b/drivers/gpu/drm/xe/xe_pci.c
> > @@ -177,6 +177,7 @@ static const struct xe_graphics_desc graphics_xe2 = {
> >   	.name = "Xe2_LPG / Xe2_HPG",
> >   	XE2_GFX_FEATURES,
> > +	.vram_flags = XE_VRAM_FLAGS_DISPLAY_NEED64K,
> 
> This change will also apply to lnl, but I don't think we have a way of
> forcefully getting 64K pages for system memory atm. Do we just need this for
> bmg or is it really all of xe2?

Issue we've seen was on BMG. Do you suggest to separate BMG desc entry
to keep LNL intact?

--
Zbigniew

> 
> >   };
> >   static const struct xe_media_desc media_xem = {