Re: [Intel-gfx] [PATCH v8 2/2] drm/i915: Use correct huge page manager for MTL

[Andi Shyti]

Hi Andrzej,

> MTL currently uses gen8_ppgtt_insert_huge when managing huge pages.
> This is because MTL reports as not supporting 64K pages, or more
> accurately, the system that reports whether a platform has 64K pages
> reports false for MTL.  This is only half correct, as the 64K page support
> reporting system only cares about 64K page support for LMEM, which MTL
> doesn't have.
> 
> MTL should be using xehpsdv_ppgtt_insert_huge.  However, simply changing
> over to using that manager doesn't resolve the issue because MTL is
> expecting the virtual address space for the page table to be flushed after
> initialization, so we must also add a flush statement there.
> 
> Signed-off-by: Jonathan Cavitt <jonathan.cavitt@xxxxxxxxx>
> Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx>
> Signed-off-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>

Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx> 

Andi