Re: [RFC PATCH 2/2] drm/i915/display: Implement fb_mmap callback function

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Hi Nirmoy,

On Thu, Mar 16, 2023 at 06:22:20PM +0100, Nirmoy Das wrote:
> If stolen memory allocation fails for fbdev, the driver will
> fallback to system memory. Calculation of smem_start is wrong
> for such framebuffer objs if the platform comes with no gmadr or
> no aperture. Solve this by adding fb_mmap callback which will
> use GTT if aperture is available otherwise will use cpu to access
> the framebuffer.
> 
> Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
> Cc: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
> Cc: Imre Deak <imre.deak@xxxxxxxxx>
> Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>

with Jani's suggestion:

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

Andi



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