[Intel-gfx] [RFC PATCH 2/2] drm/i915/display: Implement fb_mmap callback function

[Andi Shyti]

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 at intel.com>
> Cc: Andi Shyti <andi.shyti at linux.intel.com>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Cc: Jani Nikula <jani.nikula at intel.com>
> Cc: Imre Deak <imre.deak at intel.com>
> Signed-off-by: Nirmoy Das <nirmoy.das at intel.com>

with Jani's suggestion:

Reviewed-by: Andi Shyti <andi.shyti at linux.intel.com>

Andi