[PATCH 1/7] drm/fb-helper: use gem_bo.resv, not dma_buf.resv in prepare_fb

[Sam Ravnborg]

On Tue, Jun 25, 2019 at 10:42:02PM +0200, Daniel Vetter wrote:
> With
> 
> commit 5f6ed9879a414636405a2bd77f122881695959e4
> Author: Daniel Vetter <daniel.vetter at ffwll.ch>
> Date:   Fri Jun 14 22:35:57 2019 +0200
> 
>     drm/prime: automatically set gem_obj->resv on import
> 
> we consistently set drm_gem_bo.resv for imported buffers. Which means
> we don't need to check to check the dma-buf in the prepare_fb helper,
checked a bit too much?
> but can generalize them so they're also useful for display+render
> drivers which use gem_bo.resv to track their own rendering for their
> own scanout buffers.
> 
> Cc: Emil Velikov <emil.velikov at collabora.com>
> Cc: Eric Anholt <eric at anholt.net>
> Cc: Rob Clark <robdclark at gmail.com>
> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>