> >Subject: Re: [PATCH 3/5] drm/i915/dmabuf: Add LMEM knowledge to dmabuf
> >map handler
> >
> >On Wed, Apr 22, 2020 at 05:25:17PM -0400, Michael J. Ruhl wrote:
> >> LMEM backed buffer objects do not have struct page information.
> >> Instead the dma_address
>-Original Message-
>From: Daniel Vetter
>Sent: Tuesday, April 28, 2020 11:02 AM
>To: Ruhl, Michael J
>Cc: dri-devel@lists.freedesktop.org; dan...@ffwll.ch; Xiong, Jianxin
>
>Subject: Re: [PATCH 3/5] drm/i915/dmabuf: Add LMEM knowledge to dmabuf
>map handler
>
On Wed, Apr 22, 2020 at 05:25:17PM -0400, Michael J. Ruhl wrote:
> LMEM backed buffer objects do not have struct page information.
> Instead the dma_address of the struct sg is used to store the
> LMEM address information (relative to the device, this is not
> the CPU physical address).
>
> The
LMEM backed buffer objects do not have struct page information.
Instead the dma_address of the struct sg is used to store the
LMEM address information (relative to the device, this is not
the CPU physical address).
The dmabuf map handler requires pages to do a dma_map_xx.
Add new
