On Thu, 23 Nov 2023 15:48:48 +0100
Boris Brezillon wrote:
> On Mon, 30 Oct 2023 02:01:54 +0300
> Dmitry Osipenko wrote:
>
> > To simplify the drm-shmem refcnt handling, we're moving away from
> > the implicit get_pages() that is used by get_pages_sgt(). From now on
> > drivers will have to pin
On Mon, 30 Oct 2023 02:01:54 +0300
Dmitry Osipenko wrote:
> To simplify the drm-shmem refcnt handling, we're moving away from
> the implicit get_pages() that is used by get_pages_sgt(). From now on
> drivers will have to pin pages while they use sgt. Panfrost's shrinker
> doesn't support swapping
On Thu, 23 Nov 2023 15:24:32 +0300
Dmitry Osipenko wrote:
> On 11/23/23 12:05, Boris Brezillon wrote:
> > On Thu, 23 Nov 2023 01:04:56 +0300
> > Dmitry Osipenko wrote:
> >
> >> On 11/10/23 13:53, Boris Brezillon wrote:
> >>> Hm, there was no drm_gem_shmem_get_pages_sgt() call here, why
> >>
On 11/23/23 12:05, Boris Brezillon wrote:
> On Thu, 23 Nov 2023 01:04:56 +0300
> Dmitry Osipenko wrote:
>
>> On 11/10/23 13:53, Boris Brezillon wrote:
>>> Hm, there was no drm_gem_shmem_get_pages_sgt() call here, why should we
>>> add a drm_gem_shmem_get_pages()? What we should do instead is add
On Thu, 23 Nov 2023 01:04:56 +0300
Dmitry Osipenko wrote:
> On 11/10/23 13:53, Boris Brezillon wrote:
> > Hm, there was no drm_gem_shmem_get_pages_sgt() call here, why should we
> > add a drm_gem_shmem_get_pages()? What we should do instead is add a
> > drm_gem_shmem_get_pages() for each drm_gem_
On 11/10/23 13:53, Boris Brezillon wrote:
> Hm, there was no drm_gem_shmem_get_pages_sgt() call here, why should we
> add a drm_gem_shmem_get_pages()? What we should do instead is add a
> drm_gem_shmem_get_pages() for each drm_gem_shmem_get_pages_sgt() we
> have in the driver (in panfrost_mmu_map()
On Mon, 30 Oct 2023 02:01:54 +0300
Dmitry Osipenko wrote:
> To simplify the drm-shmem refcnt handling, we're moving away from
> the implicit get_pages() that is used by get_pages_sgt(). From now on
> drivers will have to pin pages while they use sgt. Panfrost's shrinker
> doesn't support swapping
To simplify the drm-shmem refcnt handling, we're moving away from
the implicit get_pages() that is used by get_pages_sgt(). From now on
drivers will have to pin pages while they use sgt. Panfrost's shrinker
doesn't support swapping out BOs, hence pages are pinned and sgt is valid
as long as pages'
