Re: [PATCH v7 0/8] dma-buf: Use revoke mechanism to invalidate shared buffers

[Maxime Ripard]

On Wed, Feb 04, 2026 at 01:52:12PM +0200, Leon Romanovsky wrote:
> On Wed, Feb 04, 2026 at 09:56:08AM +0100, Maxime Ripard wrote:
> > On Wed, Feb 04, 2026 at 10:16:30AM +0200, Leon Romanovsky wrote:
> > > On Mon, Feb 02, 2026 at 06:04:25PM +0200, Leon Romanovsky wrote:
> > > > On Sat, Jan 31, 2026 at 07:34:10AM +0200, Leon Romanovsky wrote:
> > > > > Changelog:
> > > > > v7:
> > > > 
> > > > <...>
> > > > 
> > > > > Leon Romanovsky (8):
> > > > >       dma-buf: Rename .move_notify() callback to a clearer identifier
> > > > >       dma-buf: Rename dma_buf_move_notify() to dma_buf_invalidate_mappings()
> > > > >       dma-buf: Always build with DMABUF_MOVE_NOTIFY
> > > > >       vfio: Wait for dma-buf invalidation to complete
> > > > >       dma-buf: Make .invalidate_mapping() truly optional
> > > > >       dma-buf: Add dma_buf_attach_revocable()
> > > > >       vfio: Permit VFIO to work with pinned importers
> > > > >       iommufd: Add dma_buf_pin()
> > > > > 
> > > > >  drivers/dma-buf/Kconfig                     | 12 -----
> > > > >  drivers/dma-buf/dma-buf.c                   | 69 ++++++++++++++++++++-----
> > > > >  drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 14 ++---
> > > > >  drivers/gpu/drm/amd/amdgpu/amdgpu_object.c  |  2 +-
> > > > >  drivers/gpu/drm/amd/amdkfd/Kconfig          |  2 +-
> > > > >  drivers/gpu/drm/virtio/virtgpu_prime.c      |  2 +-
> > > > >  drivers/gpu/drm/xe/tests/xe_dma_buf.c       |  7 ++-
> > > > >  drivers/gpu/drm/xe/xe_bo.c                  |  2 +-
> > > > >  drivers/gpu/drm/xe/xe_dma_buf.c             | 14 ++---
> > > > >  drivers/infiniband/core/umem_dmabuf.c       | 13 -----
> > > > >  drivers/infiniband/hw/mlx5/mr.c             |  2 +-
> > > > >  drivers/iommu/iommufd/pages.c               | 11 +++-
> > > > >  drivers/iommu/iommufd/selftest.c            |  2 +-
> > > > >  drivers/vfio/pci/vfio_pci_dmabuf.c          | 80 ++++++++++++++++++++++-------
> > > > >  include/linux/dma-buf.h                     | 17 +++---
> > > > >  15 files changed, 153 insertions(+), 96 deletions(-)
> > > > 
> > > > Christian,
> > > > 
> > > > Given the ongoing discussion around patch v5, I'm a bit unclear on the
> > > > current state. Is the series ready for merging, or do you need me to
> > > > rework anything further?
> > > 
> > > Christian,
> > > 
> > > Let's not miss the merge window for work that is already ready.
> > 
> > The cutoff date for the merge window was on 25/1, so it was already
> > missed by the time you sent your series.
> 
> The primary goal of this series is to update dma-buf. The changes in
> drivers/gpu/drm are limited to straightforward renames.

And yet, dma-buf is maintained through drm.

Also, it's a general rule Linus has, it's nothing specific to DRM.

Maxime

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