drm/virtio: Support partial maps of GEM objects

Those are useful to implement coherent cross-vm mmap.

Signed-off-by: Sasha Finkelstein <[email protected]>
Reviewed-by: Dmitry Osipenko <dmitry.o

drm/virtio: Support partial maps of GEM objects

Those are useful to implement coherent cross-vm mmap.

Signed-off-by: Sasha Finkelstein <[email protected]>
Reviewed-by: Dmitry Osipenko <[email protected]>
Tested-by: Dmitry Osipenko <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Dmitry Osipenko <[email protected]>
[[email protected]: Corrected vm_size check to account vm_pgoff]

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mm: replace vma->vm_flags direct modifications with modifier calls

Replace direct modifications to vma->vm_flags with calls to modifier
functions to be able to track flag changes and to keep vma loc

mm: replace vma->vm_flags direct modifications with modifier calls

Replace direct modifications to vma->vm_flags with calls to modifier
functions to be able to track flag changes and to keep vma locking
correctness.

[[email protected]: fix drivers/misc/open-dice.c, per Hyeonggon Yoo]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Suren Baghdasaryan <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Acked-by: Mike Rapoport (IBM) <[email protected]>
Acked-by: Sebastian Reichel <[email protected]>
Reviewed-by: Liam R. Howlett <[email protected]>
Reviewed-by: Hyeonggon Yoo <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Arjun Roy <[email protected]>
Cc: Axel Rasmussen <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: David Howells <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Greg Thelen <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: Joel Fernandes <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Kent Overstreet <[email protected]>
Cc: Laurent Dufour <[email protected]>
Cc: Lorenzo Stoakes <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Minchan Kim <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Peter Oskolkov <[email protected]>
Cc: Peter Xu <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Punit Agrawal <[email protected]>
Cc: Sebastian Andrzej Siewior <[email protected]>
Cc: Shakeel Butt <[email protected]>
Cc: Soheil Hassas Yeganeh <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Will Deacon <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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drm/virtio: support mapping exported vram

Implement virtgpu specific map_dma_buf callback to support mapping
exported vram object dma-bufs. The dma-buf callback is used directly, as
vram objects don

drm/virtio: support mapping exported vram

Implement virtgpu specific map_dma_buf callback to support mapping
exported vram object dma-bufs. The dma-buf callback is used directly, as
vram objects don't have backing pages and thus can't implement the
drm_gem_object_funcs.get_sg_table callback.

Signed-off-by: David Stevens <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Gerd Hoffmann <[email protected]>

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drm/virtio: fix prime export for vram objects

commit 16845c5d5409 ("drm/virtio: implement blob resources: implement
vram object") and commit c6069a02fa55 ("drm/virtgpu: Set PRIME export
function in

drm/virtio: fix prime export for vram objects

commit 16845c5d5409 ("drm/virtio: implement blob resources: implement
vram object") and commit c6069a02fa55 ("drm/virtgpu: Set PRIME export
function in struct drm_gem_object_funcs") landed from different trees,
resulting in prime export never working for vram objects.

Cc: Gurchetan Singh <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: Gerd Hoffmann <[email protected]>
Signed-off-by: Chia-I Wu <[email protected]>
Reviewed-by: Gurchetan Singh <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Gerd Hoffmann <[email protected]>

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drm/virtio: align blob resources to page sizes

They trigger the BUG_ON() in drm_gem_private_object_init otherwise.

Signed-off-by: Chia-I Wu <[email protected]>
Link: http://patchwork.freedesktop.or

drm/virtio: align blob resources to page sizes

They trigger the BUG_ON() in drm_gem_private_object_init otherwise.

Signed-off-by: Chia-I Wu <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Cc: Gurchetan Singh <[email protected]>
Cc: Gerd Hoffmann <[email protected]>
Signed-off-by: Gerd Hoffmann <[email protected]>

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drm/virtio: implement blob resources: resource create blob ioctl

Implement resource create blob as specified.

Signed-off-by: Gerd Hoffmann <[email protected]>
Acked-by: Tomeu Vizoso <tomeu.vizoso@c

drm/virtio: implement blob resources: resource create blob ioctl

Implement resource create blob as specified.

Signed-off-by: Gerd Hoffmann <[email protected]>
Acked-by: Tomeu Vizoso <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Co-developed-by: Gurchetan Singh <[email protected]>
Signed-off-by: Gurchetan Singh <[email protected]>

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drm/virtio: implement blob resources: implement vram object

A virtio-gpu vram object is based on range-based allocation.
No guest shmemfs backing, so we call drm_gem_private_object_init.

This is fo

drm/virtio: implement blob resources: implement vram object

A virtio-gpu vram object is based on range-based allocation.
No guest shmemfs backing, so we call drm_gem_private_object_init.

This is for host memory without any guest backing (atleast initially).

Signed-off-by: Gerd Hoffmann <[email protected]>
Acked-by: Tomeu Vizoso <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Co-developed-by: Gurchetan Singh <[email protected]>
Signed-off-by: Gurchetan Singh <[email protected]>

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