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This framework allows a unified userspace interface for dma-buf
exporters, allowing userland to allocate specific types of memory
for use in dma-buf sharing.
Each heap is given its own device node, which a user can allocate
a dma-buf fd from using the DMA_HEAP_IOC_ALLOC.
This code is an evoluiton of the Android ION implementation,
and a big thanks is due to its authors/maintainers over time
for their effort:
Rebecca Schultz Zavin, Colin Cross, Benjamin Gaignard,
Laura Abbott, and many other contributors!
Cc: Laura Abbott <[email protected]>
Cc: Benjamin Gaignard <[email protected]>
Cc: Sumit Semwal <[email protected]>
Cc: Liam Mark <[email protected]>
Cc: Pratik Patel <[email protected]>
Cc: Brian Starkey <[email protected]>
Cc: Vincent Donnefort <[email protected]>
Cc: Sudipto Paul <[email protected]>
Cc: Andrew F. Davis <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Chenbo Feng <[email protected]>
Cc: Alistair Strachan <[email protected]>
Cc: Hridya Valsaraju <[email protected]>
Cc: Sandeep Patil <[email protected]>
Cc: Hillf Danton <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: [email protected]
Reviewed-by: Brian Starkey <[email protected]>
Acked-by: Sandeep Patil <[email protected]>
Signed-off-by: Andrew F. Davis <[email protected]>
Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Sumit Semwal <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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This reverts commit a69b0e855d3fd278ff6f09a23e1edf929538e304.
This patchset doesn't meet the UAPI requirements set out in [1] for the DRM
subsystem. Once the userspace component is reviewed and ready for merge
we can try again.
[1]- https://01.org/linuxgraphics/gfx-docs/drm/gpu/drm-uapi.html#open-source-userspace-requirements
Fixes: a69b0e855d3f ("dma-buf: Add dma-buf heaps framework")
Cc: Laura Abbott <[email protected]>
Cc: Benjamin Gaignard <[email protected]>
Cc: Sumit Semwal <[email protected]>
Cc: Liam Mark <[email protected]>
Cc: Pratik Patel <[email protected]>
Cc: Brian Starkey <[email protected]>
Cc: Vincent Donnefort <[email protected]>
Cc: Sudipto Paul <[email protected]>
Cc: Andrew F. Davis <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Chenbo Feng <[email protected]>
Cc: Alistair Strachan <[email protected]>
Cc: Hridya Valsaraju <[email protected]>
Cc: Hillf Danton <[email protected]>
Cc: [email protected]
Cc: Brian Starkey <[email protected]>
Cc: John Stultz <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Cc: Sean Paul <[email protected]>
Cc: "Andrew F. Davis" <[email protected]>
Cc: [email protected]
Cc: [email protected]
Acked-by: David Airlie <[email protected]>
Signed-off-by: Sean Paul <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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This framework allows a unified userspace interface for dma-buf
exporters, allowing userland to allocate specific types of memory
for use in dma-buf sharing.
Each heap is given its own device node, which a user can allocate
a dma-buf fd from using the DMA_HEAP_IOC_ALLOC.
This code is an evoluiton of the Android ION implementation,
and a big thanks is due to its authors/maintainers over time
for their effort:
Rebecca Schultz Zavin, Colin Cross, Benjamin Gaignard,
Laura Abbott, and many other contributors!
Cc: Laura Abbott <[email protected]>
Cc: Benjamin Gaignard <[email protected]>
Cc: Sumit Semwal <[email protected]>
Cc: Liam Mark <[email protected]>
Cc: Pratik Patel <[email protected]>
Cc: Brian Starkey <[email protected]>
Cc: Vincent Donnefort <[email protected]>
Cc: Sudipto Paul <[email protected]>
Cc: Andrew F. Davis <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Chenbo Feng <[email protected]>
Cc: Alistair Strachan <[email protected]>
Cc: Hridya Valsaraju <[email protected]>
Cc: Hillf Danton <[email protected]>
Cc: [email protected]
Reviewed-by: Benjamin Gaignard <[email protected]>
Reviewed-by: Brian Starkey <[email protected]>
Acked-by: Laura Abbott <[email protected]>
Tested-by: Ayan Kumar Halder <[email protected]>
Signed-off-by: Andrew F. Davis <[email protected]>
Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Sumit Semwal <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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