dma-buf: align fd_flags and heap_flags with dma_heap_allocation_data

dma_heap_allocation_data defines the UAPI as follows:

struct dma_heap_allocation_data {
__u64 len;
__u32 fd;
__u32 fd_fla

dma-buf: align fd_flags and heap_flags with dma_heap_allocation_data

dma_heap_allocation_data defines the UAPI as follows:

struct dma_heap_allocation_data {
__u64 len;
__u32 fd;
__u32 fd_flags;
__u64 heap_flags;
};

However, dma_heap_buffer_alloc() casts both fd_flags and heap_flags
into unsigned int. We're inconsistent with types in the non UAPI
arguments. This patch fixes it.

Signed-off-by: Barry Song <[email protected]>
Acked-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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dma-buf: heaps: Use _IOCTL_ for userspace IOCTL identifier

This is more consistent with the DMA and DRM frameworks convention. This
patch is only a name change, no logic is changed.

Signed-off-by:

dma-buf: heaps: Use _IOCTL_ for userspace IOCTL identifier

This is more consistent with the DMA and DRM frameworks convention. This
patch is only a name change, no logic is changed.

Signed-off-by: Andrew F. Davis <[email protected]>
Acked-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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dma-buf: Add dma-buf heaps framework

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.

Ea

dma-buf: Add dma-buf heaps framework

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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dma-buf: Add dma-buf heaps framework

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.

Ea

dma-buf: Add dma-buf heaps framework

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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