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| author | Christoph Hellwig <hch@lst.de> | 2020-11-24 16:38:40 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-02-09 18:01:38 +0100 |
| commit | 81d88ce55092edf1a1f928efb373f289c6b90efd (patch) | |
| tree | 5a1706ea280e7f9a653512ff492bbcc6129485e7 /include/linux/dma-map-ops.h | |
| parent | 9dc00b25eadf2908ae76ac0607b55a9f4e0e0cdc (diff) | |
| download | lwn-81d88ce55092edf1a1f928efb373f289c6b90efd.tar.gz lwn-81d88ce55092edf1a1f928efb373f289c6b90efd.zip | |
dma-mapping: remove the {alloc,free}_noncoherent methods
It turns out allowing non-contigous allocations here was a rather bad
idea, as we'll now need to define ways to get the pages for mmaping
or dma_buf sharing. Revert this change and stick to the original
concept. A different API for the use case of non-contigous allocations
will be added back later.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Ricardo Ribalda <ribalda@chromium.org>:wq
Diffstat (limited to 'include/linux/dma-map-ops.h')
| -rw-r--r-- | include/linux/dma-map-ops.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h index 70fcd0f610ea..11e02537b9e0 100644 --- a/include/linux/dma-map-ops.h +++ b/include/linux/dma-map-ops.h @@ -22,11 +22,6 @@ struct dma_map_ops { gfp_t gfp); void (*free_pages)(struct device *dev, size_t size, struct page *vaddr, dma_addr_t dma_handle, enum dma_data_direction dir); - void *(*alloc_noncoherent)(struct device *dev, size_t size, - dma_addr_t *dma_handle, enum dma_data_direction dir, - gfp_t gfp); - void (*free_noncoherent)(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle, enum dma_data_direction dir); int (*mmap)(struct device *, struct vm_area_struct *, void *, dma_addr_t, size_t, unsigned long attrs); |