diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2025-10-15 12:12:47 +0300 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2025-10-29 10:27:29 +0100 |
| commit | ed7fc3cbb38ffdca7a189e15982ce96acab4684c (patch) | |
| tree | 74bb75c3137b2a40aca4d811173d357f9918aa42 /include/linux | |
| parent | f74ee32963f1b74865fe679e2475450434fea51c (diff) | |
dma-mapping: prepare dma_map_ops to conversion to physical address
Add new .map_phys() and .unmap_phys() callbacks to dma_map_ops as a
preparation to replace .map_page() and .unmap_page() respectively.
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20251015-remove-map-page-v5-1-3bbfe3a25cdf@kernel.org
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dma-map-ops.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h index 10882d00cb17..79d2a74d4b49 100644 --- a/include/linux/dma-map-ops.h +++ b/include/linux/dma-map-ops.h @@ -37,6 +37,13 @@ struct dma_map_ops { void (*unmap_page)(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir, unsigned long attrs); + + dma_addr_t (*map_phys)(struct device *dev, phys_addr_t phys, + size_t size, enum dma_data_direction dir, + unsigned long attrs); + void (*unmap_phys)(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction dir, + unsigned long attrs); /* * map_sg should return a negative error code on error. See * dma_map_sgtable() for a list of appropriate error codes |