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| author | Leon Romanovsky <leonro@nvidia.com> | 2025-09-09 16:27:37 +0300 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2025-09-12 00:18:20 +0200 |
| commit | 18c9cbb042c930eb37f68df216319a371f4fcb22 (patch) | |
| tree | a4b5b32e9ed3f51bcb58eafe462c4788d8ad984f /rust/helpers/bitmap.c | |
| parent | 6eb1e769b2c13a33cb2ca694454a7561d3d72c0a (diff) | |
dma-mapping: implement DMA_ATTR_MMIO for dma_(un)map_page_attrs()
Make dma_map_page_attrs() and dma_map_page_attrs() respect
DMA_ATTR_MMIO.
DMA_ATR_MMIO makes the functions behave the same as
dma_(un)map_resource():
- No swiotlb is possible
- Legacy dma_ops arches use ops->map_resource()
- No kmsan
- No arch_dma_map_phys_direct()
The prior patches have made the internal functions called here
support DMA_ATTR_MMIO.
This is also preparation for turning dma_map_resource() into an inline
calling dma_map_phys(DMA_ATTR_MMIO) to consolidate the flows.
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/3660e2c78ea409d6c483a215858fb3af52cd0ed3.1757423202.git.leonro@nvidia.com
Diffstat (limited to 'rust/helpers/bitmap.c')
0 files changed, 0 insertions, 0 deletions