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| 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 /kernel/dma/mapping.c | |
| parent | f74ee32963f1b74865fe679e2475450434fea51c (diff) | |
| download | linux-ed7fc3cbb38ffdca7a189e15982ce96acab4684c.tar.gz linux-ed7fc3cbb38ffdca7a189e15982ce96acab4684c.zip | |
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 'kernel/dma/mapping.c')
| -rw-r--r-- | kernel/dma/mapping.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index fe7472f13b10..4080aebe5deb 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -169,6 +169,8 @@ dma_addr_t dma_map_phys(struct device *dev, phys_addr_t phys, size_t size, addr = dma_direct_map_phys(dev, phys, size, dir, attrs); else if (use_dma_iommu(dev)) addr = iommu_dma_map_phys(dev, phys, size, dir, attrs); + else if (ops->map_phys) + addr = ops->map_phys(dev, phys, size, dir, attrs); else if (is_mmio) { if (!ops->map_resource) return DMA_MAPPING_ERROR; @@ -223,6 +225,8 @@ void dma_unmap_phys(struct device *dev, dma_addr_t addr, size_t size, dma_direct_unmap_phys(dev, addr, size, dir, attrs); else if (use_dma_iommu(dev)) iommu_dma_unmap_phys(dev, addr, size, dir, attrs); + else if (ops->unmap_phys) + ops->unmap_phys(dev, addr, size, dir, attrs); else if (is_mmio) { if (ops->unmap_resource) ops->unmap_resource(dev, addr, size, dir, attrs); |