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MIPS/jazzdma: Provide physical address directly

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MIPS jazz uses physical addresses for mapping pages, so convert
it to get them directly from DMA mapping routine.

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-v5-8-3bbfe3a25cdf@kernel.org
This commit is contained in:
Leon Romanovsky
2025-10-15 12:12:54 +03:00
committed by Marek Szyprowski
parent 6aaecdf0d8
commit e4e3fff66a
1 changed files with 13 additions and 7 deletions
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20
arch/mips/jazz/jazzdma.c
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@@ -521,18 +521,24 @@ static void jazz_dma_free(struct device *dev, size_t size, void *vaddr,
__free_pages(virt_to_page(vaddr), get_order(size));
}
static dma_addr_t jazz_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir,
unsigned long attrs)
static dma_addr_t jazz_dma_map_phys(struct device *dev, phys_addr_t phys,
size_t size, enum dma_data_direction dir, unsigned long attrs)
{
phys_addr_t phys = page_to_phys(page) + offset;
if (unlikely(attrs & DMA_ATTR_MMIO))
/*
* This check is included because older versions of the code lacked
* MMIO path support, and my ability to test this path is limited.
* However, from a software technical standpoint, there is no restriction,
* as the following code operates solely on physical addresses.
*/
return DMA_MAPPING_ERROR;
if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
arch_sync_dma_for_device(phys, size, dir);
return vdma_alloc(phys, size);
}
static void jazz_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
static void jazz_dma_unmap_phys(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction dir, unsigned long attrs)
{
if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
@@ -607,8 +613,8 @@ static void jazz_dma_sync_sg_for_cpu(struct device *dev,
const struct dma_map_ops jazz_dma_ops = {
.alloc = jazz_dma_alloc,
.free = jazz_dma_free,
.map_page = jazz_dma_map_page,
.unmap_page = jazz_dma_unmap_page,
.map_phys = jazz_dma_map_phys,
.unmap_phys = jazz_dma_unmap_phys,
.map_sg = jazz_dma_map_sg,
.unmap_sg = jazz_dma_unmap_sg,
.sync_single_for_cpu = jazz_dma_sync_single_for_cpu,