dma-mapping: convert dummy ops to physical address mapping

Change dma_dummy_map_page and dma_dummy_unmap_page routines
to accept physical address and rename them.

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-v5-2-3bbfe3a25cdf@kernel.org

diff --git a/kernel/dma/dummy.c b/kernel/dma/dummy.c
index 92de80e5b057ed11a3caf4cba4d96a4e795bdaec..16a51736a2a39628add4609818e6efc2792d9082 100644 (file)
--- a/kernel/dma/dummy.c
+++ b/kernel/dma/dummy.c
@@ -11,17 +11,16 @@ static int dma_dummy_mmap(struct device *dev, struct vm_area_struct *vma,
        return -ENXIO;
 }
 
-static dma_addr_t dma_dummy_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 dma_dummy_map_phys(struct device *dev, phys_addr_t phys,
+               size_t size, enum dma_data_direction dir, unsigned long attrs)
 {
        return DMA_MAPPING_ERROR;
 }
-static void dma_dummy_unmap_page(struct device *dev, dma_addr_t dma_handle,
+static void dma_dummy_unmap_phys(struct device *dev, dma_addr_t dma_handle,
                size_t size, enum dma_data_direction dir, unsigned long attrs)
 {
        /*
-        * Dummy ops doesn't support map_page, so unmap_page should never be
+        * Dummy ops doesn't support map_phys, so unmap_page should never be
         * called.
         */
        WARN_ON_ONCE(true);
@@ -51,8 +50,8 @@ static int dma_dummy_supported(struct device *hwdev, u64 mask)
 
 const struct dma_map_ops dma_dummy_ops = {
        .mmap                   = dma_dummy_mmap,
-       .map_page               = dma_dummy_map_page,
-       .unmap_page             = dma_dummy_unmap_page,
+       .map_phys               = dma_dummy_map_phys,
+       .unmap_phys             = dma_dummy_unmap_phys,
        .map_sg                 = dma_dummy_map_sg,
        .unmap_sg               = dma_dummy_unmap_sg,
        .dma_supported          = dma_dummy_supported,