Commit 03d768a3 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

tools/virtio: stub DMA mapping functions 



Add dma_map_page_attrs and dma_unmap_page_attrs stubs.
Follow the same pattern as existing DMA mapping stubs.

Created using Cursor CLI.

Message-ID: <3512df1fe0e2129ea493434a21c940c50381cc93.1764873799.git.mst@redhat.com>
Acked-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 42059e68

tools/virtio/linux/dma-mapping.h

+4 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ enum dma_data_direction { 
#define dma_free_coherent(d, s, p, h) kfree(p)



#define dma_map_page(d, p, o, s, dir) (page_to_phys(p) + (o))

#define dma_map_page_attrs(d, p, o, s, dir, a) (page_to_phys(p) + (o))



#define dma_map_single(d, p, s, dir) (virt_to_phys(p))

#define dma_map_single_attrs(d, p, s, dir, a) (virt_to_phys(p))
@@ -29,6 +30,9 @@ enum dma_data_direction { 


#define dma_unmap_single(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)

#define dma_unmap_page(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)

#define dma_unmap_page_attrs(d, a, s, r, t) do { \

	(void)(d); (void)(a); (void)(s); (void)(r); (void)(t); \

} while (0)



#define sg_dma_address(sg) (0)

#define sg_dma_len(sg) (0)