Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4a09ab67 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven
Browse files

m68k: Provide dma_alloc_attrs()/dma_free_attrs() 



Since commit 0049fb26 ("OMAPFB: use
dma_alloc_attrs to allocate memory") we have one non-arch user of
dma_{alloc,free}_attrs().

Hence provide these functions, as wrappers around
dma_{alloc,free}_coherent().

Note that most architectures do it the other way around. But as so far
m68k doesn't support the attributes at all, our solution should generate
smaller code.

Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
parent a49f0d1e

arch/m68k/include/asm/dma-mapping.h

+16 −0
Original line number Diff line number Diff line
@@ -21,6 +21,22 @@ extern void *dma_alloc_coherent(struct device *, size_t, 
extern void dma_free_coherent(struct device *, size_t,

			      void *, dma_addr_t);



static inline void *dma_alloc_attrs(struct device *dev, size_t size,

				    dma_addr_t *dma_handle, gfp_t flag,

				    struct dma_attrs *attrs)

{

	/* attrs is not supported and ignored */

	return dma_alloc_coherent(dev, size, dma_handle, flag);

}



static inline void dma_free_attrs(struct device *dev, size_t size,

				  void *cpu_addr, dma_addr_t dma_handle,

				  struct dma_attrs *attrs)

{

	/* attrs is not supported and ignored */

	dma_free_coherent(dev, size, cpu_addr, dma_handle);

}



static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,

					  dma_addr_t *handle, gfp_t flag)

{