Commit 78baa2f8 authored by Stephen Rothwell's avatar Stephen Rothwell
Browse files

ppc32: move some dma routines 



Every other architecture define dma_cache_{inv,wback,wback_inv}
in asm/io.h and doing so brings us closer to ppc64.

Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
parent f365cfd0

include/asm-ppc/dma-mapping.h

+0 −10
Original line number Diff line number Diff line
@@ -24,22 +24,12 @@ extern void __dma_free_coherent(size_t size, void *vaddr); 
extern void __dma_sync(void *vaddr, size_t size, int direction);

extern void __dma_sync_page(struct page *page, unsigned long offset,

				 size_t size, int direction);

#define dma_cache_inv(_start,_size) \

	invalidate_dcache_range(_start, (_start + _size))

#define dma_cache_wback(_start,_size) \

	clean_dcache_range(_start, (_start + _size))

#define dma_cache_wback_inv(_start,_size) \

	flush_dcache_range(_start, (_start + _size))



#else /* ! CONFIG_NOT_COHERENT_CACHE */

/*

 * Cache coherent cores.

 */



#define dma_cache_inv(_start,_size)		do { } while (0)

#define dma_cache_wback(_start,_size)		do { } while (0)

#define dma_cache_wback_inv(_start,_size)	do { } while (0)



#define __dma_alloc_coherent(gfp, size, handle)	NULL

#define __dma_free_coherent(size, addr)		do { } while (0)

#define __dma_sync(addr, size, rw)		do { } while (0)

include/asm-ppc/io.h

+17 −0
Original line number Diff line number Diff line
@@ -545,6 +545,23 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *); 
#include <asm/mpc8260_pci9.h>

#endif



#ifdef CONFIG_NOT_COHERENT_CACHE



#define dma_cache_inv(_start,_size) \

	invalidate_dcache_range(_start, (_start + _size))

#define dma_cache_wback(_start,_size) \

	clean_dcache_range(_start, (_start + _size))

#define dma_cache_wback_inv(_start,_size) \

	flush_dcache_range(_start, (_start + _size))



#else



#define dma_cache_inv(_start,_size)		do { } while (0)

#define dma_cache_wback(_start,_size)		do { } while (0)

#define dma_cache_wback_inv(_start,_size)	do { } while (0)



#endif



/*

 * Convert a physical pointer to a virtual kernel pointer for /dev/mem

 * access