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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: Stephen Rothwell <sfr@canb.auug.org.au>
This commit is contained in:
Stephen Rothwell 2005-11-19 00:33:56 +11:00
parent f365cfd0d8
commit 78baa2f8ad
2 changed files with 17 additions and 10 deletions
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10
include/asm-ppc/dma-mapping.h
View File

@ -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)

17
include/asm-ppc/io.h
View File

@ -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