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| author | Roland Dreier <rdreier@cisco.com> | 2007-02-14 09:32:53 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-14 17:09:51 +0100 |
| commit | b7de8e7e3c7b79a72c20c7fd58bd65df3d146b13 (patch) | |
| tree | b9e6007dbbf325159c173c0389f9a574e2cd1e52 /include/asm-ia64/dma-mapping.h | |
| parent | Merge branch 'master' of /home/trondmy/kernel/linux-2.6/ (diff) | |
| download | linux-b7de8e7e3c7b79a72c20c7fd58bd65df3d146b13.tar.xz linux-b7de8e7e3c7b79a72c20c7fd58bd65df3d146b13.zip | |
[PATCH] ia64: fix noncoherent DMA API so devres builds
On ia64, drivers/base/dma-mapping.c doesn't build because it calls
dma_alloc_noncoherent() and dma_free_noncoherent(), which appear to be
terminally broken; the calls end up generating errors like
drivers/base/dma-mapping.c: In function 'dmam_noncoherent_release':
drivers/base/dma-mapping.c:32: error: 'struct ia64_machine_vector' has no member named 'platform_dma_free_coherent'
because the multiple levels of macro expansion in <asm/dma-mapping.h> and
<asm/machvec.h> end up turning a call to dma_free_noncoherent() into
ia64_mv.platform_dma_free_coherent (instead of the intended
ia64_mv.dma_free_coherent).
This patch fixes this by converting dma_{alloc,free}_noncoherent() into
inline functions that call the corresponding coherent functions, instead of
trying to do this with macros.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-ia64/dma-mapping.h')
| -rw-r--r-- | include/asm-ia64/dma-mapping.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/asm-ia64/dma-mapping.h b/include/asm-ia64/dma-mapping.h index ebd5887f4b1a..6299b51575bb 100644 --- a/include/asm-ia64/dma-mapping.h +++ b/include/asm-ia64/dma-mapping.h @@ -8,9 +8,20 @@ #include <asm/machvec.h> #define dma_alloc_coherent platform_dma_alloc_coherent -#define dma_alloc_noncoherent platform_dma_alloc_coherent /* coherent mem. is cheap */ +/* coherent mem. is cheap */ +static inline void * +dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle, + gfp_t flag) +{ + return dma_alloc_coherent(dev, size, dma_handle, flag); +} #define dma_free_coherent platform_dma_free_coherent -#define dma_free_noncoherent platform_dma_free_coherent +static inline void +dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr, + dma_addr_t dma_handle) +{ + dma_free_coherent(dev, size, cpu_addr, dma_handle); +} #define dma_map_single platform_dma_map_single #define dma_map_sg platform_dma_map_sg #define dma_unmap_single platform_dma_unmap_single |