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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-12-11 06:48:22 +0300 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-12-11 07:43:35 +0300 |
| commit | 837c54db21fc7047af75f3fe4295e32106449e34 (patch) | |
| tree | 911e841e38b9f9899f3a2278abdef41779d77a67 /include/asm-powerpc/prom.h | |
| parent | f276b5ba0d87eba4ce7aace9608d811776734cb5 (diff) | |
| download | linux-837c54db21fc7047af75f3fe4295e32106449e34.tar.xz | |
[POWERPC] Add of_translate_dma_address
This adds a variant of of_translate_address that uses the dma-ranges
property instead of "ranges", it's to be used by PCI code in parsing
the dma-ranges property.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/prom.h')
| -rw-r--r-- | include/asm-powerpc/prom.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h index 925e2d384bb3..78b7b0d494c0 100644 --- a/include/asm-powerpc/prom.h +++ b/include/asm-powerpc/prom.h @@ -202,6 +202,10 @@ static inline unsigned long of_read_ulong(const u32 *cell, int size) */ extern u64 of_translate_address(struct device_node *np, const u32 *addr); +/* Translate a DMA address from device space to CPU space */ +extern u64 of_translate_dma_address(struct device_node *dev, + const u32 *in_addr); + /* Extract an address from a device, returns the region size and * the address space flags too. The PCI version uses a BAR number * instead of an absolute index |