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| author | Mark Nelson <markn@au1.ibm.com> | 2008-07-04 23:05:41 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-09 10:30:43 +0400 |
| commit | c8692362db3db3a6f644e05a477161d967430aac (patch) | |
| tree | b240cfe972dda9768fc330458da5667a7c15864f | |
| parent | fabb657005edbbcb0d13ee49a40f1f4b042a1d19 (diff) | |
| download | linux-c8692362db3db3a6f644e05a477161d967430aac.tar.xz | |
powerpc/dma: Add struct iommu_table argument to iommu_map_sg()
Make iommu_map_sg take a struct iommu_table. It did so before commit
740c3ce66700640a6e6136ff679b067e92125794 (iommu sg merging: ppc: make
iommu respect the segment size limits).
This stops the function looking in the archdata.dma_data for the iommu
table because in the future it will be called with a device that has
no table there.
This also has the nice side effect of making iommu_map_sg() match the
other map functions.
Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/kernel/dma_64.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/iommu.c | 7 | ||||
| -rw-r--r-- | include/asm-powerpc/iommu.h | 6 |
3 files changed, 7 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c index 3a317cb0636a..739744508c6e 100644 --- a/arch/powerpc/kernel/dma_64.c +++ b/arch/powerpc/kernel/dma_64.c @@ -68,7 +68,7 @@ static void dma_iommu_unmap_single(struct device *dev, dma_addr_t dma_handle, static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist, int nelems, enum dma_data_direction direction) { - return iommu_map_sg(dev, sglist, nelems, + return iommu_map_sg(dev, dev->archdata.dma_data, sglist, nelems, device_to_mask(dev), direction); } diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index 0c663669bc32..ccf00fe9cee6 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -267,11 +267,10 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, spin_unlock_irqrestore(&(tbl->it_lock), flags); } -int iommu_map_sg(struct device *dev, struct scatterlist *sglist, - int nelems, unsigned long mask, - enum dma_data_direction direction) +int iommu_map_sg(struct device *dev, struct iommu_table *tbl, + struct scatterlist *sglist, int nelems, + unsigned long mask, enum dma_data_direction direction) { - struct iommu_table *tbl = dev->archdata.dma_data; dma_addr_t dma_next = 0, dma_addr; unsigned long flags; struct scatterlist *s, *outs, *segstart; diff --git a/include/asm-powerpc/iommu.h b/include/asm-powerpc/iommu.h index 852e15f51a1e..65f6682bee87 100644 --- a/include/asm-powerpc/iommu.h +++ b/include/asm-powerpc/iommu.h @@ -79,9 +79,9 @@ extern void iommu_free_table(struct iommu_table *tbl, const char *node_name); extern struct iommu_table *iommu_init_table(struct iommu_table * tbl, int nid); -extern int iommu_map_sg(struct device *dev, struct scatterlist *sglist, - int nelems, unsigned long mask, - enum dma_data_direction direction); +extern int iommu_map_sg(struct device *dev, struct iommu_table *tbl, + struct scatterlist *sglist, int nelems, + unsigned long mask, enum dma_data_direction direction); extern void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist, int nelems, enum dma_data_direction direction); |