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dma/ia64: update ia64 machvecs, swiotlb.c

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Change all ia64 machvecs to use the new dma_*map*_attrs() interfaces.
Implement the old dma_*map_*() interfaces in terms of the corresponding new
interfaces.  For ia64/sn, make use of one dma attribute,
DMA_ATTR_WRITE_BARRIER.  Introduce swiotlb_*map*_attrs() functions.

Signed-off-by: Arthur Kepner <akepner@sgi.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Roland Dreier <rdreier@cisco.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: David Miller <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Arthur Kepner 2008-04-29 01:00:32 -07:00 • committed by Linus Torvalds
parent a75b0a2f68
commit 309df0c503
9 changed files with 249 additions and 133 deletions
Download patch file Download diff file Expand all files Collapse all files

50
lib/swiotlb.c
View file

@ -555,7 +555,8 @@ swiotlb_full(struct device *dev, size_t size, int dir, int do_panic)
* either swiotlb_unmap_single or swiotlb_dma_sync_single is performed.
*/
dma_addr_t
swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir)
swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size,
int dir, struct dma_attrs *attrs)
{
dma_addr_t dev_addr = virt_to_bus(ptr);
void *map;
@ -588,6 +589,13 @@ swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir)
return dev_addr;
}
EXPORT_SYMBOL(swiotlb_map_single_attrs);
dma_addr_t
swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir)
{
return swiotlb_map_single_attrs(hwdev, ptr, size, dir, NULL);
}
/*
* Unmap a single streaming mode DMA translation. The dma_addr and size must
@ -598,8 +606,8 @@ swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir)
* whatever the device wrote there.
*/
void
swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size,
int dir)
swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr,
size_t size, int dir, struct dma_attrs *attrs)
{
char *dma_addr = bus_to_virt(dev_addr);
@ -609,7 +617,14 @@ swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size,
else if (dir == DMA_FROM_DEVICE)
dma_mark_clean(dma_addr, size);
}
EXPORT_SYMBOL(swiotlb_unmap_single_attrs);
void
swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size,
int dir)
{
return swiotlb_unmap_single_attrs(hwdev, dev_addr, size, dir, NULL);
}
/*
* Make physical memory consistent for a single streaming mode DMA translation
* after a transfer.
@ -680,6 +695,8 @@ swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
SYNC_FOR_DEVICE);
}
void swiotlb_unmap_sg_attrs(struct device *, struct scatterlist *, int, int,
struct dma_attrs *);
/*
* Map a set of buffers described by scatterlist in streaming mode for DMA.
* This is the scatter-gather version of the above swiotlb_map_single
@ -697,8 +714,8 @@ swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
* same here.
*/
int
swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
int dir)
swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
int dir, struct dma_attrs *attrs)
{
struct scatterlist *sg;
void *addr;
@ -716,7 +733,8 @@ swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
/* Don't panic here, we expect map_sg users
to do proper error handling. */
swiotlb_full(hwdev, sg->length, dir, 0);
swiotlb_unmap_sg(hwdev, sgl, i, dir);
swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir,
attrs);
sgl[0].dma_length = 0;
return 0;
}
@ -727,14 +745,22 @@ swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
}
return nelems;
}
EXPORT_SYMBOL(swiotlb_map_sg_attrs);
int
swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
int dir)
{
return swiotlb_map_sg_attrs(hwdev, sgl, nelems, dir, NULL);
}
/*
* Unmap a set of streaming mode DMA translations. Again, cpu read rules
* concerning calls here are the same as for swiotlb_unmap_single() above.
*/
void
swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
int dir)
swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
int nelems, int dir, struct dma_attrs *attrs)
{
struct scatterlist *sg;
int i;
@ -749,6 +775,14 @@ swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
dma_mark_clean(SG_ENT_VIRT_ADDRESS(sg), sg->dma_length);
}
}
EXPORT_SYMBOL(swiotlb_unmap_sg_attrs);
void
swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
int dir)
{
return swiotlb_unmap_sg_attrs(hwdev, sgl, nelems, dir, NULL);
}
/*
* Make physical memory consistent for a set of streaming mode DMA translations