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IA64: sg chaining support

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This updates the ia64 iommu/pci dma mappers to sg chaining.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe
2007-10-16 11:27:26 +02:00
parent 46856afa01
commit 9b6eccfccb
4 changed files with 16 additions and 13 deletions
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14
arch/ia64/hp/common/sba_iommu.c
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@@ -396,7 +396,7 @@ sba_dump_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
printk(KERN_DEBUG " %d : DMA %08lx/%05x CPU %p\n", nents,
startsg->dma_address, startsg->dma_length,
sba_sg_address(startsg));
startsg++;
startsg = sg_next(startsg);
}
}
@@ -409,7 +409,7 @@ sba_check_sg( struct ioc *ioc, struct scatterlist *startsg, int nents)
while (the_nents-- > 0) {
if (sba_sg_address(the_sg) == 0x0UL)
sba_dump_sg(NULL, startsg, nents);
the_sg++;
the_sg = sg_next(the_sg);
}
}
@@ -1201,7 +1201,7 @@ sba_fill_pdir(
u32 pide = startsg->dma_address & ~PIDE_FLAG;
dma_offset = (unsigned long) pide & ~iovp_mask;
startsg->dma_address = 0;
dma_sg++;
dma_sg = sg_next(dma_sg);
dma_sg->dma_address = pide | ioc->ibase;
pdirp = &(ioc->pdir_base[pide >> iovp_shift]);
n_mappings++;
@@ -1228,7 +1228,7 @@ sba_fill_pdir(
pdirp++;
} while (cnt > 0);
}
startsg++;
startsg = sg_next(startsg);
}
/* force pdir update */
wmb();
@@ -1297,7 +1297,7 @@ sba_coalesce_chunks( struct ioc *ioc,
while (--nents > 0) {
unsigned long vaddr; /* tmp */
startsg++;
startsg = sg_next(startsg);
/* PARANOID */
startsg->dma_address = startsg->dma_length = 0;
@@ -1407,7 +1407,7 @@ int sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents, int di
#ifdef ALLOW_IOV_BYPASS_SG
ASSERT(to_pci_dev(dev)->dma_mask);
if (likely((ioc->dma_mask & ~to_pci_dev(dev)->dma_mask) == 0)) {
for (sg = sglist ; filled < nents ; filled++, sg++){
for_each_sg(sglist, sg, nents, filled) {
sg->dma_length = sg->length;
sg->dma_address = virt_to_phys(sba_sg_address(sg));
}
@@ -1501,7 +1501,7 @@ void sba_unmap_sg (struct device *dev, struct scatterlist *sglist, int nents, in
while (nents && sglist->dma_length) {
sba_unmap_single(dev, sglist->dma_address, sglist->dma_length, dir);
sglist++;
sglist = sg_next(sglist);
nents--;
}