diff options
| author | Linus Torvalds | 2015-09-02 13:22:38 -0700 |
|---|---|---|
| committer | Linus Torvalds | 2015-09-02 13:22:38 -0700 |
| commit | d975f309a8b250e67b66eabeb56be6989c783629 (patch) | |
| tree | 846cae85891024f7c45416d085df90d98ec2e51b /drivers/iommu | |
| parent | 52b084d31cbc8e90cb6fc1ac4061d9a24375c89d (diff) | |
| parent | f8bcbe62acd0e1ce9004b83e98a4af87ae385dcf (diff) | |
Merge branch 'for-4.3/sg' of git://git.kernel.dk/linux-block
Pull SG updates from Jens Axboe:
"This contains a set of scatter-gather related changes/fixes for 4.3:
- Add support for limited chaining of sg tables even for
architectures that do not set ARCH_HAS_SG_CHAIN. From Christoph.
- Add sg chain support to target_rd. From Christoph.
- Fixup open coded sg->page_link in crypto/omap-sham. From
Christoph.
- Fixup open coded crypto ->page_link manipulation. From Dan.
- Also from Dan, automated fixup of manual sg_unmark_end()
manipulations.
- Also from Dan, automated fixup of open coded sg_phys()
implementations.
- From Robert Jarzmik, addition of an sg table splitting helper that
drivers can use"
* 'for-4.3/sg' of git://git.kernel.dk/linux-block:
lib: scatterlist: add sg splitting function
scatterlist: use sg_phys()
crypto/omap-sham: remove an open coded access to ->page_link
scatterlist: remove open coded sg_unmark_end instances
crypto: replace scatterwalk_sg_chain with sg_chain
target/rd: always chain S/G list
scatterlist: allow limited chaining without ARCH_HAS_SG_CHAIN
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 4 | ||||
| -rw-r--r-- | drivers/iommu/iommu.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 697291aceea7..c82ebee6c7e5 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2103,7 +2103,7 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, sg_res = aligned_nrpages(sg->offset, sg->length); sg->dma_address = ((dma_addr_t)iov_pfn << VTD_PAGE_SHIFT) + sg->offset; sg->dma_length = sg->length; - pteval = page_to_phys(sg_page(sg)) | prot; + pteval = (sg_phys(sg) & PAGE_MASK) | prot; phys_pfn = pteval >> VTD_PAGE_SHIFT; } @@ -3631,7 +3631,7 @@ static int intel_nontranslate_map_sg(struct device *hddev, for_each_sg(sglist, sg, nelems, i) { BUG_ON(!sg_page(sg)); - sg->dma_address = page_to_phys(sg_page(sg)) + sg->offset; + sg->dma_address = sg_phys(sg); sg->dma_length = sg->length; } return nelems; diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index f286090931cc..049df495c274 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1408,7 +1408,7 @@ size_t default_iommu_map_sg(struct iommu_domain *domain, unsigned long iova, min_pagesz = 1 << __ffs(domain->ops->pgsize_bitmap); for_each_sg(sg, s, nents, i) { - phys_addr_t phys = page_to_phys(sg_page(s)) + s->offset; + phys_addr_t phys = sg_phys(s); /* * We are mapping on IOMMU page boundaries, so offset within |