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Diffstat (limited to 'arch/x86/kernel/pci-gart_64.c')
-rw-r--r--arch/x86/kernel/pci-gart_64.c34
1 files changed, 19 insertions, 15 deletions
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index d5768b1af080..b284b58c035c 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -255,10 +255,13 @@ static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem,
}
/* Map a single area into the IOMMU */
-static dma_addr_t
-gart_map_single(struct device *dev, phys_addr_t paddr, size_t size, int dir)
+static dma_addr_t gart_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
unsigned long bus;
+ phys_addr_t paddr = page_to_phys(page) + offset;
if (!dev)
dev = &x86_dma_fallback_dev;
@@ -275,8 +278,9 @@ gart_map_single(struct device *dev, phys_addr_t paddr, size_t size, int dir)
/*
* Free a DMA mapping.
*/
-static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
- size_t size, int direction)
+static void gart_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
unsigned long iommu_page;
int npages;
@@ -298,8 +302,8 @@ static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr,
/*
* Wrapper for pci_unmap_single working with scatterlists.
*/
-static void
-gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
struct scatterlist *s;
int i;
@@ -307,7 +311,7 @@ gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
for_each_sg(sg, s, nents, i) {
if (!s->dma_length || !s->length)
break;
- gart_unmap_single(dev, s->dma_address, s->dma_length, dir);
+ gart_unmap_page(dev, s->dma_address, s->dma_length, dir, NULL);
}
}
@@ -329,7 +333,7 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg,
addr = dma_map_area(dev, addr, s->length, dir, 0);
if (addr == bad_dma_address) {
if (i > 0)
- gart_unmap_sg(dev, sg, i, dir);
+ gart_unmap_sg(dev, sg, i, dir, NULL);
nents = 0;
sg[0].dma_length = 0;
break;
@@ -400,8 +404,8 @@ dma_map_cont(struct device *dev, struct scatterlist *start, int nelems,
* DMA map all entries in a scatterlist.
* Merge chunks that have page aligned sizes into a continuous mapping.
*/
-static int
-gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
struct scatterlist *s, *ps, *start_sg, *sgmap;
int need = 0, nextneed, i, out, start;
@@ -468,7 +472,7 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
error:
flush_gart();
- gart_unmap_sg(dev, sg, out, dir);
+ gart_unmap_sg(dev, sg, out, dir, NULL);
/* When it was forced or merged try again in a dumb way */
if (force_iommu || iommu_merge) {
@@ -521,7 +525,7 @@ static void
gart_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_addr)
{
- gart_unmap_single(dev, dma_addr, size, DMA_BIDIRECTIONAL);
+ gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, NULL);
free_pages((unsigned long)vaddr, get_order(size));
}
@@ -707,11 +711,11 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
return -1;
}
-static struct dma_mapping_ops gart_dma_ops = {
- .map_single = gart_map_single,
- .unmap_single = gart_unmap_single,
+static struct dma_map_ops gart_dma_ops = {
.map_sg = gart_map_sg,
.unmap_sg = gart_unmap_sg,
+ .map_page = gart_map_page,
+ .unmap_page = gart_unmap_page,
.alloc_coherent = gart_alloc_coherent,
.free_coherent = gart_free_coherent,
};