Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 3/7] x86: add free_coherent dma_ops callback to Calgary IOMMU driver | Date | Tue, 12 Aug 2008 17:24:13 +0200 |
| |
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> --- arch/x86/kernel/pci-calgary_64.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index b24f1e8..6b67446 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -510,8 +510,22 @@ error: return ret; } +static void calgary_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle) +{ + unsigned int npages; + struct iommu_table *tbl = find_iommu_table(dev); + + size = PAGE_ALIGN(size); + npages = size >> PAGE_SHIFT; + + iommu_free(tbl, dma_handle, npages); + free_pages((unsigned long)vaddr, get_order(size)); +} + static struct dma_mapping_ops calgary_dma_ops = { .alloc_coherent = calgary_alloc_coherent, + .free_coherent = calgary_free_coherent, .map_single = calgary_map_single, .unmap_single = calgary_unmap_single, .map_sg = calgary_map_sg, -- 1.5.3.7
| |