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authorKristoffer Glembo <kristoffer@gaisler.com>2011-01-18 07:10:25 +0300
committerDavid S. Miller <davem@davemloft.net>2011-03-17 04:18:57 +0300
commitb8682cefb861c61ced6ca2300a5ef96e91c6dbff (patch)
treec7d5d90a535326d0b70be42943161d2e418719ec /arch/sparc
parent5c8345bbe8e7cfd5bfa59f0e1fcef2e12a28e430 (diff)
downloadlinux-b8682cefb861c61ced6ca2300a5ef96e91c6dbff.tar.xz
sparc: Add pci32_unmap_page.
Signed-off-by: Kristoffer Glembo <kristoffer@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/ioport.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index cea49c0756d2..1b9f07c07640 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -524,6 +524,13 @@ static dma_addr_t pci32_map_page(struct device *dev, struct page *page,
return page_to_phys(page) + offset;
}
+static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size,
+ enum dma_data_direction dir, struct dma_attrs *attrs)
+{
+ if (dir != PCI_DMA_TODEVICE)
+ mmu_inval_dma_area((unsigned long)phys_to_virt(ba), PAGE_ALIGN(size));
+}
+
/* Map a set of buffers described by scatterlist in streaming
* mode for DMA. This is the scather-gather version of the
* above pci_map_single interface. Here the scatter gather list
@@ -646,6 +653,7 @@ struct dma_map_ops pci32_dma_ops = {
.alloc_coherent = pci32_alloc_coherent,
.free_coherent = pci32_free_coherent,
.map_page = pci32_map_page,
+ .unmap_page = pci32_unmap_page,
.map_sg = pci32_map_sg,
.unmap_sg = pci32_unmap_sg,
.sync_single_for_cpu = pci32_sync_single_for_cpu,