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>
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index cea49c0..1b9f07c 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -524,6 +524,13 @@
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 @@
.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,