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| author |   Kristoffer Glembo <kristoffer@gaisler.com> | 2011-01-18 04:10:25 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-03-16 18:18:57 -0700 |
| commit | b8682cefb861c61ced6ca2300a5ef96e91c6dbff (patch) | |
| tree | c7d5d90a535326d0b70be42943161d2e418719ec /arch/sparc/kernel/ioport.c | |
| parent | sparc: Replace open coded page alignment with PAGE_ALIGN macro. (diff) | |
| download | linux-dev-b8682cefb861c61ced6ca2300a5ef96e91c6dbff.tar.xz linux-dev-b8682cefb861c61ced6ca2300a5ef96e91c6dbff.zip | |
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/kernel/ioport.c')
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 8 |
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, |