diff options
| author | David Howells <dhowells@redhat.com> | 2008-10-15 16:50:53 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 15:06:54 -0700 |
| commit | c9af956cf7548bc352557eb8356913e489fd8716 (patch) | |
| tree | 57b06fb473014e621d678687da2b9dfd0d92a43d /arch/frv/mb93090-mb00/pci-dma.c | |
| parent | 9bd8f9c638c51313328d664a2f7a5e413cfd9044 (diff) | |
FRV: Provide dma_map_page() for NOMMU and fix comments
Provide dma_map_page() for the NOMMU-mode FRV arch.
Also do some fixing on the comments attached to the various DMA functions for
both MMU and NOMMU mode FRV code.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/frv/mb93090-mb00/pci-dma.c')
| -rw-r--r-- | arch/frv/mb93090-mb00/pci-dma.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c index 662f7b12d00..3ddedebc4eb 100644 --- a/arch/frv/mb93090-mb00/pci-dma.c +++ b/arch/frv/mb93090-mb00/pci-dma.c @@ -61,7 +61,7 @@ EXPORT_SYMBOL(dma_map_single); /* * 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 + * above dma_map_single interface. Here the scatter gather list * elements are each tagged with the appropriate dma address * and length. They are obtained via sg_dma_{address,length}(SG). * @@ -71,7 +71,7 @@ EXPORT_SYMBOL(dma_map_single); * The routine returns the number of addr/length pairs actually * used, at most nents. * - * Device ownership issues as mentioned above for pci_map_single are + * Device ownership issues as mentioned above for dma_map_single are * the same here. */ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, @@ -105,6 +105,13 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, EXPORT_SYMBOL(dma_map_sg); +/* + * Map a single page of the indicated size for DMA in streaming mode. + * The 32-bit bus address to use is returned. + * + * Device ownership issues as mentioned above for dma_map_single are + * the same here. + */ dma_addr_t dma_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction direction) { |