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authorJohn Keller <jpk@sgi.com>2008-11-24 16:47:17 -0600
committerTony Luck <tony.luck@intel.com>2009-01-15 10:42:16 -0800
commit175add1981e53d22caba8f42d5f924a4de507b6c (patch)
tree71ddbf7f46d18222f4f5867d7261b335677c6af6 /arch/ia64/sn
parenta6a3bb5c88d706c5efe0c86b3b669ac9ee012b3f (diff)
[IA64] SN specific version of dma_get_required_mask()
Create a platform specific version of dma_get_required_mask() for ia64 SN Altix. All SN Altix platforms support 64 bit DMA addressing regardless of the size of system memory. Create an ia64 machvec for dma_get_required_mask, with the SN version unconditionally returning DMA_64BIT_MASK. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/sn')
-rw-r--r--arch/ia64/sn/pci/pci_dma.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index 53ebb648449..863f5017baa 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -356,6 +356,12 @@ int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
}
EXPORT_SYMBOL(sn_dma_mapping_error);
+u64 sn_dma_get_required_mask(struct device *dev)
+{
+ return DMA_64BIT_MASK;
+}
+EXPORT_SYMBOL_GPL(sn_dma_get_required_mask);
+
char *sn_pci_get_legacy_mem(struct pci_bus *bus)
{
if (!SN_PCIBUS_BUSSOFT(bus))