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| author | Glauber Costa <gcosta@redhat.com> | 2008-04-08 13:20:43 -0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-19 19:19:57 +0200 |
| commit | 459121c9ec1e6c5d701f6520f4170719ac008951 (patch) | |
| tree | 5b0fd3dbc761647e8da7a2be103c797cce0a8621 /arch/x86/kernel/pci-dma.c | |
| parent | 19e395afb44746ce7422a9eabcf883d5eec2bb80 (diff) | |
| download | linux-459121c9ec1e6c5d701f6520f4170719ac008951.tar.gz linux-459121c9ec1e6c5d701f6520f4170719ac008951.tar.bz2 linux-459121c9ec1e6c5d701f6520f4170719ac008951.zip | |
x86: introduce pci-dma.c
This patch introduces pci-dma.c, a common file for pci dma
between i386 and x86_64. As a start, dma_set_mask() is the same
between architectures, and is placed there.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/pci-dma.c')
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c new file mode 100644 index 000000000000..f1c24d8e7942 --- /dev/null +++ b/arch/x86/kernel/pci-dma.c @@ -0,0 +1,14 @@ +#include <linux/dma-mapping.h> + +int dma_set_mask(struct device *dev, u64 mask) +{ + if (!dev->dma_mask || !dma_supported(dev, mask)) + return -EIO; + + *dev->dma_mask = mask; + + return 0; +} +EXPORT_SYMBOL(dma_set_mask); + + |