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authorGlauber Costa <gcosta@redhat.com>2008-04-08 13:20:43 -0300
committerIngo Molnar <mingo@elte.hu>2008-04-19 19:19:57 +0200
commit459121c9ec1e6c5d701f6520f4170719ac008951 (patch)
tree5b0fd3dbc761647e8da7a2be103c797cce0a8621 /arch/x86
parent19e395afb44746ce7422a9eabcf883d5eec2bb80 (diff)
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')
-rw-r--r--arch/x86/kernel/Makefile2
-rw-r--r--arch/x86/kernel/pci-dma.c14
-rw-r--r--arch/x86/kernel/pci-dma_32.c12
-rw-r--r--arch/x86/kernel/pci-dma_64.c9
4 files changed, 15 insertions, 22 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index edd5c54ffde..1799f76a6a9 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -23,7 +23,7 @@ obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
obj-$(CONFIG_X86_64) += syscall_64.o vsyscall_64.o setup64.o
obj-y += pci-dma_$(BITS).o bootflag.o e820_$(BITS).o
-obj-y += quirks.o i8237.o topology.o kdebugfs.o
+obj-y += pci-dma.o quirks.o i8237.o topology.o kdebugfs.o
obj-y += alternative.o i8253.o
obj-$(CONFIG_X86_64) += pci-nommu_64.o bugs_64.o
obj-$(CONFIG_X86_32) += pci-base_32.o
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
new file mode 100644
index 00000000000..f1c24d8e794
--- /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);
+
+
diff --git a/arch/x86/kernel/pci-dma_32.c b/arch/x86/kernel/pci-dma_32.c
index be6b1f6aa1a..9e8297657c3 100644
--- a/arch/x86/kernel/pci-dma_32.c
+++ b/arch/x86/kernel/pci-dma_32.c
@@ -182,18 +182,6 @@ dma_supported(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_supported);
-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);
-
static __devinit void via_no_dac(struct pci_dev *dev)
{
diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index f97a08d0a8f..e697b865c1a 100644
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -213,15 +213,6 @@ int dma_supported(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_supported);
-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);
-
/*
* See <Documentation/x86_64/boot-options.txt> for the iommu kernel parameter
* documentation.