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authorGlauber Costa <gcosta@redhat.com>2008-04-08 13:20:53 -0300
committerIngo Molnar <mingo@elte.hu>2008-04-19 19:19:57 +0200
commitbca5c09663030bdd18ab1b3ccb6671f663c3345a (patch)
treea98960da8eb60964dda190e6df6ef890c64147eb /arch/x86
parent116890d556af38d539597655c564a73e6eef3d9e (diff)
downloadop-kernel-dev-bca5c09663030bdd18ab1b3ccb6671f663c3345a.zip
op-kernel-dev-bca5c09663030bdd18ab1b3ccb6671f663c3345a.tar.gz
x86: move pci fixup to pci-dma.c
via_no_dac provides a fixup that is the same for both architectures. Move it to pci-dma.c. 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/pci-dma.c18
-rw-r--r--arch/x86/kernel/pci-dma_32.c13
-rw-r--r--arch/x86/kernel/pci-dma_64.c15
3 files changed, 18 insertions, 28 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 9144336..48cccbe 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -1,12 +1,16 @@
#include <linux/dma-mapping.h>
#include <linux/dmar.h>
#include <linux/bootmem.h>
+#include <linux/pci.h>
#include <asm/proto.h>
#include <asm/dma.h>
#include <asm/gart.h>
#include <asm/calgary.h>
+int forbid_dac __read_mostly;
+EXPORT_SYMBOL(forbid_dac);
+
const struct dma_mapping_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
@@ -121,3 +125,17 @@ void pci_iommu_shutdown(void)
}
/* Must execute after PCI subsystem */
fs_initcall(pci_iommu_init);
+
+#ifdef CONFIG_PCI
+/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
+
+static __devinit void via_no_dac(struct pci_dev *dev)
+{
+ if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
+ printk(KERN_INFO "PCI: VIA PCI bridge detected."
+ "Disabling DAC.\n");
+ forbid_dac = 1;
+ }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
+#endif
diff --git a/arch/x86/kernel/pci-dma_32.c b/arch/x86/kernel/pci-dma_32.c
index 9e82976..6543bb3 100644
--- a/arch/x86/kernel/pci-dma_32.c
+++ b/arch/x86/kernel/pci-dma_32.c
@@ -157,9 +157,6 @@ EXPORT_SYMBOL(dma_mark_declared_memory_occupied);
#ifdef CONFIG_PCI
/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
-int forbid_dac;
-EXPORT_SYMBOL(forbid_dac);
-
int
dma_supported(struct device *dev, u64 mask)
{
@@ -182,16 +179,6 @@ dma_supported(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_supported);
-
-static __devinit void via_no_dac(struct pci_dev *dev)
-{
- if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
- printk(KERN_INFO "PCI: VIA PCI bridge detected. Disabling DAC.\n");
- forbid_dac = 1;
- }
-}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
-
static int check_iommu(char *s)
{
if (!strcmp(s, "usedac")) {
diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index 6b204cc..7820675 100644
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -161,8 +161,6 @@ void dma_free_coherent(struct device *dev, size_t size,
}
EXPORT_SYMBOL(dma_free_coherent);
-static int forbid_dac __read_mostly;
-
int dma_supported(struct device *dev, u64 mask)
{
#ifdef CONFIG_PCI
@@ -270,16 +268,3 @@ static __init int iommu_setup(char *p)
return 0;
}
early_param("iommu", iommu_setup);
-
-#ifdef CONFIG_PCI
-/* Many VIA bridges seem to corrupt data for DAC. Disable it here */
-
-static __devinit void via_no_dac(struct pci_dev *dev)
-{
- if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
- printk(KERN_INFO "PCI: VIA PCI bridge detected. Disabling DAC.\n");
- forbid_dac = 1;
- }
-}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
-#endif
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