[PATCH 1/6] [POWERPC] create and use set_pci_dma_ops
Stephen Rothwell
sfr at canb.auug.org.au
Sun Mar 4 16:58:39 EST 2007
This will allow us to build without PCI easier.
Signed-off-by: Stephen Rothwell <sfr at canb.auug.org.au>
---
arch/powerpc/kernel/pci_64.c | 5 +++++
arch/powerpc/platforms/cell/iommu.c | 4 ++--
arch/powerpc/platforms/celleb/iommu.c | 2 +-
arch/powerpc/platforms/iseries/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/iommu.c | 4 ++--
arch/powerpc/platforms/pseries/iommu.c | 4 ++--
arch/powerpc/sysdev/dart_iommu.c | 4 ++--
include/asm-powerpc/pci.h | 6 +++++-
8 files changed, 20 insertions(+), 11 deletions(-)
--
Cheers,
Stephen Rothwell sfr at canb.auug.org.au
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 7e97d71..73d5093 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -70,6 +70,11 @@ int global_phb_number; /* Global phb counter */
struct pci_dev *ppc64_isabridge_dev = NULL;
EXPORT_SYMBOL_GPL(ppc64_isabridge_dev);
+void set_pci_dma_ops(struct dma_mapping_ops *dma_ops)
+{
+ pci_dma_ops = dma_ops;
+}
+
static void fixup_broken_pcnet32(struct pci_dev* dev)
{
if ((dev->class>>8 == PCI_CLASS_NETWORK_ETHERNET)) {
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 67d617b..d0e02ea 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -646,7 +646,7 @@ static int __init cell_iommu_init_disabled(void)
unsigned long base = 0, size;
/* When no iommu is present, we use direct DMA ops */
- pci_dma_ops = &dma_direct_ops;
+ set_pci_dma_ops(&dma_direct_ops);
/* First make sure all IOC translation is turned off */
cell_disable_iommus();
@@ -734,7 +734,7 @@ static int __init cell_iommu_init(void)
}
/* Setup default PCI iommu ops */
- pci_dma_ops = &dma_iommu_ops;
+ set_pci_dma_ops(&dma_iommu_ops);
bail:
/* Register callbacks on OF platform device addition/removal
diff --git a/arch/powerpc/platforms/celleb/iommu.c b/arch/powerpc/platforms/celleb/iommu.c
index f63b94c..fecc4ff 100644
--- a/arch/powerpc/platforms/celleb/iommu.c
+++ b/arch/powerpc/platforms/celleb/iommu.c
@@ -95,7 +95,7 @@ static int __init celleb_init_iommu(void)
return -ENODEV;
celleb_init_direct_mapping();
- pci_dma_ops = &dma_direct_ops;
+ set_pci_dma_ops(&dma_direct_ops);
bus_register_notifier(&of_platform_bus_type, &celleb_of_bus_notifier);
return 0;
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index d7a756d..7df2902 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -194,5 +194,5 @@ void iommu_init_early_iSeries(void)
ppc_md.tce_build = tce_build_iSeries;
ppc_md.tce_free = tce_free_iSeries;
- pci_dma_ops = &dma_iommu_ops;
+ set_pci_dma_ops(&dma_iommu_ops);
}
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 459a53b..4587c1d 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -255,7 +255,7 @@ void iommu_init_early_pasemi(void)
/* Direct I/O, IOMMU off */
ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_null;
ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_null;
- pci_dma_ops = &dma_direct_ops;
+ set_pci_dma_ops(&dma_direct_ops);
return;
}
@@ -266,7 +266,7 @@ void iommu_init_early_pasemi(void)
ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_pasemi;
ppc_md.tce_build = iobmap_build;
ppc_md.tce_free = iobmap_free;
- pci_dma_ops = &dma_iommu_ops;
+ set_pci_dma_ops(&dma_iommu_ops);
}
void __init alloc_iobmap_l2(void)
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index e6653a8..9322f74 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -562,7 +562,7 @@ void iommu_init_early_pSeries(void)
/* Direct I/O, IOMMU off */
ppc_md.pci_dma_dev_setup = NULL;
ppc_md.pci_dma_bus_setup = NULL;
- pci_dma_ops = &dma_direct_ops;
+ set_pci_dma_ops(&dma_direct_ops);
return;
}
@@ -588,6 +588,6 @@ void iommu_init_early_pSeries(void)
pSeries_reconfig_notifier_register(&iommu_reconfig_nb);
- pci_dma_ops = &dma_iommu_ops;
+ set_pci_dma_ops(&dma_iommu_ops);
}
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 1488535..336186d 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -333,7 +333,7 @@ void iommu_init_early_dart(void)
ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_dart;
/* Setup pci_dma ops */
- pci_dma_ops = &dma_iommu_ops;
+ set_pci_dma_ops(&dma_iommu_ops);
return;
}
@@ -343,7 +343,7 @@ void iommu_init_early_dart(void)
ppc_md.pci_dma_bus_setup = NULL;
/* Setup pci_dma ops */
- pci_dma_ops = &dma_direct_ops;
+ set_pci_dma_ops(&dma_direct_ops);
}
diff --git a/include/asm-powerpc/pci.h b/include/asm-powerpc/pci.h
index ac656ee..ebf31f1 100644
--- a/include/asm-powerpc/pci.h
+++ b/include/asm-powerpc/pci.h
@@ -70,8 +70,11 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
*/
#define PCI_DISABLE_MWI
+#ifdef CONFIG_PCI
extern struct dma_mapping_ops *pci_dma_ops;
+extern void set_pci_dma_ops(struct dma_mapping_ops *dma_ops);
+
/* For DAC DMA, we currently don't support it by default, but
* we let 64-bit platforms override this.
*/
@@ -82,7 +85,6 @@ static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask)
return 0;
}
-#ifdef CONFIG_PCI
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
enum pci_dma_burst_strategy *strat,
unsigned long *strategy_parameter)
@@ -99,6 +101,8 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
*strat = PCI_DMA_BURST_MULTIPLE;
*strategy_parameter = cacheline_size;
}
+#else /* CONFIG_PCI */
+#define set_pci_dma_ops(d)
#endif
extern int pci_domain_nr(struct pci_bus *bus);
--
1.5.0.1
More information about the Linuxppc-dev
mailing list