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| author | Nishanth Aravamudan <nacc@us.ibm.com> | 2010-10-18 11:27:00 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-11-29 07:48:20 +0300 |
| commit | 2f9c9be2ff31670c942572cf96eb6c696362b584 (patch) | |
| tree | 0fc6fc9d9d0ddb0d4e8fa75fabb654cd12069737 | |
| parent | 6d283d782f9fbafee5c672bfdaff4c10f6fdc788 (diff) | |
| download | linux-2f9c9be2ff31670c942572cf96eb6c696362b584.tar.xz | |
powerpc/pasemi: Clean up pasemi iommu table initializations
No need for empty helpers with iommu off, the ppc_md hooks are optional.
The direct_dma_ops are the default pci_dma_ops, so no need to set in the
them iommu off case.
No need to set the device tree device_node pci node iommu pointer, its
only used for dlpar remove.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/platforms/pasemi/iommu.c | 19 |
1 files changed, 1 insertions, 18 deletions
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c index 1f9fb2c57761..14943ef01918 100644 --- a/arch/powerpc/platforms/pasemi/iommu.c +++ b/arch/powerpc/platforms/pasemi/iommu.c @@ -156,20 +156,12 @@ static void iommu_table_iobmap_setup(void) static void pci_dma_bus_setup_pasemi(struct pci_bus *bus) { - struct device_node *dn; - pr_debug("pci_dma_bus_setup, bus %p, bus->self %p\n", bus, bus->self); if (!iommu_table_iobmap_inited) { iommu_table_iobmap_inited = 1; iommu_table_iobmap_setup(); } - - dn = pci_bus_to_OF_node(bus); - - if (dn) - PCI_DN(dn)->iommu_table = &iommu_table_iobmap; - } @@ -192,9 +184,6 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev) set_iommu_table_base(&dev->dev, &iommu_table_iobmap); } -static void pci_dma_bus_setup_null(struct pci_bus *b) { } -static void pci_dma_dev_setup_null(struct pci_dev *d) { } - int __init iob_init(struct device_node *dn) { unsigned long tmp; @@ -251,14 +240,8 @@ void __init iommu_init_early_pasemi(void) iommu_off = of_chosen && of_get_property(of_chosen, "linux,iommu-off", NULL); #endif - if (iommu_off) { - /* 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; - set_pci_dma_ops(&dma_direct_ops); - + if (iommu_off) return; - } iob_init(NULL); |