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authorBecky Bruce <becky.bruce@freescale.com>2008-09-12 10:34:46 +0000
committerKumar Gala <galak@kernel.crashing.org>2008-09-24 16:26:45 -0500
commit4fc665b88a79a45bae8bbf3a05563c27c7337c3d (patch)
treeca668c2fab7c3a4d62b92174f4a5fcae2625cdd1 /arch/powerpc/kernel/pci_32.c
parent8fae0353247530d2124b2419052fa6120462fa99 (diff)
powerpc: Merge 32 and 64-bit dma code
We essentially adopt the 64-bit dma code, with some changes to support 32-bit systems, including HIGHMEM. dma functions on 32-bit are now invoked via accessor functions which call the correct op for a device based on archdata dma_ops. If there is no archdata dma_ops, this defaults to dma_direct_ops. In addition, the dma_map/unmap_page functions are added to dma_ops because we can't just fall back on map/unmap_single when HIGHMEM is enabled. In the case of dma_direct_*, we stop using map/unmap_single and just use the page version - this saves a lot of ugly ifdeffing. We leave map/unmap_single in the dma_ops definition, though, because they are needed by the iommu code, which does not implement map/unmap_page. Ideally, going forward, we will completely eliminate map/unmap_single and just have map/unmap_page, if it's workable for 64-bit. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/pci_32.c')
-rw-r--r--arch/powerpc/kernel/pci_32.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 88db4ffaf11c..174b77ee18ff 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -424,6 +424,7 @@ void __devinit pcibios_do_bus_setup(struct pci_bus *bus)
unsigned long io_offset;
struct resource *res;
int i;
+ struct pci_dev *dev;
/* Hookup PHB resources */
io_offset = (unsigned long)hose->io_base_virt - isa_io_base;
@@ -457,6 +458,12 @@ void __devinit pcibios_do_bus_setup(struct pci_bus *bus)
bus->resource[i+1] = res;
}
}
+
+ if (ppc_md.pci_dma_bus_setup)
+ ppc_md.pci_dma_bus_setup(bus);
+
+ list_for_each_entry(dev, &bus->devices, bus_list)
+ pcibios_setup_new_device(dev);
}
/* the next one is stolen from the alpha port... */