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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2015-06-24 15:25:27 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-07-13 10:10:55 +1000 |
| commit | e91c25111aa373af7439d97ab0e606bcffd599ef (patch) | |
| tree | f8eba1cd404beeffa81c2df91485a141f6ea9441 /arch/powerpc/sysdev | |
| parent | 2db4928bb559f8b43ca75879548111dc13a7de31 (diff) | |
| download | linux-stable-e91c25111aa373af7439d97ab0e606bcffd599ef.tar.gz linux-stable-e91c25111aa373af7439d97ab0e606bcffd599ef.tar.bz2 linux-stable-e91c25111aa373af7439d97ab0e606bcffd599ef.zip | |
powerpc/iommu: Cleanup setting of DMA base/offset
Now that the table and the offset can co-exist, we no longer need
to flip/flop, we can just establish both once at boot time.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/dart_iommu.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index 90bcdfeedf48..b7348637eae0 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -313,20 +313,11 @@ static void iommu_table_dart_setup(void) set_bit(iommu_table_dart.it_size - 1, iommu_table_dart.it_map); } -static void dma_dev_setup_dart(struct device *dev) -{ - /* We only have one iommu table on the mac for now, which makes - * things simple. Setup all PCI devices to point to this table - */ - if (get_dma_ops(dev) == &dma_direct_ops) - set_dma_offset(dev, DART_U4_BYPASS_BASE); - else - set_iommu_table_base(dev, &iommu_table_dart); -} - static void pci_dma_dev_setup_dart(struct pci_dev *dev) { - dma_dev_setup_dart(&dev->dev); + if (dart_is_u4) + set_dma_offset(&dev->dev, DART_U4_BYPASS_BASE); + set_iommu_table_base(&dev->dev, &iommu_table_dart); } static void pci_dma_bus_setup_dart(struct pci_bus *bus) @@ -370,7 +361,6 @@ static int dart_dma_set_mask(struct device *dev, u64 dma_mask) dev_info(dev, "Using 32-bit DMA via iommu\n"); set_dma_ops(dev, &dma_iommu_ops); } - dma_dev_setup_dart(dev); *dev->dma_mask = dma_mask; return 0; |