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| author | Christoph Hellwig <hch@lst.de> | 2019-02-13 08:01:15 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-02-18 22:41:03 +1100 |
| commit | ffe3dfd4e3598651a87651f3d59f144ee31f60fb (patch) | |
| tree | c59499138eefbd31a9837819e27c60e068fee2d5 /arch/powerpc/kernel/dma.c | |
| parent | 2d6ad41b2c210667b803585b62f9c1943bf02c91 (diff) | |
| download | linux-ffe3dfd4e3598651a87651f3d59f144ee31f60fb.tar.gz linux-ffe3dfd4e3598651a87651f3d59f144ee31f60fb.tar.bz2 linux-ffe3dfd4e3598651a87651f3d59f144ee31f60fb.zip | |
powerpc/dma: stop overriding dma_get_required_mask
The ppc_md and pci_controller_ops methods are unused now and can be
removed. The dma_nommu implementation is generic to the generic one
except for using max_pfn instead of calling into the memblock API,
and all other dma_map_ops instances implement a method of their own.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/dma.c')
| -rw-r--r-- | arch/powerpc/kernel/dma.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index e5db4d3f8bea..0d52107b90f0 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -318,35 +318,6 @@ int dma_set_mask(struct device *dev, u64 dma_mask) } EXPORT_SYMBOL(dma_set_mask); -u64 __dma_get_required_mask(struct device *dev) -{ - const struct dma_map_ops *dma_ops = get_dma_ops(dev); - - if (unlikely(dma_ops == NULL)) - return 0; - - if (dma_ops->get_required_mask) - return dma_ops->get_required_mask(dev); - - return DMA_BIT_MASK(8 * sizeof(dma_addr_t)); -} - -u64 dma_get_required_mask(struct device *dev) -{ - if (ppc_md.dma_get_required_mask) - return ppc_md.dma_get_required_mask(dev); - - if (dev_is_pci(dev)) { - struct pci_dev *pdev = to_pci_dev(dev); - struct pci_controller *phb = pci_bus_to_host(pdev->bus); - if (phb->controller_ops.dma_get_required_mask) - return phb->controller_ops.dma_get_required_mask(pdev); - } - - return __dma_get_required_mask(dev); -} -EXPORT_SYMBOL_GPL(dma_get_required_mask); - static int __init dma_init(void) { #ifdef CONFIG_IBMVIO |