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powerpc/dma: use the generic direct mapping bypass

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Now that we've switched all the powerpc nommu and swiotlb methods to
use the generic dma_direct_* calls we can remove these ops vectors
entirely and rely on the common direct mapping bypass that avoids
indirect function calls entirely.  This also allows to remove a whole
lot of boilerplate code related to setting up these operations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christoph Hellwig
2019-02-13 08:01:30 +01:00
committed by Michael Ellerman
parent 461db2bdbf
commit 68005b67d1
25 changed files with 16 additions and 222 deletions
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arch/powerpc/platforms/pasemi/iommu.c
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@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
*/
if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
!firmware_has_feature(FW_FEATURE_LPAR)) {
dev->dev.dma_ops = &dma_nommu_ops;
dev->dev.dma_ops = NULL;
/*
* Set the coherent DMA mask to prevent the iommu
* being used unnecessarily