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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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3
arch/powerpc/platforms/cell/iommu.c
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@@ -600,8 +600,6 @@ static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action,
if (cell_iommu_enabled)
dev->dma_ops = &dma_iommu_ops;
else
dev->dma_ops = &dma_nommu_ops;
cell_dma_dev_setup(dev);
return 0;
}
@@ -727,7 +725,6 @@ static int __init cell_iommu_init_disabled(void)
unsigned long base = 0, size;
/* When no iommu is present, we use direct DMA ops */
set_pci_dma_ops(&dma_nommu_ops);
/* First make sure all IOC translation is turned off */
cell_disable_iommus();