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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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5
arch/powerpc/sysdev/fsl_pci.c
View file

@ -124,10 +124,8 @@ static void pci_dma_dev_setup_swiotlb(struct pci_dev *pdev)
static void setup_swiotlb_ops(struct pci_controller *hose)
{
if (ppc_swiotlb_enable) {
if (ppc_swiotlb_enable)
hose->controller_ops.dma_dev_setup = pci_dma_dev_setup_swiotlb;
set_pci_dma_ops(&powerpc_swiotlb_dma_ops);
}
}
#else
static inline void setup_swiotlb_ops(struct pci_controller *hose) {}
@ -141,7 +139,6 @@ static void fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
*/
if (dev_is_pci(dev) && dma_mask >= pci64_dma_offset * 2 - 1) {
dev->bus_dma_mask = 0;
set_dma_ops(dev, &dma_nommu_ops);
set_dma_offset(dev, pci64_dma_offset);
}
}