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| author | Christoph Hellwig <hch@lst.de> | 2018-04-12 09:33:30 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-05-07 07:15:41 +0200 |
| commit | 325ef1857fff8b2049322921e19421b6c5ad74e5 (patch) | |
| tree | d4f0dc35d4e37e18c432e76292e3a453462dd02e /include/asm-generic/pci.h | |
| parent | ab74cfebafa3b71caa1e82793032b4867dcf5ea6 (diff) | |
| download | linux-325ef1857fff8b2049322921e19421b6c5ad74e5.tar.bz2 | |
PCI: remove PCI_DMA_BUS_IS_PHYS
This was used by the ide, scsi and networking code in the past to
determine if they should bounce payloads. Now that the dma mapping
always have to support dma to all physical memory (thanks to swiotlb
for non-iommu systems) there is no need to this crude hack any more.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Palmer Dabbelt <palmer@sifive.com> (for riscv)
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/asm-generic/pci.h')
| -rw-r--r-- | include/asm-generic/pci.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h index 830d7659289b..6bb3cd3d695a 100644 --- a/include/asm-generic/pci.h +++ b/include/asm-generic/pci.h @@ -14,12 +14,4 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) } #endif /* HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ */ -/* - * By default, assume that no iommu is in use and that the PCI - * space is mapped to address physical 0. - */ -#ifndef PCI_DMA_BUS_IS_PHYS -#define PCI_DMA_BUS_IS_PHYS (1) -#endif - #endif /* _ASM_GENERIC_PCI_H */ |