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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 /arch/alpha | |
| 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 'arch/alpha')
| -rw-r--r-- | arch/alpha/include/asm/pci.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h index b9ec55351924..cf6bc1e64d66 100644 --- a/arch/alpha/include/asm/pci.h +++ b/arch/alpha/include/asm/pci.h @@ -56,11 +56,6 @@ struct pci_controller { /* IOMMU controls. */ -/* The PCI address space does not equal the physical memory address space. - The networking and block device layers use this boolean for bounce buffer - decisions. */ -#define PCI_DMA_BUS_IS_PHYS 0 - /* TODO: integrate with include/asm-generic/pci.h ? */ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) { |