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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/s390 | |
| 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/s390')
| -rw-r--r-- | arch/s390/include/asm/pci.h | 2 | ||||
| -rw-r--r-- | arch/s390/pci/pci_dma.c | 2 |
2 files changed, 0 insertions, 4 deletions
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 12fe3591034f..94f8db468c9b 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -2,8 +2,6 @@ #ifndef __ASM_S390_PCI_H #define __ASM_S390_PCI_H -/* must be set before including asm-generic/pci.h */ -#define PCI_DMA_BUS_IS_PHYS (0) /* must be set before including pci_clp.h */ #define PCI_BAR_COUNT 6 diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c index 2d15d84c20ed..10abf5ed6187 100644 --- a/arch/s390/pci/pci_dma.c +++ b/arch/s390/pci/pci_dma.c @@ -685,8 +685,6 @@ const struct dma_map_ops s390_pci_dma_ops = { .map_page = s390_dma_map_pages, .unmap_page = s390_dma_unmap_pages, .mapping_error = s390_mapping_error, - /* if we support direct DMA this must be conditional */ - .is_phys = 0, /* dma_supported is unconditionally true without a callback */ }; EXPORT_SYMBOL_GPL(s390_pci_dma_ops); |