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| author | Christoph Hellwig <hch@lst.de> | 2018-05-28 12:47:57 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-05-28 12:48:25 +0200 |
| commit | 0ead51c3fbd15a4bc91e984f1b18b5c9422fbb02 (patch) | |
| tree | ad7bf76bbc559ce3fa320ae03ce562e286d2ddc4 /include/linux/dma-mapping.h | |
| parent | 098afd981744061d37eb4d40bc3f755438570afb (diff) | |
| download | linux-0ead51c3fbd15a4bc91e984f1b18b5c9422fbb02.tar.gz linux-0ead51c3fbd15a4bc91e984f1b18b5c9422fbb02.tar.bz2 linux-0ead51c3fbd15a4bc91e984f1b18b5c9422fbb02.zip | |
x86/pci-dma: switch the VIA 32-bit DMA quirk to use the struct device flag
Instead of globally disabling > 32bit DMA using the arch_dma_supported
hook walk the PCI bus under the actually affected bridge and mark every
device with the dma_32bit_limit flag. This also gets rid of the
arch_dma_supported hook entirely.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/dma-mapping.h')
| -rw-r--r-- | include/linux/dma-mapping.h | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 15e4b4e9cc20..f9cc309507d9 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -572,14 +572,6 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return 0; } -/* - * This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please - * don't use this in new code. - */ -#ifndef arch_dma_supported -#define arch_dma_supported(dev, mask) (1) -#endif - static inline void dma_check_mask(struct device *dev, u64 mask) { if (sme_active() && (mask < (((u64)sme_get_me_mask() << 1) - 1))) @@ -592,9 +584,6 @@ static inline int dma_supported(struct device *dev, u64 mask) if (!ops) return 0; - if (!arch_dma_supported(dev, mask)) - return 0; - if (!ops->dma_supported) return 1; return ops->dma_supported(dev, mask); |