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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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356da6d0cd
Avoid expensive indirect calls in the fast path DMA mapping operations by directly calling the dma_direct_* ops if we are using the directly mapped DMA operations. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Tested-by: Jesper Dangaard Brouer <brouer@redhat.com> Tested-by: Tony Luck <tony.luck@intel.com>
17 lines
342 B
C
17 lines
342 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ALPHA_DMA_MAPPING_H
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#define _ALPHA_DMA_MAPPING_H
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extern const struct dma_map_ops alpha_pci_ops;
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static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
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{
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#ifdef CONFIG_ALPHA_JENSEN
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return NULL;
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#else
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return &alpha_pci_ops;
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#endif
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}
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#endif /* _ALPHA_DMA_MAPPING_H */
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