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>
29 lines
636 B
C
29 lines
636 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_DMA_MAPPING_H
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#define _ASM_DMA_MAPPING_H
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#include <linux/swiotlb.h>
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extern const struct dma_map_ops jazz_dma_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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#if defined(CONFIG_MACH_JAZZ)
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return &jazz_dma_ops;
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#else
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return NULL;
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#endif
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}
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#define arch_setup_dma_ops arch_setup_dma_ops
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static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
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u64 size, const struct iommu_ops *iommu,
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bool coherent)
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{
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#ifdef CONFIG_DMA_PERDEV_COHERENT
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dev->dma_coherent = coherent;
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#endif
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}
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#endif /* _ASM_DMA_MAPPING_H */
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