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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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bc3ec75de5
All the cache maintainance is already stubbed out when not enabled, but merging the two allows us to nicely handle the case where cache maintainance is required for some devices, but not others. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Paul Burton <paul.burton@mips.com> # MIPS parts
27 lines
587 B
C
27 lines
587 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef ___ASM_SPARC_DMA_MAPPING_H
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#define ___ASM_SPARC_DMA_MAPPING_H
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#include <linux/scatterlist.h>
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#include <linux/mm.h>
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#include <linux/dma-debug.h>
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extern const struct dma_map_ops *dma_ops;
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extern struct bus_type pci_bus_type;
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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_SPARC_LEON
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if (sparc_cpu_model == sparc_leon)
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return &dma_direct_ops;
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#endif
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#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
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if (bus == &pci_bus_type)
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return &dma_direct_ops;
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#endif
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return dma_ops;
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}
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#endif
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