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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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22 lines
467 B
C
22 lines
467 B
C
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#ifndef __OF_IOMMU_H
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#define __OF_IOMMU_H
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#ifdef CONFIG_OF_IOMMU
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extern int of_get_dma_window(struct device_node *dn, const char *prefix,
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int index, unsigned long *busno, dma_addr_t *addr,
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size_t *size);
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#else
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static inline int of_get_dma_window(struct device_node *dn, const char *prefix,
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int index, unsigned long *busno, dma_addr_t *addr,
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size_t *size)
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{
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return -EINVAL;
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}
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#endif /* CONFIG_OF_IOMMU */
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#endif /* __OF_IOMMU_H */
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