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powerpc/cell: use the generic iommu bypass code

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This gets rid of a lot of clumsy code and finally allows us to mark
dma_iommu_ops const.

Includes fixes from Michael Ellerman.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christoph Hellwig
2019-02-13 08:01:09 +01:00
committed by Michael Ellerman
parent cc9c156db5
commit ba767b5283
4 changed files with 20 additions and 135 deletions
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6
arch/powerpc/include/asm/iommu.h
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@@ -319,5 +319,11 @@ extern void iommu_release_ownership(struct iommu_table *tbl);
extern enum dma_data_direction iommu_tce_direction(unsigned long tce);
extern unsigned long iommu_direction_to_tce_perm(enum dma_data_direction dir);
#ifdef CONFIG_PPC_CELL_NATIVE
extern bool iommu_fixed_is_weak;
#else
#define iommu_fixed_is_weak false
#endif
#endif /* __KERNEL__ */
#endif /* _ASM_IOMMU_H */