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iommu: Remove unused IOMMU_SYS_CACHE_ONLY flag
The IOMMU_SYS_CACHE_ONLY flag was never exposed via the DMA API and has no in-tree users. Remove it. Cc: Robin Murphy <robin.murphy@arm.com> Cc: "Isaac J. Manjarres" <isaacm@codeaurora.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Rob Clark <robdclark@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> Signed-off-by: Will Deacon <will@kernel.org>
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2 changed files with 0 additions and 9 deletions
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@ -438,9 +438,6 @@ static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
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else if (prot & IOMMU_CACHE)
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pte |= (ARM_LPAE_MAIR_ATTR_IDX_CACHE
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<< ARM_LPAE_PTE_ATTRINDX_SHIFT);
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else if (prot & IOMMU_SYS_CACHE_ONLY)
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pte |= (ARM_LPAE_MAIR_ATTR_IDX_INC_OCACHE
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<< ARM_LPAE_PTE_ATTRINDX_SHIFT);
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}
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if (prot & IOMMU_CACHE)
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@ -31,12 +31,6 @@
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* if the IOMMU page table format is equivalent.
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*/
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#define IOMMU_PRIV (1 << 5)
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/*
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* Non-coherent masters can use this page protection flag to set cacheable
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* memory attributes for only a transparent outer level of cache, also known as
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* the last-level or system cache.
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*/
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#define IOMMU_SYS_CACHE_ONLY (1 << 6)
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struct iommu_ops;
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struct iommu_group;
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