Messages in this thread | | | Subject | Re: [PATCH v5] iommu/tegra-smmu: Add pagetable mappings to debugfs | From | Dmitry Osipenko <> | Date | Wed, 17 Mar 2021 02:33:41 +0300 |
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15.03.2021 23:36, Nicolin Chen пишет: > +static unsigned long pd_pt_index_iova(unsigned int pd_index, unsigned int pt_index) > +{ > + return ((dma_addr_t)pd_index & (SMMU_NUM_PDE - 1)) << SMMU_PDE_SHIFT | > + ((dma_addr_t)pt_index & (SMMU_NUM_PTE - 1)) << SMMU_PTE_SHIFT; > +}
Looking at this again, I'm now wondering whether will be better to replace dma_addr_t with u32 everywhere since SMMU only supports 32bits for IOVA.
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