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ARM SMMU versions 1 and 2: Difference between revisions
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=== Number of supported Contexts ===
The max number of supported contexts is implied by the max number of SMMU_S2CRn registers (Section 2.3.4: "The number of SMMU_SBARn regs matches the number of entries in the translation context bank table, and is IMPLEMENTATION DEFINED. SMMU_IDR1.NUMCB specifies the number of implemented SMMU_CBARn regs."). That said, NUMCB is an 8-bit field, and section 2.6.1 says: "The SMMU architecture provides space for up to 128 translation context banks".
* Multiple SMMU_SMRn regs may cause multiple StreamIDs to map to the same Context when Stream Matching is used.
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