Re: [PATCH v8 2/3] iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #74

2017-06-20 Thread Will Deacon
On Tue, Jun 20, 2017 at 07:47:38PM +0530, Geetha sowjanya wrote: > From: Linu Cherian > > Cavium ThunderX2 SMMU implementation doesn't support page 1 register space > and PAGE0_REGS_ONLY option is enabled as an errata workaround. > This option when turned on, replaces all page 1 offsets used for

[PATCH v8 2/3] iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #74

2017-06-20 Thread Geetha sowjanya
From: Linu Cherian Cavium ThunderX2 SMMU implementation doesn't support page 1 register space and PAGE0_REGS_ONLY option is enabled as an errata workaround. This option when turned on, replaces all page 1 offsets used for EVTQ_PROD/CONS, PRIQ_PROD/CONS register access with page 0 offsets. SMMU r