Subject: Re: [RFC PATCH 6/6] ACPI/IORT: Drop code to set the PMCG software-defined model

From: John Garry <[email-masked]>
Date: Tue, 15 Oct 2019 09:47:12 +0100

On 15/10/2019 04:06, Hanjun Guo wrote:
>> -/*
>> > - * PMCG model identifiers for use in smmu pmu driver. Please note
>> > - * that this is purely for the use of software and has nothing to
>> > - * do with hardware or with IORT specification.
>> > - */
>> > -#define IORT_SMMU_V3_PMCG_GENERIC        0x00000000 /* Generic SMMUv3 PMCG */
>> > -#define IORT_SMMU_V3_PMCG_HISI_HIP08     0x00000001 /* HiSilicon HIP08 PMCG */
> Since only HiSilicon platform has such erratum, and I think it works with
> both old version of firmware, I'm fine with removing this erratum framework.
>

Yeah, seems a decent change on its own, even without the SMMU PMCG 
driver changes.

But we still need to check on patch "[PATCH RFC 2/6] iommu/arm-smmu-v3: 
Record IIDR in arm_smmu_device structure" to progress any of this.

Will, Robin, Any opinion on that patch?

https://lore.kernel.org/linux-iommu/[email-masked]/T/#m1e24771a23ee5426ec94ca2c4ec572642c155a77

> Acked-by: Hanjun Guo <[email-masked]>

Cheers,
John

> Thanks
> Hanjun
> .

_______________________________________________
linux-arm-kernel mailing list
[email-masked]
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel