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From: John Garry <john.garry@huawei.com>
To: Jean-Philippe Brucker <jean-philippe@linaro.org>, <robh+dt@kernel.org>
Cc: <mark.rutland@arm.com>, <devicetree@vger.kernel.org>,
	<robin.murphy@arm.com>, <iommu@lists.linux-foundation.org>,
	<uchida.jun@socionext.com>, <leo.yan@linaro.org>,
	<will@kernel.org>, <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 3/3] perf/smmuv3: Synthesize IIDR from CoreSight ID registers
Date: Tue, 7 Dec 2021 09:14:06 +0000	[thread overview]
Message-ID: <e60b15db-4e52-b5a6-1b17-203d250f1e65@huawei.com> (raw)
In-Reply-To: <20211117144844.241072-4-jean-philippe@linaro.org>

On 17/11/2021 14:48, Jean-Philippe Brucker wrote:
> From: Robin Murphy<robin.murphy@arm.com>
> 
> The SMMU_PMCG_IIDR register was not present in older revisions of the
> Arm SMMUv3 spec. On Arm Ltd. implementations, the IIDR value consists of
> fields from several PIDR registers, allowing us to present a
> standardized identifier to userspace.
> 
So is there some userspace part to go with this now?

Thanks,
John

WARNING: multiple messages have this Message-ID (diff)
From: John Garry via iommu <iommu@lists.linux-foundation.org>
To: Jean-Philippe Brucker <jean-philippe@linaro.org>, <robh+dt@kernel.org>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
	will@kernel.org, iommu@lists.linux-foundation.org,
	uchida.jun@socionext.com, leo.yan@linaro.org,
	robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 3/3] perf/smmuv3: Synthesize IIDR from CoreSight ID registers
Date: Tue, 7 Dec 2021 09:14:06 +0000	[thread overview]
Message-ID: <e60b15db-4e52-b5a6-1b17-203d250f1e65@huawei.com> (raw)
In-Reply-To: <20211117144844.241072-4-jean-philippe@linaro.org>

On 17/11/2021 14:48, Jean-Philippe Brucker wrote:
> From: Robin Murphy<robin.murphy@arm.com>
> 
> The SMMU_PMCG_IIDR register was not present in older revisions of the
> Arm SMMUv3 spec. On Arm Ltd. implementations, the IIDR value consists of
> fields from several PIDR registers, allowing us to present a
> standardized identifier to userspace.
> 
So is there some userspace part to go with this now?

Thanks,
John
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

WARNING: multiple messages have this Message-ID (diff)
From: John Garry <john.garry@huawei.com>
To: Jean-Philippe Brucker <jean-philippe@linaro.org>, <robh+dt@kernel.org>
Cc: <mark.rutland@arm.com>, <devicetree@vger.kernel.org>,
	<robin.murphy@arm.com>, <iommu@lists.linux-foundation.org>,
	<uchida.jun@socionext.com>, <leo.yan@linaro.org>,
	<will@kernel.org>, <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 3/3] perf/smmuv3: Synthesize IIDR from CoreSight ID registers
Date: Tue, 7 Dec 2021 09:14:06 +0000	[thread overview]
Message-ID: <e60b15db-4e52-b5a6-1b17-203d250f1e65@huawei.com> (raw)
In-Reply-To: <20211117144844.241072-4-jean-philippe@linaro.org>

On 17/11/2021 14:48, Jean-Philippe Brucker wrote:
> From: Robin Murphy<robin.murphy@arm.com>
> 
> The SMMU_PMCG_IIDR register was not present in older revisions of the
> Arm SMMUv3 spec. On Arm Ltd. implementations, the IIDR value consists of
> fields from several PIDR registers, allowing us to present a
> standardized identifier to userspace.
> 
So is there some userspace part to go with this now?

Thanks,
John

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2021-12-07  9:14 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-17 14:48 [PATCH v2 0/3] perf/smmuv3: Support devicetree Jean-Philippe Brucker
2021-11-17 14:48 ` Jean-Philippe Brucker
2021-11-17 14:48 ` Jean-Philippe Brucker
2021-11-17 14:48 ` [PATCH v2 1/3] dt-bindings: Add Arm SMMUv3 PMCG binding Jean-Philippe Brucker
2021-11-17 14:48   ` Jean-Philippe Brucker
2021-11-17 14:48   ` Jean-Philippe Brucker
2021-11-17 14:48 ` [PATCH v2 2/3] perf/smmuv3: Add devicetree support Jean-Philippe Brucker
2021-11-17 14:48   ` Jean-Philippe Brucker
2021-11-17 14:48   ` Jean-Philippe Brucker
2021-11-17 14:48 ` [PATCH v2 3/3] perf/smmuv3: Synthesize IIDR from CoreSight ID registers Jean-Philippe Brucker
2021-11-17 14:48   ` Jean-Philippe Brucker
2021-11-17 14:48   ` Jean-Philippe Brucker
2021-12-07  9:14   ` John Garry [this message]
2021-12-07  9:14     ` John Garry
2021-12-07  9:14     ` John Garry via iommu
2021-12-07 12:04     ` Robin Murphy
2021-12-07 12:04       ` Robin Murphy
2021-12-07 12:04       ` Robin Murphy
2021-12-07 12:28       ` John Garry
2021-12-07 12:28         ` John Garry
2021-12-07 12:28         ` John Garry via iommu
2021-12-07 12:48         ` Robin Murphy
2021-12-07 12:48           ` Robin Murphy
2021-12-07 12:48           ` Robin Murphy
2021-12-07 13:20           ` Leo Yan
2021-12-07 13:20             ` Leo Yan
2021-12-07 13:20             ` Leo Yan
2021-12-07 13:46             ` Robin Murphy
2021-12-07 13:46               ` Robin Murphy
2021-12-07 13:46               ` Robin Murphy
2021-12-07 13:59               ` Leo Yan
2021-12-07 13:59                 ` Leo Yan
2021-12-07 13:59                 ` Leo Yan
2021-12-07 14:00                 ` John Garry
2021-12-07 14:00                   ` John Garry
2021-12-07 14:00                   ` John Garry via iommu
2021-12-07 14:04                   ` Leo Yan
2021-12-07 14:04                     ` Leo Yan
2021-12-07 14:04                     ` Leo Yan
2021-12-14 14:04 ` [PATCH v2 0/3] perf/smmuv3: Support devicetree Will Deacon
2021-12-14 14:04   ` Will Deacon
2021-12-14 14:04   ` Will Deacon

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