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From: Rob Herring <robh@kernel.org>
To: Sven Peter <sven@svenpeter.dev>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-nvme@lists.infradead.org, Christoph Hellwig <hch@lst.de>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Alyssa Rosenzweig <alyssa@rosenzweig.io>,
	Rob Herring <robh+dt@kernel.org>, Marc Zyngier <maz@kernel.org>,
	Hector Martin <marcan@marcan.st>,
	Sagi Grimberg <sagi@grimberg.me>, Jens Axboe <axboe@fb.com>,
	Keith Busch <kbusch@kernel.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v2 1/6] dt-bindings: iommu: Add Apple SART DMA address filter
Date: Mon, 25 Apr 2022 19:56:25 -0500	[thread overview]
Message-ID: <YmdDOeD31VZkMvv4@robh.at.kernel.org> (raw)
In-Reply-To: <20220415142055.30873-2-sven@svenpeter.dev>

On Fri, 15 Apr 2022 16:20:50 +0200, Sven Peter wrote:
> Apple SoCs such as the M1 come with a simple DMA address filter called
> SART. Unlike a real IOMMU no pagetables can be configured but instead
> DMA transactions can be allowed for up to 16 paddr regions. The consumer
> also needs special support since not all DMA allocations have to be
> added to this filter.
> 
> Signed-off-by: Sven Peter <sven@svenpeter.dev>
> ---
> v1 -> v2:
>   - Moved to bindings/iommu since it is "Close enough to an IOMMU in
>     terms of its purpose" (Rob Herring)
> 
>  .../devicetree/bindings/iommu/apple,sart.yaml | 52 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 53 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iommu/apple,sart.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>


WARNING: multiple messages have this Message-ID (diff)
From: Rob Herring <robh@kernel.org>
To: Sven Peter <sven@svenpeter.dev>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-nvme@lists.infradead.org, Christoph Hellwig <hch@lst.de>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Alyssa Rosenzweig <alyssa@rosenzweig.io>,
	Rob Herring <robh+dt@kernel.org>, Marc Zyngier <maz@kernel.org>,
	Hector Martin <marcan@marcan.st>,
	Sagi Grimberg <sagi@grimberg.me>, Jens Axboe <axboe@fb.com>,
	Keith Busch <kbusch@kernel.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v2 1/6] dt-bindings: iommu: Add Apple SART DMA address filter
Date: Mon, 25 Apr 2022 19:56:25 -0500	[thread overview]
Message-ID: <YmdDOeD31VZkMvv4@robh.at.kernel.org> (raw)
In-Reply-To: <20220415142055.30873-2-sven@svenpeter.dev>

On Fri, 15 Apr 2022 16:20:50 +0200, Sven Peter wrote:
> Apple SoCs such as the M1 come with a simple DMA address filter called
> SART. Unlike a real IOMMU no pagetables can be configured but instead
> DMA transactions can be allowed for up to 16 paddr regions. The consumer
> also needs special support since not all DMA allocations have to be
> added to this filter.
> 
> Signed-off-by: Sven Peter <sven@svenpeter.dev>
> ---
> v1 -> v2:
>   - Moved to bindings/iommu since it is "Close enough to an IOMMU in
>     terms of its purpose" (Rob Herring)
> 
>  .../devicetree/bindings/iommu/apple,sart.yaml | 52 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 53 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iommu/apple,sart.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>

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

  reply	other threads:[~2022-04-26  0:56 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-15 14:20 [PATCH v2 0/6] Apple M1 (Pro/Max) NVMe driver Sven Peter
2022-04-15 14:20 ` Sven Peter
2022-04-15 14:20 ` Sven Peter
2022-04-15 14:20 ` [PATCH v2 1/6] dt-bindings: iommu: Add Apple SART DMA address filter Sven Peter
2022-04-15 14:20   ` Sven Peter
2022-04-26  0:56   ` Rob Herring [this message]
2022-04-26  0:56     ` Rob Herring
2022-04-15 14:20 ` [PATCH v2 2/6] dt-bindings: nvme: Add Apple ANS NVMe Sven Peter
2022-04-15 14:20   ` Sven Peter
2022-04-26  0:59   ` Rob Herring
2022-04-26  0:59     ` Rob Herring
2022-04-15 14:20 ` [PATCH v2 3/6] soc: apple: Always include Makefile Sven Peter
2022-04-15 14:20   ` Sven Peter
2022-04-15 14:20 ` [PATCH v2 4/6] soc: apple: Add SART driver Sven Peter
2022-04-15 14:20   ` Sven Peter
2022-04-15 14:20 ` [PATCH v2 5/6] soc: apple: Add RTKit IPC library Sven Peter
2022-04-15 14:20   ` Sven Peter
2022-04-15 14:20 ` [PATCH v2 6/6] nvme-apple: Add initial Apple SoC NVMe driver Sven Peter
2022-04-15 14:20   ` Sven Peter
2022-04-19  5:31   ` Christoph Hellwig
2022-04-19  5:31     ` Christoph Hellwig
2022-04-19  5:59     ` Hector Martin
2022-04-19  5:59       ` Hector Martin
2022-04-19  9:47     ` Sven Peter
2022-04-19  9:47       ` Sven Peter
2022-04-19  9:52       ` Arnd Bergmann
2022-04-19  9:52         ` Arnd Bergmann
2022-04-20  4:34         ` hch
2022-04-20  4:34           ` hch
2022-04-20  9:53           ` Arnd Bergmann
2022-04-20  9:53             ` Arnd Bergmann

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