From: Stephen Boyd <sboyd@kernel.org>
To: Jordan Crouse <jcrouse@codeaurora.org>, freedreno@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Joerg Roedel <joro@8bytes.org>
Subject: Re: [PATCH 2/7] dt-bindings: arm-smmu: Add Adreno GPU variant
Date: Tue, 17 Sep 2019 11:56:24 -0700 [thread overview]
Message-ID: <20190917185625.8A4A8214AF@mail.kernel.org> (raw)
In-Reply-To: <1566327992-362-3-git-send-email-jcrouse@codeaurora.org>
Quoting Jordan Crouse (2019-08-20 12:06:27)
> Add a compatible string to identify SMMUs that are attached
> to Adreno GPU devices that wish to support split pagetables.
>
> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
> ---
>
> Documentation/devicetree/bindings/iommu/arm,smmu.txt | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
> index 3133f3b..3b07896 100644
> --- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
> +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
> @@ -18,6 +18,7 @@ conditions.
> "arm,mmu-500"
> "cavium,smmu-v2"
> "qcom,smmu-v2"
> + "qcom,adreno-smmu-v2"
Is the tabbing weird here or just my MUA is failing?
>
> depending on the particular implementation and/or the
> version of the architecture implemented.
> @@ -31,6 +32,12 @@ conditions.
> as below, SoC-specific compatibles:
> "qcom,sdm845-smmu-500", "arm,mmu-500"
>
> + "qcom,adreno-smmu-v2" is a special implementation for
Heh, special.
> + SMMU devices attached to the Adreno GPU on Qcom devices.
> + If selected, this will enable split pagetable (TTBR1)
Is this selected? Sounds like Kconfig here.
> + support. Only use this if the GPU target is capable of
> + supporting 64 bit addresses.
> +
> - reg : Base address and size of the SMMU.
>
WARNING: multiple messages have this Message-ID (diff)
From: Stephen Boyd <sboyd@kernel.org>
To: Jordan Crouse <jcrouse@codeaurora.org>, freedreno@lists.freedesktop.org
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>
Subject: Re: [PATCH 2/7] dt-bindings: arm-smmu: Add Adreno GPU variant
Date: Tue, 17 Sep 2019 11:56:24 -0700 [thread overview]
Message-ID: <20190917185625.8A4A8214AF@mail.kernel.org> (raw)
In-Reply-To: <1566327992-362-3-git-send-email-jcrouse@codeaurora.org>
Quoting Jordan Crouse (2019-08-20 12:06:27)
> Add a compatible string to identify SMMUs that are attached
> to Adreno GPU devices that wish to support split pagetables.
>
> Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
> ---
>
> Documentation/devicetree/bindings/iommu/arm,smmu.txt | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
> index 3133f3b..3b07896 100644
> --- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt
> +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt
> @@ -18,6 +18,7 @@ conditions.
> "arm,mmu-500"
> "cavium,smmu-v2"
> "qcom,smmu-v2"
> + "qcom,adreno-smmu-v2"
Is the tabbing weird here or just my MUA is failing?
>
> depending on the particular implementation and/or the
> version of the architecture implemented.
> @@ -31,6 +32,12 @@ conditions.
> as below, SoC-specific compatibles:
> "qcom,sdm845-smmu-500", "arm,mmu-500"
>
> + "qcom,adreno-smmu-v2" is a special implementation for
Heh, special.
> + SMMU devices attached to the Adreno GPU on Qcom devices.
> + If selected, this will enable split pagetable (TTBR1)
Is this selected? Sounds like Kconfig here.
> + support. Only use this if the GPU target is capable of
> + supporting 64 bit addresses.
> +
> - reg : Base address and size of the SMMU.
>
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2019-09-17 18:56 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-20 19:06 [PATCH 0/7] iommu/arm-smmu: Split pagetable support for Adreno GPUs Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` [PATCH 1/7] iommu/arm-smmu: Support split pagetables Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` [PATCH 2/7] dt-bindings: arm-smmu: Add Adreno GPU variant Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-27 17:13 ` Rob Herring
2019-08-27 17:13 ` Rob Herring
2019-09-17 18:56 ` Stephen Boyd [this message]
2019-09-17 18:56 ` Stephen Boyd
2019-08-20 19:06 ` [PATCH 3/7] iommu/arm-smmu: Add a SMMU variant for the Adreno GPU Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-09-17 18:55 ` Stephen Boyd
2019-09-17 18:55 ` Stephen Boyd
2019-09-17 18:55 ` Stephen Boyd
2019-08-20 19:06 ` [PATCH 4/7] iommu: Add DOMAIN_ATTR_SPLIT_TABLES Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` [PATCH 5/7] iommu/arm-smmu: Support DOMAIN_ATTR_SPLIT_TABLES Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-09-17 17:20 ` Will Deacon
2019-09-17 17:20 ` Will Deacon
2019-09-17 17:20 ` Will Deacon
2019-08-20 19:06 ` [PATCH 6/7] drm/msm: Create the msm_mmu object independently from the address space Jordan Crouse
2019-08-20 19:06 ` Jordan Crouse
2019-08-20 19:06 ` [PATCH 7/7] drm/msm: Use per-target functions to set up address spaces Jordan Crouse
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190917185625.8A4A8214AF@mail.kernel.org \
--to=sboyd@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=freedreno@lists.freedesktop.org \
--cc=iommu@lists.linux-foundation.org \
--cc=jcrouse@codeaurora.org \
--cc=joro@8bytes.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.