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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=CBVgBFjkce72YAGTOc2I0NfR2QTyjZahMOR47tbfoe0=; b=YhtLO8kiAJvHX8vHRldSDwz9Ayml22RmN1YyaU8RjLuuPb0JAACtLJUw8lQHr8HZnj AZGhHxli79xFNYADJBhibu62SoNu3MHA4QsuDtKJSZAXtu30T7fwmmFB+DnqMrmYvXnQ jO/dWBqDZmwvxzK0mPa7qR3eWKn8ROcM/abkc3Da9JaG9ADGprirB9H5+30siq2IsPaY voT9MgkiT2iQjt7othjkWyOIxDechjQ/ZK/Ujic9TcV/YTknRYHBDXGvuhslEzY77L3v hNjgj9DRwSLBDpq97G9x1CbE9rDr0x49WVGG3Yw5GVt/REEiNBlxin0zlXM3isoxPesZ dKTQ== X-Gm-Message-State: AOAM531twBLj1vTfizPKxLinbjDg5zM/d9QyLdaG0CIT1fKrCLK6h8Aq S7grHnNIOxE+DTox31OE+80RsPIeRTTDge3P6zb+RE1j X-Google-Smtp-Source: ABdhPJwDnlAPaImQnrQAApbQ+w+cGsIt/2VZqafSu7Ti4+lytmzJqD4dBVNo+ZeSue4XBagNFOp/lX3pdQrzVmj/eOM= X-Received: by 2002:a17:906:f199:: with SMTP id gs25mr1970599ejb.161.1595782478958; Sun, 26 Jul 2020 09:54:38 -0700 (PDT) MIME-Version: 1.0 References: <20200720154047.3611092-1-jcrouse@codeaurora.org> <20200720154047.3611092-8-jcrouse@codeaurora.org> In-Reply-To: <20200720154047.3611092-8-jcrouse@codeaurora.org> From: Rob Clark Date: Sun, 26 Jul 2020 09:55:18 -0700 Message-ID: Subject: Re: [PATCH v10 07/13] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU To: Jordan Crouse X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200726_125442_149176_14AB58DB X-CRM114-Status: GOOD ( 15.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Will Deacon , Rob Herring , linux-arm-msm , Linux Kernel Mailing List , "list@263.net:IOMMU DRIVERS , Joerg Roedel , " , Rob Herring , freedreno , Robin Murphy , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jul 20, 2020 at 8:41 AM Jordan Crouse wrote: > > Every Qcom Adreno GPU has an embedded SMMU for its own use. These minor detail: this is true for a3xx and later but not a2xx ;-) > devices depend on unique features such as split pagetables, > different stall/halt requirements and other settings. Identify them > with a compatible string so that they can be identified in the > arm-smmu implementation specific code. > > Signed-off-by: Jordan Crouse > Reviewed-by: Rob Herring > --- > > Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml > index d7ceb4c34423..e52a1b146c97 100644 > --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml > +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml > @@ -38,6 +38,10 @@ properties: > - qcom,sc7180-smmu-500 > - qcom,sdm845-smmu-500 > - const: arm,mmu-500 > + - description: Qcom Adreno GPUs implementing "arm,smmu-v2" > + items: > + - const: qcom,adreno-smmu > + - const: qcom,smmu-v2 > - items: > - const: arm,mmu-500 > - const: arm,smmu-v2 > -- > 2.25.1 > > _______________________________________________ > iommu mailing list > iommu@lists.linux-foundation.org > https://lists.linuxfoundation.org/mailman/listinfo/iommu _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel