Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Sibi Sankar <quic_sibis@quicinc.com>
To:     <andersson@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
        <manivannan.sadhasivam@linaro.org>
CC:     <agross@kernel.org>, <linux-arm-msm@vger.kernel.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <robh+dt@kernel.org>, <konrad.dybcio@somainline.org>,
        <amit.pundir@linaro.org>, <regressions@leemhuis.info>,
        <sumit.semwal@linaro.org>, <will@kernel.org>,
        <catalin.marinas@arm.com>, <robin.murphy@arm.com>,
        Sibi Sankar <quic_sibis@quicinc.com>
Subject: [PATCH V3 04/10] dt-bindings: remoteproc: qcom,sc7280-mss-pil: Update memory-region
Date:   Wed, 11 Jan 2023 17:13:31 +0530
Message-ID: <20230111114337.24782-5-quic_sibis@quicinc.com>
In-Reply-To: <20230111114337.24782-1-quic_sibis@quicinc.com>
References: <20230111114337.24782-1-quic_sibis@quicinc.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

The dynamic memory region used for metadata authentication would still
be a part of the kernel mapping and any access to this region by the
application processor after assigning it to the remote Q6 will result
in a XPU violation. This is fixed by using a no-map carveout instead.
Update the bindings to reflect the addition of the new modem metadata
carveout on SC7280 SoC.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com>
---

v3:
 * remove double space [Krzysztof]
 * Pickup R-b

v2:
 * Pad commit message to explain bindings break [Krzysztof]
 * Split dt/bindings per SoC  [Krzysztof] 

 .../devicetree/bindings/remoteproc/qcom,sc7280-mss-pil.yaml    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-mss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-mss-pil.yaml
index b4de0521a89d..005cb21732af 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-mss-pil.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-mss-pil.yaml
@@ -95,6 +95,7 @@ properties:
     items:
       - description: MBA reserved region
       - description: modem reserved region
+      - description: metadata reserved region
 
   firmware-name:
     $ref: /schemas/types.yaml#/definitions/string-array
@@ -240,7 +241,7 @@ examples:
                         <&rpmhpd SC7280_MSS>;
         power-domain-names = "cx", "mss";
 
-        memory-region = <&mba_mem>, <&mpss_mem>;
+        memory-region = <&mba_mem>, <&mpss_mem>, <&mdata_mem>;
 
         qcom,qmp = <&aoss_qmp>;
 
-- 
2.17.1