Commit 9b302424 authored by Sibi Sankar's avatar Sibi Sankar Committed by Bjorn Andersson
Browse files

dt-bindings: remoteproc: qcom,msm8996-mss-pil: Update memory region 



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 MSM8996 (and similar) SoCs.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarSibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230117085840.32356-3-quic_sibis@quicinc.com
parent bdea1422

Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml

+17 −1
Original line number Diff line number Diff line
@@ -122,6 +122,7 @@ properties: 
    items:

      - description: MBA reserved region

      - description: Modem reserved region

      - description: Metadata reserved region



  firmware-name:

    $ref: /schemas/types.yaml#/definitions/string-array
@@ -172,6 +173,20 @@ properties: 
    additionalProperties: false

    deprecated: true



  metadata:

    type: object

    description:

      Metadata reserved region



    properties:

      memory-region: true



    required:

      - memory-region



    additionalProperties: false

    deprecated: true



required:

  - compatible

  - reg
@@ -313,6 +328,7 @@ allOf: 
      - required:

          - mba

          - mpss

          - metadata



additionalProperties: false
@@ -355,7 +371,7 @@ examples: 
                        <&rpmhpd SDM845_MSS>;

        power-domain-names = "cx", "mx", "mss";



        memory-region = <&mba_mem>, <&mpss_mem>;

        memory-region = <&mba_mem>, <&mpss_mem>, <&mdata_mem>;



        resets = <&aoss_reset AOSS_CC_MSS_RESTART>,

                 <&pdc_reset PDC_MODEM_SYNC_RESET>;