linux-kernel - Re: [PATCH 13/16] arm64: dts: qcom: msm8998: Update reserved memory map

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Message-ID: <CAOCk7NogQY3Vjo+cL5_0anVO=K1LfTqG69b8AGi9HQsTMEsCug@mail.gmail.com>
Date:   Mon, 18 Nov 2019 15:04:35 -0700
From:   Jeffrey Hugo <jeffrey.l.hugo@...il.com>
To:     Sibi Sankar <sibis@...eaurora.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Jeffrey Hugo <jhugo@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Jonathan Marek <jonathan@...ek.ca>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Mark Rutland <mark.rutland@....com>, p.zabel@...gutronix.de,
        MSM <linux-arm-msm@...r.kernel.org>,
        linux-remoteproc@...r.kernel.org,
        DTML <devicetree@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Andy Gross <agross@...nel.org>
Subject: Re: [PATCH 13/16] arm64: dts: qcom: msm8998: Update reserved memory map

On Mon, Nov 18, 2019 at 2:45 PM Sibi Sankar <sibis@...eaurora.org> wrote:
>
> Update existing and add missing regions to the reserved memory map, as
> described in version 7.1
>
> Signed-off-by: Sibi Sankar <sibis@...eaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/msm8998.dtsi | 62 ++++++++++++++++++++++++---
>  1 file changed, 55 insertions(+), 7 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
> index fc7838ea9a010..707673e3cf28a 100644
> --- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
> @@ -28,8 +28,13 @@
>                 #size-cells = <2>;
>                 ranges;
>
> -               memory@...00000 {
> -                       reg = <0x0 0x85800000 0x0 0x800000>;
> +               hyp_mem: memory@...00000 {
> +                       reg = <0x0 0x85800000 0x0 0x600000>;
> +                       no-map;
> +               };
> +
> +               xbl_mem: memory@...00000 {

Are we ever going to use this label?

> +                       reg = <0x0 0x85e00000 0x0 0x100000>;
>                         no-map;
>                 };
>
> @@ -38,21 +43,64 @@
>                         no-map;
>                 };
>
> -               memory@...00000 {
> +               tz_mem: memory@...00000 {

Again, are we ever going to use this?

>                         reg = <0x0 0x86200000 0x0 0x2d00000>;
>                         no-map;
>                 };
>
> -               rmtfs {
> +               rmtfs_mem: memory@...00000 {
>                         compatible = "qcom,rmtfs-mem";
> -
> -                       size = <0x0 0x200000>;
> -                       alloc-ranges = <0x0 0xa0000000 0x0 0x2000000>;
> +                       reg = <0x0 0x88f00000 0x0 0x200000>;

This seems to overlap with a defined region in the memory map.
0x9fa00000 seems to be a better address.

>                         no-map;
>
>                         qcom,client-id = <1>;
>                         qcom,vmid = <15>;
>                 };
> +
> +               spss_mem: memory@...00000 {
> +                       reg = <0x0 0x8ab00000 0x0 0x700000>;
> +                       no-map;
> +               };
> +
> +               adsp_mem: memory@...00000 {
> +                       reg = <0x0 0x8b200000 0x0 0x1a00000>;
> +                       no-map;
> +               };
> +
> +               mpss_mem: memory@...00000 {
> +                       reg = <0x0 0x8cc00000 0x0 0x7000000>;
> +                       no-map;
> +               };
> +
> +               venus_mem: memory@...00000 {
> +                       reg = <0x0 0x93c00000 0x0 0x500000>;
> +                       no-map;
> +               };
> +
> +               mba_mem: memory@...00000 {
> +                       reg = <0x0 0x94100000 0x0 0x200000>;
> +                       no-map;
> +               };
> +
> +               slpi_mem: memory@...00000 {
> +                       reg = <0x0 0x94300000 0x0 0xf00000>;
> +                       no-map;
> +               };
> +
> +               ipa_fw_mem: memory@...00000 {
> +                       reg = <0x0 0x95200000 0x0 0x10000>;
> +                       no-map;
> +               };
> +
> +               ipa_gsi_mem: memory@...10000 {
> +                       reg = <0x0 0x95210000 0x0 0x5000>;
> +                       no-map;
> +               };
> +
> +               gpu_mem: memory@...15000 {
> +                       reg = <0x0 0x95215000 0x0 0x1000>;

This is the wrong size for the zap region.

> +                       no-map;
> +               };
>         };
>
>         clocks {
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>