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Message-ID: <10f69da3-6f94-4249-a8f3-459dc48fa5e1@oss.qualcomm.com>
Date: Fri, 2 May 2025 11:38:21 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Alexey Klimov <alexey.klimov@...aro.org>, andersson@...nel.org,
konradybcio@...nel.org, linux-arm-msm@...r.kernel.org
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
srini@...nel.org, quic_ekangupt@...cinc.com,
krzysztof.kozlowski@...aro.org
Subject: Re: [PATCH] arm64: dts: qcom: sm8750: Add adsp fastrpc support
On 5/2/25 3:15 AM, Alexey Klimov wrote:
> While at this, also add required memory region for fastrpc.
>
> Tested on sm8750-mtp device with adsprpdcd.
>
> Cc: Ekansh Gupta <quic_ekangupt@...cinc.com>
> Cc: Srinivas Kandagatla <srini@...nel.org>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
> ---
> arch/arm64/boot/dts/qcom/sm8750.dtsi | 70 ++++++++++++++++++++++++++++
> 1 file changed, 70 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> index 149d2ed17641..48ee66125a89 100644
> --- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> @@ -7,6 +7,7 @@
> #include <dt-bindings/clock/qcom,sm8750-gcc.h>
> #include <dt-bindings/clock/qcom,sm8750-tcsr.h>
> #include <dt-bindings/dma/qcom-gpi.h>
> +#include <dt-bindings/firmware/qcom,scm.h>
> #include <dt-bindings/interconnect/qcom,icc.h>
> #include <dt-bindings/interconnect/qcom,sm8750-rpmh.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
> @@ -523,6 +524,14 @@ llcc_lpi_mem: llcc-lpi@...00000 {
> reg = <0x0 0xff800000 0x0 0x800000>;
> no-map;
> };
> +
> + adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap {
> + compatible = "shared-dma-pool";
> + alloc-ranges = <0x0 0x00000000 0x0 0xffffffff>;
> + alignment = <0x0 0x400000>;
> + size = <0x0 0xc00000>;
> + reusable;
> + };
> };
>
> smp2p-adsp {
> @@ -2237,6 +2246,67 @@ q6prmcc: clock-controller {
> };
> };
> };
> +
> + fastrpc {
> + compatible = "qcom,fastrpc";
> + qcom,glink-channels = "fastrpcglink-apps-dsp";
> + label = "adsp";
> + memory-region = <&adsp_rpc_remote_heap_mem>;
IIUC the driver only considers this on the sensor DSP
Konrad
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