diff mbox series

[v2,3/5] dts: arm64: qcom: sdm845: add SLPI FastRPC support

Message ID 20230327184811.499553-4-me@dylanvanassche.be
State New
Headers
Series dts: qcom: arm64: sdm845: SLPI DSP enablement |

Commit Message

Dylan Van Assche March 27, 2023, 6:48 p.m. UTC 
  Qualcomm SDM845 SoC features a SLPI DSP which uses FastRPC through
an allocated memory region to load files from the host filesystem
such as sensor configuration files.

Add a FastRPC node at /dev/fastrpc-sdsp and a DMA region, similar to
downstream, to allow userspace to communicate with the SLPI via the
FastRPC interface for initializing the sensors on the SLPI.

Signed-off-by: Dylan Van Assche <me@dylanvanassche.be>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

Comments

Krzysztof Kozlowski March 27, 2023, 7:36 p.m. UTC | #1 
On 27/03/2023 20:48, Dylan Van Assche wrote:
> Qualcomm SDM845 SoC features a SLPI DSP which uses FastRPC through
> an allocated memory region to load files from the host filesystem
> such as sensor configuration files.
> 
> Add a FastRPC node at /dev/fastrpc-sdsp and a DMA region, similar to
> downstream, to allow userspace to communicate with the SLPI via the
> FastRPC interface for initializing the sensors on the SLPI.
> 
> Signed-off-by: Dylan Van Assche <me@dylanvanassche.be>
> ---
>  arch/arm64/boot/dts/qcom/sdm845.dtsi | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index 3b547cb7aeb8..7412ea938765 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -878,6 +878,14 @@ mdata_mem: mpss-metadata {
>  			size = <0 0x4000>;
>  			no-map;
>  		};
> +
> +		fastrpc_mem: fastrpc {
> +			compatible = "shared-dma-pool";
> +			reusable;
> +			alloc-ranges = <0 0x00000000 0 0xffffffff>;
> +			alignment = <0 0x400000>;
> +			size = <0 0x1000000>;
> +		};
>  	};
>  
>  	adsp_pas: remoteproc-adsp {
> @@ -3344,6 +3352,21 @@ glink-edge {
>  				label = "dsps";
>  				qcom,remote-pid = <3>;
>  				mboxes = <&apss_shared 24>;
> +
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "sdsp";
> +					qcom,non-secure-domain;
> +					qcom,vmids = <0x3 0xF 0x5 0x6>;
> +					memory-region = <&fastrpc_mem>;
> +					#address-cells = <1>;
> +					#size-cells = <0>;

This does not make sense now with children nodes not having unit
addresses... but anyway, I do not understand why this one compute node
cannot have unit address.



Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 3b547cb7aeb8..7412ea938765 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -878,6 +878,14 @@  mdata_mem: mpss-metadata {
 			size = <0 0x4000>;
 			no-map;
 		};
+
+		fastrpc_mem: fastrpc {
+			compatible = "shared-dma-pool";
+			reusable;
+			alloc-ranges = <0 0x00000000 0 0xffffffff>;
+			alignment = <0 0x400000>;
+			size = <0 0x1000000>;
+		};
 	};
 
 	adsp_pas: remoteproc-adsp {
@@ -3344,6 +3352,21 @@  glink-edge {
 				label = "dsps";
 				qcom,remote-pid = <3>;
 				mboxes = <&apss_shared 24>;
+
+				fastrpc {
+					compatible = "qcom,fastrpc";
+					qcom,glink-channels = "fastrpcglink-apps-dsp";
+					label = "sdsp";
+					qcom,non-secure-domain;
+					qcom,vmids = <0x3 0xF 0x5 0x6>;
+					memory-region = <&fastrpc_mem>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					compute-cb {
+						compatible = "qcom,fastrpc-compute-cb";
+					};
+				};
 			};
 		};