[PATCH v2 0/2] Rpmsg support for i.MX DSP with resource table

[PATCH v2 0/2] Rpmsg support for i.MX DSP with resource table

[Iuliana Prodan (OSS)]

From: Iuliana Prodan <iuliana.prodan@nxp.com>

These patches are needed in order to support rpmsg on DSP when a
resource table is available.

Changes since v1:
 - add missing bracket in dtsi (patch 2/2)

Iuliana Prodan (2):
  remoteproc: imx_dsp_rproc: add mandatory find_loaded_rsc_table op
  arm64: dts: imx8mp: add reserve-memory nodes for DSP

 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 13 +++++++++++++
 drivers/remoteproc/imx_dsp_rproc.c        |  1 +
 2 files changed, 14 insertions(+)

-- 
2.17.1

[PATCH v2 1/2] remoteproc: imx_dsp_rproc: add mandatory find_loaded_rsc_table op

[Iuliana Prodan (OSS)]

From: Iuliana Prodan <iuliana.prodan@nxp.com>

Add the .find_loaded_rsc_table operation for i.MX DSP.
We need it for inter-process communication between DSP
and main core.

This callback is used to find the resource table (defined
in remote processor linker script) where the address of the
vrings along with the other allocated resources (carveouts etc)
are stored.
If this is not found, the vrings are not allocated and
the IPC between cores will not work.

Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
---
 drivers/remoteproc/imx_dsp_rproc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_dsp_rproc.c
index 8fcda9b74545..a1c62d15f16c 100644
--- a/drivers/remoteproc/imx_dsp_rproc.c
+++ b/drivers/remoteproc/imx_dsp_rproc.c
@@ -940,6 +940,7 @@ static const struct rproc_ops imx_dsp_rproc_ops = {
 	.kick		= imx_dsp_rproc_kick,
 	.load		= imx_dsp_rproc_elf_load_segments,
 	.parse_fw	= imx_dsp_rproc_parse_fw,
+	.find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
 	.sanity_check	= rproc_elf_sanity_check,
 	.get_boot_addr	= rproc_elf_get_boot_addr,
 };
-- 
2.17.1

[PATCH v2 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Iuliana Prodan (OSS)]

From: Iuliana Prodan <iuliana.prodan@nxp.com>

Add the reserve-memory nodes used by DSP when the rpmsg
feature is enabled.

Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index cc406bb338fe..59e672382b07 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -211,6 +211,19 @@
 			reg = <0 0x92400000 0 0x2000000>;
 			no-map;
 		};
+		dsp_vdev0vring0: vdev0vring0@942f0000 {
+			reg = <0 0x942f0000 0 0x8000>;
+			no-map;
+		};
+		dsp_vdev0vring1: vdev0vring1@942f8000 {
+			reg = <0 0x942f8000 0 0x8000>;
+			no-map;
+		};
+		dsp_vdev0buffer: vdev0buffer@94300000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x94300000 0 0x100000>;
+			no-map;
+		};
 	};
 
 	pmu {
-- 
2.17.1

Re: [PATCH v2 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Shawn Guo]

On Tue, Sep 12, 2023 at 06:30:21PM +0300, Iuliana Prodan (OSS) wrote:
> From: Iuliana Prodan <iuliana.prodan@nxp.com>
> 
> Add the reserve-memory nodes used by DSP when the rpmsg
> feature is enabled.
> 
> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index cc406bb338fe..59e672382b07 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -211,6 +211,19 @@
>  			reg = <0 0x92400000 0 0x2000000>;
>  			no-map;
>  		};
> +		dsp_vdev0vring0: vdev0vring0@942f0000 {
> +			reg = <0 0x942f0000 0 0x8000>;
> +			no-map;
> +		};

Please have a newline between nodes.

Shawn

> +		dsp_vdev0vring1: vdev0vring1@942f8000 {
> +			reg = <0 0x942f8000 0 0x8000>;
> +			no-map;
> +		};
> +		dsp_vdev0buffer: vdev0buffer@94300000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0 0x94300000 0 0x100000>;
> +			no-map;
> +		};
>  	};
>  
>  	pmu {
> -- 
> 2.17.1
>