linux-kernel - Re: [PATCH 2/2] misc: fastrpc: add support for gpdsp remoteproc

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Message-ID: <3b4c816d-d7e7-4029-917d-f519a75149d6@oss.qualcomm.com>
Date: Thu, 20 Mar 2025 11:28:14 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Ling Xu <quic_lxu5@...cinc.com>, andersson@...nel.org,
        konradybcio@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, srinivas.kandagatla@...aro.org,
        amahesh@....qualcomm.com, arnd@...db.de, gregkh@...uxfoundation.org
Cc: quic_kuiw@...cinc.com, quic_ekangupt@...cinc.com,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 2/2] misc: fastrpc: add support for gpdsp remoteproc

On 3/20/25 6:16 AM, Ling Xu wrote:
> The fastrpc driver has support for 5 types of remoteprocs. There are
> some products which support GPDSP remoteprocs. Add changes to support
> GPDSP remoteprocs.
> 
> Signed-off-by: Ling Xu <quic_lxu5@...cinc.com>
> ---
>  drivers/misc/fastrpc.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
> index 7b7a22c91fe4..80aa554b3042 100644
> --- a/drivers/misc/fastrpc.c
> +++ b/drivers/misc/fastrpc.c
> @@ -28,7 +28,9 @@
>  #define SDSP_DOMAIN_ID (2)
>  #define CDSP_DOMAIN_ID (3)
>  #define CDSP1_DOMAIN_ID (4)
> -#define FASTRPC_DEV_MAX		5 /* adsp, mdsp, slpi, cdsp, cdsp1 */
> +#define GDSP0_DOMAIN_ID (5)
> +#define GDSP1_DOMAIN_ID (6)
> +#define FASTRPC_DEV_MAX		7 /* adsp, mdsp, slpi, cdsp, cdsp1, gdsp0, gdsp1 */

This sounds like a good enum candidate

>  #define FASTRPC_MAX_SESSIONS	14
>  #define FASTRPC_MAX_VMIDS	16
>  #define FASTRPC_ALIGN		128
> @@ -107,7 +109,9 @@
>  #define miscdev_to_fdevice(d) container_of(d, struct fastrpc_device, miscdev)
>  
>  static const char *domains[FASTRPC_DEV_MAX] = { "adsp", "mdsp",
> -						"sdsp", "cdsp", "cdsp1" };
> +						"sdsp", "cdsp",
> +						"cdsp1", "gdsp0",
> +						"gdsp1" };

And this could become

*domains[FASTRPC_DEV_MAX] = {
	...
	[CDSP_DOMAIN_ID] = "cdsp"
	...
};

etc.

Konrad