linux-kernel - Re: [PATCH] misc: fastrpc: add ioctl for attaching to sensors pd

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Message-ID: <3f1f8ff1-cf23-ae2c-4cff-cdcce0b11e2e@marek.ca>
Date:   Mon, 7 Sep 2020 09:47:13 -0400
From:   Jonathan Marek <jonathan@...ek.ca>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-arm-msm@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] misc: fastrpc: add ioctl for attaching to sensors pd

On 9/7/20 8:36 AM, Srinivas Kandagatla wrote:
> 
> 
> On 01/09/2020 01:32, Jonathan Marek wrote:
>> -#define FASTRPC_IOCTL_MMAP              _IOWR('R', 6, struct 
>> fastrpc_req_mmap)
>> -#define FASTRPC_IOCTL_MUNMAP            _IOWR('R', 7, struct 
>> fastrpc_req_munmap)
>> +#define FASTRPC_IOCTL_MMAP        _IOWR('R', 6, struct fastrpc_req_mmap)
>> +#define FASTRPC_IOCTL_MUNMAP        _IOWR('R', 7, struct 
>> fastrpc_req_munmap)
> 
> Looks like changes that do not belong to this patch!
> 
> I wanted to try this patch on SM8250.
> How do you test attaching fastrpc to sensor core?, I mean which 
> userspace lib/tool do you use?
> 
> --srini
> 

I pushed my sdsprpcd implementation to github, which is responsible for 
initializing the sensors, and uses this ioctl:

https://github.com/flto/fastrpc

Note: it uses my own WIP fastrpc "library" instead of the one from 
linaro, I also have other related code, like a sensor client, and 
cDSP/aDSP compute examples, but need to confirm that I can share them

Also, the corresponding dts patch I sent has a problem, the label = 
"dsps"; should be label = "sdsp"; (copied the "dsps" from downstream, 
but upstream expects "sdsp"), will send a v2 later today.

>> +#define FASTRPC_IOCTL_INIT_ATTACH_SNS    _IO('R', 8)