linux-kernel - Re: [PATCH] mailbox: pcc: export the PCC subspace type

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Message-ID: <20230914161335.rz6fn4w2pqzz4wdp@bogus>
Date:   Thu, 14 Sep 2023 17:13:35 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     Huisong Li <lihuisong@...wei.com>
Cc:     rafael@...nel.org, rafael.j.wysocki@...el.com,
        Sudeep Holla <sudeep.holla@....com>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        liuyonglong@...wei.com
Subject: Re: [PATCH] mailbox: pcc: export the PCC subspace type

On Thu, Sep 14, 2023 at 07:57:53PM +0800, Huisong Li wrote:
> As stated in APCI spec, the size of the subspace shared memory region may
> be different for different types. So it is useful for driver to fill PCC
> communication space. But the driver used this PCC channel doesn't know what
> is the subspace type of the channel.
> 
> So export the PCC subspace type by requesting PCC channel.
>

I would prefer to avoid this, but please post it with user to get better
understanding of it.

-- 
Regards,
Sudeep