linux-kernel - Re: [PATCH V3 11/11] accel/amdxdna: Add firmware debug buffer support

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Message-ID: <1a2bb8fc-0242-d86b-1de0-cc9eec1c61c0@quicinc.com>
Date: Fri, 4 Oct 2024 12:33:01 -0600
From: Jeffrey Hugo <quic_jhugo@...cinc.com>
To: Lizhi Hou <lizhi.hou@....com>, <ogabbay@...nel.org>,
        <dri-devel@...ts.freedesktop.org>
CC: <linux-kernel@...r.kernel.org>, <min.ma@....com>, <max.zhen@....com>,
        <sonal.santan@....com>, <king.tam@....com>
Subject: Re: [PATCH V3 11/11] accel/amdxdna: Add firmware debug buffer support

On 9/11/2024 12:06 PM, Lizhi Hou wrote:
> User application may allocate a debug buffer and attach it to an NPU
> context through the driver. Then the NPU firmware prints its debug
> information to this buffer for debugging.

I feel like I must be missing something. It looks like this patch 
accepts a buffer from the user, and stores it. However I don't see how 
the NPU firmware ever learns that this special buffer exists to then use it.