linux-kernel - Re: [PATCH V2 5/8] accel/amdxdna: Add query firmware version

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Message-ID: <043f5590-ecd0-46b5-7aba-3ee680563e26@quicinc.com>
Date: Fri, 13 Dec 2024 09:48:41 -0700
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>,
        <mario.limonciello@....com>
Subject: Re: [PATCH V2 5/8] accel/amdxdna: Add query firmware version

On 12/6/2024 2:59 PM, Lizhi Hou wrote:
> Enhance GET_INFO ioctl to support retrieving firmware version.
> 
> Signed-off-by: Lizhi Hou <lizhi.hou@....com>

Reviewed-by: Jeffrey Hugo <quic_jhugo@...cinc.com>

Warning below through.

>   enum amdxdna_drm_get_param {
>   	DRM_AMDXDNA_QUERY_AIE_STATUS,
>   	DRM_AMDXDNA_QUERY_AIE_METADATA,
> @@ -382,7 +396,7 @@ enum amdxdna_drm_get_param {
>   	DRM_AMDXDNA_QUERY_CLOCK_METADATA,
>   	DRM_AMDXDNA_QUERY_SENSORS,
>   	DRM_AMDXDNA_QUERY_HW_CONTEXTS,
> -	DRM_AMDXDNA_NUM_GET_PARAM,
> +	DRM_AMDXDNA_QUERY_FIRMWARE_VERSION = 8,

This would normally be considered breaking the uAPI, but since this 
driver is not yet in a released kernel, this is allowed. Keep this in 
mind for the future (can add things, but not remove them).