RE: [PATCH] drm/amdgpu: added synchronization for psp cmd buf access

["Chen, Guchun" <Guchun.Chen@xxxxxxx>]

[Public]

 

Before calling into psp_cmd_submit_buf, a mutex psp->cmd_buf_mutex is there, and after entering psp_cmd_submit_buf, there is another mutex psp->mutex, is it a bit redundant?

 

Regards,

Guchun

 

From: Clements, John <John.Clements@xxxxxxx>
Sent: Tuesday, August 3, 2021 5:50 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Li, Candice <Candice.Li@xxxxxxx>; Lazar, Lijo <Lijo.Lazar@xxxxxxx>; Chen, Guchun <Guchun.Chen@xxxxxxx>
Subject: [PATCH] drm/amdgpu: added synchronization for psp cmd buf access

 

[AMD Official Use Only]

 

Submitting patch to synchronize access to psp cmd submission memory to resolve potential race conditions.