[PATCH V2 02/10] accel/amdxdna: Support hardware mailbox

Jeffrey Hugo quic_jhugo at quicinc.com
Wed Aug 14 22:02:42 UTC 2024


On 8/14/2024 3:05 PM, Lizhi Hou wrote:
> 
> On 8/9/24 09:32, Jeffrey Hugo wrote:
>> On 8/5/2024 11:39 AM, Lizhi Hou wrote:
>>> +static int mailbox_acquire_msgid(struct mailbox_channel *mb_chann, 
>>> struct mailbox_msg *mb_msg)
>>> +{
>>> +    unsigned long flags;
>>> +    int msg_id;
>>> +
>>> +    spin_lock_irqsave(&mb_chann->chan_idr_lock, flags);
>>> +    msg_id = idr_alloc_cyclic(&mb_chann->chan_idr, mb_msg, 0,
>>> +                  MAX_MSG_ID_ENTRIES, GFP_NOWAIT);
>>> +    spin_unlock_irqrestore(&mb_chann->chan_idr_lock, flags);
>>
>> I think an xa struct would be preferred.
> 
> Can we defer this? This is in critical path.

Ok.  I would be satisfied with a high priority todo item for the conversion.

-Jeff


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