[PATCH V4 03/10] accel/amdxdna: Support hardware mailbox

[Jeffrey Hugo]

On 10/11/2024 5:12 PM, Lizhi Hou wrote:
> The hardware mailboxes are used by the driver to submit requests to
> firmware and receive the completion notices from hardware.
> 
> Initially, a management mailbox channel is up and running. The driver may
> request firmware to create/destroy more channels dynamically through
> management channel.
> 
> Add driver internal mailbox interfaces.
>    - create/destroy a mailbox channel instance
>    - send a message to the firmware through a specific channel
>    - wait for a notification from the specific channel
> 
> Co-developed-by: George Yang <George.Yang at amd.com>
> Signed-off-by: George Yang <George.Yang at amd.com>
> Co-developed-by: Min Ma <min.ma at amd.com>
> Signed-off-by: Min Ma <min.ma at amd.com>
> Signed-off-by: Lizhi Hou <lizhi.hou at amd.com>

Reviewed-by: Jeffrey Hugo <quic_jhugo at quicinc.com>