[PATCH] accel/amdxdna: Refactor hardware context destroy routine

[Jeffrey Hugo]

On 1/24/2025 10:35 AM, Lizhi Hou wrote:
> It is required by firmware to wait up to 2 seconds for pending commands
> before sending the destroy hardware context command. After 2 seconds
> wait, if there are still pending commands, driver needs to cancel them.
> 
> So the context destroy steps need to be:
>    1. Stop drm scheduler. (drm_sched_entity_destroy)
>    2. Wait up to 2 seconds for pending commands.
>    3. Destroy hardware context and cancel the rest pending requests.
>    4. Wait all jobs associated with the hwctx are freed.
>    5. Free job resources.
> 
> Signed-off-by: Lizhi Hou <lizhi.hou at amd.com>

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