[PATCH v1] drm/xe/uc: Add xe_uc_stop on hardware initialization error handling

[Dong, Zhanjun]

Please stop review this patch, issue found and new rev is in progress.

Regards,
Zhanjun Dong

On 2025-07-24 11:25 a.m., Zhanjun Dong wrote:
> During hardware initialization, GuC communication is expected, which
> will increase the outstanding counter. Non-zero counter will cause
> assertion failed during shutdown process.
> Add xe_uc_stop call to clear the counter.
> 
> Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/5466
> Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/5530
> 
> Signed-off-by: Zhanjun Dong <zhanjun.dong at intel.com>
> ---
>   drivers/gpu/drm/xe/xe_uc.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/xe_uc.c b/drivers/gpu/drm/xe/xe_uc.c
> index 465bda355443..6c72ce305d6c 100644
> --- a/drivers/gpu/drm/xe/xe_uc.c
> +++ b/drivers/gpu/drm/xe/xe_uc.c
> @@ -173,6 +173,7 @@ static int vf_uc_load_hw(struct xe_uc *uc)
>   	return 0;
>   
>   err_out:
> +	xe_uc_stop(uc);
>   	xe_guc_sanitize(&uc->guc);
>   	return err;
>   }
> @@ -228,6 +229,7 @@ int xe_uc_load_hw(struct xe_uc *uc)
>   	return 0;
>   
>   err_out:
> +	xe_uc_stop(uc);
>   	xe_guc_sanitize(&uc->guc);
>   	return ret;
>   }