Re: [PATCH V1] accel/amdxdna: Return errors for failed debug BO commands

[Mario Limonciello <superm1@kernel.org>]

On 5/29/26 18:21, Lizhi Hou wrote:
> The config and sync debug BO commands currently may report success even
> when the operation fails.
> 
> Capture the firmware return status and propagate the corresponding error
> to userspace.
> 
> Fixes: 7ea046838021 ("accel/amdxdna: Support firmware debug buffer")
> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
> ---
>   drivers/accel/amdxdna/aie2_ctx.c | 13 +++++--------
>   1 file changed, 5 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c
> index 2ad343728782..da89b3701f5b 100644
> --- a/drivers/accel/amdxdna/aie2_ctx.c
> +++ b/drivers/accel/amdxdna/aie2_ctx.c
> @@ -305,17 +305,13 @@ aie2_sched_drvcmd_resp_handler(void *handle, void __iomem *data, size_t size)
>   	struct amdxdna_sched_job *job = handle;
>   	int ret = 0;
>   
> -	if (unlikely(!data))
> -		goto out;
> -
> -	if (unlikely(size != sizeof(u32))) {
> +	if (unlikely(!data || size != sizeof(u32))) {
> +		job->drv_cmd->result = U32_MAX;
>   		ret = -EINVAL;
> -		goto out;
> +	} else {
> +		job->drv_cmd->result = readl(data);
>   	}
>   
> -	job->drv_cmd->result = readl(data);
> -
> -out:
>   	aie2_sched_notify(job);
>   	return ret;
>   }
> @@ -940,6 +936,7 @@ static int aie2_hwctx_cfg_debug_bo(struct amdxdna_hwctx *hwctx, u32 bo_hdl,
>   	aie2_cmd_wait(hwctx, seq);
>   	if (cmd.result) {
>   		XDNA_ERR(xdna, "Response failure 0x%x", cmd.result);
> +		ret = -EINVAL;
>   		goto put_obj;
>   	}
>