[PATCH v2 1/3] drm/amdkfd: add event age tracking

[Felix Kuehling]

On 2023-06-06 12:24, James Zhu wrote:
> Add event age tracking
>
> Signed-off-by: James Zhu <James.Zhu at amd.com>
> ---
>   include/uapi/linux/kfd_ioctl.h | 13 +++++++++++--
>   1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
> index 1781e7669982..eeb2fdcbdcb7 100644
> --- a/include/uapi/linux/kfd_ioctl.h
> +++ b/include/uapi/linux/kfd_ioctl.h
> @@ -39,9 +39,10 @@
>    * - 1.11 - Add unified memory for ctx save/restore area
>    * - 1.12 - Add DMA buf export ioctl
>    * - 1.13 - Add debugger API
> + * - 1.14 - Update kfd_event_data
>    */
>   #define KFD_IOCTL_MAJOR_VERSION 1
> -#define KFD_IOCTL_MINOR_VERSION 13
> +#define KFD_IOCTL_MINOR_VERSION 14

Bumping the version number should be done in the last patch in the 
series, once the feature is fully enabled.

Regards,
   Felix


>   
>   struct kfd_ioctl_get_version_args {
>   	__u32 major_version;	/* from KFD */
> @@ -320,12 +321,20 @@ struct kfd_hsa_hw_exception_data {
>   	__u32 gpu_id;
>   };
>   
> +/* hsa signal event data */
> +struct kfd_hsa_signal_event_data {
> +	__u64 last_event_age;	/* to and from KFD */
> +};
> +
>   /* Event data */
>   struct kfd_event_data {
>   	union {
> +		/* From KFD */
>   		struct kfd_hsa_memory_exception_data memory_exception_data;
>   		struct kfd_hsa_hw_exception_data hw_exception_data;
> -	};				/* From KFD */
> +		/* To and From KFD */
> +		struct kfd_hsa_signal_event_data signal_event_data;
> +	};
>   	__u64 kfd_event_data_ext;	/* pointer to an extension structure
>   					   for future exception types */
>   	__u32 event_id;		/* to KFD */