Re: [PATCH V2 5/8] accel/amdxdna: Add query firmware version

[Mario Limonciello]

On 12/6/2024 15:59, Lizhi Hou wrote:
> Enhance GET_INFO ioctl to support retrieving firmware version.
>
> Signed-off-by: Lizhi Hou <lizhi.hou@xxxxxxx>
Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> ---
>   drivers/accel/amdxdna/aie2_pci.c | 20 ++++++++++++++++++++
>   include/uapi/drm/amdxdna_accel.h | 16 +++++++++++++++-
>   2 files changed, 35 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c
> index 1c8170325837..83abd16ade11 100644
> --- a/drivers/accel/amdxdna/aie2_pci.c
> +++ b/drivers/accel/amdxdna/aie2_pci.c
> @@ -640,6 +640,23 @@ static int aie2_get_aie_version(struct amdxdna_client *client,
>   	return 0;
>   }
>   
> +static int aie2_get_firmware_version(struct amdxdna_client *client,
> +				     struct amdxdna_drm_get_info *args)
> +{
> +	struct amdxdna_drm_query_firmware_version version;
> +	struct amdxdna_dev *xdna = client->xdna;
> +
> +	version.major = xdna->fw_ver.major;
> +	version.minor = xdna->fw_ver.minor;
> +	version.patch = xdna->fw_ver.sub;
> +	version.build = xdna->fw_ver.build;
> +
> +	if (copy_to_user(u64_to_user_ptr(args->buffer), &version, sizeof(version)))
> +		return -EFAULT;
> +
> +	return 0;
> +}
> +
>   static int aie2_get_clock_metadata(struct amdxdna_client *client,
>   				   struct amdxdna_drm_get_info *args)
>   {
> @@ -752,6 +769,9 @@ static int aie2_get_info(struct amdxdna_client *client, struct amdxdna_drm_get_i
>   	case DRM_AMDXDNA_QUERY_HW_CONTEXTS:
>   		ret = aie2_get_hwctx_status(client, args);
>   		break;
> +	case DRM_AMDXDNA_QUERY_FIRMWARE_VERSION:
> +		ret = aie2_get_firmware_version(client, args);
> +		break;
>   	default:
>   		XDNA_ERR(xdna, "Not supported request parameter %u", args->param);
>   		ret = -EOPNOTSUPP;
> diff --git a/include/uapi/drm/amdxdna_accel.h b/include/uapi/drm/amdxdna_accel.h
> index af12af8bd699..4f15e53a548d 100644
> --- a/include/uapi/drm/amdxdna_accel.h
> +++ b/include/uapi/drm/amdxdna_accel.h
> @@ -375,6 +375,20 @@ struct amdxdna_drm_query_hwctx {
>   	__u64 errors;
>   };
>   
> +/**
> + * struct amdxdna_drm_query_firmware_version - Query the firmware version
> + * @major: The major version number
> + * @minor: The minor version number
> + * @patch: The patch level version number
> + * @build: The build ID
> + */
> +struct amdxdna_drm_query_firmware_version {
> +	__u32 major; /* out */
> +	__u32 minor; /* out */
> +	__u32 patch; /* out */
> +	__u32 build; /* out */
> +};
> +
>   enum amdxdna_drm_get_param {
>   	DRM_AMDXDNA_QUERY_AIE_STATUS,
>   	DRM_AMDXDNA_QUERY_AIE_METADATA,
> @@ -382,7 +396,7 @@ enum amdxdna_drm_get_param {
>   	DRM_AMDXDNA_QUERY_CLOCK_METADATA,
>   	DRM_AMDXDNA_QUERY_SENSORS,
>   	DRM_AMDXDNA_QUERY_HW_CONTEXTS,
> -	DRM_AMDXDNA_NUM_GET_PARAM,
> +	DRM_AMDXDNA_QUERY_FIRMWARE_VERSION = 8,
>   };
>   
>   /**