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Diffstat (limited to 'drivers/cdx/controller/mcdi_functions.h')
| -rw-r--r-- | drivers/cdx/controller/mcdi_functions.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/cdx/controller/mcdi_functions.h b/drivers/cdx/controller/mcdi_functions.h new file mode 100644 index 000000000000..6bf5a4a0778f --- /dev/null +++ b/drivers/cdx/controller/mcdi_functions.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Header file for MCDI FW interaction for CDX bus. + * + * Copyright (C) 2022-2023, Advanced Micro Devices, Inc. + */ + +#ifndef CDX_MCDI_FUNCTIONS_H +#define CDX_MCDI_FUNCTIONS_H + +#include "mcdi.h" +#include "../cdx.h" + +/** + * cdx_mcdi_get_num_buses - Get the total number of buses on + * the controller. + * @cdx: pointer to MCDI interface. + * + * Return: total number of buses available on the controller, + * <0 on failure + */ +int cdx_mcdi_get_num_buses(struct cdx_mcdi *cdx); + +/** + * cdx_mcdi_get_num_devs - Get the total number of devices on + * a particular bus of the controller. + * @cdx: pointer to MCDI interface. + * @bus_num: Bus number. + * + * Return: total number of devices available on the bus, <0 on failure + */ +int cdx_mcdi_get_num_devs(struct cdx_mcdi *cdx, int bus_num); + +/** + * cdx_mcdi_get_dev_config - Get configuration for a particular + * bus_num:dev_num + * @cdx: pointer to MCDI interface. + * @bus_num: Bus number. + * @dev_num: Device number. + * @dev_params: Pointer to cdx_dev_params, this is populated by this + * device with the configuration corresponding to the provided + * bus_num:dev_num. + * + * Return: 0 total number of devices available on the bus, <0 on failure + */ +int cdx_mcdi_get_dev_config(struct cdx_mcdi *cdx, + u8 bus_num, u8 dev_num, + struct cdx_dev_params *dev_params); + +#endif /* CDX_MCDI_FUNCTIONS_H */ |