include/linux/peci.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* Copyright (c) 2018-2021 Intel Corporation */
13  * Currently we don't support any PECI command over 32 bytes.
21  * struct peci_controller_ops - PECI controller specific methods
22  * @xfer: PECI transfer function
24  * PECI controllers may have different hardware interfaces - the drivers
25  * implementing PECI controllers can use this structure to abstract away those
26  * differences by exposing a common interface for PECI core.
29 	int (*xfer)(struct peci_controller *controller, u8 addr, struct peci_request *req);
33  * struct peci_controller - PECI controller
34  * @dev: device object to register PECI controller to the device model
35  * @ops: pointer to device specific controller operations
37  * @id: PECI controller ID
39  * PECI controllers usually connect to their drivers using non-PECI bus,
41  * Each PECI controller can communicate with one or more PECI devices.
59  * struct peci_device - PECI device
60  * @dev: device object to register PECI device to the device model
61  * @info: PECI device characteristics
62  * @info.x86_vfm: device vendor-family-model
63  * @info.peci_revision: PECI revision supported by the PECI device
64  * @info.socket_id: the socket ID represented by the PECI device
65  * @addr: address used on the PECI bus connected to the parent controller
66  * @deleted: indicates that PECI device was already deleted
68  * A peci_device identifies a single device (i.e. CPU) connected to a PECI bus.
69  * The behaviour exposed to the rest of the system is defined by the PECI driver
89  * struct peci_request - PECI request
90  * @device: PECI device to which the request is sent
98  * A peci_request represents a request issued by PECI originator (TX) and
99  * a response received from PECI responder (RX).