forked from Minki/linux
93e1821c80
PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
137 lines
5.0 KiB
C
137 lines
5.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/* Copyright (c) 2018-2021 Intel Corporation */
|
|
|
|
#ifndef __PECI_INTERNAL_H
|
|
#define __PECI_INTERNAL_H
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/types.h>
|
|
|
|
struct peci_controller;
|
|
struct attribute_group;
|
|
struct peci_device;
|
|
struct peci_request;
|
|
|
|
/* PECI CPU address range 0x30-0x37 */
|
|
#define PECI_BASE_ADDR 0x30
|
|
#define PECI_DEVICE_NUM_MAX 8
|
|
|
|
struct peci_request *peci_request_alloc(struct peci_device *device, u8 tx_len, u8 rx_len);
|
|
void peci_request_free(struct peci_request *req);
|
|
|
|
int peci_request_status(struct peci_request *req);
|
|
|
|
u64 peci_request_dib_read(struct peci_request *req);
|
|
s16 peci_request_temp_read(struct peci_request *req);
|
|
|
|
u8 peci_request_data_readb(struct peci_request *req);
|
|
u16 peci_request_data_readw(struct peci_request *req);
|
|
u32 peci_request_data_readl(struct peci_request *req);
|
|
u64 peci_request_data_readq(struct peci_request *req);
|
|
|
|
struct peci_request *peci_xfer_get_dib(struct peci_device *device);
|
|
struct peci_request *peci_xfer_get_temp(struct peci_device *device);
|
|
|
|
struct peci_request *peci_xfer_pkg_cfg_readb(struct peci_device *device, u8 index, u16 param);
|
|
struct peci_request *peci_xfer_pkg_cfg_readw(struct peci_device *device, u8 index, u16 param);
|
|
struct peci_request *peci_xfer_pkg_cfg_readl(struct peci_device *device, u8 index, u16 param);
|
|
struct peci_request *peci_xfer_pkg_cfg_readq(struct peci_device *device, u8 index, u16 param);
|
|
|
|
struct peci_request *peci_xfer_pci_cfg_local_readb(struct peci_device *device,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
struct peci_request *peci_xfer_pci_cfg_local_readw(struct peci_device *device,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
struct peci_request *peci_xfer_pci_cfg_local_readl(struct peci_device *device,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
|
|
struct peci_request *peci_xfer_ep_pci_cfg_local_readb(struct peci_device *device, u8 seg,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
struct peci_request *peci_xfer_ep_pci_cfg_local_readw(struct peci_device *device, u8 seg,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
struct peci_request *peci_xfer_ep_pci_cfg_local_readl(struct peci_device *device, u8 seg,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
|
|
struct peci_request *peci_xfer_ep_pci_cfg_readb(struct peci_device *device, u8 seg,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
struct peci_request *peci_xfer_ep_pci_cfg_readw(struct peci_device *device, u8 seg,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
struct peci_request *peci_xfer_ep_pci_cfg_readl(struct peci_device *device, u8 seg,
|
|
u8 bus, u8 dev, u8 func, u16 reg);
|
|
|
|
struct peci_request *peci_xfer_ep_mmio32_readl(struct peci_device *device, u8 bar, u8 seg,
|
|
u8 bus, u8 dev, u8 func, u64 offset);
|
|
|
|
struct peci_request *peci_xfer_ep_mmio64_readl(struct peci_device *device, u8 bar, u8 seg,
|
|
u8 bus, u8 dev, u8 func, u64 offset);
|
|
/**
|
|
* struct peci_device_id - PECI device data to match
|
|
* @data: pointer to driver private data specific to device
|
|
* @family: device family
|
|
* @model: device model
|
|
*/
|
|
struct peci_device_id {
|
|
const void *data;
|
|
u16 family;
|
|
u8 model;
|
|
};
|
|
|
|
extern struct device_type peci_device_type;
|
|
extern const struct attribute_group *peci_device_groups[];
|
|
|
|
int peci_device_create(struct peci_controller *controller, u8 addr);
|
|
void peci_device_destroy(struct peci_device *device);
|
|
|
|
extern struct bus_type peci_bus_type;
|
|
extern const struct attribute_group *peci_bus_groups[];
|
|
|
|
/**
|
|
* struct peci_driver - PECI driver
|
|
* @driver: inherit device driver
|
|
* @probe: probe callback
|
|
* @remove: remove callback
|
|
* @id_table: PECI device match table to decide which device to bind
|
|
*/
|
|
struct peci_driver {
|
|
struct device_driver driver;
|
|
int (*probe)(struct peci_device *device, const struct peci_device_id *id);
|
|
void (*remove)(struct peci_device *device);
|
|
const struct peci_device_id *id_table;
|
|
};
|
|
|
|
static inline struct peci_driver *to_peci_driver(struct device_driver *d)
|
|
{
|
|
return container_of(d, struct peci_driver, driver);
|
|
}
|
|
|
|
int __peci_driver_register(struct peci_driver *driver, struct module *owner,
|
|
const char *mod_name);
|
|
/**
|
|
* peci_driver_register() - register PECI driver
|
|
* @driver: the driver to be registered
|
|
*
|
|
* PECI drivers that don't need to do anything special in module init should
|
|
* use the convenience "module_peci_driver" macro instead
|
|
*
|
|
* Return: zero on success, else a negative error code.
|
|
*/
|
|
#define peci_driver_register(driver) \
|
|
__peci_driver_register(driver, THIS_MODULE, KBUILD_MODNAME)
|
|
void peci_driver_unregister(struct peci_driver *driver);
|
|
|
|
/**
|
|
* module_peci_driver() - helper macro for registering a modular PECI driver
|
|
* @__peci_driver: peci_driver struct
|
|
*
|
|
* Helper macro for PECI drivers which do not do anything special in module
|
|
* init/exit. This eliminates a lot of boilerplate. Each module may only
|
|
* use this macro once, and calling it replaces module_init() and module_exit()
|
|
*/
|
|
#define module_peci_driver(__peci_driver) \
|
|
module_driver(__peci_driver, peci_driver_register, peci_driver_unregister)
|
|
|
|
extern struct device_type peci_controller_type;
|
|
|
|
int peci_controller_scan_devices(struct peci_controller *controller);
|
|
|
|
#endif /* __PECI_INTERNAL_H */
|