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linux/drivers/peci/internal.h
Linus Torvalds c2a96b7f18 Driver core changes for 6.11-rc1 
Here is the big set of driver core changes for 6.11-rc1.
 
 Lots of stuff in here, with not a huge diffstat, but apis are evolving
 which required lots of files to be touched.  Highlights of the changes
 in here are:
   - platform remove callback api final fixups (Uwe took many releases to
     get here, finally!)
   - Rust bindings for basic firmware apis and initial driver-core
     interactions.  It's not all that useful for a "write a whole driver
     in rust" type of thing, but the firmware bindings do help out the
     phy rust drivers, and the driver core bindings give a solid base on
     which others can start their work.  There is still a long way to go
     here before we have a multitude of rust drivers being added, but
     it's a great first step.
   - driver core const api changes.  This reached across all bus types,
     and there are some fix-ups for some not-common bus types that
     linux-next and 0-day testing shook out.  This work is being done to
     help make the rust bindings more safe, as well as the C code, moving
     toward the end-goal of allowing us to put driver structures into
     read-only memory.  We aren't there yet, but are getting closer.
   - minor devres cleanups and fixes found by code inspection
   - arch_topology minor changes
   - other minor driver core cleanups
 
 All of these have been in linux-next for a very long time with no
 reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the big set of driver core changes for 6.11-rc1.

  Lots of stuff in here, with not a huge diffstat, but apis are evolving
  which required lots of files to be touched. Highlights of the changes
  in here are:

   - platform remove callback api final fixups (Uwe took many releases
     to get here, finally!)

   - Rust bindings for basic firmware apis and initial driver-core
     interactions.

     It's not all that useful for a "write a whole driver in rust" type
     of thing, but the firmware bindings do help out the phy rust
     drivers, and the driver core bindings give a solid base on which
     others can start their work.

     There is still a long way to go here before we have a multitude of
     rust drivers being added, but it's a great first step.

   - driver core const api changes.

     This reached across all bus types, and there are some fix-ups for
     some not-common bus types that linux-next and 0-day testing shook
     out.

     This work is being done to help make the rust bindings more safe,
     as well as the C code, moving toward the end-goal of allowing us to
     put driver structures into read-only memory. We aren't there yet,
     but are getting closer.

   - minor devres cleanups and fixes found by code inspection

   - arch_topology minor changes

   - other minor driver core cleanups

  All of these have been in linux-next for a very long time with no
  reported problems"

* tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits)
  ARM: sa1100: make match function take a const pointer
  sysfs/cpu: Make crash_hotplug attribute world-readable
  dio: Have dio_bus_match() callback take a const *
  zorro: make match function take a const pointer
  driver core: module: make module_[add|remove]_driver take a const *
  driver core: make driver_find_device() take a const *
  driver core: make driver_[create|remove]_file take a const *
  firmware_loader: fix soundness issue in `request_internal`
  firmware_loader: annotate doctests as `no_run`
  devres: Correct code style for functions that return a pointer type
  devres: Initialize an uninitialized struct member
  devres: Fix memory leakage caused by driver API devm_free_percpu()
  devres: Fix devm_krealloc() wasting memory
  driver core: platform: Switch to use kmemdup_array()
  driver core: have match() callback in struct bus_type take a const *
  MAINTAINERS: add Rust device abstractions to DRIVER CORE
  device: rust: improve safety comments
  MAINTAINERS: add Danilo as FIRMWARE LOADER maintainer
  MAINTAINERS: add Rust FW abstractions to FIRMWARE LOADER
  firmware: rust: improve safety comments
  ...
2024-07-25 10:42:22 -07:00

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/* 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
* @x86_vfm: device vendor-family-model
*/
struct peci_device_id {
const void *data;
u32 x86_vfm;
};
extern const 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 const 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;
};
#define to_peci_driver(__drv) container_of_const(__drv, 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 const struct device_type peci_controller_type;
int peci_controller_scan_devices(struct peci_controller *controller);
#endif /* __PECI_INTERNAL_H */
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