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c2a96b7f18
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
...
132 lines
5.0 KiB
C
132 lines
5.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (c) 2018-2021 Intel Corporation */
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#ifndef __PECI_INTERNAL_H
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#define __PECI_INTERNAL_H
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#include <linux/device.h>
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#include <linux/types.h>
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struct peci_controller;
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struct attribute_group;
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struct peci_device;
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struct peci_request;
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/* PECI CPU address range 0x30-0x37 */
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#define PECI_BASE_ADDR 0x30
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#define PECI_DEVICE_NUM_MAX 8
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struct peci_request *peci_request_alloc(struct peci_device *device, u8 tx_len, u8 rx_len);
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void peci_request_free(struct peci_request *req);
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int peci_request_status(struct peci_request *req);
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u64 peci_request_dib_read(struct peci_request *req);
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s16 peci_request_temp_read(struct peci_request *req);
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u8 peci_request_data_readb(struct peci_request *req);
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u16 peci_request_data_readw(struct peci_request *req);
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u32 peci_request_data_readl(struct peci_request *req);
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u64 peci_request_data_readq(struct peci_request *req);
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struct peci_request *peci_xfer_get_dib(struct peci_device *device);
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struct peci_request *peci_xfer_get_temp(struct peci_device *device);
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struct peci_request *peci_xfer_pkg_cfg_readb(struct peci_device *device, u8 index, u16 param);
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struct peci_request *peci_xfer_pkg_cfg_readw(struct peci_device *device, u8 index, u16 param);
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struct peci_request *peci_xfer_pkg_cfg_readl(struct peci_device *device, u8 index, u16 param);
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struct peci_request *peci_xfer_pkg_cfg_readq(struct peci_device *device, u8 index, u16 param);
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struct peci_request *peci_xfer_pci_cfg_local_readb(struct peci_device *device,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_pci_cfg_local_readw(struct peci_device *device,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_pci_cfg_local_readl(struct peci_device *device,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_ep_pci_cfg_local_readb(struct peci_device *device, u8 seg,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_ep_pci_cfg_local_readw(struct peci_device *device, u8 seg,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_ep_pci_cfg_local_readl(struct peci_device *device, u8 seg,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_ep_pci_cfg_readb(struct peci_device *device, u8 seg,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_ep_pci_cfg_readw(struct peci_device *device, u8 seg,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_ep_pci_cfg_readl(struct peci_device *device, u8 seg,
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u8 bus, u8 dev, u8 func, u16 reg);
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struct peci_request *peci_xfer_ep_mmio32_readl(struct peci_device *device, u8 bar, u8 seg,
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u8 bus, u8 dev, u8 func, u64 offset);
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struct peci_request *peci_xfer_ep_mmio64_readl(struct peci_device *device, u8 bar, u8 seg,
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u8 bus, u8 dev, u8 func, u64 offset);
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/**
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* struct peci_device_id - PECI device data to match
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* @data: pointer to driver private data specific to device
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* @x86_vfm: device vendor-family-model
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*/
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struct peci_device_id {
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const void *data;
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u32 x86_vfm;
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};
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extern const struct device_type peci_device_type;
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extern const struct attribute_group *peci_device_groups[];
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int peci_device_create(struct peci_controller *controller, u8 addr);
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void peci_device_destroy(struct peci_device *device);
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extern const struct bus_type peci_bus_type;
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extern const struct attribute_group *peci_bus_groups[];
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/**
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* struct peci_driver - PECI driver
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* @driver: inherit device driver
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* @probe: probe callback
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* @remove: remove callback
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* @id_table: PECI device match table to decide which device to bind
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*/
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struct peci_driver {
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struct device_driver driver;
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int (*probe)(struct peci_device *device, const struct peci_device_id *id);
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void (*remove)(struct peci_device *device);
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const struct peci_device_id *id_table;
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};
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#define to_peci_driver(__drv) container_of_const(__drv, struct peci_driver, driver)
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int __peci_driver_register(struct peci_driver *driver, struct module *owner,
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const char *mod_name);
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/**
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* peci_driver_register() - register PECI driver
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* @driver: the driver to be registered
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*
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* PECI drivers that don't need to do anything special in module init should
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* use the convenience "module_peci_driver" macro instead
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*
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* Return: zero on success, else a negative error code.
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*/
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#define peci_driver_register(driver) \
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__peci_driver_register(driver, THIS_MODULE, KBUILD_MODNAME)
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void peci_driver_unregister(struct peci_driver *driver);
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/**
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* module_peci_driver() - helper macro for registering a modular PECI driver
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* @__peci_driver: peci_driver struct
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*
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* Helper macro for PECI drivers which do not do anything special in module
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* init/exit. This eliminates a lot of boilerplate. Each module may only
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* use this macro once, and calling it replaces module_init() and module_exit()
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*/
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#define module_peci_driver(__peci_driver) \
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module_driver(__peci_driver, peci_driver_register, peci_driver_unregister)
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extern const struct device_type peci_controller_type;
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int peci_controller_scan_devices(struct peci_controller *controller);
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#endif /* __PECI_INTERNAL_H */
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