Contributors: 46
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Greg Kroah-Hartman |
335 |
25.40% |
42 |
28.38% |
| Linus Torvalds |
127 |
9.63% |
1 |
0.68% |
| Patrick Mochel |
123 |
9.33% |
17 |
11.49% |
| Kay Sievers |
91 |
6.90% |
9 |
6.08% |
| Danilo Krummrich |
89 |
6.75% |
10 |
6.76% |
| Saravana Kannan |
81 |
6.14% |
8 |
5.41% |
| Rafael J. Wysocki |
63 |
4.78% |
6 |
4.05% |
| Michael Holzheu |
59 |
4.47% |
1 |
0.68% |
| Andy Shevchenko |
47 |
3.56% |
2 |
1.35% |
| Tejun Heo |
29 |
2.20% |
3 |
2.03% |
| Lei Ming |
28 |
2.12% |
2 |
1.35% |
| Linus Torvalds (pre-git) |
27 |
2.05% |
4 |
2.70% |
| Andrzej Hajda |
20 |
1.52% |
1 |
0.68% |
| Dmitry Torokhov |
18 |
1.36% |
2 |
1.35% |
| Randy Dunlap |
16 |
1.21% |
2 |
1.35% |
| David Brownell |
14 |
1.06% |
2 |
1.35% |
| Grygorii Strashko |
14 |
1.06% |
2 |
1.35% |
| Ben Dooks |
13 |
0.99% |
1 |
0.68% |
| Dave Jiang |
13 |
0.99% |
1 |
0.68% |
| Alexander Duyck |
13 |
0.99% |
3 |
2.03% |
| Roland Dreier |
12 |
0.91% |
1 |
0.68% |
| Stephen Hemminger |
10 |
0.76% |
1 |
0.68% |
| Bartosz Golaszewski |
9 |
0.68% |
3 |
2.03% |
| Wei Yang |
8 |
0.61% |
1 |
0.68% |
| Grant C. Likely |
7 |
0.53% |
1 |
0.68% |
| Linus Walleij |
7 |
0.53% |
1 |
0.68% |
| Arnd Bergmann |
5 |
0.38% |
1 |
0.68% |
| Heikki Krogerus |
4 |
0.30% |
1 |
0.68% |
| Benjamin Herrenschmidt |
4 |
0.30% |
1 |
0.68% |
| Christian Brauner |
4 |
0.30% |
1 |
0.68% |
| Michal Hocko |
4 |
0.30% |
1 |
0.68% |
| Paul Gortmaker |
3 |
0.23% |
1 |
0.68% |
| Feng Kan |
3 |
0.23% |
1 |
0.68% |
| Dan J Williams |
2 |
0.15% |
1 |
0.68% |
| Yani Ioannou |
2 |
0.15% |
1 |
0.68% |
| Thomas Gleixner |
2 |
0.15% |
1 |
0.68% |
| Joel A Fernandes |
2 |
0.15% |
1 |
0.68% |
| Daniel Ritz |
2 |
0.15% |
1 |
0.68% |
| Alan Stern |
2 |
0.15% |
2 |
1.35% |
| Ben Hutchings |
1 |
0.08% |
1 |
0.68% |
| Al Viro |
1 |
0.08% |
1 |
0.68% |
| Pin-Yen Lin |
1 |
0.08% |
1 |
0.68% |
| Ricardo B. Marliere |
1 |
0.08% |
1 |
0.68% |
| Cornelia Huck |
1 |
0.08% |
1 |
0.68% |
| Adrian Bunk |
1 |
0.08% |
1 |
0.68% |
| Zijun Hu |
1 |
0.08% |
1 |
0.68% |
| Total |
1319 |
|
148 |
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
* Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
* Copyright (c) 2008-2012 Novell Inc.
* Copyright (c) 2012-2019 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Copyright (c) 2012-2019 Linux Foundation
*
* Core driver model functions and structures that should not be
* shared outside of the drivers/base/ directory.
*
*/
#include <linux/notifier.h>
/**
* struct subsys_private - structure to hold the private to the driver core
* portions of the bus_type/class structure.
* @subsys: the struct kset that defines this subsystem
* @devices_kset: the subsystem's 'devices' directory
* @interfaces: list of subsystem interfaces associated
* @mutex: protect the devices, and interfaces lists.
* @drivers_kset: the list of drivers associated
* @klist_devices: the klist to iterate over the @devices_kset
* @klist_drivers: the klist to iterate over the @drivers_kset
* @bus_notifier: the bus notifier list for anything that cares about things
* on this bus.
* @drivers_autoprobe: gate whether new devices are automatically attached to
* registered drivers, or new drivers automatically attach
* to existing devices.
* @bus: pointer back to the struct bus_type that this structure is associated
* with.
* @dev_root: Default device to use as the parent.
* @glue_dirs: "glue" directory to put in-between the parent device to
* avoid namespace conflicts
* @class: pointer back to the struct class that this structure is associated
* with.
* @lock_key: Lock class key for use by the lock validator
*
* This structure is the one that is the actual kobject allowing struct
* bus_type/class to be statically allocated safely. Nothing outside of the
* driver core should ever touch these fields.
*/
struct subsys_private {
struct kset subsys;
struct kset *devices_kset;
struct list_head interfaces;
struct mutex mutex;
struct kset *drivers_kset;
struct klist klist_devices;
struct klist klist_drivers;
struct blocking_notifier_head bus_notifier;
unsigned int drivers_autoprobe:1;
const struct bus_type *bus;
struct device *dev_root;
struct kset glue_dirs;
const struct class *class;
struct lock_class_key lock_key;
};
#define to_subsys_private(obj) container_of_const(obj, struct subsys_private, subsys.kobj)
static inline struct subsys_private *subsys_get(struct subsys_private *sp)
{
if (sp)
kset_get(&sp->subsys);
return sp;
}
static inline void subsys_put(struct subsys_private *sp)
{
if (sp)
kset_put(&sp->subsys);
}
struct subsys_private *bus_to_subsys(const struct bus_type *bus);
struct subsys_private *class_to_subsys(const struct class *class);
struct driver_private {
struct kobject kobj;
struct klist klist_devices;
struct klist_node knode_bus;
struct module_kobject *mkobj;
struct device_driver *driver;
};
#define to_driver(obj) container_of(obj, struct driver_private, kobj)
#ifdef CONFIG_RUST
/**
* struct driver_type - Representation of a Rust driver type.
*/
struct driver_type {
/**
* @id: Representation of core::any::TypeId.
*/
u8 id[16];
} __packed;
#endif
/**
* struct device_private - structure to hold the private to the driver core
* portions of the device structure.
* @klist_children: klist containing all children of this device
* @knode_parent: node in sibling list
* @knode_driver: node in driver list
* @knode_bus: node in bus list
* @knode_class: node in class list
* @deferred_probe: entry in deferred_probe_list which is used to retry the
* binding of drivers which were unable to get all the
* resources needed by the device; typically because it depends
* on another driver getting probed first.
* @async_driver: pointer to device driver awaiting probe via async_probe
* @deferred_probe_reason: capture the -EPROBE_DEFER message emitted with
* dev_err_probe() for later retrieval via debugfs
* @device: pointer back to the struct device that this structure is
* associated with.
* @driver_type: The type of the bound Rust driver.
* @dead: This device is currently either in the process of or has been
* removed from the system. Any asynchronous events scheduled for this
* device should exit without taking any action.
*
* Nothing outside of the driver core should ever touch these fields.
*/
struct device_private {
struct klist klist_children;
struct klist_node knode_parent;
struct klist_node knode_driver;
struct klist_node knode_bus;
struct klist_node knode_class;
struct list_head deferred_probe;
const struct device_driver *async_driver;
char *deferred_probe_reason;
struct device *device;
#ifdef CONFIG_RUST
struct driver_type driver_type;
#endif
u8 dead:1;
};
#define to_device_private_parent(obj) \
container_of(obj, struct device_private, knode_parent)
#define to_device_private_driver(obj) \
container_of(obj, struct device_private, knode_driver)
#define to_device_private_bus(obj) \
container_of(obj, struct device_private, knode_bus)
#define to_device_private_class(obj) \
container_of(obj, struct device_private, knode_class)
/* initialisation functions */
int devices_init(void);
int buses_init(void);
int classes_init(void);
int firmware_init(void);
#ifdef CONFIG_SYS_HYPERVISOR
int hypervisor_init(void);
#else
static inline int hypervisor_init(void) { return 0; }
#endif
int platform_bus_init(void);
int faux_bus_init(void);
void cpu_dev_init(void);
void container_dev_init(void);
#ifdef CONFIG_AUXILIARY_BUS
void auxiliary_bus_init(void);
#else
static inline void auxiliary_bus_init(void) { }
#endif
struct kobject *virtual_device_parent(void);
int bus_add_device(struct device *dev);
void bus_probe_device(struct device *dev);
void bus_remove_device(struct device *dev);
void bus_notify(struct device *dev, enum bus_notifier_event value);
bool bus_is_registered(const struct bus_type *bus);
int bus_add_driver(struct device_driver *drv);
void bus_remove_driver(struct device_driver *drv);
void device_release_driver_internal(struct device *dev, const struct device_driver *drv,
struct device *parent);
void driver_detach(const struct device_driver *drv);
void driver_deferred_probe_del(struct device *dev);
void device_set_deferred_probe_reason(const struct device *dev, struct va_format *vaf);
static inline int driver_match_device(const struct device_driver *drv,
struct device *dev)
{
return drv->bus->match ? drv->bus->match(dev, drv) : 1;
}
static inline void dev_sync_state(struct device *dev)
{
if (dev->bus->sync_state)
dev->bus->sync_state(dev);
else if (dev->driver && dev->driver->sync_state)
dev->driver->sync_state(dev);
}
int driver_add_groups(const struct device_driver *drv, const struct attribute_group **groups);
void driver_remove_groups(const struct device_driver *drv, const struct attribute_group **groups);
void device_driver_detach(struct device *dev);
static inline void device_set_driver(struct device *dev, const struct device_driver *drv)
{
/*
* Majority (all?) read accesses to dev->driver happens either
* while holding device lock or in bus/driver code that is only
* invoked when the device is bound to a driver and there is no
* concern of the pointer being changed while it is being read.
* However when reading device's uevent file we read driver pointer
* without taking device lock (so we do not block there for
* arbitrary amount of time). We use WRITE_ONCE() here to prevent
* tearing so that READ_ONCE() can safely be used in uevent code.
*/
// FIXME - this cast should not be needed "soon"
WRITE_ONCE(dev->driver, (struct device_driver *)drv);
}
struct devres_node;
typedef void (*dr_node_release_t)(struct device *dev, struct devres_node *node);
typedef void (*dr_node_free_t)(struct devres_node *node);
struct devres_node {
struct list_head entry;
dr_node_release_t release;
dr_node_free_t free_node;
const char *name;
size_t size;
};
void devres_node_init(struct devres_node *node, dr_node_release_t release,
dr_node_free_t free_node);
void devres_node_add(struct device *dev, struct devres_node *node);
bool devres_node_remove(struct device *dev, struct devres_node *node);
void devres_set_node_dbginfo(struct devres_node *node, const char *name,
size_t size);
void devres_for_each_res(struct device *dev, dr_release_t release,
dr_match_t match, void *match_data,
void (*fn)(struct device *, void *, void *),
void *data);
int devres_release_all(struct device *dev);
void device_block_probing(void);
void device_unblock_probing(void);
void deferred_probe_extend_timeout(void);
void driver_deferred_probe_trigger(void);
const char *device_get_devnode(const struct device *dev, umode_t *mode,
kuid_t *uid, kgid_t *gid, const char **tmp);
/* /sys/devices directory */
extern struct kset *devices_kset;
void devices_kset_move_last(struct device *dev);
#if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS)
int module_add_driver(struct module *mod, const struct device_driver *drv);
void module_remove_driver(const struct device_driver *drv);
#else
static inline int module_add_driver(struct module *mod,
struct device_driver *drv)
{
return 0;
}
static inline void module_remove_driver(struct device_driver *drv) { }
#endif
#ifdef CONFIG_DEVTMPFS
int devtmpfs_init(void);
#else
static inline int devtmpfs_init(void) { return 0; }
#endif
#ifdef CONFIG_BLOCK
extern const struct class block_class;
static inline bool is_blockdev(struct device *dev)
{
return dev->class == &block_class;
}
#else
static inline bool is_blockdev(struct device *dev) { return false; }
#endif
/* Device links support */
int device_links_read_lock(void);
void device_links_read_unlock(int idx);
int device_links_read_lock_held(void);
int device_links_check_suppliers(struct device *dev);
void device_links_force_bind(struct device *dev);
void device_links_driver_bound(struct device *dev);
void device_links_driver_cleanup(struct device *dev);
void device_links_no_driver(struct device *dev);
bool device_links_busy(struct device *dev);
void device_links_unbind_consumers(struct device *dev);
bool device_link_flag_is_sync_state_only(u32 flags);
void fw_devlink_drivers_done(void);
void fw_devlink_probing_done(void);
#define dev_for_each_link_to_supplier(__link, __dev) \
list_for_each_entry_srcu(__link, &(__dev)->links.suppliers, c_node, \
device_links_read_lock_held())
#define dev_for_each_link_to_consumer(__link, __dev) \
list_for_each_entry_srcu(__link, &(__dev)->links.consumers, s_node, \
device_links_read_lock_held())
/* device pm support */
void device_pm_move_to_tail(struct device *dev);
#ifdef CONFIG_DEVTMPFS
int devtmpfs_create_node(struct device *dev);
int devtmpfs_delete_node(struct device *dev);
#else
static inline int devtmpfs_create_node(struct device *dev) { return 0; }
static inline int devtmpfs_delete_node(struct device *dev) { return 0; }
#endif
void software_node_init(void);
void software_node_notify(struct device *dev);
void software_node_notify_remove(struct device *dev);
#ifdef CONFIG_PINCTRL
int pinctrl_bind_pins(struct device *dev);
#else
static inline int pinctrl_bind_pins(struct device *dev)
{
return 0;
}
#endif /* CONFIG_PINCTRL */