diff options
Diffstat (limited to 'include/linux')
206 files changed, 4031 insertions, 1277 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 17b5b596764..353ba256f36 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -352,8 +352,7 @@ extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, /* Enable _OST when all relevant hotplug operations are enabled */ #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ - (defined(CONFIG_ACPI_HOTPLUG_MEMORY) || \ - defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)) && \ + defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ defined(CONFIG_ACPI_CONTAINER) #define ACPI_HOTPLUG_OST #endif diff --git a/include/linux/acpi_dma.h b/include/linux/acpi_dma.h index d09deabc7bf..fb029808291 100644 --- a/include/linux/acpi_dma.h +++ b/include/linux/acpi_dma.h @@ -37,6 +37,8 @@ struct acpi_dma_spec { * @dev: struct device of this controller * @acpi_dma_xlate: callback function to find a suitable channel * @data: private data used by a callback function + * @base_request_line: first supported request line (CSRT) + * @end_request_line: last supported request line (CSRT) */ struct acpi_dma { struct list_head dma_controllers; @@ -44,6 +46,8 @@ struct acpi_dma { struct dma_chan *(*acpi_dma_xlate) (struct acpi_dma_spec *, struct acpi_dma *); void *data; + unsigned short base_request_line; + unsigned short end_request_line; }; /* Used with acpi_dma_simple_xlate() */ diff --git a/include/linux/aer.h b/include/linux/aer.h index ec10e1b24c1..4dbaa708153 100644 --- a/include/linux/aer.h +++ b/include/linux/aer.h @@ -7,6 +7,10 @@ #ifndef _AER_H_ #define _AER_H_ +#define AER_NONFATAL 0 +#define AER_FATAL 1 +#define AER_CORRECTABLE 2 + struct aer_header_log_regs { unsigned int dw0; unsigned int dw1; @@ -31,9 +35,9 @@ struct aer_capability_regs { #if defined(CONFIG_PCIEAER) /* pci-e port driver needs this function to enable aer */ -extern int pci_enable_pcie_error_reporting(struct pci_dev *dev); -extern int pci_disable_pcie_error_reporting(struct pci_dev *dev); -extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); +int pci_enable_pcie_error_reporting(struct pci_dev *dev); +int pci_disable_pcie_error_reporting(struct pci_dev *dev); +int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); #else static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev) { @@ -49,10 +53,11 @@ static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) } #endif -extern void cper_print_aer(const char *prefix, struct pci_dev *dev, - int cper_severity, struct aer_capability_regs *aer); -extern int cper_severity_to_aer(int cper_severity); -extern void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, - int severity); +void cper_print_aer(struct pci_dev *dev, int cper_severity, + struct aer_capability_regs *aer); +int cper_severity_to_aer(int cper_severity); +void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, + int severity, + struct aer_capability_regs *aer_regs); #endif //_AER_H_ diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h index 9069694e70e..a899402a5a0 100644 --- a/include/linux/alarmtimer.h +++ b/include/linux/alarmtimer.h @@ -44,10 +44,14 @@ struct alarm { void alarm_init(struct alarm *alarm, enum alarmtimer_type type, enum alarmtimer_restart (*function)(struct alarm *, ktime_t)); int alarm_start(struct alarm *alarm, ktime_t start); +int alarm_start_relative(struct alarm *alarm, ktime_t start); +void alarm_restart(struct alarm *alarm); int alarm_try_to_cancel(struct alarm *alarm); int alarm_cancel(struct alarm *alarm); u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval); +u64 alarm_forward_now(struct alarm *alarm, ktime_t interval); +ktime_t alarm_expires_remaining(const struct alarm *alarm); /* Provide way to access the rtc device being used by alarmtimers */ struct rtc_device *alarmtimer_get_rtcdev(void); diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h index 2a5f64a11b7..10fe2a211c2 100644 --- a/include/linux/amba/pl08x.h +++ b/include/linux/amba/pl08x.h @@ -76,11 +76,11 @@ struct pl08x_channel_data { * platform, all inclusive, including multiplexed channels. The available * physical channels will be multiplexed around these signals as they are * requested, just enumerate all possible channels. - * @get_signal: request a physical signal to be used for a DMA transfer + * @get_xfer_signal: request a physical signal to be used for a DMA transfer * immediately: if there is some multiplexing or similar blocking the use * of the channel the transfer can be denied by returning less than zero, * else it returns the allocated signal number - * @put_signal: indicate to the platform that this physical signal is not + * @put_xfer_signal: indicate to the platform that this physical signal is not * running any DMA transfer and multiplexing can be recycled * @lli_buses: buses which LLIs can be fetched from: PL08X_AHB1 | PL08X_AHB2 * @mem_buses: buses which memory can be accessed from: PL08X_AHB1 | PL08X_AHB2 @@ -89,8 +89,8 @@ struct pl08x_platform_data { const struct pl08x_channel_data *slave_channels; unsigned int num_slave_channels; struct pl08x_channel_data memcpy_channel; - int (*get_signal)(const struct pl08x_channel_data *); - void (*put_signal)(const struct pl08x_channel_data *, int); + int (*get_xfer_signal)(const struct pl08x_channel_data *); + void (*put_xfer_signal)(const struct pl08x_channel_data *, int); u8 lli_buses; u8 mem_buses; }; diff --git a/include/linux/arm-cci.h b/include/linux/arm-cci.h new file mode 100644 index 00000000000..79d6edf446d --- /dev/null +++ b/include/linux/arm-cci.h @@ -0,0 +1,61 @@ +/* + * CCI cache coherent interconnect support + * + * Copyright (C) 2013 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __LINUX_ARM_CCI_H +#define __LINUX_ARM_CCI_H + +#include <linux/errno.h> +#include <linux/types.h> + +struct device_node; + +#ifdef CONFIG_ARM_CCI +extern bool cci_probed(void); +extern int cci_ace_get_port(struct device_node *dn); +extern int cci_disable_port_by_cpu(u64 mpidr); +extern int __cci_control_port_by_device(struct device_node *dn, bool enable); +extern int __cci_control_port_by_index(u32 port, bool enable); +#else +static inline bool cci_probed(void) { return false; } +static inline int cci_ace_get_port(struct device_node *dn) +{ + return -ENODEV; +} +static inline int cci_disable_port_by_cpu(u64 mpidr) { return -ENODEV; } +static inline int __cci_control_port_by_device(struct device_node *dn, + bool enable) +{ + return -ENODEV; +} +static inline int __cci_control_port_by_index(u32 port, bool enable) +{ + return -ENODEV; +} +#endif +#define cci_disable_port_by_device(dev) \ + __cci_control_port_by_device(dev, false) +#define cci_enable_port_by_device(dev) \ + __cci_control_port_by_device(dev, true) +#define cci_disable_port_by_index(dev) \ + __cci_control_port_by_index(dev, false) +#define cci_enable_port_by_index(dev) \ + __cci_control_port_by_index(dev, true) + +#endif diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h index a1c486a88e8..179b38ffd35 100644 --- a/include/linux/async_tx.h +++ b/include/linux/async_tx.h @@ -182,10 +182,6 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, unsigned int src_offset, size_t len, struct async_submit_ctl *submit); -struct dma_async_tx_descriptor * -async_memset(struct page *dest, int val, unsigned int offset, - size_t len, struct async_submit_ctl *submit); - struct dma_async_tx_descriptor *async_trigger_callback(struct async_submit_ctl *submit); struct dma_async_tx_descriptor * diff --git a/include/linux/backlight.h b/include/linux/backlight.h index da9a0825e00..53b77949c79 100644 --- a/include/linux/backlight.h +++ b/include/linux/backlight.h @@ -114,7 +114,13 @@ static inline void backlight_update_status(struct backlight_device *bd) extern struct backlight_device *backlight_device_register(const char *name, struct device *dev, void *devdata, const struct backlight_ops *ops, const struct backlight_properties *props); +extern struct backlight_device *devm_backlight_device_register( + struct device *dev, const char *name, struct device *parent, + void *devdata, const struct backlight_ops *ops, + const struct backlight_properties *props); extern void backlight_device_unregister(struct backlight_device *bd); +extern void devm_backlight_device_unregister(struct device *dev, + struct backlight_device *bd); extern void backlight_force_update(struct backlight_device *bd, enum backlight_update_reason reason); diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h index f14a98a79c9..2e34db82a64 100644 --- a/include/linux/bcma/bcma.h +++ b/include/linux/bcma/bcma.h @@ -134,7 +134,10 @@ struct bcma_host_ops { #define BCMA_CORE_I2S 0x834 #define BCMA_CORE_SDR_DDR1_MEM_CTL 0x835 /* SDR/DDR1 memory controller core */ #define BCMA_CORE_SHIM 0x837 /* SHIM component in ubus/6362 */ -#define BCMA_CORE_ARM_CR4 0x83e +#define BCMA_CORE_PHY_AC 0x83B +#define BCMA_CORE_PCIE2 0x83C /* PCI Express Gen2 */ +#define BCMA_CORE_USB30_DEV 0x83D +#define BCMA_CORE_ARM_CR4 0x83E #define BCMA_CORE_DEFAULT 0xFFF #define BCMA_MAX_NR_CORES 16 diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index 5f0b0e1f7c0..f1f07d31a3a 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -44,8 +44,8 @@ extern unsigned long init_bootmem_node(pg_data_t *pgdat, unsigned long endpfn); extern unsigned long init_bootmem(unsigned long addr, unsigned long memend); -extern unsigned long free_all_bootmem_node(pg_data_t *pgdat); extern unsigned long free_all_bootmem(void); +extern void reset_all_zones_managed_pages(void); extern void free_bootmem_node(pg_data_t *pgdat, unsigned long addr, diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h index b840a496028..677b4f01b2d 100644 --- a/include/linux/brcmphy.h +++ b/include/linux/brcmphy.h @@ -1,3 +1,6 @@ +#ifndef _LINUX_BRCMPHY_H +#define _LINUX_BRCMPHY_H + #define PHY_ID_BCM50610 0x0143bd60 #define PHY_ID_BCM50610M 0x0143bd70 #define PHY_ID_BCM5241 0x0143bc30 @@ -29,3 +32,5 @@ #define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000 #define PHY_BRCM_DIS_TXCRXC_NOENRGY 0x00008000 #define PHY_BCM_FLAGS_VALID 0x80000000 + +#endif /* _LINUX_BRCMPHY_H */ diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 9e52b0626b3..91fa9a94ae9 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -139,6 +139,9 @@ BUFFER_FNS(Prio, prio) }) #define page_has_buffers(page) PagePrivate(page) +void buffer_check_dirty_writeback(struct page *page, + bool *dirty, bool *writeback); + /* * Declarations */ @@ -198,7 +201,8 @@ extern int buffer_heads_over_limit; * Generic address_space_operations implementations for buffer_head-backed * address_spaces. */ -void block_invalidatepage(struct page *page, unsigned long offset); +void block_invalidatepage(struct page *page, unsigned int offset, + unsigned int length); int block_write_full_page(struct page *page, get_block_t *get_block, struct writeback_control *wbc); int block_write_full_page_endio(struct page *page, get_block_t *get_block, diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 5047355b9a0..fd097ecfcd9 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -20,6 +20,7 @@ #include <linux/workqueue.h> #include <linux/xattr.h> #include <linux/fs.h> +#include <linux/percpu-refcount.h> #ifdef CONFIG_CGROUPS @@ -72,13 +73,8 @@ struct cgroup_subsys_state { */ struct cgroup *cgroup; - /* - * State maintained by the cgroup system to allow subsystems - * to be "busy". Should be accessed via css_get(), - * css_tryget() and css_put(). - */ - - atomic_t refcnt; + /* reference count - access via css_[try]get() and css_put() */ + struct percpu_ref refcnt; unsigned long flags; /* ID for this css, if possible */ @@ -94,56 +90,52 @@ enum { CSS_ONLINE = (1 << 1), /* between ->css_online() and ->css_offline() */ }; -/* Caller must verify that the css is not for root cgroup */ -static inline void __css_get(struct cgroup_subsys_state *css, int count) -{ - atomic_add(count, &css->refcnt); -} - -/* - * Call css_get() to hold a reference on the css; it can be used - * for a reference obtained via: - * - an existing ref-counted reference to the css - * - task->cgroups for a locked task +/** + * css_get - obtain a reference on the specified css + * @css: target css + * + * The caller must already have a reference. */ - static inline void css_get(struct cgroup_subsys_state *css) { /* We don't need to reference count the root state */ if (!(css->flags & CSS_ROOT)) - __css_get(css, 1); + percpu_ref_get(&css->refcnt); } -/* - * Call css_tryget() to take a reference on a css if your existing - * (known-valid) reference isn't already ref-counted. Returns false if - * the css has been destroyed. +/** + * css_tryget - try to obtain a reference on the specified css + * @css: target css + * + * Obtain a reference on @css if it's alive. The caller naturally needs to + * ensure that @css is accessible but doesn't have to be holding a + * reference on it - IOW, RCU protected access is good enough for this + * function. Returns %true if a reference count was successfully obtained; + * %false otherwise. */ - -extern bool __css_tryget(struct cgroup_subsys_state *css); static inline bool css_tryget(struct cgroup_subsys_state *css) { if (css->flags & CSS_ROOT) return true; - return __css_tryget(css); + return percpu_ref_tryget(&css->refcnt); } -/* - * css_put() should be called to release a reference taken by - * css_get() or css_tryget() +/** + * css_put - put a css reference + * @css: target css + * + * Put a reference obtained via css_get() and css_tryget(). */ - -extern void __css_put(struct cgroup_subsys_state *css); static inline void css_put(struct cgroup_subsys_state *css) { if (!(css->flags & CSS_ROOT)) - __css_put(css); + percpu_ref_put(&css->refcnt); } /* bits in struct cgroup flags field */ enum { /* Control Group is dead */ - CGRP_REMOVED, + CGRP_DEAD, /* * Control Group has previously had a child cgroup or a task, * but no longer (only if CGRP_NOTIFY_ON_RELEASE is set) @@ -169,12 +161,6 @@ struct cgroup_name { struct cgroup { unsigned long flags; /* "unsigned long" so bitops work */ - /* - * count users of this cgroup. >0 means busy, but doesn't - * necessarily indicate the number of tasks in the cgroup - */ - atomic_t count; - int id; /* ida allocated in-hierarchy ID */ /* @@ -189,6 +175,14 @@ struct cgroup { struct dentry *dentry; /* cgroup fs entry, RCU protected */ /* + * Monotonically increasing unique serial number which defines a + * uniform order among all cgroups. It's guaranteed that all + * ->children lists are in the ascending order of ->serial_nr. + * It's used to allow interrupting and resuming iterations. + */ + u64 serial_nr; + + /* * This is a copy of dentry->d_name, and it's needed because * we can't use dentry->d_name in cgroup_path(). * @@ -207,13 +201,10 @@ struct cgroup { struct cgroupfs_root *root; /* - * List of cg_cgroup_links pointing at css_sets with - * tasks in this cgroup. Protected by css_set_lock + * List of cgrp_cset_links pointing at css_sets with tasks in this + * cgroup. Protected by css_set_lock. */ - struct list_head css_sets; - - struct list_head allcg_node; /* cgroupfs_root->allcg_list */ - struct list_head cft_q_node; /* used during cftype add/rm */ + struct list_head cset_links; /* * Linked list running through all cgroups that can @@ -229,9 +220,10 @@ struct cgroup { struct list_head pidlists; struct mutex pidlist_mutex; - /* For RCU-protected deletion */ + /* For css percpu_ref killing and RCU-protected deletion */ struct rcu_head rcu_head; - struct work_struct free_work; + struct work_struct destroy_work; + atomic_t css_kill_cnt; /* List of events which userspace want to receive */ struct list_head event_list; @@ -269,18 +261,33 @@ enum { * * - Remount is disallowed. * - * - memcg: use_hierarchy is on by default and the cgroup file for - * the flag is not created. + * - rename(2) is disallowed. * - * The followings are planned changes. + * - "tasks" is removed. Everything should be at process + * granularity. Use "cgroup.procs" instead. * - * - release_agent will be disallowed once replacement notification - * mechanism is implemented. + * - "release_agent" and "notify_on_release" are removed. + * Replacement notification mechanism will be implemented. + * + * - cpuset: tasks will be kept in empty cpusets when hotplug happens + * and take masks of ancestors with non-empty cpus/mems, instead of + * being moved to an ancestor. + * + * - cpuset: a task can be moved into an empty cpuset, and again it + * takes masks of ancestors. + * + * - memcg: use_hierarchy is on by default and the cgroup file for + * the flag is not created. */ CGRP_ROOT_SANE_BEHAVIOR = (1 << 0), CGRP_ROOT_NOPREFIX = (1 << 1), /* mounted subsystems have no named prefix */ CGRP_ROOT_XATTR = (1 << 2), /* supports extended attributes */ + + /* mount options live below bit 16 */ + CGRP_ROOT_OPTION_MASK = (1 << 16) - 1, + + CGRP_ROOT_SUBSYS_BOUND = (1 << 16), /* subsystems finished binding */ }; /* @@ -291,18 +298,12 @@ enum { struct cgroupfs_root { struct super_block *sb; - /* - * The bitmask of subsystems intended to be attached to this - * hierarchy - */ + /* The bitmask of subsystems attached to this hierarchy */ unsigned long subsys_mask; /* Unique id for this hierarchy. */ int hierarchy_id; - /* The bitmask of subsystems currently attached to this hierarchy */ - unsigned long actual_subsys_mask; - /* A list running through the attached subsystems */ struct list_head subsys_list; @@ -315,9 +316,6 @@ struct cgroupfs_root { /* A list running through the active hierarchies */ struct list_head root_list; - /* All cgroups on this root, cgroup_mutex protected */ - struct list_head allcg_list; - /* Hierarchy-specific flags */ unsigned long flags; @@ -357,11 +355,10 @@ struct css_set { struct list_head tasks; /* - * List of cg_cgroup_link objects on link chains from - * cgroups referenced from this css_set. Protected by - * css_set_lock + * List of cgrp_cset_links pointing at cgroups referenced from this + * css_set. Protected by css_set_lock. */ - struct list_head cg_links; + struct list_head cgrp_links; /* * Set of subsystem states, one for each subsystem. This array @@ -394,9 +391,11 @@ struct cgroup_map_cb { */ /* cftype->flags */ -#define CFTYPE_ONLY_ON_ROOT (1U << 0) /* only create on root cg */ -#define CFTYPE_NOT_ON_ROOT (1U << 1) /* don't create on root cg */ -#define CFTYPE_INSANE (1U << 2) /* don't create if sane_behavior */ +enum { + CFTYPE_ONLY_ON_ROOT = (1 << 0), /* only create on root cg */ + CFTYPE_NOT_ON_ROOT = (1 << 1), /* don't create on root cg */ + CFTYPE_INSANE = (1 << 2), /* don't create if sane_behavior */ +}; #define MAX_CFTYPE_NAME 64 @@ -442,13 +441,13 @@ struct cftype { * entry. The key/value pairs (and their ordering) should not * change between reboots. */ - int (*read_map)(struct cgroup *cont, struct cftype *cft, + int (*read_map)(struct cgroup *cgrp, struct cftype *cft, struct cgroup_map_cb *cb); /* * read_seq_string() is used for outputting a simple sequence * using seqfile. */ - int (*read_seq_string)(struct cgroup *cont, struct cftype *cft, + int (*read_seq_string)(struct cgroup *cgrp, struct cftype *cft, struct seq_file *m); ssize_t (*write)(struct cgroup *cgrp, struct cftype *cft, @@ -538,10 +537,11 @@ static inline const char *cgroup_name(const struct cgroup *cgrp) int cgroup_add_cftypes(struct cgroup_subsys *ss, struct cftype *cfts); int cgroup_rm_cftypes(struct cgroup_subsys *ss, struct cftype *cfts); -int cgroup_is_removed(const struct cgroup *cgrp); bool cgroup_is_descendant(struct cgroup *cgrp, struct cgroup *ancestor); int cgroup_path(const struct cgroup *cgrp, char *buf, int buflen); +int task_cgroup_path_from_hierarchy(struct task_struct *task, int hierarchy_id, + char *buf, size_t buflen); int cgroup_task_count(const struct cgroup *cgrp); @@ -646,22 +646,60 @@ static inline struct cgroup_subsys_state *cgroup_subsys_state( return cgrp->subsys[subsys_id]; } -/* - * function to get the cgroup_subsys_state which allows for extra - * rcu_dereference_check() conditions, such as locks used during the - * cgroup_subsys::attach() methods. +/** + * task_css_set_check - obtain a task's css_set with extra access conditions + * @task: the task to obtain css_set for + * @__c: extra condition expression to be passed to rcu_dereference_check() + * + * A task's css_set is RCU protected, initialized and exited while holding + * task_lock(), and can only be modified while holding both cgroup_mutex + * and task_lock() while the task is alive. This macro verifies that the + * caller is inside proper critical section and returns @task's css_set. + * + * The caller can also specify additional allowed conditions via @__c, such + * as locks used during the cgroup_subsys::attach() methods. */ #ifdef CONFIG_PROVE_RCU extern struct mutex cgroup_mutex; -#define task_subsys_state_check(task, subsys_id, __c) \ - rcu_dereference_check((task)->cgroups->subsys[(subsys_id)], \ - lockdep_is_held(&(task)->alloc_lock) || \ - lockdep_is_held(&cgroup_mutex) || (__c)) +#define task_css_set_check(task, __c) \ + rcu_dereference_check((task)->cgroups, \ + lockdep_is_held(&(task)->alloc_lock) || \ + lockdep_is_held(&cgroup_mutex) || (__c)) #else -#define task_subsys_state_check(task, subsys_id, __c) \ - rcu_dereference((task)->cgroups->subsys[(subsys_id)]) +#define task_css_set_check(task, __c) \ + rcu_dereference((task)->cgroups) #endif +/** + * task_subsys_state_check - obtain css for (task, subsys) w/ extra access conds + * @task: the target task + * @subsys_id: the target subsystem ID + * @__c: extra condition expression to be passed to rcu_dereference_check() + * + * Return the cgroup_subsys_state for the (@task, @subsys_id) pair. The + * synchronization rules are the same as task_css_set_check(). + */ +#define task_subsys_state_check(task, subsys_id, __c) \ + task_css_set_check((task), (__c))->subsys[(subsys_id)] + +/** + * task_css_set - obtain a task's css_set + * @task: the task to obtain css_set for + * + * See task_css_set_check(). + */ +static inline struct css_set *task_css_set(struct task_struct *task) +{ + return task_css_set_check(task, false); +} + +/** + * task_subsys_state - obtain css for (task, subsys) + * @task: the target task + * @subsys_id: the target subsystem ID + * + * See task_subsys_state_check(). + */ static inline struct cgroup_subsys_state * task_subsys_state(struct task_struct *task, int subsys_id) { @@ -674,12 +712,14 @@ static inline struct cgroup* task_cgroup(struct task_struct *task, return task_subsys_state(task, subsys_id)->cgroup; } +struct cgroup *cgroup_next_sibling(struct cgroup *pos); + /** * cgroup_for_each_child - iterate through children of a cgroup * @pos: the cgroup * to use as the loop cursor - * @cgroup: cgroup whose children to walk + * @cgrp: cgroup whose children to walk * - * Walk @cgroup's children. Must be called under rcu_read_lock(). A child + * Walk @cgrp's children. Must be called under rcu_read_lock(). A child * cgroup which hasn't finished ->css_online() or already has finished * ->css_offline() may show up during traversal and it's each subsystem's * responsibility to verify that each @pos is alive. @@ -687,9 +727,15 @@ static inline struct cgroup* task_cgroup(struct task_struct *task, * If a subsystem synchronizes against the parent in its ->css_online() and * before starting iterating, a cgroup which finished ->css_online() is * guaranteed to be visible in the future iterations. + * + * It is allowed to temporarily drop RCU read lock during iteration. The + * caller is responsible for ensuring that @pos remains accessible until + * the start of the next iteration by, for example, bumping the css refcnt. */ -#define cgroup_for_each_child(pos, cgroup) \ - list_for_each_entry_rcu(pos, &(cgroup)->children, sibling) +#define cgroup_for_each_child(pos, cgrp) \ + for ((pos) = list_first_or_null_rcu(&(cgrp)->children, \ + struct cgroup, sibling); \ + (pos); (pos) = cgroup_next_sibling((pos))) struct cgroup *cgroup_next_descendant_pre(struct cgroup *pos, struct cgroup *cgroup); @@ -707,7 +753,7 @@ struct cgroup *cgroup_rightmost_descendant(struct cgroup *pos); * * If a subsystem synchronizes against the parent in its ->css_online() and * before starting iterating, and synchronizes against @pos on each - * iteration, any descendant cgroup which finished ->css_offline() is + * iteration, any descendant cgroup which finished ->css_online() is * guaranteed to be visible in the future iterations. * * In other words, the following guarantees that a descendant can't escape @@ -748,6 +794,10 @@ struct cgroup *cgroup_rightmost_descendant(struct cgroup *pos); * Alternatively, a subsystem may choose to use a single global lock to * synchronize ->css_online() and ->css_offline() against tree-walking * operations. + * + * It is allowed to temporarily drop RCU read lock during iteration. The + * caller is responsible for ensuring that @pos remains accessible until + * the start of the next iteration by, for example, bumping the css refcnt. */ #define cgroup_for_each_descendant_pre(pos, cgroup) \ for (pos = cgroup_next_descendant_pre(NULL, (cgroup)); (pos); \ @@ -771,7 +821,7 @@ struct cgroup *cgroup_next_descendant_post(struct cgroup *pos, /* A cgroup_iter should be treated as an opaque object */ struct cgroup_iter { - struct list_head *cg_link; + struct list_head *cset_link; struct list_head *task; }; @@ -827,7 +877,6 @@ bool css_is_ancestor(struct cgroup_subsys_state *cg, /* Get id and depth of css */ unsigned short css_id(struct cgroup_subsys_state *css); -unsigned short css_depth(struct cgroup_subsys_state *css); struct cgroup_subsys_state *cgroup_css_from_dir(struct file *f, int id); #else /* !CONFIG_CGROUPS */ @@ -838,8 +887,6 @@ static inline void cgroup_fork(struct task_struct *p) {} static inline void cgroup_post_fork(struct task_struct *p) {} static inline void cgroup_exit(struct task_struct *p, int callbacks) {} -static inline void cgroup_lock(void) {} -static inline void cgroup_unlock(void) {} static inline int cgroupstats_build(struct cgroupstats *stats, struct dentry *dentry) { diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 11860985fec..1ec14a73217 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -210,6 +210,10 @@ void of_fixed_clk_setup(struct device_node *np); * CLK_GATE_SET_TO_DISABLE - by default this clock sets the bit at bit_idx to * enable the clock. Setting this flag does the opposite: setting the bit * disable the clock and clearing it enables the clock + * CLK_GATE_HIWORD_MASK - The gate settings are only in lower 16-bit + * of this register, and mask of gate bits are in higher 16-bit of this + * register. While setting the gate bits, higher 16-bit should also be + * updated to indicate changing gate bits. */ struct clk_gate { struct clk_hw hw; @@ -220,6 +224,7 @@ struct clk_gate { }; #define CLK_GATE_SET_TO_DISABLE BIT(0) +#define CLK_GATE_HIWORD_MASK BIT(1) extern const struct clk_ops clk_gate_ops; struct clk *clk_register_gate(struct device *dev, const char *name, @@ -257,6 +262,10 @@ struct clk_div_table { * Some hardware implementations gracefully handle this case and allow a * zero divisor by not modifying their input clock * (divide by one / bypass). + * CLK_DIVIDER_HIWORD_MASK - The divider settings are only in lower 16-bit + * of this register, and mask of divider bits are in higher 16-bit of this + * register. While setting the divider bits, higher 16-bit should also be + * updated to indicate changing divider bits. */ struct clk_divider { struct clk_hw hw; @@ -271,6 +280,7 @@ struct clk_divider { #define CLK_DIVIDER_ONE_BASED BIT(0) #define CLK_DIVIDER_POWER_OF_TWO BIT(1) #define CLK_DIVIDER_ALLOW_ZERO BIT(2) +#define CLK_DIVIDER_HIWORD_MASK BIT(3) extern const struct clk_ops clk_divider_ops; struct clk *clk_register_divider(struct device *dev, const char *name, @@ -299,6 +309,10 @@ struct clk *clk_register_divider_table(struct device *dev, const char *name, * Flags: * CLK_MUX_INDEX_ONE - register index starts at 1, not 0 * CLK_MUX_INDEX_BIT - register index is a single bit (power of two) + * CLK_MUX_HIWORD_MASK - The mux settings are only in lower 16-bit of this + * register, and mask of mux bits are in higher 16-bit of this register. + * While setting the mux bits, higher 16-bit should also be updated to + * indicate changing mux bits. */ struct clk_mux { struct clk_hw hw; @@ -312,6 +326,7 @@ struct clk_mux { #define CLK_MUX_INDEX_ONE BIT(0) #define CLK_MUX_INDEX_BIT BIT(1) +#define CLK_MUX_HIWORD_MASK BIT(2) extern const struct clk_ops clk_mux_ops; @@ -423,6 +438,17 @@ struct of_device_id; typedef void (*of_clk_init_cb_t)(struct device_node *); +struct clk_onecell_data { + struct clk **clks; + unsigned int clk_num; +}; + +#define CLK_OF_DECLARE(name, compat, fn) \ + static const struct of_device_id __clk_of_table_##name \ + __used __section(__clk_of_table) \ + = { .compatible = compat, .data = fn }; + +#ifdef CONFIG_OF int of_clk_add_provider(struct device_node *np, struct clk *(*clk_src_get)(struct of_phandle_args *args, void *data), @@ -430,19 +456,39 @@ int of_clk_add_provider(struct device_node *np, void of_clk_del_provider(struct device_node *np); struct clk *of_clk_src_simple_get(struct of_phandle_args *clkspec, void *data); -struct clk_onecell_data { - struct clk **clks; - unsigned int clk_num; -}; struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data); const char *of_clk_get_parent_name(struct device_node *np, int index); void of_clk_init(const struct of_device_id *matches); -#define CLK_OF_DECLARE(name, compat, fn) \ - static const struct of_device_id __clk_of_table_##name \ - __used __section(__clk_of_table) \ - = { .compatible = compat, .data = fn }; +#else /* !CONFIG_OF */ +static inline int of_clk_add_provider(struct device_node *np, + struct clk *(*clk_src_get)(struct of_phandle_args *args, + void *data), + void *data) +{ + return 0; +} +#define of_clk_del_provider(np) \ + { while (0); } +static inline struct clk *of_clk_src_simple_get( + struct of_phandle_args *clkspec, void *data) +{ + return ERR_PTR(-ENOENT); +} +static inline struct clk *of_clk_src_onecell_get( + struct of_phandle_args *clkspec, void *data) +{ + return ERR_PTR(-ENOENT); +} +static inline const char *of_clk_get_parent_name(struct device_node *np, + int index) +{ + return NULL; +} +#define of_clk_init(matches) \ + { while (0); } +#endif /* CONFIG_OF */ #endif /* CONFIG_COMMON_CLK */ #endif /* CLK_PROVIDER_H */ diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h index 642789baec7..23a0ceee831 100644 --- a/include/linux/clk/tegra.h +++ b/include/linux/clk/tegra.h @@ -120,9 +120,13 @@ static inline void tegra_cpu_clock_resume(void) } #endif +#ifdef CONFIG_ARCH_TEGRA void tegra_periph_reset_deassert(struct clk *c); void tegra_periph_reset_assert(struct clk *c); -void tegra_clocks_init(void); +#else +static inline void tegra_periph_reset_deassert(struct clk *c) {} +static inline void tegra_periph_reset_assert(struct clk *c) {} +#endif void tegra_clocks_apply_init_table(void); #endif /* __LINUX_CLK_TEGRA_H_ */ diff --git a/include/linux/clk/zynq.h b/include/linux/clk/zynq.h index 56be7cd9aa8..e062d317ccc 100644 --- a/include/linux/clk/zynq.h +++ b/include/linux/clk/zynq.h @@ -1,4 +1,5 @@ /* + * Copyright (C) 2013 Xilinx Inc. * Copyright (C) 2012 National Instruments * * This program is free software; you can redistribute it and/or modify @@ -19,6 +20,11 @@ #ifndef __LINUX_CLK_ZYNQ_H_ #define __LINUX_CLK_ZYNQ_H_ -void __init xilinx_zynq_clocks_init(void __iomem *slcr); +#include <linux/spinlock.h> +void zynq_clock_init(void __iomem *slcr); + +struct clk *clk_register_zynq_pll(const char *name, const char *parent, + void __iomem *pll_ctrl, void __iomem *pll_status, u8 lock_index, + spinlock_t *lock); #endif diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h index 963d7143138..0857922e8ad 100644 --- a/include/linux/clockchips.h +++ b/include/linux/clockchips.h @@ -30,6 +30,7 @@ enum clock_event_nofitiers { #include <linux/notifier.h> struct clock_event_device; +struct module; /* Clock event mode commands */ enum clock_event_mode { @@ -83,6 +84,7 @@ enum clock_event_mode { * @irq: IRQ number (only for non CPU local devices) * @cpumask: cpumask to indicate for which CPUs this device works * @list: list head for the management code + * @owner: module reference */ struct clock_event_device { void (*event_handler)(struct clock_event_device *); @@ -112,6 +114,7 @@ struct clock_event_device { int irq; const struct cpumask *cpumask; struct list_head list; + struct module *owner; } ____cacheline_aligned; /* @@ -138,6 +141,7 @@ static inline unsigned long div_sc(unsigned long ticks, unsigned long nsec, extern u64 clockevent_delta2ns(unsigned long latch, struct clock_event_device *evt); extern void clockevents_register_device(struct clock_event_device *dev); +extern int clockevents_unbind_device(struct clock_event_device *ced, int cpu); extern void clockevents_config(struct clock_event_device *dev, u32 freq); extern void clockevents_config_and_register(struct clock_event_device *dev, @@ -150,7 +154,6 @@ extern void clockevents_exchange_device(struct clock_event_device *old, struct clock_event_device *new); extern void clockevents_set_mode(struct clock_event_device *dev, enum clock_event_mode mode); -extern int clockevents_register_notifier(struct notifier_block *nb); extern int clockevents_program_event(struct clock_event_device *dev, ktime_t expires, bool force); diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 7279b94c01d..dbbf8aa7731 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -21,6 +21,7 @@ /* clocksource cycle base type */ typedef u64 cycle_t; struct clocksource; +struct module; #ifdef CONFIG_ARCH_CLOCKSOURCE_DATA #include <asm/clocksource.h> @@ -162,6 +163,7 @@ extern u64 timecounter_cyc2time(struct timecounter *tc, * @suspend: suspend function for the clocksource, if necessary * @resume: resume function for the clocksource, if necessary * @cycle_last: most recent cycle counter value seen by ::read() + * @owner: module reference, must be set by clocksource in modules */ struct clocksource { /* @@ -195,6 +197,7 @@ struct clocksource { cycle_t cs_last; cycle_t wd_last; #endif + struct module *owner; } ____cacheline_aligned; /* @@ -207,6 +210,7 @@ struct clocksource { #define CLOCK_SOURCE_VALID_FOR_HRES 0x20 #define CLOCK_SOURCE_UNSTABLE 0x40 #define CLOCK_SOURCE_SUSPEND_NONSTOP 0x80 +#define CLOCK_SOURCE_RESELECT 0x100 /* simplify initialization of mask field */ #define CLOCKSOURCE_MASK(bits) (cycle_t)((bits) < 64 ? ((1ULL<<(bits))-1) : -1) @@ -279,7 +283,7 @@ static inline s64 clocksource_cyc2ns(cycle_t cycles, u32 mult, u32 shift) extern int clocksource_register(struct clocksource*); -extern void clocksource_unregister(struct clocksource*); +extern int clocksource_unregister(struct clocksource*); extern void clocksource_touch_watchdog(void); extern struct clocksource* clocksource_get_next(void); extern void clocksource_change_rating(struct clocksource *cs, int rating); @@ -321,7 +325,7 @@ static inline void __clocksource_updatefreq_khz(struct clocksource *cs, u32 khz) } -extern void timekeeping_notify(struct clocksource *clock); +extern int timekeeping_notify(struct clocksource *clock); extern cycle_t clocksource_mmio_readl_up(struct clocksource *); extern cycle_t clocksource_mmio_readl_down(struct clocksource *); diff --git a/include/linux/completion.h b/include/linux/completion.h index 33f0280fd53..3cd574d5b19 100644 --- a/include/linux/completion.h +++ b/include/linux/completion.h @@ -5,7 +5,7 @@ * (C) Copyright 2001 Linus Torvalds * * Atomic wait-for-completion handler data structures. - * See kernel/sched.c for details. + * See kernel/sched/core.c for details. */ #include <linux/wait.h> diff --git a/include/linux/console.h b/include/linux/console.h index 73bab0f58af..7571a16bd65 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -75,10 +75,7 @@ extern const struct consw newport_con; /* SGI Newport console */ extern const struct consw prom_con; /* SPARC PROM console */ int con_is_bound(const struct consw *csw); -int register_con_driver(const struct consw *csw, int first, int last); -int unregister_con_driver(const struct consw *csw); int do_unregister_con_driver(const struct consw *csw); -int take_over_console(const struct consw *sw, int first, int last, int deflt); int do_take_over_console(const struct consw *sw, int first, int last, int deflt); void give_up_console(const struct consw *sw); #ifdef CONFIG_HW_CONSOLE diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h index 365f4a61bf0..fc09d7b0dac 100644 --- a/include/linux/context_tracking.h +++ b/include/linux/context_tracking.h @@ -3,6 +3,7 @@ #include <linux/sched.h> #include <linux/percpu.h> +#include <linux/vtime.h> #include <asm/ptrace.h> struct context_tracking { @@ -19,6 +20,26 @@ struct context_tracking { } state; }; +static inline void __guest_enter(void) +{ + /* + * This is running in ioctl context so we can avoid + * the call to vtime_account() with its unnecessary idle check. + */ + vtime_account_system(current); + current->flags |= PF_VCPU; +} + +static inline void __guest_exit(void) +{ + /* + * This is running in ioctl context so we can avoid + * the call to vtime_account() with its unnecessary idle check. + */ + vtime_account_system(current); + current->flags &= ~PF_VCPU; +} + #ifdef CONFIG_CONTEXT_TRACKING DECLARE_PER_CPU(struct context_tracking, context_tracking); @@ -35,6 +56,9 @@ static inline bool context_tracking_active(void) extern void user_enter(void); extern void user_exit(void); +extern void guest_enter(void); +extern void guest_exit(void); + static inline enum ctx_state exception_enter(void) { enum ctx_state prev_ctx; @@ -57,6 +81,17 @@ extern void context_tracking_task_switch(struct task_struct *prev, static inline bool context_tracking_in_user(void) { return false; } static inline void user_enter(void) { } static inline void user_exit(void) { } + +static inline void guest_enter(void) +{ + __guest_enter(); +} + +static inline void guest_exit(void) +{ + __guest_exit(); +} + static inline enum ctx_state exception_enter(void) { return 0; } static inline void exception_exit(enum ctx_state prev_ctx) { } static inline void context_tracking_task_switch(struct task_struct *prev, diff --git a/include/linux/cpu.h b/include/linux/cpu.h index c6f6e0839b6..944f283f01c 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -6,9 +6,8 @@ * definitions of processors. * * Basic handling of the devices is done in drivers/base/cpu.c - * and system devices are handled in drivers/base/sys.c. * - * CPUs are exported via sysfs in the class/cpu/devices/ + * CPUs are exported via sysfs in the devices/system/cpu * directory. */ #ifndef _LINUX_CPU_H_ @@ -175,6 +174,8 @@ extern struct bus_type cpu_subsys; extern void get_online_cpus(void); extern void put_online_cpus(void); +extern void cpu_hotplug_disable(void); +extern void cpu_hotplug_enable(void); #define hotcpu_notifier(fn, pri) cpu_notifier(fn, pri) #define register_hotcpu_notifier(nb) register_cpu_notifier(nb) #define unregister_hotcpu_notifier(nb) unregister_cpu_notifier(nb) @@ -198,6 +199,8 @@ static inline void cpu_hotplug_driver_unlock(void) #define get_online_cpus() do { } while (0) #define put_online_cpus() do { } while (0) +#define cpu_hotplug_disable() do { } while (0) +#define cpu_hotplug_enable() do { } while (0) #define hotcpu_notifier(fn, pri) do { (void)(fn); } while (0) /* These aren't inline functions due to a GCC bug. */ #define register_hotcpu_notifier(nb) ({ (void)(nb); 0; }) diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 037d36ae63e..4d7390bc172 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -1,8 +1,8 @@ /* - * linux/include/linux/cpufreq.h + * linux/include/linux/cpufreq.h * - * Copyright (C) 2001 Russell King - * (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de> + * Copyright (C) 2001 Russell King + * (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -26,7 +26,6 @@ /* Print length for names. Extra 1 space for accomodating '\n' in prints */ #define CPUFREQ_NAME_PLEN (CPUFREQ_NAME_LEN + 1) - /********************************************************************* * CPUFREQ NOTIFIER INTERFACE * *********************************************************************/ @@ -71,6 +70,10 @@ struct cpufreq_governor; /* /sys/devices/system/cpu/cpufreq: entry point for global variables */ extern struct kobject *cpufreq_global_kobject; +int cpufreq_get_global_kobject(void); +void cpufreq_put_global_kobject(void); +int cpufreq_sysfs_create_file(const struct attribute *attr); +void cpufreq_sysfs_remove_file(const struct attribute *attr); #define CPUFREQ_ETERNAL (-1) struct cpufreq_cpuinfo { @@ -107,6 +110,7 @@ struct cpufreq_policy { unsigned int policy; /* see above */ struct cpufreq_governor *governor; /* see below */ void *governor_data; + bool governor_enabled; /* governor start/stop flag */ struct work_struct update; /* if update_policy() needs to be * called, but you're in IRQ context */ @@ -115,6 +119,7 @@ struct cpufreq_policy { struct kobject kobj; struct completion kobj_unregister; + bool transition_ongoing; /* Tracks transition status */ }; #define CPUFREQ_ADJUST (0) @@ -148,17 +153,18 @@ struct cpufreq_freqs { u8 flags; /* flags of cpufreq_driver, see below. */ }; - /** - * cpufreq_scale - "old * mult / div" calculation for large values (32-bit-arch safe) + * cpufreq_scale - "old * mult / div" calculation for large values (32-bit-arch + * safe) * @old: old value * @div: divisor * @mult: multiplier * * - * new = old * mult / div + * new = old * mult / div */ -static inline unsigned long cpufreq_scale(unsigned long old, u_int div, u_int mult) +static inline unsigned long cpufreq_scale(unsigned long old, u_int div, + u_int mult) { #if BITS_PER_LONG == 32 @@ -211,14 +217,12 @@ extern int __cpufreq_driver_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation); - extern int __cpufreq_driver_getavg(struct cpufreq_policy *policy, unsigned int cpu); int cpufreq_register_governor(struct cpufreq_governor *governor); void cpufreq_unregister_governor(struct cpufreq_governor *governor); - /********************************************************************* * CPUFREQ DRIVER INTERFACE * *********************************************************************/ @@ -229,7 +233,7 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor); struct freq_attr; struct cpufreq_driver { - struct module *owner; + struct module *owner; char name[CPUFREQ_NAME_LEN]; u8 flags; /* @@ -277,11 +281,11 @@ struct cpufreq_driver { int cpufreq_register_driver(struct cpufreq_driver *driver_data); int cpufreq_unregister_driver(struct cpufreq_driver *driver_data); - void cpufreq_notify_transition(struct cpufreq_policy *policy, struct cpufreq_freqs *freqs, unsigned int state); -static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy, unsigned int min, unsigned int max) +static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy, + unsigned int min, unsigned int max) { if (policy->min < min) policy->min = min; @@ -337,12 +341,16 @@ const char *cpufreq_get_current_driver(void); /********************************************************************* * CPUFREQ 2.6. INTERFACE * *********************************************************************/ +u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy); int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu); int cpufreq_update_policy(unsigned int cpu); bool have_governor_per_policy(void); +struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy); #ifdef CONFIG_CPU_FREQ -/* query the current CPU frequency (in kHz). If zero, cpufreq couldn't detect it */ +/* + * query the current CPU frequency (in kHz). If zero, cpufreq couldn't detect it + */ unsigned int cpufreq_get(unsigned int cpu); #else static inline unsigned int cpufreq_get(unsigned int cpu) @@ -351,7 +359,9 @@ static inline unsigned int cpufreq_get(unsigned int cpu) } #endif -/* query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it */ +/* + * query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it + */ #ifdef CONFIG_CPU_FREQ unsigned int cpufreq_quick_get(unsigned int cpu); unsigned int cpufreq_quick_get_max(unsigned int cpu); @@ -366,16 +376,14 @@ static inline unsigned int cpufreq_quick_get_max(unsigned int cpu) } #endif - /********************************************************************* * CPUFREQ DEFAULT GOVERNOR * *********************************************************************/ - /* - Performance governor is fallback governor if any other gov failed to - auto load due latency restrictions -*/ + * Performance governor is fallback governor if any other gov failed to auto + * load due latency restrictions + */ #ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE extern struct cpufreq_governor cpufreq_gov_performance; #endif @@ -395,7 +403,6 @@ extern struct cpufreq_governor cpufreq_gov_conservative; #define CPUFREQ_DEFAULT_GOVERNOR (&cpufreq_gov_conservative) #endif - /********************************************************************* * FREQUENCY TABLE HELPERS * *********************************************************************/ @@ -404,7 +411,7 @@ extern struct cpufreq_governor cpufreq_gov_conservative; #define CPUFREQ_TABLE_END ~1 struct cpufreq_frequency_table { - unsigned int index; /* any */ + unsigned int driver_data; /* driver specific data, not used by core */ unsigned int frequency; /* kHz - doesn't need to be in ascending * order */ }; @@ -432,4 +439,7 @@ void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy); void cpufreq_frequency_table_put_attr(unsigned int cpu); + +ssize_t cpufreq_show_cpus(const struct cpumask *mask, char *buf); + #endif /* _LINUX_CPUFREQ_H */ diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 8f0406230a0..0bc4b74668e 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -111,6 +111,9 @@ struct cpuidle_driver { struct cpuidle_state states[CPUIDLE_STATE_MAX]; int state_count; int safe_state_index; + + /* the driver handles the cpus in cpumask */ + struct cpumask *cpumask; }; #ifdef CONFIG_CPU_IDLE @@ -135,9 +138,6 @@ extern void cpuidle_disable_device(struct cpuidle_device *dev); extern int cpuidle_play_dead(void); extern struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev); -extern int cpuidle_register_cpu_driver(struct cpuidle_driver *drv, int cpu); -extern void cpuidle_unregister_cpu_driver(struct cpuidle_driver *drv, int cpu); - #else static inline void disable_cpuidle(void) { } static inline int cpuidle_idle_call(void) { return -ENODEV; } diff --git a/include/linux/crc-t10dif.h b/include/linux/crc-t10dif.h index a9c96d865ee..b3cb71f0d3b 100644 --- a/include/linux/crc-t10dif.h +++ b/include/linux/crc-t10dif.h @@ -3,6 +3,10 @@ #include <linux/types.h> +#define CRC_T10DIF_DIGEST_SIZE 2 +#define CRC_T10DIF_BLOCK_SIZE 1 + +__u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer, size_t len); __u16 crc_t10dif(unsigned char const *, size_t); #endif diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 1a6bb81f0fe..3092df3614a 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -146,10 +146,8 @@ enum dentry_d_lock_class struct dentry_operations { int (*d_revalidate)(struct dentry *, unsigned int); int (*d_weak_revalidate)(struct dentry *, unsigned int); - int (*d_hash)(const struct dentry *, const struct inode *, - struct qstr *); - int (*d_compare)(const struct dentry *, const struct inode *, - const struct dentry *, const struct inode *, + int (*d_hash)(const struct dentry *, struct qstr *); + int (*d_compare)(const struct dentry *, const struct dentry *, unsigned int, const char *, const struct qstr *); int (*d_delete)(const struct dentry *); void (*d_release)(struct dentry *); @@ -246,6 +244,8 @@ extern struct dentry * d_make_root(struct inode *); /* <clickety>-<click> the ramfs-type tree */ extern void d_genocide(struct dentry *); +extern void d_tmpfile(struct dentry *, struct inode *); + extern struct dentry *d_find_alias(struct inode *); extern void d_prune_aliases(struct inode *); @@ -300,8 +300,7 @@ extern struct dentry *d_lookup(const struct dentry *, const struct qstr *); extern struct dentry *d_hash_and_lookup(struct dentry *, struct qstr *); extern struct dentry *__d_lookup(const struct dentry *, const struct qstr *); extern struct dentry *__d_lookup_rcu(const struct dentry *parent, - const struct qstr *name, - unsigned *seq, struct inode *inode); + const struct qstr *name, unsigned *seq); /** * __d_rcu_to_refcount - take a refcount on dentry if sequence check is ok @@ -325,6 +324,11 @@ static inline int __d_rcu_to_refcount(struct dentry *dentry, unsigned seq) return ret; } +static inline unsigned d_count(struct dentry *dentry) +{ + return dentry->d_count; +} + /* validate "insecure" dentry pointer */ extern int d_validate(struct dentry *, struct dentry *); diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h index 21ca773f77b..822c1354f3a 100644 --- a/include/linux/debug_locks.h +++ b/include/linux/debug_locks.h @@ -51,7 +51,7 @@ struct task_struct; extern void debug_show_all_locks(void); extern void debug_show_held_locks(struct task_struct *task); extern void debug_check_no_locks_freed(const void *from, unsigned long len); -extern void debug_check_no_locks_held(struct task_struct *task); +extern void debug_check_no_locks_held(void); #else static inline void debug_show_all_locks(void) { @@ -67,7 +67,7 @@ debug_check_no_locks_freed(const void *from, unsigned long len) } static inline void -debug_check_no_locks_held(struct task_struct *task) +debug_check_no_locks_held(void) { } #endif diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index 63f2465807d..d68b4ea7343 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -79,6 +79,8 @@ struct dentry *debugfs_create_x64(const char *name, umode_t mode, struct dentry *parent, u64 *value); struct dentry *debugfs_create_size_t(const char *name, umode_t mode, struct dentry *parent, size_t *value); +struct dentry *debugfs_create_atomic_t(const char *name, umode_t mode, + struct dentry *parent, atomic_t *value); struct dentry *debugfs_create_bool(const char *name, umode_t mode, struct dentry *parent, u32 *value); diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index fe8c4476f7e..5f1ab92107e 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -181,6 +181,8 @@ extern struct devfreq *devfreq_add_device(struct device *dev, const char *governor_name, void *data); extern int devfreq_remove_device(struct devfreq *devfreq); + +/* Supposed to be called by PM_SLEEP/PM_RUNTIME callbacks */ extern int devfreq_suspend_device(struct devfreq *devfreq); extern int devfreq_resume_device(struct devfreq *devfreq); diff --git a/include/linux/device.h b/include/linux/device.h index c0a12612532..bcf8c0d4cd9 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -71,6 +71,10 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *); * the specific driver's probe to initial the matched device. * @remove: Called when a device removed from this bus. * @shutdown: Called at shut-down time to quiesce the device. + * + * @online: Called to put the device back online (after offlining it). + * @offline: Called to put the device offline for hot-removal. May fail. + * * @suspend: Called when a device on this bus wants to go to sleep mode. * @resume: Called to bring a device on this bus out of sleep mode. * @pm: Power management operations of this bus, callback the specific @@ -80,6 +84,7 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *); * bus-specific setup * @p: The private data of the driver core, only the driver core can * touch this. + * @lock_key: Lock class key for use by the lock validator * * A bus is a channel between the processor and one or more devices. For the * purposes of the device model, all devices are connected via a bus, even if @@ -104,6 +109,9 @@ struct bus_type { int (*remove)(struct device *dev); void (*shutdown)(struct device *dev); + int (*online)(struct device *dev); + int (*offline)(struct device *dev); + int (*suspend)(struct device *dev, pm_message_t state); int (*resume)(struct device *dev); @@ -635,6 +643,7 @@ struct acpi_dev_node { * segment limitations. * @dma_pools: Dma pools (if dma'ble device). * @dma_mem: Internal for coherent mem override. + * @cma_area: Contiguous memory area for dma allocations * @archdata: For arch-specific additions. * @of_node: Associated device tree node. * @acpi_node: Associated ACPI device node. @@ -648,6 +657,10 @@ struct acpi_dev_node { * @release: Callback to free the device after all references have * gone away. This should be set by the allocator of the * device (i.e. the bus driver that discovered the device). + * @iommu_group: IOMMU group the device belongs to. + * + * @offline_disabled: If set, the device is permanently online. + * @offline: Set after successful invocation of bus type's .offline(). * * At the lowest level, every device in a Linux system is represented by an * instance of struct device. The device structure contains the information @@ -720,6 +733,9 @@ struct device { void (*release)(struct device *dev); struct iommu_group *iommu_group; + + bool offline_disabled:1; + bool offline:1; }; static inline struct device *kobj_to_dev(struct kobject *kobj) @@ -856,6 +872,15 @@ extern const char *device_get_devnode(struct device *dev, extern void *dev_get_drvdata(const struct device *dev); extern int dev_set_drvdata(struct device *dev, void *data); +static inline bool device_supports_offline(struct device *dev) +{ + return dev->bus && dev->bus->offline && dev->bus->online; +} + +extern void lock_device_hotplug(void); +extern void unlock_device_hotplug(void); +extern int device_offline(struct device *dev); +extern int device_online(struct device *dev); /* * Root device objects for grouping under /sys/devices */ diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 96d3e4ab11a..cb286b1acdb 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -66,7 +66,6 @@ enum dma_transaction_type { DMA_PQ, DMA_XOR_VAL, DMA_PQ_VAL, - DMA_MEMSET, DMA_INTERRUPT, DMA_SG, DMA_PRIVATE, @@ -520,7 +519,6 @@ struct dma_tx_state { * @device_prep_dma_xor_val: prepares a xor validation operation * @device_prep_dma_pq: prepares a pq operation * @device_prep_dma_pq_val: prepares a pqzero_sum operation - * @device_prep_dma_memset: prepares a memset operation * @device_prep_dma_interrupt: prepares an end of chain interrupt operation * @device_prep_slave_sg: prepares a slave dma operation * @device_prep_dma_cyclic: prepare a cyclic dma operation suitable for audio. @@ -573,9 +571,6 @@ struct dma_device { struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src, unsigned int src_cnt, const unsigned char *scf, size_t len, enum sum_check_flags *pqres, unsigned long flags); - struct dma_async_tx_descriptor *(*device_prep_dma_memset)( - struct dma_chan *chan, dma_addr_t dest, int value, size_t len, - unsigned long flags); struct dma_async_tx_descriptor *(*device_prep_dma_interrupt)( struct dma_chan *chan, unsigned long flags); struct dma_async_tx_descriptor *(*device_prep_dma_sg)( diff --git a/include/linux/dw_apb_timer.h b/include/linux/dw_apb_timer.h index dd755ce2a5e..1f79b20918b 100644 --- a/include/linux/dw_apb_timer.h +++ b/include/linux/dw_apb_timer.h @@ -51,7 +51,5 @@ dw_apb_clocksource_init(unsigned rating, const char *name, void __iomem *base, void dw_apb_clocksource_register(struct dw_apb_clocksource *dw_cs); void dw_apb_clocksource_start(struct dw_apb_clocksource *dw_cs); cycle_t dw_apb_clocksource_read(struct dw_apb_clocksource *dw_cs); -void dw_apb_clocksource_unregister(struct dw_apb_clocksource *dw_cs); -extern void dw_apb_timer_init(void); #endif /* __DW_APB_TIMER_H__ */ diff --git a/include/linux/efi.h b/include/linux/efi.h index 2bc0ad78d05..5f8f176154f 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -287,20 +287,20 @@ typedef struct { typedef struct { efi_table_hdr_t hdr; - unsigned long get_time; - unsigned long set_time; - unsigned long get_wakeup_time; - unsigned long set_wakeup_time; - unsigned long set_virtual_address_map; - unsigned long convert_pointer; - unsigned long get_variable; - unsigned long get_next_variable; - unsigned long set_variable; - unsigned long get_next_high_mono_count; - unsigned long reset_system; - unsigned long update_capsule; - unsigned long query_capsule_caps; - unsigned long query_variable_info; + void *get_time; + void *set_time; + void *get_wakeup_time; + void *set_wakeup_time; + void *set_virtual_address_map; + void *convert_pointer; + void *get_variable; + void *get_next_variable; + void *set_variable; + void *get_next_high_mono_count; + void *reset_system; + void *update_capsule; + void *query_capsule_caps; + void *query_variable_info; } efi_runtime_services_t; typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc); @@ -594,8 +594,8 @@ extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); extern int __init efi_uart_console_only (void); extern void efi_initialize_iomem_resources(struct resource *code_resource, struct resource *data_resource, struct resource *bss_resource); -extern unsigned long efi_get_time(void); -extern int efi_set_rtc_mmss(unsigned long nowtime); +extern void efi_get_time(struct timespec *now); +extern int efi_set_rtc_mmss(const struct timespec *now); extern void efi_reserve_boot_services(void); extern struct efi_memory_map memmap; diff --git a/include/linux/err.h b/include/linux/err.h index f2edce25a76..221fcfb676c 100644 --- a/include/linux/err.h +++ b/include/linux/err.h @@ -24,17 +24,17 @@ static inline void * __must_check ERR_PTR(long error) return (void *) error; } -static inline long __must_check PTR_ERR(const void *ptr) +static inline long __must_check PTR_ERR(__force const void *ptr) { return (long) ptr; } -static inline long __must_check IS_ERR(const void *ptr) +static inline long __must_check IS_ERR(__force const void *ptr) { return IS_ERR_VALUE((unsigned long)ptr); } -static inline long __must_check IS_ERR_OR_NULL(const void *ptr) +static inline long __must_check IS_ERR_OR_NULL(__force const void *ptr) { return !ptr || IS_ERR_VALUE((unsigned long)ptr); } @@ -46,13 +46,13 @@ static inline long __must_check IS_ERR_OR_NULL(const void *ptr) * Explicitly cast an error-valued pointer to another pointer type in such a * way as to make it clear that's what's going on. */ -static inline void * __must_check ERR_CAST(const void *ptr) +static inline void * __must_check ERR_CAST(__force const void *ptr) { /* cast away the const */ return (void *) ptr; } -static inline int __must_check PTR_RET(const void *ptr) +static inline int __must_check PTR_RET(__force const void *ptr) { if (IS_ERR(ptr)) return PTR_ERR(ptr); diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index df6fab82f87..383d5e39b28 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -20,8 +20,8 @@ #define F2FS_BLKSIZE 4096 /* support only 4KB block */ #define F2FS_MAX_EXTENSION 64 /* # of extension entries */ -#define NULL_ADDR 0x0U -#define NEW_ADDR -1U +#define NULL_ADDR ((block_t)0) /* used as block_t addresses */ +#define NEW_ADDR ((block_t)-1) /* used as block_t addresses */ #define F2FS_ROOT_INO(sbi) (sbi->root_ino_num) #define F2FS_NODE_INO(sbi) (sbi->node_ino_num) diff --git a/include/linux/filter.h b/include/linux/filter.h index c050dcc322a..f65f5a69db8 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -46,6 +46,7 @@ extern int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk); extern int sk_detach_filter(struct sock *sk); extern int sk_chk_filter(struct sock_filter *filter, unsigned int flen); extern int sk_get_filter(struct sock *sk, struct sock_filter __user *filter, unsigned len); +extern void sk_decode_filter(struct sock_filter *filt, struct sock_filter *to); #ifdef CONFIG_BPF_JIT #include <stdarg.h> diff --git a/include/linux/firmware.h b/include/linux/firmware.h index e4279fedb93..e154c1005cd 100644 --- a/include/linux/firmware.h +++ b/include/linux/firmware.h @@ -47,8 +47,6 @@ int request_firmware_nowait( void (*cont)(const struct firmware *fw, void *context)); void release_firmware(const struct firmware *fw); -int cache_firmware(const char *name); -int uncache_firmware(const char *name); #else static inline int request_firmware(const struct firmware **fw, const char *name, @@ -68,15 +66,6 @@ static inline void release_firmware(const struct firmware *fw) { } -static inline int cache_firmware(const char *name) -{ - return -ENOENT; -} - -static inline int uncache_firmware(const char *name) -{ - return -EINVAL; -} #endif #endif diff --git a/include/linux/fmc-sdb.h b/include/linux/fmc-sdb.h new file mode 100644 index 00000000000..1974317a9b3 --- /dev/null +++ b/include/linux/fmc-sdb.h @@ -0,0 +1,36 @@ +/* + * This file is separate from sdb.h, because I want that one to remain + * unchanged (as far as possible) from the official sdb distribution + * + * This file and associated functionality are a playground for me to + * understand stuff which will later be implemented in more generic places. + */ +#include <linux/sdb.h> + +/* This is the union of all currently defined types */ +union sdb_record { + struct sdb_interconnect ic; + struct sdb_device dev; + struct sdb_bridge bridge; + struct sdb_integration integr; + struct sdb_empty empty; +}; + +struct fmc_device; + +/* Every sdb table is turned into this structure */ +struct sdb_array { + int len; + int level; + unsigned long baseaddr; + struct fmc_device *fmc; /* the device that hosts it */ + struct sdb_array *parent; /* NULL at root */ + union sdb_record *record; /* copies of the struct */ + struct sdb_array **subtree; /* only valid for bridge items */ +}; + +extern int fmc_scan_sdb_tree(struct fmc_device *fmc, unsigned long address); +extern void fmc_show_sdb_tree(const struct fmc_device *fmc); +extern signed long fmc_find_sdb_device(struct sdb_array *tree, uint64_t vendor, + uint32_t device, unsigned long *sz); +extern int fmc_free_sdb_tree(struct fmc_device *fmc); diff --git a/include/linux/fmc.h b/include/linux/fmc.h new file mode 100644 index 00000000000..a5f0aa5c2a8 --- /dev/null +++ b/include/linux/fmc.h @@ -0,0 +1,237 @@ +/* + * Copyright (C) 2012 CERN (www.cern.ch) + * Author: Alessandro Rubini <rubini@gnudd.com> + * + * Released according to the GNU GPL, version 2 or any later version. + * + * This work is part of the White Rabbit project, a research effort led + * by CERN, the European Institute for Nuclear Research. + */ +#ifndef __LINUX_FMC_H__ +#define __LINUX_FMC_H__ +#include <linux/types.h> +#include <linux/moduleparam.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/io.h> + +struct fmc_device; +struct fmc_driver; + +/* + * This bus abstraction is developed separately from drivers, so we need + * to check the version of the data structures we receive. + */ + +#define FMC_MAJOR 3 +#define FMC_MINOR 0 +#define FMC_VERSION ((FMC_MAJOR << 16) | FMC_MINOR) +#define __FMC_MAJOR(x) ((x) >> 16) +#define __FMC_MINOR(x) ((x) & 0xffff) + +/* + * The device identification, as defined by the IPMI FRU (Field Replaceable + * Unit) includes four different strings to describe the device. Here we + * only match the "Board Manufacturer" and the "Board Product Name", + * ignoring the "Board Serial Number" and "Board Part Number". All 4 are + * expected to be strings, so they are treated as zero-terminated C strings. + * Unspecified string (NULL) means "any", so if both are unspecified this + * is a catch-all driver. So null entries are allowed and we use array + * and length. This is unlike pci and usb that use null-terminated arrays + */ +struct fmc_fru_id { + char *manufacturer; + char *product_name; +}; + +/* + * If the FPGA is already programmed (think Etherbone or the second + * SVEC slot), we can match on SDB devices in the memory image. This + * match uses an array of devices that must all be present, and the + * match is based on vendor and device only. Further checks are expected + * to happen in the probe function. Zero means "any" and catch-all is allowed. + */ +struct fmc_sdb_one_id { + uint64_t vendor; + uint32_t device; +}; +struct fmc_sdb_id { + struct fmc_sdb_one_id *cores; + int cores_nr; +}; + +struct fmc_device_id { + struct fmc_fru_id *fru_id; + int fru_id_nr; + struct fmc_sdb_id *sdb_id; + int sdb_id_nr; +}; + +/* This sizes the module_param_array used by generic module parameters */ +#define FMC_MAX_CARDS 32 + +/* The driver is a pretty simple thing */ +struct fmc_driver { + unsigned long version; + struct device_driver driver; + int (*probe)(struct fmc_device *); + int (*remove)(struct fmc_device *); + const struct fmc_device_id id_table; + /* What follows is for generic module parameters */ + int busid_n; + int busid_val[FMC_MAX_CARDS]; + int gw_n; + char *gw_val[FMC_MAX_CARDS]; +}; +#define to_fmc_driver(x) container_of((x), struct fmc_driver, driver) + +/* These are the generic parameters, that drivers may instantiate */ +#define FMC_PARAM_BUSID(_d) \ + module_param_array_named(busid, _d.busid_val, int, &_d.busid_n, 0444) +#define FMC_PARAM_GATEWARE(_d) \ + module_param_array_named(gateware, _d.gw_val, charp, &_d.gw_n, 0444) + +/* + * Drivers may need to configure gpio pins in the carrier. To read input + * (a very uncommon operation, and definitely not in the hot paths), just + * configure one gpio only and get 0 or 1 as retval of the config method + */ +struct fmc_gpio { + char *carrier_name; /* name or NULL for virtual pins */ + int gpio; + int _gpio; /* internal use by the carrier */ + int mode; /* GPIOF_DIR_OUT etc, from <linux/gpio.h> */ + int irqmode; /* IRQF_TRIGGER_LOW and so on */ +}; + +/* The numbering of gpio pins allows access to raw pins or virtual roles */ +#define FMC_GPIO_RAW(x) (x) /* 4096 of them */ +#define __FMC_GPIO_IS_RAW(x) ((x) < 0x1000) +#define FMC_GPIO_IRQ(x) ((x) + 0x1000) /* 256 of them */ +#define FMC_GPIO_LED(x) ((x) + 0x1100) /* 256 of them */ +#define FMC_GPIO_KEY(x) ((x) + 0x1200) /* 256 of them */ +#define FMC_GPIO_TP(x) ((x) + 0x1300) /* 256 of them */ +#define FMC_GPIO_USER(x) ((x) + 0x1400) /* 256 of them */ +/* We may add SCL and SDA, or other roles if the need arises */ + +/* GPIOF_DIR_IN etc are missing before 3.0. copy from <linux/gpio.h> */ +#ifndef GPIOF_DIR_IN +# define GPIOF_DIR_OUT (0 << 0) +# define GPIOF_DIR_IN (1 << 0) +# define GPIOF_INIT_LOW (0 << 1) +# define GPIOF_INIT_HIGH (1 << 1) +#endif + +/* + * The operations are offered by each carrier and should make driver + * design completely independent of the carrier. Named GPIO pins may be + * the exception. + */ +struct fmc_operations { + uint32_t (*read32)(struct fmc_device *fmc, int offset); + void (*write32)(struct fmc_device *fmc, uint32_t value, int offset); + int (*validate)(struct fmc_device *fmc, struct fmc_driver *drv); + int (*reprogram)(struct fmc_device *f, struct fmc_driver *d, char *gw); + int (*irq_request)(struct fmc_device *fmc, irq_handler_t h, + char *name, int flags); + void (*irq_ack)(struct fmc_device *fmc); + int (*irq_free)(struct fmc_device *fmc); + int (*gpio_config)(struct fmc_device *fmc, struct fmc_gpio *gpio, + int ngpio); + int (*read_ee)(struct fmc_device *fmc, int pos, void *d, int l); + int (*write_ee)(struct fmc_device *fmc, int pos, const void *d, int l); +}; + +/* Prefer this helper rather than calling of fmc->reprogram directly */ +extern int fmc_reprogram(struct fmc_device *f, struct fmc_driver *d, char *gw, + int sdb_entry); + +/* + * The device reports all information needed to access hw. + * + * If we have eeprom_len and not contents, the core reads it. + * Then, parsing of identifiers is done by the core which fills fmc_fru_id.. + * Similarly a device that must be matched based on SDB cores must + * fill the entry point and the core will scan the bus (FIXME: sdb match) + */ +struct fmc_device { + unsigned long version; + unsigned long flags; + struct module *owner; /* char device must pin it */ + struct fmc_fru_id id; /* for EEPROM-based match */ + struct fmc_operations *op; /* carrier-provided */ + int irq; /* according to host bus. 0 == none */ + int eeprom_len; /* Usually 8kB, may be less */ + int eeprom_addr; /* 0x50, 0x52 etc */ + uint8_t *eeprom; /* Full contents or leading part */ + char *carrier_name; /* "SPEC" or similar, for special use */ + void *carrier_data; /* "struct spec *" or equivalent */ + __iomem void *fpga_base; /* May be NULL (Etherbone) */ + __iomem void *slot_base; /* Set by the driver */ + struct fmc_device **devarray; /* Allocated by the bus */ + int slot_id; /* Index in the slot array */ + int nr_slots; /* Number of slots in this carrier */ + unsigned long memlen; /* Used for the char device */ + struct device dev; /* For Linux use */ + struct device *hwdev; /* The underlying hardware device */ + unsigned long sdbfs_entry; + struct sdb_array *sdb; + uint32_t device_id; /* Filled by the device */ + char *mezzanine_name; /* Defaults to ``fmc'' */ + void *mezzanine_data; +}; +#define to_fmc_device(x) container_of((x), struct fmc_device, dev) + +#define FMC_DEVICE_HAS_GOLDEN 1 +#define FMC_DEVICE_HAS_CUSTOM 2 +#define FMC_DEVICE_NO_MEZZANINE 4 +#define FMC_DEVICE_MATCH_SDB 8 /* fmc-core must scan sdb in fpga */ + +/* + * If fpga_base can be used, the carrier offers no readl/writel methods, and + * this expands to a single, fast, I/O access. + */ +static inline uint32_t fmc_readl(struct fmc_device *fmc, int offset) +{ + if (unlikely(fmc->op->read32)) + return fmc->op->read32(fmc, offset); + return readl(fmc->fpga_base + offset); +} +static inline void fmc_writel(struct fmc_device *fmc, uint32_t val, int off) +{ + if (unlikely(fmc->op->write32)) + fmc->op->write32(fmc, val, off); + else + writel(val, fmc->fpga_base + off); +} + +/* pci-like naming */ +static inline void *fmc_get_drvdata(const struct fmc_device *fmc) +{ + return dev_get_drvdata(&fmc->dev); +} + +static inline void fmc_set_drvdata(struct fmc_device *fmc, void *data) +{ + dev_set_drvdata(&fmc->dev, data); +} + +/* The 4 access points */ +extern int fmc_driver_register(struct fmc_driver *drv); +extern void fmc_driver_unregister(struct fmc_driver *drv); +extern int fmc_device_register(struct fmc_device *tdev); +extern void fmc_device_unregister(struct fmc_device *tdev); + +/* Two more for device sets, all driven by the same FPGA */ +extern int fmc_device_register_n(struct fmc_device **devs, int n); +extern void fmc_device_unregister_n(struct fmc_device **devs, int n); + +/* Internal cross-calls between files; not exported to other modules */ +extern int fmc_match(struct device *dev, struct device_driver *drv); +extern int fmc_fill_id_info(struct fmc_device *fmc); +extern void fmc_free_id_info(struct fmc_device *fmc); +extern void fmc_dump_eeprom(const struct fmc_device *fmc); +extern void fmc_dump_sdb(const struct fmc_device *fmc); + +#endif /* __LINUX_FMC_H__ */ diff --git a/include/linux/freezer.h b/include/linux/freezer.h index e70df40d84f..7fd81b8c489 100644 --- a/include/linux/freezer.h +++ b/include/linux/freezer.h @@ -3,6 +3,7 @@ #ifndef FREEZER_H_INCLUDED #define FREEZER_H_INCLUDED +#include <linux/debug_locks.h> #include <linux/sched.h> #include <linux/wait.h> #include <linux/atomic.h> @@ -46,7 +47,11 @@ extern int freeze_kernel_threads(void); extern void thaw_processes(void); extern void thaw_kernel_threads(void); -static inline bool try_to_freeze(void) +/* + * DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION + * If try_to_freeze causes a lockdep warning it means the caller may deadlock + */ +static inline bool try_to_freeze_unsafe(void) { might_sleep(); if (likely(!freezing(current))) @@ -54,6 +59,13 @@ static inline bool try_to_freeze(void) return __refrigerator(false); } +static inline bool try_to_freeze(void) +{ + if (!(current->flags & PF_NOFREEZE)) + debug_check_no_locks_held(); + return try_to_freeze_unsafe(); +} + extern bool freeze_task(struct task_struct *p); extern bool set_freezable(void); @@ -115,6 +127,14 @@ static inline void freezer_count(void) try_to_freeze(); } +/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */ +static inline void freezer_count_unsafe(void) +{ + current->flags &= ~PF_FREEZER_SKIP; + smp_mb(); + try_to_freeze_unsafe(); +} + /** * freezer_should_skip - whether to skip a task when determining frozen * state is reached @@ -139,28 +159,86 @@ static inline bool freezer_should_skip(struct task_struct *p) } /* - * These macros are intended to be used whenever you want allow a sleeping + * These functions are intended to be used whenever you want allow a sleeping * task to be frozen. Note that neither return any clear indication of * whether a freeze event happened while in this function. */ /* Like schedule(), but should not block the freezer. */ -#define freezable_schedule() \ -({ \ - freezer_do_not_count(); \ - schedule(); \ - freezer_count(); \ -}) +static inline void freezable_schedule(void) +{ + freezer_do_not_count(); + schedule(); + freezer_count(); +} + +/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */ +static inline void freezable_schedule_unsafe(void) +{ + freezer_do_not_count(); + schedule(); + freezer_count_unsafe(); +} + +/* + * Like freezable_schedule_timeout(), but should not block the freezer. Do not + * call this with locks held. + */ +static inline long freezable_schedule_timeout(long timeout) +{ + long __retval; + freezer_do_not_count(); + __retval = schedule_timeout(timeout); + freezer_count(); + return __retval; +} + +/* + * Like schedule_timeout_interruptible(), but should not block the freezer. Do not + * call this with locks held. + */ +static inline long freezable_schedule_timeout_interruptible(long timeout) +{ + long __retval; + freezer_do_not_count(); + __retval = schedule_timeout_interruptible(timeout); + freezer_count(); + return __retval; +} /* Like schedule_timeout_killable(), but should not block the freezer. */ -#define freezable_schedule_timeout_killable(timeout) \ -({ \ - long __retval; \ - freezer_do_not_count(); \ - __retval = schedule_timeout_killable(timeout); \ - freezer_count(); \ - __retval; \ -}) +static inline long freezable_schedule_timeout_killable(long timeout) +{ + long __retval; + freezer_do_not_count(); + __retval = schedule_timeout_killable(timeout); + freezer_count(); + return __retval; +} + +/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */ +static inline long freezable_schedule_timeout_killable_unsafe(long timeout) +{ + long __retval; + freezer_do_not_count(); + __retval = schedule_timeout_killable(timeout); + freezer_count_unsafe(); + return __retval; +} + +/* + * Like schedule_hrtimeout_range(), but should not block the freezer. Do not + * call this with locks held. + */ +static inline int freezable_schedule_hrtimeout_range(ktime_t *expires, + unsigned long delta, const enum hrtimer_mode mode) +{ + int __retval; + freezer_do_not_count(); + __retval = schedule_hrtimeout_range(expires, delta, mode); + freezer_count(); + return __retval; +} /* * Freezer-friendly wrappers around wait_event_interruptible(), @@ -177,33 +255,45 @@ static inline bool freezer_should_skip(struct task_struct *p) __retval; \ }) +/* DO NOT ADD ANY NEW CALLERS OF THIS FUNCTION */ +#define wait_event_freezekillable_unsafe(wq, condition) \ +({ \ + int __retval; \ + freezer_do_not_count(); \ + __retval = wait_event_killable(wq, (condition)); \ + freezer_count_unsafe(); \ + __retval; \ +}) + #define wait_event_freezable(wq, condition) \ ({ \ int __retval; \ - for (;;) { \ - __retval = wait_event_interruptible(wq, \ - (condition) || freezing(current)); \ - if (__retval || (condition)) \ - break; \ - try_to_freeze(); \ - } \ + freezer_do_not_count(); \ + __retval = wait_event_interruptible(wq, (condition)); \ + freezer_count(); \ __retval; \ }) #define wait_event_freezable_timeout(wq, condition, timeout) \ ({ \ long __retval = timeout; \ - for (;;) { \ - __retval = wait_event_interruptible_timeout(wq, \ - (condition) || freezing(current), \ - __retval); \ - if (__retval <= 0 || (condition)) \ - break; \ - try_to_freeze(); \ - } \ + freezer_do_not_count(); \ + __retval = wait_event_interruptible_timeout(wq, (condition), \ + __retval); \ + freezer_count(); \ __retval; \ }) +#define wait_event_freezable_exclusive(wq, condition) \ +({ \ + int __retval; \ + freezer_do_not_count(); \ + __retval = wait_event_interruptible_exclusive(wq, condition); \ + freezer_count(); \ + __retval; \ +}) + + #else /* !CONFIG_FREEZER */ static inline bool frozen(struct task_struct *p) { return false; } static inline bool freezing(struct task_struct *p) { return false; } @@ -225,18 +315,37 @@ static inline void set_freezable(void) {} #define freezable_schedule() schedule() +#define freezable_schedule_unsafe() schedule() + +#define freezable_schedule_timeout(timeout) schedule_timeout(timeout) + +#define freezable_schedule_timeout_interruptible(timeout) \ + schedule_timeout_interruptible(timeout) + #define freezable_schedule_timeout_killable(timeout) \ schedule_timeout_killable(timeout) +#define freezable_schedule_timeout_killable_unsafe(timeout) \ + schedule_timeout_killable(timeout) + +#define freezable_schedule_hrtimeout_range(expires, delta, mode) \ + schedule_hrtimeout_range(expires, delta, mode) + #define wait_event_freezable(wq, condition) \ wait_event_interruptible(wq, condition) #define wait_event_freezable_timeout(wq, condition, timeout) \ wait_event_interruptible_timeout(wq, condition, timeout) +#define wait_event_freezable_exclusive(wq, condition) \ + wait_event_interruptible_exclusive(wq, condition) + #define wait_event_freezekillable(wq, condition) \ wait_event_killable(wq, condition) +#define wait_event_freezekillable_unsafe(wq, condition) \ + wait_event_killable(wq, condition) + #endif /* !CONFIG_FREEZER */ #endif /* FREEZER_H_INCLUDED */ diff --git a/include/linux/fs.h b/include/linux/fs.h index 43db02e9c9f..834c9e5113d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -364,7 +364,7 @@ struct address_space_operations { /* Unfortunately this kludge is needed for FIBMAP. Don't use it */ sector_t (*bmap)(struct address_space *, sector_t); - void (*invalidatepage) (struct page *, unsigned long); + void (*invalidatepage) (struct page *, unsigned int, unsigned int); int (*releasepage) (struct page *, gfp_t); void (*freepage)(struct page *); ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov, @@ -380,6 +380,7 @@ struct address_space_operations { int (*launder_page) (struct page *); int (*is_partially_uptodate) (struct page *, read_descriptor_t *, unsigned long); + void (*is_dirty_writeback) (struct page *, bool *, bool *); int (*error_remove_page)(struct address_space *, struct page *); /* swapfile support */ @@ -908,6 +909,7 @@ struct file_lock_operations { struct lock_manager_operations { int (*lm_compare_owner)(struct file_lock *, struct file_lock *); + unsigned long (*lm_owner_key)(struct file_lock *); void (*lm_notify)(struct file_lock *); /* unblock callback */ int (*lm_grant)(struct file_lock *, struct file_lock *, int); void (*lm_break)(struct file_lock *); @@ -926,14 +928,33 @@ int locks_in_grace(struct net *); /* that will die - we need it for nfs_lock_info */ #include <linux/nfs_fs_i.h> +/* + * struct file_lock represents a generic "file lock". It's used to represent + * POSIX byte range locks, BSD (flock) locks, and leases. It's important to + * note that the same struct is used to represent both a request for a lock and + * the lock itself, but the same object is never used for both. + * + * FIXME: should we create a separate "struct lock_request" to help distinguish + * these two uses? + * + * The i_flock list is ordered by: + * + * 1) lock type -- FL_LEASEs first, then FL_FLOCK, and finally FL_POSIX + * 2) lock owner + * 3) lock range start + * 4) lock range end + * + * Obviously, the last two criteria only matter for POSIX locks. + */ struct file_lock { struct file_lock *fl_next; /* singly linked list for this inode */ - struct list_head fl_link; /* doubly linked list of all locks */ + struct hlist_node fl_link; /* node in global lists */ struct list_head fl_block; /* circular list of blocked processes */ fl_owner_t fl_owner; unsigned int fl_flags; unsigned char fl_type; unsigned int fl_pid; + int fl_link_cpu; /* what cpu's list is this on? */ struct pid *fl_nspid; wait_queue_head_t fl_wait; struct file *fl_file; @@ -994,7 +1015,7 @@ extern void locks_release_private(struct file_lock *); extern void posix_test_lock(struct file *, struct file_lock *); extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *); extern int posix_lock_file_wait(struct file *, struct file_lock *); -extern int posix_unblock_lock(struct file *, struct file_lock *); +extern int posix_unblock_lock(struct file_lock *); extern int vfs_test_lock(struct file *, struct file_lock *); extern int vfs_lock_file(struct file *, unsigned int, struct file_lock *, struct file_lock *); extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl); @@ -1006,9 +1027,6 @@ extern int vfs_setlease(struct file *, long, struct file_lock **); extern int lease_modify(struct file_lock **, int); extern int lock_may_read(struct inode *, loff_t start, unsigned long count); extern int lock_may_write(struct inode *, loff_t start, unsigned long count); -extern void locks_delete_block(struct file_lock *waiter); -extern void lock_flocks(void); -extern void unlock_flocks(void); #else /* !CONFIG_FILE_LOCKING */ static inline int fcntl_getlk(struct file *file, struct flock __user *user) { @@ -1084,8 +1102,7 @@ static inline int posix_lock_file_wait(struct file *filp, struct file_lock *fl) return -ENOLCK; } -static inline int posix_unblock_lock(struct file *filp, - struct file_lock *waiter) +static inline int posix_unblock_lock(struct file_lock *waiter) { return -ENOENT; } @@ -1150,19 +1167,6 @@ static inline int lock_may_write(struct inode *inode, loff_t start, { return 1; } - -static inline void locks_delete_block(struct file_lock *waiter) -{ -} - -static inline void lock_flocks(void) -{ -} - -static inline void unlock_flocks(void) -{ -} - #endif /* !CONFIG_FILE_LOCKING */ @@ -1506,6 +1510,11 @@ int fiemap_check_flags(struct fiemap_extent_info *fieinfo, u32 fs_flags); * to have different dirent layouts depending on the binary type. */ typedef int (*filldir_t)(void *, const char *, int, loff_t, u64, unsigned); +struct dir_context { + const filldir_t actor; + loff_t pos; +}; + struct block_device_operations; /* These macros are for out of kernel modules to test that @@ -1521,7 +1530,7 @@ struct file_operations { ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *); ssize_t (*aio_read) (struct kiocb *, const struct iovec *, unsigned long, loff_t); ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t); - int (*readdir) (struct file *, void *, filldir_t); + int (*iterate) (struct file *, struct dir_context *); unsigned int (*poll) (struct file *, struct poll_table_struct *); long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long); long (*compat_ioctl) (struct file *, unsigned int, unsigned long); @@ -1575,6 +1584,7 @@ struct inode_operations { int (*atomic_open)(struct inode *, struct dentry *, struct file *, unsigned open_flag, umode_t create_mode, int *opened); + int (*tmpfile) (struct inode *, struct dentry *, umode_t); } ____cacheline_aligned; ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector, @@ -1738,6 +1748,7 @@ struct super_operations { #define I_REFERENCED (1 << 8) #define __I_DIO_WAKEUP 9 #define I_DIO_WAKEUP (1 << I_DIO_WAKEUP) +#define I_LINKABLE (1 << 10) #define I_DIRTY (I_DIRTY_SYNC | I_DIRTY_DATASYNC | I_DIRTY_PAGES) @@ -1891,7 +1902,6 @@ extern int current_umask(void); extern struct kobject *fs_kobj; #define MAX_RW_COUNT (INT_MAX & PAGE_CACHE_MASK) -extern int rw_verify_area(int, struct file *, loff_t *, size_t); #define FLOCK_VERIFY_READ 1 #define FLOCK_VERIFY_WRITE 2 @@ -2304,7 +2314,6 @@ extern struct file * open_exec(const char *); /* fs/dcache.c -- generic fs support functions */ extern int is_subdir(struct dentry *, struct dentry *); extern int path_is_under(struct path *, struct path *); -extern ino_t find_inode_number(struct dentry *, struct qstr *); #include <linux/err.h> @@ -2414,16 +2423,17 @@ extern ssize_t generic_file_splice_write(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int); extern ssize_t generic_splice_sendpage(struct pipe_inode_info *pipe, struct file *out, loff_t *, size_t len, unsigned int flags); -extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out, - size_t len, unsigned int flags); extern void file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping); extern loff_t noop_llseek(struct file *file, loff_t offset, int whence); extern loff_t no_llseek(struct file *file, loff_t offset, int whence); +extern loff_t vfs_setpos(struct file *file, loff_t offset, loff_t maxsize); extern loff_t generic_file_llseek(struct file *file, loff_t offset, int whence); extern loff_t generic_file_llseek_size(struct file *file, loff_t offset, int whence, loff_t maxsize, loff_t eof); +extern loff_t fixed_size_llseek(struct file *file, loff_t offset, + int whence, loff_t size); extern int generic_file_open(struct inode * inode, struct file * filp); extern int nonseekable_open(struct inode * inode, struct file * filp); @@ -2496,6 +2506,7 @@ loff_t inode_get_bytes(struct inode *inode); void inode_set_bytes(struct inode *inode, loff_t bytes); extern int vfs_readdir(struct file *, filldir_t, void *); +extern int iterate_dir(struct file *, struct dir_context *); extern int vfs_stat(const char __user *, struct kstat *); extern int vfs_lstat(const char __user *, struct kstat *); @@ -2526,7 +2537,7 @@ extern void iterate_supers_type(struct file_system_type *, extern int dcache_dir_open(struct inode *, struct file *); extern int dcache_dir_close(struct inode *, struct file *); extern loff_t dcache_dir_lseek(struct file *, loff_t, int); -extern int dcache_readdir(struct file *, void *, filldir_t); +extern int dcache_readdir(struct file *, struct dir_context *); extern int simple_setattr(struct dentry *, struct iattr *); extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *); extern int simple_statfs(struct dentry *, struct kstatfs *); @@ -2690,4 +2701,41 @@ static inline void inode_has_no_xattr(struct inode *inode) inode->i_flags |= S_NOSEC; } +static inline bool dir_emit(struct dir_context *ctx, + const char *name, int namelen, + u64 ino, unsigned type) +{ + return ctx->actor(ctx, name, namelen, ctx->pos, ino, type) == 0; +} +static inline bool dir_emit_dot(struct file *file, struct dir_context *ctx) +{ + return ctx->actor(ctx, ".", 1, ctx->pos, + file->f_path.dentry->d_inode->i_ino, DT_DIR) == 0; +} +static inline bool dir_emit_dotdot(struct file *file, struct dir_context *ctx) +{ + return ctx->actor(ctx, "..", 2, ctx->pos, + parent_ino(file->f_path.dentry), DT_DIR) == 0; +} +static inline bool dir_emit_dots(struct file *file, struct dir_context *ctx) +{ + if (ctx->pos == 0) { + if (!dir_emit_dot(file, ctx)) + return false; + ctx->pos = 1; + } + if (ctx->pos == 1) { + if (!dir_emit_dotdot(file, ctx)) + return false; + ctx->pos = 2; + } + return true; +} +static inline bool dir_relax(struct inode *inode) +{ + mutex_unlock(&inode->i_mutex); + mutex_lock(&inode->i_mutex); + return !IS_DEADDIR(inode); +} + #endif /* _LINUX_FS_H */ diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h index 5dfa0aa216b..a9ff9a36b86 100644 --- a/include/linux/fscache-cache.h +++ b/include/linux/fscache-cache.h @@ -97,7 +97,8 @@ struct fscache_operation { #define FSCACHE_OP_WAITING 4 /* cleared when op is woken */ #define FSCACHE_OP_EXCLUSIVE 5 /* exclusive op, other ops must wait */ #define FSCACHE_OP_DEC_READ_CNT 6 /* decrement object->n_reads on destruction */ -#define FSCACHE_OP_KEEP_FLAGS 0x0070 /* flags to keep when repurposing an op */ +#define FSCACHE_OP_UNUSE_COOKIE 7 /* call fscache_unuse_cookie() on completion */ +#define FSCACHE_OP_KEEP_FLAGS 0x00f0 /* flags to keep when repurposing an op */ enum fscache_operation_state state; atomic_t usage; @@ -150,7 +151,7 @@ struct fscache_retrieval { void *context; /* netfs read context (pinned) */ struct list_head to_do; /* list of things to be done by the backend */ unsigned long start_time; /* time at which retrieval started */ - unsigned n_pages; /* number of pages to be retrieved */ + atomic_t n_pages; /* number of pages to be retrieved */ }; typedef int (*fscache_page_retrieval_func_t)(struct fscache_retrieval *op, @@ -194,15 +195,14 @@ static inline void fscache_enqueue_retrieval(struct fscache_retrieval *op) static inline void fscache_retrieval_complete(struct fscache_retrieval *op, int n_pages) { - op->n_pages -= n_pages; - if (op->n_pages <= 0) + atomic_sub(n_pages, &op->n_pages); + if (atomic_read(&op->n_pages) <= 0) fscache_op_complete(&op->op, true); } /** * fscache_put_retrieval - Drop a reference to a retrieval operation * @op: The retrieval operation affected - * @n_pages: The number of pages to account for * * Drop a reference to a retrieval operation. */ @@ -314,6 +314,7 @@ struct fscache_cache_ops { struct fscache_cookie { atomic_t usage; /* number of users of this cookie */ atomic_t n_children; /* number of children of this cookie */ + atomic_t n_active; /* number of active users of netfs ptrs */ spinlock_t lock; spinlock_t stores_lock; /* lock on page store tree */ struct hlist_head backing_objects; /* object(s) backing this file/index */ @@ -326,13 +327,11 @@ struct fscache_cookie { unsigned long flags; #define FSCACHE_COOKIE_LOOKING_UP 0 /* T if non-index cookie being looked up still */ -#define FSCACHE_COOKIE_CREATING 1 /* T if non-index object being created still */ -#define FSCACHE_COOKIE_NO_DATA_YET 2 /* T if new object with no cached data yet */ -#define FSCACHE_COOKIE_PENDING_FILL 3 /* T if pending initial fill on object */ -#define FSCACHE_COOKIE_FILLING 4 /* T if filling object incrementally */ -#define FSCACHE_COOKIE_UNAVAILABLE 5 /* T if cookie is unavailable (error, etc) */ -#define FSCACHE_COOKIE_WAITING_ON_READS 6 /* T if cookie is waiting on reads */ -#define FSCACHE_COOKIE_INVALIDATING 7 /* T if cookie is being invalidated */ +#define FSCACHE_COOKIE_NO_DATA_YET 1 /* T if new object with no cached data yet */ +#define FSCACHE_COOKIE_UNAVAILABLE 2 /* T if cookie is unavailable (error, etc) */ +#define FSCACHE_COOKIE_INVALIDATING 3 /* T if cookie is being invalidated */ +#define FSCACHE_COOKIE_RELINQUISHED 4 /* T if cookie has been relinquished */ +#define FSCACHE_COOKIE_RETIRED 5 /* T if cookie was retired */ }; extern struct fscache_cookie fscache_fsdef_index; @@ -341,45 +340,40 @@ extern struct fscache_cookie fscache_fsdef_index; * Event list for fscache_object::{event_mask,events} */ enum { - FSCACHE_OBJECT_EV_REQUEUE, /* T if object should be requeued */ + FSCACHE_OBJECT_EV_NEW_CHILD, /* T if object has a new child */ + FSCACHE_OBJECT_EV_PARENT_READY, /* T if object's parent is ready */ FSCACHE_OBJECT_EV_UPDATE, /* T if object should be updated */ FSCACHE_OBJECT_EV_INVALIDATE, /* T if cache requested object invalidation */ FSCACHE_OBJECT_EV_CLEARED, /* T if accessors all gone */ FSCACHE_OBJECT_EV_ERROR, /* T if fatal error occurred during processing */ - FSCACHE_OBJECT_EV_RELEASE, /* T if netfs requested object release */ - FSCACHE_OBJECT_EV_RETIRE, /* T if netfs requested object retirement */ - FSCACHE_OBJECT_EV_WITHDRAW, /* T if cache requested object withdrawal */ + FSCACHE_OBJECT_EV_KILL, /* T if netfs relinquished or cache withdrew object */ NR_FSCACHE_OBJECT_EVENTS }; #define FSCACHE_OBJECT_EVENTS_MASK ((1UL << NR_FSCACHE_OBJECT_EVENTS) - 1) /* + * States for object state machine. + */ +struct fscache_transition { + unsigned long events; + const struct fscache_state *transit_to; +}; + +struct fscache_state { + char name[24]; + char short_name[8]; + const struct fscache_state *(*work)(struct fscache_object *object, + int event); + const struct fscache_transition transitions[]; +}; + +/* * on-disk cache file or index handle */ struct fscache_object { - enum fscache_object_state { - FSCACHE_OBJECT_INIT, /* object in initial unbound state */ - FSCACHE_OBJECT_LOOKING_UP, /* looking up object */ - FSCACHE_OBJECT_CREATING, /* creating object */ - - /* active states */ - FSCACHE_OBJECT_AVAILABLE, /* cleaning up object after creation */ - FSCACHE_OBJECT_ACTIVE, /* object is usable */ - FSCACHE_OBJECT_INVALIDATING, /* object is invalidating */ - FSCACHE_OBJECT_UPDATING, /* object is updating */ - - /* terminal states */ - FSCACHE_OBJECT_DYING, /* object waiting for accessors to finish */ - FSCACHE_OBJECT_LC_DYING, /* object cleaning up after lookup/create */ - FSCACHE_OBJECT_ABORT_INIT, /* abort the init state */ - FSCACHE_OBJECT_RELEASING, /* releasing object */ - FSCACHE_OBJECT_RECYCLING, /* retiring object */ - FSCACHE_OBJECT_WITHDRAWING, /* withdrawing object */ - FSCACHE_OBJECT_DEAD, /* object is now dead */ - FSCACHE_OBJECT__NSTATES - } state; - + const struct fscache_state *state; /* Object state machine state */ + const struct fscache_transition *oob_table; /* OOB state transition table */ int debug_id; /* debugging ID */ int n_children; /* number of child objects */ int n_ops; /* number of extant ops on object */ @@ -390,6 +384,7 @@ struct fscache_object { spinlock_t lock; /* state and operations lock */ unsigned long lookup_jif; /* time at which lookup started */ + unsigned long oob_event_mask; /* OOB events this object is interested in */ unsigned long event_mask; /* events this object is interested in */ unsigned long events; /* events to be processed by this object * (order is important - using fls) */ @@ -398,6 +393,9 @@ struct fscache_object { #define FSCACHE_OBJECT_LOCK 0 /* T if object is busy being processed */ #define FSCACHE_OBJECT_PENDING_WRITE 1 /* T if object has pending write */ #define FSCACHE_OBJECT_WAITING 2 /* T if object is waiting on its parent */ +#define FSCACHE_OBJECT_IS_LIVE 3 /* T if object is not withdrawn or relinquished */ +#define FSCACHE_OBJECT_IS_LOOKED_UP 4 /* T if object has been looked up */ +#define FSCACHE_OBJECT_IS_AVAILABLE 5 /* T if object has become active */ struct list_head cache_link; /* link in cache->object_list */ struct hlist_node cookie_link; /* link in cookie->backing_objects */ @@ -415,62 +413,40 @@ struct fscache_object { loff_t store_limit_l; /* current storage limit */ }; -extern const char *fscache_object_states[]; +extern void fscache_object_init(struct fscache_object *, struct fscache_cookie *, + struct fscache_cache *); +extern void fscache_object_destroy(struct fscache_object *); -#define fscache_object_is_active(obj) \ - (!test_bit(FSCACHE_IOERROR, &(obj)->cache->flags) && \ - (obj)->state >= FSCACHE_OBJECT_AVAILABLE && \ - (obj)->state < FSCACHE_OBJECT_DYING) +extern void fscache_object_lookup_negative(struct fscache_object *object); +extern void fscache_obtained_object(struct fscache_object *object); -#define fscache_object_is_dead(obj) \ - (test_bit(FSCACHE_IOERROR, &(obj)->cache->flags) && \ - (obj)->state >= FSCACHE_OBJECT_DYING) +static inline bool fscache_object_is_live(struct fscache_object *object) +{ + return test_bit(FSCACHE_OBJECT_IS_LIVE, &object->flags); +} -extern void fscache_object_work_func(struct work_struct *work); +static inline bool fscache_object_is_dying(struct fscache_object *object) +{ + return !fscache_object_is_live(object); +} -/** - * fscache_object_init - Initialise a cache object description - * @object: Object description - * - * Initialise a cache object description to its basic values. - * - * See Documentation/filesystems/caching/backend-api.txt for a complete - * description. - */ -static inline -void fscache_object_init(struct fscache_object *object, - struct fscache_cookie *cookie, - struct fscache_cache *cache) +static inline bool fscache_object_is_available(struct fscache_object *object) { - atomic_inc(&cache->object_count); - - object->state = FSCACHE_OBJECT_INIT; - spin_lock_init(&object->lock); - INIT_LIST_HEAD(&object->cache_link); - INIT_HLIST_NODE(&object->cookie_link); - INIT_WORK(&object->work, fscache_object_work_func); - INIT_LIST_HEAD(&object->dependents); - INIT_LIST_HEAD(&object->dep_link); - INIT_LIST_HEAD(&object->pending_ops); - object->n_children = 0; - object->n_ops = object->n_in_progress = object->n_exclusive = 0; - object->events = object->event_mask = 0; - object->flags = 0; - object->store_limit = 0; - object->store_limit_l = 0; - object->cache = cache; - object->cookie = cookie; - object->parent = NULL; + return test_bit(FSCACHE_OBJECT_IS_AVAILABLE, &object->flags); } -extern void fscache_object_lookup_negative(struct fscache_object *object); -extern void fscache_obtained_object(struct fscache_object *object); +static inline bool fscache_object_is_active(struct fscache_object *object) +{ + return fscache_object_is_available(object) && + fscache_object_is_live(object) && + !test_bit(FSCACHE_IOERROR, &object->cache->flags); +} -#ifdef CONFIG_FSCACHE_OBJECT_LIST -extern void fscache_object_destroy(struct fscache_object *object); -#else -#define fscache_object_destroy(object) do {} while(0) -#endif +static inline bool fscache_object_is_dead(struct fscache_object *object) +{ + return fscache_object_is_dying(object) && + test_bit(FSCACHE_IOERROR, &object->cache->flags); +} /** * fscache_object_destroyed - Note destruction of an object in a cache @@ -531,6 +507,33 @@ static inline void fscache_end_io(struct fscache_retrieval *op, op->end_io_func(page, op->context, error); } +/** + * fscache_use_cookie - Request usage of cookie attached to an object + * @object: Object description + * + * Request usage of the cookie attached to an object. NULL is returned if the + * relinquishment had reduced the cookie usage count to 0. + */ +static inline bool fscache_use_cookie(struct fscache_object *object) +{ + struct fscache_cookie *cookie = object->cookie; + return atomic_inc_not_zero(&cookie->n_active) != 0; +} + +/** + * fscache_unuse_cookie - Cease usage of cookie attached to an object + * @object: Object description + * + * Cease usage of the cookie attached to an object. When the users count + * reaches zero then the cookie relinquishment will be permitted to proceed. + */ +static inline void fscache_unuse_cookie(struct fscache_object *object) +{ + struct fscache_cookie *cookie = object->cookie; + if (atomic_dec_and_test(&cookie->n_active)) + wake_up_atomic_t(&cookie->n_active); +} + /* * out-of-line cache backend functions */ diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index a78680a92db..1c804b057fb 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -38,7 +38,7 @@ static inline int fsnotify_parent(struct path *path, struct dentry *dentry, __u3 static inline int fsnotify_perm(struct file *file, int mask) { struct path *path = &file->f_path; - struct inode *inode = path->dentry->d_inode; + struct inode *inode = file_inode(file); __u32 fsnotify_mask = 0; int ret; @@ -192,7 +192,7 @@ static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry) static inline void fsnotify_access(struct file *file) { struct path *path = &file->f_path; - struct inode *inode = path->dentry->d_inode; + struct inode *inode = file_inode(file); __u32 mask = FS_ACCESS; if (S_ISDIR(inode->i_mode)) @@ -210,7 +210,7 @@ static inline void fsnotify_access(struct file *file) static inline void fsnotify_modify(struct file *file) { struct path *path = &file->f_path; - struct inode *inode = path->dentry->d_inode; + struct inode *inode = file_inode(file); __u32 mask = FS_MODIFY; if (S_ISDIR(inode->i_mode)) @@ -228,7 +228,7 @@ static inline void fsnotify_modify(struct file *file) static inline void fsnotify_open(struct file *file) { struct path *path = &file->f_path; - struct inode *inode = path->dentry->d_inode; + struct inode *inode = file_inode(file); __u32 mask = FS_OPEN; if (S_ISDIR(inode->i_mode)) diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index c1d6555d256..05bcc090376 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -128,7 +128,7 @@ extern void synchronize_irq(unsigned int irq); # define synchronize_irq(irq) barrier() #endif -#if defined(CONFIG_TINY_RCU) || defined(CONFIG_TINY_PREEMPT_RCU) +#if defined(CONFIG_TINY_RCU) static inline void rcu_nmi_enter(void) { diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 528454c2caa..b60de92e2ed 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -60,9 +60,9 @@ extern pmd_t *page_check_address_pmd(struct page *page, #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER) #ifdef CONFIG_TRANSPARENT_HUGEPAGE -#define HPAGE_PMD_SHIFT HPAGE_SHIFT -#define HPAGE_PMD_MASK HPAGE_MASK -#define HPAGE_PMD_SIZE HPAGE_SIZE +#define HPAGE_PMD_SHIFT PMD_SHIFT +#define HPAGE_PMD_SIZE ((1UL) << HPAGE_PMD_SHIFT) +#define HPAGE_PMD_MASK (~(HPAGE_PMD_SIZE - 1)) extern bool is_vma_temporary_stack(struct vm_area_struct *vma); @@ -123,7 +123,7 @@ extern void __split_huge_page_pmd(struct vm_area_struct *vma, } while (0) extern void split_huge_page_pmd_mm(struct mm_struct *mm, unsigned long address, pmd_t *pmd); -#if HPAGE_PMD_ORDER > MAX_ORDER +#if HPAGE_PMD_ORDER >= MAX_ORDER #error "hugepages can't be allocated by the buddy allocator" #endif extern int hugepage_madvise(struct vm_area_struct *vma, diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 6b4890fa57e..c2b1801a160 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -55,7 +55,6 @@ void __unmap_hugepage_range_final(struct mmu_gather *tlb, void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma, unsigned long start, unsigned long end, struct page *ref_page); -int hugetlb_prefault(struct address_space *, struct vm_area_struct *); void hugetlb_report_meminfo(struct seq_file *); int hugetlb_report_node_meminfo(int, char *); void hugetlb_show_meminfo(void); @@ -69,6 +68,10 @@ void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed); int dequeue_hwpoisoned_huge_page(struct page *page); void copy_huge_page(struct page *dst, struct page *src); +#ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE +pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud); +#endif + extern unsigned long hugepages_treat_as_movable; extern const unsigned long hugetlb_zero, hugetlb_infinity; extern int sysctl_hugetlb_shm_group; @@ -110,7 +113,6 @@ static inline unsigned long hugetlb_total_pages(void) #define follow_hugetlb_page(m,v,p,vs,a,b,i,w) ({ BUG(); 0; }) #define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL) #define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; }) -#define hugetlb_prefault(mapping, vma) ({ BUG(); 0; }) static inline void hugetlb_report_meminfo(struct seq_file *m) { } @@ -358,6 +360,17 @@ static inline int hstate_index(struct hstate *h) return h - hstates; } +pgoff_t __basepage_index(struct page *page); + +/* Return page->index in PAGE_SIZE units */ +static inline pgoff_t basepage_index(struct page *page) +{ + if (!PageCompound(page)) + return page->index; + + return __basepage_index(page); +} + #else /* CONFIG_HUGETLB_PAGE */ struct hstate {}; #define alloc_huge_page_node(h, nid) NULL @@ -378,6 +391,11 @@ static inline unsigned int pages_per_huge_page(struct hstate *h) } #define hstate_index_to_shift(index) 0 #define hstate_index(h) 0 + +static inline pgoff_t basepage_index(struct page *page) +{ + return page->index; +} #endif /* CONFIG_HUGETLB_PAGE */ #endif /* _LINUX_HUGETLB_H */ diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index c2559847d7e..fae8bac907e 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -909,6 +909,7 @@ enum vmbus_channel_state { CHANNEL_OFFER_STATE, CHANNEL_OPENING_STATE, CHANNEL_OPEN_STATE, + CHANNEL_OPENED_STATE, }; struct vmbus_channel_debug_info { @@ -1046,6 +1047,38 @@ struct vmbus_channel { * preserve the earlier behavior. */ u32 target_vp; + /* + * Support for sub-channels. For high performance devices, + * it will be useful to have multiple sub-channels to support + * a scalable communication infrastructure with the host. + * The support for sub-channels is implemented as an extention + * to the current infrastructure. + * The initial offer is considered the primary channel and this + * offer message will indicate if the host supports sub-channels. + * The guest is free to ask for sub-channels to be offerred and can + * open these sub-channels as a normal "primary" channel. However, + * all sub-channels will have the same type and instance guids as the + * primary channel. Requests sent on a given channel will result in a + * response on the same channel. + */ + + /* + * Sub-channel creation callback. This callback will be called in + * process context when a sub-channel offer is received from the host. + * The guest can open the sub-channel in the context of this callback. + */ + void (*sc_creation_callback)(struct vmbus_channel *new_sc); + + spinlock_t sc_lock; + /* + * All Sub-channels of a primary channel are linked here. + */ + struct list_head sc_list; + /* + * The primary channel this sub-channel belongs to. + * This will be NULL for the primary channel. + */ + struct vmbus_channel *primary_channel; }; static inline void set_channel_read_state(struct vmbus_channel *c, bool state) @@ -1057,6 +1090,34 @@ void vmbus_onmessage(void *context); int vmbus_request_offers(void); +/* + * APIs for managing sub-channels. + */ + +void vmbus_set_sc_create_callback(struct vmbus_channel *primary_channel, + void (*sc_cr_cb)(struct vmbus_channel *new_sc)); + +/* + * Retrieve the (sub) channel on which to send an outgoing request. + * When a primary channel has multiple sub-channels, we choose a + * channel whose VCPU binding is closest to the VCPU on which + * this call is being made. + */ +struct vmbus_channel *vmbus_get_outgoing_channel(struct vmbus_channel *primary); + +/* + * Check if sub-channels have already been offerred. This API will be useful + * when the driver is unloaded after establishing sub-channels. In this case, + * when the driver is re-loaded, the driver would have to check if the + * subchannels have already been established before attempting to request + * the creation of sub-channels. + * This function returns TRUE to indicate that subchannels have already been + * created. + * This function should be invoked after setting the callback function for + * sub-channel creation. + */ +bool vmbus_are_subchannels_present(struct vmbus_channel *primary); + /* The format must be the same as struct vmdata_gpa_direct */ struct vmbus_channel_packet_page_buffer { u16 type; @@ -1327,6 +1388,15 @@ void vmbus_driver_unregister(struct hv_driver *hv_driver); 0x8e, 0x77, 0x05, 0x58, 0xeb, 0x10, 0x73, 0xf8 \ } +/* + * Synthetic FC GUID + * {2f9bcc4a-0069-4af3-b76b-6fd0be528cda} + */ +#define HV_SYNTHFC_GUID \ + .guid = { \ + 0x4A, 0xCC, 0x9B, 0x2F, 0x69, 0x00, 0xF3, 0x4A, \ + 0xB7, 0x6B, 0x6F, 0xD0, 0xBE, 0x52, 0x8C, 0xDA \ + } /* * Common header for Hyper-V ICs diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h index 12b4d55a02a..d5569734f67 100644 --- a/include/linux/if_ether.h +++ b/include/linux/if_ether.h @@ -30,7 +30,6 @@ static inline struct ethhdr *eth_hdr(const struct sk_buff *skb) int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr); -int mac_pton(const char *s, u8 *mac); extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len); #endif /* _LINUX_IF_ETHER_H */ diff --git a/include/linux/if_team.h b/include/linux/if_team.h index 4474557904f..16fae6436d0 100644 --- a/include/linux/if_team.h +++ b/include/linux/if_team.h @@ -249,12 +249,12 @@ team_get_first_port_txable_rcu(struct team *team, struct team_port *port) return port; cur = port; list_for_each_entry_continue_rcu(cur, &team->port_list, list) - if (team_port_txable(port)) + if (team_port_txable(cur)) return cur; list_for_each_entry_rcu(cur, &team->port_list, list) { if (cur == port) break; - if (team_port_txable(port)) + if (team_port_txable(cur)) return cur; } return NULL; diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 52bd03b3896..637fa71de0c 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -44,7 +44,7 @@ struct vlan_hdr { * struct vlan_ethhdr - vlan ethernet header (ethhdr + vlan_hdr) * @h_dest: destination ethernet address * @h_source: source ethernet address - * @h_vlan_proto: ethernet protocol (always 0x8100) + * @h_vlan_proto: ethernet protocol * @h_vlan_TCI: priority and VLAN ID * @h_vlan_encapsulated_proto: packet type ID or len */ diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h index 172c5b23cb8..72b26940730 100644 --- a/include/linux/iio/common/st_sensors.h +++ b/include/linux/iio/common/st_sensors.h @@ -24,14 +24,10 @@ #define ST_SENSORS_FULLSCALE_AVL_MAX 10 #define ST_SENSORS_NUMBER_ALL_CHANNELS 4 -#define ST_SENSORS_NUMBER_DATA_CHANNELS 3 #define ST_SENSORS_ENABLE_ALL_AXIS 0x07 -#define ST_SENSORS_BYTE_FOR_CHANNEL 2 #define ST_SENSORS_SCAN_X 0 #define ST_SENSORS_SCAN_Y 1 #define ST_SENSORS_SCAN_Z 2 -#define ST_SENSORS_DEFAULT_12_REALBITS 12 -#define ST_SENSORS_DEFAULT_16_REALBITS 16 #define ST_SENSORS_DEFAULT_POWER_ON_VALUE 0x01 #define ST_SENSORS_DEFAULT_POWER_OFF_VALUE 0x00 #define ST_SENSORS_DEFAULT_WAI_ADDRESS 0x0f @@ -42,20 +38,20 @@ #define ST_SENSORS_MAX_NAME 17 #define ST_SENSORS_MAX_4WAI 7 -#define ST_SENSORS_LSM_CHANNELS(device_type, index, mod, endian, bits, addr) \ +#define ST_SENSORS_LSM_CHANNELS(device_type, mask, index, mod, \ + ch2, s, endian, rbits, sbits, addr) \ { \ .type = device_type, \ - .modified = 1, \ - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ - BIT(IIO_CHAN_INFO_SCALE), \ + .modified = mod, \ + .info_mask_separate = mask, \ .scan_index = index, \ - .channel2 = mod, \ + .channel2 = ch2, \ .address = addr, \ .scan_type = { \ - .sign = 's', \ - .realbits = bits, \ - .shift = 16 - bits, \ - .storagebits = 16, \ + .sign = s, \ + .realbits = rbits, \ + .shift = sbits - rbits, \ + .storagebits = sbits, \ .endianness = endian, \ }, \ } @@ -204,6 +200,7 @@ struct st_sensors { * @multiread_bit: Use or not particular bit for [I2C/SPI] multiread. * @buffer_data: Data used by buffer part. * @odr: Output data rate of the sensor [Hz]. + * num_data_channels: Number of data channels used in buffer. * @get_irq_data_ready: Function to get the IRQ used for data ready signal. * @tf: Transfer function structure used by I/O operations. * @tb: Transfer buffers and mutex used by I/O operations. @@ -220,6 +217,7 @@ struct st_sensor_data { char *buffer_data; unsigned int odr; + unsigned int num_data_channels; unsigned int (*get_irq_data_ready) (struct iio_dev *indio_dev); diff --git a/include/linux/iio/frequency/adf4350.h b/include/linux/iio/frequency/adf4350.h index be91f344d5f..ffd8c8f9092 100644 --- a/include/linux/iio/frequency/adf4350.h +++ b/include/linux/iio/frequency/adf4350.h @@ -1,7 +1,7 @@ /* * ADF4350/ADF4351 SPI PLL driver * - * Copyright 2012 Analog Devices Inc. + * Copyright 2012-2013 Analog Devices Inc. * * Licensed under the GPL-2. */ @@ -41,7 +41,7 @@ #define ADF4350_REG2_RDIV2_EN (1 << 24) #define ADF4350_REG2_RMULT2_EN (1 << 25) #define ADF4350_REG2_MUXOUT(x) ((x) << 26) -#define ADF4350_REG2_NOISE_MODE(x) ((x) << 29) +#define ADF4350_REG2_NOISE_MODE(x) (((unsigned)(x)) << 29) #define ADF4350_MUXOUT_THREESTATE 0 #define ADF4350_MUXOUT_DVDD 1 #define ADF4350_MUXOUT_GND 2 diff --git a/include/linux/init.h b/include/linux/init.h index 861814710d5..e73f2b70852 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -93,13 +93,13 @@ #define __exit __section(.exit.text) __exitused __cold notrace -/* Used for HOTPLUG_CPU */ -#define __cpuinit __section(.cpuinit.text) __cold notrace -#define __cpuinitdata __section(.cpuinit.data) -#define __cpuinitconst __constsection(.cpuinit.rodata) -#define __cpuexit __section(.cpuexit.text) __exitused __cold notrace -#define __cpuexitdata __section(.cpuexit.data) -#define __cpuexitconst __constsection(.cpuexit.rodata) +/* temporary, until all users are removed */ +#define __cpuinit +#define __cpuinitdata +#define __cpuinitconst +#define __cpuexit +#define __cpuexitdata +#define __cpuexitconst /* Used for MEMORY_HOTPLUG */ #define __meminit __section(.meminit.text) __cold notrace @@ -118,9 +118,8 @@ #define __INITRODATA .section ".init.rodata","a",%progbits #define __FINITDATA .previous -#define __CPUINIT .section ".cpuinit.text", "ax" -#define __CPUINITDATA .section ".cpuinit.data", "aw" -#define __CPUINITRODATA .section ".cpuinit.rodata", "a" +/* temporary, until all users are removed */ +#define __CPUINIT #define __MEMINIT .section ".meminit.text", "ax" #define __MEMINITDATA .section ".meminit.data", "aw" diff --git a/include/linux/input/tps6507x-ts.h b/include/linux/input/tps6507x-ts.h index ab144031392..b433df801d9 100644 --- a/include/linux/input/tps6507x-ts.h +++ b/include/linux/input/tps6507x-ts.h @@ -14,7 +14,6 @@ /* Board specific touch screen initial values */ struct touchscreen_init_data { int poll_period; /* ms */ - int vref; /* non-zero to leave vref on */ __u16 min_pressure; /* min reading to be treated as a touch */ __u16 vendor; __u16 product; diff --git a/include/linux/ipmi-fru.h b/include/linux/ipmi-fru.h new file mode 100644 index 00000000000..4d3a76380e3 --- /dev/null +++ b/include/linux/ipmi-fru.h @@ -0,0 +1,135 @@ +/* + * Copyright (C) 2012 CERN (www.cern.ch) + * Author: Alessandro Rubini <rubini@gnudd.com> + * + * Released according to the GNU GPL, version 2 or any later version. + * + * This work is part of the White Rabbit project, a research effort led + * by CERN, the European Institute for Nuclear Research. + */ +#ifndef __LINUX_IPMI_FRU_H__ +#define __LINUX_IPMI_FRU_H__ +#ifdef __KERNEL__ +# include <linux/types.h> +# include <linux/string.h> +#else +# include <stdint.h> +# include <string.h> +#endif + +/* + * These structures match the unaligned crap we have in FRU1011.pdf + * (http://download.intel.com/design/servers/ipmi/FRU1011.pdf) + */ + +/* chapter 8, page 5 */ +struct fru_common_header { + uint8_t format; /* 0x01 */ + uint8_t internal_use_off; /* multiple of 8 bytes */ + uint8_t chassis_info_off; /* multiple of 8 bytes */ + uint8_t board_area_off; /* multiple of 8 bytes */ + uint8_t product_area_off; /* multiple of 8 bytes */ + uint8_t multirecord_off; /* multiple of 8 bytes */ + uint8_t pad; /* must be 0 */ + uint8_t checksum; /* sum modulo 256 must be 0 */ +}; + +/* chapter 9, page 5 -- internal_use: not used by us */ + +/* chapter 10, page 6 -- chassis info: not used by us */ + +/* chapter 13, page 9 -- used by board_info_area below */ +struct fru_type_length { + uint8_t type_length; + uint8_t data[0]; +}; + +/* chapter 11, page 7 */ +struct fru_board_info_area { + uint8_t format; /* 0x01 */ + uint8_t area_len; /* multiple of 8 bytes */ + uint8_t language; /* I hope it's 0 */ + uint8_t mfg_date[3]; /* LSB, minutes since 1996-01-01 */ + struct fru_type_length tl[0]; /* type-length stuff follows */ + + /* + * the TL there are in order: + * Board Manufacturer + * Board Product Name + * Board Serial Number + * Board Part Number + * FRU File ID (may be null) + * more manufacturer-specific stuff + * 0xc1 as a terminator + * 0x00 pad to a multiple of 8 bytes - 1 + * checksum (sum of all stuff module 256 must be zero) + */ +}; + +enum fru_type { + FRU_TYPE_BINARY = 0x00, + FRU_TYPE_BCDPLUS = 0x40, + FRU_TYPE_ASCII6 = 0x80, + FRU_TYPE_ASCII = 0xc0, /* not ascii: depends on language */ +}; + +/* + * some helpers + */ +static inline struct fru_board_info_area *fru_get_board_area( + const struct fru_common_header *header) +{ + /* we know for sure that the header is 8 bytes in size */ + return (struct fru_board_info_area *)(header + header->board_area_off); +} + +static inline int fru_type(struct fru_type_length *tl) +{ + return tl->type_length & 0xc0; +} + +static inline int fru_length(struct fru_type_length *tl) +{ + return (tl->type_length & 0x3f) + 1; /* len of whole record */ +} + +/* assume ascii-latin1 encoding */ +static inline int fru_strlen(struct fru_type_length *tl) +{ + return fru_length(tl) - 1; +} + +static inline char *fru_strcpy(char *dest, struct fru_type_length *tl) +{ + int len = fru_strlen(tl); + memcpy(dest, tl->data, len); + dest[len] = '\0'; + return dest; +} + +static inline struct fru_type_length *fru_next_tl(struct fru_type_length *tl) +{ + return tl + fru_length(tl); +} + +static inline int fru_is_eof(struct fru_type_length *tl) +{ + return tl->type_length == 0xc1; +} + +/* + * External functions defined in fru-parse.c. + */ +extern int fru_header_cksum_ok(struct fru_common_header *header); +extern int fru_bia_cksum_ok(struct fru_board_info_area *bia); + +/* All these 4 return allocated strings by calling fru_alloc() */ +extern char *fru_get_board_manufacturer(struct fru_common_header *header); +extern char *fru_get_product_name(struct fru_common_header *header); +extern char *fru_get_serial_number(struct fru_common_header *header); +extern char *fru_get_part_number(struct fru_common_header *header); + +/* This must be defined by the caller of the above functions */ +extern void *fru_alloc(size_t size); + +#endif /* __LINUX_IMPI_FRU_H__ */ diff --git a/include/linux/irq.h b/include/linux/irq.h index bc4e0661195..f04d3ba335c 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -119,6 +119,7 @@ struct irq_domain; /** * struct irq_data - per irq and irq chip data passed down to chip functions + * @mask: precomputed bitmask for accessing the chip registers * @irq: interrupt number * @hwirq: hardware interrupt number, local to the interrupt domain * @node: node index useful for balancing @@ -138,6 +139,7 @@ struct irq_domain; * irq_data. */ struct irq_data { + u32 mask; unsigned int irq; unsigned long hwirq; unsigned int node; @@ -294,6 +296,7 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d) * @irq_suspend: function called from core code on suspend once per chip * @irq_resume: function called from core code on resume once per chip * @irq_pm_shutdown: function called from core code on shutdown once per chip + * @irq_calc_mask: Optional function to set irq_data.mask for special cases * @irq_print_chip: optional to print special chip info in show_interrupts * @flags: chip specific flags */ @@ -325,6 +328,8 @@ struct irq_chip { void (*irq_resume)(struct irq_data *data); void (*irq_pm_shutdown)(struct irq_data *data); + void (*irq_calc_mask)(struct irq_data *data); + void (*irq_print_chip)(struct irq_data *data, struct seq_file *p); unsigned long flags; @@ -579,6 +584,12 @@ static inline struct msi_desc *irq_data_get_msi(struct irq_data *d) return d->msi_desc; } +static inline u32 irq_get_trigger_type(unsigned int irq) +{ + struct irq_data *d = irq_get_irq_data(irq); + return d ? irqd_get_trigger_type(d) : 0; +} + int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, struct module *owner); @@ -644,6 +655,8 @@ struct irq_chip_regs { * @regs: Register offsets for this chip * @handler: Flow handler associated with this chip * @type: Chip can handle these flow types + * @mask_cache_priv: Cached mask register private to the chip type + * @mask_cache: Pointer to cached mask register * * A irq_generic_chip can have several instances of irq_chip_type when * it requires different functions and register offsets for different @@ -654,6 +667,8 @@ struct irq_chip_type { struct irq_chip_regs regs; irq_flow_handler_t handler; u32 type; + u32 mask_cache_priv; + u32 *mask_cache; }; /** @@ -662,13 +677,16 @@ struct irq_chip_type { * @reg_base: Register base address (virtual) * @irq_base: Interrupt base nr for this chip * @irq_cnt: Number of interrupts handled by this chip - * @mask_cache: Cached mask register + * @mask_cache: Cached mask register shared between all chip types * @type_cache: Cached type register * @polarity_cache: Cached polarity register * @wake_enabled: Interrupt can wakeup from suspend * @wake_active: Interrupt is marked as an wakeup from suspend source * @num_ct: Number of available irq_chip_type instances (usually 1) * @private: Private data for non generic chip callbacks + * @installed: bitfield to denote installed interrupts + * @unused: bitfield to denote unused interrupts + * @domain: irq domain pointer * @list: List head for keeping track of instances * @chip_types: Array of interrupt irq_chip_types * @@ -690,6 +708,9 @@ struct irq_chip_generic { u32 wake_active; unsigned int num_ct; void *private; + unsigned long installed; + unsigned long unused; + struct irq_domain *domain; struct list_head list; struct irq_chip_type chip_types[0]; }; @@ -700,10 +721,32 @@ struct irq_chip_generic { * @IRQ_GC_INIT_NESTED_LOCK: Set the lock class of the irqs to nested for * irq chips which need to call irq_set_wake() on * the parent irq. Usually GPIO implementations + * @IRQ_GC_MASK_CACHE_PER_TYPE: Mask cache is chip type private + * @IRQ_GC_NO_MASK: Do not calculate irq_data->mask */ enum irq_gc_flags { IRQ_GC_INIT_MASK_CACHE = 1 << 0, IRQ_GC_INIT_NESTED_LOCK = 1 << 1, + IRQ_GC_MASK_CACHE_PER_TYPE = 1 << 2, + IRQ_GC_NO_MASK = 1 << 3, +}; + +/* + * struct irq_domain_chip_generic - Generic irq chip data structure for irq domains + * @irqs_per_chip: Number of interrupts per chip + * @num_chips: Number of chips + * @irq_flags_to_set: IRQ* flags to set on irq setup + * @irq_flags_to_clear: IRQ* flags to clear on irq setup + * @gc_flags: Generic chip specific setup flags + * @gc: Array of pointers to generic interrupt chips + */ +struct irq_domain_chip_generic { + unsigned int irqs_per_chip; + unsigned int num_chips; + unsigned int irq_flags_to_clear; + unsigned int irq_flags_to_set; + enum irq_gc_flags gc_flags; + struct irq_chip_generic *gc[0]; }; /* Generic chip callback functions */ @@ -729,6 +772,14 @@ int irq_setup_alt_chip(struct irq_data *d, unsigned int type); void irq_remove_generic_chip(struct irq_chip_generic *gc, u32 msk, unsigned int clr, unsigned int set); +struct irq_chip_generic *irq_get_domain_generic_chip(struct irq_domain *d, unsigned int hw_irq); +int irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip, + int num_ct, const char *name, + irq_flow_handler_t handler, + unsigned int clr, unsigned int set, + enum irq_gc_flags flags); + + static inline struct irq_chip_type *irq_data_get_chip_type(struct irq_data *d) { return container_of(d->chip, struct irq_chip_type, chip); diff --git a/include/linux/irqchip.h b/include/linux/irqchip.h index e0006f1d35a..14d79131f53 100644 --- a/include/linux/irqchip.h +++ b/include/linux/irqchip.h @@ -11,6 +11,10 @@ #ifndef _LINUX_IRQCHIP_H #define _LINUX_IRQCHIP_H +#ifdef CONFIG_IRQCHIP void irqchip_init(void); +#else +static inline void irqchip_init(void) {} +#endif #endif diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 0d5b17bf5e5..c983ed18c33 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -66,52 +66,55 @@ struct irq_domain_ops { unsigned long *out_hwirq, unsigned int *out_type); }; +extern struct irq_domain_ops irq_generic_chip_ops; + +struct irq_domain_chip_generic; + /** * struct irq_domain - Hardware interrupt number translation object * @link: Element in global irq_domain list. - * @revmap_type: Method used for reverse mapping hwirq numbers to linux irq. This - * will be one of the IRQ_DOMAIN_MAP_* values. - * @revmap_data: Revmap method specific data. + * @name: Name of interrupt domain * @ops: pointer to irq_domain methods * @host_data: private data pointer for use by owner. Not touched by irq_domain * core code. - * @irq_base: Start of irq_desc range assigned to the irq_domain. The creator - * of the irq_domain is responsible for allocating the array of - * irq_desc structures. - * @nr_irq: Number of irqs managed by the irq domain - * @hwirq_base: Starting number for hwirqs managed by the irq domain - * @of_node: (optional) Pointer to device tree nodes associated with the - * irq_domain. Used when decoding device tree interrupt specifiers. + * + * Optional elements + * @of_node: Pointer to device tree nodes associated with the irq_domain. Used + * when decoding device tree interrupt specifiers. + * @gc: Pointer to a list of generic chips. There is a helper function for + * setting up one or more generic chips for interrupt controllers + * drivers using the generic chip library which uses this pointer. + * + * Revmap data, used internally by irq_domain + * @revmap_direct_max_irq: The largest hwirq that can be set for controllers that + * support direct mapping + * @revmap_size: Size of the linear map table @linear_revmap[] + * @revmap_tree: Radix map tree for hwirqs that don't fit in the linear map + * @linear_revmap: Linear table of hwirq->virq reverse mappings */ struct irq_domain { struct list_head link; - - /* type of reverse mapping_technique */ - unsigned int revmap_type; - union { - struct { - unsigned int size; - unsigned int first_irq; - irq_hw_number_t first_hwirq; - } legacy; - struct { - unsigned int size; - unsigned int *revmap; - } linear; - struct { - unsigned int max_irq; - } nomap; - struct radix_tree_root tree; - } revmap_data; + const char *name; const struct irq_domain_ops *ops; void *host_data; - irq_hw_number_t inval_irq; - /* Optional device node pointer */ + /* Optional data */ struct device_node *of_node; + struct irq_domain_chip_generic *gc; + + /* reverse map data. The linear map gets appended to the irq_domain */ + irq_hw_number_t hwirq_max; + unsigned int revmap_direct_max_irq; + unsigned int revmap_size; + struct radix_tree_root revmap_tree; + unsigned int linear_revmap[]; }; #ifdef CONFIG_IRQ_DOMAIN +struct irq_domain *__irq_domain_add(struct device_node *of_node, int size, + irq_hw_number_t hwirq_max, int direct_max, + const struct irq_domain_ops *ops, + void *host_data); struct irq_domain *irq_domain_add_simple(struct device_node *of_node, unsigned int size, unsigned int first_irq, @@ -123,21 +126,30 @@ struct irq_domain *irq_domain_add_legacy(struct device_node *of_node, irq_hw_number_t first_hwirq, const struct irq_domain_ops *ops, void *host_data); -struct irq_domain *irq_domain_add_linear(struct device_node *of_node, +extern struct irq_domain *irq_find_host(struct device_node *node); +extern void irq_set_default_host(struct irq_domain *host); + +/** + * irq_domain_add_linear() - Allocate and register a linear revmap irq_domain. + * @of_node: pointer to interrupt controller's device tree node. + * @size: Number of interrupts in the domain. + * @ops: map/unmap domain callbacks + * @host_data: Controller private data pointer + */ +static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_node, unsigned int size, const struct irq_domain_ops *ops, - void *host_data); -struct irq_domain *irq_domain_add_nomap(struct device_node *of_node, + void *host_data) +{ + return __irq_domain_add(of_node, size, size, 0, ops, host_data); +} +static inline struct irq_domain *irq_domain_add_nomap(struct device_node *of_node, unsigned int max_irq, const struct irq_domain_ops *ops, - void *host_data); -struct irq_domain *irq_domain_add_tree(struct device_node *of_node, - const struct irq_domain_ops *ops, - void *host_data); - -extern struct irq_domain *irq_find_host(struct device_node *node); -extern void irq_set_default_host(struct irq_domain *host); - + void *host_data) +{ + return __irq_domain_add(of_node, 0, max_irq, max_irq, ops, host_data); +} static inline struct irq_domain *irq_domain_add_legacy_isa( struct device_node *of_node, const struct irq_domain_ops *ops, @@ -146,21 +158,40 @@ static inline struct irq_domain *irq_domain_add_legacy_isa( return irq_domain_add_legacy(of_node, NUM_ISA_INTERRUPTS, 0, 0, ops, host_data); } +static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node, + const struct irq_domain_ops *ops, + void *host_data) +{ + return __irq_domain_add(of_node, 0, ~0, 0, ops, host_data); +} extern void irq_domain_remove(struct irq_domain *host); -extern int irq_domain_associate_many(struct irq_domain *domain, - unsigned int irq_base, - irq_hw_number_t hwirq_base, int count); -static inline int irq_domain_associate(struct irq_domain *domain, unsigned int irq, - irq_hw_number_t hwirq) -{ - return irq_domain_associate_many(domain, irq, hwirq, 1); -} +extern int irq_domain_associate(struct irq_domain *domain, unsigned int irq, + irq_hw_number_t hwirq); +extern void irq_domain_associate_many(struct irq_domain *domain, + unsigned int irq_base, + irq_hw_number_t hwirq_base, int count); extern unsigned int irq_create_mapping(struct irq_domain *host, irq_hw_number_t hwirq); extern void irq_dispose_mapping(unsigned int virq); + +/** + * irq_linear_revmap() - Find a linux irq from a hw irq number. + * @domain: domain owning this hardware interrupt + * @hwirq: hardware irq number in that domain space + * + * This is a fast path alternative to irq_find_mapping() that can be + * called directly by irq controller code to save a handful of + * instructions. It is always safe to call, but won't find irqs mapped + * using the radix tree. + */ +static inline unsigned int irq_linear_revmap(struct irq_domain *domain, + irq_hw_number_t hwirq) +{ + return hwirq < domain->revmap_size ? domain->linear_revmap[hwirq] : 0; +} extern unsigned int irq_find_mapping(struct irq_domain *host, irq_hw_number_t hwirq); extern unsigned int irq_create_direct_mapping(struct irq_domain *host); @@ -174,9 +205,6 @@ static inline int irq_create_identity_mapping(struct irq_domain *host, return irq_create_strict_mappings(host, hwirq, hwirq, 1); } -extern unsigned int irq_linear_revmap(struct irq_domain *host, - irq_hw_number_t hwirq); - extern const struct irq_domain_ops irq_domain_simple_ops; /* stock xlate functions */ @@ -190,14 +218,6 @@ int irq_domain_xlate_onetwocell(struct irq_domain *d, struct device_node *ctrlr, const u32 *intspec, unsigned int intsize, irq_hw_number_t *out_hwirq, unsigned int *out_type); -#if defined(CONFIG_OF_IRQ) -extern void irq_domain_generate_simple(const struct of_device_id *match, - u64 phys_base, unsigned int irq_start); -#else /* CONFIG_OF_IRQ */ -static inline void irq_domain_generate_simple(const struct of_device_id *match, - u64 phys_base, unsigned int irq_start) { } -#endif /* !CONFIG_OF_IRQ */ - #else /* CONFIG_IRQ_DOMAIN */ static inline void irq_dispose_mapping(unsigned int virq) { } #endif /* !CONFIG_IRQ_DOMAIN */ diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 7e0b622503c..8685d1be12c 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -27,7 +27,6 @@ #include <linux/buffer_head.h> #include <linux/journal-head.h> #include <linux/stddef.h> -#include <linux/bit_spinlock.h> #include <linux/mutex.h> #include <linux/timer.h> #include <linux/lockdep.h> @@ -244,6 +243,31 @@ typedef struct journal_superblock_s #include <linux/fs.h> #include <linux/sched.h> + +enum jbd_state_bits { + BH_JBD /* Has an attached ext3 journal_head */ + = BH_PrivateStart, + BH_JWrite, /* Being written to log (@@@ DEBUGGING) */ + BH_Freed, /* Has been freed (truncated) */ + BH_Revoked, /* Has been revoked from the log */ + BH_RevokeValid, /* Revoked flag is valid */ + BH_JBDDirty, /* Is dirty but journaled */ + BH_State, /* Pins most journal_head state */ + BH_JournalHead, /* Pins bh->b_private and jh->b_bh */ + BH_Unshadow, /* Dummy bit, for BJ_Shadow wakeup filtering */ + BH_JBDPrivateStart, /* First bit available for private use by FS */ +}; + +BUFFER_FNS(JBD, jbd) +BUFFER_FNS(JWrite, jwrite) +BUFFER_FNS(JBDDirty, jbddirty) +TAS_BUFFER_FNS(JBDDirty, jbddirty) +BUFFER_FNS(Revoked, revoked) +TAS_BUFFER_FNS(Revoked, revoked) +BUFFER_FNS(RevokeValid, revokevalid) +TAS_BUFFER_FNS(RevokeValid, revokevalid) +BUFFER_FNS(Freed, freed) + #include <linux/jbd_common.h> #define J_ASSERT(assert) BUG_ON(!(assert)) @@ -840,7 +864,7 @@ extern void journal_release_buffer (handle_t *, struct buffer_head *); extern int journal_forget (handle_t *, struct buffer_head *); extern void journal_sync_buffer (struct buffer_head *); extern void journal_invalidatepage(journal_t *, - struct page *, unsigned long); + struct page *, unsigned int, unsigned int); extern int journal_try_to_free_buffers(journal_t *, struct page *, gfp_t); extern int journal_stop(handle_t *); extern int journal_flush (journal_t *); diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 6e051f472ed..d5b50a19463 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -26,7 +26,6 @@ #include <linux/buffer_head.h> #include <linux/journal-head.h> #include <linux/stddef.h> -#include <linux/bit_spinlock.h> #include <linux/mutex.h> #include <linux/timer.h> #include <linux/slab.h> @@ -57,17 +56,13 @@ */ #define JBD2_EXPENSIVE_CHECKING extern ushort jbd2_journal_enable_debug; +void __jbd2_debug(int level, const char *file, const char *func, + unsigned int line, const char *fmt, ...); -#define jbd_debug(n, f, a...) \ - do { \ - if ((n) <= jbd2_journal_enable_debug) { \ - printk (KERN_DEBUG "(%s, %d): %s: ", \ - __FILE__, __LINE__, __func__); \ - printk (f, ## a); \ - } \ - } while (0) +#define jbd_debug(n, fmt, a...) \ + __jbd2_debug((n), __FILE__, __func__, __LINE__, (fmt), ##a) #else -#define jbd_debug(f, a...) /**/ +#define jbd_debug(n, fmt, a...) /**/ #endif extern void *jbd2_alloc(size_t size, gfp_t flags); @@ -302,6 +297,34 @@ typedef struct journal_superblock_s #include <linux/fs.h> #include <linux/sched.h> + +enum jbd_state_bits { + BH_JBD /* Has an attached ext3 journal_head */ + = BH_PrivateStart, + BH_JWrite, /* Being written to log (@@@ DEBUGGING) */ + BH_Freed, /* Has been freed (truncated) */ + BH_Revoked, /* Has been revoked from the log */ + BH_RevokeValid, /* Revoked flag is valid */ + BH_JBDDirty, /* Is dirty but journaled */ + BH_State, /* Pins most journal_head state */ + BH_JournalHead, /* Pins bh->b_private and jh->b_bh */ + BH_Shadow, /* IO on shadow buffer is running */ + BH_Verified, /* Metadata block has been verified ok */ + BH_JBDPrivateStart, /* First bit available for private use by FS */ +}; + +BUFFER_FNS(JBD, jbd) +BUFFER_FNS(JWrite, jwrite) +BUFFER_FNS(JBDDirty, jbddirty) +TAS_BUFFER_FNS(JBDDirty, jbddirty) +BUFFER_FNS(Revoked, revoked) +TAS_BUFFER_FNS(Revoked, revoked) +BUFFER_FNS(RevokeValid, revokevalid) +TAS_BUFFER_FNS(RevokeValid, revokevalid) +BUFFER_FNS(Freed, freed) +BUFFER_FNS(Shadow, shadow) +BUFFER_FNS(Verified, verified) + #include <linux/jbd_common.h> #define J_ASSERT(assert) BUG_ON(!(assert)) @@ -382,8 +405,15 @@ struct jbd2_revoke_table_s; struct jbd2_journal_handle { - /* Which compound transaction is this update a part of? */ - transaction_t *h_transaction; + union { + /* Which compound transaction is this update a part of? */ + transaction_t *h_transaction; + /* Which journal handle belongs to - used iff h_reserved set */ + journal_t *h_journal; + }; + + /* Handle reserved for finishing the logical operation */ + handle_t *h_rsv_handle; /* Number of remaining buffers we are allowed to dirty: */ int h_buffer_credits; @@ -398,6 +428,7 @@ struct jbd2_journal_handle /* Flags [no locking] */ unsigned int h_sync: 1; /* sync-on-close */ unsigned int h_jdata: 1; /* force data journaling */ + unsigned int h_reserved: 1; /* handle with reserved credits */ unsigned int h_aborted: 1; /* fatal error on handle */ unsigned int h_type: 8; /* for handle statistics */ unsigned int h_line_no: 16; /* for handle statistics */ @@ -524,12 +555,6 @@ struct transaction_s struct journal_head *t_checkpoint_io_list; /* - * Doubly-linked circular list of temporary buffers currently undergoing - * IO in the log [j_list_lock] - */ - struct journal_head *t_iobuf_list; - - /* * Doubly-linked circular list of metadata buffers being shadowed by log * IO. The IO buffers on the iobuf list and the shadow buffers on this * list match each other one for one at all times. [j_list_lock] @@ -537,12 +562,6 @@ struct transaction_s struct journal_head *t_shadow_list; /* - * Doubly-linked circular list of control buffers being written to the - * log. [j_list_lock] - */ - struct journal_head *t_log_list; - - /* * List of inodes whose data we've modified in data=ordered mode. * [j_list_lock] */ @@ -671,11 +690,10 @@ jbd2_time_diff(unsigned long start, unsigned long end) * waiting for checkpointing * @j_wait_transaction_locked: Wait queue for waiting for a locked transaction * to start committing, or for a barrier lock to be released - * @j_wait_logspace: Wait queue for waiting for checkpointing to complete * @j_wait_done_commit: Wait queue for waiting for commit to complete - * @j_wait_checkpoint: Wait queue to trigger checkpointing * @j_wait_commit: Wait queue to trigger commit * @j_wait_updates: Wait queue to wait for updates to complete + * @j_wait_reserved: Wait queue to wait for reserved buffer credits to drop * @j_checkpoint_mutex: Mutex for locking against concurrent checkpoints * @j_head: Journal head - identifies the first unused block in the journal * @j_tail: Journal tail - identifies the oldest still-used block in the @@ -689,6 +707,7 @@ jbd2_time_diff(unsigned long start, unsigned long end) * journal * @j_fs_dev: Device which holds the client fs. For internal journal this will * be equal to j_dev + * @j_reserved_credits: Number of buffers reserved from the running transaction * @j_maxlen: Total maximum capacity of the journal region on disk. * @j_list_lock: Protects the buffer lists and internal buffer state. * @j_inode: Optional inode where we store the journal. If present, all journal @@ -778,21 +797,18 @@ struct journal_s */ wait_queue_head_t j_wait_transaction_locked; - /* Wait queue for waiting for checkpointing to complete */ - wait_queue_head_t j_wait_logspace; - /* Wait queue for waiting for commit to complete */ wait_queue_head_t j_wait_done_commit; - /* Wait queue to trigger checkpointing */ - wait_queue_head_t j_wait_checkpoint; - /* Wait queue to trigger commit */ wait_queue_head_t j_wait_commit; /* Wait queue to wait for updates to complete */ wait_queue_head_t j_wait_updates; + /* Wait queue to wait for reserved buffer credits to drop */ + wait_queue_head_t j_wait_reserved; + /* Semaphore for locking against concurrent checkpoints */ struct mutex j_checkpoint_mutex; @@ -847,6 +863,9 @@ struct journal_s /* Total maximum capacity of the journal region on disk. */ unsigned int j_maxlen; + /* Number of buffers reserved from the running transaction */ + atomic_t j_reserved_credits; + /* * Protects the buffer lists and internal buffer state. */ @@ -991,9 +1010,17 @@ extern void __jbd2_journal_file_buffer(struct journal_head *, transaction_t *, i extern void __journal_free_buffer(struct journal_head *bh); extern void jbd2_journal_file_buffer(struct journal_head *, transaction_t *, int); extern void __journal_clean_data_list(transaction_t *transaction); +static inline void jbd2_file_log_bh(struct list_head *head, struct buffer_head *bh) +{ + list_add_tail(&bh->b_assoc_buffers, head); +} +static inline void jbd2_unfile_log_bh(struct buffer_head *bh) +{ + list_del_init(&bh->b_assoc_buffers); +} /* Log buffer allocation */ -extern struct journal_head * jbd2_journal_get_descriptor_buffer(journal_t *); +struct buffer_head *jbd2_journal_get_descriptor_buffer(journal_t *journal); int jbd2_journal_next_log_block(journal_t *, unsigned long long *); int jbd2_journal_get_log_tail(journal_t *journal, tid_t *tid, unsigned long *block); @@ -1039,11 +1066,10 @@ extern void jbd2_buffer_abort_trigger(struct journal_head *jh, struct jbd2_buffer_trigger_type *triggers); /* Buffer IO */ -extern int -jbd2_journal_write_metadata_buffer(transaction_t *transaction, - struct journal_head *jh_in, - struct journal_head **jh_out, - unsigned long long blocknr); +extern int jbd2_journal_write_metadata_buffer(transaction_t *transaction, + struct journal_head *jh_in, + struct buffer_head **bh_out, + sector_t blocknr); /* Transaction locking */ extern void __wait_on_journal (journal_t *); @@ -1076,10 +1102,14 @@ static inline handle_t *journal_current_handle(void) */ extern handle_t *jbd2_journal_start(journal_t *, int nblocks); -extern handle_t *jbd2__journal_start(journal_t *, int nblocks, gfp_t gfp_mask, - unsigned int type, unsigned int line_no); +extern handle_t *jbd2__journal_start(journal_t *, int blocks, int rsv_blocks, + gfp_t gfp_mask, unsigned int type, + unsigned int line_no); extern int jbd2_journal_restart(handle_t *, int nblocks); extern int jbd2__journal_restart(handle_t *, int nblocks, gfp_t gfp_mask); +extern int jbd2_journal_start_reserved(handle_t *handle, + unsigned int type, unsigned int line_no); +extern void jbd2_journal_free_reserved(handle_t *handle); extern int jbd2_journal_extend (handle_t *, int nblocks); extern int jbd2_journal_get_write_access(handle_t *, struct buffer_head *); extern int jbd2_journal_get_create_access (handle_t *, struct buffer_head *); @@ -1090,7 +1120,7 @@ extern int jbd2_journal_dirty_metadata (handle_t *, struct buffer_head *); extern int jbd2_journal_forget (handle_t *, struct buffer_head *); extern void journal_sync_buffer (struct buffer_head *); extern int jbd2_journal_invalidatepage(journal_t *, - struct page *, unsigned long); + struct page *, unsigned int, unsigned int); extern int jbd2_journal_try_to_free_buffers(journal_t *, struct page *, gfp_t); extern int jbd2_journal_stop(handle_t *); extern int jbd2_journal_flush (journal_t *); @@ -1125,6 +1155,7 @@ extern void jbd2_journal_ack_err (journal_t *); extern int jbd2_journal_clear_err (journal_t *); extern int jbd2_journal_bmap(journal_t *, unsigned long, unsigned long long *); extern int jbd2_journal_force_commit(journal_t *); +extern int jbd2_journal_force_commit_nested(journal_t *); extern int jbd2_journal_file_inode(handle_t *handle, struct jbd2_inode *inode); extern int jbd2_journal_begin_ordered_truncate(journal_t *journal, struct jbd2_inode *inode, loff_t new_size); @@ -1178,8 +1209,10 @@ extern int jbd2_journal_init_revoke_caches(void); extern void jbd2_journal_destroy_revoke(journal_t *); extern int jbd2_journal_revoke (handle_t *, unsigned long long, struct buffer_head *); extern int jbd2_journal_cancel_revoke(handle_t *, struct journal_head *); -extern void jbd2_journal_write_revoke_records(journal_t *, - transaction_t *, int); +extern void jbd2_journal_write_revoke_records(journal_t *journal, + transaction_t *transaction, + struct list_head *log_bufs, + int write_op); /* Recovery revoke support */ extern int jbd2_journal_set_revoke(journal_t *, unsigned long long, tid_t); @@ -1195,11 +1228,9 @@ extern void jbd2_clear_buffer_revoked_flags(journal_t *journal); * transitions on demand. */ -int __jbd2_log_space_left(journal_t *); /* Called with journal locked */ int jbd2_log_start_commit(journal_t *journal, tid_t tid); int __jbd2_log_start_commit(journal_t *journal, tid_t tid); int jbd2_journal_start_commit(journal_t *journal, tid_t *tid); -int jbd2_journal_force_commit_nested(journal_t *journal); int jbd2_log_wait_commit(journal_t *journal, tid_t tid); int jbd2_complete_transaction(journal_t *journal, tid_t tid); int jbd2_log_do_checkpoint(journal_t *journal); @@ -1235,7 +1266,7 @@ static inline int is_journal_aborted(journal_t *journal) static inline int is_handle_aborted(handle_t *handle) { - if (handle->h_aborted) + if (handle->h_aborted || !handle->h_transaction) return 1; return is_journal_aborted(handle->h_transaction->t_journal); } @@ -1266,16 +1297,37 @@ extern int jbd2_journal_blocks_per_page(struct inode *inode); extern size_t journal_tag_bytes(journal_t *journal); /* + * We reserve t_outstanding_credits >> JBD2_CONTROL_BLOCKS_SHIFT for + * transaction control blocks. + */ +#define JBD2_CONTROL_BLOCKS_SHIFT 5 + +/* * Return the minimum number of blocks which must be free in the journal * before a new transaction may be started. Must be called under j_state_lock. */ -static inline int jbd_space_needed(journal_t *journal) +static inline int jbd2_space_needed(journal_t *journal) { int nblocks = journal->j_max_transaction_buffers; - if (journal->j_committing_transaction) - nblocks += atomic_read(&journal->j_committing_transaction-> - t_outstanding_credits); - return nblocks; + return nblocks + (nblocks >> JBD2_CONTROL_BLOCKS_SHIFT); +} + +/* + * Return number of free blocks in the log. Must be called under j_state_lock. + */ +static inline unsigned long jbd2_log_space_left(journal_t *journal) +{ + /* Allow for rounding errors */ + unsigned long free = journal->j_free - 32; + + if (journal->j_committing_transaction) { + unsigned long committing = atomic_read(&journal-> + j_committing_transaction->t_outstanding_credits); + + /* Transaction + control blocks */ + free -= committing + (committing >> JBD2_CONTROL_BLOCKS_SHIFT); + } + return free; } /* @@ -1286,11 +1338,9 @@ static inline int jbd_space_needed(journal_t *journal) #define BJ_None 0 /* Not journaled */ #define BJ_Metadata 1 /* Normal journaled metadata */ #define BJ_Forget 2 /* Buffer superseded by this transaction */ -#define BJ_IO 3 /* Buffer is for temporary IO use */ -#define BJ_Shadow 4 /* Buffer contents being shadowed to the log */ -#define BJ_LogCtl 5 /* Buffer contains log descriptors */ -#define BJ_Reserved 6 /* Buffer is reserved for access by journal */ -#define BJ_Types 7 +#define BJ_Shadow 3 /* Buffer contents being shadowed to the log */ +#define BJ_Reserved 4 /* Buffer is reserved for access by journal */ +#define BJ_Types 5 extern int jbd_blocks_per_page(struct inode *inode); @@ -1319,6 +1369,19 @@ static inline u32 jbd2_chksum(journal_t *journal, u32 crc, return *(u32 *)desc.ctx; } +/* Return most recent uncommitted transaction */ +static inline tid_t jbd2_get_latest_transaction(journal_t *journal) +{ + tid_t tid; + + read_lock(&journal->j_state_lock); + tid = journal->j_commit_request; + if (journal->j_running_transaction) + tid = journal->j_running_transaction->t_tid; + read_unlock(&journal->j_state_lock); + return tid; +} + #ifdef __KERNEL__ #define buffer_trace_init(bh) do {} while (0) diff --git a/include/linux/jbd_common.h b/include/linux/jbd_common.h index 6133679bc4c..3dc53432355 100644 --- a/include/linux/jbd_common.h +++ b/include/linux/jbd_common.h @@ -1,31 +1,7 @@ #ifndef _LINUX_JBD_STATE_H #define _LINUX_JBD_STATE_H -enum jbd_state_bits { - BH_JBD /* Has an attached ext3 journal_head */ - = BH_PrivateStart, - BH_JWrite, /* Being written to log (@@@ DEBUGGING) */ - BH_Freed, /* Has been freed (truncated) */ - BH_Revoked, /* Has been revoked from the log */ - BH_RevokeValid, /* Revoked flag is valid */ - BH_JBDDirty, /* Is dirty but journaled */ - BH_State, /* Pins most journal_head state */ - BH_JournalHead, /* Pins bh->b_private and jh->b_bh */ - BH_Unshadow, /* Dummy bit, for BJ_Shadow wakeup filtering */ - BH_Verified, /* Metadata block has been verified ok */ - BH_JBDPrivateStart, /* First bit available for private use by FS */ -}; - -BUFFER_FNS(JBD, jbd) -BUFFER_FNS(JWrite, jwrite) -BUFFER_FNS(JBDDirty, jbddirty) -TAS_BUFFER_FNS(JBDDirty, jbddirty) -BUFFER_FNS(Revoked, revoked) -TAS_BUFFER_FNS(Revoked, revoked) -BUFFER_FNS(RevokeValid, revokevalid) -TAS_BUFFER_FNS(RevokeValid, revokevalid) -BUFFER_FNS(Freed, freed) -BUFFER_FNS(Verified, verified) +#include <linux/bit_spinlock.h> static inline struct buffer_head *jh2bh(struct journal_head *jh) { diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h index 13a3da25ff0..98cd41bb39c 100644 --- a/include/linux/journal-head.h +++ b/include/linux/journal-head.h @@ -30,15 +30,19 @@ struct journal_head { /* * Journalling list for this buffer [jbd_lock_bh_state()] + * NOTE: We *cannot* combine this with b_modified into a bitfield + * as gcc would then (which the C standard allows but which is + * very unuseful) make 64-bit accesses to the bitfield and clobber + * b_jcount if its update races with bitfield modification. */ - unsigned b_jlist:4; + unsigned b_jlist; /* * This flag signals the buffer has been modified by * the currently running transaction * [jbd_lock_bh_state()] */ - unsigned b_modified:1; + unsigned b_modified; /* * Copy of the buffer data frozen for writing to the log. diff --git a/include/linux/kernel.h b/include/linux/kernel.h index e96329ceb28..3bef14c6586 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -193,13 +193,10 @@ extern int _cond_resched(void); (__x < 0) ? -__x : __x; \ }) -#ifdef CONFIG_PROVE_LOCKING +#if defined(CONFIG_PROVE_LOCKING) || defined(CONFIG_DEBUG_ATOMIC_SLEEP) void might_fault(void); #else -static inline void might_fault(void) -{ - might_sleep(); -} +static inline void might_fault(void) { } #endif extern struct atomic_notifier_head panic_notifier_list; @@ -450,6 +447,8 @@ static inline char * __deprecated pack_hex_byte(char *buf, u8 byte) extern int hex_to_bin(char ch); extern int __must_check hex2bin(u8 *dst, const char *src, size_t count); +int mac_pton(const char *s, u8 *mac); + /* * General tracing related utility functions - trace_printk(), * tracing_on/tracing_off and tracing_start()/tracing_stop @@ -587,8 +586,6 @@ int __trace_printk(unsigned long ip, const char *fmt, ...); * (1 when __trace_bputs is used, strlen(str) when __trace_puts is used) */ -extern int __trace_bputs(unsigned long ip, const char *str); -extern int __trace_puts(unsigned long ip, const char *str, int size); #define trace_puts(str) ({ \ static const char *trace_printk_fmt \ __attribute__((section("__trace_printk_fmt"))) = \ @@ -599,6 +596,8 @@ extern int __trace_puts(unsigned long ip, const char *str, int size); else \ __trace_puts(_THIS_IP_, str, strlen(str)); \ }) +extern int __trace_bputs(unsigned long ip, const char *str); +extern int __trace_puts(unsigned long ip, const char *str, int size); extern void trace_dump_stack(int skip); diff --git a/include/linux/kref.h b/include/linux/kref.h index e15828fd71f..484604d184b 100644 --- a/include/linux/kref.h +++ b/include/linux/kref.h @@ -19,6 +19,7 @@ #include <linux/atomic.h> #include <linux/kernel.h> #include <linux/mutex.h> +#include <linux/spinlock.h> struct kref { atomic_t refcount; @@ -98,6 +99,38 @@ static inline int kref_put(struct kref *kref, void (*release)(struct kref *kref) return kref_sub(kref, 1, release); } +/** + * kref_put_spinlock_irqsave - decrement refcount for object. + * @kref: object. + * @release: pointer to the function that will clean up the object when the + * last reference to the object is released. + * This pointer is required, and it is not acceptable to pass kfree + * in as this function. + * @lock: lock to take in release case + * + * Behaves identical to kref_put with one exception. If the reference count + * drops to zero, the lock will be taken atomically wrt dropping the reference + * count. The release function has to call spin_unlock() without _irqrestore. + */ +static inline int kref_put_spinlock_irqsave(struct kref *kref, + void (*release)(struct kref *kref), + spinlock_t *lock) +{ + unsigned long flags; + + WARN_ON(release == NULL); + if (atomic_add_unless(&kref->refcount, -1, 1)) + return 0; + spin_lock_irqsave(lock, flags); + if (atomic_dec_and_test(&kref->refcount)) { + release(kref); + local_irq_restore(flags); + return 1; + } + spin_unlock_irqrestore(lock, flags); + return 0; +} + static inline int kref_put_mutex(struct kref *kref, void (*release)(struct kref *kref), struct mutex *lock) diff --git a/include/linux/ktime.h b/include/linux/ktime.h index bbca12804d1..fc66b301b64 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -229,7 +229,8 @@ static inline ktime_t timespec_to_ktime(const struct timespec ts) static inline ktime_t timeval_to_ktime(const struct timeval tv) { return (ktime_t) { .tv = { .sec = (s32)tv.tv_sec, - .nsec = (s32)tv.tv_usec * 1000 } }; + .nsec = (s32)(tv.tv_usec * + NSEC_PER_USEC) } }; } /** @@ -320,12 +321,12 @@ static inline s64 ktime_us_delta(const ktime_t later, const ktime_t earlier) static inline ktime_t ktime_add_us(const ktime_t kt, const u64 usec) { - return ktime_add_ns(kt, usec * 1000); + return ktime_add_ns(kt, usec * NSEC_PER_USEC); } static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec) { - return ktime_sub_ns(kt, usec * 1000); + return ktime_sub_ns(kt, usec * NSEC_PER_USEC); } extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs); @@ -338,7 +339,8 @@ extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs); * * Returns true if there was a successful conversion, false if kt was 0. */ -static inline bool ktime_to_timespec_cond(const ktime_t kt, struct timespec *ts) +static inline __must_check bool ktime_to_timespec_cond(const ktime_t kt, + struct timespec *ts) { if (kt.tv64) { *ts = ktime_to_timespec(kt); diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index f0eea07d2c2..a63d83ebd15 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -23,6 +23,7 @@ #include <linux/ratelimit.h> #include <linux/err.h> #include <linux/irqflags.h> +#include <linux/context_tracking.h> #include <asm/signal.h> #include <linux/kvm.h> @@ -124,6 +125,7 @@ static inline bool is_error_page(struct page *page) #define KVM_REQ_MCLOCK_INPROGRESS 19 #define KVM_REQ_EPR_EXIT 20 #define KVM_REQ_SCAN_IOAPIC 21 +#define KVM_REQ_GLOBAL_CLOCK_UPDATE 22 #define KVM_USERSPACE_IRQ_SOURCE_ID 0 #define KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID 1 @@ -144,7 +146,8 @@ struct kvm_io_range { #define NR_IOBUS_DEVS 1000 struct kvm_io_bus { - int dev_count; + int dev_count; + int ioeventfd_count; struct kvm_io_range range[]; }; @@ -760,42 +763,6 @@ static inline int kvm_iommu_unmap_guest(struct kvm *kvm) } #endif -static inline void __guest_enter(void) -{ - /* - * This is running in ioctl context so we can avoid - * the call to vtime_account() with its unnecessary idle check. - */ - vtime_account_system(current); - current->flags |= PF_VCPU; -} - -static inline void __guest_exit(void) -{ - /* - * This is running in ioctl context so we can avoid - * the call to vtime_account() with its unnecessary idle check. - */ - vtime_account_system(current); - current->flags &= ~PF_VCPU; -} - -#ifdef CONFIG_CONTEXT_TRACKING -extern void guest_enter(void); -extern void guest_exit(void); - -#else /* !CONFIG_CONTEXT_TRACKING */ -static inline void guest_enter(void) -{ - __guest_enter(); -} - -static inline void guest_exit(void) -{ - __guest_exit(); -} -#endif /* !CONFIG_CONTEXT_TRACKING */ - static inline void kvm_guest_enter(void) { unsigned long flags; diff --git a/include/linux/lcd.h b/include/linux/lcd.h index e00c3b0ebc6..504f6246f38 100644 --- a/include/linux/lcd.h +++ b/include/linux/lcd.h @@ -112,7 +112,12 @@ static inline void lcd_set_power(struct lcd_device *ld, int power) extern struct lcd_device *lcd_device_register(const char *name, struct device *parent, void *devdata, struct lcd_ops *ops); +extern struct lcd_device *devm_lcd_device_register(struct device *dev, + const char *name, struct device *parent, + void *devdata, struct lcd_ops *ops); extern void lcd_device_unregister(struct lcd_device *ld); +extern void devm_lcd_device_unregister(struct device *dev, + struct lcd_device *ld); #define to_lcd_device(obj) container_of(obj, struct lcd_device, dev) diff --git a/include/linux/libata.h b/include/linux/libata.h index eae7a053dc5..4ea55bb45de 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -399,6 +399,7 @@ enum { ATA_HORKAGE_BROKEN_FPDMA_AA = (1 << 15), /* skip AA */ ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */ ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17), /* Set max sects to 65535 */ + ATA_HORKAGE_ATAPI_DMADIR = (1 << 18), /* device requires dmadir */ /* DMA mask for user DMA control: User visible values; DO NOT renumber */ @@ -746,6 +747,7 @@ struct ata_port { /* Flags that change dynamically, protected by ap->lock */ unsigned int pflags; /* ATA_PFLAG_xxx */ unsigned int print_id; /* user visible unique port ID */ + unsigned int local_port_no; /* host local port num */ unsigned int port_no; /* 0 based port no. inside the host */ #ifdef CONFIG_ATA_SFF @@ -908,6 +910,9 @@ struct ata_port_operations { ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf); ssize_t (*sw_activity_store)(struct ata_device *dev, enum sw_activity val); + ssize_t (*transmit_led_message)(struct ata_port *ap, u32 state, + ssize_t size); + /* * Obsolete */ diff --git a/include/linux/list.h b/include/linux/list.h index 6a1f8df9144..b83e5657365 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -362,6 +362,17 @@ static inline void list_splice_tail_init(struct list_head *list, list_entry((ptr)->next, type, member) /** + * list_first_entry_or_null - get the first element from a list + * @ptr: the list head to take the element from. + * @type: the type of the struct this is embedded in. + * @member: the name of the list_struct within the struct. + * + * Note that if the list is empty, it returns NULL. + */ +#define list_first_entry_or_null(ptr, type, member) \ + (!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL) + +/** * list_for_each - iterate over a list * @pos: the &struct list_head to use as a loop cursor. * @head: the head for your list. diff --git a/include/linux/loop.h b/include/linux/loop.h deleted file mode 100644 index 460b60fa7ad..00000000000 --- a/include/linux/loop.h +++ /dev/null @@ -1,85 +0,0 @@ -/* - * include/linux/loop.h - * - * Written by Theodore Ts'o, 3/29/93. - * - * Copyright 1993 by Theodore Ts'o. Redistribution of this file is - * permitted under the GNU General Public License. - */ -#ifndef _LINUX_LOOP_H -#define _LINUX_LOOP_H - -#include <linux/bio.h> -#include <linux/blkdev.h> -#include <linux/spinlock.h> -#include <linux/mutex.h> -#include <uapi/linux/loop.h> - -/* Possible states of device */ -enum { - Lo_unbound, - Lo_bound, - Lo_rundown, -}; - -struct loop_func_table; - -struct loop_device { - int lo_number; - int lo_refcnt; - loff_t lo_offset; - loff_t lo_sizelimit; - int lo_flags; - int (*transfer)(struct loop_device *, int cmd, - struct page *raw_page, unsigned raw_off, - struct page *loop_page, unsigned loop_off, - int size, sector_t real_block); - char lo_file_name[LO_NAME_SIZE]; - char lo_crypt_name[LO_NAME_SIZE]; - char lo_encrypt_key[LO_KEY_SIZE]; - int lo_encrypt_key_size; - struct loop_func_table *lo_encryption; - __u32 lo_init[2]; - kuid_t lo_key_owner; /* Who set the key */ - int (*ioctl)(struct loop_device *, int cmd, - unsigned long arg); - - struct file * lo_backing_file; - struct block_device *lo_device; - unsigned lo_blocksize; - void *key_data; - - gfp_t old_gfp_mask; - - spinlock_t lo_lock; - struct bio_list lo_bio_list; - unsigned int lo_bio_count; - int lo_state; - struct mutex lo_ctl_mutex; - struct task_struct *lo_thread; - wait_queue_head_t lo_event; - /* wait queue for incoming requests */ - wait_queue_head_t lo_req_wait; - - struct request_queue *lo_queue; - struct gendisk *lo_disk; -}; - -/* Support for loadable transfer modules */ -struct loop_func_table { - int number; /* filter type */ - int (*transfer)(struct loop_device *lo, int cmd, - struct page *raw_page, unsigned raw_off, - struct page *loop_page, unsigned loop_off, - int size, sector_t real_block); - int (*init)(struct loop_device *, const struct loop_info64 *); - /* release is called from loop_unregister_transfer or clr_fd */ - int (*release)(struct loop_device *); - int (*ioctl)(struct loop_device *, int cmd, unsigned long arg); - struct module *owner; -}; - -int loop_register_transfer(struct loop_func_table *funcs); -int loop_unregister_transfer(int number); - -#endif diff --git a/include/linux/math64.h b/include/linux/math64.h index b8ba8554472..2913b86eb12 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -6,7 +6,8 @@ #if BITS_PER_LONG == 64 -#define div64_long(x,y) div64_s64((x),(y)) +#define div64_long(x, y) div64_s64((x), (y)) +#define div64_ul(x, y) div64_u64((x), (y)) /** * div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder @@ -47,7 +48,8 @@ static inline s64 div64_s64(s64 dividend, s64 divisor) #elif BITS_PER_LONG == 32 -#define div64_long(x,y) div_s64((x),(y)) +#define div64_long(x, y) div_s64((x), (y)) +#define div64_ul(x, y) div_u64((x), (y)) #ifndef div_u64_rem static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index d6183f06d8c..7b4d9d79570 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -77,7 +77,8 @@ extern void mem_cgroup_uncharge_cache_page(struct page *page); bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg, struct mem_cgroup *memcg); -int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *memcg); +bool task_in_mem_cgroup(struct task_struct *task, + const struct mem_cgroup *memcg); extern struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page); extern struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p); @@ -273,10 +274,10 @@ static inline bool mm_match_cgroup(struct mm_struct *mm, return true; } -static inline int task_in_mem_cgroup(struct task_struct *task, - const struct mem_cgroup *memcg) +static inline bool task_in_mem_cgroup(struct task_struct *task, + const struct mem_cgroup *memcg) { - return 1; + return true; } static inline struct cgroup_subsys_state diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 3e622c61092..dd38e62b84d 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -234,6 +234,8 @@ static inline void unlock_memory_hotplug(void) {} extern int is_mem_section_removable(unsigned long pfn, unsigned long nr_pages); extern void try_offline_node(int nid); +extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages); +extern void remove_memory(int nid, u64 start, u64 size); #else static inline int is_mem_section_removable(unsigned long pfn, @@ -243,15 +245,23 @@ static inline int is_mem_section_removable(unsigned long pfn, } static inline void try_offline_node(int nid) {} + +static inline int offline_pages(unsigned long start_pfn, unsigned long nr_pages) +{ + return -EINVAL; +} + +static inline void remove_memory(int nid, u64 start, u64 size) {} #endif /* CONFIG_MEMORY_HOTREMOVE */ +extern int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn, + void *arg, int (*func)(struct memory_block *, void *)); extern int mem_online_node(int nid); extern int add_memory(int nid, u64 start, u64 size); extern int arch_add_memory(int nid, u64 start, u64 size); extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages); -extern int offline_memory_block(struct memory_block *mem); extern bool is_memblock_offlined(struct memory_block *mem); -extern int remove_memory(int nid, u64 start, u64 size); +extern void remove_memory(int nid, u64 start, u64 size); extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn, int nr_pages); extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms); diff --git a/include/linux/mfd/abx500/ab8500-sysctrl.h b/include/linux/mfd/abx500/ab8500-sysctrl.h index 990bc93f46e..adba89d9c66 100644 --- a/include/linux/mfd/abx500/ab8500-sysctrl.h +++ b/include/linux/mfd/abx500/ab8500-sysctrl.h @@ -278,8 +278,8 @@ struct ab8500_sysctrl_platform_data { #define AB9540_SYSCLK12CONFCTRL_PLL26TO38ENA BIT(0) #define AB9540_SYSCLK12CONFCTRL_SYSCLK12USBMUXSEL BIT(1) -#define AB9540_SYSCLK12CONFCTRL_INT384MHZMUXSEL_MASK 0x0C -#define AB9540_SYSCLK12CONFCTRL_INT384MHZMUXSEL_SHIFT 2 +#define AB9540_SYSCLK12CONFCTRL_INT384MHZMUXSEL0 BIT(2) +#define AB9540_SYSCLK12CONFCTRL_INT384MHZMUXSEL1 BIT(3) #define AB9540_SYSCLK12CONFCTRL_SYSCLK12BUFMUX BIT(4) #define AB9540_SYSCLK12CONFCTRL_SYSCLK12PLLMUX BIT(5) #define AB9540_SYSCLK12CONFCTRL_SYSCLK2MUXVALID BIT(6) diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index fb1bf7d6a41..0390d5943ed 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -373,13 +373,11 @@ struct ab8500_sysctrl_platform_data; /** * struct ab8500_platform_data - AB8500 platform data * @irq_base: start of AB8500 IRQs, AB8500_NR_IRQS will be used - * @pm_power_off: Should machine pm power off hook be registered or not * @init: board-specific initialization after detection of ab8500 * @regulator: machine-specific constraints for regulators */ struct ab8500_platform_data { int irq_base; - bool pm_power_off; void (*init) (struct ab8500 *); struct ab8500_regulator_platform_data *regulator; struct abx500_gpio_platform_data *gpio; diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h index cc281368dc5..f797bb9b8b5 100644 --- a/include/linux/mfd/arizona/core.h +++ b/include/linux/mfd/arizona/core.h @@ -95,6 +95,8 @@ struct arizona { struct arizona_pdata pdata; + unsigned int external_dcvdd:1; + int irq; struct irq_domain *virq; struct regmap_irq_chip_data *aod_irq_chip; diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h index 80dead1f710..12a5c135c74 100644 --- a/include/linux/mfd/arizona/pdata.h +++ b/include/linux/mfd/arizona/pdata.h @@ -77,7 +77,7 @@ struct arizona_micbias { int mV; /** Regulated voltage */ unsigned int ext_cap:1; /** External capacitor fitted */ unsigned int discharge:1; /** Actively discharge */ - unsigned int fast_start:1; /** Enable aggressive startup ramp rate */ + unsigned int soft_start:1; /** Disable aggressive startup ramp rate */ unsigned int bypass:1; /** Use bypass mode */ }; diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h index 715b6ba3d52..4706d3d46e5 100644 --- a/include/linux/mfd/arizona/registers.h +++ b/include/linux/mfd/arizona/registers.h @@ -215,6 +215,9 @@ #define ARIZONA_DAC_DIGITAL_VOLUME_6R 0x43D #define ARIZONA_DAC_VOLUME_LIMIT_6R 0x43E #define ARIZONA_NOISE_GATE_SELECT_6R 0x43F +#define ARIZONA_DRE_ENABLE 0x440 +#define ARIZONA_DRE_CONTROL_2 0x442 +#define ARIZONA_DRE_CONTROL_3 0x443 #define ARIZONA_DAC_AEC_CONTROL_1 0x450 #define ARIZONA_NOISE_GATE_CONTROL 0x458 #define ARIZONA_PDM_SPK1_CTRL_1 0x490 @@ -1002,6 +1005,7 @@ #define ARIZONA_DSP2_CLOCKING_1 0x1201 #define ARIZONA_DSP2_STATUS_1 0x1204 #define ARIZONA_DSP2_STATUS_2 0x1205 +#define ARIZONA_DSP2_STATUS_3 0x1206 #define ARIZONA_DSP2_SCRATCH_0 0x1240 #define ARIZONA_DSP2_SCRATCH_1 0x1241 #define ARIZONA_DSP2_SCRATCH_2 0x1242 @@ -1010,6 +1014,7 @@ #define ARIZONA_DSP3_CLOCKING_1 0x1301 #define ARIZONA_DSP3_STATUS_1 0x1304 #define ARIZONA_DSP3_STATUS_2 0x1305 +#define ARIZONA_DSP3_STATUS_3 0x1306 #define ARIZONA_DSP3_SCRATCH_0 0x1340 #define ARIZONA_DSP3_SCRATCH_1 0x1341 #define ARIZONA_DSP3_SCRATCH_2 0x1342 @@ -1018,6 +1023,7 @@ #define ARIZONA_DSP4_CLOCKING_1 0x1401 #define ARIZONA_DSP4_STATUS_1 0x1404 #define ARIZONA_DSP4_STATUS_2 0x1405 +#define ARIZONA_DSP4_STATUS_3 0x1406 #define ARIZONA_DSP4_SCRATCH_0 0x1440 #define ARIZONA_DSP4_SCRATCH_1 0x1441 #define ARIZONA_DSP4_SCRATCH_2 0x1442 @@ -3130,6 +3136,47 @@ #define ARIZONA_OUT6R_NGATE_SRC_WIDTH 12 /* OUT6R_NGATE_SRC - [11:0] */ /* + * R1088 (0x440) - DRE Enable + */ +#define ARIZONA_DRE3L_ENA 0x0010 /* DRE3L_ENA */ +#define ARIZONA_DRE3L_ENA_MASK 0x0010 /* DRE3L_ENA */ +#define ARIZONA_DRE3L_ENA_SHIFT 4 /* DRE3L_ENA */ +#define ARIZONA_DRE3L_ENA_WIDTH 1 /* DRE3L_ENA */ +#define ARIZONA_DRE2R_ENA 0x0008 /* DRE2R_ENA */ +#define ARIZONA_DRE2R_ENA_MASK 0x0008 /* DRE2R_ENA */ +#define ARIZONA_DRE2R_ENA_SHIFT 3 /* DRE2R_ENA */ +#define ARIZONA_DRE2R_ENA_WIDTH 1 /* DRE2R_ENA */ +#define ARIZONA_DRE2L_ENA 0x0004 /* DRE2L_ENA */ +#define ARIZONA_DRE2L_ENA_MASK 0x0004 /* DRE2L_ENA */ +#define ARIZONA_DRE2L_ENA_SHIFT 2 /* DRE2L_ENA */ +#define ARIZONA_DRE2L_ENA_WIDTH 1 /* DRE2L_ENA */ +#define ARIZONA_DRE1R_ENA 0x0002 /* DRE1R_ENA */ +#define ARIZONA_DRE1R_ENA_MASK 0x0002 /* DRE1R_ENA */ +#define ARIZONA_DRE1R_ENA_SHIFT 1 /* DRE1R_ENA */ +#define ARIZONA_DRE1R_ENA_WIDTH 1 /* DRE1R_ENA */ +#define ARIZONA_DRE1L_ENA 0x0001 /* DRE1L_ENA */ +#define ARIZONA_DRE1L_ENA_MASK 0x0001 /* DRE1L_ENA */ +#define ARIZONA_DRE1L_ENA_SHIFT 0 /* DRE1L_ENA */ +#define ARIZONA_DRE1L_ENA_WIDTH 1 /* DRE1L_ENA */ + +/* + * R1090 (0x442) - DRE Control 2 + */ +#define ARIZONA_DRE_T_LOW_MASK 0x3F00 /* DRE_T_LOW - [13:8] */ +#define ARIZONA_DRE_T_LOW_SHIFT 8 /* DRE_T_LOW - [13:8] */ +#define ARIZONA_DRE_T_LOW_WIDTH 6 /* DRE_T_LOW - [13:8] */ + +/* + * R1091 (0x443) - DRE Control 3 + */ +#define ARIZONA_DRE_GAIN_SHIFT_MASK 0xC000 /* DRE_GAIN_SHIFT - [15:14] */ +#define ARIZONA_DRE_GAIN_SHIFT_SHIFT 14 /* DRE_GAIN_SHIFT - [15:14] */ +#define ARIZONA_DRE_GAIN_SHIFT_WIDTH 2 /* DRE_GAIN_SHIFT - [15:14] */ +#define ARIZONA_DRE_LOW_LEVEL_ABS_MASK 0x000F /* LOW_LEVEL_ABS - [3:0] */ +#define ARIZONA_DRE_LOW_LEVEL_ABS_SHIFT 0 /* LOW_LEVEL_ABS - [3:0] */ +#define ARIZONA_DRE_LOW_LEVEL_ABS_WIDTH 4 /* LOW_LEVEL_ABS - [3:0] */ + +/* * R1104 (0x450) - DAC AEC Control 1 */ #define ARIZONA_AEC_LOOPBACK_SRC_MASK 0x003C /* AEC_LOOPBACK_SRC - [5:2] */ diff --git a/include/linux/mfd/davinci_voicecodec.h b/include/linux/mfd/davinci_voicecodec.h index 0ab61320ffa..7dd6524d2aa 100644 --- a/include/linux/mfd/davinci_voicecodec.h +++ b/include/linux/mfd/davinci_voicecodec.h @@ -26,8 +26,7 @@ #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/mfd/core.h> - -#include <mach/edma.h> +#include <linux/platform_data/edma.h> /* * Register values. diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index 689e6a0d9c9..ca0790fba2f 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -134,6 +134,11 @@ enum prcmu_clock { PRCMU_SIACLK, PRCMU_SVACLK, PRCMU_ACLK, + PRCMU_HVACLK, /* Ux540 only */ + PRCMU_G1CLK, /* Ux540 only */ + PRCMU_SDMMCHCLK, + PRCMU_CAMCLK, + PRCMU_BML8580CLK, PRCMU_NUM_REG_CLOCKS, PRCMU_SYSCLK = PRCMU_NUM_REG_CLOCKS, PRCMU_CDCLK, @@ -148,6 +153,13 @@ enum prcmu_clock { PRCMU_DSI0ESCCLK, PRCMU_DSI1ESCCLK, PRCMU_DSI2ESCCLK, + /* LCD DSI PLL - Ux540 only */ + PRCMU_PLLDSI_LCD, + PRCMU_DSI0CLK_LCD, + PRCMU_DSI1CLK_LCD, + PRCMU_DSI0ESCCLK_LCD, + PRCMU_DSI1ESCCLK_LCD, + PRCMU_DSI2ESCCLK_LCD, }; /** diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h index 1aa4f13cdfa..244fb0d5158 100644 --- a/include/linux/mfd/max77693-private.h +++ b/include/linux/mfd/max77693-private.h @@ -85,6 +85,19 @@ enum max77693_pmic_reg { MAX77693_PMIC_REG_END, }; +/* MAX77693 CHG_CNFG_00 register */ +#define CHG_CNFG_00_CHG_MASK 0x1 +#define CHG_CNFG_00_BUCK_MASK 0x4 + +/* MAX77693 CHG_CNFG_09 Register */ +#define CHG_CNFG_09_CHGIN_ILIM_MASK 0x7F + +/* MAX77693 CHG_CTRL Register */ +#define SAFEOUT_CTRL_SAFEOUT1_MASK 0x3 +#define SAFEOUT_CTRL_SAFEOUT2_MASK 0xC +#define SAFEOUT_CTRL_ENSAFEOUT1_MASK 0x40 +#define SAFEOUT_CTRL_ENSAFEOUT2_MASK 0x80 + /* Slave addr = 0x4A: MUIC */ enum max77693_muic_reg { MAX77693_MUIC_REG_ID = 0x00, diff --git a/include/linux/mfd/max77693.h b/include/linux/mfd/max77693.h index 3109a6c5c94..676f0f38899 100644 --- a/include/linux/mfd/max77693.h +++ b/include/linux/mfd/max77693.h @@ -30,6 +30,20 @@ #ifndef __LINUX_MFD_MAX77693_H #define __LINUX_MFD_MAX77693_H +/* MAX77686 regulator IDs */ +enum max77693_regulators { + MAX77693_ESAFEOUT1 = 0, + MAX77693_ESAFEOUT2, + MAX77693_CHARGER, + MAX77693_REG_MAX, +}; + +struct max77693_regulator_data { + int id; + struct regulator_init_data *initdata; + struct device_node *of_node; +}; + struct max77693_reg_data { u8 addr; u8 data; @@ -52,6 +66,10 @@ struct max77693_muic_platform_data { struct max77693_platform_data { int wakeup; + /* regulator data */ + struct max77693_regulator_data *regulators; + int num_regulators; + /* muic data */ struct max77693_muic_platform_data *muic_data; }; diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h index bf070755982..41ed59276c0 100644 --- a/include/linux/mfd/mc13xxx.h +++ b/include/linux/mfd/mc13xxx.h @@ -78,20 +78,30 @@ struct mc13xxx_regulator_platform_data { struct mc13xxx_regulator_init_data *regulators; }; +enum { + /* MC13783 LED IDs */ + MC13783_LED_MD, + MC13783_LED_AD, + MC13783_LED_KP, + MC13783_LED_R1, + MC13783_LED_G1, + MC13783_LED_B1, + MC13783_LED_R2, + MC13783_LED_G2, + MC13783_LED_B2, + MC13783_LED_R3, + MC13783_LED_G3, + MC13783_LED_B3, + /* MC13892 LED IDs */ + MC13892_LED_MD, + MC13892_LED_AD, + MC13892_LED_KP, + MC13892_LED_R, + MC13892_LED_G, + MC13892_LED_B, +}; + struct mc13xxx_led_platform_data { -#define MC13783_LED_MD 0 -#define MC13783_LED_AD 1 -#define MC13783_LED_KP 2 -#define MC13783_LED_R1 3 -#define MC13783_LED_G1 4 -#define MC13783_LED_B1 5 -#define MC13783_LED_R2 6 -#define MC13783_LED_G2 7 -#define MC13783_LED_B2 8 -#define MC13783_LED_R3 9 -#define MC13783_LED_G3 10 -#define MC13783_LED_B3 11 -#define MC13783_LED_MAX MC13783_LED_B3 int id; const char *name; const char *default_trigger; @@ -100,46 +110,36 @@ struct mc13xxx_led_platform_data { char max_current; }; +#define MAX_LED_CONTROL_REGS 6 + struct mc13xxx_leds_platform_data { - int num_leds; struct mc13xxx_led_platform_data *led; + int num_leds; -#define MC13783_LED_TRIODE_MD (1 << 0) -#define MC13783_LED_TRIODE_AD (1 << 1) -#define MC13783_LED_TRIODE_KP (1 << 2) -#define MC13783_LED_BOOST_EN (1 << 3) -#define MC13783_LED_TC1HALF (1 << 4) -#define MC13783_LED_SLEWLIMTC (1 << 5) -#define MC13783_LED_SLEWLIMBL (1 << 6) -#define MC13783_LED_TRIODE_TC1 (1 << 7) -#define MC13783_LED_TRIODE_TC2 (1 << 8) -#define MC13783_LED_TRIODE_TC3 (1 << 9) - int flags; - -#define MC13783_LED_AB_DISABLED 0 -#define MC13783_LED_AB_MD1 1 -#define MC13783_LED_AB_MD12 2 -#define MC13783_LED_AB_MD123 3 -#define MC13783_LED_AB_MD1234 4 -#define MC13783_LED_AB_MD1234_AD1 5 -#define MC13783_LED_AB_MD1234_AD12 6 -#define MC13783_LED_AB_MD1_AD 7 - char abmode; - -#define MC13783_LED_ABREF_200MV 0 -#define MC13783_LED_ABREF_400MV 1 -#define MC13783_LED_ABREF_600MV 2 -#define MC13783_LED_ABREF_800MV 3 - char abref; - -#define MC13783_LED_PERIOD_10MS 0 -#define MC13783_LED_PERIOD_100MS 1 -#define MC13783_LED_PERIOD_500MS 2 -#define MC13783_LED_PERIOD_2S 3 - char bl_period; - char tc1_period; - char tc2_period; - char tc3_period; +/* LED Control 0 */ +#define MC13783_LED_C0_ENABLE (1 << 0) +#define MC13783_LED_C0_TRIODE_MD (1 << 7) +#define MC13783_LED_C0_TRIODE_AD (1 << 8) +#define MC13783_LED_C0_TRIODE_KP (1 << 9) +#define MC13783_LED_C0_BOOST (1 << 10) +#define MC13783_LED_C0_ABMODE(x) (((x) & 0x7) << 11) +#define MC13783_LED_C0_ABREF(x) (((x) & 0x3) << 14) +/* LED Control 1 */ +#define MC13783_LED_C1_TC1HALF (1 << 18) +#define MC13783_LED_C1_SLEWLIM (1 << 23) +/* LED Control 2 */ +#define MC13783_LED_C2_PERIOD(x) (((x) & 0x3) << 21) +#define MC13783_LED_C2_SLEWLIM (1 << 23) +/* LED Control 3 */ +#define MC13783_LED_C3_PERIOD(x) (((x) & 0x3) << 21) +#define MC13783_LED_C3_TRIODE_TC1 (1 << 23) +/* LED Control 4 */ +#define MC13783_LED_C4_PERIOD(x) (((x) & 0x3) << 21) +#define MC13783_LED_C4_TRIODE_TC2 (1 << 23) +/* LED Control 5 */ +#define MC13783_LED_C5_PERIOD(x) (((x) & 0x3) << 21) +#define MC13783_LED_C5_TRIODE_TC3 (1 << 23) + u32 led_control[MAX_LED_CONTROL_REGS]; }; struct mc13xxx_buttons_platform_data { diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index 8f21daf62fb..9b81b2bdc46 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -20,6 +20,8 @@ #include <linux/leds.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> +#include <linux/extcon.h> +#include <linux/usb/phy_companion.h> #define PALMAS_NUM_CLIENTS 3 @@ -37,6 +39,12 @@ struct palmas_gpadc; struct palmas_resource; struct palmas_usb; +enum palmas_usb_state { + PALMAS_USB_STATE_DISCONNECT, + PALMAS_USB_STATE_VBUS, + PALMAS_USB_STATE_ID, +}; + struct palmas { struct device *dev; @@ -180,9 +188,6 @@ struct palmas_pmic_platform_data { }; struct palmas_usb_platform_data { - /* Set this if platform wishes its own vbus control */ - int no_control_vbus; - /* Do we enable the wakeup comparator on probe */ int wakeup; }; @@ -350,22 +355,19 @@ struct palmas_usb { struct palmas *palmas; struct device *dev; - /* for vbus reporting with irqs disabled */ - spinlock_t lock; - - struct regulator *vbus_reg; + struct extcon_dev edev; /* used to set vbus, in atomic path */ struct work_struct set_vbus_work; - int irq1; - int irq2; - int irq3; - int irq4; + int id_otg_irq; + int id_irq; + int vbus_otg_irq; + int vbus_irq; int vbus_enable; - u8 linkstat; + enum palmas_usb_state linkstat; }; #define comparator_to_palmas(x) container_of((x), struct palmas_usb, comparator) diff --git a/include/linux/mfd/syscon/clps711x.h b/include/linux/mfd/syscon/clps711x.h new file mode 100644 index 00000000000..26355abae51 --- /dev/null +++ b/include/linux/mfd/syscon/clps711x.h @@ -0,0 +1,94 @@ +/* + * CLPS711X system register bits definitions + * + * Copyright (C) 2013 Alexander Shiyan <shc_work@mail.ru> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef _LINUX_MFD_SYSCON_CLPS711X_H_ +#define _LINUX_MFD_SYSCON_CLPS711X_H_ + +#define SYSCON_OFFSET (0x00) +#define SYSFLG_OFFSET (0x40) + +#define SYSCON1_KBDSCAN(x) ((x) & 15) +#define SYSCON1_KBDSCAN_MASK (15) +#define SYSCON1_TC1M (1 << 4) +#define SYSCON1_TC1S (1 << 5) +#define SYSCON1_TC2M (1 << 6) +#define SYSCON1_TC2S (1 << 7) +#define SYSCON1_BZTOG (1 << 9) +#define SYSCON1_BZMOD (1 << 10) +#define SYSCON1_DBGEN (1 << 11) +#define SYSCON1_LCDEN (1 << 12) +#define SYSCON1_CDENTX (1 << 13) +#define SYSCON1_CDENRX (1 << 14) +#define SYSCON1_SIREN (1 << 15) +#define SYSCON1_ADCKSEL(x) (((x) & 3) << 16) +#define SYSCON1_ADCKSEL_MASK (3 << 16) +#define SYSCON1_EXCKEN (1 << 18) +#define SYSCON1_WAKEDIS (1 << 19) +#define SYSCON1_IRTXM (1 << 20) + +#define SYSCON2_SERSEL (1 << 0) +#define SYSCON2_KBD6 (1 << 1) +#define SYSCON2_DRAMZ (1 << 2) +#define SYSCON2_KBWEN (1 << 3) +#define SYSCON2_SS2TXEN (1 << 4) +#define SYSCON2_PCCARD1 (1 << 5) +#define SYSCON2_PCCARD2 (1 << 6) +#define SYSCON2_SS2RXEN (1 << 7) +#define SYSCON2_SS2MAEN (1 << 9) +#define SYSCON2_OSTB (1 << 12) +#define SYSCON2_CLKENSL (1 << 13) +#define SYSCON2_BUZFREQ (1 << 14) + +#define SYSCON3_ADCCON (1 << 0) +#define SYSCON3_CLKCTL0 (1 << 1) +#define SYSCON3_CLKCTL1 (1 << 2) +#define SYSCON3_DAISEL (1 << 3) +#define SYSCON3_ADCCKNSEN (1 << 4) +#define SYSCON3_VERSN(x) (((x) >> 5) & 7) +#define SYSCON3_VERSN_MASK (7 << 5) +#define SYSCON3_FASTWAKE (1 << 8) +#define SYSCON3_DAIEN (1 << 9) +#define SYSCON3_128FS SYSCON3_DAIEN +#define SYSCON3_ENPD67 (1 << 10) + +#define SYSCON_UARTEN (1 << 8) + +#define SYSFLG1_MCDR (1 << 0) +#define SYSFLG1_DCDET (1 << 1) +#define SYSFLG1_WUDR (1 << 2) +#define SYSFLG1_WUON (1 << 3) +#define SYSFLG1_CTS (1 << 8) +#define SYSFLG1_DSR (1 << 9) +#define SYSFLG1_DCD (1 << 10) +#define SYSFLG1_NBFLG (1 << 12) +#define SYSFLG1_RSTFLG (1 << 13) +#define SYSFLG1_PFFLG (1 << 14) +#define SYSFLG1_CLDFLG (1 << 15) +#define SYSFLG1_CRXFE (1 << 24) +#define SYSFLG1_CTXFF (1 << 25) +#define SYSFLG1_SSIBUSY (1 << 26) +#define SYSFLG1_ID (1 << 29) +#define SYSFLG1_VERID(x) (((x) >> 30) & 3) +#define SYSFLG1_VERID_MASK (3 << 30) + +#define SYSFLG2_SSRXOF (1 << 0) +#define SYSFLG2_RESVAL (1 << 1) +#define SYSFLG2_RESFRM (1 << 2) +#define SYSFLG2_SS2RXFE (1 << 3) +#define SYSFLG2_SS2TXFF (1 << 4) +#define SYSFLG2_SS2TXUF (1 << 5) +#define SYSFLG2_CKMODE (1 << 6) + +#define SYSFLG_UBUSY (1 << 11) +#define SYSFLG_URXFE (1 << 22) +#define SYSFLG_UTXFF (1 << 23) + +#endif diff --git a/include/linux/mfd/tps6507x.h b/include/linux/mfd/tps6507x.h index c923e4864f5..c2ae5693353 100644 --- a/include/linux/mfd/tps6507x.h +++ b/include/linux/mfd/tps6507x.h @@ -163,7 +163,6 @@ struct tps6507x_dev { /* Client devices */ struct tps6507x_pmic *pmic; - struct tps6507x_ts *ts; }; #endif /* __LINUX_MFD_TPS6507X_H */ diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index 94ac944d12f..7e7fbce7a30 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -125,8 +125,15 @@ #define TWL6040_HSDACENA (1 << 0) #define TWL6040_HSDACMODE (1 << 1) +#define TWL6040_HSDRVENA (1 << 2) #define TWL6040_HSDRVMODE (1 << 3) +/* HFLCTL/R (0x14/0x16) fields */ + +#define TWL6040_HFDACENA (1 << 0) +#define TWL6040_HFPGAENA (1 << 1) +#define TWL6040_HFDRVENA (1 << 4) + /* VIBCTLL/R (0x18/0x1A) fields */ #define TWL6040_VIBENA (1 << 0) diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h index 68e77659488..b5046f6313a 100644 --- a/include/linux/mfd/wm8994/pdata.h +++ b/include/linux/mfd/wm8994/pdata.h @@ -182,6 +182,11 @@ struct wm8994_pdata { */ int micdet_delay; + /* Delay between microphone detect completing and reporting on + * insert (specified in ms) + */ + int mic_id_delay; + /* IRQ for microphone detection if brought out directly as a * signal. */ diff --git a/include/linux/mfd/wm8994/registers.h b/include/linux/mfd/wm8994/registers.h index 053548961c1..db8cef3d532 100644 --- a/include/linux/mfd/wm8994/registers.h +++ b/include/linux/mfd/wm8994/registers.h @@ -2668,6 +2668,10 @@ /* * R772 (0x304) - AIF1ADC LRCLK */ +#define WM8958_AIF1_LRCLK_INV 0x1000 /* AIF1_LRCLK_INV */ +#define WM8958_AIF1_LRCLK_INV_MASK 0x1000 /* AIF1_LRCLK_INV */ +#define WM8958_AIF1_LRCLK_INV_SHIFT 12 /* AIF1_LRCLK_INV */ +#define WM8958_AIF1_LRCLK_INV_WIDTH 1 /* AIF1_LRCLK_INV */ #define WM8994_AIF1ADC_LRCLK_DIR 0x0800 /* AIF1ADC_LRCLK_DIR */ #define WM8994_AIF1ADC_LRCLK_DIR_MASK 0x0800 /* AIF1ADC_LRCLK_DIR */ #define WM8994_AIF1ADC_LRCLK_DIR_SHIFT 11 /* AIF1ADC_LRCLK_DIR */ @@ -2679,6 +2683,10 @@ /* * R773 (0x305) - AIF1DAC LRCLK */ +#define WM8958_AIF1_LRCLK_INV 0x1000 /* AIF1_LRCLK_INV */ +#define WM8958_AIF1_LRCLK_INV_MASK 0x1000 /* AIF1_LRCLK_INV */ +#define WM8958_AIF1_LRCLK_INV_SHIFT 12 /* AIF1_LRCLK_INV */ +#define WM8958_AIF1_LRCLK_INV_WIDTH 1 /* AIF1_LRCLK_INV */ #define WM8994_AIF1DAC_LRCLK_DIR 0x0800 /* AIF1DAC_LRCLK_DIR */ #define WM8994_AIF1DAC_LRCLK_DIR_MASK 0x0800 /* AIF1DAC_LRCLK_DIR */ #define WM8994_AIF1DAC_LRCLK_DIR_SHIFT 11 /* AIF1DAC_LRCLK_DIR */ diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h index 67f46ad6920..352eec9df1b 100644 --- a/include/linux/mlx4/qp.h +++ b/include/linux/mlx4/qp.h @@ -126,7 +126,7 @@ struct mlx4_rss_context { struct mlx4_qp_path { u8 fl; - u8 reserved1[1]; + u8 vlan_control; u8 disable_pkey_check; u8 pkey_index; u8 counter_index; @@ -141,11 +141,32 @@ struct mlx4_qp_path { u8 sched_queue; u8 vlan_index; u8 feup; - u8 reserved3; + u8 fvl_rx; u8 reserved4[2]; u8 dmac[6]; }; +enum { /* fl */ + MLX4_FL_CV = 1 << 6, + MLX4_FL_ETH_HIDE_CQE_VLAN = 1 << 2 +}; +enum { /* vlan_control */ + MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED = 1 << 6, + MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED = 1 << 2, + MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED = 1 << 1, /* 802.1p priority tag */ + MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED = 1 << 0 +}; + +enum { /* feup */ + MLX4_FEUP_FORCE_ETH_UP = 1 << 6, /* force Eth UP */ + MLX4_FSM_FORCE_ETH_SRC_MAC = 1 << 5, /* force Source MAC */ + MLX4_FVL_FORCE_ETH_VLAN = 1 << 3 /* force Eth vlan */ +}; + +enum { /* fvl_rx */ + MLX4_FVL_RX_FORCE_ETH_VLAN = 1 << 0 /* enforce Eth rx vlan */ +}; + struct mlx4_qp_context { __be32 flags; __be32 pd; @@ -185,6 +206,10 @@ struct mlx4_qp_context { u32 reserved5[10]; }; +enum { /* param3 */ + MLX4_STRIP_VLAN = 1 << 30 +}; + /* Which firmware version adds support for NEC (NoErrorCompletion) bit */ #define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232) diff --git a/include/linux/mm.h b/include/linux/mm.h index e0c8528a41a..b87681adf0b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -25,11 +25,17 @@ struct file_ra_state; struct user_struct; struct writeback_control; -#ifndef CONFIG_DISCONTIGMEM /* Don't use mapnrs, do it properly */ +#ifndef CONFIG_NEED_MULTIPLE_NODES /* Don't use mapnrs, do it properly */ extern unsigned long max_mapnr; + +static inline void set_max_mapnr(unsigned long limit) +{ + max_mapnr = limit; +} +#else +static inline void set_max_mapnr(unsigned long limit) { } #endif -extern unsigned long num_physpages; extern unsigned long totalram_pages; extern void * high_memory; extern int page_cluster; @@ -52,6 +58,9 @@ extern unsigned long sysctl_admin_reserve_kbytes; /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) +/* test whether an address (unsigned long or pointer) is aligned to PAGE_SIZE */ +#define PAGE_ALIGNED(addr) IS_ALIGNED((unsigned long)addr, PAGE_SIZE) + /* * Linux kernel virtual memory manager primitives. * The idea being to have a "virtual" mm in the same way @@ -1041,7 +1050,8 @@ int get_kernel_page(unsigned long start, int write, struct page **pages); struct page *get_dump_page(unsigned long addr); extern int try_to_release_page(struct page * page, gfp_t gfp_mask); -extern void do_invalidatepage(struct page *page, unsigned long offset); +extern void do_invalidatepage(struct page *page, unsigned int offset, + unsigned int length); int __set_page_dirty_nobuffers(struct page *page); int __set_page_dirty_no_writeback(struct page *page); @@ -1304,11 +1314,12 @@ extern void free_initmem(void); /* * Free reserved pages within range [PAGE_ALIGN(start), end & PAGE_MASK) * into the buddy system. The freed pages will be poisoned with pattern - * "poison" if it's non-zero. + * "poison" if it's within range [0, UCHAR_MAX]. * Return pages freed into the buddy system. */ -extern unsigned long free_reserved_area(unsigned long start, unsigned long end, +extern unsigned long free_reserved_area(void *start, void *end, int poison, char *s); + #ifdef CONFIG_HIGHMEM /* * Free a highmem page into the buddy system, adjusting totalhigh_pages @@ -1317,10 +1328,8 @@ extern unsigned long free_reserved_area(unsigned long start, unsigned long end, extern void free_highmem_page(struct page *page); #endif -static inline void adjust_managed_page_count(struct page *page, long count) -{ - totalram_pages += count; -} +extern void adjust_managed_page_count(struct page *page, long count); +extern void mem_init_print_info(const char *str); /* Free the reserved page into the buddy system, so it gets managed. */ static inline void __free_reserved_page(struct page *page) @@ -1344,18 +1353,29 @@ static inline void mark_page_reserved(struct page *page) /* * Default method to free all the __init memory into the buddy system. - * The freed pages will be poisoned with pattern "poison" if it is - * non-zero. Return pages freed into the buddy system. + * The freed pages will be poisoned with pattern "poison" if it's within + * range [0, UCHAR_MAX]. + * Return pages freed into the buddy system. */ static inline unsigned long free_initmem_default(int poison) { extern char __init_begin[], __init_end[]; - return free_reserved_area(PAGE_ALIGN((unsigned long)&__init_begin) , - ((unsigned long)&__init_end) & PAGE_MASK, + return free_reserved_area(&__init_begin, &__init_end, poison, "unused kernel"); } +static inline unsigned long get_num_physpages(void) +{ + int nid; + unsigned long phys_pages = 0; + + for_each_online_node(nid) + phys_pages += node_present_pages(nid); + + return phys_pages; +} + #ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP /* * With CONFIG_HAVE_MEMBLOCK_NODE_MAP set, an architecture may initialise its diff --git a/include/linux/mman.h b/include/linux/mman.h index 9aa863da287..92dc257251e 100644 --- a/include/linux/mman.h +++ b/include/linux/mman.h @@ -11,11 +11,17 @@ extern int sysctl_overcommit_memory; extern int sysctl_overcommit_ratio; extern struct percpu_counter vm_committed_as; +#ifdef CONFIG_SMP +extern s32 vm_committed_as_batch; +#else +#define vm_committed_as_batch 0 +#endif + unsigned long vm_memory_committed(void); static inline void vm_acct_memory(long pages) { - percpu_counter_add(&vm_committed_as, pages); + __percpu_counter_add(&vm_committed_as, pages, vm_committed_as_batch); } static inline void vm_unacct_memory(long pages) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 5c76737d836..ae19af5ec02 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -474,10 +474,16 @@ struct zone { * frequently read in proximity to zone->lock. It's good to * give them a chance of being in the same cacheline. * - * Write access to present_pages and managed_pages at runtime should - * be protected by lock_memory_hotplug()/unlock_memory_hotplug(). - * Any reader who can't tolerant drift of present_pages and - * managed_pages should hold memory hotplug lock to get a stable value. + * Write access to present_pages at runtime should be protected by + * lock_memory_hotplug()/unlock_memory_hotplug(). Any reader who can't + * tolerant drift of present_pages should hold memory hotplug lock to + * get a stable value. + * + * Read access to managed_pages should be safe because it's unsigned + * long. Write access to zone->managed_pages and totalram_pages are + * protected by managed_page_count_lock at runtime. Idealy only + * adjust_managed_page_count() should be used instead of directly + * touching zone->managed_pages and totalram_pages. */ unsigned long spanned_pages; unsigned long present_pages; @@ -495,6 +501,13 @@ typedef enum { ZONE_CONGESTED, /* zone has many dirty pages backed by * a congested BDI */ + ZONE_TAIL_LRU_DIRTY, /* reclaim scanning has recently found + * many dirty file pages at the tail + * of the LRU. + */ + ZONE_WRITEBACK, /* reclaim scanning has recently found + * many pages under writeback + */ } zone_flags_t; static inline void zone_set_flag(struct zone *zone, zone_flags_t flag) @@ -517,6 +530,16 @@ static inline int zone_is_reclaim_congested(const struct zone *zone) return test_bit(ZONE_CONGESTED, &zone->flags); } +static inline int zone_is_reclaim_dirty(const struct zone *zone) +{ + return test_bit(ZONE_TAIL_LRU_DIRTY, &zone->flags); +} + +static inline int zone_is_reclaim_writeback(const struct zone *zone) +{ + return test_bit(ZONE_WRITEBACK, &zone->flags); +} + static inline int zone_is_reclaim_locked(const struct zone *zone) { return test_bit(ZONE_RECLAIM_LOCKED, &zone->flags); @@ -716,7 +739,10 @@ typedef struct pglist_data { * or node_spanned_pages stay constant. Holding this will also * guarantee that any pfn_valid() stays that way. * - * Nests above zone->lock and zone->size_seqlock. + * pgdat_resize_lock() and pgdat_resize_unlock() are provided to + * manipulate node_size_lock without checking for CONFIG_MEMORY_HOTPLUG. + * + * Nests above zone->lock and zone->span_seqlock */ spinlock_t node_size_lock; #endif @@ -1111,6 +1137,10 @@ struct mem_section { struct page_cgroup *page_cgroup; unsigned long pad; #endif + /* + * WARNING: mem_section must be a power-of-2 in size for the + * calculation and use of SECTION_ROOT_MASK to make sense. + */ }; #ifdef CONFIG_SPARSEMEM_EXTREME diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index b508016fb76..b62d4af6c66 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -456,7 +456,8 @@ enum dmi_field { }; struct dmi_strmatch { - unsigned char slot; + unsigned char slot:7; + unsigned char exact_match:1; char substr[79]; }; @@ -474,7 +475,8 @@ struct dmi_system_id { */ #define dmi_device_id dmi_system_id -#define DMI_MATCH(a, b) { a, b } +#define DMI_MATCH(a, b) { .slot = a, .substr = b } +#define DMI_EXACT_MATCH(a, b) { .slot = a, .substr = b, .exact_match = 1 } #define PLATFORM_NAME_SIZE 20 #define PLATFORM_MODULE_PREFIX "platform:" @@ -577,4 +579,23 @@ struct mei_cl_device_id { kernel_ulong_t driver_info; }; +/* RapidIO */ + +#define RIO_ANY_ID 0xffff + +/** + * struct rio_device_id - RIO device identifier + * @did: RapidIO device ID + * @vid: RapidIO vendor ID + * @asm_did: RapidIO assembly device ID + * @asm_vid: RapidIO assembly vendor ID + * + * Identifies a RapidIO device based on both the device/vendor IDs and + * the assembly device/vendor IDs. + */ +struct rio_device_id { + __u16 did, vid; + __u16 asm_did, asm_vid; +}; + #endif /* LINUX_MOD_DEVICETABLE_H */ diff --git a/include/linux/msi.h b/include/linux/msi.h index 20c2d6dd5d2..ee66f3a12fb 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -35,6 +35,7 @@ struct msi_desc { u32 masked; /* mask bits */ unsigned int irq; + unsigned int nvec_used; /* number of messages */ struct list_head list; union { diff --git a/include/linux/mutex-debug.h b/include/linux/mutex-debug.h index 731d77d6e15..4ac8b1977b7 100644 --- a/include/linux/mutex-debug.h +++ b/include/linux/mutex-debug.h @@ -3,6 +3,7 @@ #include <linux/linkage.h> #include <linux/lockdep.h> +#include <linux/debug_locks.h> /* * Mutexes - debugging helpers: diff --git a/include/linux/mutex.h b/include/linux/mutex.h index 433da8a1a42..3793ed7feee 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -10,6 +10,7 @@ #ifndef __LINUX_MUTEX_H #define __LINUX_MUTEX_H +#include <asm/current.h> #include <linux/list.h> #include <linux/spinlock_types.h> #include <linux/linkage.h> @@ -77,6 +78,40 @@ struct mutex_waiter { #endif }; +struct ww_class { + atomic_long_t stamp; + struct lock_class_key acquire_key; + struct lock_class_key mutex_key; + const char *acquire_name; + const char *mutex_name; +}; + +struct ww_acquire_ctx { + struct task_struct *task; + unsigned long stamp; + unsigned acquired; +#ifdef CONFIG_DEBUG_MUTEXES + unsigned done_acquire; + struct ww_class *ww_class; + struct ww_mutex *contending_lock; +#endif +#ifdef CONFIG_DEBUG_LOCK_ALLOC + struct lockdep_map dep_map; +#endif +#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH + unsigned deadlock_inject_interval; + unsigned deadlock_inject_countdown; +#endif +}; + +struct ww_mutex { + struct mutex base; + struct ww_acquire_ctx *ctx; +#ifdef CONFIG_DEBUG_MUTEXES + struct ww_class *ww_class; +#endif +}; + #ifdef CONFIG_DEBUG_MUTEXES # include <linux/mutex-debug.h> #else @@ -101,8 +136,11 @@ static inline void mutex_destroy(struct mutex *lock) {} #ifdef CONFIG_DEBUG_LOCK_ALLOC # define __DEP_MAP_MUTEX_INITIALIZER(lockname) \ , .dep_map = { .name = #lockname } +# define __WW_CLASS_MUTEX_INITIALIZER(lockname, ww_class) \ + , .ww_class = &ww_class #else # define __DEP_MAP_MUTEX_INITIALIZER(lockname) +# define __WW_CLASS_MUTEX_INITIALIZER(lockname, ww_class) #endif #define __MUTEX_INITIALIZER(lockname) \ @@ -112,13 +150,49 @@ static inline void mutex_destroy(struct mutex *lock) {} __DEBUG_MUTEX_INITIALIZER(lockname) \ __DEP_MAP_MUTEX_INITIALIZER(lockname) } +#define __WW_CLASS_INITIALIZER(ww_class) \ + { .stamp = ATOMIC_LONG_INIT(0) \ + , .acquire_name = #ww_class "_acquire" \ + , .mutex_name = #ww_class "_mutex" } + +#define __WW_MUTEX_INITIALIZER(lockname, class) \ + { .base = { \__MUTEX_INITIALIZER(lockname) } \ + __WW_CLASS_MUTEX_INITIALIZER(lockname, class) } + #define DEFINE_MUTEX(mutexname) \ struct mutex mutexname = __MUTEX_INITIALIZER(mutexname) +#define DEFINE_WW_CLASS(classname) \ + struct ww_class classname = __WW_CLASS_INITIALIZER(classname) + +#define DEFINE_WW_MUTEX(mutexname, ww_class) \ + struct ww_mutex mutexname = __WW_MUTEX_INITIALIZER(mutexname, ww_class) + + extern void __mutex_init(struct mutex *lock, const char *name, struct lock_class_key *key); /** + * ww_mutex_init - initialize the w/w mutex + * @lock: the mutex to be initialized + * @ww_class: the w/w class the mutex should belong to + * + * Initialize the w/w mutex to unlocked state and associate it with the given + * class. + * + * It is not allowed to initialize an already locked mutex. + */ +static inline void ww_mutex_init(struct ww_mutex *lock, + struct ww_class *ww_class) +{ + __mutex_init(&lock->base, ww_class->mutex_name, &ww_class->mutex_key); + lock->ctx = NULL; +#ifdef CONFIG_DEBUG_MUTEXES + lock->ww_class = ww_class; +#endif +} + +/** * mutex_is_locked - is the mutex locked * @lock: the mutex to be queried * @@ -136,6 +210,7 @@ static inline int mutex_is_locked(struct mutex *lock) #ifdef CONFIG_DEBUG_LOCK_ALLOC extern void mutex_lock_nested(struct mutex *lock, unsigned int subclass); extern void _mutex_lock_nest_lock(struct mutex *lock, struct lockdep_map *nest_lock); + extern int __must_check mutex_lock_interruptible_nested(struct mutex *lock, unsigned int subclass); extern int __must_check mutex_lock_killable_nested(struct mutex *lock, @@ -147,7 +222,7 @@ extern int __must_check mutex_lock_killable_nested(struct mutex *lock, #define mutex_lock_nest_lock(lock, nest_lock) \ do { \ - typecheck(struct lockdep_map *, &(nest_lock)->dep_map); \ + typecheck(struct lockdep_map *, &(nest_lock)->dep_map); \ _mutex_lock_nest_lock(lock, &(nest_lock)->dep_map); \ } while (0) @@ -170,6 +245,292 @@ extern int __must_check mutex_lock_killable(struct mutex *lock); */ extern int mutex_trylock(struct mutex *lock); extern void mutex_unlock(struct mutex *lock); + +/** + * ww_acquire_init - initialize a w/w acquire context + * @ctx: w/w acquire context to initialize + * @ww_class: w/w class of the context + * + * Initializes an context to acquire multiple mutexes of the given w/w class. + * + * Context-based w/w mutex acquiring can be done in any order whatsoever within + * a given lock class. Deadlocks will be detected and handled with the + * wait/wound logic. + * + * Mixing of context-based w/w mutex acquiring and single w/w mutex locking can + * result in undetected deadlocks and is so forbidden. Mixing different contexts + * for the same w/w class when acquiring mutexes can also result in undetected + * deadlocks, and is hence also forbidden. Both types of abuse will be caught by + * enabling CONFIG_PROVE_LOCKING. + * + * Nesting of acquire contexts for _different_ w/w classes is possible, subject + * to the usual locking rules between different lock classes. + * + * An acquire context must be released with ww_acquire_fini by the same task + * before the memory is freed. It is recommended to allocate the context itself + * on the stack. + */ +static inline void ww_acquire_init(struct ww_acquire_ctx *ctx, + struct ww_class *ww_class) +{ + ctx->task = current; + ctx->stamp = atomic_long_inc_return(&ww_class->stamp); + ctx->acquired = 0; +#ifdef CONFIG_DEBUG_MUTEXES + ctx->ww_class = ww_class; + ctx->done_acquire = 0; + ctx->contending_lock = NULL; +#endif +#ifdef CONFIG_DEBUG_LOCK_ALLOC + debug_check_no_locks_freed((void *)ctx, sizeof(*ctx)); + lockdep_init_map(&ctx->dep_map, ww_class->acquire_name, + &ww_class->acquire_key, 0); + mutex_acquire(&ctx->dep_map, 0, 0, _RET_IP_); +#endif +#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH + ctx->deadlock_inject_interval = 1; + ctx->deadlock_inject_countdown = ctx->stamp & 0xf; +#endif +} + +/** + * ww_acquire_done - marks the end of the acquire phase + * @ctx: the acquire context + * + * Marks the end of the acquire phase, any further w/w mutex lock calls using + * this context are forbidden. + * + * Calling this function is optional, it is just useful to document w/w mutex + * code and clearly designated the acquire phase from actually using the locked + * data structures. + */ +static inline void ww_acquire_done(struct ww_acquire_ctx *ctx) +{ +#ifdef CONFIG_DEBUG_MUTEXES + lockdep_assert_held(ctx); + + DEBUG_LOCKS_WARN_ON(ctx->done_acquire); + ctx->done_acquire = 1; +#endif +} + +/** + * ww_acquire_fini - releases a w/w acquire context + * @ctx: the acquire context to free + * + * Releases a w/w acquire context. This must be called _after_ all acquired w/w + * mutexes have been released with ww_mutex_unlock. + */ +static inline void ww_acquire_fini(struct ww_acquire_ctx *ctx) +{ +#ifdef CONFIG_DEBUG_MUTEXES + mutex_release(&ctx->dep_map, 0, _THIS_IP_); + + DEBUG_LOCKS_WARN_ON(ctx->acquired); + if (!config_enabled(CONFIG_PROVE_LOCKING)) + /* + * lockdep will normally handle this, + * but fail without anyway + */ + ctx->done_acquire = 1; + + if (!config_enabled(CONFIG_DEBUG_LOCK_ALLOC)) + /* ensure ww_acquire_fini will still fail if called twice */ + ctx->acquired = ~0U; +#endif +} + +extern int __must_check __ww_mutex_lock(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx); +extern int __must_check __ww_mutex_lock_interruptible(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx); + +/** + * ww_mutex_lock - acquire the w/w mutex + * @lock: the mutex to be acquired + * @ctx: w/w acquire context, or NULL to acquire only a single lock. + * + * Lock the w/w mutex exclusively for this task. + * + * Deadlocks within a given w/w class of locks are detected and handled with the + * wait/wound algorithm. If the lock isn't immediately avaiable this function + * will either sleep until it is (wait case). Or it selects the current context + * for backing off by returning -EDEADLK (wound case). Trying to acquire the + * same lock with the same context twice is also detected and signalled by + * returning -EALREADY. Returns 0 if the mutex was successfully acquired. + * + * In the wound case the caller must release all currently held w/w mutexes for + * the given context and then wait for this contending lock to be available by + * calling ww_mutex_lock_slow. Alternatively callers can opt to not acquire this + * lock and proceed with trying to acquire further w/w mutexes (e.g. when + * scanning through lru lists trying to free resources). + * + * The mutex must later on be released by the same task that + * acquired it. The task may not exit without first unlocking the mutex. Also, + * kernel memory where the mutex resides must not be freed with the mutex still + * locked. The mutex must first be initialized (or statically defined) before it + * can be locked. memset()-ing the mutex to 0 is not allowed. The mutex must be + * of the same w/w lock class as was used to initialize the acquire context. + * + * A mutex acquired with this function must be released with ww_mutex_unlock. + */ +static inline int ww_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ctx) +{ + if (ctx) + return __ww_mutex_lock(lock, ctx); + else { + mutex_lock(&lock->base); + return 0; + } +} + +/** + * ww_mutex_lock_interruptible - acquire the w/w mutex, interruptible + * @lock: the mutex to be acquired + * @ctx: w/w acquire context + * + * Lock the w/w mutex exclusively for this task. + * + * Deadlocks within a given w/w class of locks are detected and handled with the + * wait/wound algorithm. If the lock isn't immediately avaiable this function + * will either sleep until it is (wait case). Or it selects the current context + * for backing off by returning -EDEADLK (wound case). Trying to acquire the + * same lock with the same context twice is also detected and signalled by + * returning -EALREADY. Returns 0 if the mutex was successfully acquired. If a + * signal arrives while waiting for the lock then this function returns -EINTR. + * + * In the wound case the caller must release all currently held w/w mutexes for + * the given context and then wait for this contending lock to be available by + * calling ww_mutex_lock_slow_interruptible. Alternatively callers can opt to + * not acquire this lock and proceed with trying to acquire further w/w mutexes + * (e.g. when scanning through lru lists trying to free resources). + * + * The mutex must later on be released by the same task that + * acquired it. The task may not exit without first unlocking the mutex. Also, + * kernel memory where the mutex resides must not be freed with the mutex still + * locked. The mutex must first be initialized (or statically defined) before it + * can be locked. memset()-ing the mutex to 0 is not allowed. The mutex must be + * of the same w/w lock class as was used to initialize the acquire context. + * + * A mutex acquired with this function must be released with ww_mutex_unlock. + */ +static inline int __must_check ww_mutex_lock_interruptible(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx) +{ + if (ctx) + return __ww_mutex_lock_interruptible(lock, ctx); + else + return mutex_lock_interruptible(&lock->base); +} + +/** + * ww_mutex_lock_slow - slowpath acquiring of the w/w mutex + * @lock: the mutex to be acquired + * @ctx: w/w acquire context + * + * Acquires a w/w mutex with the given context after a wound case. This function + * will sleep until the lock becomes available. + * + * The caller must have released all w/w mutexes already acquired with the + * context and then call this function on the contended lock. + * + * Afterwards the caller may continue to (re)acquire the other w/w mutexes it + * needs with ww_mutex_lock. Note that the -EALREADY return code from + * ww_mutex_lock can be used to avoid locking this contended mutex twice. + * + * It is forbidden to call this function with any other w/w mutexes associated + * with the context held. It is forbidden to call this on anything else than the + * contending mutex. + * + * Note that the slowpath lock acquiring can also be done by calling + * ww_mutex_lock directly. This function here is simply to help w/w mutex + * locking code readability by clearly denoting the slowpath. + */ +static inline void +ww_mutex_lock_slow(struct ww_mutex *lock, struct ww_acquire_ctx *ctx) +{ + int ret; +#ifdef CONFIG_DEBUG_MUTEXES + DEBUG_LOCKS_WARN_ON(!ctx->contending_lock); +#endif + ret = ww_mutex_lock(lock, ctx); + (void)ret; +} + +/** + * ww_mutex_lock_slow_interruptible - slowpath acquiring of the w/w mutex, + * interruptible + * @lock: the mutex to be acquired + * @ctx: w/w acquire context + * + * Acquires a w/w mutex with the given context after a wound case. This function + * will sleep until the lock becomes available and returns 0 when the lock has + * been acquired. If a signal arrives while waiting for the lock then this + * function returns -EINTR. + * + * The caller must have released all w/w mutexes already acquired with the + * context and then call this function on the contended lock. + * + * Afterwards the caller may continue to (re)acquire the other w/w mutexes it + * needs with ww_mutex_lock. Note that the -EALREADY return code from + * ww_mutex_lock can be used to avoid locking this contended mutex twice. + * + * It is forbidden to call this function with any other w/w mutexes associated + * with the given context held. It is forbidden to call this on anything else + * than the contending mutex. + * + * Note that the slowpath lock acquiring can also be done by calling + * ww_mutex_lock_interruptible directly. This function here is simply to help + * w/w mutex locking code readability by clearly denoting the slowpath. + */ +static inline int __must_check +ww_mutex_lock_slow_interruptible(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx) +{ +#ifdef CONFIG_DEBUG_MUTEXES + DEBUG_LOCKS_WARN_ON(!ctx->contending_lock); +#endif + return ww_mutex_lock_interruptible(lock, ctx); +} + +extern void ww_mutex_unlock(struct ww_mutex *lock); + +/** + * ww_mutex_trylock - tries to acquire the w/w mutex without acquire context + * @lock: mutex to lock + * + * Trylocks a mutex without acquire context, so no deadlock detection is + * possible. Returns 1 if the mutex has been acquired successfully, 0 otherwise. + */ +static inline int __must_check ww_mutex_trylock(struct ww_mutex *lock) +{ + return mutex_trylock(&lock->base); +} + +/*** + * ww_mutex_destroy - mark a w/w mutex unusable + * @lock: the mutex to be destroyed + * + * This function marks the mutex uninitialized, and any subsequent + * use of the mutex is forbidden. The mutex must not be locked when + * this function is called. + */ +static inline void ww_mutex_destroy(struct ww_mutex *lock) +{ + mutex_destroy(&lock->base); +} + +/** + * ww_mutex_is_locked - is the w/w mutex locked + * @lock: the mutex to be queried + * + * Returns 1 if the mutex is locked, 0 if unlocked. + */ +static inline bool ww_mutex_is_locked(struct ww_mutex *lock) +{ + return mutex_is_locked(&lock->base); +} + extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock); #ifndef CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX diff --git a/include/linux/nbd.h b/include/linux/nbd.h index 4871170a04a..ae4981ebd18 100644 --- a/include/linux/nbd.h +++ b/include/linux/nbd.h @@ -41,6 +41,7 @@ struct nbd_device { u64 bytesize; pid_t pid; /* pid of nbd-client, if attached */ int xmit_timeout; + int disconnect; /* a disconnect has been requested by user */ }; #endif diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index a94a5a0ab12..96e4c21e15e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1695,6 +1695,7 @@ extern int init_dummy_netdev(struct net_device *dev); extern struct net_device *dev_get_by_index(struct net *net, int ifindex); extern struct net_device *__dev_get_by_index(struct net *net, int ifindex); extern struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex); +extern int netdev_get_name(struct net *net, char *name, int ifindex); extern int dev_restart(struct net_device *dev); #ifdef CONFIG_NETPOLL_TRAP extern int netpoll_trap(void); @@ -2733,6 +2734,17 @@ static inline netdev_features_t netdev_get_wanted_features( } netdev_features_t netdev_increment_features(netdev_features_t all, netdev_features_t one, netdev_features_t mask); + +/* Allow TSO being used on stacked device : + * Performing the GSO segmentation before last device + * is a performance improvement. + */ +static inline netdev_features_t netdev_add_tso_features(netdev_features_t features, + netdev_features_t mask) +{ + return netdev_increment_features(features, NETIF_F_ALL_TSO, mask); +} + int __netdev_update_features(struct net_device *dev); void netdev_update_features(struct net_device *dev); void netdev_change_features(struct net_device *dev); diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h index 98ffb54988b..2d4df6ce043 100644 --- a/include/linux/netfilter_ipv6.h +++ b/include/linux/netfilter_ipv6.h @@ -17,6 +17,22 @@ extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook, extern int ipv6_netfilter_init(void); extern void ipv6_netfilter_fini(void); + +/* + * Hook functions for ipv6 to allow xt_* modules to be built-in even + * if IPv6 is a module. + */ +struct nf_ipv6_ops { + int (*chk_addr)(struct net *net, const struct in6_addr *addr, + const struct net_device *dev, int strict); +}; + +extern const struct nf_ipv6_ops __rcu *nf_ipv6_ops; +static inline const struct nf_ipv6_ops *nf_get_ipv6_ops(void) +{ + return rcu_dereference(nf_ipv6_ops); +} + #else /* CONFIG_NETFILTER */ static inline int ipv6_netfilter_init(void) { return 0; } static inline void ipv6_netfilter_fini(void) { return; } diff --git a/include/linux/of_address.h b/include/linux/of_address.h index 0506eb53519..4c2e6f26432 100644 --- a/include/linux/of_address.h +++ b/include/linux/of_address.h @@ -4,6 +4,36 @@ #include <linux/errno.h> #include <linux/of.h> +struct of_pci_range_parser { + struct device_node *node; + const __be32 *range; + const __be32 *end; + int np; + int pna; +}; + +struct of_pci_range { + u32 pci_space; + u64 pci_addr; + u64 cpu_addr; + u64 size; + u32 flags; +}; + +#define for_each_of_pci_range(parser, range) \ + for (; of_pci_range_parser_one(parser, range);) + +static inline void of_pci_range_to_resource(struct of_pci_range *range, + struct device_node *np, + struct resource *res) +{ + res->flags = range->flags; + res->start = range->cpu_addr; + res->end = range->cpu_addr + range->size - 1; + res->parent = res->child = res->sibling = NULL; + res->name = np->full_name; +} + #ifdef CONFIG_OF_ADDRESS extern u64 of_translate_address(struct device_node *np, const __be32 *addr); extern bool of_can_translate_address(struct device_node *dev); @@ -27,6 +57,11 @@ static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; } #define pci_address_to_pio pci_address_to_pio #endif +extern int of_pci_range_parser_init(struct of_pci_range_parser *parser, + struct device_node *node); +extern struct of_pci_range *of_pci_range_parser_one( + struct of_pci_range_parser *parser, + struct of_pci_range *range); #else /* CONFIG_OF_ADDRESS */ #ifndef of_address_to_resource static inline int of_address_to_resource(struct device_node *dev, int index, @@ -53,6 +88,19 @@ static inline const __be32 *of_get_address(struct device_node *dev, int index, { return NULL; } + +static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser, + struct device_node *node) +{ + return -1; +} + +static inline struct of_pci_range *of_pci_range_parser_one( + struct of_pci_range_parser *parser, + struct of_pci_range *range) +{ + return NULL; +} #endif /* CONFIG_OF_ADDRESS */ diff --git a/include/linux/of_device.h b/include/linux/of_device.h index 901b7435e89..9d27475feec 100644 --- a/include/linux/of_device.h +++ b/include/linux/of_device.h @@ -4,12 +4,12 @@ #include <linux/platform_device.h> #include <linux/of_platform.h> /* temporary until merge */ -#ifdef CONFIG_OF_DEVICE #include <linux/of.h> #include <linux/mod_devicetable.h> struct device; +#ifdef CONFIG_OF extern const struct of_device_id *of_match_device( const struct of_device_id *matches, const struct device *dev); extern void of_device_make_bus_id(struct device *dev); @@ -43,7 +43,7 @@ static inline void of_device_node_put(struct device *dev) of_node_put(dev->of_node); } -#else /* CONFIG_OF_DEVICE */ +#else /* CONFIG_OF */ static inline int of_driver_match_device(struct device *dev, struct device_driver *drv) @@ -67,6 +67,6 @@ static inline const struct of_device_id *of_match_device( { return NULL; } -#endif /* CONFIG_OF_DEVICE */ +#endif /* CONFIG_OF */ #endif /* _LINUX_OF_DEVICE_H */ diff --git a/include/linux/of_dma.h b/include/linux/of_dma.h index 364dda73487..ae36298ba07 100644 --- a/include/linux/of_dma.h +++ b/include/linux/of_dma.h @@ -21,7 +21,6 @@ struct device_node; struct of_dma { struct list_head of_dma_controllers; struct device_node *of_node; - int of_dma_nbcells; struct dma_chan *(*of_dma_xlate) (struct of_phandle_args *, struct of_dma *); void *of_dma_data; diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h index bb115deb761..7a04826018c 100644 --- a/include/linux/of_pci.h +++ b/include/linux/of_pci.h @@ -10,5 +10,7 @@ int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq); struct device_node; struct device_node *of_pci_find_child_device(struct device_node *parent, unsigned int devfn); +int of_pci_get_devfn(struct device_node *np); +int of_pci_parse_bus_range(struct device_node *node, struct resource *res); #endif diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h index 3863a4dbdf1..05cb4a92825 100644 --- a/include/linux/of_platform.h +++ b/include/linux/of_platform.h @@ -11,7 +11,6 @@ * */ -#ifdef CONFIG_OF_DEVICE #include <linux/device.h> #include <linux/mod_devicetable.h> #include <linux/pm.h> @@ -52,27 +51,6 @@ struct of_dev_auxdata { { .compatible = _compat, .phys_addr = _phys, .name = _name, \ .platform_data = _pdata } -/** - * of_platform_driver - Legacy of-aware driver for platform devices. - * - * An of_platform_driver driver is attached to a basic platform_device on - * the ibm ebus (ibmebus_bus_type). - */ -struct of_platform_driver -{ - int (*probe)(struct platform_device* dev, - const struct of_device_id *match); - int (*remove)(struct platform_device* dev); - - int (*suspend)(struct platform_device* dev, pm_message_t state); - int (*resume)(struct platform_device* dev); - int (*shutdown)(struct platform_device* dev); - - struct device_driver driver; -}; -#define to_of_platform_driver(drv) \ - container_of(drv,struct of_platform_driver, driver) - extern const struct of_device_id of_default_bus_match_table[]; /* Platform drivers register/unregister */ @@ -81,7 +59,6 @@ extern struct platform_device *of_device_alloc(struct device_node *np, struct device *parent); extern struct platform_device *of_find_device_by_node(struct device_node *np); -#ifdef CONFIG_OF_ADDRESS /* device reg helpers depend on OF_ADDRESS */ /* Platform devices and busses creation */ extern struct platform_device *of_platform_device_create(struct device_node *np, const char *bus_id, @@ -90,17 +67,12 @@ extern struct platform_device *of_platform_device_create(struct device_node *np, extern int of_platform_bus_probe(struct device_node *root, const struct of_device_id *matches, struct device *parent); +#ifdef CONFIG_OF_ADDRESS extern int of_platform_populate(struct device_node *root, const struct of_device_id *matches, const struct of_dev_auxdata *lookup, struct device *parent); -#endif /* CONFIG_OF_ADDRESS */ - -#endif /* CONFIG_OF_DEVICE */ - -#if !defined(CONFIG_OF_ADDRESS) -struct of_dev_auxdata; -struct device; +#else static inline int of_platform_populate(struct device_node *root, const struct of_device_id *matches, const struct of_dev_auxdata *lookup, @@ -108,6 +80,6 @@ static inline int of_platform_populate(struct device_node *root, { return -ENODEV; } -#endif /* !CONFIG_OF_ADDRESS */ +#endif #endif /* _LINUX_OF_PLATFORM_H */ diff --git a/include/linux/omap-mailbox.h b/include/linux/omap-mailbox.h new file mode 100644 index 00000000000..f8322d9cd23 --- /dev/null +++ b/include/linux/omap-mailbox.h @@ -0,0 +1,29 @@ +/* + * omap-mailbox: interprocessor communication module for OMAP + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef OMAP_MAILBOX_H +#define OMAP_MAILBOX_H + +typedef u32 mbox_msg_t; +struct omap_mbox; + +typedef int __bitwise omap_mbox_irq_t; +#define IRQ_TX ((__force omap_mbox_irq_t) 1) +#define IRQ_RX ((__force omap_mbox_irq_t) 2) + +int omap_mbox_msg_send(struct omap_mbox *, mbox_msg_t msg); + +struct omap_mbox *omap_mbox_get(const char *, struct notifier_block *nb); +void omap_mbox_put(struct omap_mbox *mbox, struct notifier_block *nb); + +void omap_mbox_save_ctx(struct omap_mbox *mbox); +void omap_mbox_restore_ctx(struct omap_mbox *mbox); +void omap_mbox_enable_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq); +void omap_mbox_disable_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq); + +#endif /* OMAP_MAILBOX_H */ diff --git a/include/linux/pageblock-flags.h b/include/linux/pageblock-flags.h index be655e4a2a7..2ee8cd2466b 100644 --- a/include/linux/pageblock-flags.h +++ b/include/linux/pageblock-flags.h @@ -80,10 +80,4 @@ void set_pageblock_flags_group(struct page *page, unsigned long flags, PB_migrate_skip) #endif /* CONFIG_COMPACTION */ -#define get_pageblock_flags(page) \ - get_pageblock_flags_group(page, 0, PB_migrate_end) -#define set_pageblock_flags(page, flags) \ - set_pageblock_flags_group(page, flags, \ - 0, PB_migrate_end) - #endif /* PAGEBLOCK_FLAGS_H */ diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h index 2aa12b8499c..e4dbfab3772 100644 --- a/include/linux/pagevec.h +++ b/include/linux/pagevec.h @@ -21,7 +21,7 @@ struct pagevec { }; void __pagevec_release(struct pagevec *pvec); -void __pagevec_lru_add(struct pagevec *pvec, enum lru_list lru); +void __pagevec_lru_add(struct pagevec *pvec); unsigned pagevec_lookup(struct pagevec *pvec, struct address_space *mapping, pgoff_t start, unsigned nr_pages); unsigned pagevec_lookup_tag(struct pagevec *pvec, @@ -64,36 +64,4 @@ static inline void pagevec_release(struct pagevec *pvec) __pagevec_release(pvec); } -static inline void __pagevec_lru_add_anon(struct pagevec *pvec) -{ - __pagevec_lru_add(pvec, LRU_INACTIVE_ANON); -} - -static inline void __pagevec_lru_add_active_anon(struct pagevec *pvec) -{ - __pagevec_lru_add(pvec, LRU_ACTIVE_ANON); -} - -static inline void __pagevec_lru_add_file(struct pagevec *pvec) -{ - __pagevec_lru_add(pvec, LRU_INACTIVE_FILE); -} - -static inline void __pagevec_lru_add_active_file(struct pagevec *pvec) -{ - __pagevec_lru_add(pvec, LRU_ACTIVE_FILE); -} - -static inline void pagevec_lru_add_file(struct pagevec *pvec) -{ - if (pagevec_count(pvec)) - __pagevec_lru_add_file(pvec); -} - -static inline void pagevec_lru_add_anon(struct pagevec *pvec) -{ - if (pagevec_count(pvec)) - __pagevec_lru_add_anon(pvec); -} - #endif /* _LINUX_PAGEVEC_H */ diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 81b31613eb2..17044797727 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -60,11 +60,13 @@ static inline void acpi_pci_slot_remove(struct pci_bus *bus) { } void acpiphp_init(void); void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle); void acpiphp_remove_slots(struct pci_bus *bus); +void acpiphp_check_host_bridge(acpi_handle handle); #else static inline void acpiphp_init(void) { } static inline void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle) { } static inline void acpiphp_remove_slots(struct pci_bus *bus) { } +static inline void acpiphp_check_host_bridge(acpi_handle handle) { } #endif #else /* CONFIG_ACPI */ diff --git a/include/linux/pci.h b/include/linux/pci.h index 3a24e4ff324..0fd1f1582fa 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -364,7 +364,8 @@ static inline struct pci_dev *pci_physfn(struct pci_dev *dev) return dev; } -struct pci_dev *alloc_pci_dev(void); +struct pci_dev *pci_alloc_dev(struct pci_bus *bus); +struct pci_dev * __deprecated alloc_pci_dev(void); #define to_pci_dev(n) container_of(n, struct pci_dev, dev) #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL) @@ -1018,6 +1019,8 @@ int pci_request_selected_regions_exclusive(struct pci_dev *, int, const char *); void pci_release_selected_regions(struct pci_dev *, int); /* drivers/pci/bus.c */ +struct pci_bus *pci_bus_get(struct pci_bus *bus); +void pci_bus_put(struct pci_bus *bus); void pci_add_resource(struct list_head *resources, struct resource *res); void pci_add_resource_offset(struct list_head *resources, struct resource *res, resource_size_t offset); @@ -1643,6 +1646,7 @@ void pcibios_set_master(struct pci_dev *dev); int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state); int pcibios_add_device(struct pci_dev *dev); +void pcibios_release_device(struct pci_dev *dev); #ifdef CONFIG_PCI_MMCONFIG void __init pci_mmcfg_early_init(void); diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index c1291624846..3bed2e89611 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -556,7 +556,6 @@ #define PCI_DEVICE_ID_AMD_8131_BRIDGE 0x7450 #define PCI_DEVICE_ID_AMD_8131_APIC 0x7451 #define PCI_DEVICE_ID_AMD_8132_BRIDGE 0x7458 -#define PCI_DEVICE_ID_AMD_HUDSON2_SMBUS 0x780b #define PCI_DEVICE_ID_AMD_CS5535_IDE 0x208F #define PCI_DEVICE_ID_AMD_CS5536_ISA 0x2090 #define PCI_DEVICE_ID_AMD_CS5536_FLASH 0x2091 @@ -568,8 +567,9 @@ #define PCI_DEVICE_ID_AMD_CS5536_IDE 0x209A #define PCI_DEVICE_ID_AMD_LX_VIDEO 0x2081 #define PCI_DEVICE_ID_AMD_LX_AES 0x2082 -#define PCI_DEVICE_ID_AMD_HUDSON2_IDE 0x780c #define PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE 0x7800 +#define PCI_DEVICE_ID_AMD_HUDSON2_SMBUS 0x780b +#define PCI_DEVICE_ID_AMD_HUDSON2_IDE 0x780c #define PCI_VENDOR_ID_TRIDENT 0x1023 #define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX 0x2000 @@ -2476,6 +2476,9 @@ #define PCI_VENDOR_ID_ASMEDIA 0x1b21 +#define PCI_VENDOR_ID_CIRCUITCO 0x1cc8 +#define PCI_SUBSYSTEM_ID_CIRCUITCO_MINNOWBOARD 0x0001 + #define PCI_VENDOR_ID_TEKRAM 0x1de1 #define PCI_DEVICE_ID_TEKRAM_DC290 0xdc29 diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h new file mode 100644 index 00000000000..95961f0bf62 --- /dev/null +++ b/include/linux/percpu-refcount.h @@ -0,0 +1,174 @@ +/* + * Percpu refcounts: + * (C) 2012 Google, Inc. + * Author: Kent Overstreet <koverstreet@google.com> + * + * This implements a refcount with similar semantics to atomic_t - atomic_inc(), + * atomic_dec_and_test() - but percpu. + * + * There's one important difference between percpu refs and normal atomic_t + * refcounts; you have to keep track of your initial refcount, and then when you + * start shutting down you call percpu_ref_kill() _before_ dropping the initial + * refcount. + * + * The refcount will have a range of 0 to ((1U << 31) - 1), i.e. one bit less + * than an atomic_t - this is because of the way shutdown works, see + * percpu_ref_kill()/PCPU_COUNT_BIAS. + * + * Before you call percpu_ref_kill(), percpu_ref_put() does not check for the + * refcount hitting 0 - it can't, if it was in percpu mode. percpu_ref_kill() + * puts the ref back in single atomic_t mode, collecting the per cpu refs and + * issuing the appropriate barriers, and then marks the ref as shutting down so + * that percpu_ref_put() will check for the ref hitting 0. After it returns, + * it's safe to drop the initial ref. + * + * USAGE: + * + * See fs/aio.c for some example usage; it's used there for struct kioctx, which + * is created when userspaces calls io_setup(), and destroyed when userspace + * calls io_destroy() or the process exits. + * + * In the aio code, kill_ioctx() is called when we wish to destroy a kioctx; it + * calls percpu_ref_kill(), then hlist_del_rcu() and sychronize_rcu() to remove + * the kioctx from the proccess's list of kioctxs - after that, there can't be + * any new users of the kioctx (from lookup_ioctx()) and it's then safe to drop + * the initial ref with percpu_ref_put(). + * + * Code that does a two stage shutdown like this often needs some kind of + * explicit synchronization to ensure the initial refcount can only be dropped + * once - percpu_ref_kill() does this for you, it returns true once and false if + * someone else already called it. The aio code uses it this way, but it's not + * necessary if the code has some other mechanism to synchronize teardown. + * around. + */ + +#ifndef _LINUX_PERCPU_REFCOUNT_H +#define _LINUX_PERCPU_REFCOUNT_H + +#include <linux/atomic.h> +#include <linux/kernel.h> +#include <linux/percpu.h> +#include <linux/rcupdate.h> + +struct percpu_ref; +typedef void (percpu_ref_func_t)(struct percpu_ref *); + +struct percpu_ref { + atomic_t count; + /* + * The low bit of the pointer indicates whether the ref is in percpu + * mode; if set, then get/put will manipulate the atomic_t (this is a + * hack because we need to keep the pointer around for + * percpu_ref_kill_rcu()) + */ + unsigned __percpu *pcpu_count; + percpu_ref_func_t *release; + percpu_ref_func_t *confirm_kill; + struct rcu_head rcu; +}; + +int __must_check percpu_ref_init(struct percpu_ref *ref, + percpu_ref_func_t *release); +void percpu_ref_cancel_init(struct percpu_ref *ref); +void percpu_ref_kill_and_confirm(struct percpu_ref *ref, + percpu_ref_func_t *confirm_kill); + +/** + * percpu_ref_kill - drop the initial ref + * @ref: percpu_ref to kill + * + * Must be used to drop the initial ref on a percpu refcount; must be called + * precisely once before shutdown. + * + * Puts @ref in non percpu mode, then does a call_rcu() before gathering up the + * percpu counters and dropping the initial ref. + */ +static inline void percpu_ref_kill(struct percpu_ref *ref) +{ + return percpu_ref_kill_and_confirm(ref, NULL); +} + +#define PCPU_STATUS_BITS 2 +#define PCPU_STATUS_MASK ((1 << PCPU_STATUS_BITS) - 1) +#define PCPU_REF_PTR 0 +#define PCPU_REF_DEAD 1 + +#define REF_STATUS(count) (((unsigned long) count) & PCPU_STATUS_MASK) + +/** + * percpu_ref_get - increment a percpu refcount + * @ref: percpu_ref to get + * + * Analagous to atomic_inc(). + */ +static inline void percpu_ref_get(struct percpu_ref *ref) +{ + unsigned __percpu *pcpu_count; + + rcu_read_lock_sched(); + + pcpu_count = ACCESS_ONCE(ref->pcpu_count); + + if (likely(REF_STATUS(pcpu_count) == PCPU_REF_PTR)) + __this_cpu_inc(*pcpu_count); + else + atomic_inc(&ref->count); + + rcu_read_unlock_sched(); +} + +/** + * percpu_ref_tryget - try to increment a percpu refcount + * @ref: percpu_ref to try-get + * + * Increment a percpu refcount unless it has already been killed. Returns + * %true on success; %false on failure. + * + * Completion of percpu_ref_kill() in itself doesn't guarantee that tryget + * will fail. For such guarantee, percpu_ref_kill_and_confirm() should be + * used. After the confirm_kill callback is invoked, it's guaranteed that + * no new reference will be given out by percpu_ref_tryget(). + */ +static inline bool percpu_ref_tryget(struct percpu_ref *ref) +{ + unsigned __percpu *pcpu_count; + int ret = false; + + rcu_read_lock_sched(); + + pcpu_count = ACCESS_ONCE(ref->pcpu_count); + + if (likely(REF_STATUS(pcpu_count) == PCPU_REF_PTR)) { + __this_cpu_inc(*pcpu_count); + ret = true; + } + + rcu_read_unlock_sched(); + + return ret; +} + +/** + * percpu_ref_put - decrement a percpu refcount + * @ref: percpu_ref to put + * + * Decrement the refcount, and if 0, call the release function (which was passed + * to percpu_ref_init()) + */ +static inline void percpu_ref_put(struct percpu_ref *ref) +{ + unsigned __percpu *pcpu_count; + + rcu_read_lock_sched(); + + pcpu_count = ACCESS_ONCE(ref->pcpu_count); + + if (likely(REF_STATUS(pcpu_count) == PCPU_REF_PTR)) + __this_cpu_dec(*pcpu_count); + else if (unlikely(atomic_dec_and_test(&ref->count))) + ref->release(ref); + + rcu_read_unlock_sched(); +} + +#endif diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index f463a46424e..8873f82c7ba 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -73,13 +73,18 @@ struct perf_raw_record { * * support for mispred, predicted is optional. In case it * is not supported mispred = predicted = 0. + * + * in_tx: running in a hardware transaction + * abort: aborting a hardware transaction */ struct perf_branch_entry { __u64 from; __u64 to; __u64 mispred:1, /* target mispredicted */ predicted:1,/* target predicted */ - reserved:62; + in_tx:1, /* in transaction */ + abort:1, /* transaction abort */ + reserved:60; }; /* @@ -113,6 +118,8 @@ struct hw_perf_event_extra { int idx; /* index in shared_regs->regs[] */ }; +struct event_constraint; + /** * struct hw_perf_event - performance event hardware details: */ @@ -131,6 +138,8 @@ struct hw_perf_event { struct hw_perf_event_extra extra_reg; struct hw_perf_event_extra branch_reg; + + struct event_constraint *constraint; }; struct { /* software */ struct hrtimer hrtimer; @@ -188,12 +197,13 @@ struct pmu { struct device *dev; const struct attribute_group **attr_groups; - char *name; + const char *name; int type; int * __percpu pmu_disable_count; struct perf_cpu_context * __percpu pmu_cpu_context; int task_ctx_nr; + int hrtimer_interval_ms; /* * Fully disable/enable this PMU, can be used to protect from the PMI @@ -389,8 +399,7 @@ struct perf_event { /* mmap bits */ struct mutex mmap_mutex; atomic_t mmap_count; - int mmap_locked; - struct user_struct *mmap_user; + struct ring_buffer *rb; struct list_head rb_entry; @@ -501,8 +510,9 @@ struct perf_cpu_context { struct perf_event_context *task_ctx; int active_oncpu; int exclusive; + struct hrtimer hrtimer; + ktime_t hrtimer_interval; struct list_head rotation_list; - int jiffies_interval; struct pmu *unique_pmu; struct perf_cgroup *cgrp; }; @@ -518,7 +528,7 @@ struct perf_output_handle { #ifdef CONFIG_PERF_EVENTS -extern int perf_pmu_register(struct pmu *pmu, char *name, int type); +extern int perf_pmu_register(struct pmu *pmu, const char *name, int type); extern void perf_pmu_unregister(struct pmu *pmu); extern int perf_num_counters(void); @@ -696,10 +706,17 @@ static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64 extern int sysctl_perf_event_paranoid; extern int sysctl_perf_event_mlock; extern int sysctl_perf_event_sample_rate; +extern int sysctl_perf_cpu_time_max_percent; + +extern void perf_sample_event_took(u64 sample_len_ns); extern int perf_proc_update_handler(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); +extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos); + static inline bool perf_paranoid_tracepoint_raw(void) { @@ -743,6 +760,7 @@ extern unsigned int perf_output_skip(struct perf_output_handle *handle, unsigned int len); extern int perf_swevent_get_recursion_context(void); extern void perf_swevent_put_recursion_context(int rctx); +extern u64 perf_swevent_set_period(struct perf_event *event); extern void perf_event_enable(struct perf_event *event); extern void perf_event_disable(struct perf_event *event); extern int __perf_event_disable(void *info); @@ -782,6 +800,7 @@ static inline void perf_event_fork(struct task_struct *tsk) { } static inline void perf_event_init(void) { } static inline int perf_swevent_get_recursion_context(void) { return -1; } static inline void perf_swevent_put_recursion_context(int rctx) { } +static inline u64 perf_swevent_set_period(struct perf_event *event) { return 0; } static inline void perf_event_enable(struct perf_event *event) { } static inline void perf_event_disable(struct perf_event *event) { } static inline int __perf_event_disable(void *info) { return -1; } @@ -803,7 +822,7 @@ static inline void perf_restore_debug_store(void) { } #define perf_output_put(handle, x) perf_output_copy((handle), &(x), sizeof(x)) /* - * This has to have a higher priority than migration_notifier in sched.c. + * This has to have a higher priority than migration_notifier in sched/core.c. */ #define perf_cpu_notifier(fn) \ do { \ diff --git a/include/linux/pid.h b/include/linux/pid.h index a089a3c447f..23705a53abb 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -86,11 +86,9 @@ extern struct task_struct *get_pid_task(struct pid *pid, enum pid_type); extern struct pid *get_task_pid(struct task_struct *task, enum pid_type type); /* - * attach_pid() and detach_pid() must be called with the tasklist_lock - * write-held. + * these helpers must be called with the tasklist_lock write-held. */ -extern void attach_pid(struct task_struct *task, enum pid_type type, - struct pid *pid); +extern void attach_pid(struct task_struct *task, enum pid_type); extern void detach_pid(struct task_struct *task, enum pid_type); extern void change_pid(struct task_struct *task, enum pid_type, struct pid *pid); diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h index 4aad3cea69a..18eccefea06 100644 --- a/include/linux/pinctrl/consumer.h +++ b/include/linux/pinctrl/consumer.h @@ -40,6 +40,25 @@ extern int pinctrl_select_state(struct pinctrl *p, struct pinctrl_state *s); extern struct pinctrl * __must_check devm_pinctrl_get(struct device *dev); extern void devm_pinctrl_put(struct pinctrl *p); +#ifdef CONFIG_PM +extern int pinctrl_pm_select_default_state(struct device *dev); +extern int pinctrl_pm_select_sleep_state(struct device *dev); +extern int pinctrl_pm_select_idle_state(struct device *dev); +#else +static inline int pinctrl_pm_select_default_state(struct device *dev) +{ + return 0; +} +static inline int pinctrl_pm_select_sleep_state(struct device *dev) +{ + return 0; +} +static inline int pinctrl_pm_select_idle_state(struct device *dev) +{ + return 0; +} +#endif + #else /* !CONFIG_PINCTRL */ static inline int pinctrl_request_gpio(unsigned gpio) @@ -92,6 +111,21 @@ static inline void devm_pinctrl_put(struct pinctrl *p) { } +static inline int pinctrl_pm_select_default_state(struct device *dev) +{ + return 0; +} + +static inline int pinctrl_pm_select_sleep_state(struct device *dev) +{ + return 0; +} + +static inline int pinctrl_pm_select_idle_state(struct device *dev) +{ + return 0; +} + #endif /* CONFIG_PINCTRL */ static inline struct pinctrl * __must_check pinctrl_get_select( @@ -158,47 +192,4 @@ static inline struct pinctrl * __must_check devm_pinctrl_get_select_default( return devm_pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT); } -#ifdef CONFIG_PINCONF - -extern int pin_config_get(const char *dev_name, const char *name, - unsigned long *config); -extern int pin_config_set(const char *dev_name, const char *name, - unsigned long config); -extern int pin_config_group_get(const char *dev_name, - const char *pin_group, - unsigned long *config); -extern int pin_config_group_set(const char *dev_name, - const char *pin_group, - unsigned long config); - -#else - -static inline int pin_config_get(const char *dev_name, const char *name, - unsigned long *config) -{ - return 0; -} - -static inline int pin_config_set(const char *dev_name, const char *name, - unsigned long config) -{ - return 0; -} - -static inline int pin_config_group_get(const char *dev_name, - const char *pin_group, - unsigned long *config) -{ - return 0; -} - -static inline int pin_config_group_set(const char *dev_name, - const char *pin_group, - unsigned long config) -{ - return 0; -} - -#endif - #endif /* __LINUX_PINCTRL_CONSUMER_H */ diff --git a/include/linux/pinctrl/devinfo.h b/include/linux/pinctrl/devinfo.h index 6e5f8a985ea..281cb91ddcf 100644 --- a/include/linux/pinctrl/devinfo.h +++ b/include/linux/pinctrl/devinfo.h @@ -28,6 +28,10 @@ struct dev_pin_info { struct pinctrl *p; struct pinctrl_state *default_state; +#ifdef CONFIG_PM + struct pinctrl_state *sleep_state; + struct pinctrl_state *idle_state; +#endif }; extern int pinctrl_bind_pins(struct device *dev); diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index 72474e18f1e..bf7e989abcb 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -29,25 +29,38 @@ * if for example some other pin is going to drive the signal connected * to it for a while. Pins used for input are usually always high * impedance. + * @PIN_CONFIG_BIAS_BUS_HOLD: the pin will be set to weakly latch so that it + * weakly drives the last value on a tristate bus, also known as a "bus + * holder", "bus keeper" or "repeater". This allows another device on the + * bus to change the value by driving the bus high or low and switching to + * tristate. The argument is ignored. * @PIN_CONFIG_BIAS_PULL_UP: the pin will be pulled up (usually with high * impedance to VDD). If the argument is != 0 pull-up is enabled, - * if it is 0, pull-up is disabled. + * if it is 0, pull-up is total, i.e. the pin is connected to VDD. * @PIN_CONFIG_BIAS_PULL_DOWN: the pin will be pulled down (usually with high * impedance to GROUND). If the argument is != 0 pull-down is enabled, - * if it is 0, pull-down is disabled. + * if it is 0, pull-down is total, i.e. the pin is connected to GROUND. + * @PIN_CONFIG_BIAS_PULL_PIN_DEFAULT: the pin will be pulled up or down based + * on embedded knowledge of the controller hardware, like current mux + * function. The pull direction and possibly strength too will normally + * be decided completely inside the hardware block and not be readable + * from the kernel side. + * If the argument is != 0 pull up/down is enabled, if it is 0, the + * configuration is ignored. The proper way to disable it is to use + * @PIN_CONFIG_BIAS_DISABLE. * @PIN_CONFIG_DRIVE_PUSH_PULL: the pin will be driven actively high and * low, this is the most typical case and is typically achieved with two - * active transistors on the output. Sending this config will enabale + * active transistors on the output. Setting this config will enable * push-pull mode, the argument is ignored. * @PIN_CONFIG_DRIVE_OPEN_DRAIN: the pin will be driven with open drain (open * collector) which means it is usually wired with other output ports - * which are then pulled up with an external resistor. Sending this - * config will enabale open drain mode, the argument is ignored. + * which are then pulled up with an external resistor. Setting this + * config will enable open drain mode, the argument is ignored. * @PIN_CONFIG_DRIVE_OPEN_SOURCE: the pin will be driven with open source - * (open emitter). Sending this config will enabale open drain mode, the + * (open emitter). Setting this config will enable open drain mode, the * argument is ignored. - * @PIN_CONFIG_DRIVE_STRENGTH: the pin will output the current passed as - * argument. The argument is in mA. + * @PIN_CONFIG_DRIVE_STRENGTH: the pin will sink or source at most the current + * passed as argument. The argument is in mA. * @PIN_CONFIG_INPUT_SCHMITT_ENABLE: control schmitt-trigger mode on the pin. * If the argument != 0, schmitt-trigger mode is enabled. If it's 0, * schmitt-trigger mode is disabled. @@ -57,14 +70,14 @@ * setting pins to this mode. * @PIN_CONFIG_INPUT_DEBOUNCE: this will configure the pin to debounce mode, * which means it will wait for signals to settle when reading inputs. The - * argument gives the debounce time on a custom format. Setting the + * argument gives the debounce time in usecs. Setting the * argument to zero turns debouncing off. * @PIN_CONFIG_POWER_SOURCE: if the pin can select between different power * supplies, the argument to this parameter (on a custom format) tells * the driver which alternative power source to use. * @PIN_CONFIG_SLEW_RATE: if the pin can select slew rate, the argument to - * this parameter (on a custom format) tells the driver which alternative - * slew rate to use. + * this parameter (on a custom format) tells the driver which alternative + * slew rate to use. * @PIN_CONFIG_LOW_POWER_MODE: this will configure the pin for low power * operation, if several modes of operation are supported these can be * passed in the argument on a custom form, else just use argument 1 @@ -78,8 +91,10 @@ enum pin_config_param { PIN_CONFIG_BIAS_DISABLE, PIN_CONFIG_BIAS_HIGH_IMPEDANCE, + PIN_CONFIG_BIAS_BUS_HOLD, PIN_CONFIG_BIAS_PULL_UP, PIN_CONFIG_BIAS_PULL_DOWN, + PIN_CONFIG_BIAS_PULL_PIN_DEFAULT, PIN_CONFIG_DRIVE_PUSH_PULL, PIN_CONFIG_DRIVE_OPEN_DRAIN, PIN_CONFIG_DRIVE_OPEN_SOURCE, diff --git a/include/linux/pinctrl/pinconf.h b/include/linux/pinctrl/pinconf.h index 1ad4f31ef6b..f6998692bdc 100644 --- a/include/linux/pinctrl/pinconf.h +++ b/include/linux/pinctrl/pinconf.h @@ -30,7 +30,7 @@ struct seq_file; * @pin_config_set: configure an individual pin * @pin_config_group_get: get configurations for an entire pin group * @pin_config_group_set: configure all pins in a group - * @pin_config_group_dbg_set: optional debugfs to modify a pin configuration + * @pin_config_dbg_parse_modify: optional debugfs to modify a pin configuration * @pin_config_dbg_show: optional debugfs display hook that will provide * per-device info for a certain pin in debugfs * @pin_config_group_dbg_show: optional debugfs display hook that will provide diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h index 2c2a9e8d857..5979147d2bd 100644 --- a/include/linux/pinctrl/pinctrl.h +++ b/include/linux/pinctrl/pinctrl.h @@ -49,7 +49,8 @@ struct pinctrl_pin_desc { * @name: a name for the chip in this range * @id: an ID number for the chip in this range * @base: base offset of the GPIO range - * @pin_base: base pin number of the GPIO range + * @pin_base: base pin number of the GPIO range if pins == NULL + * @pins: enumeration of pins in GPIO range or NULL * @npins: number of pins in the GPIO range, including the base number * @gc: an optional pointer to a gpio_chip */ @@ -59,6 +60,7 @@ struct pinctrl_gpio_range { unsigned int id; unsigned int base; unsigned int pin_base; + unsigned const *pins; unsigned int npins; struct gpio_chip *gc; }; diff --git a/include/linux/platform_data/ad7303.h b/include/linux/platform_data/ad7303.h new file mode 100644 index 00000000000..de6a7a6b4bb --- /dev/null +++ b/include/linux/platform_data/ad7303.h @@ -0,0 +1,21 @@ +/* + * Analog Devices AD7303 DAC driver + * + * Copyright 2013 Analog Devices Inc. + * + * Licensed under the GPL-2. + */ + +#ifndef __IIO_ADC_AD7303_H__ +#define __IIO_ADC_AD7303_H__ + +/** + * struct ad7303_platform_data - AD7303 platform data + * @use_external_ref: If set to true use an external voltage reference connected + * to the REF pin, otherwise use the internal reference derived from Vdd. + */ +struct ad7303_platform_data { + bool use_external_ref; +}; + +#endif diff --git a/include/linux/platform_data/clk-lpss.h b/include/linux/platform_data/clk-lpss.h index 528e73ce46d..23901992b9d 100644 --- a/include/linux/platform_data/clk-lpss.h +++ b/include/linux/platform_data/clk-lpss.h @@ -13,6 +13,11 @@ #ifndef __CLK_LPSS_H #define __CLK_LPSS_H +struct lpss_clk_data { + const char *name; + struct clk *clk; +}; + extern int lpt_clk_init(void); #endif /* __CLK_LPSS_H */ diff --git a/include/linux/platform_data/clk-ux500.h b/include/linux/platform_data/clk-ux500.h index 320d9c39ea0..9d98f3aaa16 100644 --- a/include/linux/platform_data/clk-ux500.h +++ b/include/linux/platform_data/clk-ux500.h @@ -12,7 +12,9 @@ void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, u32 clkrst5_base, u32 clkrst6_base); -void u9540_clk_init(void); -void u8540_clk_init(void); +void u9540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, + u32 clkrst5_base, u32 clkrst6_base); +void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, + u32 clkrst5_base, u32 clkrst6_base); #endif /* __CLK_UX500_H */ diff --git a/include/linux/platform_data/cyttsp4.h b/include/linux/platform_data/cyttsp4.h new file mode 100644 index 00000000000..6eba54aff1d --- /dev/null +++ b/include/linux/platform_data/cyttsp4.h @@ -0,0 +1,76 @@ +/* + * Header file for: + * Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers. + * For use with Cypress Txx3xx parts. + * Supported parts include: + * CY8CTST341 + * CY8CTMA340 + * + * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. + * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2, and only version 2, as published by the + * Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Contact Cypress Semiconductor at www.cypress.com (kev@cypress.com) + * + */ +#ifndef _CYTTSP4_H_ +#define _CYTTSP4_H_ + +#define CYTTSP4_MT_NAME "cyttsp4_mt" +#define CYTTSP4_I2C_NAME "cyttsp4_i2c_adapter" +#define CYTTSP4_SPI_NAME "cyttsp4_spi_adapter" + +#define CY_TOUCH_SETTINGS_MAX 32 + +struct touch_framework { + const uint16_t *abs; + uint8_t size; + uint8_t enable_vkeys; +} __packed; + +struct cyttsp4_mt_platform_data { + struct touch_framework *frmwrk; + unsigned short flags; + char const *inp_dev_name; +}; + +struct touch_settings { + const uint8_t *data; + uint32_t size; + uint8_t tag; +} __packed; + +struct cyttsp4_core_platform_data { + int irq_gpio; + int rst_gpio; + int level_irq_udelay; + int (*xres)(struct cyttsp4_core_platform_data *pdata, + struct device *dev); + int (*init)(struct cyttsp4_core_platform_data *pdata, + int on, struct device *dev); + int (*power)(struct cyttsp4_core_platform_data *pdata, + int on, struct device *dev, atomic_t *ignore_irq); + int (*irq_stat)(struct cyttsp4_core_platform_data *pdata, + struct device *dev); + struct touch_settings *sett[CY_TOUCH_SETTINGS_MAX]; +}; + +struct cyttsp4_platform_data { + struct cyttsp4_core_platform_data *core_pdata; + struct cyttsp4_mt_platform_data *mt_pdata; +}; + +#endif /* _CYTTSP4_H_ */ diff --git a/include/linux/platform_data/dma-atmel.h b/include/linux/platform_data/dma-atmel.h index cab0997be3d..e95f19c6587 100644 --- a/include/linux/platform_data/dma-atmel.h +++ b/include/linux/platform_data/dma-atmel.h @@ -35,16 +35,20 @@ struct at_dma_slave { /* Platform-configurable bits in CFG */ +#define ATC_PER_MSB(h) ((0x30U & (h)) >> 4) /* Extract most significant bits of a handshaking identifier */ + #define ATC_SRC_PER(h) (0xFU & (h)) /* Channel src rq associated with periph handshaking ifc h */ #define ATC_DST_PER(h) ((0xFU & (h)) << 4) /* Channel dst rq associated with periph handshaking ifc h */ #define ATC_SRC_REP (0x1 << 8) /* Source Replay Mod */ #define ATC_SRC_H2SEL (0x1 << 9) /* Source Handshaking Mod */ #define ATC_SRC_H2SEL_SW (0x0 << 9) #define ATC_SRC_H2SEL_HW (0x1 << 9) +#define ATC_SRC_PER_MSB(h) (ATC_PER_MSB(h) << 10) /* Channel src rq (most significant bits) */ #define ATC_DST_REP (0x1 << 12) /* Destination Replay Mod */ #define ATC_DST_H2SEL (0x1 << 13) /* Destination Handshaking Mod */ #define ATC_DST_H2SEL_SW (0x0 << 13) #define ATC_DST_H2SEL_HW (0x1 << 13) +#define ATC_DST_PER_MSB(h) (ATC_PER_MSB(h) << 14) /* Channel dst rq (most significant bits) */ #define ATC_SOD (0x1 << 16) /* Stop On Done */ #define ATC_LOCK_IF (0x1 << 20) /* Interface Lock */ #define ATC_LOCK_B (0x1 << 21) /* AHB Bus Lock */ diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index f6d30cc1cb7..beac6b8b6a7 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -60,10 +60,8 @@ static inline int imx_dma_is_ipu(struct dma_chan *chan) static inline int imx_dma_is_general_purpose(struct dma_chan *chan) { - return strstr(dev_name(chan->device->dev), "sdma") || - !strcmp(dev_name(chan->device->dev), "imx1-dma") || - !strcmp(dev_name(chan->device->dev), "imx21-dma") || - !strcmp(dev_name(chan->device->dev), "imx27-dma"); + return !strcmp(chan->device->dev->driver->name, "imx-sdma") || + !strcmp(chan->device->dev->driver->name, "imx-dma"); } #endif diff --git a/include/linux/platform_data/dma-ste-dma40.h b/include/linux/platform_data/dma-ste-dma40.h index 4b781014b0a..1bb9b185225 100644 --- a/include/linux/platform_data/dma-ste-dma40.h +++ b/include/linux/platform_data/dma-ste-dma40.h @@ -70,23 +70,8 @@ enum stedma40_flow_ctrl { STEDMA40_FLOW_CTRL, }; -enum stedma40_periph_data_width { - STEDMA40_BYTE_WIDTH = STEDMA40_ESIZE_8_BIT, - STEDMA40_HALFWORD_WIDTH = STEDMA40_ESIZE_16_BIT, - STEDMA40_WORD_WIDTH = STEDMA40_ESIZE_32_BIT, - STEDMA40_DOUBLEWORD_WIDTH = STEDMA40_ESIZE_64_BIT -}; - -enum stedma40_xfer_dir { - STEDMA40_MEM_TO_MEM = 1, - STEDMA40_MEM_TO_PERIPH, - STEDMA40_PERIPH_TO_MEM, - STEDMA40_PERIPH_TO_PERIPH -}; - - /** - * struct stedma40_chan_cfg - dst/src channel configuration + * struct stedma40_half_channel_info - dst/src channel configuration * * @big_endian: true if the src/dst should be read as big endian * @data_width: Data width of the src/dst hardware @@ -95,7 +80,7 @@ enum stedma40_xfer_dir { */ struct stedma40_half_channel_info { bool big_endian; - enum stedma40_periph_data_width data_width; + enum dma_slave_buswidth data_width; int psize; enum stedma40_flow_ctrl flow_ctrl; }; @@ -109,8 +94,7 @@ struct stedma40_half_channel_info { * version 3+, i.e DB8500v2+ * @mode: channel mode: physical, logical, or operation * @mode_opt: options for the chosen channel mode - * @src_dev_type: Src device type - * @dst_dev_type: Dst device type + * @dev_type: src/dst device type (driver uses dir to figure out which) * @src_info: Parameters for dst half channel * @dst_info: Parameters for dst half channel * @use_fixed_channel: if true, use physical channel specified by phy_channel @@ -121,13 +105,12 @@ struct stedma40_half_channel_info { * */ struct stedma40_chan_cfg { - enum stedma40_xfer_dir dir; + enum dma_transfer_direction dir; bool high_priority; bool realtime; enum stedma40_mode mode; enum stedma40_mode_opt mode_opt; - int src_dev_type; - int dst_dev_type; + int dev_type; struct stedma40_half_channel_info src_info; struct stedma40_half_channel_info dst_info; @@ -138,13 +121,8 @@ struct stedma40_chan_cfg { /** * struct stedma40_platform_data - Configuration struct for the dma device. * - * @dev_len: length of dev_tx and dev_rx * @dev_tx: mapping between destination event line and io address * @dev_rx: mapping between source event line and io address - * @memcpy: list of memcpy event lines - * @memcpy_len: length of memcpy - * @memcpy_conf_phy: default configuration of physical channel memcpy - * @memcpy_conf_log: default configuration of logical channel memcpy * @disabled_channels: A vector, ending with -1, that marks physical channels * that are for different reasons not available for the driver. * @soft_lli_chans: A vector, that marks physical channels will use LLI by SW @@ -154,22 +132,17 @@ struct stedma40_chan_cfg { * @num_of_soft_lli_chans: The number of channels that needs to be configured * to use SoftLLI. * @use_esram_lcla: flag for mapping the lcla into esram region + * @num_of_memcpy_chans: The number of channels reserved for memcpy. * @num_of_phy_chans: The number of physical channels implemented in HW. * 0 means reading the number of channels from DMA HW but this is only valid * for 'multiple of 4' channels, like 8. */ struct stedma40_platform_data { - u32 dev_len; - const dma_addr_t *dev_tx; - const dma_addr_t *dev_rx; - int *memcpy; - u32 memcpy_len; - struct stedma40_chan_cfg *memcpy_conf_phy; - struct stedma40_chan_cfg *memcpy_conf_log; int disabled_channels[STEDMA40_MAX_PHYS]; int *soft_lli_chans; int num_of_soft_lli_chans; bool use_esram_lcla; + int num_of_memcpy_chans; int num_of_phy_chans; }; diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h new file mode 100644 index 00000000000..57300fd7cc0 --- /dev/null +++ b/include/linux/platform_data/edma.h @@ -0,0 +1,183 @@ +/* + * TI EDMA definitions + * + * Copyright (C) 2006-2013 Texas Instruments. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/* + * This EDMA3 programming framework exposes two basic kinds of resource: + * + * Channel Triggers transfers, usually from a hardware event but + * also manually or by "chaining" from DMA completions. + * Each channel is coupled to a Parameter RAM (PaRAM) slot. + * + * Slot Each PaRAM slot holds a DMA transfer descriptor (PaRAM + * "set"), source and destination addresses, a link to a + * next PaRAM slot (if any), options for the transfer, and + * instructions for updating those addresses. There are + * more than twice as many slots as event channels. + * + * Each PaRAM set describes a sequence of transfers, either for one large + * buffer or for several discontiguous smaller buffers. An EDMA transfer + * is driven only from a channel, which performs the transfers specified + * in its PaRAM slot until there are no more transfers. When that last + * transfer completes, the "link" field may be used to reload the channel's + * PaRAM slot with a new transfer descriptor. + * + * The EDMA Channel Controller (CC) maps requests from channels into physical + * Transfer Controller (TC) requests when the channel triggers (by hardware + * or software events, or by chaining). The two physical DMA channels provided + * by the TCs are thus shared by many logical channels. + * + * DaVinci hardware also has a "QDMA" mechanism which is not currently + * supported through this interface. (DSP firmware uses it though.) + */ + +#ifndef EDMA_H_ +#define EDMA_H_ + +/* PaRAM slots are laid out like this */ +struct edmacc_param { + unsigned int opt; + unsigned int src; + unsigned int a_b_cnt; + unsigned int dst; + unsigned int src_dst_bidx; + unsigned int link_bcntrld; + unsigned int src_dst_cidx; + unsigned int ccnt; +}; + +/* fields in edmacc_param.opt */ +#define SAM BIT(0) +#define DAM BIT(1) +#define SYNCDIM BIT(2) +#define STATIC BIT(3) +#define EDMA_FWID (0x07 << 8) +#define TCCMODE BIT(11) +#define EDMA_TCC(t) ((t) << 12) +#define TCINTEN BIT(20) +#define ITCINTEN BIT(21) +#define TCCHEN BIT(22) +#define ITCCHEN BIT(23) + +/*ch_status paramater of callback function possible values*/ +#define DMA_COMPLETE 1 +#define DMA_CC_ERROR 2 +#define DMA_TC1_ERROR 3 +#define DMA_TC2_ERROR 4 + +enum address_mode { + INCR = 0, + FIFO = 1 +}; + +enum fifo_width { + W8BIT = 0, + W16BIT = 1, + W32BIT = 2, + W64BIT = 3, + W128BIT = 4, + W256BIT = 5 +}; + +enum dma_event_q { + EVENTQ_0 = 0, + EVENTQ_1 = 1, + EVENTQ_2 = 2, + EVENTQ_3 = 3, + EVENTQ_DEFAULT = -1 +}; + +enum sync_dimension { + ASYNC = 0, + ABSYNC = 1 +}; + +#define EDMA_CTLR_CHAN(ctlr, chan) (((ctlr) << 16) | (chan)) +#define EDMA_CTLR(i) ((i) >> 16) +#define EDMA_CHAN_SLOT(i) ((i) & 0xffff) + +#define EDMA_CHANNEL_ANY -1 /* for edma_alloc_channel() */ +#define EDMA_SLOT_ANY -1 /* for edma_alloc_slot() */ +#define EDMA_CONT_PARAMS_ANY 1001 +#define EDMA_CONT_PARAMS_FIXED_EXACT 1002 +#define EDMA_CONT_PARAMS_FIXED_NOT_EXACT 1003 + +#define EDMA_MAX_CC 2 + +/* alloc/free DMA channels and their dedicated parameter RAM slots */ +int edma_alloc_channel(int channel, + void (*callback)(unsigned channel, u16 ch_status, void *data), + void *data, enum dma_event_q); +void edma_free_channel(unsigned channel); + +/* alloc/free parameter RAM slots */ +int edma_alloc_slot(unsigned ctlr, int slot); +void edma_free_slot(unsigned slot); + +/* alloc/free a set of contiguous parameter RAM slots */ +int edma_alloc_cont_slots(unsigned ctlr, unsigned int id, int slot, int count); +int edma_free_cont_slots(unsigned slot, int count); + +/* calls that operate on part of a parameter RAM slot */ +void edma_set_src(unsigned slot, dma_addr_t src_port, + enum address_mode mode, enum fifo_width); +void edma_set_dest(unsigned slot, dma_addr_t dest_port, + enum address_mode mode, enum fifo_width); +void edma_get_position(unsigned slot, dma_addr_t *src, dma_addr_t *dst); +void edma_set_src_index(unsigned slot, s16 src_bidx, s16 src_cidx); +void edma_set_dest_index(unsigned slot, s16 dest_bidx, s16 dest_cidx); +void edma_set_transfer_params(unsigned slot, u16 acnt, u16 bcnt, u16 ccnt, + u16 bcnt_rld, enum sync_dimension sync_mode); +void edma_link(unsigned from, unsigned to); +void edma_unlink(unsigned from); + +/* calls that operate on an entire parameter RAM slot */ +void edma_write_slot(unsigned slot, const struct edmacc_param *params); +void edma_read_slot(unsigned slot, struct edmacc_param *params); + +/* channel control operations */ +int edma_start(unsigned channel); +void edma_stop(unsigned channel); +void edma_clean_channel(unsigned channel); +void edma_clear_event(unsigned channel); +void edma_pause(unsigned channel); +void edma_resume(unsigned channel); + +struct edma_rsv_info { + + const s16 (*rsv_chans)[2]; + const s16 (*rsv_slots)[2]; +}; + +/* platform_data for EDMA driver */ +struct edma_soc_info { + + /* how many dma resources of each type */ + unsigned n_channel; + unsigned n_region; + unsigned n_slot; + unsigned n_tc; + unsigned n_cc; + /* + * Default queue is expected to be a low-priority queue. + * This way, long transfers on the default queue started + * by the codec engine will not cause audio defects. + */ + enum dma_event_q default_queue; + + /* Resource reservation for other cores */ + struct edma_rsv_info *rsv; + + s8 (*queue_tc_mapping)[2]; + s8 (*queue_priority_mapping)[2]; + const s16 (*xbar_chans)[2]; +}; + +#endif diff --git a/include/linux/clk/mvebu.h b/include/linux/platform_data/g762.h index 8c4ae713b06..d3c51283764 100644 --- a/include/linux/clk/mvebu.h +++ b/include/linux/platform_data/g762.h @@ -1,4 +1,8 @@ /* + * Platform data structure for g762 fan controller driver + * + * Copyright (C) 2013, Arnaud EBALARD <arno@natisbad.org> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -13,10 +17,21 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#ifndef __LINUX_PLATFORM_DATA_G762_H__ +#define __LINUX_PLATFORM_DATA_G762_H__ -#ifndef __CLK_MVEBU_H_ -#define __CLK_MVEBU_H_ +/* + * Following structure can be used to set g762 driver platform specific data + * during board init. Note that passing a sparse structure is possible but + * will result in non-specified attributes to be set to default value, hence + * overloading those installed during boot (e.g. by u-boot). + */ -void __init mvebu_clocks_init(void); +struct g762_platform_data { + u32 fan_startv; + u32 fan_gear_mode; + u32 pwm_polarity; + u32 clk_freq; +}; -#endif +#endif /* __LINUX_PLATFORM_DATA_G762_H__ */ diff --git a/include/linux/platform_data/gpio-rcar.h b/include/linux/platform_data/gpio-rcar.h index b253f77a7dd..2d8d6943281 100644 --- a/include/linux/platform_data/gpio-rcar.h +++ b/include/linux/platform_data/gpio-rcar.h @@ -17,10 +17,13 @@ #define __GPIO_RCAR_H__ struct gpio_rcar_config { - unsigned int gpio_base; + int gpio_base; unsigned int irq_base; unsigned int number_of_pins; const char *pctl_name; + unsigned has_both_edge_trigger:1; }; +#define RCAR_GP_PIN(bank, pin) (((bank) * 32) + (pin)) + #endif /* __GPIO_RCAR_H__ */ diff --git a/include/linux/platform_data/keypad-pxa27x.h b/include/linux/platform_data/keypad-pxa27x.h index 5ce8d5e6ea5..24625569d16 100644 --- a/include/linux/platform_data/keypad-pxa27x.h +++ b/include/linux/platform_data/keypad-pxa27x.h @@ -36,10 +36,9 @@ struct pxa27x_keypad_platform_data { /* code map for the matrix keys */ + const struct matrix_keymap_data *matrix_keymap_data; unsigned int matrix_key_rows; unsigned int matrix_key_cols; - unsigned int *matrix_key_map; - int matrix_key_map_size; /* direct keys */ int direct_key_num; diff --git a/include/linux/platform_data/mailbox-omap.h b/include/linux/platform_data/mailbox-omap.h new file mode 100644 index 00000000000..4631dbb4255 --- /dev/null +++ b/include/linux/platform_data/mailbox-omap.h @@ -0,0 +1,58 @@ +/* + * mailbox-omap.h + * + * Copyright (C) 2013 Texas Instruments, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _PLAT_MAILBOX_H +#define _PLAT_MAILBOX_H + +/* Interrupt register configuration types */ +#define MBOX_INTR_CFG_TYPE1 (0) +#define MBOX_INTR_CFG_TYPE2 (1) + +/** + * struct omap_mbox_dev_info - OMAP mailbox device attribute info + * @name: name of the mailbox device + * @tx_id: mailbox queue id used for transmitting messages + * @rx_id: mailbox queue id on which messages are received + * @irq_id: irq identifier number to use from the hwmod data + * @usr_id: mailbox user id for identifying the interrupt into + * the MPU interrupt controller. + */ +struct omap_mbox_dev_info { + const char *name; + u32 tx_id; + u32 rx_id; + u32 irq_id; + u32 usr_id; +}; + +/** + * struct omap_mbox_pdata - OMAP mailbox platform data + * @intr_type: type of interrupt configuration registers used + while programming mailbox queue interrupts + * @num_users: number of users (processor devices) that the mailbox + * h/w block can interrupt + * @num_fifos: number of h/w fifos within the mailbox h/w block + * @info_cnt: number of mailbox devices for the platform + * @info: array of mailbox device attributes + */ +struct omap_mbox_pdata { + u32 intr_type; + u32 num_users; + u32 num_fifos; + u32 info_cnt; + struct omap_mbox_dev_info *info; +}; + +#endif /* _PLAT_MAILBOX_H */ diff --git a/include/linux/platform_data/omap_ocp2scp.h b/include/linux/platform_data/omap_ocp2scp.h deleted file mode 100644 index 5c6c3939355..00000000000 --- a/include/linux/platform_data/omap_ocp2scp.h +++ /dev/null @@ -1,31 +0,0 @@ -/* - * omap_ocp2scp.h -- ocp2scp header file - * - * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * Author: Kishon Vijay Abraham I <kishon@ti.com> - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef __DRIVERS_OMAP_OCP2SCP_H -#define __DRIVERS_OMAP_OCP2SCP_H - -struct omap_ocp2scp_dev { - const char *drv_name; - struct resource *res; -}; - -struct omap_ocp2scp_platform_data { - int dev_cnt; - struct omap_ocp2scp_dev **devices; -}; -#endif /* __DRIVERS_OMAP_OCP2SCP_H */ diff --git a/include/linux/platform_data/pinctrl-coh901.h b/include/linux/platform_data/pinctrl-coh901.h deleted file mode 100644 index dfbc65d1048..00000000000 --- a/include/linux/platform_data/pinctrl-coh901.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2007-2012 ST-Ericsson AB - * License terms: GNU General Public License (GPL) version 2 - * GPIO block resgister definitions and inline macros for - * U300 GPIO COH 901 335 or COH 901 571/3 - * Author: Linus Walleij <linus.walleij@stericsson.com> - */ - -#ifndef __MACH_U300_GPIO_U300_H -#define __MACH_U300_GPIO_U300_H - -/** - * struct u300_gpio_platform - U300 GPIO platform data - * @ports: number of GPIO block ports - * @gpio_base: first GPIO number for this block (use a free range) - */ -struct u300_gpio_platform { - u8 ports; - int gpio_base; -}; - -#endif /* __MACH_U300_GPIO_U300_H */ diff --git a/include/linux/platform_data/serial-omap.h b/include/linux/platform_data/serial-omap.h index ff9b0aab528..c860c1b314c 100644 --- a/include/linux/platform_data/serial-omap.h +++ b/include/linux/platform_data/serial-omap.h @@ -43,8 +43,6 @@ struct omap_uart_port_info { int DTR_present; int (*get_context_loss_count)(struct device *); - void (*set_forceidle)(struct device *); - void (*set_noidle)(struct device *); void (*enable_wakeup)(struct device *, bool); }; diff --git a/include/linux/platform_data/si5351.h b/include/linux/platform_data/si5351.h index 92dabcaf649..54334393ab9 100644 --- a/include/linux/platform_data/si5351.h +++ b/include/linux/platform_data/si5351.h @@ -79,6 +79,23 @@ enum si5351_drive_strength { }; /** + * enum si5351_disable_state - Si5351 clock output disable state + * @SI5351_DISABLE_DEFAULT: default, do not change eeprom config + * @SI5351_DISABLE_LOW: CLKx is set to a LOW state when disabled + * @SI5351_DISABLE_HIGH: CLKx is set to a HIGH state when disabled + * @SI5351_DISABLE_FLOATING: CLKx is set to a FLOATING state when + * disabled + * @SI5351_DISABLE_NEVER: CLKx is NEVER disabled + */ +enum si5351_disable_state { + SI5351_DISABLE_DEFAULT = 0, + SI5351_DISABLE_LOW, + SI5351_DISABLE_HIGH, + SI5351_DISABLE_FLOATING, + SI5351_DISABLE_NEVER, +}; + +/** * struct si5351_clkout_config - Si5351 clock output configuration * @clkout: clkout number * @multisynth_src: multisynth source clock @@ -91,6 +108,7 @@ struct si5351_clkout_config { enum si5351_multisynth_src multisynth_src; enum si5351_clkout_src clkout_src; enum si5351_drive_strength drive; + enum si5351_disable_state disable_state; bool pll_master; unsigned long rate; }; diff --git a/include/linux/platform_data/spi-davinci.h b/include/linux/platform_data/spi-davinci.h index 7af305b3786..8dc2fa47a2a 100644 --- a/include/linux/platform_data/spi-davinci.h +++ b/include/linux/platform_data/spi-davinci.h @@ -19,7 +19,7 @@ #ifndef __ARCH_ARM_DAVINCI_SPI_H #define __ARCH_ARM_DAVINCI_SPI_H -#include <mach/edma.h> +#include <linux/platform_data/edma.h> #define SPI_INTERN_CS 0xFF diff --git a/include/linux/platform_data/ssm2518.h b/include/linux/platform_data/ssm2518.h new file mode 100644 index 00000000000..9a8e3ea287e --- /dev/null +++ b/include/linux/platform_data/ssm2518.h @@ -0,0 +1,22 @@ +/* + * SSM2518 amplifier audio driver + * + * Copyright 2013 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2. + */ + +#ifndef __LINUX_PLATFORM_DATA_SSM2518_H__ +#define __LINUX_PLATFORM_DATA_SSM2518_H__ + +/** + * struct ssm2518_platform_data - Platform data for the ssm2518 driver + * @enable_gpio: GPIO connected to the nSD pin. Set to -1 if the nSD pin is + * hardwired. + */ +struct ssm2518_platform_data { + int enable_gpio; +}; + +#endif diff --git a/include/linux/platform_data/usb-musb-ux500.h b/include/linux/platform_data/usb-musb-ux500.h index 4c1cc50a595..dd9c83ac7de 100644 --- a/include/linux/platform_data/usb-musb-ux500.h +++ b/include/linux/platform_data/usb-musb-ux500.h @@ -9,14 +9,11 @@ #include <linux/dmaengine.h> -#define UX500_MUSB_DMA_NUM_RX_CHANNELS 8 -#define UX500_MUSB_DMA_NUM_TX_CHANNELS 8 +#define UX500_MUSB_DMA_NUM_RX_TX_CHANNELS 8 struct ux500_musb_board_data { void **dma_rx_param_array; void **dma_tx_param_array; - u32 num_rx_channels; - u32 num_tx_channels; bool (*dma_filter)(struct dma_chan *chan, void *filter_param); }; diff --git a/include/linux/platform_data/usb-rcar-phy.h b/include/linux/platform_data/usb-rcar-phy.h new file mode 100644 index 00000000000..8ec6964a32a --- /dev/null +++ b/include/linux/platform_data/usb-rcar-phy.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Cogent Embedded, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __USB_RCAR_PHY_H +#define __USB_RCAR_PHY_H + +#include <linux/types.h> + +struct rcar_phy_platform_data { + bool ferrite_bead:1; /* (R8A7778 only) */ + + bool port1_func:1; /* true: port 1 used by function, false: host */ + unsigned penc1:1; /* Output of the PENC1 pin in function mode */ + struct { /* Overcurrent pin control for ports 0..2 */ + bool select_3_3v:1; /* true: USB_OVCn pin, false: OVCn pin */ + /* Set to false on port 1 in function mode */ + bool active_high:1; /* true: active high, false: active low */ + /* Set to true on port 1 in function mode */ + } ovc_pin[3]; /* (R8A7778 only has 2 ports) */ +}; + +#endif /* __USB_RCAR_PHY_H */ diff --git a/include/linux/platform_data/usb3503.h b/include/linux/platform_data/usb3503.h index 85dcc709f7e..1d1b6ef871f 100644 --- a/include/linux/platform_data/usb3503.h +++ b/include/linux/platform_data/usb3503.h @@ -3,6 +3,10 @@ #define USB3503_I2C_NAME "usb3503" +#define USB3503_OFF_PORT1 (1 << 1) +#define USB3503_OFF_PORT2 (1 << 2) +#define USB3503_OFF_PORT3 (1 << 3) + enum usb3503_mode { USB3503_MODE_UNKNOWN, USB3503_MODE_HUB, @@ -11,6 +15,7 @@ enum usb3503_mode { struct usb3503_platform_data { enum usb3503_mode initial_mode; + u8 port_off_mask; int gpio_intn; int gpio_connect; int gpio_reset; diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 9abf1db6aea..ce8e4ffd78c 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -180,7 +180,16 @@ struct platform_driver { const struct platform_device_id *id_table; }; -extern int platform_driver_register(struct platform_driver *); +#define to_platform_driver(drv) (container_of((drv), struct platform_driver, \ + driver)) + +/* + * use a macro to avoid include chaining to get THIS_MODULE + */ +#define platform_driver_register(drv) \ + __platform_driver_register(drv, THIS_MODULE) +extern int __platform_driver_register(struct platform_driver *, + struct module *); extern void platform_driver_unregister(struct platform_driver *); /* non-hotpluggable platform devices may use this so that probe() and diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 7d7e09efff9..6fa7cea25da 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -37,7 +37,6 @@ extern void pm_runtime_enable(struct device *dev); extern void __pm_runtime_disable(struct device *dev, bool check_resume); extern void pm_runtime_allow(struct device *dev); extern void pm_runtime_forbid(struct device *dev); -extern int pm_generic_runtime_idle(struct device *dev); extern int pm_generic_runtime_suspend(struct device *dev); extern int pm_generic_runtime_resume(struct device *dev); extern void pm_runtime_no_callbacks(struct device *dev); @@ -143,7 +142,6 @@ static inline bool pm_runtime_active(struct device *dev) { return true; } static inline bool pm_runtime_status_suspended(struct device *dev) { return false; } static inline bool pm_runtime_enabled(struct device *dev) { return false; } -static inline int pm_generic_runtime_idle(struct device *dev) { return 0; } static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; } static inline int pm_generic_runtime_resume(struct device *dev) { return 0; } static inline void pm_runtime_no_callbacks(struct device *dev) {} diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index 7794d75ed15..907f3fd191a 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -7,14 +7,20 @@ #include <linux/timex.h> #include <linux/alarmtimer.h> -union cpu_time_count { - cputime_t cpu; - unsigned long long sched; -}; + +static inline unsigned long long cputime_to_expires(cputime_t expires) +{ + return (__force unsigned long long)expires; +} + +static inline cputime_t expires_to_cputime(unsigned long long expires) +{ + return (__force cputime_t)expires; +} struct cpu_timer_list { struct list_head entry; - union cpu_time_count expires, incr; + unsigned long long expires, incr; struct task_struct *task; int firing; }; diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h index c0f44c2b006..d8b187c3925 100644 --- a/include/linux/power/smartreflex.h +++ b/include/linux/power/smartreflex.h @@ -299,11 +299,11 @@ void omap_sr_disable_reset_volt(struct voltagedomain *voltdm); void omap_sr_register_pmic(struct omap_sr_pmic_data *pmic_data); /* Smartreflex driver hooks to be called from Smartreflex class driver */ -int sr_enable(struct voltagedomain *voltdm, unsigned long volt); -void sr_disable(struct voltagedomain *voltdm); -int sr_configure_errgen(struct voltagedomain *voltdm); -int sr_disable_errgen(struct voltagedomain *voltdm); -int sr_configure_minmax(struct voltagedomain *voltdm); +int sr_enable(struct omap_sr *sr, unsigned long volt); +void sr_disable(struct omap_sr *sr); +int sr_configure_errgen(struct omap_sr *sr); +int sr_disable_errgen(struct omap_sr *sr); +int sr_configure_minmax(struct omap_sr *sr); /* API to register the smartreflex class driver with the smartreflex driver */ int sr_register_class(struct omap_sr_class_data *class_data); diff --git a/include/linux/preempt.h b/include/linux/preempt.h index 87a03c746f1..f5d4723cdb3 100644 --- a/include/linux/preempt.h +++ b/include/linux/preempt.h @@ -33,9 +33,25 @@ do { \ preempt_schedule(); \ } while (0) +#ifdef CONFIG_CONTEXT_TRACKING + +void preempt_schedule_context(void); + +#define preempt_check_resched_context() \ +do { \ + if (unlikely(test_thread_flag(TIF_NEED_RESCHED))) \ + preempt_schedule_context(); \ +} while (0) +#else + +#define preempt_check_resched_context() preempt_check_resched() + +#endif /* CONFIG_CONTEXT_TRACKING */ + #else /* !CONFIG_PREEMPT */ #define preempt_check_resched() do { } while (0) +#define preempt_check_resched_context() do { } while (0) #endif /* CONFIG_PREEMPT */ @@ -88,7 +104,7 @@ do { \ do { \ preempt_enable_no_resched_notrace(); \ barrier(); \ - preempt_check_resched(); \ + preempt_check_resched_context(); \ } while (0) #else /* !CONFIG_PREEMPT_COUNT */ diff --git a/include/linux/printk.h b/include/linux/printk.h index 6af944ab38f..22c7052e937 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -4,6 +4,7 @@ #include <stdarg.h> #include <linux/init.h> #include <linux/kern_levels.h> +#include <linux/linkage.h> extern const char linux_banner[]; extern const char linux_proc_banner[]; diff --git a/include/linux/pstore.h b/include/linux/pstore.h index 75d01760c91..4aa80ba830a 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -35,6 +35,10 @@ enum pstore_type_id { PSTORE_TYPE_MCE = 1, PSTORE_TYPE_CONSOLE = 2, PSTORE_TYPE_FTRACE = 3, + /* PPC64 partition types */ + PSTORE_TYPE_PPC_RTAS = 4, + PSTORE_TYPE_PPC_OF = 5, + PSTORE_TYPE_PPC_COMMON = 6, PSTORE_TYPE_UNKNOWN = 255 }; @@ -54,12 +58,12 @@ struct pstore_info { struct pstore_info *psi); int (*write)(enum pstore_type_id type, enum kmsg_dump_reason reason, u64 *id, - unsigned int part, int count, size_t size, - struct pstore_info *psi); + unsigned int part, int count, size_t hsize, + size_t size, struct pstore_info *psi); int (*write_buf)(enum pstore_type_id type, enum kmsg_dump_reason reason, u64 *id, - unsigned int part, const char *buf, size_t size, - struct pstore_info *psi); + unsigned int part, const char *buf, size_t hsize, + size_t size, struct pstore_info *psi); int (*erase)(enum pstore_type_id type, u64 id, int count, struct timespec time, struct pstore_info *psi); diff --git a/include/linux/pvclock_gtod.h b/include/linux/pvclock_gtod.h index 0ca75825b60..a71d2dbd361 100644 --- a/include/linux/pvclock_gtod.h +++ b/include/linux/pvclock_gtod.h @@ -3,6 +3,13 @@ #include <linux/notifier.h> +/* + * The pvclock gtod notifier is called when the system time is updated + * and is used to keep guest time synchronized with host time. + * + * The 'action' parameter in the notifier function is false (0), or + * true (non-zero) if system time was stepped. + */ extern int pvclock_gtod_register_notifier(struct notifier_block *nb); extern int pvclock_gtod_unregister_notifier(struct notifier_block *nb); diff --git a/include/linux/rculist.h b/include/linux/rculist.h index 8089e35d47a..f4b1001a467 100644 --- a/include/linux/rculist.h +++ b/include/linux/rculist.h @@ -461,6 +461,26 @@ static inline void hlist_add_after_rcu(struct hlist_node *prev, &(pos)->member)), typeof(*(pos)), member)) /** + * hlist_for_each_entry_rcu_notrace - iterate over rcu list of given type (for tracing) + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the hlist_node within the struct. + * + * This list-traversal primitive may safely run concurrently with + * the _rcu list-mutation primitives such as hlist_add_head_rcu() + * as long as the traversal is guarded by rcu_read_lock(). + * + * This is the same as hlist_for_each_entry_rcu() except that it does + * not do any RCU debugging or tracing. + */ +#define hlist_for_each_entry_rcu_notrace(pos, head, member) \ + for (pos = hlist_entry_safe (rcu_dereference_raw_notrace(hlist_first_rcu(head)),\ + typeof(*(pos)), member); \ + pos; \ + pos = hlist_entry_safe(rcu_dereference_raw_notrace(hlist_next_rcu(\ + &(pos)->member)), typeof(*(pos)), member)) + +/** * hlist_for_each_entry_rcu_bh - iterate over rcu list of given type * @pos: the type * to use as a loop cursor. * @head: the head for your list. diff --git a/include/linux/rculist_nulls.h b/include/linux/rculist_nulls.h index 2ae13714828..1c33dd7da4a 100644 --- a/include/linux/rculist_nulls.h +++ b/include/linux/rculist_nulls.h @@ -105,9 +105,14 @@ static inline void hlist_nulls_add_head_rcu(struct hlist_nulls_node *n, * @head: the head for your list. * @member: the name of the hlist_nulls_node within the struct. * + * The barrier() is needed to make sure compiler doesn't cache first element [1], + * as this loop can be restarted [2] + * [1] Documentation/atomic_ops.txt around line 114 + * [2] Documentation/RCU/rculist_nulls.txt around line 146 */ #define hlist_nulls_for_each_entry_rcu(tpos, pos, head, member) \ - for (pos = rcu_dereference_raw(hlist_nulls_first_rcu(head)); \ + for (({barrier();}), \ + pos = rcu_dereference_raw(hlist_nulls_first_rcu(head)); \ (!is_a_nulls(pos)) && \ ({ tpos = hlist_nulls_entry(pos, typeof(*tpos), member); 1; }); \ pos = rcu_dereference_raw(hlist_nulls_next_rcu(pos))) diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 4ccd68e49b0..4b14bdc911d 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -216,6 +216,7 @@ static inline int rcu_preempt_depth(void) #endif /* #else #ifdef CONFIG_PREEMPT_RCU */ /* Internal to kernel */ +extern void rcu_init(void); extern void rcu_sched_qs(int cpu); extern void rcu_bh_qs(int cpu); extern void rcu_check_callbacks(int cpu, int user); @@ -239,8 +240,6 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev, struct task_struct *next) { } #endif /* CONFIG_RCU_USER_QS */ -extern void exit_rcu(void); - /** * RCU_NONIDLE - Indicate idle-loop code that needs RCU readers * @a: Code that RCU needs to pay attention to. @@ -277,7 +276,7 @@ void wait_rcu_gp(call_rcu_func_t crf); #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) #include <linux/rcutree.h> -#elif defined(CONFIG_TINY_RCU) || defined(CONFIG_TINY_PREEMPT_RCU) +#elif defined(CONFIG_TINY_RCU) #include <linux/rcutiny.h> #else #error "Unknown RCU implementation specified to kernel configuration" @@ -640,6 +639,15 @@ static inline void rcu_preempt_sleep_check(void) #define rcu_dereference_raw(p) rcu_dereference_check(p, 1) /*@@@ needed? @@@*/ +/* + * The tracing infrastructure traces RCU (we want that), but unfortunately + * some of the RCU checks causes tracing to lock up the system. + * + * The tracing version of rcu_dereference_raw() must not call + * rcu_read_lock_held(). + */ +#define rcu_dereference_raw_notrace(p) __rcu_dereference_check((p), 1, __rcu) + /** * rcu_access_index() - fetch RCU index with no dereferencing * @p: The index to read diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h index 4e56a9c69a3..e31005ee339 100644 --- a/include/linux/rcutiny.h +++ b/include/linux/rcutiny.h @@ -27,10 +27,6 @@ #include <linux/cache.h> -static inline void rcu_init(void) -{ -} - static inline void rcu_barrier_bh(void) { wait_rcu_gp(call_rcu_bh); @@ -41,8 +37,6 @@ static inline void rcu_barrier_sched(void) wait_rcu_gp(call_rcu_sched); } -#ifdef CONFIG_TINY_RCU - static inline void synchronize_rcu_expedited(void) { synchronize_sched(); /* Only one CPU, so pretty fast anyway!!! */ @@ -53,17 +47,6 @@ static inline void rcu_barrier(void) rcu_barrier_sched(); /* Only one CPU, so only one list of callbacks! */ } -#else /* #ifdef CONFIG_TINY_RCU */ - -void synchronize_rcu_expedited(void); - -static inline void rcu_barrier(void) -{ - wait_rcu_gp(call_rcu); -} - -#endif /* #else #ifdef CONFIG_TINY_RCU */ - static inline void synchronize_rcu_bh(void) { synchronize_sched(); @@ -85,35 +68,15 @@ static inline void kfree_call_rcu(struct rcu_head *head, call_rcu(head, func); } -#ifdef CONFIG_TINY_RCU - -static inline void rcu_preempt_note_context_switch(void) -{ -} - static inline int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies) { *delta_jiffies = ULONG_MAX; return 0; } -#else /* #ifdef CONFIG_TINY_RCU */ - -void rcu_preempt_note_context_switch(void); -int rcu_preempt_needs_cpu(void); - -static inline int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies) -{ - *delta_jiffies = ULONG_MAX; - return rcu_preempt_needs_cpu(); -} - -#endif /* #else #ifdef CONFIG_TINY_RCU */ - static inline void rcu_note_context_switch(int cpu) { rcu_sched_qs(cpu); - rcu_preempt_note_context_switch(); } /* @@ -156,6 +119,10 @@ static inline void rcu_cpu_stall_reset(void) { } +static inline void exit_rcu(void) +{ +} + #ifdef CONFIG_DEBUG_LOCK_ALLOC extern int rcu_scheduler_active __read_mostly; extern void rcu_scheduler_starting(void); diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index 952b7933930..226169d1bd2 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h @@ -30,7 +30,6 @@ #ifndef __LINUX_RCUTREE_H #define __LINUX_RCUTREE_H -extern void rcu_init(void); extern void rcu_note_context_switch(int cpu); extern int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies); extern void rcu_cpu_stall_reset(void); @@ -86,6 +85,8 @@ extern void rcu_force_quiescent_state(void); extern void rcu_bh_force_quiescent_state(void); extern void rcu_sched_force_quiescent_state(void); +extern void exit_rcu(void); + extern void rcu_scheduler_starting(void); extern int rcu_scheduler_active __read_mostly; diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 02d84e24b7c..75981d0b57d 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -23,6 +23,7 @@ struct irq_domain; struct spi_device; struct regmap; struct regmap_range_cfg; +struct regmap_field; /* An enum of all the supported cache types */ enum regcache_type { @@ -394,10 +395,15 @@ bool regmap_can_raw_write(struct regmap *map); int regcache_sync(struct regmap *map); int regcache_sync_region(struct regmap *map, unsigned int min, unsigned int max); +int regcache_drop_region(struct regmap *map, unsigned int min, + unsigned int max); void regcache_cache_only(struct regmap *map, bool enable); void regcache_cache_bypass(struct regmap *map, bool enable); void regcache_mark_dirty(struct regmap *map); +bool regmap_check_range_table(struct regmap *map, unsigned int reg, + const struct regmap_access_table *table); + int regmap_register_patch(struct regmap *map, const struct reg_default *regs, int num_regs); @@ -412,6 +418,36 @@ bool regmap_reg_in_ranges(unsigned int reg, unsigned int nranges); /** + * Description of an register field + * + * @reg: Offset of the register within the regmap bank + * @lsb: lsb of the register field. + * @reg: msb of the register field. + */ +struct reg_field { + unsigned int reg; + unsigned int lsb; + unsigned int msb; +}; + +#define REG_FIELD(_reg, _lsb, _msb) { \ + .reg = _reg, \ + .lsb = _lsb, \ + .msb = _msb, \ + } + +struct regmap_field *regmap_field_alloc(struct regmap *regmap, + struct reg_field reg_field); +void regmap_field_free(struct regmap_field *field); + +struct regmap_field *devm_regmap_field_alloc(struct device *dev, + struct regmap *regmap, struct reg_field reg_field); +void devm_regmap_field_free(struct device *dev, struct regmap_field *field); + +int regmap_field_read(struct regmap_field *field, unsigned int *val); +int regmap_field_write(struct regmap_field *field, unsigned int val); + +/** * Description of an IRQ for the generic regmap irq_chip. * * @reg_offset: Offset of the status/mask register within the bank @@ -562,6 +598,13 @@ static inline int regcache_sync_region(struct regmap *map, unsigned int min, return -EINVAL; } +static inline int regcache_drop_region(struct regmap *map, unsigned int min, + unsigned int max) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + static inline void regcache_cache_only(struct regmap *map, bool enable) { WARN_ONCE(1, "regmap API is disabled"); diff --git a/include/linux/regulator/ab8500.h b/include/linux/regulator/ab8500.h index 7c5ff0c5577..75307447cef 100644 --- a/include/linux/regulator/ab8500.h +++ b/include/linux/regulator/ab8500.h @@ -336,8 +336,4 @@ static inline int ab8500_regulator_debug_exit(struct platform_device *pdev) } #endif -/* AB8500 external regulator functions. */ -int ab8500_ext_regulator_init(struct platform_device *pdev); -void ab8500_ext_regulator_exit(struct platform_device *pdev); - #endif diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 145022a8308..3a76389c6aa 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -165,6 +165,7 @@ int regulator_count_voltages(struct regulator *regulator); int regulator_list_voltage(struct regulator *regulator, unsigned selector); int regulator_is_supported_voltage(struct regulator *regulator, int min_uV, int max_uV); +unsigned int regulator_get_linear_step(struct regulator *regulator); int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV); int regulator_set_voltage_time(struct regulator *regulator, int old_uV, int new_uV); diff --git a/include/linux/rio.h b/include/linux/rio.h index a3e78427866..b71d5738e68 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -20,6 +20,7 @@ #include <linux/errno.h> #include <linux/device.h> #include <linux/rio_regs.h> +#include <linux/mod_devicetable.h> #ifdef CONFIG_RAPIDIO_DMA_ENGINE #include <linux/dmaengine.h> #endif @@ -83,7 +84,6 @@ extern struct bus_type rio_bus_type; extern struct device rio_bus; -extern struct list_head rio_devices; /* list of all devices */ struct rio_mport; struct rio_dev; @@ -92,9 +92,24 @@ union rio_pw_msg; /** * struct rio_switch - RIO switch info * @node: Node in global list of switches - * @switchid: Switch ID that is unique across a network * @route_table: Copy of switch routing table * @port_ok: Status of each port (one bit per port) - OK=1 or UNINIT=0 + * @ops: pointer to switch-specific operations + * @lock: lock to serialize operations updates + * @nextdev: Array of per-port pointers to the next attached device + */ +struct rio_switch { + struct list_head node; + u8 *route_table; + u32 port_ok; + struct rio_switch_ops *ops; + spinlock_t lock; + struct rio_dev *nextdev[0]; +}; + +/** + * struct rio_switch_ops - Per-switch operations + * @owner: The module owner of this structure * @add_entry: Callback for switch-specific route add function * @get_entry: Callback for switch-specific route get function * @clr_table: Callback for switch-specific clear route table function @@ -102,14 +117,12 @@ union rio_pw_msg; * @get_domain: Callback for switch-specific domain get function * @em_init: Callback for switch-specific error management init function * @em_handle: Callback for switch-specific error management handler function - * @sw_sysfs: Callback that initializes switch-specific sysfs attributes - * @nextdev: Array of per-port pointers to the next attached device + * + * Defines the operations that are necessary to initialize/control + * a particular RIO switch device. */ -struct rio_switch { - struct list_head node; - u16 switchid; - u8 *route_table; - u32 port_ok; +struct rio_switch_ops { + struct module *owner; int (*add_entry) (struct rio_mport *mport, u16 destid, u8 hopcount, u16 table, u16 route_destid, u8 route_port); int (*get_entry) (struct rio_mport *mport, u16 destid, u8 hopcount, @@ -122,8 +135,6 @@ struct rio_switch { u8 *sw_domain); int (*em_init) (struct rio_dev *dev); int (*em_handle) (struct rio_dev *dev, u8 swport); - int (*sw_sysfs) (struct rio_dev *dev, int create); - struct rio_dev *nextdev[0]; }; /** @@ -131,6 +142,7 @@ struct rio_switch { * @global_list: Node in list of all RIO devices * @net_list: Node in list of RIO devices in a network * @net: Network this device is a part of + * @do_enum: Enumeration flag * @did: Device ID * @vid: Vendor ID * @device_rev: Device revision @@ -159,6 +171,7 @@ struct rio_dev { struct list_head global_list; /* node in list of all RIO devices */ struct list_head net_list; /* node in per net list */ struct rio_net *net; /* RIO net this device resides in */ + bool do_enum; u16 did; u16 vid; u32 device_rev; @@ -237,6 +250,7 @@ enum rio_phy_type { * @name: Port name string * @priv: Master port private data * @dma: DMA device associated with mport + * @nscan: RapidIO network enumeration/discovery operations */ struct rio_mport { struct list_head dbells; /* list of doorbell events */ @@ -262,8 +276,14 @@ struct rio_mport { #ifdef CONFIG_RAPIDIO_DMA_ENGINE struct dma_device dma; #endif + struct rio_scan *nscan; }; +/* + * Enumeration/discovery control flags + */ +#define RIO_SCAN_ENUM_NO_WAIT 0x00000001 /* Do not wait for enum completed */ + struct rio_id_table { u16 start; /* logical minimal id */ u32 max; /* max number of IDs in table */ @@ -291,10 +311,6 @@ struct rio_net { struct rio_id_table destid_table; /* destID allocation table */ }; -/* Definitions used by switch sysfs initialization callback */ -#define RIO_SW_SYSFS_CREATE 1 /* Create switch attributes */ -#define RIO_SW_SYSFS_REMOVE 0 /* Remove switch attributes */ - /* Low-level architecture-dependent routines */ /** @@ -379,35 +395,6 @@ struct rio_driver { #define to_rio_driver(drv) container_of(drv,struct rio_driver, driver) -/** - * struct rio_device_id - RIO device identifier - * @did: RIO device ID - * @vid: RIO vendor ID - * @asm_did: RIO assembly device ID - * @asm_vid: RIO assembly vendor ID - * - * Identifies a RIO device based on both the device/vendor IDs and - * the assembly device/vendor IDs. - */ -struct rio_device_id { - u16 did, vid; - u16 asm_did, asm_vid; -}; - -/** - * struct rio_switch_ops - Per-switch operations - * @vid: RIO vendor ID - * @did: RIO device ID - * @init_hook: Callback that performs switch device initialization - * - * Defines the operations that are necessary to initialize/control - * a particular RIO switch device. - */ -struct rio_switch_ops { - u16 vid, did; - int (*init_hook) (struct rio_dev *rdev, int do_enum); -}; - union rio_pw_msg { struct { u32 comptag; /* Component Tag CSR */ @@ -460,6 +447,31 @@ static inline struct rio_mport *dma_to_mport(struct dma_device *ddev) } #endif /* CONFIG_RAPIDIO_DMA_ENGINE */ +/** + * struct rio_scan - RIO enumeration and discovery operations + * @owner: The module owner of this structure + * @enumerate: Callback to perform RapidIO fabric enumeration. + * @discover: Callback to perform RapidIO fabric discovery. + */ +struct rio_scan { + struct module *owner; + int (*enumerate)(struct rio_mport *mport, u32 flags); + int (*discover)(struct rio_mport *mport, u32 flags); +}; + +/** + * struct rio_scan_node - list node to register RapidIO enumeration and + * discovery methods with RapidIO core. + * @mport_id: ID of an mport (net) serviced by this enumerator + * @node: node in global list of registered enumerators + * @ops: RIO enumeration and discovery operations + */ +struct rio_scan_node { + int mport_id; + struct list_head node; + struct rio_scan *ops; +}; + /* Architecture and hardware-specific functions */ extern int rio_register_mport(struct rio_mport *); extern int rio_open_inb_mbox(struct rio_mport *, void *, int, int); diff --git a/include/linux/rio_drv.h b/include/linux/rio_drv.h index b75c05920ab..5059994fe29 100644 --- a/include/linux/rio_drv.h +++ b/include/linux/rio_drv.h @@ -433,5 +433,6 @@ extern u16 rio_local_get_device_id(struct rio_mport *port); extern struct rio_dev *rio_get_device(u16 vid, u16 did, struct rio_dev *from); extern struct rio_dev *rio_get_asm(u16 vid, u16 did, u16 asm_vid, u16 asm_did, struct rio_dev *from); +extern int rio_init_mports(void); #endif /* LINUX_RIO_DRV_H */ diff --git a/include/linux/rio_ids.h b/include/linux/rio_ids.h index b66d13d1bdc..2543bc163d5 100644 --- a/include/linux/rio_ids.h +++ b/include/linux/rio_ids.h @@ -13,8 +13,6 @@ #ifndef LINUX_RIO_IDS_H #define LINUX_RIO_IDS_H -#define RIO_ANY_ID 0xffff - #define RIO_VID_FREESCALE 0x0002 #define RIO_DID_MPC8560 0x0003 diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index 5951e3f3887..26806775b11 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -111,6 +111,9 @@ static inline struct page *sg_page(struct scatterlist *sg) static inline void sg_set_buf(struct scatterlist *sg, const void *buf, unsigned int buflen) { +#ifdef CONFIG_DEBUG_SG + BUG_ON(!virt_addr_valid(buf)); +#endif sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf)); } diff --git a/include/linux/sched.h b/include/linux/sched.h index 178a8d909f1..cdd5407b37e 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -924,7 +924,7 @@ struct load_weight { struct sched_avg { /* * These sums represent an infinite geometric series and so are bound - * above by 1024/(1-y). Thus we only need a u32 to store them for for all + * above by 1024/(1-y). Thus we only need a u32 to store them for all * choices of y < 1-2^(-32)*1024. */ u32 runnable_avg_sum, runnable_avg_period; @@ -994,12 +994,7 @@ struct sched_entity { struct cfs_rq *my_q; #endif -/* - * Load-tracking only depends on SMP, FAIR_GROUP_SCHED dependency below may be - * removed when useful for applications beyond shares distribution (e.g. - * load-balance). - */ -#if defined(CONFIG_SMP) && defined(CONFIG_FAIR_GROUP_SCHED) +#ifdef CONFIG_SMP /* Per-entity load-tracking */ struct sched_avg avg; #endif @@ -1955,8 +1950,6 @@ extern struct task_struct *find_task_by_vpid(pid_t nr); extern struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns); -extern void __set_special_pids(struct pid *pid); - /* per-UID process charging. */ extern struct user_struct * alloc_uid(kuid_t); static inline struct user_struct *get_uid(struct user_struct *u) diff --git a/include/linux/sched_clock.h b/include/linux/sched_clock.h new file mode 100644 index 00000000000..fa7922c80a4 --- /dev/null +++ b/include/linux/sched_clock.h @@ -0,0 +1,21 @@ +/* + * sched_clock.h: support for extending counters to full 64-bit ns counter + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef LINUX_SCHED_CLOCK +#define LINUX_SCHED_CLOCK + +#ifdef CONFIG_GENERIC_SCHED_CLOCK +extern void sched_clock_postinit(void); +#else +static inline void sched_clock_postinit(void) { } +#endif + +extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate); + +extern unsigned long long (*sched_clock_func)(void); + +#endif diff --git a/include/linux/sdb.h b/include/linux/sdb.h new file mode 100644 index 00000000000..fbb76a46c8a --- /dev/null +++ b/include/linux/sdb.h @@ -0,0 +1,159 @@ +/* + * This is the official version 1.1 of sdb.h + */ +#ifndef __SDB_H__ +#define __SDB_H__ +#ifdef __KERNEL__ +#include <linux/types.h> +#else +#include <stdint.h> +#endif + +/* + * All structures are 64 bytes long and are expected + * to live in an array, one for each interconnect. + * Most fields of the structures are shared among the + * various types, and most-specific fields are at the + * beginning (for alignment reasons, and to keep the + * magic number at the head of the interconnect record + */ + +/* Product, 40 bytes at offset 24, 8-byte aligned + * + * device_id is vendor-assigned; version is device-specific, + * date is hex (e.g 0x20120501), name is UTF-8, blank-filled + * and not terminated with a 0 byte. + */ +struct sdb_product { + uint64_t vendor_id; /* 0x18..0x1f */ + uint32_t device_id; /* 0x20..0x23 */ + uint32_t version; /* 0x24..0x27 */ + uint32_t date; /* 0x28..0x2b */ + uint8_t name[19]; /* 0x2c..0x3e */ + uint8_t record_type; /* 0x3f */ +}; + +/* + * Component, 56 bytes at offset 8, 8-byte aligned + * + * The address range is first to last, inclusive + * (for example 0x100000 - 0x10ffff) + */ +struct sdb_component { + uint64_t addr_first; /* 0x08..0x0f */ + uint64_t addr_last; /* 0x10..0x17 */ + struct sdb_product product; /* 0x18..0x3f */ +}; + +/* Type of the SDB record */ +enum sdb_record_type { + sdb_type_interconnect = 0x00, + sdb_type_device = 0x01, + sdb_type_bridge = 0x02, + sdb_type_integration = 0x80, + sdb_type_repo_url = 0x81, + sdb_type_synthesis = 0x82, + sdb_type_empty = 0xFF, +}; + +/* Type 0: interconnect (first of the array) + * + * sdb_records is the length of the table including this first + * record, version is 1. The bus type is enumerated later. + */ +#define SDB_MAGIC 0x5344422d /* "SDB-" */ +struct sdb_interconnect { + uint32_t sdb_magic; /* 0x00-0x03 */ + uint16_t sdb_records; /* 0x04-0x05 */ + uint8_t sdb_version; /* 0x06 */ + uint8_t sdb_bus_type; /* 0x07 */ + struct sdb_component sdb_component; /* 0x08-0x3f */ +}; + +/* Type 1: device + * + * class is 0 for "custom device", other values are + * to be standardized; ABI version is for the driver, + * bus-specific bits are defined by each bus (see below) + */ +struct sdb_device { + uint16_t abi_class; /* 0x00-0x01 */ + uint8_t abi_ver_major; /* 0x02 */ + uint8_t abi_ver_minor; /* 0x03 */ + uint32_t bus_specific; /* 0x04-0x07 */ + struct sdb_component sdb_component; /* 0x08-0x3f */ +}; + +/* Type 2: bridge + * + * child is the address of the nested SDB table + */ +struct sdb_bridge { + uint64_t sdb_child; /* 0x00-0x07 */ + struct sdb_component sdb_component; /* 0x08-0x3f */ +}; + +/* Type 0x80: integration + * + * all types with bit 7 set are meta-information, so + * software can ignore the types it doesn't know. Here we + * just provide product information for an aggregate device + */ +struct sdb_integration { + uint8_t reserved[24]; /* 0x00-0x17 */ + struct sdb_product product; /* 0x08-0x3f */ +}; + +/* Type 0x81: Top module repository url + * + * again, an informative field that software can ignore + */ +struct sdb_repo_url { + uint8_t repo_url[63]; /* 0x00-0x3e */ + uint8_t record_type; /* 0x3f */ +}; + +/* Type 0x82: Synthesis tool information + * + * this informative record + */ +struct sdb_synthesis { + uint8_t syn_name[16]; /* 0x00-0x0f */ + uint8_t commit_id[16]; /* 0x10-0x1f */ + uint8_t tool_name[8]; /* 0x20-0x27 */ + uint32_t tool_version; /* 0x28-0x2b */ + uint32_t date; /* 0x2c-0x2f */ + uint8_t user_name[15]; /* 0x30-0x3e */ + uint8_t record_type; /* 0x3f */ +}; + +/* Type 0xff: empty + * + * this allows keeping empty slots during development, + * so they can be filled later with minimal efforts and + * no misleading description is ever shipped -- hopefully. + * It can also be used to pad a table to a desired length. + */ +struct sdb_empty { + uint8_t reserved[63]; /* 0x00-0x3e */ + uint8_t record_type; /* 0x3f */ +}; + +/* The type of bus, for bus-specific flags */ +enum sdb_bus_type { + sdb_wishbone = 0x00, + sdb_data = 0x01, +}; + +#define SDB_WB_WIDTH_MASK 0x0f +#define SDB_WB_ACCESS8 0x01 +#define SDB_WB_ACCESS16 0x02 +#define SDB_WB_ACCESS32 0x04 +#define SDB_WB_ACCESS64 0x08 +#define SDB_WB_LITTLE_ENDIAN 0x80 + +#define SDB_DATA_READ 0x04 +#define SDB_DATA_WRITE 0x02 +#define SDB_DATA_EXEC 0x01 + +#endif /* __SDB_H__ */ diff --git a/include/linux/security.h b/include/linux/security.h index a585a9085e4..7ce53ae1266 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -1412,7 +1412,8 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) * @ctxlen contains the length of @ctx. * * @inode_getsecctx: - * Returns a string containing all relevant security context information + * On success, returns 0 and fills out @ctx and @ctxlen with the security + * context for the given @inode. * * @inode we wish to get the security context of. * @ctx is a pointer in which to place the allocated security context. diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h index 2da29ac178f..4e32edc8f50 100644 --- a/include/linux/seq_file.h +++ b/include/linux/seq_file.h @@ -173,4 +173,10 @@ extern struct hlist_node *seq_hlist_start_head_rcu(struct hlist_head *head, extern struct hlist_node *seq_hlist_next_rcu(void *v, struct hlist_head *head, loff_t *ppos); + +/* Helpers for iterating over per-cpu hlist_head-s in seq_files */ +extern struct hlist_node *seq_hlist_start_percpu(struct hlist_head __percpu *head, int *cpu, loff_t pos); + +extern struct hlist_node *seq_hlist_next_percpu(void *v, struct hlist_head __percpu *head, int *cpu, loff_t *pos); + #endif diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 87d4bbc773f..b98291ac7f1 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -31,6 +31,13 @@ #include <linux/sysrq.h> #include <uapi/linux/serial_core.h> +#ifdef CONFIG_SERIAL_CORE_CONSOLE +#define uart_console(port) \ + ((port)->cons && (port)->cons->index == (port)->line) +#else +#define uart_console(port) (0) +#endif + struct uart_port; struct serial_struct; struct device; diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index eb763adf981..d34049712a4 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -5,7 +5,7 @@ #include <linux/sh_dma.h> /* - * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts) + * Generic header for SuperH (H)SCI(F) (used by sh/sh64/h8300 and related parts) */ #define SCIx_NOT_SUPPORTED (-1) @@ -16,6 +16,7 @@ enum { SCBRR_ALGO_3, /* (((clk * 2) + 16 * bps) / (16 * bps) - 1) */ SCBRR_ALGO_4, /* (((clk * 2) + 16 * bps) / (32 * bps) - 1) */ SCBRR_ALGO_5, /* (((clk * 1000 / 32) / bps) - 1) */ + SCBRR_ALGO_6, /* HSCIF variable sample rate algorithm */ }; #define SCSCR_TIE (1 << 7) @@ -37,7 +38,7 @@ enum { #define SCI_DEFAULT_ERROR_MASK (SCI_PER | SCI_FER) -/* SCxSR SCIF */ +/* SCxSR SCIF, HSCIF */ #define SCIF_ER 0x0080 #define SCIF_TEND 0x0040 #define SCIF_TDFE 0x0020 @@ -55,6 +56,9 @@ enum { #define SCSPTR_SPB2IO (1 << 1) #define SCSPTR_SPB2DT (1 << 0) +/* HSSRR HSCIF */ +#define HSCIF_SRE 0x8000 + /* Offsets into the sci_port->irqs array */ enum { SCIx_ERI_IRQ, @@ -90,6 +94,7 @@ enum { SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE, SCIx_SH4_SCIF_FIFODATA_REGTYPE, SCIx_SH7705_SCIF_REGTYPE, + SCIx_HSCIF_REGTYPE, SCIx_NR_REGTYPES, }; @@ -115,6 +120,7 @@ enum { SCSMR, SCBRR, SCSCR, SCxSR, SCFCR, SCFDR, SCxTDR, SCxRDR, SCLSR, SCTFDR, SCRFDR, SCSPTR, + HSSRR, SCIx_NR_REGS, }; @@ -137,7 +143,7 @@ struct plat_sci_port { unsigned long mapbase; /* resource base */ unsigned int irqs[SCIx_NR_IRQS]; /* ERI, RXI, TXI, BRI */ unsigned int gpios[SCIx_NR_FNS]; /* SCK, RXD, TXD, CTS, RTS */ - unsigned int type; /* SCI / SCIF / IRDA */ + unsigned int type; /* SCI / SCIF / IRDA / HSCIF */ upf_t flags; /* UPF_* flags */ unsigned long capabilities; /* Port features/capabilities */ diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h index b64d6bec6f9..4e83f3e034f 100644 --- a/include/linux/sh_dma.h +++ b/include/linux/sh_dma.h @@ -99,6 +99,4 @@ struct sh_dmae_pdata { #define CHCR_TE 0x00000002 #define CHCR_IE 0x00000004 -bool shdma_chan_filter(struct dma_chan *chan, void *arg); - #endif diff --git a/include/linux/shdma-base.h b/include/linux/shdma-base.h index a3728bf66f0..382cf710ca9 100644 --- a/include/linux/shdma-base.h +++ b/include/linux/shdma-base.h @@ -68,6 +68,8 @@ struct shdma_chan { int id; /* Raw id of this channel */ int irq; /* Channel IRQ */ int slave_id; /* Client ID for slave DMA */ + int hw_req; /* DMA request line for slave DMA - same + * as MID/RID, used with DT */ enum shdma_pm_state pm_state; }; @@ -122,5 +124,6 @@ void shdma_chan_remove(struct shdma_chan *schan); int shdma_init(struct device *dev, struct shdma_dev *sdev, int chan_num); void shdma_cleanup(struct shdma_dev *sdev); +bool shdma_chan_filter(struct dma_chan *chan, void *arg); #endif diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 2e0ced1af3b..dec1748cd00 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -627,6 +627,7 @@ static inline struct rtable *skb_rtable(const struct sk_buff *skb) } extern void kfree_skb(struct sk_buff *skb); +extern void kfree_skb_list(struct sk_buff *segs); extern void skb_tx_error(struct sk_buff *skb); extern void consume_skb(struct sk_buff *skb); extern void __kfree_skb(struct sk_buff *skb); @@ -2852,6 +2853,21 @@ static inline int skb_tnl_header_len(const struct sk_buff *inner_skb) SKB_GSO_CB(inner_skb)->mac_offset; } +static inline int gso_pskb_expand_head(struct sk_buff *skb, int extra) +{ + int new_headroom, headroom; + int ret; + + headroom = skb_headroom(skb); + ret = pskb_expand_head(skb, extra, 0, GFP_ATOMIC); + if (ret) + return ret; + + new_headroom = skb_headroom(skb); + SKB_GSO_CB(skb)->mac_offset += (new_headroom - headroom); + return 0; +} + static inline bool skb_is_gso(const struct sk_buff *skb) { return skb_shinfo(skb)->gso_size; diff --git a/include/linux/smp.h b/include/linux/smp.h index e6564c1dc55..c181399f2c2 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -139,11 +139,12 @@ static inline int up_smp_call_function(smp_call_func_t func, void *info) } #define smp_call_function(func, info, wait) \ (up_smp_call_function(func, info)) -#define on_each_cpu(func,info,wait) \ +#define on_each_cpu(func, info, wait) \ ({ \ - local_irq_disable(); \ + unsigned long __flags; \ + local_irq_save(__flags); \ func(info); \ - local_irq_enable(); \ + local_irq_restore(__flags); \ 0; \ }) /* diff --git a/include/linux/socket.h b/include/linux/socket.h index 428c37a1f95..b10ce4b341e 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -305,7 +305,6 @@ struct ucred { extern void cred_to_ucred(struct pid *pid, const struct cred *cred, struct ucred *ucred); -extern int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len); extern int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, int offset, int len); extern int csum_partial_copy_fromiovecend(unsigned char *kdata, @@ -314,7 +313,6 @@ extern int csum_partial_copy_fromiovecend(unsigned char *kdata, unsigned int len, __wsum *csump); extern int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *address, int mode); -extern int memcpy_toiovec(struct iovec *v, unsigned char *kdata, int len); extern int memcpy_toiovecend(const struct iovec *v, unsigned char *kdata, int offset, int len); extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr); @@ -322,6 +320,9 @@ extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data); struct timespec; +/* The __sys_...msg variants allow MSG_CMSG_COMPAT */ +extern long __sys_recvmsg(int fd, struct msghdr __user *msg, unsigned flags); +extern long __sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags); extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, unsigned int flags, struct timespec *timeout); extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 733eb5ee31c..28e440be1c0 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -57,7 +57,7 @@ extern struct bus_type spi_bus_type; * @modalias: Name of the driver to use with this device, or an alias * for that name. This appears in the sysfs "modalias" attribute * for driver coldplugging, and in uevents used for hotplugging - * @cs_gpio: gpio number of the chipselect line (optional, -EINVAL when + * @cs_gpio: gpio number of the chipselect line (optional, -ENOENT when * when not using a GPIO line) * * A @spi_device is used to interchange data between an SPI slave @@ -266,7 +266,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * queue so the subsystem notifies the driver that it may relax the * hardware by issuing this call * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS - * number. Any individual value may be -EINVAL for CS lines that + * number. Any individual value may be -ENOENT for CS lines that * are not GPIOs (driven by the SPI controller itself). * * Each SPI master controller can communicate with one or more @spi_device @@ -308,6 +308,9 @@ struct spi_master { /* bitmask of supported bits_per_word for transfers */ u32 bits_per_word_mask; +#define SPI_BPW_MASK(bits) BIT((bits) - 1) +#define SPI_BIT_MASK(bits) (((bits) == 32) ? ~0UL : (BIT(bits) - 1)) +#define SPI_BPW_RANGE_MASK(min, max) (SPI_BIT_MASK(max) - SPI_BIT_MASK(min - 1)) /* other constraints relevant to this driver */ u16 flags; diff --git a/include/linux/spi/xilinx_spi.h b/include/linux/spi/xilinx_spi.h index 6f17278810b..333ecdfee0d 100644 --- a/include/linux/spi/xilinx_spi.h +++ b/include/linux/spi/xilinx_spi.h @@ -11,7 +11,6 @@ */ struct xspi_platform_data { u16 num_chipselect; - bool little_endian; u8 bits_per_word; struct spi_board_info *devices; u8 num_devices; diff --git a/include/linux/spinlock_api_smp.h b/include/linux/spinlock_api_smp.h index 51df117abe4..bdb9993f0fd 100644 --- a/include/linux/spinlock_api_smp.h +++ b/include/linux/spinlock_api_smp.h @@ -144,7 +144,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock) LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock); } -#endif /* CONFIG_PREEMPT */ +#endif /* !CONFIG_GENERIC_LOCKBREAK || CONFIG_DEBUG_LOCK_ALLOC */ static inline void __raw_spin_unlock(raw_spinlock_t *lock) { diff --git a/include/linux/spinlock_up.h b/include/linux/spinlock_up.h index e2369c167db..8b3ac0d718e 100644 --- a/include/linux/spinlock_up.h +++ b/include/linux/spinlock_up.h @@ -67,7 +67,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock) #else /* DEBUG_SPINLOCK */ #define arch_spin_is_locked(lock) ((void)(lock), 0) -/* for sched.c and kernel_lock.c: */ +/* for sched/core.c and kernel_lock.c: */ # define arch_spin_lock(lock) do { barrier(); (void)(lock); } while (0) # define arch_spin_lock_flags(lock, flags) do { barrier(); (void)(lock); } while (0) # define arch_spin_unlock(lock) do { barrier(); (void)(lock); } while (0) diff --git a/include/linux/splice.h b/include/linux/splice.h index 09a545a7dfa..74575cbf2d6 100644 --- a/include/linux/splice.h +++ b/include/linux/splice.h @@ -35,6 +35,7 @@ struct splice_desc { void *data; /* cookie */ } u; loff_t pos; /* file position */ + loff_t *opos; /* sendfile: output position */ size_t num_spliced; /* number of bytes already spliced */ bool need_wakeup; /* need to wake up writer */ }; diff --git a/include/linux/srcu.h b/include/linux/srcu.h index 04f4121a23a..c114614ed17 100644 --- a/include/linux/srcu.h +++ b/include/linux/srcu.h @@ -237,47 +237,4 @@ static inline void srcu_read_unlock(struct srcu_struct *sp, int idx) __srcu_read_unlock(sp, idx); } -/** - * srcu_read_lock_raw - register a new reader for an SRCU-protected structure. - * @sp: srcu_struct in which to register the new reader. - * - * Enter an SRCU read-side critical section. Similar to srcu_read_lock(), - * but avoids the RCU-lockdep checking. This means that it is legal to - * use srcu_read_lock_raw() in one context, for example, in an exception - * handler, and then have the matching srcu_read_unlock_raw() in another - * context, for example in the task that took the exception. - * - * However, the entire SRCU read-side critical section must reside within a - * single task. For example, beware of using srcu_read_lock_raw() in - * a device interrupt handler and srcu_read_unlock() in the interrupted - * task: This will not work if interrupts are threaded. - */ -static inline int srcu_read_lock_raw(struct srcu_struct *sp) -{ - unsigned long flags; - int ret; - - local_irq_save(flags); - ret = __srcu_read_lock(sp); - local_irq_restore(flags); - return ret; -} - -/** - * srcu_read_unlock_raw - unregister reader from an SRCU-protected structure. - * @sp: srcu_struct in which to unregister the old reader. - * @idx: return value from corresponding srcu_read_lock_raw(). - * - * Exit an SRCU read-side critical section without lockdep-RCU checking. - * See srcu_read_lock_raw() for more details. - */ -static inline void srcu_read_unlock_raw(struct srcu_struct *sp, int idx) -{ - unsigned long flags; - - local_irq_save(flags); - __srcu_read_unlock(sp, idx); - local_irq_restore(flags); -} - #endif diff --git a/include/linux/suspend.h b/include/linux/suspend.h index d4e3f16d5e8..f73cabf5901 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -363,6 +363,7 @@ extern bool pm_wakeup_pending(void); extern bool pm_get_wakeup_count(unsigned int *count, bool block); extern bool pm_save_wakeup_count(unsigned int count); extern void pm_wakep_autosleep_enabled(bool set); +extern void pm_print_active_wakeup_sources(void); static inline void lock_system_sleep(void) { diff --git a/include/linux/swap.h b/include/linux/swap.h index 1701ce4be74..d95cde5e257 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -10,6 +10,7 @@ #include <linux/node.h> #include <linux/fs.h> #include <linux/atomic.h> +#include <linux/page-flags.h> #include <asm/page.h> struct notifier_block; @@ -19,10 +20,13 @@ struct bio; #define SWAP_FLAG_PREFER 0x8000 /* set if swap priority specified */ #define SWAP_FLAG_PRIO_MASK 0x7fff #define SWAP_FLAG_PRIO_SHIFT 0 -#define SWAP_FLAG_DISCARD 0x10000 /* discard swap cluster after use */ +#define SWAP_FLAG_DISCARD 0x10000 /* enable discard for swap */ +#define SWAP_FLAG_DISCARD_ONCE 0x20000 /* discard swap area at swapon-time */ +#define SWAP_FLAG_DISCARD_PAGES 0x40000 /* discard page-clusters after use */ #define SWAP_FLAGS_VALID (SWAP_FLAG_PRIO_MASK | SWAP_FLAG_PREFER | \ - SWAP_FLAG_DISCARD) + SWAP_FLAG_DISCARD | SWAP_FLAG_DISCARD_ONCE | \ + SWAP_FLAG_DISCARD_PAGES) static inline int current_is_kswapd(void) { @@ -146,14 +150,16 @@ struct swap_extent { enum { SWP_USED = (1 << 0), /* is slot in swap_info[] used? */ SWP_WRITEOK = (1 << 1), /* ok to write to this swap? */ - SWP_DISCARDABLE = (1 << 2), /* swapon+blkdev support discard */ + SWP_DISCARDABLE = (1 << 2), /* blkdev support discard */ SWP_DISCARDING = (1 << 3), /* now discarding a free cluster */ SWP_SOLIDSTATE = (1 << 4), /* blkdev seeks are cheap */ SWP_CONTINUED = (1 << 5), /* swap_map has count continuation */ SWP_BLKDEV = (1 << 6), /* its a block device */ SWP_FILE = (1 << 7), /* set after swap_activate success */ + SWP_AREA_DISCARD = (1 << 8), /* single-time swap area discards */ + SWP_PAGE_DISCARD = (1 << 9), /* freed swap page-cluster discards */ /* add others here before... */ - SWP_SCANNING = (1 << 8), /* refcount in scan_swap_map */ + SWP_SCANNING = (1 << 10), /* refcount in scan_swap_map */ }; #define SWAP_CLUSTER_MAX 32UL @@ -233,8 +239,8 @@ extern unsigned long nr_free_pagecache_pages(void); /* linux/mm/swap.c */ -extern void __lru_cache_add(struct page *, enum lru_list lru); -extern void lru_cache_add_lru(struct page *, enum lru_list lru); +extern void __lru_cache_add(struct page *); +extern void lru_cache_add(struct page *); extern void lru_add_page_tail(struct page *page, struct page *page_tail, struct lruvec *lruvec, struct list_head *head); extern void activate_page(struct page *); @@ -254,12 +260,14 @@ extern void add_page_to_unevictable_list(struct page *page); */ static inline void lru_cache_add_anon(struct page *page) { - __lru_cache_add(page, LRU_INACTIVE_ANON); + ClearPageActive(page); + __lru_cache_add(page); } static inline void lru_cache_add_file(struct page *page) { - __lru_cache_add(page, LRU_INACTIVE_FILE); + ClearPageActive(page); + __lru_cache_add(page); } /* linux/mm/vmscan.c */ diff --git a/include/linux/swapops.h b/include/linux/swapops.h index 47ead515c81..c5fd30d2a41 100644 --- a/include/linux/swapops.h +++ b/include/linux/swapops.h @@ -137,6 +137,7 @@ static inline void make_migration_entry_read(swp_entry_t *entry) extern void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd, unsigned long address); +extern void migration_entry_wait_huge(struct mm_struct *mm, pte_t *pte); #else #define make_migration_entry(page, write) swp_entry(0, 0) @@ -148,6 +149,8 @@ static inline int is_migration_entry(swp_entry_t swp) static inline void make_migration_entry_read(swp_entry_t *entryp) { } static inline void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd, unsigned long address) { } +static inline void migration_entry_wait_huge(struct mm_struct *mm, + pte_t *pte) { } static inline int is_write_migration_entry(swp_entry_t entry) { return 0; diff --git a/include/linux/syslog.h b/include/linux/syslog.h index 38911391a13..98a3153c0f9 100644 --- a/include/linux/syslog.h +++ b/include/linux/syslog.h @@ -44,8 +44,8 @@ /* Return size of the log buffer */ #define SYSLOG_ACTION_SIZE_BUFFER 10 -#define SYSLOG_FROM_CALL 0 -#define SYSLOG_FROM_FILE 1 +#define SYSLOG_FROM_READER 0 +#define SYSLOG_FROM_PROC 1 int do_syslog(int type, char __user *buf, int count, bool from_file); diff --git a/include/linux/time.h b/include/linux/time.h index 22d81b3c955..d5d229b2e5a 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -117,14 +117,10 @@ static inline bool timespec_valid_strict(const struct timespec *ts) extern bool persistent_clock_exist; -#ifdef ALWAYS_USE_PERSISTENT_CLOCK -#define has_persistent_clock() true -#else static inline bool has_persistent_clock(void) { return persistent_clock_exist; } -#endif extern void read_persistent_clock(struct timespec *ts); extern void read_boot_clock(struct timespec *ts); diff --git a/include/linux/tpm.h b/include/linux/tpm.h index fcb627ff8d3..9a9051bb1a0 100644 --- a/include/linux/tpm.h +++ b/include/linux/tpm.h @@ -22,6 +22,8 @@ #ifndef __LINUX_TPM_H__ #define __LINUX_TPM_H__ +#define TPM_DIGEST_SIZE 20 /* Max TPM v1.2 PCR size */ + /* * Chip num is this value or a valid tpm idx */ diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 2f322c38bd4..ebeab360d85 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -145,8 +145,8 @@ static inline void tracepoint_synchronize_unregister(void) TP_PROTO(data_proto), \ TP_ARGS(data_args), \ TP_CONDITION(cond), \ - rcu_idle_exit(), \ - rcu_idle_enter()); \ + rcu_irq_enter(), \ + rcu_irq_exit()); \ } #else #define __DECLARE_TRACE_RCU(name, proto, args, cond, data_proto, data_args) @@ -378,6 +378,8 @@ static inline void tracepoint_synchronize_unregister(void) #define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print) #define DEFINE_EVENT(template, name, proto, args) \ DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) +#define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg)\ + DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) #define DEFINE_EVENT_CONDITION(template, name, proto, \ diff --git a/include/linux/tty.h b/include/linux/tty.h index 8780bd2a272..01ac30efd6a 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -272,7 +272,6 @@ struct tty_struct { #define N_TTY_BUF_SIZE 4096 unsigned char closing:1; - unsigned short minimum_to_wake; unsigned char *write_buf; int write_cnt; /* If the tty has a pending do_SAK, queue it here - akpm */ @@ -309,8 +308,6 @@ struct tty_file_private { #define TTY_LDISC 9 /* Line discipline attached */ #define TTY_LDISC_CHANGING 10 /* Line discipline changing */ #define TTY_LDISC_OPEN 11 /* Line discipline is open */ -#define TTY_HW_COOK_OUT 14 /* Hardware can do output cooking */ -#define TTY_HW_COOK_IN 15 /* Hardware can do input cooking */ #define TTY_PTY_LOCK 16 /* pty private */ #define TTY_NO_WRITE_SPLIT 17 /* Preserve write boundaries to driver */ #define TTY_HUPPED 18 /* Post driver->hangup() */ diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h index 58390c73df8..a1b04899982 100644 --- a/include/linux/tty_ldisc.h +++ b/include/linux/tty_ldisc.h @@ -100,6 +100,11 @@ * seek to perform this action quickly but should wait until * any pending driver I/O is completed. * + * void (*fasync)(struct tty_struct *, int on) + * + * Notify line discipline when signal-driven I/O is enabled or + * disabled. + * * void (*dcd_change)(struct tty_struct *tty, unsigned int status) * * Tells the discipline that the DCD pin has changed its status. @@ -110,6 +115,52 @@ #include <linux/wait.h> #include <linux/wait.h> + +/* + * the semaphore definition + */ +struct ld_semaphore { + long count; + raw_spinlock_t wait_lock; + unsigned int wait_readers; + struct list_head read_wait; + struct list_head write_wait; +#ifdef CONFIG_DEBUG_LOCK_ALLOC + struct lockdep_map dep_map; +#endif +}; + +extern void __init_ldsem(struct ld_semaphore *sem, const char *name, + struct lock_class_key *key); + +#define init_ldsem(sem) \ +do { \ + static struct lock_class_key __key; \ + \ + __init_ldsem((sem), #sem, &__key); \ +} while (0) + + +extern int ldsem_down_read(struct ld_semaphore *sem, long timeout); +extern int ldsem_down_read_trylock(struct ld_semaphore *sem); +extern int ldsem_down_write(struct ld_semaphore *sem, long timeout); +extern int ldsem_down_write_trylock(struct ld_semaphore *sem); +extern void ldsem_up_read(struct ld_semaphore *sem); +extern void ldsem_up_write(struct ld_semaphore *sem); + +#ifdef CONFIG_DEBUG_LOCK_ALLOC +extern int ldsem_down_read_nested(struct ld_semaphore *sem, int subclass, + long timeout); +extern int ldsem_down_write_nested(struct ld_semaphore *sem, int subclass, + long timeout); +#else +# define ldsem_down_read_nested(sem, subclass, timeout) \ + ldsem_down_read(sem, timeout) +# define ldsem_down_write_nested(sem, subclass, timeout) \ + ldsem_down_write(sem, timeout) +#endif + + struct tty_ldisc_ops { int magic; char *name; @@ -143,6 +194,7 @@ struct tty_ldisc_ops { char *fp, int count); void (*write_wakeup)(struct tty_struct *); void (*dcd_change)(struct tty_struct *, unsigned int); + void (*fasync)(struct tty_struct *tty, int on); struct module *owner; diff --git a/include/linux/uio.h b/include/linux/uio.h index 629aaf51f30..c55ce243cc0 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -35,4 +35,7 @@ static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs) } unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to); + +int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len); +int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len); #endif diff --git a/include/linux/usb.h b/include/linux/usb.h index a0bee5a28d1..a232b7ece1f 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -394,6 +394,22 @@ enum usb_port_connect_type { }; /* + * USB 2.0 Link Power Management (LPM) parameters. + */ +struct usb2_lpm_parameters { + /* Best effort service latency indicate how long the host will drive + * resume on an exit from L1. + */ + unsigned int besl; + + /* Timeout value in microseconds for the L1 inactivity (LPM) timer. + * When the timer counts to zero, the parent hub will initiate a LPM + * transition to L1. + */ + int timeout; +}; + +/* * USB 3.0 Link Power Management (LPM) parameters. * * PEL and SEL are USB 3.0 Link PM latencies for device-initiated LPM exit. @@ -468,6 +484,7 @@ struct usb3_lpm_parameters { * @wusb: device is Wireless USB * @lpm_capable: device supports LPM * @usb2_hw_lpm_capable: device can perform USB2 hardware LPM + * @usb2_hw_lpm_besl_capable: device can perform USB2 hardware BESL LPM * @usb2_hw_lpm_enabled: USB2 hardware LPM enabled * @usb3_lpm_enabled: USB3 hardware LPM enabled * @string_langid: language ID for strings @@ -487,6 +504,7 @@ struct usb3_lpm_parameters { * specific data for the device. * @slot_id: Slot ID assigned by xHCI * @removable: Device can be physically removed from this port + * @l1_params: best effor service latency for USB2 L1 LPM state, and L1 timeout. * @u1_params: exit latencies for USB3 U1 LPM state, and hub-initiated timeout. * @u2_params: exit latencies for USB3 U2 LPM state, and hub-initiated timeout. * @lpm_disable_count: Ref count used by usb_disable_lpm() and usb_enable_lpm() @@ -538,6 +556,7 @@ struct usb_device { unsigned wusb:1; unsigned lpm_capable:1; unsigned usb2_hw_lpm_capable:1; + unsigned usb2_hw_lpm_besl_capable:1; unsigned usb2_hw_lpm_enabled:1; unsigned usb3_lpm_enabled:1; int string_langid; @@ -566,6 +585,7 @@ struct usb_device { struct wusb_dev *wusb_dev; int slot_id; enum usb_device_removable removable; + struct usb2_lpm_parameters l1_params; struct usb3_lpm_parameters u1_params; struct usb3_lpm_parameters u2_params; unsigned lpm_disable_count; @@ -717,6 +737,7 @@ const struct usb_device_id *usb_match_id(struct usb_interface *interface, extern int usb_match_one_id(struct usb_interface *interface, const struct usb_device_id *id); +extern int usb_for_each_dev(void *data, int (*fn)(struct usb_device *, void *)); extern struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor); extern struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev, diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index 544825dde82..25629948c84 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -7,32 +7,33 @@ #include <linux/usb/otg.h> -struct ci13xxx; -struct ci13xxx_platform_data { +struct ci_hdrc; +struct ci_hdrc_platform_data { const char *name; /* offset of the capability registers */ uintptr_t capoffset; unsigned power_budget; struct usb_phy *phy; + enum usb_phy_interface phy_mode; unsigned long flags; -#define CI13XXX_REGS_SHARED BIT(0) -#define CI13XXX_REQUIRE_TRANSCEIVER BIT(1) -#define CI13XXX_PULLUP_ON_VBUS BIT(2) -#define CI13XXX_DISABLE_STREAMING BIT(3) - -#define CI13XXX_CONTROLLER_RESET_EVENT 0 -#define CI13XXX_CONTROLLER_STOPPED_EVENT 1 - void (*notify_event) (struct ci13xxx *ci, unsigned event); +#define CI_HDRC_REGS_SHARED BIT(0) +#define CI_HDRC_REQUIRE_TRANSCEIVER BIT(1) +#define CI_HDRC_PULLUP_ON_VBUS BIT(2) +#define CI_HDRC_DISABLE_STREAMING BIT(3) + enum usb_dr_mode dr_mode; +#define CI_HDRC_CONTROLLER_RESET_EVENT 0 +#define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 + void (*notify_event) (struct ci_hdrc *ci, unsigned event); }; /* Default offset of capability registers */ #define DEF_CAPOFFSET 0x100 -/* Add ci13xxx device */ -struct platform_device *ci13xxx_add_device(struct device *dev, +/* Add ci hdrc device */ +struct platform_device *ci_hdrc_add_device(struct device *dev, struct resource *res, int nres, - struct ci13xxx_platform_data *platdata); -/* Remove ci13xxx device */ -void ci13xxx_remove_device(struct platform_device *pdev); + struct ci_hdrc_platform_data *platdata); +/* Remove ci hdrc device */ +void ci_hdrc_remove_device(struct platform_device *pdev); #endif diff --git a/include/linux/usb/ehci_pdriver.h b/include/linux/usb/ehci_pdriver.h index 99238b096f7..7eb4dcd0d38 100644 --- a/include/linux/usb/ehci_pdriver.h +++ b/include/linux/usb/ehci_pdriver.h @@ -19,6 +19,9 @@ #ifndef __USB_CORE_EHCI_PDRIVER_H #define __USB_CORE_EHCI_PDRIVER_H +struct platform_device; +struct usb_hcd; + /** * struct usb_ehci_pdata - platform_data for generic ehci driver * @@ -50,6 +53,7 @@ struct usb_ehci_pdata { /* Turn on only VBUS suspend power and hotplug detection, * turn off everything else */ void (*power_suspend)(struct platform_device *pdev); + int (*pre_setup)(struct usb_hcd *hcd); }; #endif /* __USB_CORE_EHCI_PDRIVER_H */ diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index c454a88abf2..f1b0dca60f1 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -563,9 +563,8 @@ static inline int gadget_is_dualspeed(struct usb_gadget *g) } /** - * gadget_is_superspeed() - return true if the hardware handles - * supperspeed - * @g: controller that might support supper speed + * gadget_is_superspeed() - return true if the hardware handles superspeed + * @g: controller that might support superspeed */ static inline int gadget_is_superspeed(struct usb_gadget *g) { diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index f5f5c7dfda9..1e88377e22f 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -218,6 +218,7 @@ struct hc_driver { #define HCD_SHARED 0x0004 /* Two (or more) usb_hcds share HW */ #define HCD_USB11 0x0010 /* USB 1.1 */ #define HCD_USB2 0x0020 /* USB 2.0 */ +#define HCD_USB25 0x0030 /* Wireless USB 1.0 (USB 2.5)*/ #define HCD_USB3 0x0040 /* USB 3.0 */ #define HCD_MASK 0x0070 diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h new file mode 100644 index 00000000000..a0ef405368b --- /dev/null +++ b/include/linux/usb/of.h @@ -0,0 +1,32 @@ +/* + * OF helpers for usb devices. + * + * This file is released under the GPLv2 + */ + +#ifndef __LINUX_USB_OF_H +#define __LINUX_USB_OF_H + +#include <linux/usb/otg.h> +#include <linux/usb/phy.h> + +#if IS_ENABLED(CONFIG_OF) +enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np); +#else +static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np) +{ + return USB_DR_MODE_UNKNOWN; +} +#endif + +#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_PHY) +enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np); +#else +static inline enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np) +{ + return USBPHY_INTERFACE_MODE_UNKNOWN; +} + +#endif + +#endif /* __LINUX_USB_OF_H */ diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index 291e01ba32e..154332b7c8c 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -92,4 +92,11 @@ otg_start_srp(struct usb_otg *otg) /* for OTG controller drivers (and maybe other stuff) */ extern int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num); +enum usb_dr_mode { + USB_DR_MODE_UNKNOWN, + USB_DR_MODE_HOST, + USB_DR_MODE_PERIPHERAL, + USB_DR_MODE_OTG, +}; + #endif /* __LINUX_USB_OTG_H */ diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index 6b5978f5763..44036808bf0 100644 --- a/include/linux/usb/phy.h +++ b/include/linux/usb/phy.h @@ -12,6 +12,15 @@ #include <linux/notifier.h> #include <linux/usb.h> +enum usb_phy_interface { + USBPHY_INTERFACE_MODE_UNKNOWN, + USBPHY_INTERFACE_MODE_UTMI, + USBPHY_INTERFACE_MODE_UTMIW, + USBPHY_INTERFACE_MODE_ULPI, + USBPHY_INTERFACE_MODE_SERIAL, + USBPHY_INTERFACE_MODE_HSIC, +}; + enum usb_phy_events { USB_EVENT_NONE, /* no events or cable disconnected */ USB_EVENT_VBUS, /* vbus valid event */ diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index b9b0f7b4e43..d528b804515 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -19,10 +19,6 @@ #include <linux/sysrq.h> #include <linux/kfifo.h> -#define SERIAL_TTY_MAJOR 188 /* Nice legal number now */ -#define SERIAL_TTY_MINORS 254 /* loads of devices :) */ -#define SERIAL_TTY_NO_MINOR 255 /* No minor was assigned */ - /* The maximum number of ports one device can grab at once */ #define MAX_NUM_PORTS 8 @@ -37,7 +33,8 @@ * @serial: pointer back to the struct usb_serial owner of this port. * @port: pointer to the corresponding tty_port for this port. * @lock: spinlock to grab when updating portions of this structure. - * @number: the number of the port (the minor number). + * @minor: the minor number of the port + * @port_number: the struct usb_serial port number of this port (starts at 0) * @interrupt_in_buffer: pointer to the interrupt in buffer for this port. * @interrupt_in_urb: pointer to the interrupt in struct urb for this port. * @interrupt_in_endpointAddress: endpoint address for the interrupt in pipe @@ -80,7 +77,8 @@ struct usb_serial_port { struct usb_serial *serial; struct tty_port port; spinlock_t lock; - unsigned char number; + u32 minor; + u8 port_number; unsigned char *interrupt_in_buffer; struct urb *interrupt_in_urb; @@ -140,7 +138,6 @@ static inline void usb_set_serial_port_data(struct usb_serial_port *port, * @dev: pointer to the struct usb_device for this device * @type: pointer to the struct usb_serial_driver for this device * @interface: pointer to the struct usb_interface for this device - * @minor: the starting minor number for this device * @num_ports: the number of ports this device has * @num_interrupt_in: number of interrupt in endpoints we have * @num_interrupt_out: number of interrupt out endpoints we have @@ -159,7 +156,7 @@ struct usb_serial { unsigned char disconnected:1; unsigned char suspending:1; unsigned char attached:1; - unsigned char minor; + unsigned char minors_reserved:1; unsigned char num_ports; unsigned char num_port_pointers; char num_interrupt_in; @@ -268,6 +265,8 @@ struct usb_serial_driver { struct usb_serial_port *port, struct ktermios *old); void (*break_ctl)(struct tty_struct *tty, int break_state); int (*chars_in_buffer)(struct tty_struct *tty); + void (*wait_until_sent)(struct tty_struct *tty, long timeout); + bool (*tx_empty)(struct usb_serial_port *port); void (*throttle)(struct tty_struct *tty); void (*unthrottle)(struct tty_struct *tty); int (*tiocmget)(struct tty_struct *tty); @@ -317,7 +316,7 @@ static inline void usb_serial_console_disconnect(struct usb_serial *serial) {} #endif /* Functions needed by other parts of the usbserial core */ -extern struct usb_serial *usb_serial_get_by_index(unsigned int minor); +extern struct usb_serial_port *usb_serial_port_get_by_minor(unsigned int minor); extern void usb_serial_put(struct usb_serial *serial); extern int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port); @@ -327,6 +326,8 @@ extern void usb_serial_generic_close(struct usb_serial_port *port); extern int usb_serial_generic_resume(struct usb_serial *serial); extern int usb_serial_generic_write_room(struct tty_struct *tty); extern int usb_serial_generic_chars_in_buffer(struct tty_struct *tty); +extern void usb_serial_generic_wait_until_sent(struct tty_struct *tty, + long timeout); extern void usb_serial_generic_read_bulk_callback(struct urb *urb); extern void usb_serial_generic_write_bulk_callback(struct urb *urb); extern void usb_serial_generic_throttle(struct tty_struct *tty); diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h index 1b7519a8c0b..d2ca919a5b7 100644 --- a/include/linux/usb/tegra_usb_phy.h +++ b/include/linux/usb/tegra_usb_phy.h @@ -42,6 +42,7 @@ enum tegra_usb_phy_port_speed { enum tegra_usb_phy_mode { TEGRA_USB_PHY_MODE_DEVICE, TEGRA_USB_PHY_MODE_HOST, + TEGRA_USB_PHY_MODE_OTG, }; struct tegra_xtal_freq; @@ -61,14 +62,10 @@ struct tegra_usb_phy { struct device *dev; bool is_legacy_phy; bool is_ulpi_phy; - void (*set_pts)(struct usb_phy *x, u8 pts_val); - void (*set_phcd)(struct usb_phy *x, bool enable); + int reset_gpio; }; -struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance, - void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode, - void (*set_pts)(struct usb_phy *x, u8 pts_val), - void (*set_phcd)(struct usb_phy *x, bool enable)); +struct usb_phy *tegra_usb_get_phy(struct device_node *dn); void tegra_usb_phy_preresume(struct usb_phy *phy); diff --git a/include/linux/usb/wusb-wa.h b/include/linux/usb/wusb-wa.h index f9dec37f617..6be985b2a43 100644 --- a/include/linux/usb/wusb-wa.h +++ b/include/linux/usb/wusb-wa.h @@ -92,11 +92,20 @@ struct usb_rpipe_descriptor { __le16 wRPipeIndex; __le16 wRequests; __le16 wBlocks; /* rw if 0 */ - __le16 wMaxPacketSize; /* rw? */ - u8 bHSHubAddress; /* reserved: 0 */ - u8 bHSHubPort; /* ??? FIXME ??? */ + __le16 wMaxPacketSize; /* rw */ + union { + u8 dwa_bHSHubAddress; /* rw: DWA. */ + u8 hwa_bMaxBurst; /* rw: HWA. */ + }; + union { + u8 dwa_bHSHubPort; /* rw: DWA. */ + u8 hwa_bDeviceInfoIndex; /* rw: HWA. */ + }; u8 bSpeed; /* rw: xfer rate 'enum uwb_phy_rate' */ - u8 bDeviceAddress; /* rw: Target device address */ + union { + u8 dwa_bDeviceAddress; /* rw: DWA Target device address. */ + u8 hwa_reserved; /* rw: HWA. */ + }; u8 bEndpointAddress; /* rw: Target EP address */ u8 bDataSequence; /* ro: Current Data sequence */ __le32 dwCurrentWindow; /* ro */ diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 9ff8645b7e0..e94c75ded11 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -34,13 +34,6 @@ struct virtqueue { void *priv; }; -int virtqueue_add_buf(struct virtqueue *vq, - struct scatterlist sg[], - unsigned int out_num, - unsigned int in_num, - void *data, - gfp_t gfp); - int virtqueue_add_outbuf(struct virtqueue *vq, struct scatterlist sg[], unsigned int num, void *data, diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 7d5773a99f2..dd0a2c81052 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -82,6 +82,10 @@ extern void *vmap(struct page **pages, unsigned int count, unsigned long flags, pgprot_t prot); extern void vunmap(const void *addr); +extern int remap_vmalloc_range_partial(struct vm_area_struct *vma, + unsigned long uaddr, void *kaddr, + unsigned long size); + extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr, unsigned long pgoff); void vmalloc_sync_all(void); diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h index e8d65718560..8d7634247fb 100644 --- a/include/linux/vt_kern.h +++ b/include/linux/vt_kern.h @@ -36,7 +36,7 @@ extern int fg_console, last_console, want_console; int vc_allocate(unsigned int console); int vc_cons_allocated(unsigned int console); int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines); -void vc_deallocate(unsigned int console); +struct vc_data *vc_deallocate(unsigned int console); void reset_palette(struct vc_data *vc); void do_blank_screen(int entering_gfx); void do_unblank_screen(int leaving_gfx); @@ -133,8 +133,6 @@ void change_console(struct vc_data *new_vc); void reset_vc(struct vc_data *vc); extern int do_unbind_con_driver(const struct consw *csw, int first, int last, int deflt); -extern int unbind_con_driver(const struct consw *csw, int first, int last, - int deflt); int vty_init(const struct file_operations *console_fops); static inline bool vt_force_oops_output(struct vc_data *vc) diff --git a/include/linux/vtime.h b/include/linux/vtime.h index 71a5782d8c5..b1dd2db8007 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -34,7 +34,7 @@ static inline void vtime_user_exit(struct task_struct *tsk) } extern void vtime_guest_enter(struct task_struct *tsk); extern void vtime_guest_exit(struct task_struct *tsk); -extern void vtime_init_idle(struct task_struct *tsk); +extern void vtime_init_idle(struct task_struct *tsk, int cpu); #else static inline void vtime_account_irq_exit(struct task_struct *tsk) { @@ -45,7 +45,7 @@ static inline void vtime_user_enter(struct task_struct *tsk) { } static inline void vtime_user_exit(struct task_struct *tsk) { } static inline void vtime_guest_enter(struct task_struct *tsk) { } static inline void vtime_guest_exit(struct task_struct *tsk) { } -static inline void vtime_init_idle(struct task_struct *tsk) { } +static inline void vtime_init_idle(struct task_struct *tsk, int cpu) { } #endif #ifdef CONFIG_IRQ_TIME_ACCOUNTING diff --git a/include/linux/wait.h b/include/linux/wait.h index ac38be2692d..f487a4750b7 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -23,6 +23,7 @@ struct __wait_queue { struct wait_bit_key { void *flags; int bit_nr; +#define WAIT_ATOMIC_T_BIT_NR -1 }; struct wait_bit_queue { @@ -60,6 +61,9 @@ struct task_struct; #define __WAIT_BIT_KEY_INITIALIZER(word, bit) \ { .flags = word, .bit_nr = bit, } +#define __WAIT_ATOMIC_T_KEY_INITIALIZER(p) \ + { .flags = p, .bit_nr = WAIT_ATOMIC_T_BIT_NR, } + extern void __init_waitqueue_head(wait_queue_head_t *q, const char *name, struct lock_class_key *); #define init_waitqueue_head(q) \ @@ -146,8 +150,10 @@ void __wake_up_bit(wait_queue_head_t *, void *, int); int __wait_on_bit(wait_queue_head_t *, struct wait_bit_queue *, int (*)(void *), unsigned); int __wait_on_bit_lock(wait_queue_head_t *, struct wait_bit_queue *, int (*)(void *), unsigned); void wake_up_bit(void *, int); +void wake_up_atomic_t(atomic_t *); int out_of_line_wait_on_bit(void *, int, int (*)(void *), unsigned); int out_of_line_wait_on_bit_lock(void *, int, int (*)(void *), unsigned); +int out_of_line_wait_on_atomic_t(atomic_t *, int (*)(atomic_t *), unsigned); wait_queue_head_t *bit_waitqueue(void *, int); #define wake_up(x) __wake_up(x, TASK_NORMAL, 1, NULL) @@ -217,6 +223,8 @@ do { \ if (!ret) \ break; \ } \ + if (!ret && (condition)) \ + ret = 1; \ finish_wait(&wq, &__wait); \ } while (0) @@ -233,8 +241,9 @@ do { \ * wake_up() has to be called after changing any variable that could * change the result of the wait condition. * - * The function returns 0 if the @timeout elapsed, and the remaining - * jiffies if the condition evaluated to true before the timeout elapsed. + * The function returns 0 if the @timeout elapsed, or the remaining + * jiffies (at least 1) if the @condition evaluated to %true before + * the @timeout elapsed. */ #define wait_event_timeout(wq, condition, timeout) \ ({ \ @@ -302,6 +311,8 @@ do { \ ret = -ERESTARTSYS; \ break; \ } \ + if (!ret && (condition)) \ + ret = 1; \ finish_wait(&wq, &__wait); \ } while (0) @@ -318,9 +329,10 @@ do { \ * wake_up() has to be called after changing any variable that could * change the result of the wait condition. * - * The function returns 0 if the @timeout elapsed, -ERESTARTSYS if it - * was interrupted by a signal, and the remaining jiffies otherwise - * if the condition evaluated to true before the timeout elapsed. + * Returns: + * 0 if the @timeout elapsed, -%ERESTARTSYS if it was interrupted by + * a signal, or the remaining jiffies (at least 1) if the @condition + * evaluated to %true before the @timeout elapsed. */ #define wait_event_interruptible_timeout(wq, condition, timeout) \ ({ \ @@ -896,5 +908,23 @@ static inline int wait_on_bit_lock(void *word, int bit, return 0; return out_of_line_wait_on_bit_lock(word, bit, action, mode); } + +/** + * wait_on_atomic_t - Wait for an atomic_t to become 0 + * @val: The atomic value being waited on, a kernel virtual address + * @action: the function used to sleep, which may take special actions + * @mode: the task state to sleep in + * + * Wait for an atomic_t to become 0. We abuse the bit-wait waitqueue table for + * the purpose of getting a waitqueue, but we set the key to a bit number + * outside of the target 'word'. + */ +static inline +int wait_on_atomic_t(atomic_t *val, int (*action)(atomic_t *), unsigned mode) +{ + if (atomic_read(val) == 0) + return 0; + return out_of_line_wait_on_atomic_t(val, action, mode); +} #endif diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 623488fdc1f..a0ed78ab54d 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -303,6 +303,33 @@ enum { WQ_CPU_INTENSIVE = 1 << 5, /* cpu instensive workqueue */ WQ_SYSFS = 1 << 6, /* visible in sysfs, see wq_sysfs_register() */ + /* + * Per-cpu workqueues are generally preferred because they tend to + * show better performance thanks to cache locality. Per-cpu + * workqueues exclude the scheduler from choosing the CPU to + * execute the worker threads, which has an unfortunate side effect + * of increasing power consumption. + * + * The scheduler considers a CPU idle if it doesn't have any task + * to execute and tries to keep idle cores idle to conserve power; + * however, for example, a per-cpu work item scheduled from an + * interrupt handler on an idle CPU will force the scheduler to + * excute the work item on that CPU breaking the idleness, which in + * turn may lead to more scheduling choices which are sub-optimal + * in terms of power consumption. + * + * Workqueues marked with WQ_POWER_EFFICIENT are per-cpu by default + * but become unbound if workqueue.power_efficient kernel param is + * specified. Per-cpu workqueues which are identified to + * contribute significantly to power-consumption are identified and + * marked with this flag and enabling the power_efficient mode + * leads to noticeable power saving at the cost of small + * performance disadvantage. + * + * http://thread.gmane.org/gmane.linux.kernel/1480396 + */ + WQ_POWER_EFFICIENT = 1 << 7, + __WQ_DRAINING = 1 << 16, /* internal: workqueue is draining */ __WQ_ORDERED = 1 << 17, /* internal: workqueue is ordered */ @@ -333,11 +360,19 @@ enum { * * system_freezable_wq is equivalent to system_wq except that it's * freezable. + * + * *_power_efficient_wq are inclined towards saving power and converted + * into WQ_UNBOUND variants if 'wq_power_efficient' is enabled; otherwise, + * they are same as their non-power-efficient counterparts - e.g. + * system_power_efficient_wq is identical to system_wq if + * 'wq_power_efficient' is disabled. See WQ_POWER_EFFICIENT for more info. */ extern struct workqueue_struct *system_wq; extern struct workqueue_struct *system_long_wq; extern struct workqueue_struct *system_unbound_wq; extern struct workqueue_struct *system_freezable_wq; +extern struct workqueue_struct *system_power_efficient_wq; +extern struct workqueue_struct *system_freezable_power_efficient_wq; static inline struct workqueue_struct * __deprecated __system_nrt_wq(void) { @@ -410,11 +445,12 @@ __alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active, alloc_workqueue(fmt, WQ_UNBOUND | __WQ_ORDERED | (flags), 1, ##args) #define create_workqueue(name) \ - alloc_workqueue((name), WQ_MEM_RECLAIM, 1) + alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, (name)) #define create_freezable_workqueue(name) \ - alloc_workqueue((name), WQ_FREEZABLE | WQ_UNBOUND | WQ_MEM_RECLAIM, 1) + alloc_workqueue("%s", WQ_FREEZABLE | WQ_UNBOUND | WQ_MEM_RECLAIM, \ + 1, (name)) #define create_singlethread_workqueue(name) \ - alloc_workqueue((name), WQ_UNBOUND | WQ_MEM_RECLAIM, 1) + alloc_workqueue("%s", WQ_UNBOUND | WQ_MEM_RECLAIM, 1, (name)) extern void destroy_workqueue(struct workqueue_struct *wq); diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 579a5007c69..abfe11787af 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -78,6 +78,7 @@ struct writeback_control { unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */ unsigned for_reclaim:1; /* Invoked from the page allocator */ unsigned range_cyclic:1; /* range_start is cyclic */ + unsigned for_sync:1; /* sync(2) WB_SYNC_ALL writeback */ }; /* |