diff options
author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
commit | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch) | |
tree | bc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/linux/irq.h | |
parent | 21adb5284111190057db245cfc2b54091920c373 (diff) |
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/linux/irq.h')
-rw-r--r-- | libdde_linux26/contrib/include/linux/irq.h | 425 |
1 files changed, 0 insertions, 425 deletions
diff --git a/libdde_linux26/contrib/include/linux/irq.h b/libdde_linux26/contrib/include/linux/irq.h deleted file mode 100644 index f899b502..00000000 --- a/libdde_linux26/contrib/include/linux/irq.h +++ /dev/null @@ -1,425 +0,0 @@ -#ifndef _LINUX_IRQ_H -#define _LINUX_IRQ_H - -/* - * Please do not include this file in generic code. There is currently - * no requirement for any architecture to implement anything held - * within this file. - * - * Thanks. --rmk - */ - -#include <linux/smp.h> - -#ifndef CONFIG_S390 - -#include <linux/linkage.h> -#include <linux/cache.h> -#include <linux/spinlock.h> -#include <linux/cpumask.h> -#include <linux/irqreturn.h> -#include <linux/irqnr.h> -#include <linux/errno.h> - -#include <asm/irq.h> -#include <asm/ptrace.h> -#include <asm/irq_regs.h> - -struct irq_desc; -typedef void (*irq_flow_handler_t)(unsigned int irq, - struct irq_desc *desc); - - -/* - * IRQ line status. - * - * Bits 0-7 are reserved for the IRQF_* bits in linux/interrupt.h - * - * IRQ types - */ -#define IRQ_TYPE_NONE 0x00000000 /* Default, unspecified type */ -#define IRQ_TYPE_EDGE_RISING 0x00000001 /* Edge rising type */ -#define IRQ_TYPE_EDGE_FALLING 0x00000002 /* Edge falling type */ -#define IRQ_TYPE_EDGE_BOTH (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING) -#define IRQ_TYPE_LEVEL_HIGH 0x00000004 /* Level high type */ -#define IRQ_TYPE_LEVEL_LOW 0x00000008 /* Level low type */ -#define IRQ_TYPE_SENSE_MASK 0x0000000f /* Mask of the above */ -#define IRQ_TYPE_PROBE 0x00000010 /* Probing in progress */ - -/* Internal flags */ -#define IRQ_INPROGRESS 0x00000100 /* IRQ handler active - do not enter! */ -#define IRQ_DISABLED 0x00000200 /* IRQ disabled - do not enter! */ -#define IRQ_PENDING 0x00000400 /* IRQ pending - replay on enable */ -#define IRQ_REPLAY 0x00000800 /* IRQ has been replayed but not acked yet */ -#define IRQ_AUTODETECT 0x00001000 /* IRQ is being autodetected */ -#define IRQ_WAITING 0x00002000 /* IRQ not yet seen - for autodetection */ -#define IRQ_LEVEL 0x00004000 /* IRQ level triggered */ -#define IRQ_MASKED 0x00008000 /* IRQ masked - shouldn't be seen again */ -#define IRQ_PER_CPU 0x00010000 /* IRQ is per CPU */ -#define IRQ_NOPROBE 0x00020000 /* IRQ is not valid for probing */ -#define IRQ_NOREQUEST 0x00040000 /* IRQ cannot be requested */ -#define IRQ_NOAUTOEN 0x00080000 /* IRQ will not be enabled on request irq */ -#define IRQ_WAKEUP 0x00100000 /* IRQ triggers system wakeup */ -#define IRQ_MOVE_PENDING 0x00200000 /* need to re-target IRQ destination */ -#define IRQ_NO_BALANCING 0x00400000 /* IRQ is excluded from balancing */ -#define IRQ_SPURIOUS_DISABLED 0x00800000 /* IRQ was disabled by the spurious trap */ -#define IRQ_MOVE_PCNTXT 0x01000000 /* IRQ migration from process context */ -#define IRQ_AFFINITY_SET 0x02000000 /* IRQ affinity was set from userspace*/ - -#ifdef CONFIG_IRQ_PER_CPU -# define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU) -# define IRQ_NO_BALANCING_MASK (IRQ_PER_CPU | IRQ_NO_BALANCING) -#else -# define CHECK_IRQ_PER_CPU(var) 0 -# define IRQ_NO_BALANCING_MASK IRQ_NO_BALANCING -#endif - -struct proc_dir_entry; -struct msi_desc; - -/** - * struct irq_chip - hardware interrupt chip descriptor - * - * @name: name for /proc/interrupts - * @startup: start up the interrupt (defaults to ->enable if NULL) - * @shutdown: shut down the interrupt (defaults to ->disable if NULL) - * @enable: enable the interrupt (defaults to chip->unmask if NULL) - * @disable: disable the interrupt (defaults to chip->mask if NULL) - * @ack: start of a new interrupt - * @mask: mask an interrupt source - * @mask_ack: ack and mask an interrupt source - * @unmask: unmask an interrupt source - * @eoi: end of interrupt - chip level - * @end: end of interrupt - flow level - * @set_affinity: set the CPU affinity on SMP machines - * @retrigger: resend an IRQ to the CPU - * @set_type: set the flow type (IRQ_TYPE_LEVEL/etc.) of an IRQ - * @set_wake: enable/disable power-management wake-on of an IRQ - * - * @release: release function solely used by UML - * @typename: obsoleted by name, kept as migration helper - */ -struct irq_chip { - const char *name; - unsigned int (*startup)(unsigned int irq); - void (*shutdown)(unsigned int irq); - void (*enable)(unsigned int irq); - void (*disable)(unsigned int irq); - - void (*ack)(unsigned int irq); - void (*mask)(unsigned int irq); - void (*mask_ack)(unsigned int irq); - void (*unmask)(unsigned int irq); - void (*eoi)(unsigned int irq); - - void (*end)(unsigned int irq); - void (*set_affinity)(unsigned int irq, - const struct cpumask *dest); - int (*retrigger)(unsigned int irq); - int (*set_type)(unsigned int irq, unsigned int flow_type); - int (*set_wake)(unsigned int irq, unsigned int on); - - /* Currently used only by UML, might disappear one day.*/ -#ifdef CONFIG_IRQ_RELEASE_METHOD - void (*release)(unsigned int irq, void *dev_id); -#endif - /* - * For compatibility, ->typename is copied into ->name. - * Will disappear. - */ - const char *typename; -}; - -struct timer_rand_state; -struct irq_2_iommu; -/** - * struct irq_desc - interrupt descriptor - * @irq: interrupt number for this descriptor - * @timer_rand_state: pointer to timer rand state struct - * @kstat_irqs: irq stats per cpu - * @irq_2_iommu: iommu with this irq - * @handle_irq: highlevel irq-events handler [if NULL, __do_IRQ()] - * @chip: low level interrupt hardware access - * @msi_desc: MSI descriptor - * @handler_data: per-IRQ data for the irq_chip methods - * @chip_data: platform-specific per-chip private data for the chip - * methods, to allow shared chip implementations - * @action: the irq action chain - * @status: status information - * @depth: disable-depth, for nested irq_disable() calls - * @wake_depth: enable depth, for multiple set_irq_wake() callers - * @irq_count: stats field to detect stalled irqs - * @last_unhandled: aging timer for unhandled count - * @irqs_unhandled: stats field for spurious unhandled interrupts - * @lock: locking for SMP - * @affinity: IRQ affinity on SMP - * @cpu: cpu index useful for balancing - * @pending_mask: pending rebalanced interrupts - * @dir: /proc/irq/ procfs entry - * @name: flow handler name for /proc/interrupts output - */ -struct irq_desc { - unsigned int irq; -#ifdef CONFIG_SPARSE_IRQ - struct timer_rand_state *timer_rand_state; - unsigned int *kstat_irqs; -# ifdef CONFIG_INTR_REMAP - struct irq_2_iommu *irq_2_iommu; -# endif -#endif - irq_flow_handler_t handle_irq; - struct irq_chip *chip; - struct msi_desc *msi_desc; - void *handler_data; - void *chip_data; - struct irqaction *action; /* IRQ action list */ - unsigned int status; /* IRQ status */ - - unsigned int depth; /* nested irq disables */ - unsigned int wake_depth; /* nested wake enables */ - unsigned int irq_count; /* For detecting broken IRQs */ - unsigned long last_unhandled; /* Aging timer for unhandled count */ - unsigned int irqs_unhandled; - spinlock_t lock; -#ifdef CONFIG_SMP - cpumask_t affinity; - unsigned int cpu; -#endif -#ifdef CONFIG_GENERIC_PENDING_IRQ - cpumask_t pending_mask; -#endif -#ifdef CONFIG_PROC_FS - struct proc_dir_entry *dir; -#endif - const char *name; -} ____cacheline_internodealigned_in_smp; - -extern void arch_init_copy_chip_data(struct irq_desc *old_desc, - struct irq_desc *desc, int cpu); -extern void arch_free_chip_data(struct irq_desc *old_desc, struct irq_desc *desc); - -#ifndef CONFIG_SPARSE_IRQ -extern struct irq_desc irq_desc[NR_IRQS]; -#else /* CONFIG_SPARSE_IRQ */ -extern struct irq_desc *move_irq_desc(struct irq_desc *old_desc, int cpu); - -#define kstat_irqs_this_cpu(DESC) \ - ((DESC)->kstat_irqs[smp_processor_id()]) -#define kstat_incr_irqs_this_cpu(irqno, DESC) \ - ((DESC)->kstat_irqs[smp_processor_id()]++) - -#endif /* CONFIG_SPARSE_IRQ */ - -extern struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu); - -static inline struct irq_desc * -irq_remap_to_desc(unsigned int irq, struct irq_desc *desc) -{ -#ifdef CONFIG_NUMA_MIGRATE_IRQ_DESC - return irq_to_desc(irq); -#else - return desc; -#endif -} - -/* - * Migration helpers for obsolete names, they will go away: - */ -#define hw_interrupt_type irq_chip -typedef struct irq_chip hw_irq_controller; -#define no_irq_type no_irq_chip -typedef struct irq_desc irq_desc_t; - -/* - * Pick up the arch-dependent methods: - */ -#include <asm/hw_irq.h> - -extern int setup_irq(unsigned int irq, struct irqaction *new); - -#ifdef CONFIG_GENERIC_HARDIRQS - -#ifdef CONFIG_SMP - -#ifdef CONFIG_GENERIC_PENDING_IRQ - -void move_native_irq(int irq); -void move_masked_irq(int irq); - -#else /* CONFIG_GENERIC_PENDING_IRQ */ - -static inline void move_irq(int irq) -{ -} - -static inline void move_native_irq(int irq) -{ -} - -static inline void move_masked_irq(int irq) -{ -} - -#endif /* CONFIG_GENERIC_PENDING_IRQ */ - -#else /* CONFIG_SMP */ - -#define move_native_irq(x) -#define move_masked_irq(x) - -#endif /* CONFIG_SMP */ - -extern int no_irq_affinity; - -static inline int irq_balancing_disabled(unsigned int irq) -{ - struct irq_desc *desc; - - desc = irq_to_desc(irq); - return desc->status & IRQ_NO_BALANCING_MASK; -} - -/* Handle irq action chains: */ -extern int handle_IRQ_event(unsigned int irq, struct irqaction *action); - -/* - * Built-in IRQ handlers for various IRQ types, - * callable via desc->chip->handle_irq() - */ -extern void handle_level_irq(unsigned int irq, struct irq_desc *desc); -extern void handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc); -extern void handle_edge_irq(unsigned int irq, struct irq_desc *desc); -extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc); -extern void handle_percpu_irq(unsigned int irq, struct irq_desc *desc); -extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc); - -/* - * Monolithic do_IRQ implementation. - */ -#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ -extern unsigned int __do_IRQ(unsigned int irq); -#endif - -/* - * Architectures call this to let the generic IRQ layer - * handle an interrupt. If the descriptor is attached to an - * irqchip-style controller then we call the ->handle_irq() handler, - * and it calls __do_IRQ() if it's attached to an irqtype-style controller. - */ -static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc) -{ -#ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ - desc->handle_irq(irq, desc); -#else - if (likely(desc->handle_irq)) - desc->handle_irq(irq, desc); - else - __do_IRQ(irq); -#endif -} - -static inline void generic_handle_irq(unsigned int irq) -{ - generic_handle_irq_desc(irq, irq_to_desc(irq)); -} - -/* Handling of unhandled and spurious interrupts: */ -extern void note_interrupt(unsigned int irq, struct irq_desc *desc, - int action_ret); - -/* Resending of interrupts :*/ -void check_irq_resend(struct irq_desc *desc, unsigned int irq); - -/* Enable/disable irq debugging output: */ -extern int noirqdebug_setup(char *str); - -/* Checks whether the interrupt can be requested by request_irq(): */ -extern int can_request_irq(unsigned int irq, unsigned long irqflags); - -/* Dummy irq-chip implementations: */ -extern struct irq_chip no_irq_chip; -extern struct irq_chip dummy_irq_chip; - -extern void -set_irq_chip_and_handler(unsigned int irq, struct irq_chip *chip, - irq_flow_handler_t handle); -extern void -set_irq_chip_and_handler_name(unsigned int irq, struct irq_chip *chip, - irq_flow_handler_t handle, const char *name); - -extern void -__set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, - const char *name); - -/* caller has locked the irq_desc and both params are valid */ -static inline void __set_irq_handler_unlocked(int irq, - irq_flow_handler_t handler) -{ - struct irq_desc *desc; - - desc = irq_to_desc(irq); - desc->handle_irq = handler; -} - -/* - * Set a highlevel flow handler for a given IRQ: - */ -static inline void -set_irq_handler(unsigned int irq, irq_flow_handler_t handle) -{ - __set_irq_handler(irq, handle, 0, NULL); -} - -/* - * Set a highlevel chained flow handler for a given IRQ. - * (a chained handler is automatically enabled and set to - * IRQ_NOREQUEST and IRQ_NOPROBE) - */ -static inline void -set_irq_chained_handler(unsigned int irq, - irq_flow_handler_t handle) -{ - __set_irq_handler(irq, handle, 1, NULL); -} - -extern void set_irq_noprobe(unsigned int irq); -extern void set_irq_probe(unsigned int irq); - -/* Handle dynamic irq creation and destruction */ -extern unsigned int create_irq_nr(unsigned int irq_want); -extern int create_irq(void); -extern void destroy_irq(unsigned int irq); - -/* Test to see if a driver has successfully requested an irq */ -static inline int irq_has_action(unsigned int irq) -{ - struct irq_desc *desc = irq_to_desc(irq); - return desc->action != NULL; -} - -/* Dynamic irq helper functions */ -extern void dynamic_irq_init(unsigned int irq); -extern void dynamic_irq_cleanup(unsigned int irq); - -/* Set/get chip/data for an IRQ: */ -extern int set_irq_chip(unsigned int irq, struct irq_chip *chip); -extern int set_irq_data(unsigned int irq, void *data); -extern int set_irq_chip_data(unsigned int irq, void *data); -extern int set_irq_type(unsigned int irq, unsigned int type); -extern int set_irq_msi(unsigned int irq, struct msi_desc *entry); - -#define get_irq_chip(irq) (irq_to_desc(irq)->chip) -#define get_irq_chip_data(irq) (irq_to_desc(irq)->chip_data) -#define get_irq_data(irq) (irq_to_desc(irq)->handler_data) -#define get_irq_msi(irq) (irq_to_desc(irq)->msi_desc) - -#define get_irq_desc_chip(desc) ((desc)->chip) -#define get_irq_desc_chip_data(desc) ((desc)->chip_data) -#define get_irq_desc_data(desc) ((desc)->handler_data) -#define get_irq_desc_msi(desc) ((desc)->msi_desc) - -#endif /* CONFIG_GENERIC_HARDIRQS */ - -#endif /* !CONFIG_S390 */ - -#endif /* _LINUX_IRQ_H */ |