From: Paolo Bonzini Date: Tue, 16 Aug 2011 10:51:55 +0000 (-0400) Subject: api: remove arch-specific files X-Git-Tag: v0.6.5~52^2~9 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=cd5adc03f9482b11f04f5d0b1a40bdba48cab5e2;p=urcu.git api: remove arch-specific files No change since they were a subset of api_gcc.h. api_gcc.h is renamed to api.h, and configure need not create a symlink anymore. Signed-off-by: Mathieu Desnoyers --- diff --git a/configure.ac b/configure.ac index 2c8b219..c4bd10a 100644 --- a/configure.ac +++ b/configure.ac @@ -83,11 +83,6 @@ fi UATOMICSRC=urcu/uatomic/$ARCHTYPE.h ARCHSRC=urcu/arch/$ARCHTYPE.h -if test "x$ARCHTYPE" != xx86 -a "x$ARCHTYPE" != xppc; then - APISRC=tests/api_gcc.h -else - APISRC=tests/api_$ARCHTYPE.h -fi if test "$ARCHTYPE" == "armv7l"; then CFLAGS="-mcpu=cortex-a9 -mtune=cortex-a9 -O" fi @@ -241,7 +236,6 @@ CFLAGS=$saved_CFLAGS AC_CONFIG_LINKS([ urcu/arch.h:$ARCHSRC urcu/uatomic.h:$UATOMICSRC - tests/api.h:$APISRC ]) AC_CONFIG_FILES([ Makefile diff --git a/tests/api.h b/tests/api.h new file mode 100644 index 0000000..9874334 --- /dev/null +++ b/tests/api.h @@ -0,0 +1,1165 @@ + +#ifndef _INCLUDE_API_H +#define _INCLUDE_API_H + +#include "../config.h" + +/* + * common.h: Common Linux kernel-isms. + * + * 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; but version 2 of the License only due + * to code included from the Linux kernel. + * + * 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. + * + * Copyright (c) 2006 Paul E. McKenney, IBM. + * + * Much code taken from the Linux kernel. For such code, the option + * to redistribute under later versions of GPL might not be available. + */ + +#include + +#ifndef __always_inline +#define __always_inline inline +#endif + +#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) +#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) + +#ifdef __ASSEMBLY__ +# define stringify_in_c(...) __VA_ARGS__ +# define ASM_CONST(x) x +#else +/* This version of stringify will deal with commas... */ +# define __stringify_in_c(...) #__VA_ARGS__ +# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " +# define __ASM_CONST(x) x##UL +# define ASM_CONST(x) __ASM_CONST(x) +#endif + + +/* + * arch-i386.h: Expose x86 atomic instructions. 80486 and better only. + * + * 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, but version 2 only due to inclusion + * of Linux-kernel code. + * + * 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. + * + * Copyright (c) 2006 Paul E. McKenney, IBM. + * + * Much code taken from the Linux kernel. For such code, the option + * to redistribute under later versions of GPL might not be available. + */ + +/* + * Machine parameters. + */ + +/* #define CAA_CACHE_LINE_SIZE 64 */ +#define ____cacheline_internodealigned_in_smp \ + __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))) + +/* + * api_pthreads.h: API mapping to pthreads environment. + * + * 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. However, please note that much + * of the code in this file derives from the Linux kernel, and that such + * code may not be available except under GPLv2. + * + * 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. + * + * Copyright (c) 2006 Paul E. McKenney, IBM. + */ + +#include +#include +#include +#include +#include +#define __USE_GNU +#include +#include +#include +/* #include "atomic.h" */ + +/* + * Default machine parameters. + */ + +#ifndef CAA_CACHE_LINE_SIZE +/* #define CAA_CACHE_LINE_SIZE 128 */ +#endif /* #ifndef CAA_CACHE_LINE_SIZE */ + +/* + * Exclusive locking primitives. + */ + +typedef pthread_mutex_t spinlock_t; + +#define DEFINE_SPINLOCK(lock) spinlock_t lock = PTHREAD_MUTEX_INITIALIZER; +#define __SPIN_LOCK_UNLOCKED(lockp) PTHREAD_MUTEX_INITIALIZER + +static void spin_lock_init(spinlock_t *sp) +{ + if (pthread_mutex_init(sp, NULL) != 0) { + perror("spin_lock_init:pthread_mutex_init"); + exit(-1); + } +} + +static void spin_lock(spinlock_t *sp) +{ + if (pthread_mutex_lock(sp) != 0) { + perror("spin_lock:pthread_mutex_lock"); + exit(-1); + } +} + +static void spin_unlock(spinlock_t *sp) +{ + if (pthread_mutex_unlock(sp) != 0) { + perror("spin_unlock:pthread_mutex_unlock"); + exit(-1); + } +} + +#define spin_lock_irqsave(l, f) do { f = 1; spin_lock(l); } while (0) +#define spin_unlock_irqrestore(l, f) do { f = 0; spin_unlock(l); } while (0) + +/* + * Thread creation/destruction primitives. + */ + +typedef pthread_t thread_id_t; + +#define NR_THREADS 128 + +#define __THREAD_ID_MAP_EMPTY ((thread_id_t) 0) +#define __THREAD_ID_MAP_WAITING ((thread_id_t) 1) +thread_id_t __thread_id_map[NR_THREADS]; +spinlock_t __thread_id_map_mutex; + +#define for_each_thread(t) \ + for (t = 0; t < NR_THREADS; t++) + +#define for_each_running_thread(t) \ + for (t = 0; t < NR_THREADS; t++) \ + if ((__thread_id_map[t] != __THREAD_ID_MAP_EMPTY) && \ + (__thread_id_map[t] != __THREAD_ID_MAP_WAITING)) + +#define for_each_tid(t, tid) \ + for (t = 0; t < NR_THREADS; t++) \ + if ((((tid) = __thread_id_map[t]) != __THREAD_ID_MAP_EMPTY) && \ + ((tid) != __THREAD_ID_MAP_WAITING)) + +pthread_key_t thread_id_key; + +static int __smp_thread_id(void) +{ + int i; + thread_id_t tid = pthread_self(); + + for (i = 0; i < NR_THREADS; i++) { + if (__thread_id_map[i] == tid) { + long v = i + 1; /* must be non-NULL. */ + + if (pthread_setspecific(thread_id_key, (void *)v) != 0) { + perror("pthread_setspecific"); + exit(-1); + } + return i; + } + } + spin_lock(&__thread_id_map_mutex); + for (i = 0; i < NR_THREADS; i++) { + if (__thread_id_map[i] == tid) + spin_unlock(&__thread_id_map_mutex); + return i; + } + spin_unlock(&__thread_id_map_mutex); + fprintf(stderr, "smp_thread_id: Rogue thread, id: %d(%#x)\n", + (int)tid, (int)tid); + exit(-1); +} + +static int smp_thread_id(void) +{ + void *id; + + id = pthread_getspecific(thread_id_key); + if (id == NULL) + return __smp_thread_id(); + return (long)(id - 1); +} + +static thread_id_t create_thread(void *(*func)(void *), void *arg) +{ + thread_id_t tid; + int i; + + spin_lock(&__thread_id_map_mutex); + for (i = 0; i < NR_THREADS; i++) { + if (__thread_id_map[i] == __THREAD_ID_MAP_EMPTY) + break; + } + if (i >= NR_THREADS) { + spin_unlock(&__thread_id_map_mutex); + fprintf(stderr, "Thread limit of %d exceeded!\n", NR_THREADS); + exit(-1); + } + __thread_id_map[i] = __THREAD_ID_MAP_WAITING; + spin_unlock(&__thread_id_map_mutex); + if (pthread_create(&tid, NULL, func, arg) != 0) { + perror("create_thread:pthread_create"); + exit(-1); + } + __thread_id_map[i] = tid; + return tid; +} + +static void *wait_thread(thread_id_t tid) +{ + int i; + void *vp; + + for (i = 0; i < NR_THREADS; i++) { + if (__thread_id_map[i] == tid) + break; + } + if (i >= NR_THREADS){ + fprintf(stderr, "wait_thread: bad tid = %d(%#x)\n", + (int)tid, (int)tid); + exit(-1); + } + if (pthread_join(tid, &vp) != 0) { + perror("wait_thread:pthread_join"); + exit(-1); + } + __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; + return vp; +} + +static void wait_all_threads(void) +{ + int i; + thread_id_t tid; + + for (i = 1; i < NR_THREADS; i++) { + tid = __thread_id_map[i]; + if (tid != __THREAD_ID_MAP_EMPTY && + tid != __THREAD_ID_MAP_WAITING) + (void)wait_thread(tid); + } +} + +#ifndef HAVE_CPU_SET_T +typedef unsigned long cpu_set_t; +# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0) +# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0) +#endif + +static void run_on(int cpu) +{ +#if HAVE_SCHED_SETAFFINITY + cpu_set_t mask; + + CPU_ZERO(&mask); + CPU_SET(cpu, &mask); +#if SCHED_SETAFFINITY_ARGS == 2 + sched_setaffinity(0, &mask); +#else + sched_setaffinity(0, sizeof(mask), &mask); +#endif +#endif /* HAVE_SCHED_SETAFFINITY */ +} + +/* + * timekeeping -- very crude -- should use MONOTONIC... + */ + +long long get_microseconds(void) +{ + struct timeval tv; + + if (gettimeofday(&tv, NULL) != 0) + abort(); + return ((long long)tv.tv_sec) * 1000000LL + (long long)tv.tv_usec; +} + +/* + * Per-thread variables. + */ + +#define DEFINE_PER_THREAD(type, name) \ + struct { \ + __typeof__(type) v \ + __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ + } __per_thread_##name[NR_THREADS]; +#define DECLARE_PER_THREAD(type, name) extern DEFINE_PER_THREAD(type, name) + +#define per_thread(name, thread) __per_thread_##name[thread].v +#define __get_thread_var(name) per_thread(name, smp_thread_id()) + +#define init_per_thread(name, v) \ + do { \ + int __i_p_t_i; \ + for (__i_p_t_i = 0; __i_p_t_i < NR_THREADS; __i_p_t_i++) \ + per_thread(name, __i_p_t_i) = v; \ + } while (0) + +/* + * CPU traversal primitives. + */ + +#ifndef NR_CPUS +#define NR_CPUS 16 +#endif /* #ifndef NR_CPUS */ + +#define for_each_possible_cpu(cpu) \ + for (cpu = 0; cpu < NR_CPUS; cpu++) +#define for_each_online_cpu(cpu) \ + for (cpu = 0; cpu < NR_CPUS; cpu++) + +/* + * Per-CPU variables. + */ + +#define DEFINE_PER_CPU(type, name) \ + struct { \ + __typeof__(type) v \ + __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ + } __per_cpu_##name[NR_CPUS] +#define DECLARE_PER_CPU(type, name) extern DEFINE_PER_CPU(type, name) + +DEFINE_PER_THREAD(int, smp_processor_id); + +#define per_cpu(name, thread) __per_cpu_##name[thread].v +#define __get_cpu_var(name) per_cpu(name, smp_processor_id()) + +#define init_per_cpu(name, v) \ + do { \ + int __i_p_c_i; \ + for (__i_p_c_i = 0; __i_p_c_i < NR_CPUS; __i_p_c_i++) \ + per_cpu(name, __i_p_c_i) = v; \ + } while (0) + +/* + * CPU state checking (crowbarred). + */ + +#define idle_cpu(cpu) 0 +#define in_softirq() 1 +#define hardirq_count() 0 +#define PREEMPT_SHIFT 0 +#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) +#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) +#define PREEMPT_BITS 8 +#define SOFTIRQ_BITS 8 + +/* + * CPU hotplug. + */ + +struct notifier_block { + int (*notifier_call)(struct notifier_block *, unsigned long, void *); + struct notifier_block *next; + int priority; +}; + +#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ +#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ +#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ +#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ +#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ +#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ +#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, + * not handling interrupts, soon dead */ +#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug + * lock is dropped */ + +/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend + * operation in progress + */ +#define CPU_TASKS_FROZEN 0x0010 + +#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) +#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) +#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) +#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) +#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) +#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) +#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) + +/* Hibernation and suspend events */ +#define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ +#define PM_POST_HIBERNATION 0x0002 /* Hibernation finished */ +#define PM_SUSPEND_PREPARE 0x0003 /* Going to suspend the system */ +#define PM_POST_SUSPEND 0x0004 /* Suspend finished */ +#define PM_RESTORE_PREPARE 0x0005 /* Going to restore a saved image */ +#define PM_POST_RESTORE 0x0006 /* Restore failed */ + +#define NOTIFY_DONE 0x0000 /* Don't care */ +#define NOTIFY_OK 0x0001 /* Suits me */ +#define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ +#define NOTIFY_BAD (NOTIFY_STOP_MASK|0x0002) + /* Bad/Veto action */ +/* + * Clean way to return from the notifier and stop further calls. + */ +#define NOTIFY_STOP (NOTIFY_OK|NOTIFY_STOP_MASK) + +/* + * Bug checks. + */ + +#define BUG_ON(c) do { if (!(c)) abort(); } while (0) + +/* + * Initialization -- Must be called before calling any primitives. + */ + +static void smp_init(void) +{ + int i; + + spin_lock_init(&__thread_id_map_mutex); + __thread_id_map[0] = pthread_self(); + for (i = 1; i < NR_THREADS; i++) + __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; + init_per_thread(smp_processor_id, 0); + if (pthread_key_create(&thread_id_key, NULL) != 0) { + perror("pthread_key_create"); + exit(-1); + } +} + +/* Taken from the Linux kernel source tree, so GPLv2-only!!! */ + +#ifndef _LINUX_LIST_H +#define _LINUX_LIST_H + +#define LIST_POISON1 ((void *) 0x00100100) +#define LIST_POISON2 ((void *) 0x00200200) + +#if 0 +/* + * Simple doubly linked list implementation. + * + * Some of the internal functions ("__xxx") are useful when + * manipulating whole lists rather than single entries, as + * sometimes we already know the next/prev entries and we can + * generate better code by using them directly rather than + * using the generic single-entry routines. + */ + +struct cds_list_head { + struct cds_list_head *next, *prev; +}; + +#define CDS_LIST_HEAD_INIT(name) { &(name), &(name) } + +#define CDS_LIST_HEAD(name) \ + struct cds_list_head name = CDS_LIST_HEAD_INIT(name) + +static inline void CDS_INIT_LIST_HEAD(struct cds_list_head *list) +{ + list->next = list; + list->prev = list; +} + +/* + * Insert a new entry between two known consecutive entries. + * + * This is only for internal list manipulation where we know + * the prev/next entries already! + */ +#ifndef CONFIG_DEBUG_LIST +static inline void __cds_list_add(struct cds_list_head *new, + struct cds_list_head *prev, + struct cds_list_head *next) +{ + next->prev = new; + new->next = next; + new->prev = prev; + prev->next = new; +} +#else +extern void __cds_list_add(struct cds_list_head *new, + struct cds_list_head *prev, + struct cds_list_head *next); +#endif + +/** + * cds_list_add - add a new entry + * @new: new entry to be added + * @head: list head to add it after + * + * Insert a new entry after the specified head. + * This is good for implementing stacks. + */ +static inline void cds_list_add(struct cds_list_head *new, struct cds_list_head *head) +{ + __cds_list_add(new, head, head->next); +} + + +/** + * cds_list_add_tail - add a new entry + * @new: new entry to be added + * @head: list head to add it before + * + * Insert a new entry before the specified head. + * This is useful for implementing queues. + */ +static inline void cds_list_add_tail(struct cds_list_head *new, struct cds_list_head *head) +{ + __cds_list_add(new, head->prev, head); +} + +/* + * Delete a list entry by making the prev/next entries + * point to each other. + * + * This is only for internal list manipulation where we know + * the prev/next entries already! + */ +static inline void __cds_list_del(struct cds_list_head * prev, struct cds_list_head * next) +{ + next->prev = prev; + prev->next = next; +} + +/** + * cds_list_del - deletes entry from list. + * @entry: the element to delete from the list. + * Note: cds_list_empty() on entry does not return true after this, the entry is + * in an undefined state. + */ +#ifndef CONFIG_DEBUG_LIST +static inline void cds_list_del(struct cds_list_head *entry) +{ + __cds_list_del(entry->prev, entry->next); + entry->next = LIST_POISON1; + entry->prev = LIST_POISON2; +} +#else +extern void cds_list_del(struct cds_list_head *entry); +#endif + +/** + * cds_list_replace - replace old entry by new one + * @old : the element to be replaced + * @new : the new element to insert + * + * If @old was empty, it will be overwritten. + */ +static inline void cds_list_replace(struct cds_list_head *old, + struct cds_list_head *new) +{ + new->next = old->next; + new->next->prev = new; + new->prev = old->prev; + new->prev->next = new; +} + +static inline void cds_list_replace_init(struct cds_list_head *old, + struct cds_list_head *new) +{ + cds_list_replace(old, new); + CDS_INIT_LIST_HEAD(old); +} + +/** + * cds_list_del_init - deletes entry from list and reinitialize it. + * @entry: the element to delete from the list. + */ +static inline void cds_list_del_init(struct cds_list_head *entry) +{ + __cds_list_del(entry->prev, entry->next); + CDS_INIT_LIST_HEAD(entry); +} + +/** + * cds_list_move - delete from one list and add as another's head + * @list: the entry to move + * @head: the head that will precede our entry + */ +static inline void cds_list_move(struct cds_list_head *list, struct cds_list_head *head) +{ + __cds_list_del(list->prev, list->next); + cds_list_add(list, head); +} + +/** + * cds_list_move_tail - delete from one list and add as another's tail + * @list: the entry to move + * @head: the head that will follow our entry + */ +static inline void cds_list_move_tail(struct cds_list_head *list, + struct cds_list_head *head) +{ + __cds_list_del(list->prev, list->next); + cds_list_add_tail(list, head); +} + +/** + * list_is_last - tests whether @list is the last entry in list @head + * @list: the entry to test + * @head: the head of the list + */ +static inline int list_is_last(const struct cds_list_head *list, + const struct cds_list_head *head) +{ + return list->next == head; +} + +/** + * cds_list_empty - tests whether a list is empty + * @head: the list to test. + */ +static inline int cds_list_empty(const struct cds_list_head *head) +{ + return head->next == head; +} + +/** + * cds_list_empty_careful - tests whether a list is empty and not being modified + * @head: the list to test + * + * Description: + * tests whether a list is empty _and_ checks that no other CPU might be + * in the process of modifying either member (next or prev) + * + * NOTE: using cds_list_empty_careful() without synchronization + * can only be safe if the only activity that can happen + * to the list entry is cds_list_del_init(). Eg. it cannot be used + * if another CPU could re-list_add() it. + */ +static inline int cds_list_empty_careful(const struct cds_list_head *head) +{ + struct cds_list_head *next = head->next; + return (next == head) && (next == head->prev); +} + +/** + * list_is_singular - tests whether a list has just one entry. + * @head: the list to test. + */ +static inline int list_is_singular(const struct cds_list_head *head) +{ + return !list_empty(head) && (head->next == head->prev); +} + +static inline void __list_cut_position(struct cds_list_head *list, + struct cds_list_head *head, struct cds_list_head *entry) +{ + struct cds_list_head *new_first = entry->next; + list->next = head->next; + list->next->prev = list; + list->prev = entry; + entry->next = list; + head->next = new_first; + new_first->prev = head; +} + +/** + * list_cut_position - cut a list into two + * @list: a new list to add all removed entries + * @head: a list with entries + * @entry: an entry within head, could be the head itself + * and if so we won't cut the list + * + * This helper moves the initial part of @head, up to and + * including @entry, from @head to @list. You should + * pass on @entry an element you know is on @head. @list + * should be an empty list or a list you do not care about + * losing its data. + * + */ +static inline void list_cut_position(struct cds_list_head *list, + struct cds_list_head *head, struct cds_list_head *entry) +{ + if (cds_list_empty(head)) + return; + if (list_is_singular(head) && + (head->next != entry && head != entry)) + return; + if (entry == head) + CDS_INIT_LIST_HEAD(list); + else + __list_cut_position(list, head, entry); +} + +static inline void __cds_list_splice(const struct cds_list_head *list, + struct cds_list_head *prev, + struct cds_list_head *next) +{ + struct cds_list_head *first = list->next; + struct cds_list_head *last = list->prev; + + first->prev = prev; + prev->next = first; + + last->next = next; + next->prev = last; +} + +/** + * cds_list_splice - join two lists, this is designed for stacks + * @list: the new list to add. + * @head: the place to add it in the first list. + */ +static inline void cds_list_splice(const struct cds_list_head *list, + struct cds_list_head *head) +{ + if (!cds_list_empty(list)) + __cds_list_splice(list, head, head->next); +} + +/** + * cds_list_splice_tail - join two lists, each list being a queue + * @list: the new list to add. + * @head: the place to add it in the first list. + */ +static inline void cds_list_splice_tail(struct cds_list_head *list, + struct cds_list_head *head) +{ + if (!cds_list_empty(list)) + __cds_list_splice(list, head->prev, head); +} + +/** + * cds_list_splice_init - join two lists and reinitialise the emptied list. + * @list: the new list to add. + * @head: the place to add it in the first list. + * + * The list at @list is reinitialised + */ +static inline void cds_list_splice_init(struct cds_list_head *list, + struct cds_list_head *head) +{ + if (!cds_list_empty(list)) { + __cds_list_splice(list, head, head->next); + CDS_INIT_LIST_HEAD(list); + } +} + +/** + * cds_list_splice_tail_init - join two lists and reinitialise the emptied list + * @list: the new list to add. + * @head: the place to add it in the first list. + * + * Each of the lists is a queue. + * The list at @list is reinitialised + */ +static inline void cds_list_splice_tail_init(struct cds_list_head *list, + struct cds_list_head *head) +{ + if (!cds_list_empty(list)) { + __cds_list_splice(list, head->prev, head); + CDS_INIT_LIST_HEAD(list); + } +} + +/** + * cds_list_entry - get the struct for this entry + * @ptr: the &struct cds_list_head pointer. + * @type: the type of the struct this is embedded in. + * @member: the name of the list_struct within the struct. + */ +#define cds_list_entry(ptr, type, member) \ + caa_container_of(ptr, type, member) + +/** + * list_first_entry - 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 list is expected to be not empty. + */ +#define list_first_entry(ptr, type, member) \ + cds_list_entry((ptr)->next, type, member) + +/** + * cds_list_for_each - iterate over a list + * @pos: the &struct cds_list_head to use as a loop cursor. + * @head: the head for your list. + */ +#define cds_list_for_each(pos, head) \ + for (pos = (head)->next; prefetch(pos->next), pos != (head); \ + pos = pos->next) + +/** + * __cds_list_for_each - iterate over a list + * @pos: the &struct cds_list_head to use as a loop cursor. + * @head: the head for your list. + * + * This variant differs from cds_list_for_each() in that it's the + * simplest possible list iteration code, no prefetching is done. + * Use this for code that knows the list to be very short (empty + * or 1 entry) most of the time. + */ +#define __cds_list_for_each(pos, head) \ + for (pos = (head)->next; pos != (head); pos = pos->next) + +/** + * cds_list_for_each_prev - iterate over a list backwards + * @pos: the &struct cds_list_head to use as a loop cursor. + * @head: the head for your list. + */ +#define cds_list_for_each_prev(pos, head) \ + for (pos = (head)->prev; prefetch(pos->prev), pos != (head); \ + pos = pos->prev) + +/** + * cds_list_for_each_safe - iterate over a list safe against removal of list entry + * @pos: the &struct cds_list_head to use as a loop cursor. + * @n: another &struct cds_list_head to use as temporary storage + * @head: the head for your list. + */ +#define cds_list_for_each_safe(pos, n, head) \ + for (pos = (head)->next, n = pos->next; pos != (head); \ + pos = n, n = pos->next) + +/** + * cds_list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry + * @pos: the &struct cds_list_head to use as a loop cursor. + * @n: another &struct cds_list_head to use as temporary storage + * @head: the head for your list. + */ +#define cds_list_for_each_prev_safe(pos, n, head) \ + for (pos = (head)->prev, n = pos->prev; \ + prefetch(pos->prev), pos != (head); \ + pos = n, n = pos->prev) + +/** + * cds_list_for_each_entry - iterate over list of given type + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + */ +#define cds_list_for_each_entry(pos, head, member) \ + for (pos = cds_list_entry((head)->next, typeof(*pos), member); \ + prefetch(pos->member.next), &pos->member != (head); \ + pos = cds_list_entry(pos->member.next, typeof(*pos), member)) + +/** + * cds_list_for_each_entry_reverse - iterate backwards over list of given type. + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + */ +#define cds_list_for_each_entry_reverse(pos, head, member) \ + for (pos = cds_list_entry((head)->prev, typeof(*pos), member); \ + prefetch(pos->member.prev), &pos->member != (head); \ + pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) + +/** + * list_prepare_entry - prepare a pos entry for use in cds_list_for_each_entry_continue() + * @pos: the type * to use as a start point + * @head: the head of the list + * @member: the name of the list_struct within the struct. + * + * Prepares a pos entry for use as a start point in cds_list_for_each_entry_continue(). + */ +#define list_prepare_entry(pos, head, member) \ + ((pos) ? : cds_list_entry(head, typeof(*pos), member)) + +/** + * cds_list_for_each_entry_continue - continue iteration over list of given type + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Continue to iterate over list of given type, continuing after + * the current position. + */ +#define cds_list_for_each_entry_continue(pos, head, member) \ + for (pos = cds_list_entry(pos->member.next, typeof(*pos), member); \ + prefetch(pos->member.next), &pos->member != (head); \ + pos = cds_list_entry(pos->member.next, typeof(*pos), member)) + +/** + * cds_list_for_each_entry_continue_reverse - iterate backwards from the given point + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Start to iterate over list of given type backwards, continuing after + * the current position. + */ +#define cds_list_for_each_entry_continue_reverse(pos, head, member) \ + for (pos = cds_list_entry(pos->member.prev, typeof(*pos), member); \ + prefetch(pos->member.prev), &pos->member != (head); \ + pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) + +/** + * cds_list_for_each_entry_from - iterate over list of given type from the current point + * @pos: the type * to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Iterate over list of given type, continuing from current position. + */ +#define cds_list_for_each_entry_from(pos, head, member) \ + for (; prefetch(pos->member.next), &pos->member != (head); \ + pos = cds_list_entry(pos->member.next, typeof(*pos), member)) + +/** + * cds_list_for_each_entry_safe - iterate over list of given type safe against removal of list entry + * @pos: the type * to use as a loop cursor. + * @n: another type * to use as temporary storage + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + */ +#define cds_list_for_each_entry_safe(pos, n, head, member) \ + for (pos = cds_list_entry((head)->next, typeof(*pos), member), \ + n = cds_list_entry(pos->member.next, typeof(*pos), member); \ + &pos->member != (head); \ + pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) + +/** + * cds_list_for_each_entry_safe_continue + * @pos: the type * to use as a loop cursor. + * @n: another type * to use as temporary storage + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Iterate over list of given type, continuing after current point, + * safe against removal of list entry. + */ +#define cds_list_for_each_entry_safe_continue(pos, n, head, member) \ + for (pos = cds_list_entry(pos->member.next, typeof(*pos), member), \ + n = cds_list_entry(pos->member.next, typeof(*pos), member); \ + &pos->member != (head); \ + pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) + +/** + * cds_list_for_each_entry_safe_from + * @pos: the type * to use as a loop cursor. + * @n: another type * to use as temporary storage + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Iterate over list of given type from current point, safe against + * removal of list entry. + */ +#define cds_list_for_each_entry_safe_from(pos, n, head, member) \ + for (n = cds_list_entry(pos->member.next, typeof(*pos), member); \ + &pos->member != (head); \ + pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) + +/** + * cds_list_for_each_entry_safe_reverse + * @pos: the type * to use as a loop cursor. + * @n: another type * to use as temporary storage + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Iterate backwards over list of given type, safe against removal + * of list entry. + */ +#define cds_list_for_each_entry_safe_reverse(pos, n, head, member) \ + for (pos = cds_list_entry((head)->prev, typeof(*pos), member), \ + n = cds_list_entry(pos->member.prev, typeof(*pos), member); \ + &pos->member != (head); \ + pos = n, n = cds_list_entry(n->member.prev, typeof(*n), member)) + +#endif //0 + +/* + * Double linked lists with a single pointer list head. + * Mostly useful for hash tables where the two pointer list head is + * too wasteful. + * You lose the ability to access the tail in O(1). + */ + +struct cds_hlist_head { + struct cds_hlist_node *first; +}; + +struct cds_hlist_node { + struct cds_hlist_node *next, **pprev; +}; + +#define HLIST_HEAD_INIT { .first = NULL } +#define HLIST_HEAD(name) struct cds_hlist_head name = { .first = NULL } +#define CDS_INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL) +static inline void INIT_HLIST_NODE(struct cds_hlist_node *h) +{ + h->next = NULL; + h->pprev = NULL; +} + +static inline int hlist_unhashed(const struct cds_hlist_node *h) +{ + return !h->pprev; +} + +static inline int hlist_empty(const struct cds_hlist_head *h) +{ + return !h->first; +} + +static inline void __cds_hlist_del(struct cds_hlist_node *n) +{ + struct cds_hlist_node *next = n->next; + struct cds_hlist_node **pprev = n->pprev; + *pprev = next; + if (next) + next->pprev = pprev; +} + +static inline void cds_hlist_del(struct cds_hlist_node *n) +{ + __cds_hlist_del(n); + n->next = LIST_POISON1; + n->pprev = LIST_POISON2; +} + +static inline void cds_hlist_del_init(struct cds_hlist_node *n) +{ + if (!hlist_unhashed(n)) { + __cds_hlist_del(n); + INIT_HLIST_NODE(n); + } +} + +static inline void cds_hlist_add_head(struct cds_hlist_node *n, struct cds_hlist_head *h) +{ + struct cds_hlist_node *first = h->first; + n->next = first; + if (first) + first->pprev = &n->next; + h->first = n; + n->pprev = &h->first; +} + +/* next must be != NULL */ +static inline void hlist_add_before(struct cds_hlist_node *n, + struct cds_hlist_node *next) +{ + n->pprev = next->pprev; + n->next = next; + next->pprev = &n->next; + *(n->pprev) = n; +} + +static inline void hlist_add_after(struct cds_hlist_node *n, + struct cds_hlist_node *next) +{ + next->next = n->next; + n->next = next; + next->pprev = &n->next; + + if(next->next) + next->next->pprev = &next->next; +} + +/* + * Move a list from one list head to another. Fixup the pprev + * reference of the first entry if it exists. + */ +static inline void hlist_move_list(struct cds_hlist_head *old, + struct cds_hlist_head *new) +{ + new->first = old->first; + if (new->first) + new->first->pprev = &new->first; + old->first = NULL; +} + +#define cds_hlist_entry(ptr, type, member) caa_container_of(ptr,type,member) + +#define cds_hlist_for_each(pos, head) \ + for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \ + pos = pos->next) + +#define cds_hlist_for_each_safe(pos, n, head) \ + for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \ + pos = n) + +/** + * cds_hlist_for_each_entry - iterate over list of given type + * @tpos: the type * to use as a loop cursor. + * @pos: the &struct cds_hlist_node to use as a loop cursor. + * @head: the head for your list. + * @member: the name of the cds_hlist_node within the struct. + */ +#define cds_hlist_for_each_entry(tpos, pos, head, member) \ + for (pos = (head)->first; \ + pos && ({ prefetch(pos->next); 1;}) && \ + ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ + pos = pos->next) + +/** + * cds_hlist_for_each_entry_continue - iterate over a hlist continuing after current point + * @tpos: the type * to use as a loop cursor. + * @pos: the &struct cds_hlist_node to use as a loop cursor. + * @member: the name of the cds_hlist_node within the struct. + */ +#define cds_hlist_for_each_entry_continue(tpos, pos, member) \ + for (pos = (pos)->next; \ + pos && ({ prefetch(pos->next); 1;}) && \ + ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ + pos = pos->next) + +/** + * cds_hlist_for_each_entry_from - iterate over a hlist continuing from current point + * @tpos: the type * to use as a loop cursor. + * @pos: the &struct cds_hlist_node to use as a loop cursor. + * @member: the name of the cds_hlist_node within the struct. + */ +#define cds_hlist_for_each_entry_from(tpos, pos, member) \ + for (; pos && ({ prefetch(pos->next); 1;}) && \ + ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ + pos = pos->next) + +/** + * cds_hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry + * @tpos: the type * to use as a loop cursor. + * @pos: the &struct cds_hlist_node to use as a loop cursor. + * @n: another &struct cds_hlist_node to use as temporary storage + * @head: the head for your list. + * @member: the name of the cds_hlist_node within the struct. + */ +#define cds_hlist_for_each_entry_safe(tpos, pos, n, head, member) \ + for (pos = (head)->first; \ + pos && ({ n = pos->next; 1; }) && \ + ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ + pos = n) + +#endif + +#endif diff --git a/tests/api_gcc.h b/tests/api_gcc.h deleted file mode 100644 index 9874334..0000000 --- a/tests/api_gcc.h +++ /dev/null @@ -1,1165 +0,0 @@ - -#ifndef _INCLUDE_API_H -#define _INCLUDE_API_H - -#include "../config.h" - -/* - * common.h: Common Linux kernel-isms. - * - * 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; but version 2 of the License only due - * to code included from the Linux kernel. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ - -#include - -#ifndef __always_inline -#define __always_inline inline -#endif - -#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) -#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) - -#ifdef __ASSEMBLY__ -# define stringify_in_c(...) __VA_ARGS__ -# define ASM_CONST(x) x -#else -/* This version of stringify will deal with commas... */ -# define __stringify_in_c(...) #__VA_ARGS__ -# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " -# define __ASM_CONST(x) x##UL -# define ASM_CONST(x) __ASM_CONST(x) -#endif - - -/* - * arch-i386.h: Expose x86 atomic instructions. 80486 and better only. - * - * 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, but version 2 only due to inclusion - * of Linux-kernel code. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ - -/* - * Machine parameters. - */ - -/* #define CAA_CACHE_LINE_SIZE 64 */ -#define ____cacheline_internodealigned_in_smp \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))) - -/* - * api_pthreads.h: API mapping to pthreads environment. - * - * 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. However, please note that much - * of the code in this file derives from the Linux kernel, and that such - * code may not be available except under GPLv2. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - */ - -#include -#include -#include -#include -#include -#define __USE_GNU -#include -#include -#include -/* #include "atomic.h" */ - -/* - * Default machine parameters. - */ - -#ifndef CAA_CACHE_LINE_SIZE -/* #define CAA_CACHE_LINE_SIZE 128 */ -#endif /* #ifndef CAA_CACHE_LINE_SIZE */ - -/* - * Exclusive locking primitives. - */ - -typedef pthread_mutex_t spinlock_t; - -#define DEFINE_SPINLOCK(lock) spinlock_t lock = PTHREAD_MUTEX_INITIALIZER; -#define __SPIN_LOCK_UNLOCKED(lockp) PTHREAD_MUTEX_INITIALIZER - -static void spin_lock_init(spinlock_t *sp) -{ - if (pthread_mutex_init(sp, NULL) != 0) { - perror("spin_lock_init:pthread_mutex_init"); - exit(-1); - } -} - -static void spin_lock(spinlock_t *sp) -{ - if (pthread_mutex_lock(sp) != 0) { - perror("spin_lock:pthread_mutex_lock"); - exit(-1); - } -} - -static void spin_unlock(spinlock_t *sp) -{ - if (pthread_mutex_unlock(sp) != 0) { - perror("spin_unlock:pthread_mutex_unlock"); - exit(-1); - } -} - -#define spin_lock_irqsave(l, f) do { f = 1; spin_lock(l); } while (0) -#define spin_unlock_irqrestore(l, f) do { f = 0; spin_unlock(l); } while (0) - -/* - * Thread creation/destruction primitives. - */ - -typedef pthread_t thread_id_t; - -#define NR_THREADS 128 - -#define __THREAD_ID_MAP_EMPTY ((thread_id_t) 0) -#define __THREAD_ID_MAP_WAITING ((thread_id_t) 1) -thread_id_t __thread_id_map[NR_THREADS]; -spinlock_t __thread_id_map_mutex; - -#define for_each_thread(t) \ - for (t = 0; t < NR_THREADS; t++) - -#define for_each_running_thread(t) \ - for (t = 0; t < NR_THREADS; t++) \ - if ((__thread_id_map[t] != __THREAD_ID_MAP_EMPTY) && \ - (__thread_id_map[t] != __THREAD_ID_MAP_WAITING)) - -#define for_each_tid(t, tid) \ - for (t = 0; t < NR_THREADS; t++) \ - if ((((tid) = __thread_id_map[t]) != __THREAD_ID_MAP_EMPTY) && \ - ((tid) != __THREAD_ID_MAP_WAITING)) - -pthread_key_t thread_id_key; - -static int __smp_thread_id(void) -{ - int i; - thread_id_t tid = pthread_self(); - - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) { - long v = i + 1; /* must be non-NULL. */ - - if (pthread_setspecific(thread_id_key, (void *)v) != 0) { - perror("pthread_setspecific"); - exit(-1); - } - return i; - } - } - spin_lock(&__thread_id_map_mutex); - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) - spin_unlock(&__thread_id_map_mutex); - return i; - } - spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "smp_thread_id: Rogue thread, id: %d(%#x)\n", - (int)tid, (int)tid); - exit(-1); -} - -static int smp_thread_id(void) -{ - void *id; - - id = pthread_getspecific(thread_id_key); - if (id == NULL) - return __smp_thread_id(); - return (long)(id - 1); -} - -static thread_id_t create_thread(void *(*func)(void *), void *arg) -{ - thread_id_t tid; - int i; - - spin_lock(&__thread_id_map_mutex); - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == __THREAD_ID_MAP_EMPTY) - break; - } - if (i >= NR_THREADS) { - spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "Thread limit of %d exceeded!\n", NR_THREADS); - exit(-1); - } - __thread_id_map[i] = __THREAD_ID_MAP_WAITING; - spin_unlock(&__thread_id_map_mutex); - if (pthread_create(&tid, NULL, func, arg) != 0) { - perror("create_thread:pthread_create"); - exit(-1); - } - __thread_id_map[i] = tid; - return tid; -} - -static void *wait_thread(thread_id_t tid) -{ - int i; - void *vp; - - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) - break; - } - if (i >= NR_THREADS){ - fprintf(stderr, "wait_thread: bad tid = %d(%#x)\n", - (int)tid, (int)tid); - exit(-1); - } - if (pthread_join(tid, &vp) != 0) { - perror("wait_thread:pthread_join"); - exit(-1); - } - __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; - return vp; -} - -static void wait_all_threads(void) -{ - int i; - thread_id_t tid; - - for (i = 1; i < NR_THREADS; i++) { - tid = __thread_id_map[i]; - if (tid != __THREAD_ID_MAP_EMPTY && - tid != __THREAD_ID_MAP_WAITING) - (void)wait_thread(tid); - } -} - -#ifndef HAVE_CPU_SET_T -typedef unsigned long cpu_set_t; -# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0) -# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0) -#endif - -static void run_on(int cpu) -{ -#if HAVE_SCHED_SETAFFINITY - cpu_set_t mask; - - CPU_ZERO(&mask); - CPU_SET(cpu, &mask); -#if SCHED_SETAFFINITY_ARGS == 2 - sched_setaffinity(0, &mask); -#else - sched_setaffinity(0, sizeof(mask), &mask); -#endif -#endif /* HAVE_SCHED_SETAFFINITY */ -} - -/* - * timekeeping -- very crude -- should use MONOTONIC... - */ - -long long get_microseconds(void) -{ - struct timeval tv; - - if (gettimeofday(&tv, NULL) != 0) - abort(); - return ((long long)tv.tv_sec) * 1000000LL + (long long)tv.tv_usec; -} - -/* - * Per-thread variables. - */ - -#define DEFINE_PER_THREAD(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ - } __per_thread_##name[NR_THREADS]; -#define DECLARE_PER_THREAD(type, name) extern DEFINE_PER_THREAD(type, name) - -#define per_thread(name, thread) __per_thread_##name[thread].v -#define __get_thread_var(name) per_thread(name, smp_thread_id()) - -#define init_per_thread(name, v) \ - do { \ - int __i_p_t_i; \ - for (__i_p_t_i = 0; __i_p_t_i < NR_THREADS; __i_p_t_i++) \ - per_thread(name, __i_p_t_i) = v; \ - } while (0) - -/* - * CPU traversal primitives. - */ - -#ifndef NR_CPUS -#define NR_CPUS 16 -#endif /* #ifndef NR_CPUS */ - -#define for_each_possible_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) -#define for_each_online_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) - -/* - * Per-CPU variables. - */ - -#define DEFINE_PER_CPU(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ - } __per_cpu_##name[NR_CPUS] -#define DECLARE_PER_CPU(type, name) extern DEFINE_PER_CPU(type, name) - -DEFINE_PER_THREAD(int, smp_processor_id); - -#define per_cpu(name, thread) __per_cpu_##name[thread].v -#define __get_cpu_var(name) per_cpu(name, smp_processor_id()) - -#define init_per_cpu(name, v) \ - do { \ - int __i_p_c_i; \ - for (__i_p_c_i = 0; __i_p_c_i < NR_CPUS; __i_p_c_i++) \ - per_cpu(name, __i_p_c_i) = v; \ - } while (0) - -/* - * CPU state checking (crowbarred). - */ - -#define idle_cpu(cpu) 0 -#define in_softirq() 1 -#define hardirq_count() 0 -#define PREEMPT_SHIFT 0 -#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) -#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) -#define PREEMPT_BITS 8 -#define SOFTIRQ_BITS 8 - -/* - * CPU hotplug. - */ - -struct notifier_block { - int (*notifier_call)(struct notifier_block *, unsigned long, void *); - struct notifier_block *next; - int priority; -}; - -#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ -#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ -#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ -#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ -#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ -#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ -#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, - * not handling interrupts, soon dead */ -#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug - * lock is dropped */ - -/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend - * operation in progress - */ -#define CPU_TASKS_FROZEN 0x0010 - -#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) -#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) -#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) -#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) -#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) -#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) -#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) - -/* Hibernation and suspend events */ -#define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ -#define PM_POST_HIBERNATION 0x0002 /* Hibernation finished */ -#define PM_SUSPEND_PREPARE 0x0003 /* Going to suspend the system */ -#define PM_POST_SUSPEND 0x0004 /* Suspend finished */ -#define PM_RESTORE_PREPARE 0x0005 /* Going to restore a saved image */ -#define PM_POST_RESTORE 0x0006 /* Restore failed */ - -#define NOTIFY_DONE 0x0000 /* Don't care */ -#define NOTIFY_OK 0x0001 /* Suits me */ -#define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ -#define NOTIFY_BAD (NOTIFY_STOP_MASK|0x0002) - /* Bad/Veto action */ -/* - * Clean way to return from the notifier and stop further calls. - */ -#define NOTIFY_STOP (NOTIFY_OK|NOTIFY_STOP_MASK) - -/* - * Bug checks. - */ - -#define BUG_ON(c) do { if (!(c)) abort(); } while (0) - -/* - * Initialization -- Must be called before calling any primitives. - */ - -static void smp_init(void) -{ - int i; - - spin_lock_init(&__thread_id_map_mutex); - __thread_id_map[0] = pthread_self(); - for (i = 1; i < NR_THREADS; i++) - __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; - init_per_thread(smp_processor_id, 0); - if (pthread_key_create(&thread_id_key, NULL) != 0) { - perror("pthread_key_create"); - exit(-1); - } -} - -/* Taken from the Linux kernel source tree, so GPLv2-only!!! */ - -#ifndef _LINUX_LIST_H -#define _LINUX_LIST_H - -#define LIST_POISON1 ((void *) 0x00100100) -#define LIST_POISON2 ((void *) 0x00200200) - -#if 0 -/* - * Simple doubly linked list implementation. - * - * Some of the internal functions ("__xxx") are useful when - * manipulating whole lists rather than single entries, as - * sometimes we already know the next/prev entries and we can - * generate better code by using them directly rather than - * using the generic single-entry routines. - */ - -struct cds_list_head { - struct cds_list_head *next, *prev; -}; - -#define CDS_LIST_HEAD_INIT(name) { &(name), &(name) } - -#define CDS_LIST_HEAD(name) \ - struct cds_list_head name = CDS_LIST_HEAD_INIT(name) - -static inline void CDS_INIT_LIST_HEAD(struct cds_list_head *list) -{ - list->next = list; - list->prev = list; -} - -/* - * Insert a new entry between two known consecutive entries. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -#ifndef CONFIG_DEBUG_LIST -static inline void __cds_list_add(struct cds_list_head *new, - struct cds_list_head *prev, - struct cds_list_head *next) -{ - next->prev = new; - new->next = next; - new->prev = prev; - prev->next = new; -} -#else -extern void __cds_list_add(struct cds_list_head *new, - struct cds_list_head *prev, - struct cds_list_head *next); -#endif - -/** - * cds_list_add - add a new entry - * @new: new entry to be added - * @head: list head to add it after - * - * Insert a new entry after the specified head. - * This is good for implementing stacks. - */ -static inline void cds_list_add(struct cds_list_head *new, struct cds_list_head *head) -{ - __cds_list_add(new, head, head->next); -} - - -/** - * cds_list_add_tail - add a new entry - * @new: new entry to be added - * @head: list head to add it before - * - * Insert a new entry before the specified head. - * This is useful for implementing queues. - */ -static inline void cds_list_add_tail(struct cds_list_head *new, struct cds_list_head *head) -{ - __cds_list_add(new, head->prev, head); -} - -/* - * Delete a list entry by making the prev/next entries - * point to each other. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -static inline void __cds_list_del(struct cds_list_head * prev, struct cds_list_head * next) -{ - next->prev = prev; - prev->next = next; -} - -/** - * cds_list_del - deletes entry from list. - * @entry: the element to delete from the list. - * Note: cds_list_empty() on entry does not return true after this, the entry is - * in an undefined state. - */ -#ifndef CONFIG_DEBUG_LIST -static inline void cds_list_del(struct cds_list_head *entry) -{ - __cds_list_del(entry->prev, entry->next); - entry->next = LIST_POISON1; - entry->prev = LIST_POISON2; -} -#else -extern void cds_list_del(struct cds_list_head *entry); -#endif - -/** - * cds_list_replace - replace old entry by new one - * @old : the element to be replaced - * @new : the new element to insert - * - * If @old was empty, it will be overwritten. - */ -static inline void cds_list_replace(struct cds_list_head *old, - struct cds_list_head *new) -{ - new->next = old->next; - new->next->prev = new; - new->prev = old->prev; - new->prev->next = new; -} - -static inline void cds_list_replace_init(struct cds_list_head *old, - struct cds_list_head *new) -{ - cds_list_replace(old, new); - CDS_INIT_LIST_HEAD(old); -} - -/** - * cds_list_del_init - deletes entry from list and reinitialize it. - * @entry: the element to delete from the list. - */ -static inline void cds_list_del_init(struct cds_list_head *entry) -{ - __cds_list_del(entry->prev, entry->next); - CDS_INIT_LIST_HEAD(entry); -} - -/** - * cds_list_move - delete from one list and add as another's head - * @list: the entry to move - * @head: the head that will precede our entry - */ -static inline void cds_list_move(struct cds_list_head *list, struct cds_list_head *head) -{ - __cds_list_del(list->prev, list->next); - cds_list_add(list, head); -} - -/** - * cds_list_move_tail - delete from one list and add as another's tail - * @list: the entry to move - * @head: the head that will follow our entry - */ -static inline void cds_list_move_tail(struct cds_list_head *list, - struct cds_list_head *head) -{ - __cds_list_del(list->prev, list->next); - cds_list_add_tail(list, head); -} - -/** - * list_is_last - tests whether @list is the last entry in list @head - * @list: the entry to test - * @head: the head of the list - */ -static inline int list_is_last(const struct cds_list_head *list, - const struct cds_list_head *head) -{ - return list->next == head; -} - -/** - * cds_list_empty - tests whether a list is empty - * @head: the list to test. - */ -static inline int cds_list_empty(const struct cds_list_head *head) -{ - return head->next == head; -} - -/** - * cds_list_empty_careful - tests whether a list is empty and not being modified - * @head: the list to test - * - * Description: - * tests whether a list is empty _and_ checks that no other CPU might be - * in the process of modifying either member (next or prev) - * - * NOTE: using cds_list_empty_careful() without synchronization - * can only be safe if the only activity that can happen - * to the list entry is cds_list_del_init(). Eg. it cannot be used - * if another CPU could re-list_add() it. - */ -static inline int cds_list_empty_careful(const struct cds_list_head *head) -{ - struct cds_list_head *next = head->next; - return (next == head) && (next == head->prev); -} - -/** - * list_is_singular - tests whether a list has just one entry. - * @head: the list to test. - */ -static inline int list_is_singular(const struct cds_list_head *head) -{ - return !list_empty(head) && (head->next == head->prev); -} - -static inline void __list_cut_position(struct cds_list_head *list, - struct cds_list_head *head, struct cds_list_head *entry) -{ - struct cds_list_head *new_first = entry->next; - list->next = head->next; - list->next->prev = list; - list->prev = entry; - entry->next = list; - head->next = new_first; - new_first->prev = head; -} - -/** - * list_cut_position - cut a list into two - * @list: a new list to add all removed entries - * @head: a list with entries - * @entry: an entry within head, could be the head itself - * and if so we won't cut the list - * - * This helper moves the initial part of @head, up to and - * including @entry, from @head to @list. You should - * pass on @entry an element you know is on @head. @list - * should be an empty list or a list you do not care about - * losing its data. - * - */ -static inline void list_cut_position(struct cds_list_head *list, - struct cds_list_head *head, struct cds_list_head *entry) -{ - if (cds_list_empty(head)) - return; - if (list_is_singular(head) && - (head->next != entry && head != entry)) - return; - if (entry == head) - CDS_INIT_LIST_HEAD(list); - else - __list_cut_position(list, head, entry); -} - -static inline void __cds_list_splice(const struct cds_list_head *list, - struct cds_list_head *prev, - struct cds_list_head *next) -{ - struct cds_list_head *first = list->next; - struct cds_list_head *last = list->prev; - - first->prev = prev; - prev->next = first; - - last->next = next; - next->prev = last; -} - -/** - * cds_list_splice - join two lists, this is designed for stacks - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static inline void cds_list_splice(const struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) - __cds_list_splice(list, head, head->next); -} - -/** - * cds_list_splice_tail - join two lists, each list being a queue - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static inline void cds_list_splice_tail(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) - __cds_list_splice(list, head->prev, head); -} - -/** - * cds_list_splice_init - join two lists and reinitialise the emptied list. - * @list: the new list to add. - * @head: the place to add it in the first list. - * - * The list at @list is reinitialised - */ -static inline void cds_list_splice_init(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) { - __cds_list_splice(list, head, head->next); - CDS_INIT_LIST_HEAD(list); - } -} - -/** - * cds_list_splice_tail_init - join two lists and reinitialise the emptied list - * @list: the new list to add. - * @head: the place to add it in the first list. - * - * Each of the lists is a queue. - * The list at @list is reinitialised - */ -static inline void cds_list_splice_tail_init(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) { - __cds_list_splice(list, head->prev, head); - CDS_INIT_LIST_HEAD(list); - } -} - -/** - * cds_list_entry - get the struct for this entry - * @ptr: the &struct cds_list_head pointer. - * @type: the type of the struct this is embedded in. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_entry(ptr, type, member) \ - caa_container_of(ptr, type, member) - -/** - * list_first_entry - 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 list is expected to be not empty. - */ -#define list_first_entry(ptr, type, member) \ - cds_list_entry((ptr)->next, type, member) - -/** - * cds_list_for_each - iterate over a list - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - */ -#define cds_list_for_each(pos, head) \ - for (pos = (head)->next; prefetch(pos->next), pos != (head); \ - pos = pos->next) - -/** - * __cds_list_for_each - iterate over a list - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - * - * This variant differs from cds_list_for_each() in that it's the - * simplest possible list iteration code, no prefetching is done. - * Use this for code that knows the list to be very short (empty - * or 1 entry) most of the time. - */ -#define __cds_list_for_each(pos, head) \ - for (pos = (head)->next; pos != (head); pos = pos->next) - -/** - * cds_list_for_each_prev - iterate over a list backwards - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - */ -#define cds_list_for_each_prev(pos, head) \ - for (pos = (head)->prev; prefetch(pos->prev), pos != (head); \ - pos = pos->prev) - -/** - * cds_list_for_each_safe - iterate over a list safe against removal of list entry - * @pos: the &struct cds_list_head to use as a loop cursor. - * @n: another &struct cds_list_head to use as temporary storage - * @head: the head for your list. - */ -#define cds_list_for_each_safe(pos, n, head) \ - for (pos = (head)->next, n = pos->next; pos != (head); \ - pos = n, n = pos->next) - -/** - * cds_list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry - * @pos: the &struct cds_list_head to use as a loop cursor. - * @n: another &struct cds_list_head to use as temporary storage - * @head: the head for your list. - */ -#define cds_list_for_each_prev_safe(pos, n, head) \ - for (pos = (head)->prev, n = pos->prev; \ - prefetch(pos->prev), pos != (head); \ - pos = n, n = pos->prev) - -/** - * cds_list_for_each_entry - iterate over list of given type - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry(pos, head, member) \ - for (pos = cds_list_entry((head)->next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_reverse - iterate backwards over list of given type. - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry_reverse(pos, head, member) \ - for (pos = cds_list_entry((head)->prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ - pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) - -/** - * list_prepare_entry - prepare a pos entry for use in cds_list_for_each_entry_continue() - * @pos: the type * to use as a start point - * @head: the head of the list - * @member: the name of the list_struct within the struct. - * - * Prepares a pos entry for use as a start point in cds_list_for_each_entry_continue(). - */ -#define list_prepare_entry(pos, head, member) \ - ((pos) ? : cds_list_entry(head, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_continue - continue iteration over list of given type - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Continue to iterate over list of given type, continuing after - * the current position. - */ -#define cds_list_for_each_entry_continue(pos, head, member) \ - for (pos = cds_list_entry(pos->member.next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_continue_reverse - iterate backwards from the given point - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Start to iterate over list of given type backwards, continuing after - * the current position. - */ -#define cds_list_for_each_entry_continue_reverse(pos, head, member) \ - for (pos = cds_list_entry(pos->member.prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ - pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_from - iterate over list of given type from the current point - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type, continuing from current position. - */ -#define cds_list_for_each_entry_from(pos, head, member) \ - for (; prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_safe - iterate over list of given type safe against removal of list entry - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry_safe(pos, n, head, member) \ - for (pos = cds_list_entry((head)->next, typeof(*pos), member), \ - n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_continue - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type, continuing after current point, - * safe against removal of list entry. - */ -#define cds_list_for_each_entry_safe_continue(pos, n, head, member) \ - for (pos = cds_list_entry(pos->member.next, typeof(*pos), member), \ - n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_from - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type from current point, safe against - * removal of list entry. - */ -#define cds_list_for_each_entry_safe_from(pos, n, head, member) \ - for (n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_reverse - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate backwards over list of given type, safe against removal - * of list entry. - */ -#define cds_list_for_each_entry_safe_reverse(pos, n, head, member) \ - for (pos = cds_list_entry((head)->prev, typeof(*pos), member), \ - n = cds_list_entry(pos->member.prev, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.prev, typeof(*n), member)) - -#endif //0 - -/* - * Double linked lists with a single pointer list head. - * Mostly useful for hash tables where the two pointer list head is - * too wasteful. - * You lose the ability to access the tail in O(1). - */ - -struct cds_hlist_head { - struct cds_hlist_node *first; -}; - -struct cds_hlist_node { - struct cds_hlist_node *next, **pprev; -}; - -#define HLIST_HEAD_INIT { .first = NULL } -#define HLIST_HEAD(name) struct cds_hlist_head name = { .first = NULL } -#define CDS_INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL) -static inline void INIT_HLIST_NODE(struct cds_hlist_node *h) -{ - h->next = NULL; - h->pprev = NULL; -} - -static inline int hlist_unhashed(const struct cds_hlist_node *h) -{ - return !h->pprev; -} - -static inline int hlist_empty(const struct cds_hlist_head *h) -{ - return !h->first; -} - -static inline void __cds_hlist_del(struct cds_hlist_node *n) -{ - struct cds_hlist_node *next = n->next; - struct cds_hlist_node **pprev = n->pprev; - *pprev = next; - if (next) - next->pprev = pprev; -} - -static inline void cds_hlist_del(struct cds_hlist_node *n) -{ - __cds_hlist_del(n); - n->next = LIST_POISON1; - n->pprev = LIST_POISON2; -} - -static inline void cds_hlist_del_init(struct cds_hlist_node *n) -{ - if (!hlist_unhashed(n)) { - __cds_hlist_del(n); - INIT_HLIST_NODE(n); - } -} - -static inline void cds_hlist_add_head(struct cds_hlist_node *n, struct cds_hlist_head *h) -{ - struct cds_hlist_node *first = h->first; - n->next = first; - if (first) - first->pprev = &n->next; - h->first = n; - n->pprev = &h->first; -} - -/* next must be != NULL */ -static inline void hlist_add_before(struct cds_hlist_node *n, - struct cds_hlist_node *next) -{ - n->pprev = next->pprev; - n->next = next; - next->pprev = &n->next; - *(n->pprev) = n; -} - -static inline void hlist_add_after(struct cds_hlist_node *n, - struct cds_hlist_node *next) -{ - next->next = n->next; - n->next = next; - next->pprev = &n->next; - - if(next->next) - next->next->pprev = &next->next; -} - -/* - * Move a list from one list head to another. Fixup the pprev - * reference of the first entry if it exists. - */ -static inline void hlist_move_list(struct cds_hlist_head *old, - struct cds_hlist_head *new) -{ - new->first = old->first; - if (new->first) - new->first->pprev = &new->first; - old->first = NULL; -} - -#define cds_hlist_entry(ptr, type, member) caa_container_of(ptr,type,member) - -#define cds_hlist_for_each(pos, head) \ - for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \ - pos = pos->next) - -#define cds_hlist_for_each_safe(pos, n, head) \ - for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \ - pos = n) - -/** - * cds_hlist_for_each_entry - iterate over list of given type - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry(tpos, pos, head, member) \ - for (pos = (head)->first; \ - pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_continue - iterate over a hlist continuing after current point - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_continue(tpos, pos, member) \ - for (pos = (pos)->next; \ - pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_from - iterate over a hlist continuing from current point - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_from(tpos, pos, member) \ - for (; pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @n: another &struct cds_hlist_node to use as temporary storage - * @head: the head for your list. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_safe(tpos, pos, n, head, member) \ - for (pos = (head)->first; \ - pos && ({ n = pos->next; 1; }) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = n) - -#endif - -#endif diff --git a/tests/api_ppc.h b/tests/api_ppc.h deleted file mode 100644 index 255cb89..0000000 --- a/tests/api_ppc.h +++ /dev/null @@ -1,1152 +0,0 @@ -/* MECHANICALLY GENERATED, DO NOT EDIT!!! */ - -#ifndef _INCLUDE_API_H -#define _INCLUDE_API_H - -/* - * common.h: Common Linux kernel-isms. - * - * 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; but version 2 of the License only due - * to code included from the Linux kernel. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ - -#include - -#ifndef __always_inline -#define __always_inline inline -#endif - -#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) -#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) - -#ifdef __ASSEMBLY__ -# define stringify_in_c(...) __VA_ARGS__ -# define ASM_CONST(x) x -#else -/* This version of stringify will deal with commas... */ -# define __stringify_in_c(...) #__VA_ARGS__ -# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " -# define __ASM_CONST(x) x##UL -# define ASM_CONST(x) __ASM_CONST(x) -#endif - - -/* - * arch-ppc64.h: Expose PowerPC atomic instructions. - * - * 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; but version 2 of the License only due - * to code included from the Linux kernel. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ - -/* - * Machine parameters. - */ - -#define ____cacheline_internodealigned_in_smp \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))) - -/* - * api_pthreads.h: API mapping to pthreads environment. - * - * 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. However, please note that much - * of the code in this file derives from the Linux kernel, and that such - * code may not be available except under GPLv2. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - */ - -#include -#include -#include -#include -#include -#define __USE_GNU -#include -#include -#include -/* #include "atomic.h" */ - -/* - * Default machine parameters. - */ - -#ifndef CAA_CACHE_LINE_SIZE -/* #define CAA_CACHE_LINE_SIZE 128 */ -#endif /* #ifndef CAA_CACHE_LINE_SIZE */ - -/* - * Exclusive locking primitives. - */ - -typedef pthread_mutex_t spinlock_t; - -#define DEFINE_SPINLOCK(lock) spinlock_t lock = PTHREAD_MUTEX_INITIALIZER; -#define __SPIN_LOCK_UNLOCKED(lockp) PTHREAD_MUTEX_INITIALIZER - -static void spin_lock_init(spinlock_t *sp) -{ - if (pthread_mutex_init(sp, NULL) != 0) { - perror("spin_lock_init:pthread_mutex_init"); - exit(-1); - } -} - -static void spin_lock(spinlock_t *sp) -{ - if (pthread_mutex_lock(sp) != 0) { - perror("spin_lock:pthread_mutex_lock"); - exit(-1); - } -} - -static void spin_unlock(spinlock_t *sp) -{ - if (pthread_mutex_unlock(sp) != 0) { - perror("spin_unlock:pthread_mutex_unlock"); - exit(-1); - } -} - -#define spin_lock_irqsave(l, f) do { f = 1; spin_lock(l); } while (0) -#define spin_unlock_irqrestore(l, f) do { f = 0; spin_unlock(l); } while (0) - -/* - * Thread creation/destruction primitives. - */ - -typedef pthread_t thread_id_t; - -#define NR_THREADS 128 - -#define __THREAD_ID_MAP_EMPTY 0 -#define __THREAD_ID_MAP_WAITING 1 -thread_id_t __thread_id_map[NR_THREADS]; -spinlock_t __thread_id_map_mutex; - -#define for_each_thread(t) \ - for (t = 0; t < NR_THREADS; t++) - -#define for_each_running_thread(t) \ - for (t = 0; t < NR_THREADS; t++) \ - if ((__thread_id_map[t] != __THREAD_ID_MAP_EMPTY) && \ - (__thread_id_map[t] != __THREAD_ID_MAP_WAITING)) - -#define for_each_tid(t, tid) \ - for (t = 0; t < NR_THREADS; t++) \ - if ((((tid) = __thread_id_map[t]) != __THREAD_ID_MAP_EMPTY) && \ - ((tid) != __THREAD_ID_MAP_WAITING)) - -pthread_key_t thread_id_key; - -static int __smp_thread_id(void) -{ - int i; - thread_id_t tid = pthread_self(); - - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) { - long v = i + 1; /* must be non-NULL. */ - - if (pthread_setspecific(thread_id_key, (void *)v) != 0) { - perror("pthread_setspecific"); - exit(-1); - } - return i; - } - } - spin_lock(&__thread_id_map_mutex); - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) - spin_unlock(&__thread_id_map_mutex); - return i; - } - spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "smp_thread_id: Rogue thread, id: %d(%#x)\n", - (int)tid, (int)tid); - exit(-1); -} - -static int smp_thread_id(void) -{ - void *id; - - id = pthread_getspecific(thread_id_key); - if (id == NULL) - return __smp_thread_id(); - return (long)(id - 1); -} - -static thread_id_t create_thread(void *(*func)(void *), void *arg) -{ - thread_id_t tid; - int i; - - spin_lock(&__thread_id_map_mutex); - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == __THREAD_ID_MAP_EMPTY) - break; - } - if (i >= NR_THREADS) { - spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "Thread limit of %d exceeded!\n", NR_THREADS); - exit(-1); - } - __thread_id_map[i] = __THREAD_ID_MAP_WAITING; - spin_unlock(&__thread_id_map_mutex); - if (pthread_create(&tid, NULL, func, arg) != 0) { - perror("create_thread:pthread_create"); - exit(-1); - } - __thread_id_map[i] = tid; - return tid; -} - -static void *wait_thread(thread_id_t tid) -{ - int i; - void *vp; - - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) - break; - } - if (i >= NR_THREADS){ - fprintf(stderr, "wait_thread: bad tid = %d(%#x)\n", - (int)tid, (int)tid); - exit(-1); - } - if (pthread_join(tid, &vp) != 0) { - perror("wait_thread:pthread_join"); - exit(-1); - } - __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; - return vp; -} - -static void wait_all_threads(void) -{ - int i; - thread_id_t tid; - - for (i = 1; i < NR_THREADS; i++) { - tid = __thread_id_map[i]; - if (tid != __THREAD_ID_MAP_EMPTY && - tid != __THREAD_ID_MAP_WAITING) - (void)wait_thread(tid); - } -} - -static void run_on(int cpu) -{ - cpu_set_t mask; - - CPU_ZERO(&mask); - CPU_SET(cpu, &mask); - sched_setaffinity(0, sizeof(mask), &mask); -} - -/* - * timekeeping -- very crude -- should use MONOTONIC... - */ - -long long get_microseconds(void) -{ - struct timeval tv; - - if (gettimeofday(&tv, NULL) != 0) - abort(); - return ((long long)tv.tv_sec) * 1000000LL + (long long)tv.tv_usec; -} - -/* - * Per-thread variables. - */ - -#define DEFINE_PER_THREAD(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ - } __per_thread_##name[NR_THREADS]; -#define DECLARE_PER_THREAD(type, name) extern DEFINE_PER_THREAD(type, name) - -#define per_thread(name, thread) __per_thread_##name[thread].v -#define __get_thread_var(name) per_thread(name, smp_thread_id()) - -#define init_per_thread(name, v) \ - do { \ - int __i_p_t_i; \ - for (__i_p_t_i = 0; __i_p_t_i < NR_THREADS; __i_p_t_i++) \ - per_thread(name, __i_p_t_i) = v; \ - } while (0) - -/* - * CPU traversal primitives. - */ - -#ifndef NR_CPUS -#define NR_CPUS 16 -#endif /* #ifndef NR_CPUS */ - -#define for_each_possible_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) -#define for_each_online_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) - -/* - * Per-CPU variables. - */ - -#define DEFINE_PER_CPU(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ - } __per_cpu_##name[NR_CPUS] -#define DECLARE_PER_CPU(type, name) extern DEFINE_PER_CPU(type, name) - -DEFINE_PER_THREAD(int, smp_processor_id); - -#define per_cpu(name, thread) __per_cpu_##name[thread].v -#define __get_cpu_var(name) per_cpu(name, smp_processor_id()) - -#define init_per_cpu(name, v) \ - do { \ - int __i_p_c_i; \ - for (__i_p_c_i = 0; __i_p_c_i < NR_CPUS; __i_p_c_i++) \ - per_cpu(name, __i_p_c_i) = v; \ - } while (0) - -/* - * CPU state checking (crowbarred). - */ - -#define idle_cpu(cpu) 0 -#define in_softirq() 1 -#define hardirq_count() 0 -#define PREEMPT_SHIFT 0 -#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) -#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) -#define PREEMPT_BITS 8 -#define SOFTIRQ_BITS 8 - -/* - * CPU hotplug. - */ - -struct notifier_block { - int (*notifier_call)(struct notifier_block *, unsigned long, void *); - struct notifier_block *next; - int priority; -}; - -#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ -#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ -#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ -#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ -#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ -#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ -#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, - * not handling interrupts, soon dead */ -#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug - * lock is dropped */ - -/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend - * operation in progress - */ -#define CPU_TASKS_FROZEN 0x0010 - -#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) -#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) -#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) -#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) -#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) -#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) -#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) - -/* Hibernation and suspend events */ -#define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ -#define PM_POST_HIBERNATION 0x0002 /* Hibernation finished */ -#define PM_SUSPEND_PREPARE 0x0003 /* Going to suspend the system */ -#define PM_POST_SUSPEND 0x0004 /* Suspend finished */ -#define PM_RESTORE_PREPARE 0x0005 /* Going to restore a saved image */ -#define PM_POST_RESTORE 0x0006 /* Restore failed */ - -#define NOTIFY_DONE 0x0000 /* Don't care */ -#define NOTIFY_OK 0x0001 /* Suits me */ -#define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ -#define NOTIFY_BAD (NOTIFY_STOP_MASK|0x0002) - /* Bad/Veto action */ -/* - * Clean way to return from the notifier and stop further calls. - */ -#define NOTIFY_STOP (NOTIFY_OK|NOTIFY_STOP_MASK) - -/* - * Bug checks. - */ - -#define BUG_ON(c) do { if (!(c)) abort(); } while (0) - -/* - * Initialization -- Must be called before calling any primitives. - */ - -static void smp_init(void) -{ - int i; - - spin_lock_init(&__thread_id_map_mutex); - __thread_id_map[0] = pthread_self(); - for (i = 1; i < NR_THREADS; i++) - __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; - init_per_thread(smp_processor_id, 0); - if (pthread_key_create(&thread_id_key, NULL) != 0) { - perror("pthread_key_create"); - exit(-1); - } -} - -/* Taken from the Linux kernel source tree, so GPLv2-only!!! */ - -#ifndef _LINUX_LIST_H -#define _LINUX_LIST_H - -#define LIST_POISON1 ((void *) 0x00100100) -#define LIST_POISON2 ((void *) 0x00200200) - -#if 0 - -/* - * Simple doubly linked list implementation. - * - * Some of the internal functions ("__xxx") are useful when - * manipulating whole lists rather than single entries, as - * sometimes we already know the next/prev entries and we can - * generate better code by using them directly rather than - * using the generic single-entry routines. - */ - -struct cds_list_head { - struct cds_list_head *next, *prev; -}; - -#define CDS_LIST_HEAD_INIT(name) { &(name), &(name) } - -#define CDS_LIST_HEAD(name) \ - struct cds_list_head name = CDS_LIST_HEAD_INIT(name) - -static inline void CDS_INIT_LIST_HEAD(struct cds_list_head *list) -{ - list->next = list; - list->prev = list; -} - -/* - * Insert a new entry between two known consecutive entries. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -#ifndef CONFIG_DEBUG_LIST -static inline void __cds_list_add(struct cds_list_head *new, - struct cds_list_head *prev, - struct cds_list_head *next) -{ - next->prev = new; - new->next = next; - new->prev = prev; - prev->next = new; -} -#else -extern void __cds_list_add(struct cds_list_head *new, - struct cds_list_head *prev, - struct cds_list_head *next); -#endif - -/** - * cds_list_add - add a new entry - * @new: new entry to be added - * @head: list head to add it after - * - * Insert a new entry after the specified head. - * This is good for implementing stacks. - */ -static inline void cds_list_add(struct cds_list_head *new, struct cds_list_head *head) -{ - __cds_list_add(new, head, head->next); -} - - -/** - * cds_list_add_tail - add a new entry - * @new: new entry to be added - * @head: list head to add it before - * - * Insert a new entry before the specified head. - * This is useful for implementing queues. - */ -static inline void cds_list_add_tail(struct cds_list_head *new, struct cds_list_head *head) -{ - __cds_list_add(new, head->prev, head); -} - -/* - * Delete a list entry by making the prev/next entries - * point to each other. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -static inline void __cds_list_del(struct cds_list_head * prev, struct cds_list_head * next) -{ - next->prev = prev; - prev->next = next; -} - -/** - * cds_list_del - deletes entry from list. - * @entry: the element to delete from the list. - * Note: cds_list_empty() on entry does not return true after this, the entry is - * in an undefined state. - */ -#ifndef CONFIG_DEBUG_LIST -static inline void cds_list_del(struct cds_list_head *entry) -{ - __cds_list_del(entry->prev, entry->next); - entry->next = LIST_POISON1; - entry->prev = LIST_POISON2; -} -#else -extern void cds_list_del(struct cds_list_head *entry); -#endif - -/** - * cds_list_replace - replace old entry by new one - * @old : the element to be replaced - * @new : the new element to insert - * - * If @old was empty, it will be overwritten. - */ -static inline void cds_list_replace(struct cds_list_head *old, - struct cds_list_head *new) -{ - new->next = old->next; - new->next->prev = new; - new->prev = old->prev; - new->prev->next = new; -} - -static inline void cds_list_replace_init(struct cds_list_head *old, - struct cds_list_head *new) -{ - cds_list_replace(old, new); - CDS_INIT_LIST_HEAD(old); -} - -/** - * cds_list_del_init - deletes entry from list and reinitialize it. - * @entry: the element to delete from the list. - */ -static inline void cds_list_del_init(struct cds_list_head *entry) -{ - __cds_list_del(entry->prev, entry->next); - CDS_INIT_LIST_HEAD(entry); -} - -/** - * cds_list_move - delete from one list and add as another's head - * @list: the entry to move - * @head: the head that will precede our entry - */ -static inline void cds_list_move(struct cds_list_head *list, struct cds_list_head *head) -{ - __cds_list_del(list->prev, list->next); - cds_list_add(list, head); -} - -/** - * cds_list_move_tail - delete from one list and add as another's tail - * @list: the entry to move - * @head: the head that will follow our entry - */ -static inline void cds_list_move_tail(struct cds_list_head *list, - struct cds_list_head *head) -{ - __cds_list_del(list->prev, list->next); - cds_list_add_tail(list, head); -} - -/** - * list_is_last - tests whether @list is the last entry in list @head - * @list: the entry to test - * @head: the head of the list - */ -static inline int list_is_last(const struct cds_list_head *list, - const struct cds_list_head *head) -{ - return list->next == head; -} - -/** - * cds_list_empty - tests whether a list is empty - * @head: the list to test. - */ -static inline int cds_list_empty(const struct cds_list_head *head) -{ - return head->next == head; -} - -/** - * cds_list_empty_careful - tests whether a list is empty and not being modified - * @head: the list to test - * - * Description: - * tests whether a list is empty _and_ checks that no other CPU might be - * in the process of modifying either member (next or prev) - * - * NOTE: using cds_list_empty_careful() without synchronization - * can only be safe if the only activity that can happen - * to the list entry is cds_list_del_init(). Eg. it cannot be used - * if another CPU could re-list_add() it. - */ -static inline int cds_list_empty_careful(const struct cds_list_head *head) -{ - struct cds_list_head *next = head->next; - return (next == head) && (next == head->prev); -} - -/** - * list_is_singular - tests whether a list has just one entry. - * @head: the list to test. - */ -static inline int list_is_singular(const struct cds_list_head *head) -{ - return !list_empty(head) && (head->next == head->prev); -} - -static inline void __list_cut_position(struct cds_list_head *list, - struct cds_list_head *head, struct cds_list_head *entry) -{ - struct cds_list_head *new_first = entry->next; - list->next = head->next; - list->next->prev = list; - list->prev = entry; - entry->next = list; - head->next = new_first; - new_first->prev = head; -} - -/** - * list_cut_position - cut a list into two - * @list: a new list to add all removed entries - * @head: a list with entries - * @entry: an entry within head, could be the head itself - * and if so we won't cut the list - * - * This helper moves the initial part of @head, up to and - * including @entry, from @head to @list. You should - * pass on @entry an element you know is on @head. @list - * should be an empty list or a list you do not care about - * losing its data. - * - */ -static inline void list_cut_position(struct cds_list_head *list, - struct cds_list_head *head, struct cds_list_head *entry) -{ - if (cds_list_empty(head)) - return; - if (list_is_singular(head) && - (head->next != entry && head != entry)) - return; - if (entry == head) - CDS_INIT_LIST_HEAD(list); - else - __list_cut_position(list, head, entry); -} - -static inline void __cds_list_splice(const struct cds_list_head *list, - struct cds_list_head *prev, - struct cds_list_head *next) -{ - struct cds_list_head *first = list->next; - struct cds_list_head *last = list->prev; - - first->prev = prev; - prev->next = first; - - last->next = next; - next->prev = last; -} - -/** - * cds_list_splice - join two lists, this is designed for stacks - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static inline void cds_list_splice(const struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) - __cds_list_splice(list, head, head->next); -} - -/** - * cds_list_splice_tail - join two lists, each list being a queue - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static inline void cds_list_splice_tail(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) - __cds_list_splice(list, head->prev, head); -} - -/** - * cds_list_splice_init - join two lists and reinitialise the emptied list. - * @list: the new list to add. - * @head: the place to add it in the first list. - * - * The list at @list is reinitialised - */ -static inline void cds_list_splice_init(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) { - __cds_list_splice(list, head, head->next); - CDS_INIT_LIST_HEAD(list); - } -} - -/** - * cds_list_splice_tail_init - join two lists and reinitialise the emptied list - * @list: the new list to add. - * @head: the place to add it in the first list. - * - * Each of the lists is a queue. - * The list at @list is reinitialised - */ -static inline void cds_list_splice_tail_init(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) { - __cds_list_splice(list, head->prev, head); - CDS_INIT_LIST_HEAD(list); - } -} - -/** - * cds_list_entry - get the struct for this entry - * @ptr: the &struct cds_list_head pointer. - * @type: the type of the struct this is embedded in. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_entry(ptr, type, member) \ - caa_container_of(ptr, type, member) - -/** - * list_first_entry - 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 list is expected to be not empty. - */ -#define list_first_entry(ptr, type, member) \ - cds_list_entry((ptr)->next, type, member) - -/** - * cds_list_for_each - iterate over a list - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - */ -#define cds_list_for_each(pos, head) \ - for (pos = (head)->next; prefetch(pos->next), pos != (head); \ - pos = pos->next) - -/** - * __cds_list_for_each - iterate over a list - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - * - * This variant differs from cds_list_for_each() in that it's the - * simplest possible list iteration code, no prefetching is done. - * Use this for code that knows the list to be very short (empty - * or 1 entry) most of the time. - */ -#define __cds_list_for_each(pos, head) \ - for (pos = (head)->next; pos != (head); pos = pos->next) - -/** - * cds_list_for_each_prev - iterate over a list backwards - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - */ -#define cds_list_for_each_prev(pos, head) \ - for (pos = (head)->prev; prefetch(pos->prev), pos != (head); \ - pos = pos->prev) - -/** - * cds_list_for_each_safe - iterate over a list safe against removal of list entry - * @pos: the &struct cds_list_head to use as a loop cursor. - * @n: another &struct cds_list_head to use as temporary storage - * @head: the head for your list. - */ -#define cds_list_for_each_safe(pos, n, head) \ - for (pos = (head)->next, n = pos->next; pos != (head); \ - pos = n, n = pos->next) - -/** - * cds_list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry - * @pos: the &struct cds_list_head to use as a loop cursor. - * @n: another &struct cds_list_head to use as temporary storage - * @head: the head for your list. - */ -#define cds_list_for_each_prev_safe(pos, n, head) \ - for (pos = (head)->prev, n = pos->prev; \ - prefetch(pos->prev), pos != (head); \ - pos = n, n = pos->prev) - -/** - * cds_list_for_each_entry - iterate over list of given type - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry(pos, head, member) \ - for (pos = cds_list_entry((head)->next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_reverse - iterate backwards over list of given type. - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry_reverse(pos, head, member) \ - for (pos = cds_list_entry((head)->prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ - pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) - -/** - * list_prepare_entry - prepare a pos entry for use in cds_list_for_each_entry_continue() - * @pos: the type * to use as a start point - * @head: the head of the list - * @member: the name of the list_struct within the struct. - * - * Prepares a pos entry for use as a start point in cds_list_for_each_entry_continue(). - */ -#define list_prepare_entry(pos, head, member) \ - ((pos) ? : cds_list_entry(head, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_continue - continue iteration over list of given type - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Continue to iterate over list of given type, continuing after - * the current position. - */ -#define cds_list_for_each_entry_continue(pos, head, member) \ - for (pos = cds_list_entry(pos->member.next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_continue_reverse - iterate backwards from the given point - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Start to iterate over list of given type backwards, continuing after - * the current position. - */ -#define cds_list_for_each_entry_continue_reverse(pos, head, member) \ - for (pos = cds_list_entry(pos->member.prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ - pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_from - iterate over list of given type from the current point - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type, continuing from current position. - */ -#define cds_list_for_each_entry_from(pos, head, member) \ - for (; prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_safe - iterate over list of given type safe against removal of list entry - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry_safe(pos, n, head, member) \ - for (pos = cds_list_entry((head)->next, typeof(*pos), member), \ - n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_continue - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type, continuing after current point, - * safe against removal of list entry. - */ -#define cds_list_for_each_entry_safe_continue(pos, n, head, member) \ - for (pos = cds_list_entry(pos->member.next, typeof(*pos), member), \ - n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_from - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type from current point, safe against - * removal of list entry. - */ -#define cds_list_for_each_entry_safe_from(pos, n, head, member) \ - for (n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_reverse - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate backwards over list of given type, safe against removal - * of list entry. - */ -#define cds_list_for_each_entry_safe_reverse(pos, n, head, member) \ - for (pos = cds_list_entry((head)->prev, typeof(*pos), member), \ - n = cds_list_entry(pos->member.prev, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.prev, typeof(*n), member)) - -#endif //0 - -/* - * Double linked lists with a single pointer list head. - * Mostly useful for hash tables where the two pointer list head is - * too wasteful. - * You lose the ability to access the tail in O(1). - */ - -struct cds_hlist_head { - struct cds_hlist_node *first; -}; - -struct cds_hlist_node { - struct cds_hlist_node *next, **pprev; -}; - -#define HLIST_HEAD_INIT { .first = NULL } -#define HLIST_HEAD(name) struct cds_hlist_head name = { .first = NULL } -#define CDS_INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL) -static inline void INIT_HLIST_NODE(struct cds_hlist_node *h) -{ - h->next = NULL; - h->pprev = NULL; -} - -static inline int hlist_unhashed(const struct cds_hlist_node *h) -{ - return !h->pprev; -} - -static inline int hlist_empty(const struct cds_hlist_head *h) -{ - return !h->first; -} - -static inline void __cds_hlist_del(struct cds_hlist_node *n) -{ - struct cds_hlist_node *next = n->next; - struct cds_hlist_node **pprev = n->pprev; - *pprev = next; - if (next) - next->pprev = pprev; -} - -static inline void cds_hlist_del(struct cds_hlist_node *n) -{ - __cds_hlist_del(n); - n->next = LIST_POISON1; - n->pprev = LIST_POISON2; -} - -static inline void cds_hlist_del_init(struct cds_hlist_node *n) -{ - if (!hlist_unhashed(n)) { - __cds_hlist_del(n); - INIT_HLIST_NODE(n); - } -} - -static inline void cds_hlist_add_head(struct cds_hlist_node *n, struct cds_hlist_head *h) -{ - struct cds_hlist_node *first = h->first; - n->next = first; - if (first) - first->pprev = &n->next; - h->first = n; - n->pprev = &h->first; -} - -/* next must be != NULL */ -static inline void hlist_add_before(struct cds_hlist_node *n, - struct cds_hlist_node *next) -{ - n->pprev = next->pprev; - n->next = next; - next->pprev = &n->next; - *(n->pprev) = n; -} - -static inline void hlist_add_after(struct cds_hlist_node *n, - struct cds_hlist_node *next) -{ - next->next = n->next; - n->next = next; - next->pprev = &n->next; - - if(next->next) - next->next->pprev = &next->next; -} - -/* - * Move a list from one list head to another. Fixup the pprev - * reference of the first entry if it exists. - */ -static inline void hlist_move_list(struct cds_hlist_head *old, - struct cds_hlist_head *new) -{ - new->first = old->first; - if (new->first) - new->first->pprev = &new->first; - old->first = NULL; -} - -#define cds_hlist_entry(ptr, type, member) caa_container_of(ptr,type,member) - -#define cds_hlist_for_each(pos, head) \ - for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \ - pos = pos->next) - -#define cds_hlist_for_each_safe(pos, n, head) \ - for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \ - pos = n) - -/** - * cds_hlist_for_each_entry - iterate over list of given type - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry(tpos, pos, head, member) \ - for (pos = (head)->first; \ - pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_continue - iterate over a hlist continuing after current point - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_continue(tpos, pos, member) \ - for (pos = (pos)->next; \ - pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_from - iterate over a hlist continuing from current point - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_from(tpos, pos, member) \ - for (; pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @n: another &struct cds_hlist_node to use as temporary storage - * @head: the head for your list. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_safe(tpos, pos, n, head, member) \ - for (pos = (head)->first; \ - pos && ({ n = pos->next; 1; }) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = n) - -#endif - -#endif diff --git a/tests/api_x86.h b/tests/api_x86.h deleted file mode 100644 index 9147249..0000000 --- a/tests/api_x86.h +++ /dev/null @@ -1,1162 +0,0 @@ -/* MECHANICALLY GENERATED, DO NOT EDIT!!! */ - -#ifndef _INCLUDE_API_H -#define _INCLUDE_API_H - -#include "../config.h" - -/* - * common.h: Common Linux kernel-isms. - * - * 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; but version 2 of the License only due - * to code included from the Linux kernel. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ - -#include - -#ifndef __always_inline -#define __always_inline inline -#endif - -#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) -#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) - -#ifdef __ASSEMBLY__ -# define stringify_in_c(...) __VA_ARGS__ -# define ASM_CONST(x) x -#else -/* This version of stringify will deal with commas... */ -# define __stringify_in_c(...) #__VA_ARGS__ -# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " -# define __ASM_CONST(x) x##UL -# define ASM_CONST(x) __ASM_CONST(x) -#endif - - -/* - * arch-i386.h: Expose x86 atomic instructions. 80486 and better only. - * - * 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, but version 2 only due to inclusion - * of Linux-kernel code. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - * - * Much code taken from the Linux kernel. For such code, the option - * to redistribute under later versions of GPL might not be available. - */ - -/* - * Machine parameters. - */ - -/* #define CAA_CACHE_LINE_SIZE 64 */ -#define ____cacheline_internodealigned_in_smp \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))) - -/* - * api_pthreads.h: API mapping to pthreads environment. - * - * 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. However, please note that much - * of the code in this file derives from the Linux kernel, and that such - * code may not be available except under GPLv2. - * - * 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. - * - * Copyright (c) 2006 Paul E. McKenney, IBM. - */ - -#include -#include -#include -#include -#include -#define __USE_GNU -#include -#include -#include -/* #include "atomic.h" */ - -/* - * Default machine parameters. - */ - -#ifndef CAA_CACHE_LINE_SIZE -/* #define CAA_CACHE_LINE_SIZE 128 */ -#endif /* #ifndef CAA_CACHE_LINE_SIZE */ - -/* - * Exclusive locking primitives. - */ - -typedef pthread_mutex_t spinlock_t; - -#define DEFINE_SPINLOCK(lock) spinlock_t lock = PTHREAD_MUTEX_INITIALIZER; -#define __SPIN_LOCK_UNLOCKED(lockp) PTHREAD_MUTEX_INITIALIZER - -static void spin_lock_init(spinlock_t *sp) -{ - if (pthread_mutex_init(sp, NULL) != 0) { - perror("spin_lock_init:pthread_mutex_init"); - exit(-1); - } -} - -static void spin_lock(spinlock_t *sp) -{ - if (pthread_mutex_lock(sp) != 0) { - perror("spin_lock:pthread_mutex_lock"); - exit(-1); - } -} - -static void spin_unlock(spinlock_t *sp) -{ - if (pthread_mutex_unlock(sp) != 0) { - perror("spin_unlock:pthread_mutex_unlock"); - exit(-1); - } -} - -#define spin_lock_irqsave(l, f) do { f = 1; spin_lock(l); } while (0) -#define spin_unlock_irqrestore(l, f) do { f = 0; spin_unlock(l); } while (0) - -/* - * Thread creation/destruction primitives. - */ - -typedef pthread_t thread_id_t; - -#define NR_THREADS 128 - -#define __THREAD_ID_MAP_EMPTY ((thread_id_t) 0) -#define __THREAD_ID_MAP_WAITING ((thread_id_t) 1) -thread_id_t __thread_id_map[NR_THREADS]; -spinlock_t __thread_id_map_mutex; - -#define for_each_thread(t) \ - for (t = 0; t < NR_THREADS; t++) - -#define for_each_running_thread(t) \ - for (t = 0; t < NR_THREADS; t++) \ - if ((__thread_id_map[t] != __THREAD_ID_MAP_EMPTY) && \ - (__thread_id_map[t] != __THREAD_ID_MAP_WAITING)) - -pthread_key_t thread_id_key; - -static int __smp_thread_id(void) -{ - int i; - thread_id_t tid = pthread_self(); - - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) { - long v = i + 1; /* must be non-NULL. */ - - if (pthread_setspecific(thread_id_key, (void *)v) != 0) { - perror("pthread_setspecific"); - exit(-1); - } - return i; - } - } - spin_lock(&__thread_id_map_mutex); - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) - spin_unlock(&__thread_id_map_mutex); - return i; - } - spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "smp_thread_id: Rogue thread, id: %d(%#x)\n", - (int)tid, (int)tid); - exit(-1); -} - -static int smp_thread_id(void) -{ - void *id; - - id = pthread_getspecific(thread_id_key); - if (id == NULL) - return __smp_thread_id(); - return (long)(id - 1); -} - -static thread_id_t create_thread(void *(*func)(void *), void *arg) -{ - thread_id_t tid; - int i; - - spin_lock(&__thread_id_map_mutex); - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == __THREAD_ID_MAP_EMPTY) - break; - } - if (i >= NR_THREADS) { - spin_unlock(&__thread_id_map_mutex); - fprintf(stderr, "Thread limit of %d exceeded!\n", NR_THREADS); - exit(-1); - } - __thread_id_map[i] = __THREAD_ID_MAP_WAITING; - spin_unlock(&__thread_id_map_mutex); - if (pthread_create(&tid, NULL, func, arg) != 0) { - perror("create_thread:pthread_create"); - exit(-1); - } - __thread_id_map[i] = tid; - return tid; -} - -static void *wait_thread(thread_id_t tid) -{ - int i; - void *vp; - - for (i = 0; i < NR_THREADS; i++) { - if (__thread_id_map[i] == tid) - break; - } - if (i >= NR_THREADS){ - fprintf(stderr, "wait_thread: bad tid = %d(%#x)\n", - (int)tid, (int)tid); - exit(-1); - } - if (pthread_join(tid, &vp) != 0) { - perror("wait_thread:pthread_join"); - exit(-1); - } - __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; - return vp; -} - -static void wait_all_threads(void) -{ - int i; - thread_id_t tid; - - for (i = 1; i < NR_THREADS; i++) { - tid = __thread_id_map[i]; - if (tid != __THREAD_ID_MAP_EMPTY && - tid != __THREAD_ID_MAP_WAITING) - (void)wait_thread(tid); - } -} - -#ifndef HAVE_CPU_SET_T -typedef unsigned long cpu_set_t; -# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0) -# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0) -#endif - -static void run_on(int cpu) -{ -#if HAVE_SCHED_SETAFFINITY - cpu_set_t mask; - - CPU_ZERO(&mask); - CPU_SET(cpu, &mask); -#if SCHED_SETAFFINITY_ARGS == 2 - sched_setaffinity(0, &mask); -#else - sched_setaffinity(0, sizeof(mask), &mask); -#endif -#endif /* HAVE_SCHED_SETAFFINITY */ -} - -/* - * timekeeping -- very crude -- should use MONOTONIC... - */ - -long long get_microseconds(void) -{ - struct timeval tv; - - if (gettimeofday(&tv, NULL) != 0) - abort(); - return ((long long)tv.tv_sec) * 1000000LL + (long long)tv.tv_usec; -} - -/* - * Per-thread variables. - */ - -#define DEFINE_PER_THREAD(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ - } __per_thread_##name[NR_THREADS]; -#define DECLARE_PER_THREAD(type, name) extern DEFINE_PER_THREAD(type, name) - -#define per_thread(name, thread) __per_thread_##name[thread].v -#define __get_thread_var(name) per_thread(name, smp_thread_id()) - -#define init_per_thread(name, v) \ - do { \ - int __i_p_t_i; \ - for (__i_p_t_i = 0; __i_p_t_i < NR_THREADS; __i_p_t_i++) \ - per_thread(name, __i_p_t_i) = v; \ - } while (0) - -/* - * CPU traversal primitives. - */ - -#ifndef NR_CPUS -#define NR_CPUS 16 -#endif /* #ifndef NR_CPUS */ - -#define for_each_possible_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) -#define for_each_online_cpu(cpu) \ - for (cpu = 0; cpu < NR_CPUS; cpu++) - -/* - * Per-CPU variables. - */ - -#define DEFINE_PER_CPU(type, name) \ - struct { \ - __typeof__(type) v \ - __attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \ - } __per_cpu_##name[NR_CPUS] -#define DECLARE_PER_CPU(type, name) extern DEFINE_PER_CPU(type, name) - -DEFINE_PER_THREAD(int, smp_processor_id); - -#define per_cpu(name, thread) __per_cpu_##name[thread].v -#define __get_cpu_var(name) per_cpu(name, smp_processor_id()) - -#define init_per_cpu(name, v) \ - do { \ - int __i_p_c_i; \ - for (__i_p_c_i = 0; __i_p_c_i < NR_CPUS; __i_p_c_i++) \ - per_cpu(name, __i_p_c_i) = v; \ - } while (0) - -/* - * CPU state checking (crowbarred). - */ - -#define idle_cpu(cpu) 0 -#define in_softirq() 1 -#define hardirq_count() 0 -#define PREEMPT_SHIFT 0 -#define SOFTIRQ_SHIFT (PREEMPT_SHIFT + PREEMPT_BITS) -#define HARDIRQ_SHIFT (SOFTIRQ_SHIFT + SOFTIRQ_BITS) -#define PREEMPT_BITS 8 -#define SOFTIRQ_BITS 8 - -/* - * CPU hotplug. - */ - -struct notifier_block { - int (*notifier_call)(struct notifier_block *, unsigned long, void *); - struct notifier_block *next; - int priority; -}; - -#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ -#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ -#define CPU_UP_CANCELED 0x0004 /* CPU (unsigned)v NOT coming up */ -#define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ -#define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ -#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ -#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, - * not handling interrupts, soon dead */ -#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug - * lock is dropped */ - -/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend - * operation in progress - */ -#define CPU_TASKS_FROZEN 0x0010 - -#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) -#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) -#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN) -#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) -#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) -#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) -#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) - -/* Hibernation and suspend events */ -#define PM_HIBERNATION_PREPARE 0x0001 /* Going to hibernate */ -#define PM_POST_HIBERNATION 0x0002 /* Hibernation finished */ -#define PM_SUSPEND_PREPARE 0x0003 /* Going to suspend the system */ -#define PM_POST_SUSPEND 0x0004 /* Suspend finished */ -#define PM_RESTORE_PREPARE 0x0005 /* Going to restore a saved image */ -#define PM_POST_RESTORE 0x0006 /* Restore failed */ - -#define NOTIFY_DONE 0x0000 /* Don't care */ -#define NOTIFY_OK 0x0001 /* Suits me */ -#define NOTIFY_STOP_MASK 0x8000 /* Don't call further */ -#define NOTIFY_BAD (NOTIFY_STOP_MASK|0x0002) - /* Bad/Veto action */ -/* - * Clean way to return from the notifier and stop further calls. - */ -#define NOTIFY_STOP (NOTIFY_OK|NOTIFY_STOP_MASK) - -/* - * Bug checks. - */ - -#define BUG_ON(c) do { if (!(c)) abort(); } while (0) - -/* - * Initialization -- Must be called before calling any primitives. - */ - -static void smp_init(void) -{ - int i; - - spin_lock_init(&__thread_id_map_mutex); - __thread_id_map[0] = pthread_self(); - for (i = 1; i < NR_THREADS; i++) - __thread_id_map[i] = __THREAD_ID_MAP_EMPTY; - init_per_thread(smp_processor_id, 0); - if (pthread_key_create(&thread_id_key, NULL) != 0) { - perror("pthread_key_create"); - exit(-1); - } -} - -/* Taken from the Linux kernel source tree, so GPLv2-only!!! */ - -#ifndef _LINUX_LIST_H -#define _LINUX_LIST_H - -#define LIST_POISON1 ((void *) 0x00100100) -#define LIST_POISON2 ((void *) 0x00200200) - -#if 0 - -/* - * Simple doubly linked list implementation. - * - * Some of the internal functions ("__xxx") are useful when - * manipulating whole lists rather than single entries, as - * sometimes we already know the next/prev entries and we can - * generate better code by using them directly rather than - * using the generic single-entry routines. - */ - -struct cds_list_head { - struct cds_list_head *next, *prev; -}; - -#define CDS_LIST_HEAD_INIT(name) { &(name), &(name) } - -#define CDS_LIST_HEAD(name) \ - struct cds_list_head name = CDS_LIST_HEAD_INIT(name) - -static inline void CDS_INIT_LIST_HEAD(struct cds_list_head *list) -{ - list->next = list; - list->prev = list; -} - -/* - * Insert a new entry between two known consecutive entries. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -#ifndef CONFIG_DEBUG_LIST -static inline void __cds_list_add(struct cds_list_head *new, - struct cds_list_head *prev, - struct cds_list_head *next) -{ - next->prev = new; - new->next = next; - new->prev = prev; - prev->next = new; -} -#else -extern void __cds_list_add(struct cds_list_head *new, - struct cds_list_head *prev, - struct cds_list_head *next); -#endif - -/** - * cds_list_add - add a new entry - * @new: new entry to be added - * @head: list head to add it after - * - * Insert a new entry after the specified head. - * This is good for implementing stacks. - */ -static inline void cds_list_add(struct cds_list_head *new, struct cds_list_head *head) -{ - __cds_list_add(new, head, head->next); -} - - -/** - * cds_list_add_tail - add a new entry - * @new: new entry to be added - * @head: list head to add it before - * - * Insert a new entry before the specified head. - * This is useful for implementing queues. - */ -static inline void cds_list_add_tail(struct cds_list_head *new, struct cds_list_head *head) -{ - __cds_list_add(new, head->prev, head); -} - -/* - * Delete a list entry by making the prev/next entries - * point to each other. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -static inline void __cds_list_del(struct cds_list_head * prev, struct cds_list_head * next) -{ - next->prev = prev; - prev->next = next; -} - -/** - * cds_list_del - deletes entry from list. - * @entry: the element to delete from the list. - * Note: cds_list_empty() on entry does not return true after this, the entry is - * in an undefined state. - */ -#ifndef CONFIG_DEBUG_LIST -static inline void cds_list_del(struct cds_list_head *entry) -{ - __cds_list_del(entry->prev, entry->next); - entry->next = LIST_POISON1; - entry->prev = LIST_POISON2; -} -#else -extern void cds_list_del(struct cds_list_head *entry); -#endif - -/** - * cds_list_replace - replace old entry by new one - * @old : the element to be replaced - * @new : the new element to insert - * - * If @old was empty, it will be overwritten. - */ -static inline void cds_list_replace(struct cds_list_head *old, - struct cds_list_head *new) -{ - new->next = old->next; - new->next->prev = new; - new->prev = old->prev; - new->prev->next = new; -} - -static inline void cds_list_replace_init(struct cds_list_head *old, - struct cds_list_head *new) -{ - cds_list_replace(old, new); - CDS_INIT_LIST_HEAD(old); -} - -/** - * cds_list_del_init - deletes entry from list and reinitialize it. - * @entry: the element to delete from the list. - */ -static inline void cds_list_del_init(struct cds_list_head *entry) -{ - __cds_list_del(entry->prev, entry->next); - CDS_INIT_LIST_HEAD(entry); -} - -/** - * cds_list_move - delete from one list and add as another's head - * @list: the entry to move - * @head: the head that will precede our entry - */ -static inline void cds_list_move(struct cds_list_head *list, struct cds_list_head *head) -{ - __cds_list_del(list->prev, list->next); - cds_list_add(list, head); -} - -/** - * cds_list_move_tail - delete from one list and add as another's tail - * @list: the entry to move - * @head: the head that will follow our entry - */ -static inline void cds_list_move_tail(struct cds_list_head *list, - struct cds_list_head *head) -{ - __cds_list_del(list->prev, list->next); - cds_list_add_tail(list, head); -} - -/** - * list_is_last - tests whether @list is the last entry in list @head - * @list: the entry to test - * @head: the head of the list - */ -static inline int list_is_last(const struct cds_list_head *list, - const struct cds_list_head *head) -{ - return list->next == head; -} - -/** - * cds_list_empty - tests whether a list is empty - * @head: the list to test. - */ -static inline int cds_list_empty(const struct cds_list_head *head) -{ - return head->next == head; -} - -/** - * cds_list_empty_careful - tests whether a list is empty and not being modified - * @head: the list to test - * - * Description: - * tests whether a list is empty _and_ checks that no other CPU might be - * in the process of modifying either member (next or prev) - * - * NOTE: using cds_list_empty_careful() without synchronization - * can only be safe if the only activity that can happen - * to the list entry is cds_list_del_init(). Eg. it cannot be used - * if another CPU could re-list_add() it. - */ -static inline int cds_list_empty_careful(const struct cds_list_head *head) -{ - struct cds_list_head *next = head->next; - return (next == head) && (next == head->prev); -} - -/** - * list_is_singular - tests whether a list has just one entry. - * @head: the list to test. - */ -static inline int list_is_singular(const struct cds_list_head *head) -{ - return !list_empty(head) && (head->next == head->prev); -} - -static inline void __list_cut_position(struct cds_list_head *list, - struct cds_list_head *head, struct cds_list_head *entry) -{ - struct cds_list_head *new_first = entry->next; - list->next = head->next; - list->next->prev = list; - list->prev = entry; - entry->next = list; - head->next = new_first; - new_first->prev = head; -} - -/** - * list_cut_position - cut a list into two - * @list: a new list to add all removed entries - * @head: a list with entries - * @entry: an entry within head, could be the head itself - * and if so we won't cut the list - * - * This helper moves the initial part of @head, up to and - * including @entry, from @head to @list. You should - * pass on @entry an element you know is on @head. @list - * should be an empty list or a list you do not care about - * losing its data. - * - */ -static inline void list_cut_position(struct cds_list_head *list, - struct cds_list_head *head, struct cds_list_head *entry) -{ - if (cds_list_empty(head)) - return; - if (list_is_singular(head) && - (head->next != entry && head != entry)) - return; - if (entry == head) - CDS_INIT_LIST_HEAD(list); - else - __list_cut_position(list, head, entry); -} - -static inline void __cds_list_splice(const struct cds_list_head *list, - struct cds_list_head *prev, - struct cds_list_head *next) -{ - struct cds_list_head *first = list->next; - struct cds_list_head *last = list->prev; - - first->prev = prev; - prev->next = first; - - last->next = next; - next->prev = last; -} - -/** - * cds_list_splice - join two lists, this is designed for stacks - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static inline void cds_list_splice(const struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) - __cds_list_splice(list, head, head->next); -} - -/** - * cds_list_splice_tail - join two lists, each list being a queue - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static inline void cds_list_splice_tail(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) - __cds_list_splice(list, head->prev, head); -} - -/** - * cds_list_splice_init - join two lists and reinitialise the emptied list. - * @list: the new list to add. - * @head: the place to add it in the first list. - * - * The list at @list is reinitialised - */ -static inline void cds_list_splice_init(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) { - __cds_list_splice(list, head, head->next); - CDS_INIT_LIST_HEAD(list); - } -} - -/** - * cds_list_splice_tail_init - join two lists and reinitialise the emptied list - * @list: the new list to add. - * @head: the place to add it in the first list. - * - * Each of the lists is a queue. - * The list at @list is reinitialised - */ -static inline void cds_list_splice_tail_init(struct cds_list_head *list, - struct cds_list_head *head) -{ - if (!cds_list_empty(list)) { - __cds_list_splice(list, head->prev, head); - CDS_INIT_LIST_HEAD(list); - } -} - -/** - * cds_list_entry - get the struct for this entry - * @ptr: the &struct cds_list_head pointer. - * @type: the type of the struct this is embedded in. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_entry(ptr, type, member) \ - caa_container_of(ptr, type, member) - -/** - * list_first_entry - 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 list is expected to be not empty. - */ -#define list_first_entry(ptr, type, member) \ - cds_list_entry((ptr)->next, type, member) - -/** - * cds_list_for_each - iterate over a list - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - */ -#define cds_list_for_each(pos, head) \ - for (pos = (head)->next; prefetch(pos->next), pos != (head); \ - pos = pos->next) - -/** - * __cds_list_for_each - iterate over a list - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - * - * This variant differs from cds_list_for_each() in that it's the - * simplest possible list iteration code, no prefetching is done. - * Use this for code that knows the list to be very short (empty - * or 1 entry) most of the time. - */ -#define __cds_list_for_each(pos, head) \ - for (pos = (head)->next; pos != (head); pos = pos->next) - -/** - * cds_list_for_each_prev - iterate over a list backwards - * @pos: the &struct cds_list_head to use as a loop cursor. - * @head: the head for your list. - */ -#define cds_list_for_each_prev(pos, head) \ - for (pos = (head)->prev; prefetch(pos->prev), pos != (head); \ - pos = pos->prev) - -/** - * cds_list_for_each_safe - iterate over a list safe against removal of list entry - * @pos: the &struct cds_list_head to use as a loop cursor. - * @n: another &struct cds_list_head to use as temporary storage - * @head: the head for your list. - */ -#define cds_list_for_each_safe(pos, n, head) \ - for (pos = (head)->next, n = pos->next; pos != (head); \ - pos = n, n = pos->next) - -/** - * cds_list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry - * @pos: the &struct cds_list_head to use as a loop cursor. - * @n: another &struct cds_list_head to use as temporary storage - * @head: the head for your list. - */ -#define cds_list_for_each_prev_safe(pos, n, head) \ - for (pos = (head)->prev, n = pos->prev; \ - prefetch(pos->prev), pos != (head); \ - pos = n, n = pos->prev) - -/** - * cds_list_for_each_entry - iterate over list of given type - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry(pos, head, member) \ - for (pos = cds_list_entry((head)->next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_reverse - iterate backwards over list of given type. - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry_reverse(pos, head, member) \ - for (pos = cds_list_entry((head)->prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ - pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) - -/** - * list_prepare_entry - prepare a pos entry for use in cds_list_for_each_entry_continue() - * @pos: the type * to use as a start point - * @head: the head of the list - * @member: the name of the list_struct within the struct. - * - * Prepares a pos entry for use as a start point in cds_list_for_each_entry_continue(). - */ -#define list_prepare_entry(pos, head, member) \ - ((pos) ? : cds_list_entry(head, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_continue - continue iteration over list of given type - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Continue to iterate over list of given type, continuing after - * the current position. - */ -#define cds_list_for_each_entry_continue(pos, head, member) \ - for (pos = cds_list_entry(pos->member.next, typeof(*pos), member); \ - prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_continue_reverse - iterate backwards from the given point - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Start to iterate over list of given type backwards, continuing after - * the current position. - */ -#define cds_list_for_each_entry_continue_reverse(pos, head, member) \ - for (pos = cds_list_entry(pos->member.prev, typeof(*pos), member); \ - prefetch(pos->member.prev), &pos->member != (head); \ - pos = cds_list_entry(pos->member.prev, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_from - iterate over list of given type from the current point - * @pos: the type * to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type, continuing from current position. - */ -#define cds_list_for_each_entry_from(pos, head, member) \ - for (; prefetch(pos->member.next), &pos->member != (head); \ - pos = cds_list_entry(pos->member.next, typeof(*pos), member)) - -/** - * cds_list_for_each_entry_safe - iterate over list of given type safe against removal of list entry - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - */ -#define cds_list_for_each_entry_safe(pos, n, head, member) \ - for (pos = cds_list_entry((head)->next, typeof(*pos), member), \ - n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_continue - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type, continuing after current point, - * safe against removal of list entry. - */ -#define cds_list_for_each_entry_safe_continue(pos, n, head, member) \ - for (pos = cds_list_entry(pos->member.next, typeof(*pos), member), \ - n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_from - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate over list of given type from current point, safe against - * removal of list entry. - */ -#define cds_list_for_each_entry_safe_from(pos, n, head, member) \ - for (n = cds_list_entry(pos->member.next, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.next, typeof(*n), member)) - -/** - * cds_list_for_each_entry_safe_reverse - * @pos: the type * to use as a loop cursor. - * @n: another type * to use as temporary storage - * @head: the head for your list. - * @member: the name of the list_struct within the struct. - * - * Iterate backwards over list of given type, safe against removal - * of list entry. - */ -#define cds_list_for_each_entry_safe_reverse(pos, n, head, member) \ - for (pos = cds_list_entry((head)->prev, typeof(*pos), member), \ - n = cds_list_entry(pos->member.prev, typeof(*pos), member); \ - &pos->member != (head); \ - pos = n, n = cds_list_entry(n->member.prev, typeof(*n), member)) - -#endif //0 - -/* - * Double linked lists with a single pointer list head. - * Mostly useful for hash tables where the two pointer list head is - * too wasteful. - * You lose the ability to access the tail in O(1). - */ - -struct cds_hlist_head { - struct cds_hlist_node *first; -}; - -struct cds_hlist_node { - struct cds_hlist_node *next, **pprev; -}; - -#define HLIST_HEAD_INIT { .first = NULL } -#define HLIST_HEAD(name) struct cds_hlist_head name = { .first = NULL } -#define CDS_INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL) -static inline void INIT_HLIST_NODE(struct cds_hlist_node *h) -{ - h->next = NULL; - h->pprev = NULL; -} - -static inline int hlist_unhashed(const struct cds_hlist_node *h) -{ - return !h->pprev; -} - -static inline int hlist_empty(const struct cds_hlist_head *h) -{ - return !h->first; -} - -static inline void __cds_hlist_del(struct cds_hlist_node *n) -{ - struct cds_hlist_node *next = n->next; - struct cds_hlist_node **pprev = n->pprev; - *pprev = next; - if (next) - next->pprev = pprev; -} - -static inline void cds_hlist_del(struct cds_hlist_node *n) -{ - __cds_hlist_del(n); - n->next = LIST_POISON1; - n->pprev = LIST_POISON2; -} - -static inline void cds_hlist_del_init(struct cds_hlist_node *n) -{ - if (!hlist_unhashed(n)) { - __cds_hlist_del(n); - INIT_HLIST_NODE(n); - } -} - -static inline void cds_hlist_add_head(struct cds_hlist_node *n, struct cds_hlist_head *h) -{ - struct cds_hlist_node *first = h->first; - n->next = first; - if (first) - first->pprev = &n->next; - h->first = n; - n->pprev = &h->first; -} - -/* next must be != NULL */ -static inline void hlist_add_before(struct cds_hlist_node *n, - struct cds_hlist_node *next) -{ - n->pprev = next->pprev; - n->next = next; - next->pprev = &n->next; - *(n->pprev) = n; -} - -static inline void hlist_add_after(struct cds_hlist_node *n, - struct cds_hlist_node *next) -{ - next->next = n->next; - n->next = next; - next->pprev = &n->next; - - if(next->next) - next->next->pprev = &next->next; -} - -/* - * Move a list from one list head to another. Fixup the pprev - * reference of the first entry if it exists. - */ -static inline void hlist_move_list(struct cds_hlist_head *old, - struct cds_hlist_head *new) -{ - new->first = old->first; - if (new->first) - new->first->pprev = &new->first; - old->first = NULL; -} - -#define cds_hlist_entry(ptr, type, member) caa_container_of(ptr,type,member) - -#define cds_hlist_for_each(pos, head) \ - for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \ - pos = pos->next) - -#define cds_hlist_for_each_safe(pos, n, head) \ - for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \ - pos = n) - -/** - * cds_hlist_for_each_entry - iterate over list of given type - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @head: the head for your list. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry(tpos, pos, head, member) \ - for (pos = (head)->first; \ - pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_continue - iterate over a hlist continuing after current point - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_continue(tpos, pos, member) \ - for (pos = (pos)->next; \ - pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_from - iterate over a hlist continuing from current point - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_from(tpos, pos, member) \ - for (; pos && ({ prefetch(pos->next); 1;}) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = pos->next) - -/** - * cds_hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry - * @tpos: the type * to use as a loop cursor. - * @pos: the &struct cds_hlist_node to use as a loop cursor. - * @n: another &struct cds_hlist_node to use as temporary storage - * @head: the head for your list. - * @member: the name of the cds_hlist_node within the struct. - */ -#define cds_hlist_for_each_entry_safe(tpos, pos, n, head, member) \ - for (pos = (head)->first; \ - pos && ({ n = pos->next; 1; }) && \ - ({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \ - pos = n) - -#endif - -#endif