diff options
| -rw-r--r-- | include/rthw.h | 12 | ||||
| -rw-r--r-- | include/rtthread.h | 21 | ||||
| -rw-r--r-- | src/SConscript | 3 | ||||
| -rw-r--r-- | src/cpu.c | 53 |
4 files changed, 42 insertions, 47 deletions
diff --git a/include/rthw.h b/include/rthw.h index a77f2c1e46..2a602dcfe7 100644 --- a/include/rthw.h +++ b/include/rthw.h @@ -143,10 +143,10 @@ typedef union { } tickets; } rt_hw_spinlock_t; -typedef struct +struct rt_spinlock { rt_hw_spinlock_t lock; -} rt_spinlock_t; +}; void rt_hw_spin_lock_init(rt_hw_spinlock_t *lock); void rt_hw_spin_lock(rt_hw_spinlock_t *lock); @@ -187,16 +187,8 @@ void rt_hw_secondary_cpu_idle_exec(void); #define rt_hw_spin_lock(lock) *(lock) = rt_hw_interrupt_disable() #define rt_hw_spin_unlock(lock) rt_hw_interrupt_enable(*(lock)) -typedef int rt_spinlock_t; - #endif -void rt_spin_lock_init(rt_spinlock_t *lock); -void rt_spin_lock(rt_spinlock_t *lock); -void rt_spin_unlock(rt_spinlock_t *lock); -rt_base_t rt_spin_lock_irqsave(rt_spinlock_t *lock); -void rt_spin_unlock_irqrestore(rt_spinlock_t *lock, rt_base_t level); - #ifdef __cplusplus } #endif diff --git a/include/rtthread.h b/include/rtthread.h index d703f36268..13a1a4424b 100644 --- a/include/rtthread.h +++ b/include/rtthread.h @@ -391,6 +391,27 @@ rt_err_t rt_mq_recv(rt_mq_t mq, rt_err_t rt_mq_control(rt_mq_t mq, int cmd, void *arg); #endif +/* + * spinlock + */ +#ifdef RT_USING_SMP +struct rt_spinlock; + +void rt_spin_lock_init(struct rt_spinlock *lock); +void rt_spin_lock(struct rt_spinlock *lock); +void rt_spin_unlock(struct rt_spinlock *lock); +rt_base_t rt_spin_lock_irqsave(struct rt_spinlock *lock); +void rt_spin_unlock_irqrestore(struct rt_spinlock *lock, rt_base_t level); + +#else +#define rt_spin_lock_init(lock) /* nothing */ +#define rt_spin_lock(lock) rt_enter_critical() +#define rt_spin_unlock(lock) rt_exit_critical() +#define rt_spin_lock_irqsave(lock) rt_hw_interrupt_disable() +#define rt_spin_unlock_irqrestore(lock, level) rt_hw_interrupt_enable(level) + +#endif + /**@}*/ #ifdef RT_USING_DEVICE diff --git a/src/SConscript b/src/SConscript index ea6e19318f..82c3b8aaf1 100644 --- a/src/SConscript +++ b/src/SConscript @@ -26,6 +26,9 @@ if GetDepend('RT_USING_MEMHEAP') == False: if GetDepend('RT_USING_DEVICE') == False: SrcRemove(src, ['device.c']) +if GetDepend('RT_USING_SMP') == False: + SrcRemove(src, ['cpu.c']) + group = DefineGroup('Kernel', src, depend = [''], CPPPATH = CPPPATH) Return('group') @@ -12,9 +12,12 @@ #include <rthw.h> #ifdef RT_USING_SMP -/*********************************** +static struct rt_cpu rt_cpus[RT_CPUS_NR]; +rt_hw_spinlock_t _cpus_lock; + +/* * disable scheduler - ***********************************/ + */ static void rt_preempt_disable(void) { register rt_base_t level; @@ -23,7 +26,7 @@ static void rt_preempt_disable(void) /* disable interrupt */ level = rt_hw_local_irq_disable(); - current_thread = rt_cpu_self()->current_thread; + current_thread = rt_thread_self(); if (!current_thread) { rt_hw_local_irq_enable(level); @@ -37,9 +40,9 @@ static void rt_preempt_disable(void) rt_hw_local_irq_enable(level); } -/*********************************** - * restore scheduler - ***********************************/ +/* + * enable scheduler + */ static void rt_preempt_enable(void) { register rt_base_t level; @@ -48,7 +51,7 @@ static void rt_preempt_enable(void) /* disable interrupt */ level = rt_hw_local_irq_disable(); - current_thread = rt_cpu_self()->current_thread; + current_thread = rt_thread_self(); if (!current_thread) { rt_hw_local_irq_enable(level); @@ -62,73 +65,49 @@ static void rt_preempt_enable(void) /* enable interrupt */ rt_hw_local_irq_enable(level); } -#endif -void rt_spin_lock_init(rt_spinlock_t *lock) +void rt_spin_lock_init(struct rt_spinlock *lock) { -#ifdef RT_USING_SMP rt_hw_spin_lock_init(&lock->lock); -#endif } RTM_EXPORT(rt_spin_lock_init) -void rt_spin_lock(rt_spinlock_t *lock) +void rt_spin_lock(struct rt_spinlock *lock) { -#ifdef RT_USING_SMP rt_preempt_disable(); rt_hw_spin_lock(&lock->lock); -#else - rt_enter_critical(); -#endif } RTM_EXPORT(rt_spin_lock) -void rt_spin_unlock(rt_spinlock_t *lock) +void rt_spin_unlock(struct rt_spinlock *lock) { -#ifdef RT_USING_SMP rt_hw_spin_unlock(&lock->lock); rt_preempt_enable(); -#else - rt_exit_critical(); -#endif } RTM_EXPORT(rt_spin_unlock) -rt_base_t rt_spin_lock_irqsave(rt_spinlock_t *lock) +rt_base_t rt_spin_lock_irqsave(struct rt_spinlock *lock) { unsigned long level; -#ifdef RT_USING_SMP rt_preempt_disable(); level = rt_hw_local_irq_disable(); rt_hw_spin_lock(&lock->lock); return level; -#else - return rt_hw_interrupt_disable(); -#endif } RTM_EXPORT(rt_spin_lock_irqsave) -void rt_spin_unlock_irqrestore(rt_spinlock_t *lock, rt_base_t level) +void rt_spin_unlock_irqrestore(struct rt_spinlock *lock, rt_base_t level) { -#ifdef RT_USING_SMP rt_hw_spin_unlock(&lock->lock); rt_hw_local_irq_enable(level); rt_preempt_enable(); -#else - rt_hw_interrupt_enable(level); -#endif } RTM_EXPORT(rt_spin_unlock_irqrestore) -#ifdef RT_USING_SMP - -static struct rt_cpu rt_cpus[RT_CPUS_NR]; -rt_hw_spinlock_t _cpus_lock; - /** * This fucntion will return current cpu. */ @@ -155,7 +134,7 @@ rt_base_t rt_cpus_lock(void) pcpu = rt_cpu_self(); if (pcpu->current_thread != RT_NULL) { - register rt_uint16_t lock_nest = pcpu->current_thread->cpus_lock_nest; + register rt_ubase_t lock_nest = pcpu->current_thread->cpus_lock_nest; pcpu->current_thread->cpus_lock_nest++; if (lock_nest == 0) |