[75f3522] | 1 | // -*- Mode: CFA -*- |
---|
| 2 | // |
---|
| 3 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo |
---|
| 4 | // |
---|
| 5 | // The contents of this file are covered under the licence agreement in the |
---|
| 6 | // file "LICENCE" distributed with Cforall. |
---|
| 7 | // |
---|
[75a17f1] | 8 | // kernel_private.h -- |
---|
[75f3522] | 9 | // |
---|
| 10 | // Author : Thierry Delisle |
---|
| 11 | // Created On : Mon Feb 13 12:27:26 2017 |
---|
| 12 | // Last Modified By : Thierry Delisle |
---|
| 13 | // Last Modified On : -- |
---|
| 14 | // Update Count : 0 |
---|
| 15 | // |
---|
| 16 | |
---|
| 17 | #ifndef KERNEL_PRIVATE_H |
---|
| 18 | #define KERNEL_PRIVATE_H |
---|
| 19 | |
---|
| 20 | #include "kernel" |
---|
[75a17f1] | 21 | #include "thread" |
---|
[75f3522] | 22 | |
---|
[fa21ac9] | 23 | #include "alarm.h" |
---|
| 24 | |
---|
[4aa2fb2] | 25 | #include "libhdr.h" |
---|
| 26 | |
---|
[75f3522] | 27 | //----------------------------------------------------------------------------- |
---|
| 28 | // Scheduler |
---|
[348006f] | 29 | void ScheduleThread( thread_desc * ); |
---|
| 30 | thread_desc * nextThread(cluster * this); |
---|
[75f3522] | 31 | |
---|
[0c78741] | 32 | void ScheduleInternal(void); |
---|
[db6f06a] | 33 | void ScheduleInternal(spinlock * lock); |
---|
[348006f] | 34 | void ScheduleInternal(thread_desc * thrd); |
---|
| 35 | void ScheduleInternal(spinlock * lock, thread_desc * thrd); |
---|
[0c78741] | 36 | void ScheduleInternal(spinlock ** locks, unsigned short count); |
---|
| 37 | void ScheduleInternal(spinlock ** locks, unsigned short count, thread_desc ** thrds, unsigned short thrd_count); |
---|
[db6f06a] | 38 | |
---|
[75f3522] | 39 | //----------------------------------------------------------------------------- |
---|
| 40 | // Processor |
---|
[fa21ac9] | 41 | coroutine processorCtx_t { |
---|
[75f3522] | 42 | processor * proc; |
---|
| 43 | }; |
---|
| 44 | |
---|
| 45 | void main(processorCtx_t *); |
---|
[db6f06a] | 46 | void start(processor * this); |
---|
[348006f] | 47 | void runThread(processor * this, thread_desc * dst); |
---|
[db6f06a] | 48 | void finishRunning(processor * this); |
---|
[75f3522] | 49 | void spin(processor * this, unsigned int * spin_count); |
---|
| 50 | |
---|
[fa21ac9] | 51 | struct system_proc_t { |
---|
| 52 | processor proc; |
---|
| 53 | |
---|
| 54 | alarm_list_t alarms; |
---|
| 55 | spinlock alarm_lock; |
---|
[c81ebf9] | 56 | |
---|
| 57 | bool pending_alarm; |
---|
[fa21ac9] | 58 | }; |
---|
| 59 | |
---|
| 60 | extern cluster * systemCluster; |
---|
| 61 | extern system_proc_t * systemProcessor; |
---|
[c81ebf9] | 62 | extern thread_local processor * this_processor; |
---|
| 63 | |
---|
| 64 | static inline void disable_interrupts() { |
---|
| 65 | __attribute__((unused)) unsigned short prev = __atomic_fetch_add_2( &this_processor->disable_preempt_count, 1, __ATOMIC_SEQ_CST ); |
---|
| 66 | assert( prev != (unsigned short) -1 ); |
---|
| 67 | } |
---|
| 68 | |
---|
| 69 | static inline void enable_interrupts_noRF() { |
---|
[4aa2fb2] | 70 | __attribute__((unused)) unsigned short prev = __atomic_fetch_add_2( &this_processor->disable_preempt_count, -1, __ATOMIC_SEQ_CST ); |
---|
| 71 | verify( prev != (unsigned short) 0 ); |
---|
[c81ebf9] | 72 | } |
---|
| 73 | |
---|
| 74 | static inline void enable_interrupts() { |
---|
[4aa2fb2] | 75 | __attribute__((unused)) unsigned short prev = __atomic_fetch_add_2( &this_processor->disable_preempt_count, -1, __ATOMIC_SEQ_CST ); |
---|
| 76 | verify( prev != (unsigned short) 0 ); |
---|
[c81ebf9] | 77 | if( prev == 1 && this_processor->pending_preemption ) { |
---|
| 78 | ScheduleInternal( this_processor->current_thread ); |
---|
| 79 | this_processor->pending_preemption = false; |
---|
| 80 | } |
---|
| 81 | } |
---|
[fa21ac9] | 82 | |
---|
[75f3522] | 83 | //----------------------------------------------------------------------------- |
---|
| 84 | // Threads |
---|
| 85 | extern "C" { |
---|
| 86 | forall(dtype T | is_thread(T)) |
---|
| 87 | void CtxInvokeThread(T * this); |
---|
| 88 | } |
---|
| 89 | |
---|
[c3acb841] | 90 | extern void ThreadCtxSwitch(coroutine_desc * src, coroutine_desc * dst); |
---|
[75f3522] | 91 | |
---|
| 92 | #endif //KERNEL_PRIVATE_H |
---|
| 93 | |
---|
| 94 | // Local Variables: // |
---|
| 95 | // mode: c // |
---|
| 96 | // tab-width: 4 // |
---|
[4aa2fb2] | 97 | // End: // |
---|