| 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // kernel_private.h -- |
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| 8 | // |
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| 9 | // Author : Thierry Delisle |
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| 10 | // Created On : Mon Feb 13 12:27:26 2017 |
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| 11 | // Last Modified By : Peter A. Buhr |
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| 12 | // Last Modified On : Sat Jul 22 09:58:09 2017 |
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| 13 | // Update Count : 2 |
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| 14 | // |
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| 15 | |
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| 16 | #pragma once |
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| 17 | |
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| 18 | #include "kernel" |
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| 19 | #include "thread" |
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| 20 | |
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| 21 | #include "alarm.h" |
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| 22 | |
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| 23 | |
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| 24 | //----------------------------------------------------------------------------- |
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| 25 | // Scheduler |
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| 26 | |
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| 27 | extern "C" { |
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| 28 | void disable_interrupts(); |
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| 29 | void enable_interrupts_noPoll(); |
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| 30 | void enable_interrupts( __cfaabi_dbg_ctx_param ); |
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| 31 | } |
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| 32 | |
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| 33 | void ScheduleThread( thread_desc * ); |
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| 34 | static inline void WakeThread( thread_desc * thrd ) { |
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| 35 | if( !thrd ) return; |
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| 36 | |
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| 37 | disable_interrupts(); |
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| 38 | ScheduleThread( thrd ); |
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| 39 | enable_interrupts( __cfaabi_dbg_ctx ); |
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| 40 | } |
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| 41 | thread_desc * nextThread(cluster * this); |
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| 42 | |
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| 43 | //Block current thread and release/wake-up the following resources |
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| 44 | void BlockInternal(void); |
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| 45 | void BlockInternal(__spinlock_t * lock); |
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| 46 | void BlockInternal(thread_desc * thrd); |
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| 47 | void BlockInternal(__spinlock_t * lock, thread_desc * thrd); |
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| 48 | void BlockInternal(__spinlock_t * locks [], unsigned short count); |
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| 49 | void BlockInternal(__spinlock_t * locks [], unsigned short count, thread_desc * thrds [], unsigned short thrd_count); |
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| 50 | void LeaveThread(__spinlock_t * lock, thread_desc * thrd); |
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| 51 | |
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| 52 | //----------------------------------------------------------------------------- |
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| 53 | // Processor |
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| 54 | coroutine processorCtx_t { |
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| 55 | processor * proc; |
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| 56 | }; |
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| 57 | |
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| 58 | void main(processorCtx_t *); |
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| 59 | void start(processor * this); |
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| 60 | void runThread(processor * this, thread_desc * dst); |
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| 61 | void finishRunning(processor * this); |
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| 62 | void spin(processor * this, unsigned int * spin_count); |
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| 63 | |
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| 64 | struct event_kernel_t { |
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| 65 | alarm_list_t alarms; |
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| 66 | __spinlock_t lock; |
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| 67 | }; |
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| 68 | |
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| 69 | extern event_kernel_t * event_kernel; |
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| 70 | |
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| 71 | extern thread_local coroutine_desc * volatile this_coroutine; |
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| 72 | extern thread_local thread_desc * volatile this_thread; |
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| 73 | extern thread_local processor * volatile this_processor; |
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| 74 | |
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| 75 | extern volatile thread_local bool preemption_in_progress; |
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| 76 | extern volatile thread_local unsigned short disable_preempt_count; |
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| 77 | |
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| 78 | //----------------------------------------------------------------------------- |
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| 79 | // Threads |
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| 80 | extern "C" { |
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| 81 | forall(dtype T | is_thread(T)) |
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| 82 | void CtxInvokeThread(T * this); |
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| 83 | } |
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| 84 | |
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| 85 | extern void ThreadCtxSwitch(coroutine_desc * src, coroutine_desc * dst); |
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| 86 | |
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| 87 | //----------------------------------------------------------------------------- |
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| 88 | // Utils |
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| 89 | #define KERNEL_STORAGE(T,X) static char storage_##X[sizeof(T)] |
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| 90 | |
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| 91 | // Local Variables: // |
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| 92 | // mode: c // |
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| 93 | // tab-width: 4 // |
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| 94 | // End: // |
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