| 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 terminate(processor * this);
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| 63 | void spin(processor * this, unsigned int * spin_count);
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| 64 |
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| 65 | struct event_kernel_t {
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| 66 | alarm_list_t alarms;
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| 67 | __spinlock_t lock;
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| 68 | };
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| 69 |
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| 70 | extern event_kernel_t * event_kernel;
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| 71 |
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| 72 | extern thread_local coroutine_desc * volatile this_coroutine;
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| 73 | extern thread_local thread_desc * volatile this_thread;
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| 74 | extern thread_local processor * volatile this_processor;
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| 75 |
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| 76 | // extern volatile thread_local bool preemption_in_progress;
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| 77 | // extern volatile thread_local bool preemption_enabled;
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| 78 | // extern volatile thread_local unsigned short disable_preempt_count;
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| 79 |
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| 80 | struct __cfa_kernel_preemption_data_t {
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| 81 | bool enabled;
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| 82 | bool in_progress;
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| 83 | unsigned short disable_count;
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| 84 | };
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| 85 |
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| 86 | extern volatile thread_local __cfa_kernel_preemption_data_t preemption;
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| 87 |
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| 88 | //-----------------------------------------------------------------------------
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| 89 | // Threads
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| 90 | extern "C" {
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| 91 | forall(dtype T | is_thread(T))
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| 92 | void CtxInvokeThread(T * this);
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| 93 | }
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| 94 |
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| 95 | extern void ThreadCtxSwitch(coroutine_desc * src, coroutine_desc * dst);
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| 96 |
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| 97 | __cfaabi_dbg_debug_do(
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| 98 | extern void __cfaabi_dbg_thread_register ( thread_desc * thrd );
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| 99 | extern void __cfaabi_dbg_thread_unregister( thread_desc * thrd );
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| 100 | )
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| 101 |
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| 102 | //-----------------------------------------------------------------------------
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| 103 | // Utils
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| 104 | #define KERNEL_STORAGE(T,X) static char storage_##X[sizeof(T)]
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| 105 |
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| 106 | // Local Variables: //
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| 107 | // mode: c //
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| 108 | // tab-width: 4 //
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| 109 | // End: //
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