| 1 | // -*- Mode: CFA -*-
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| 2 | //
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| 3 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
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| 4 | //
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| 5 | // The contents of this file are covered under the licence agreement in the
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| 6 | // file "LICENCE" distributed with Cforall.
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| 7 | //
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| 8 | // kernel --
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| 9 | //
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| 10 | // Author : Thierry Delisle
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| 11 | // Created On : Tue Jan 17 12:27:26 2017
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| 12 | // Last Modified By : Thierry Delisle
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| 13 | // Last Modified On : --
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| 14 | // Update Count : 0
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| 15 | //
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| 16 |
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| 17 | #ifndef KERNEL_H
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| 18 | #define KERNEL_H
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| 19 |
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| 20 | #include <stdbool.h>
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| 21 |
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| 22 | #include "invoke.h"
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| 23 |
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| 24 | extern "C" {
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| 25 | #include <pthread.h>
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| 26 | }
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| 27 |
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| 28 | //-----------------------------------------------------------------------------
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| 29 | // Locks
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| 30 | bool try_lock ( spinlock * DEBUG_CTX_PARAM2 );
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| 31 | void lock ( spinlock * DEBUG_CTX_PARAM2 );
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| 32 | void lock_yield( spinlock * DEBUG_CTX_PARAM2 );
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| 33 | void unlock ( spinlock * );
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| 34 |
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| 35 | struct semaphore {
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| 36 | spinlock lock;
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| 37 | int count;
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| 38 | __thread_queue_t waiting;
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| 39 | };
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| 40 |
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| 41 | void ?{}(semaphore * this, int count = 1);
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| 42 | void ^?{}(semaphore * this);
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| 43 | void P(semaphore * this);
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| 44 | void V(semaphore * this);
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| 45 |
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| 46 |
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| 47 | //-----------------------------------------------------------------------------
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| 48 | // Cluster
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| 49 | struct cluster {
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| 50 | __thread_queue_t ready_queue;
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| 51 | spinlock lock;
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| 52 | };
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| 53 |
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| 54 | void ?{}(cluster * this);
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| 55 | void ^?{}(cluster * this);
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| 56 |
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| 57 | //-----------------------------------------------------------------------------
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| 58 | // Processor
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| 59 | enum FinishOpCode { No_Action, Release, Schedule, Release_Schedule, Release_Multi, Release_Multi_Schedule };
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| 60 |
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| 61 | //TODO use union, many of these fields are mutually exclusive (i.e. MULTI vs NOMULTI)
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| 62 | struct FinishAction {
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| 63 | FinishOpCode action_code;
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| 64 | thread_desc * thrd;
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| 65 | spinlock * lock;
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| 66 | spinlock ** locks;
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| 67 | unsigned short lock_count;
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| 68 | thread_desc ** thrds;
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| 69 | unsigned short thrd_count;
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| 70 | };
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| 71 | static inline void ?{}(FinishAction * this) {
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| 72 | this->action_code = No_Action;
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| 73 | this->thrd = NULL;
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| 74 | this->lock = NULL;
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| 75 | }
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| 76 | static inline void ^?{}(FinishAction * this) {}
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| 77 |
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| 78 | struct processor {
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| 79 | struct processorCtx_t * runner;
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| 80 | cluster * cltr;
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| 81 | pthread_t kernel_thread;
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| 82 |
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| 83 | semaphore terminated;
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| 84 | volatile bool is_terminated;
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| 85 |
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| 86 | struct FinishAction finish;
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| 87 |
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| 88 | struct alarm_node_t * preemption_alarm;
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| 89 | unsigned int preemption;
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| 90 |
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| 91 | bool pending_preemption;
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| 92 |
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| 93 | char * last_enable;
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| 94 | };
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| 95 |
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| 96 | void ?{}(processor * this);
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| 97 | void ?{}(processor * this, cluster * cltr);
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| 98 | void ^?{}(processor * this);
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| 99 |
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| 100 | #endif //KERNEL_H
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| 101 |
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| 102 | // Local Variables: //
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| 103 | // mode: CFA //
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| 104 | // tab-width: 6 //
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| 105 | // End: //
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