[75f3522] | 1 | // |
---|
| 2 | // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo |
---|
| 3 | // |
---|
| 4 | // The contents of this file are covered under the licence agreement in the |
---|
| 5 | // file "LICENCE" distributed with Cforall. |
---|
| 6 | // |
---|
[73abe95] | 7 | // kernel_private.hfa -- |
---|
[75f3522] | 8 | // |
---|
| 9 | // Author : Thierry Delisle |
---|
| 10 | // Created On : Mon Feb 13 12:27:26 2017 |
---|
[6b0b624] | 11 | // Last Modified By : Peter A. Buhr |
---|
[1805b1b] | 12 | // Last Modified On : Sat Nov 30 19:25:02 2019 |
---|
| 13 | // Update Count : 8 |
---|
[75f3522] | 14 | // |
---|
| 15 | |
---|
[6b0b624] | 16 | #pragma once |
---|
[75f3522] | 17 | |
---|
[58b6d1b] | 18 | #include "kernel.hfa" |
---|
| 19 | #include "thread.hfa" |
---|
[75f3522] | 20 | |
---|
[73abe95] | 21 | #include "alarm.hfa" |
---|
[fa21ac9] | 22 | |
---|
[4aa2fb2] | 23 | |
---|
[75f3522] | 24 | //----------------------------------------------------------------------------- |
---|
| 25 | // Scheduler |
---|
[1c273d0] | 26 | |
---|
| 27 | extern "C" { |
---|
[2026bb6] | 28 | void disable_interrupts() OPTIONAL_THREAD; |
---|
[969b3fe] | 29 | void enable_interrupts_noPoll(); |
---|
[36982fc] | 30 | void enable_interrupts( __cfaabi_dbg_ctx_param ); |
---|
[1c273d0] | 31 | } |
---|
| 32 | |
---|
[348006f] | 33 | void ScheduleThread( thread_desc * ); |
---|
[1c273d0] | 34 | static inline void WakeThread( thread_desc * thrd ) { |
---|
| 35 | if( !thrd ) return; |
---|
| 36 | |
---|
[722c0848] | 37 | verify(thrd->state == Inactive); |
---|
| 38 | |
---|
[1c273d0] | 39 | disable_interrupts(); |
---|
| 40 | ScheduleThread( thrd ); |
---|
[36982fc] | 41 | enable_interrupts( __cfaabi_dbg_ctx ); |
---|
[1c273d0] | 42 | } |
---|
[348006f] | 43 | thread_desc * nextThread(cluster * this); |
---|
[75f3522] | 44 | |
---|
[e60e0dc] | 45 | //Block current thread and release/wake-up the following resources |
---|
[82ff5845] | 46 | void BlockInternal(void); |
---|
[ea7d2b0] | 47 | void BlockInternal(__spinlock_t * lock); |
---|
[82ff5845] | 48 | void BlockInternal(thread_desc * thrd); |
---|
[ea7d2b0] | 49 | void BlockInternal(__spinlock_t * lock, thread_desc * thrd); |
---|
| 50 | void BlockInternal(__spinlock_t * locks [], unsigned short count); |
---|
| 51 | void BlockInternal(__spinlock_t * locks [], unsigned short count, thread_desc * thrds [], unsigned short thrd_count); |
---|
[09800e9] | 52 | void BlockInternal(__finish_callback_fptr_t callback); |
---|
[ea7d2b0] | 53 | void LeaveThread(__spinlock_t * lock, thread_desc * thrd); |
---|
[db6f06a] | 54 | |
---|
[75f3522] | 55 | //----------------------------------------------------------------------------- |
---|
| 56 | // Processor |
---|
| 57 | void main(processorCtx_t *); |
---|
[85b1deb] | 58 | |
---|
[1805b1b] | 59 | void * create_pthread( pthread_t *, void * (*)(void *), void * ); |
---|
| 60 | |
---|
[85b1deb] | 61 | static inline void wake_fast(processor * this) { |
---|
| 62 | __cfaabi_dbg_print_safe("Kernel : Waking up processor %p\n", this); |
---|
| 63 | post( this->idleLock ); |
---|
| 64 | } |
---|
| 65 | |
---|
| 66 | static inline void wake(processor * this) { |
---|
| 67 | disable_interrupts(); |
---|
| 68 | wake_fast(this); |
---|
| 69 | enable_interrupts( __cfaabi_dbg_ctx ); |
---|
| 70 | } |
---|
[75f3522] | 71 | |
---|
[e60e0dc] | 72 | struct event_kernel_t { |
---|
[fa21ac9] | 73 | alarm_list_t alarms; |
---|
[ea7d2b0] | 74 | __spinlock_t lock; |
---|
[fa21ac9] | 75 | }; |
---|
| 76 | |
---|
[e60e0dc] | 77 | extern event_kernel_t * event_kernel; |
---|
| 78 | |
---|
[d8548e2] | 79 | struct __cfa_kernel_preemption_state_t { |
---|
[b69ea6b] | 80 | bool enabled; |
---|
| 81 | bool in_progress; |
---|
| 82 | unsigned short disable_count; |
---|
| 83 | }; |
---|
| 84 | |
---|
[afc2427] | 85 | extern volatile thread_local __cfa_kernel_preemption_state_t preemption_state __attribute__ ((tls_model ( "initial-exec" ))); |
---|
[c81ebf9] | 86 | |
---|
[75f3522] | 87 | //----------------------------------------------------------------------------- |
---|
| 88 | // Threads |
---|
| 89 | extern "C" { |
---|
| 90 | forall(dtype T | is_thread(T)) |
---|
| 91 | void CtxInvokeThread(T * this); |
---|
| 92 | } |
---|
| 93 | |
---|
[c3acb841] | 94 | extern void ThreadCtxSwitch(coroutine_desc * src, coroutine_desc * dst); |
---|
[75f3522] | 95 | |
---|
[f7d6bb0] | 96 | __cfaabi_dbg_debug_do( |
---|
| 97 | extern void __cfaabi_dbg_thread_register ( thread_desc * thrd ); |
---|
| 98 | extern void __cfaabi_dbg_thread_unregister( thread_desc * thrd ); |
---|
| 99 | ) |
---|
| 100 | |
---|
[969b3fe] | 101 | //----------------------------------------------------------------------------- |
---|
| 102 | // Utils |
---|
| 103 | #define KERNEL_STORAGE(T,X) static char storage_##X[sizeof(T)] |
---|
| 104 | |
---|
[21184e3] | 105 | static inline uint32_t tls_rand() { |
---|
| 106 | kernelTLS.rand_seed ^= kernelTLS.rand_seed << 6; |
---|
| 107 | kernelTLS.rand_seed ^= kernelTLS.rand_seed >> 21; |
---|
| 108 | kernelTLS.rand_seed ^= kernelTLS.rand_seed << 7; |
---|
| 109 | return kernelTLS.rand_seed; |
---|
| 110 | } |
---|
| 111 | |
---|
[de94a60] | 112 | |
---|
[a1a17a74] | 113 | void doregister( struct cluster & cltr ); |
---|
| 114 | void unregister( struct cluster & cltr ); |
---|
[de94a60] | 115 | |
---|
[a1a17a74] | 116 | void doregister( struct cluster * cltr, struct thread_desc & thrd ); |
---|
| 117 | void unregister( struct cluster * cltr, struct thread_desc & thrd ); |
---|
[de94a60] | 118 | |
---|
| 119 | void doregister( struct cluster * cltr, struct processor * proc ); |
---|
| 120 | void unregister( struct cluster * cltr, struct processor * proc ); |
---|
| 121 | |
---|
[75f3522] | 122 | // Local Variables: // |
---|
| 123 | // mode: c // |
---|
| 124 | // tab-width: 4 // |
---|
[4aa2fb2] | 125 | // End: // |
---|