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| Rev | Author | Line No. | Line |
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| 1 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2001-2004 Jakub Jermar |
| 1 | jermar | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1820 | decky | 29 | /** @addtogroup genericproc |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 1888 | jermar | 35 | #ifndef KERN_SCHEDULER_H_ |
| 36 | #define KERN_SCHEDULER_H_ |
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| 1 | jermar | 37 | |
| 38 | #include <synch/spinlock.h> |
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| 39 | #include <time/clock.h> /* HZ */ |
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| 1104 | jermar | 40 | #include <atomic.h> |
| 788 | jermar | 41 | #include <adt/list.h> |
| 1 | jermar | 42 | |
| 43 | #define RQ_COUNT 16 |
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| 44 | #define NEEDS_RELINK_MAX (HZ) |
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| 45 | |||
| 483 | jermar | 46 | /** Scheduler run queue structure. */ |
| 2081 | decky | 47 | typedef struct { |
| 623 | jermar | 48 | SPINLOCK_DECLARE(lock); |
| 410 | jermar | 49 | link_t rq_head; /**< List of ready threads. */ |
| 4691 | svoboda | 50 | size_t n; /**< Number of threads in rq_ready. */ |
| 2081 | decky | 51 | } runq_t; |
| 1 | jermar | 52 | |
| 475 | jermar | 53 | extern atomic_t nrdy; |
| 1 | jermar | 54 | extern void scheduler_init(void); |
| 55 | |||
| 309 | palkovsky | 56 | extern void scheduler_fpu_lazy_request(void); |
| 1 | jermar | 57 | extern void scheduler(void); |
| 58 | extern void kcpulb(void *arg); |
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| 59 | |||
| 775 | palkovsky | 60 | extern void sched_print_list(void); |
| 897 | jermar | 61 | |
| 22 | jermar | 62 | /* |
| 63 | * To be defined by architectures: |
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| 64 | */ |
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| 1187 | jermar | 65 | extern void before_task_runs_arch(void); |
| 52 | vana | 66 | extern void before_thread_runs_arch(void); |
| 897 | jermar | 67 | extern void after_thread_ran_arch(void); |
| 22 | jermar | 68 | |
| 1 | jermar | 69 | #endif |
| 1702 | cejka | 70 | |
| 1820 | decky | 71 | /** @} |
| 1702 | cejka | 72 | */ |