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| 1 | jermar | 1 | /* |
| 2336 | mencl | 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 | |||
| 1731 | jermar | 29 | /** @addtogroup generic |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 1881 | jermar | 35 | #ifndef KERN_CPU_H_ |
| 36 | #define KERN_CPU_H_ |
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| 1 | jermar | 37 | |
| 2092 | decky | 38 | #include <mm/tlb.h> |
| 39 | #include <synch/spinlock.h> |
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| 40 | #include <proc/scheduler.h> |
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| 41 | #include <arch/cpu.h> |
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| 42 | #include <arch/context.h> |
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| 2336 | mencl | 43 | #ifdef CONFIG_TIMEOUT_EXTAVL_TREE |
| 44 | #include <adt/extavl.h> |
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| 45 | #endif |
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| 1 | jermar | 46 | |
| 2336 | mencl | 47 | |
| 173 | jermar | 48 | #define CPU_STACK_SIZE STACK_SIZE |
| 1 | jermar | 49 | |
| 2092 | decky | 50 | /** CPU structure. |
| 51 | * |
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| 52 | * There is one structure like this for every processor. |
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| 53 | */ |
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| 2336 | mencl | 54 | typedef struct cpu { |
| 2092 | decky | 55 | SPINLOCK_DECLARE(lock); |
| 56 | |||
| 57 | tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN]; |
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| 58 | count_t tlb_messages_count; |
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| 59 | |||
| 60 | context_t saved_context; |
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| 61 | |||
| 62 | atomic_t nrdy; |
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| 63 | runq_t rq[RQ_COUNT]; |
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| 64 | volatile count_t needs_relink; |
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| 65 | |||
| 66 | SPINLOCK_DECLARE(timeoutlock); |
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| 2336 | mencl | 67 | #ifdef CONFIG_TIMEOUT_EXTAVL_TREE |
| 68 | /** Extended AVL tree structure. */ |
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| 69 | extavltree_t timeout_active_tree; |
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| 70 | #else |
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| 71 | /** Head of list of timeouts. */ |
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| 2092 | decky | 72 | link_t timeout_active_head; |
| 2336 | mencl | 73 | #endif |
| 2092 | decky | 74 | |
| 75 | count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here |
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| 76 | so that clock() can react. This variable is |
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| 77 | CPU-local and can be only accessed when interrupts |
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| 78 | are disabled. */ |
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| 79 | |||
| 80 | /** |
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| 81 | * Processor ID assigned by kernel. |
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| 82 | */ |
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| 83 | unsigned int id; |
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| 84 | |||
| 85 | int active; |
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| 86 | int tlb_active; |
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| 87 | |||
| 88 | uint16_t frequency_mhz; |
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| 89 | uint32_t delay_loop_const; |
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| 90 | |||
| 91 | cpu_arch_t arch; |
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| 92 | |||
| 93 | struct thread *fpu_owner; |
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| 94 | |||
| 95 | /** |
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| 96 | * Stack used by scheduler when there is no running thread. |
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| 97 | */ |
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| 98 | uint8_t *stack; |
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| 99 | } cpu_t; |
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| 100 | |||
| 1 | jermar | 101 | extern cpu_t *cpus; |
| 102 | |||
| 103 | extern void cpu_init(void); |
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| 673 | jermar | 104 | extern void cpu_list(void); |
| 195 | vana | 105 | |
| 1 | jermar | 106 | extern void cpu_arch_init(void); |
| 107 | extern void cpu_identify(void); |
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| 108 | extern void cpu_print_report(cpu_t *m); |
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| 109 | |||
| 110 | #endif |
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| 1702 | cejka | 111 | |
| 1731 | jermar | 112 | /** @} |
| 1702 | cejka | 113 | */ |