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| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 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 | |
| 38 | #include <arch/cpu.h> |
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| 39 | #include <proc/scheduler.h> |
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| 40 | #include <synch/spinlock.h> |
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| 41 | #include <synch/waitq.h> |
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| 42 | #include <arch/types.h> |
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| 43 | #include <typedefs.h> |
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| 44 | #include <arch/context.h> |
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| 173 | jermar | 45 | #include <config.h> |
| 788 | jermar | 46 | #include <adt/list.h> |
| 1002 | jermar | 47 | #include <mm/tlb.h> |
| 1 | jermar | 48 | |
| 173 | jermar | 49 | #define CPU_STACK_SIZE STACK_SIZE |
| 1 | jermar | 50 | |
| 681 | jermar | 51 | /** CPU structure. |
| 52 | * |
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| 53 | * There is one structure like this for every processor. |
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| 54 | */ |
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| 1 | jermar | 55 | struct cpu { |
| 623 | jermar | 56 | SPINLOCK_DECLARE(lock); |
| 681 | jermar | 57 | |
| 1002 | jermar | 58 | tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN]; |
| 59 | count_t tlb_messages_count; |
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| 60 | |||
| 1 | jermar | 61 | context_t saved_context; |
| 62 | |||
| 783 | palkovsky | 63 | atomic_t nrdy; |
| 1 | jermar | 64 | runq_t rq[RQ_COUNT]; |
| 483 | jermar | 65 | volatile count_t needs_relink; |
| 1 | jermar | 66 | |
| 623 | jermar | 67 | SPINLOCK_DECLARE(timeoutlock); |
| 1 | jermar | 68 | link_t timeout_active_head; |
| 69 | |||
| 1431 | jermar | 70 | count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here |
| 71 | so that clock() can react. This variable is |
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| 72 | CPU-local and can be only accessed when interrupts |
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| 73 | are disabled. */ |
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| 74 | |||
| 681 | jermar | 75 | /** |
| 76 | * Processor ID assigned by kernel. |
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| 77 | */ |
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| 1 | jermar | 78 | int id; |
| 681 | jermar | 79 | |
| 28 | jermar | 80 | int active; |
| 31 | jermar | 81 | int tlb_active; |
| 1 | jermar | 82 | |
| 1780 | jermar | 83 | uint16_t frequency_mhz; |
| 84 | uint32_t delay_loop_const; |
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| 1 | jermar | 85 | |
| 86 | cpu_arch_t arch; |
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| 75 | vana | 87 | |
| 88 | thread_t *fpu_owner; |
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| 1 | jermar | 89 | |
| 681 | jermar | 90 | /** |
| 91 | * Stack used by scheduler when there is no running thread. |
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| 92 | */ |
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| 1780 | jermar | 93 | uint8_t *stack; |
| 1 | jermar | 94 | }; |
| 95 | |||
| 96 | extern cpu_t *cpus; |
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| 97 | |||
| 98 | extern void cpu_init(void); |
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| 673 | jermar | 99 | extern void cpu_list(void); |
| 195 | vana | 100 | |
| 1 | jermar | 101 | extern void cpu_arch_init(void); |
| 102 | extern void cpu_identify(void); |
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| 103 | extern void cpu_print_report(cpu_t *m); |
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| 104 | |||
| 105 | #endif |
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| 1702 | cejka | 106 | |
| 1731 | jermar | 107 | /** @} |
| 1702 | cejka | 108 | */ |