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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 | |||
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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1 | jermar | 43 | |
173 | jermar | 44 | #define CPU_STACK_SIZE STACK_SIZE |
1 | jermar | 45 | |
2092 | decky | 46 | /** CPU structure. |
47 | * |
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48 | * There is one structure like this for every processor. |
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49 | */ |
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50 | typedef struct { |
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51 | SPINLOCK_DECLARE(lock); |
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52 | |||
53 | tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN]; |
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4581 | mejdrech | 54 | size_t tlb_messages_count; |
2092 | decky | 55 | |
56 | context_t saved_context; |
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57 | |||
58 | atomic_t nrdy; |
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59 | runq_t rq[RQ_COUNT]; |
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4581 | mejdrech | 60 | volatile size_t needs_relink; |
2092 | decky | 61 | |
62 | SPINLOCK_DECLARE(timeoutlock); |
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63 | link_t timeout_active_head; |
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64 | |||
4581 | mejdrech | 65 | size_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here |
2092 | decky | 66 | so that clock() can react. This variable is |
67 | CPU-local and can be only accessed when interrupts |
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68 | are disabled. */ |
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69 | |||
70 | /** |
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71 | * Processor ID assigned by kernel. |
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72 | */ |
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73 | unsigned int id; |
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74 | |||
75 | int active; |
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76 | int tlb_active; |
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77 | |||
78 | uint16_t frequency_mhz; |
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79 | uint32_t delay_loop_const; |
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80 | |||
81 | cpu_arch_t arch; |
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82 | |||
83 | struct thread *fpu_owner; |
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84 | |||
85 | /** |
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86 | * Stack used by scheduler when there is no running thread. |
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87 | */ |
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88 | uint8_t *stack; |
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89 | } cpu_t; |
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90 | |||
1 | jermar | 91 | extern cpu_t *cpus; |
92 | |||
93 | extern void cpu_init(void); |
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673 | jermar | 94 | extern void cpu_list(void); |
195 | vana | 95 | |
1 | jermar | 96 | extern void cpu_arch_init(void); |
97 | extern void cpu_identify(void); |
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98 | extern void cpu_print_report(cpu_t *m); |
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99 | |||
100 | #endif |
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1702 | cejka | 101 | |
1731 | jermar | 102 | /** @} |
1702 | cejka | 103 | */ |