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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 | |||
29 | #ifndef __CPU_H__ |
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30 | #define __CPU_H__ |
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31 | |||
32 | #include <arch/cpu.h> |
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33 | #include <proc/thread.h> |
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34 | #include <proc/task.h> |
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35 | #include <proc/scheduler.h> |
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36 | #include <time/clock.h> |
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37 | #include <synch/spinlock.h> |
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38 | #include <synch/waitq.h> |
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39 | #include <arch/types.h> |
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40 | #include <typedefs.h> |
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41 | #include <arch/context.h> |
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42 | |||
43 | #define CPU_STACK_SIZE (4096) |
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44 | |||
45 | struct cpu { |
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46 | spinlock_t lock; |
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47 | context_t saved_context; |
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48 | |||
49 | volatile int nrdy; |
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50 | runq_t rq[RQ_COUNT]; |
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51 | volatile int needs_relink; |
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52 | |||
53 | spinlock_t timeoutlock; |
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54 | link_t timeout_active_head; |
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55 | |||
56 | #ifdef __SMP__ |
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57 | int kcpulbstarted; |
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58 | waitq_t kcpulb_wq; |
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59 | #endif /* __SMP__ */ |
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60 | |||
61 | int id; |
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62 | |||
63 | __u16 frequency_mhz; |
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64 | __u32 delay_loop_const; |
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65 | |||
66 | cpu_arch_t arch; |
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67 | |||
68 | __u8 *stack; |
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69 | }; |
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70 | |||
16 | jermar | 71 | /* |
72 | * read/write by associated CPU |
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73 | * read only by other CPUs |
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74 | */ |
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75 | struct cpu_private_data { |
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1 | jermar | 76 | cpu_t *cpu; |
77 | thread_t *thread; |
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78 | task_t *task; |
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79 | }; |
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80 | |||
16 | jermar | 81 | extern cpu_private_data_t *cpu_private_data; |
1 | jermar | 82 | extern cpu_t *cpus; |
83 | |||
84 | extern void cpu_init(void); |
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85 | extern void cpu_arch_init(void); |
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86 | extern void cpu_identify(void); |
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87 | extern void cpu_print_report(cpu_t *m); |
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88 | |||
89 | #endif |