| 1 | /*
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| 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 |
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| 29 | #ifndef __CPU_H__
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| 30 | #define __CPU_H__
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| 31 |
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| 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 |
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| 43 | #define CPU_STACK_SIZE (4096)
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| 44 |
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| 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 |
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| 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 |
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| 53 | spinlock_t timeoutlock;
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| 54 | link_t timeout_active_head;
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| 55 |
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| 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 |
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| 61 | int id;
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| 62 | int active;
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| 63 | int tlb_active;
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| 64 |
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| 65 | __u16 frequency_mhz;
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| 66 | __u32 delay_loop_const;
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| 67 |
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| 68 | cpu_arch_t arch;
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| 69 |
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| 70 | thread_t *fpu_owner;
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| 71 |
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| 72 | __u8 *stack;
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| 73 | };
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| 74 |
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| 75 | /*
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| 76 | * read/write by associated CPU
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| 77 | * read only by other CPUs
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| 78 | */
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| 79 | struct cpu_private_data {
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| 80 | thread_t *thread;
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| 81 | task_t *task;
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| 82 | };
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| 83 |
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| 84 | extern cpu_private_data_t *cpu_private_data;
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| 85 | extern cpu_t *cpus;
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| 86 |
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| 87 | extern void cpu_init(void);
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| 88 | extern void cpu_arch_init(void);
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| 89 | extern void cpu_identify(void);
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| 90 | extern void cpu_print_report(cpu_t *m);
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| 91 |
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| 92 | #endif
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