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1 jermar 1
/*
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 * Copyright (C) 2001-2004 Jakub Jermar
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef __CPU_H__
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#define __CPU_H__
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#include <arch/cpu.h>
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#include <proc/thread.h>
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#include <proc/task.h>
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#include <proc/scheduler.h>
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#include <time/clock.h>
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#include <synch/spinlock.h>
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#include <synch/waitq.h>
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#include <arch/types.h>
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#include <typedefs.h>
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#include <arch/context.h>
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#define CPU_STACK_SIZE  (4096)
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struct cpu {
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    spinlock_t lock;
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    context_t saved_context;
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    volatile int nrdy;
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    runq_t rq[RQ_COUNT];
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    volatile int needs_relink;
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    spinlock_t timeoutlock;
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    link_t timeout_active_head;
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    #ifdef __SMP__
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    int kcpulbstarted;
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    waitq_t kcpulb_wq;
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    #endif /* __SMP__ */
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    int id;
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    int active;
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    int tlb_active;
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    __u16 frequency_mhz;
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    __u32 delay_loop_const;
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    cpu_arch_t arch;
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    thread_t *fpu_owner;
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    __u8 *stack;
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};
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/*
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 * read/write by associated CPU
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 * read only by other CPUs
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 */
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struct cpu_private_data {
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    thread_t *thread;
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    task_t *task;
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};
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extern cpu_private_data_t *cpu_private_data;
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extern cpu_t *cpus;
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extern void cpu_init(void);
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extern void cpu_arch_init(void);
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extern void cpu_identify(void);
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extern void cpu_print_report(cpu_t *m);
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#endif