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  1. /*
  2.  * Copyright (C) 2001-2004 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #ifndef __CPU_H__
  30. #define __CPU_H__
  31.  
  32. #include <arch/cpu.h>
  33. #include <proc/scheduler.h>
  34. #include <synch/spinlock.h>
  35. #include <synch/waitq.h>
  36. #include <arch/types.h>
  37. #include <typedefs.h>
  38. #include <arch/context.h>
  39. #include <config.h>
  40. #include <list.h>
  41.  
  42. #define CPU_STACK_SIZE  STACK_SIZE
  43.  
  44. struct cpu {
  45.     SPINLOCK_DECLARE(lock);
  46.     context_t saved_context;
  47.  
  48.     volatile count_t nrdy;
  49.     runq_t rq[RQ_COUNT];
  50.     volatile count_t needs_relink;
  51.  
  52.     SPINLOCK_DECLARE(timeoutlock);
  53.     link_t timeout_active_head;
  54.  
  55.     #ifdef CONFIG_SMP
  56.     atomic_t kcpulbstarted;
  57.     waitq_t kcpulb_wq;
  58.     #endif /* CONFIG_SMP */
  59.  
  60.     int id;
  61.     int active;
  62.     int tlb_active;
  63.  
  64.     __u16 frequency_mhz;
  65.     __u32 delay_loop_const;
  66.  
  67.     cpu_arch_t arch;
  68.  
  69.     thread_t *fpu_owner;
  70.    
  71.     __u8 *stack;
  72. };
  73.  
  74. extern cpu_t *cpus;
  75.  
  76. extern void cpu_init(void);
  77. extern void cpu_list(void);
  78.  
  79. extern void cpu_arch_init(void);
  80. extern void cpu_identify(void);
  81. extern void cpu_print_report(cpu_t *m);
  82.  
  83. #endif
  84.