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/*
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/*
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 * Copyright (c) 2001-2004 Jakub Jermar
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 * Copyright (C) 2001-2004 Jakub Jermar
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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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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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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#include <mm/tlb.h>
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#include <mm/tlb.h>
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#include <synch/spinlock.h>
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#include <synch/spinlock.h>
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#include <proc/scheduler.h>
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#include <proc/scheduler.h>
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#include <arch/cpu.h>
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#include <arch/cpu.h>
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#include <arch/context.h>
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#include <arch/context.h>
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#ifdef CONFIG_TIMEOUT_EXTAVL_TREE
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#include <adt/extavl.h>
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#endif
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#define CPU_STACK_SIZE  STACK_SIZE
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#define CPU_STACK_SIZE  STACK_SIZE
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/** CPU structure.
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/** CPU structure.
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 *
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 *
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 * There is one structure like this for every processor.
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 * There is one structure like this for every processor.
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 */
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 */
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typedef struct {
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typedef struct cpu {
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    SPINLOCK_DECLARE(lock);
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    SPINLOCK_DECLARE(lock);
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    tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];
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    tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];
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    count_t tlb_messages_count;
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    count_t tlb_messages_count;
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    atomic_t nrdy;
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    atomic_t nrdy;
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    runq_t rq[RQ_COUNT];
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    runq_t rq[RQ_COUNT];
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    volatile count_t needs_relink;
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    volatile count_t needs_relink;
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    SPINLOCK_DECLARE(timeoutlock);
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    SPINLOCK_DECLARE(timeoutlock);
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#ifdef CONFIG_TIMEOUT_EXTAVL_TREE
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    /** Extended AVL tree structure. */
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    extavltree_t timeout_active_tree;
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#else
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    /** Head of list of timeouts. */
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    link_t timeout_active_head;
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    link_t timeout_active_head;
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#endif
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    count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here
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    count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here
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                         so that clock() can react. This variable is
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                         so that clock() can react. This variable is
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                         CPU-local and can be only accessed when interrupts
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                         CPU-local and can be only accessed when interrupts
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                         are disabled. */
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                         are disabled. */