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#include <arch/barrier.h>
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#include <arch/barrier.h>
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#include <arch.h>
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#include <arch.h>
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#include <preemption.h>
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#include <preemption.h>
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#include <print.h>
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#include <print.h>
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#include <debug.h>
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#include <debug.h>
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#include <symtab.h>
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#ifdef CONFIG_SMP
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#ifdef CONFIG_SMP
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/** Initialize spinlock
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/** Initialize spinlock
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 *
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 *
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 * Initialize spinlock.
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 * Initialize spinlock.
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 *
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 *
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 * @param sl Pointer to spinlock_t structure.
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 * @param sl Pointer to spinlock_t structure.
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 */
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 */
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void spinlock_initialize(spinlock_t *sl)
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void spinlock_initialize(spinlock_t *sl, char *name)
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{
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{
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    sl->val = 0;
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    sl->val = 0;
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#ifdef CONFIG_DEBUG_SPINLOCK
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    sl->name = name;
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#endif 
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}
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}
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#ifdef CONFIG_DEBUG_SPINLOCK
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#ifdef CONFIG_DEBUG_SPINLOCK
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/** Lock spinlock
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/** Lock spinlock
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 *
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 *
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 * @param sl Pointer to spinlock_t structure.
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 * @param sl Pointer to spinlock_t structure.
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 */
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 */
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void spinlock_lock(spinlock_t *sl)
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void spinlock_lock(spinlock_t *sl)
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{
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{
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    int i = 0;
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    int i = 0;
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    __address caller = ((__u32 *) &sl)[-1];
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    __address caller = ((__address *) &sl)[-1];
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    char *symbol;
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    preemption_disable();
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    preemption_disable();
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    while (test_and_set(&sl->val)) {
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    while (test_and_set(&sl->val)) {
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        if (i++ > 300000) {
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        if (i++ > 300000) {
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            printf("cpu%d: looping on spinlock %X, caller=%X\n", CPU->id, sl, caller);
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            printf("cpu%d: looping on spinlock %p:%s, caller=%p",
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                   CPU->id, sl, sl->name, caller);
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            symbol = get_symtab_entry(caller);
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            if (symbol)
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                printf("(%s)", symbol);
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            printf("\n");
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            i = 0;
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            i = 0;
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        }
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        }
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    }
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    }
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    /*
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    /*