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#ifndef DEMO_H
#define DEMO_H
#define NUM_CPUS 4
struct lock
{
volatile unsigned val;
};
struct cpu
{
unsigned num;
};
/* R12 está reservado por la ABI
* https://gcc.gnu.org/onlinedocs/gcc/Global-Register-Variables.html
*/
register struct cpu *this_cpu asm("ip");
void spin_init(struct lock *lock);
void spin_lock(struct lock *lock, unsigned *irq_save);
void spin_unlock(struct lock *lock, unsigned irq_save);
void console_init(void);
void print(const char *fmt, ...);
int cpus_ready(void);
void run_cpu(unsigned num);
void run_cpus(unsigned mask);
void halt_cpu(unsigned num);
void halt_cpus(unsigned mask);
#endif
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