[fio.git] / arch / arch-ia64.h

#ifndef ARCH_IA64_H
#define ARCH_IA64_H

#define FIO_ARCH	(arch_ia64)

#define nop		asm volatile ("hint @pause" ::: "memory");
#define read_barrier()	asm volatile ("mf" ::: "memory")
#define write_barrier()	asm volatile ("mf" ::: "memory")

#define ia64_popcnt(x)							\
({									\
	unsigned long ia64_intri_res;					\
	asm ("popcnt %0=%1" : "=r" (ia64_intri_res) : "r" (x));		\
	ia64_intri_res;							\
})

static inline unsigned long arch_ffz(unsigned long bitmask)
{
	return ia64_popcnt(bitmask & (~bitmask - 1));
}

static inline unsigned long long get_cpu_clock(void)
{
	unsigned long long ret;

	__asm__ __volatile__("mov %0=ar.itc" : "=r" (ret) : : "memory");
	return ret;
}

#define ARCH_HAVE_INIT
extern int tsc_reliable;
static inline int arch_init(char *envp[])
{
	tsc_reliable = 1;
	return 0;
}

#define ARCH_HAVE_FFZ
#define ARCH_HAVE_CPU_CLOCK

#endif
Commit	Line	Data
	1	#ifndef ARCH_IA64_H
	2	#define ARCH_IA64_H
	3
	4	#define FIO_ARCH (arch_ia64)
	5
	6	#define nop asm volatile ("hint @pause" ::: "memory");
	7	#define read_barrier() asm volatile ("mf" ::: "memory")
	8	#define write_barrier() asm volatile ("mf" ::: "memory")
	9
	10	#define ia64_popcnt(x) \
	11	({ \
	12	unsigned long ia64_intri_res; \
	13	asm ("popcnt %0=%1" : "=r" (ia64_intri_res) : "r" (x)); \
	14	ia64_intri_res; \
	15	})
	16
	17	static inline unsigned long arch_ffz(unsigned long bitmask)
	18	{
	19	return ia64_popcnt(bitmask & (~bitmask - 1));
	20	}
	21
	22	static inline unsigned long long get_cpu_clock(void)
	23	{
	24	unsigned long long ret;
	25
	26	__asm__ __volatile__("mov %0=ar.itc" : "=r" (ret) : : "memory");
	27	return ret;
	28	}
	29
	30	#define ARCH_HAVE_INIT
	31	extern int tsc_reliable;
	32	static inline int arch_init(char *envp[])
	33	{
	34	tsc_reliable = 1;
	35	return 0;
	36	}
	37
	38	#define ARCH_HAVE_FFZ
	39	#define ARCH_HAVE_CPU_CLOCK
	40
	41	#endif