[picodrive.git] / platform / linux / pprof.h

#ifndef __PPROF_H__
#define __PPROF_H__

enum pprof_points {
  pp_main,
  pp_frame,
  pp_draw,
  pp_sound,
  pp_m68k,
  pp_s68k,
  pp_mem68,
  pp_z80,
  pp_msh2,
  pp_ssh2,
  pp_memsh,
  pp_dummy,
  pp_total_points
};

extern struct pp_counters *pp_counters;
extern int *refcounts;

#ifdef __i386__
typedef unsigned long long pp_type;

static __attribute__((always_inline)) inline unsigned int pprof_get_one(void)
{
  unsigned long long ret;
  __asm__ __volatile__ ("rdtsc" : "=A" (ret));
  return (unsigned int)ret;
}
#define unglitch_timer(x)

#elif defined(__GP2X__)
typedef unsigned long pp_type;

#if 0
// XXX: MMSP2 only, timer sometimes seems to return lower vals?
extern volatile unsigned long *gp2x_memregl;
#define pprof_get_one() (unsigned int)gp2x_memregl[0x0a00 >> 2]
#define unglitch_timer(di) \
  if ((signed int)(di) < 0) di = 0
#else
extern unsigned int (*gp2x_get_ticks_us)(void);
#define pprof_get_one() gp2x_get_ticks_us()
#define unglitch_timer(di) \
  if ((signed int)(di) < 0) di = 0
#endif

#else
#error no timer
#endif

struct pp_counters
{
	pp_type counter[pp_total_points];
};

#define pprof_start(point) { \
    unsigned int pp_start_##point = pprof_get_one(); refcounts[pp_##point]++

#define pprof_end(point) \
    { \
      unsigned int di = pprof_get_one() - pp_start_##point; \
      unglitch_timer(di); \
      if (!--refcounts[pp_##point]) pp_counters->counter[pp_##point] += di; \
    } \
  }

// subtract for recursive stuff
#define pprof_end_sub(point) \
    { \
      unsigned int di = pprof_get_one() - pp_start_##point; \
      unglitch_timer(di); \
      if (--refcounts[pp_##point]) pp_counters->counter[pp_##point] -= di; \
    } \
  }

extern void pprof_init(void);
extern void pprof_finish(void);

#endif // __PPROF_H__
Commit	Line	Data
	1	#ifndef __PPROF_H__
	2	#define __PPROF_H__
	3
	4	enum pprof_points {
	5	pp_main,
	6	pp_frame,
	7	pp_draw,
	8	pp_sound,
	9	pp_m68k,
	10	pp_s68k,
	11	pp_mem68,
	12	pp_z80,
	13	pp_msh2,
	14	pp_ssh2,
	15	pp_memsh,
	16	pp_dummy,
	17	pp_total_points
	18	};
	19
	20	extern struct pp_counters *pp_counters;
	21	extern int *refcounts;
	22
	23	#ifdef __i386__
	24	typedef unsigned long long pp_type;
	25
	26	static __attribute__((always_inline)) inline unsigned int pprof_get_one(void)
	27	{
	28	unsigned long long ret;
	29	__asm__ __volatile__ ("rdtsc" : "=A" (ret));
	30	return (unsigned int)ret;
	31	}
	32	#define unglitch_timer(x)
	33
	34	#elif defined(__GP2X__)
	35	typedef unsigned long pp_type;
	36
	37	#if 0
	38	// XXX: MMSP2 only, timer sometimes seems to return lower vals?
	39	extern volatile unsigned long *gp2x_memregl;
	40	#define pprof_get_one() (unsigned int)gp2x_memregl[0x0a00 >> 2]
	41	#define unglitch_timer(di) \
	42	if ((signed int)(di) < 0) di = 0
	43	#else
	44	extern unsigned int (*gp2x_get_ticks_us)(void);
	45	#define pprof_get_one() gp2x_get_ticks_us()
	46	#define unglitch_timer(di) \
	47	if ((signed int)(di) < 0) di = 0
	48	#endif
	49
	50	#else
	51	#error no timer
	52	#endif
	53
	54	struct pp_counters
	55	{
	56	pp_type counter[pp_total_points];
	57	};
	58
	59	#define pprof_start(point) { \
	60	unsigned int pp_start_##point = pprof_get_one(); refcounts[pp_##point]++
	61
	62	#define pprof_end(point) \
	63	{ \
	64	unsigned int di = pprof_get_one() - pp_start_##point; \
	65	unglitch_timer(di); \
	66	if (!--refcounts[pp_##point]) pp_counters->counter[pp_##point] += di; \
	67	} \
	68	}
	69
	70	// subtract for recursive stuff
	71	#define pprof_end_sub(point) \
	72	{ \
	73	unsigned int di = pprof_get_one() - pp_start_##point; \
	74	unglitch_timer(di); \
	75	if (--refcounts[pp_##point]) pp_counters->counter[pp_##point] -= di; \
	76	} \
	77	}
	78
	79	extern void pprof_init(void);
	80	extern void pprof_finish(void);
	81
	82	#endif // __PPROF_H__