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pprof: workaround for MMSP2 timer glitch, add draw2

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@852 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2010-01-02 22:25:55 +00:00
parent 997b2e4ff9
commit 8a4843859f
2 changed files with 17 additions and 4 deletions
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2
linux/Makefile
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@ -89,7 +89,7 @@ PicoDrive : $(OBJS)
$(CC) $(CFLAGS) $^ $(LDFLAGS) -Wl,-Map=PicoDrive.map -o $@
pprof: pprof.c
$(CROSS)gcc -O2 -ggdb -DPPROF -DPPROF_TOOL -I../../ -I. $^ -o $@ -lrt
$(CROSS)gcc -O2 -ggdb -DPPROF -DPPROF_TOOL -I../../ -I. $^ -o $@
%.o : %.asm
@echo ">>>" $<

19
linux/pprof.h
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@ -28,11 +28,14 @@ static __attribute__((always_inline)) inline unsigned int pprof_get_one(void)
__asm__ __volatile__ ("rdtsc" : "=A" (ret));
return (unsigned int)ret;
}
#define unglitch_timer(x)
#elif defined(__GP2X__)
// XXX: MMSP2 only
// 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
#error no timer
@ -40,12 +43,22 @@ extern volatile unsigned long *gp2x_memregl;
#define pprof_start(point) { \
unsigned int pp_start_##point = pprof_get_one()
#define pprof_end(point) \
pp_counters->counter[pp_##point] += pprof_get_one() - pp_start_##point; \
{ \
unsigned int di = pprof_get_one() - pp_start_##point; \
unglitch_timer(di); \
pp_counters->counter[pp_##point] += di; \
} \
}
// subtract for recursive stuff
#define pprof_end_sub(point) \
pp_counters->counter[pp_##point] -= pprof_get_one() - pp_start_##point; \
{ \
unsigned int di = pprof_get_one() - pp_start_##point; \
unglitch_timer(di); \
pp_counters->counter[pp_##point] -= di; \
} \
}
extern void pprof_init(void);