diff options
Diffstat (limited to 'frontend/pcnt.h')
| -rw-r--r-- | frontend/pcnt.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/frontend/pcnt.h b/frontend/pcnt.h index 0213ca1..9ddd500 100644 --- a/frontend/pcnt.h +++ b/frontend/pcnt.h @@ -11,6 +11,13 @@ enum pcounters { #ifdef PCNT +#if defined(__ARM_ARCH_7A__) || defined(ARM1176) +#define PCNT_DIV 1000 +#else +#include <sys/time.h> +#define PCNT_DIV 1 +#endif + static const char *pcnt_names[PCNT_CNT] = { "", "gpu", "spu", "blit", "gte", "test" }; #define PCNT_FRAMES 10 @@ -33,7 +40,7 @@ static inline void pcnt_print(float fps) int i; for (i = 0; i < PCNT_CNT; i++) - pcounters[i] /= 1000 * PCNT_FRAMES; + pcounters[i] /= PCNT_DIV * PCNT_FRAMES; rem = total = pcounters[PCNT_ALL]; for (i = 1; i < PCNT_CNT; i++) @@ -78,8 +85,17 @@ static inline unsigned int pcnt_get(void) #ifdef __ARM_ARCH_7A__ __asm__ volatile("mrc p15, 0, %0, c9, c13, 0" : "=r"(val)); +#elif defined(ARM1176) + __asm__ volatile("mrc p15, 0, %0, c15, c12, 1" + : "=r"(val)); #else - val = 0; + // all slow on ARM :( + //struct timespec tv; + //clock_gettime(CLOCK_MONOTONIC_RAW, &tv); + //val = tv.tv_sec * 1000000000 + tv.tv_nsec; + struct timeval tv; + gettimeofday(&tv, NULL); + val = tv.tv_sec * 1000000 + tv.tv_usec; #endif return val; } @@ -94,6 +110,12 @@ static inline void pcnt_init(void) asm volatile("mcr p15, 0, %0, c9, c12, 0" :: "r"(v)); // enable cycle counter asm volatile("mcr p15, 0, %0, c9, c12, 1" :: "r"(1<<31)); +#elif defined(ARM1176) + int v; + asm volatile("mrc p15, 0, %0, c15, c12, 0" : "=r"(v)); + v |= 5; // master enable, ccnt reset + v &= ~8; // ccnt divider 0 + asm volatile("mcr p15, 0, %0, c15, c12, 0" :: "r"(v)); #endif } |