include/pcnt.h

   1 #ifndef __PCNT_H__
   2 #define __PCNT_H__
   3
   4 enum pcounters {
   5         PCNT_ALL,
   6         PCNT_GPU,
   7         PCNT_SPU,
   8         PCNT_BLIT,
   9         PCNT_GTE,
  10         PCNT_TEST,
  11         PCNT_CNT
  12 };
  13
  14 #ifdef PCNT
  15
  16 #if defined(__ARM_ARCH_7A__) || defined(ARM1176)
  17 #define PCNT_DIV 1000
  18 #else
  19 #include <sys/time.h>
  20 #define PCNT_DIV 1
  21 #endif
  22
  23 static const char *pcnt_names[PCNT_CNT] = { "", "gpu", "spu", "blit", "gte", "test" };
  24
  25 #define PCNT_FRAMES 10
  26
  27 extern unsigned int pcounters[PCNT_CNT];
  28 extern unsigned int pcounter_starts[PCNT_CNT];
  29
  30 #define pcnt_start(id) \
  31         pcounter_starts[id] = pcnt_get()
  32
  33 #define pcnt_end(id) \
  34         pcounters[id] += pcnt_get() - pcounter_starts[id]
  35
  36 void pcnt_hook_plugins(void);
  37
  38 static inline void pcnt_print(float fps)
  39 {
  40         static int print_counter;
  41         unsigned int total, rem;
  42         int i;
  43
  44         for (i = 0; i < PCNT_CNT; i++)
  45                 pcounters[i] /= PCNT_DIV * PCNT_FRAMES;
  46
  47         rem = total = pcounters[PCNT_ALL];
  48         for (i = 1; i < PCNT_CNT; i++)
  49                 rem -= pcounters[i];
  50         if (!total)
  51                 total++;
  52
  53         if (--print_counter < 0) {
  54                 printf("     ");
  55                 for (i = 1; i < PCNT_CNT; i++)
  56                         printf("%5s ", pcnt_names[i]);
  57                 printf("%5s\n", "rem");
  58                 print_counter = 30;
  59         }
  60
  61         printf("%4.1f ", fps);
  62 #if 0
  63         static float pcounters_all[PCNT_CNT+1];
  64         static int pcounter_samples;
  65         pcounter_samples++;
  66
  67         for (i = 1; i < PCNT_CNT; i++) {
  68                 pcounters_all[i] += pcounters[i];
  69                 printf("%5.0f ", pcounters_all[i] / pcounter_samples);
  70         }
  71         pcounters_all[i] += rem;
  72         printf("%5.0f\n", pcounters_all[i] / pcounter_samples);
  73 #else
  74         for (i = 1; i < PCNT_CNT; i++)
  75                 printf("%5u ", pcounters[i]);
  76         printf("%5u (", rem);
  77         for (i = 1; i < PCNT_CNT; i++)
  78                 printf("%2u ", pcounters[i] * 100 / total);
  79         printf("%2u) %u\n", rem * 100 / total, total);
  80 #endif
  81         memset(pcounters, 0, sizeof(pcounters));
  82 }
  83
  84 static inline unsigned int pcnt_get(void)
  85 {
  86         unsigned int val;
  87 #ifdef __ARM_ARCH_7A__
  88         __asm__ volatile("mrc p15, 0, %0, c9, c13, 0"
  89                          : "=r"(val));
  90 #elif defined(ARM1176)
  91         __asm__ volatile("mrc p15, 0, %0, c15, c12, 1"
  92                          : "=r"(val));
  93 #else
  94         // all slow on ARM :(
  95         //struct timespec tv;
  96         //clock_gettime(CLOCK_MONOTONIC_RAW, &tv);
  97         //val = tv.tv_sec * 1000000000 + tv.tv_nsec;
  98         struct timeval tv;
  99         gettimeofday(&tv, NULL);
 100         val = tv.tv_sec * 1000000 + tv.tv_usec;
 101 #endif
 102         return val;
 103 }
 104
 105 static inline void pcnt_init(void)
 106 {
 107 #ifdef __ARM_ARCH_7A__
 108         int v;
 109         asm volatile("mrc p15, 0, %0, c9, c12, 0" : "=r"(v));
 110         v |= 5; // master enable, ccnt reset
 111         v &= ~8; // ccnt divider 0
 112         asm volatile("mcr p15, 0, %0, c9, c12, 0" :: "r"(v));
 113         // enable cycle counter
 114         asm volatile("mcr p15, 0, %0, c9, c12, 1" :: "r"(1<<31));
 115 #elif defined(ARM1176)
 116         int v;
 117         asm volatile("mrc p15, 0, %0, c15, c12, 0" : "=r"(v));
 118         v |= 5; // master enable, ccnt reset
 119         v &= ~8; // ccnt divider 0
 120         asm volatile("mcr p15, 0, %0, c15, c12, 0" :: "r"(v));
 121 #endif
 122 }
 123
 124 void pcnt_gte_start(int op);
 125 void pcnt_gte_end(int op);
 126
 127 #else
 128
 129 #define pcnt_start(id)
 130 #define pcnt_end(id)
 131 #define pcnt_hook_plugins()
 132 #define pcnt_print(fps)
 133
 134 #endif
 135
 136 #endif /* __PCNT_H__ */