include/pcnt.h

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