frontend/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 static const char *pcnt_names[PCNT_CNT] = { "", "gpu", "spu", "blit", "gte", "test" };
  15
  16 #define PCNT_FRAMES 10
  17
  18 extern unsigned int pcounters[PCNT_CNT];
  19 extern unsigned int pcounter_starts[PCNT_CNT];
  20
  21 #define pcnt_start(id) \
  22         pcounter_starts[id] = pcnt_get()
  23
  24 #define pcnt_end(id) \
  25         pcounters[id] += pcnt_get() - pcounter_starts[id]
  26
  27 void pcnt_hook_plugins(void);
  28
  29 static inline void pcnt_print(float fps)
  30 {
  31         static int print_counter;
  32         unsigned int total, rem;
  33         int i;
  34
  35         for (i = 0; i < PCNT_CNT; i++)
  36                 pcounters[i] /= 1000 * PCNT_FRAMES;
  37
  38         rem = total = pcounters[PCNT_ALL];
  39         for (i = 1; i < PCNT_CNT; i++)
  40                 rem -= pcounters[i];
  41         if (!total)
  42                 total++;
  43
  44         if (--print_counter < 0) {
  45                 printf("     ");
  46                 for (i = 1; i < PCNT_CNT; i++)
  47                         printf("%5s ", pcnt_names[i]);
  48                 printf("%5s\n", "rem");
  49                 print_counter = 30;
  50         }
  51
  52         printf("%4.1f ", fps);
  53 #if 0
  54         static float pcounters_all[PCNT_CNT+1];
  55         static int pcounter_samples;
  56         pcounter_samples++;
  57
  58         for (i = 1; i < PCNT_CNT; i++) {
  59                 pcounters_all[i] += pcounters[i];
  60                 printf("%5.0f ", pcounters_all[i] / pcounter_samples);
  61         }
  62         pcounters_all[i] += rem;
  63         printf("%5.0f\n", pcounters_all[i] / pcounter_samples);
  64 #else
  65         for (i = 1; i < PCNT_CNT; i++)
  66                 printf("%5u ", pcounters[i]);
  67         printf("%5u (", rem);
  68         for (i = 1; i < PCNT_CNT; i++)
  69                 printf("%2u ", pcounters[i] * 100 / total);
  70         printf("%2u) %u\n", rem * 100 / total, total);
  71 #endif
  72         memset(pcounters, 0, sizeof(pcounters));
  73 }
  74
  75 static inline unsigned int pcnt_get(void)
  76 {
  77         unsigned int val;
  78 #ifdef __ARM_ARCH_7A__
  79         __asm__ volatile("mrc p15, 0, %0, c9, c13, 0"
  80                          : "=r"(val));
  81 #else
  82         val = 0;
  83 #endif
  84         return val;
  85 }
  86
  87 static inline void pcnt_init(void)
  88 {
  89 #ifdef __ARM_ARCH_7A__
  90         int v;
  91         asm volatile("mrc p15, 0, %0, c9, c12, 0" : "=r"(v));
  92         v |= 5; // master enable, ccnt reset
  93         v &= ~8; // ccnt divider 0
  94         asm volatile("mcr p15, 0, %0, c9, c12, 0" :: "r"(v));
  95         // enable cycle counter
  96         asm volatile("mcr p15, 0, %0, c9, c12, 1" :: "r"(1<<31));
  97 #endif
  98 }
  99
 100 void pcnt_gte_start(int op);
 101 void pcnt_gte_end(int op);
 102
 103 #else
 104
 105 #define pcnt_start(id)
 106 #define pcnt_end(id)
 107 #define pcnt_hook_plugins()
 108 #define pcnt_print(fps)
 109
 110 #endif