sim/testsuite/sim/bfin/mdma-skel.h

   1 #include <string.h>
   2
   3 void _mdma_memcpy (bu32 dst, bu32 src, bu32 size, bs16 mod)
   4 {
   5   bu32 count = size >> (abs (mod) / 2);
   6   bu16 wdsize;
   7   switch (abs (mod))
   8     {
   9     case 4: wdsize = WDSIZE_32; break;
  10     case 2: wdsize = WDSIZE_16; break;
  11     default: wdsize = WDSIZE_8; break;
  12     }
  13
  14   s->config = d->config = 0;
  15
  16   d->irq_status = DMA_DONE | DMA_ERR;
  17
  18   /* Destination */
  19   d->start_addr = dst;
  20   d->x_count = count;
  21   d->x_modify = mod;
  22   d->irq_status = DMA_DONE | DMA_ERR;
  23
  24   /* Source */
  25   s->start_addr = src;
  26   s->x_count = count;
  27   s->x_modify = mod;
  28   s->irq_status = DMA_DONE | DMA_ERR;
  29
  30   /* Enable */
  31   s->config = DMAEN | wdsize;
  32   d->config = WNR | DI_EN | DMAEN | wdsize;
  33
  34   while (!(d->irq_status & DMA_DONE))
  35     continue;
  36 }
  37
  38 void mdma_memcpy (bu32 dst, bu32 src, bu32 size);
  39
  40 #ifndef MAX_LEN
  41 #define MAX_LEN 0x40000
  42 #endif
  43 bu32 _data[(MAX_LEN / 4) * 2 + 3];
  44 char *data = (char *)(_data + 1);
  45
  46 int _start (void)
  47 {
  48   char *src, *dst;
  49   bu32 len, canary, *canaries[3];
  50
  51   canary = 0x12345678;
  52
  53   len = 4;
  54   while (len < MAX_LEN)
  55     {
  56       src = data;
  57       dst = data + len + 4;
  58       /* Set up the canaries.  */
  59       canaries[0] = (void *)&src[-4];
  60       canaries[1] = (void *)&dst[-4];
  61       canaries[2] = (void *)&dst[len];
  62       *canaries[0] = *canaries[1] = *canaries[2] = canary;
  63
  64       memset (src, 0xad, len);
  65       memset (dst, 0x00, len);
  66
  67       mdma_memcpy ((bu32)dst, (bu32)src, len);
  68       if (memcmp (src, dst, len))
  69         DBG_FAIL;
  70
  71       if (*canaries[0] != canary ||
  72           *canaries[1] != canary ||
  73           *canaries[2] != canary)
  74         DBG_FAIL;
  75
  76       len <<= 4;
  77     }
  78   DBG_PASS;
  79 }