Attachment 76351 Details for Bug 62191 – drm buffer object bug demo program

drm buffer object bug demo program

selftest.c (text/plain), 4.57 KB, created by jon.bloomfield on 2013-03-11 20:03:21 UTC

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Creator: jon.bloomfield

Created: 2013-03-11 20:03:21 UTC

Size: 4.57 KB

patch

obsolete

>#include <unistd.h>
>#include <sys/types.h>
>#include <sys/wait.h>
>#include <string.h>
>#include <sys/types.h>
>#include <sys/stat.h>
>#include <fcntl.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <drm.h>
>#include <i915_drm.h>
>#include <intel_bufmgr.h>
>
>const int BATCH_BUFFER_SIZE = 524288; /* From media_libva.c */
>
>int drm_fd = 0;
>drm_intel_bufmgr *buf_mgr;
>
>unsigned int FourCC = 842094158;
>#define Width 720
>#define Height 576 
>
>int alignedW = (Width  + 127) & ~127;
>int iSize    = (3 * ((Height +  31) &  ~31)) / 2;
>
>drm_intel_bo *surface_bo = NULL;
>
>
>void init()
>{
>    static int drm_fd = -1;
>
>    drm_fd = open("/dev/dri/card0", O_RDWR);
>    if (drm_fd < 0)
>    {
>        printf("error: can't open DRM connection!\n");
>        _exit(-1);
>    }
>    
>    buf_mgr = intel_bufmgr_gem_init(drm_fd, BATCH_BUFFER_SIZE);
>    if (buf_mgr == NULL)
>    {
>        printf("intel_bufmgr_gem_init Failed!\n");
>        _exit(-1);
>    }
>    intel_bufmgr_gem_enable_reuse(buf_mgr);
>}
>
>void create()
>{
>    int cpp = 1;
>    uint32_t tiling_mode = I915_TILING_Y;
>    unsigned long pitch = 0;
>    unsigned long flags = 0;
>    
>    surface_bo = 
>      drm_intel_bo_alloc_tiled(buf_mgr, "Surface", alignedW, iSize, cpp, &tiling_mode, 
>                           &pitch, flags);
>    if (surface_bo == NULL)
>    {
>        printf("intel_bo_alloc_tiled error\n");
>        _exit(-1);
>    }
>}
>
>void writeOrTestFrame(unsigned long child, unsigned int frame, int test)
>{
>    unsigned int totalBytes = alignedW * iSize;
>    unsigned int totalDWords = totalBytes >> 2;
>    unsigned long i;
>    unsigned int  v = (frame << 20) | (child << 24);
>
>    volatile unsigned int *image_data = NULL;
>    volatile unsigned int r;
>
>    drm_intel_bo_reference(surface_bo);
>    
>    drm_intel_bo_wait_rendering(surface_bo);
>    drm_intel_gem_bo_map_gtt(surface_bo);
>    image_data = (unsigned int *)surface_bo->virtual;
>   
>    for (i = 0; i < totalDWords; ++i)
>    {
>       if (test)
>       {
>         r = image_data[i];
>         if (r != v)
>         {
>           printf("Child %2lu:  Readback failed at Frame: %lu, DWord: %lu", child, (unsigned long) frame, (unsigned long)i);
>           printf(" (Expected 0x%08lx, Got: 0x%08lx)\n", (unsigned long) v, (unsigned long)r);
>           _exit (-1);
>         }
>
>         ++v;
>       }
>       else 
>       {
>         image_data[i] = v;
>
>         r = image_data[i];
>         if (r != v)
>         {
>           printf("Child %2lu:  Write failed at Frame: %lu, DWord: %lu", child, (unsigned long) frame, (unsigned long)i);
>           printf(" (Write 0x%08lx, Got: 0x%08lx)\n", (unsigned long) v, (unsigned long)r);
>           _exit (-1);
>         }
>         ++v;
>       }
>    }
>
>    drm_intel_gem_bo_unmap_gtt(surface_bo);
>    surface_bo->virtual = NULL;
>    
>    drm_intel_bo_unreference(surface_bo);
>}
>
>void test_proc(unsigned long child)
>{
>  unsigned int i;
>
>  init();
>  create();
>
>  for (i = 0; i < 10; ++i)
>  {
>    writeOrTestFrame(child, i, 0);
>    writeOrTestFrame(child, i, 1);
>  }
>  
>  _exit(0);
>}
>
>int main(int argc, char **argv)
>{
>  unsigned long num_forks = 0;
>  unsigned long i;
>  int have_procs = 0;
>  pid_t *pids = NULL;
>  int   *results = NULL;
>  int result = -1;
>
>  for (i = 1; i < argc; ++i)
>  {
>    if (strcmp(argv[i], "-procs") == 0)
>    {
>      ++i;
>      num_forks = strtoul(argv[i], 0, 10);
>      have_procs = 1;
>    }
>  }
>
>  if (have_procs == 0)
>  {
>    fprintf(stderr, "Usage: %s -procs <num-procs>\n", argv[0]);
>    exit(-1);
>  }
>
>  /* Fork the processes */
>  pids    = calloc(sizeof(pid_t), num_forks);
>  results = calloc(sizeof(results[0]), num_forks);
>  for (i = 0; i < num_forks; ++i)
>  {
>    printf("Forking child %lu...\n", i);
>    pid_t stat = fork();
>    if (stat == 0)
>    {
>      /* A Child */
>      test_proc(i);
>    }
>    else if (stat > 0)
>    {
>      /* The Parent, saved PID */
>      pids[i] = stat;
>    }
>    else
>    {
>      fprintf(stderr, "Failed to fork child %lu\n", i);
>      exit(-1);
>    }
>  }
>
>  /* Wait for the children to complete */
>  result = 0;
>  printf("Waiting for child processes...\n");
>  for (i = 0; i < num_forks; ++i)
>  {
>    if (waitpid(pids[i], results+i, 0) < 0)
>    {
>      fprintf(stderr, "Failed to waitpid on child %lu (Process %lu)\n", i, (unsigned long)pids[i]);
>      result = -1;
>    }
>  }
>
>  /* Report results */
>  if (result == 0)
>  {
>    for (i = 0; i < num_forks; ++i)
>    {
>      if (results[i]== 0)
>	printf("Child %lu (process %lu) PASSED\n", i, (unsigned long)pids[i]);
>      else
>      {
>	printf("Child %lu (process %lu) FAILED\n", i, (unsigned long)pids[i]);
>	result = -1;
>      }
>    }
>  }
>
>  if (result == 0)
>    printf("\nPASSED\n");
>  else
>    printf("\nFAILED\n");
>  return result;
>}
>

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Attachments on bug 62191: 76351 | 76867 | 76915 | 79614

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