src/gallium/winsys/i915/drm/i915_drm_winsys.c

   1 #include <stdio.h>
   2 #include <sys/ioctl.h>
   3
   4 #include "i915_drm.h"
   5
   6 #include "state_tracker/drm_driver.h"
   7
   8 #include "i915_drm_winsys.h"
   9 #include "i915_drm_public.h"
  10 #include "util/u_memory.h"
  11
  12
  13 /*
  14  * Helper functions
  15  */
  16
  17
  18 static void
  19 i915_drm_get_device_id(int fd, unsigned int *device_id)
  20 {
  21    int ret;
  22    struct drm_i915_getparam gp;
  23
  24    gp.param = I915_PARAM_CHIPSET_ID;
  25    gp.value = (int *)device_id;
  26
  27    ret = ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp, sizeof(gp));
  28    assert(ret == 0);
  29 }
  30
  31 static void
  32 i915_drm_winsys_destroy(struct i915_winsys *iws)
  33 {
  34    struct i915_drm_winsys *idws = i915_drm_winsys(iws);
  35
  36    drm_intel_bufmgr_destroy(idws->gem_manager);
  37
  38    FREE(idws);
  39 }
  40
  41 struct i915_winsys *
  42 i915_drm_winsys_create(int drmFD)
  43 {
  44    struct i915_drm_winsys *idws;
  45    unsigned int deviceID;
  46
  47    idws = CALLOC_STRUCT(i915_drm_winsys);
  48    if (!idws)
  49       return NULL;
  50
  51    i915_drm_get_device_id(drmFD, &deviceID);
  52
  53    i915_drm_winsys_init_batchbuffer_functions(idws);
  54    i915_drm_winsys_init_buffer_functions(idws);
  55    i915_drm_winsys_init_fence_functions(idws);
  56
  57    idws->fd = drmFD;
  58    idws->base.pci_id = deviceID;
  59    idws->max_batch_size = 16 * 4096;
  60
  61    idws->base.destroy = i915_drm_winsys_destroy;
  62
  63    idws->gem_manager = drm_intel_bufmgr_gem_init(idws->fd, idws->max_batch_size);
  64    drm_intel_bufmgr_gem_enable_reuse(idws->gem_manager);
  65    drm_intel_bufmgr_gem_enable_fenced_relocs(idws->gem_manager);
  66
  67    idws->dump_cmd = debug_get_bool_option("I915_DUMP_CMD", FALSE);
  68    idws->dump_raw_file = debug_get_option("I915_DUMP_RAW_FILE", NULL);
  69    idws->send_cmd = !debug_get_bool_option("I915_NO_HW", FALSE);
  70
  71    return &idws->base;
  72 }