1#include <stdio.h>
2#include <sys/ioctl.h>
3
4#include "drm-uapi/i915_drm.h"
5
6#include "frontend/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
18static void
19i915_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
31static int
32i915_drm_aperture_size(struct i915_winsys *iws)
33{
34   struct i915_drm_winsys *idws = i915_drm_winsys(iws);
35   size_t aper_size, mappable_size;
36
37   drm_intel_get_aperture_sizes(idws->fd, &mappable_size, &aper_size);
38
39   return aper_size >> 20;
40}
41
42static void
43i915_drm_winsys_destroy(struct i915_winsys *iws)
44{
45   struct i915_drm_winsys *idws = i915_drm_winsys(iws);
46
47   drm_intel_bufmgr_destroy(idws->gem_manager);
48
49   FREE(idws);
50}
51
52struct i915_winsys *
53i915_drm_winsys_create(int drmFD)
54{
55   struct i915_drm_winsys *idws;
56   unsigned int deviceID;
57
58   idws = CALLOC_STRUCT(i915_drm_winsys);
59   if (!idws)
60      return NULL;
61
62   i915_drm_get_device_id(drmFD, &deviceID);
63
64   i915_drm_winsys_init_batchbuffer_functions(idws);
65   i915_drm_winsys_init_buffer_functions(idws);
66   i915_drm_winsys_init_fence_functions(idws);
67
68   idws->fd = drmFD;
69   idws->base.pci_id = deviceID;
70   idws->max_batch_size = 1 * 4096;
71
72   idws->base.aperture_size = i915_drm_aperture_size;
73   idws->base.destroy = i915_drm_winsys_destroy;
74
75   idws->gem_manager = drm_intel_bufmgr_gem_init(idws->fd, idws->max_batch_size);
76   drm_intel_bufmgr_gem_enable_reuse(idws->gem_manager);
77   drm_intel_bufmgr_gem_enable_fenced_relocs(idws->gem_manager);
78
79   idws->dump_cmd = debug_get_bool_option("I915_DUMP_CMD", false);
80   idws->dump_raw_file = debug_get_option("I915_DUMP_RAW_FILE", NULL);
81   idws->send_cmd = !debug_get_bool_option("I915_NO_HW", false);
82
83   return &idws->base;
84}
85