src/gallium/winsys/nouveau/drm/nouveau_drm_api.c

   1 #include "pipe/p_context.h"
   2 #include "pipe/p_state.h"
   3 #include "util/u_format.h"
   4 #include "util/u_memory.h"
   5 #include "util/u_inlines.h"
   6
   7 #include "nouveau_drm_api.h"
   8
   9 #include "nouveau_drmif.h"
  10 #include "nouveau_channel.h"
  11 #include "nouveau_bo.h"
  12
  13 #include "nouveau/nouveau_winsys.h"
  14 #include "nouveau/nouveau_screen.h"
  15
  16 static void
  17 nouveau_drm_destroy_winsys(struct pipe_winsys *s)
  18 {
  19         struct nouveau_winsys *nv_winsys = nouveau_winsys(s);
  20         struct nouveau_screen *nv_screen= nouveau_screen(nv_winsys->pscreen);
  21         nouveau_device_close(&nv_screen->device);
  22         FREE(nv_winsys);
  23 }
  24
  25 static struct pipe_screen *
  26 nouveau_drm_create_screen(struct drm_api *api, int fd,
  27                           struct drm_create_screen_arg *arg)
  28 {
  29         struct nouveau_winsys *nvws;
  30         struct pipe_winsys *ws;
  31         struct nouveau_device *dev = NULL;
  32         struct pipe_screen *(*init)(struct pipe_winsys *,
  33                                     struct nouveau_device *);
  34         int ret;
  35
  36         ret = nouveau_device_open_existing(&dev, 0, fd, 0);
  37         if (ret)
  38                 return NULL;
  39
  40         switch (dev->chipset & 0xf0) {
  41         case 0x30:
  42         case 0x40:
  43         case 0x60:
  44                 init = nvfx_screen_create;
  45                 break;
  46         case 0x50:
  47         case 0x80:
  48         case 0x90:
  49         case 0xa0:
  50                 init = nv50_screen_create;
  51                 break;
  52         default:
  53                 debug_printf("%s: unknown chipset nv%02x\n", __func__,
  54                              dev->chipset);
  55                 return NULL;
  56         }
  57
  58         nvws = CALLOC_STRUCT(nouveau_winsys);
  59         if (!nvws) {
  60                 nouveau_device_close(&dev);
  61                 return NULL;
  62         }
  63         ws = &nvws->base;
  64         ws->destroy = nouveau_drm_destroy_winsys;
  65
  66         nvws->pscreen = init(ws, dev);
  67         if (!nvws->pscreen) {
  68                 ws->destroy(ws);
  69                 return NULL;
  70         }
  71
  72         return nvws->pscreen;
  73 }
  74
  75 static struct drm_api nouveau_drm_api_hooks = {
  76         .name = "nouveau",
  77         .driver_name = "nouveau",
  78         .create_screen = nouveau_drm_create_screen,
  79         .destroy = NULL,
  80 };
  81
  82 struct drm_api *
  83 drm_api_create() {
  84         return &nouveau_drm_api_hooks;
  85 }
  86