src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.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_winsys.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 {
  28         struct nouveau_winsys *nvws;
  29         struct pipe_winsys *ws;
  30         struct nouveau_device *dev = NULL;
  31         struct pipe_screen *(*init)(struct pipe_winsys *,
  32                                     struct nouveau_device *);
  33         int ret;
  34
  35         ret = nouveau_device_open_existing(&dev, 0, fd, 0);
  36         if (ret)
  37                 return NULL;
  38
  39         switch (dev->chipset & 0xf0) {
  40         case 0x30:
  41         case 0x40:
  42         case 0x60:
  43                 init = nvfx_screen_create;
  44                 break;
  45         case 0x50:
  46         case 0x80:
  47         case 0x90:
  48         case 0xa0:
  49                 init = nv50_screen_create;
  50                 break;
  51         default:
  52                 debug_printf("%s: unknown chipset nv%02x\n", __func__,
  53                              dev->chipset);
  54                 return NULL;
  55         }
  56
  57         nvws = CALLOC_STRUCT(nouveau_winsys);
  58         if (!nvws) {
  59                 nouveau_device_close(&dev);
  60                 return NULL;
  61         }
  62         ws = &nvws->base;
  63         ws->destroy = nouveau_drm_destroy_winsys;
  64
  65         nvws->pscreen = init(ws, dev);
  66         if (!nvws->pscreen) {
  67                 ws->destroy(ws);
  68                 return NULL;
  69         }
  70
  71         return nvws->pscreen;
  72 }
  73
  74 static struct drm_api nouveau_drm_api_hooks = {
  75         .name = "nouveau",
  76         .driver_name = "nouveau",
  77         .create_screen = nouveau_drm_create_screen,
  78         .destroy = NULL,
  79 };
  80
  81 struct drm_api *
  82 drm_api_create() {
  83         return &nouveau_drm_api_hooks;
  84 }
  85