src/gallium/winsys/r600/drm/r600_drm.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Jerome Glisse
  25  *      Corbin Simpson <MostAwesomeDude@gmail.com>
  26  *      Joakim Sindholt <opensource@zhasha.com>
  27  */
  28 #include <sys/ioctl.h>
  29 #include "trace/tr_drm.h"
  30 #include "util/u_inlines.h"
  31 #include "util/u_debug.h"
  32 #include "state_tracker/drm_api.h"
  33 #include "radeon_priv.h"
  34 #include "r600_screen.h"
  35 #include "r600_texture.h"
  36
  37 static struct pipe_screen *r600_drm_create_screen(struct drm_api* api, int drmfd)
  38 {
  39         struct radeon *rw = radeon_new(drmfd, 0);
  40
  41         if (rw == NULL)
  42                 return NULL;
  43         return radeon_create_screen(rw);
  44 }
  45
  46 boolean r600_buffer_get_handle(struct radeon *rw,
  47                                struct pipe_resource *buf,
  48                                struct winsys_handle *whandle)
  49 {
  50         struct drm_gem_flink flink;
  51         struct r600_buffer* rbuffer;
  52         int r;
  53
  54         rbuffer = (struct r600_buffer*)buf;
  55         if (!rbuffer->flink) {
  56                 flink.handle = rbuffer->bo->handle;
  57                 r = ioctl(rw->fd, DRM_IOCTL_GEM_FLINK, &flink);
  58                 if (r) {
  59                         return FALSE;
  60                 }
  61                 rbuffer->flink = flink.name;
  62         }
  63         whandle->handle = rbuffer->flink;
  64         return TRUE;
  65 }
  66
  67 static void r600_drm_api_destroy(struct drm_api *api)
  68 {
  69         return;
  70 }
  71
  72 struct drm_api drm_api_hooks = {
  73         .name = "r600",
  74         .driver_name = "r600",
  75         .create_screen = r600_drm_create_screen,
  76         .destroy = r600_drm_api_destroy,
  77 };
  78
  79 struct drm_api* drm_api_create()
  80 {
  81 #ifdef DEBUG
  82         return trace_drm_create(&drm_api_hooks);
  83 #else
  84         return &drm_api_hooks;
  85 #endif
  86 }