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                                         struct drm_create_screen_arg *arg)
  39 {
  40         struct radeon *rw = radeon_new(drmfd, 0);
  41
  42         if (rw == NULL)
  43                 return NULL;
  44         return radeon_create_screen(rw);
  45 }
  46
  47 boolean r600_buffer_get_handle(struct radeon *rw,
  48                                struct pipe_resource *buf,
  49                                struct winsys_handle *whandle)
  50 {
  51         struct drm_gem_flink flink;
  52         struct r600_buffer* rbuffer;
  53         int r;
  54
  55         rbuffer = (struct r600_buffer*)buf;
  56         if (!rbuffer->flink) {
  57                 flink.handle = rbuffer->bo->handle;
  58                 r = ioctl(rw->fd, DRM_IOCTL_GEM_FLINK, &flink);
  59                 if (r) {
  60                         return FALSE;
  61                 }
  62                 rbuffer->flink = flink.name;
  63         }
  64         whandle->handle = rbuffer->flink;
  65         return TRUE;
  66 }
  67
  68 static void r600_drm_api_destroy(struct drm_api *api)
  69 {
  70         return;
  71 }
  72
  73 struct drm_api drm_api_hooks = {
  74         .name = "r600",
  75         .driver_name = "r600",
  76         .create_screen = r600_drm_create_screen,
  77         .destroy = r600_drm_api_destroy,
  78 };
  79
  80 struct drm_api* drm_api_create()
  81 {
  82 #ifdef DEBUG
  83         return trace_drm_create(&drm_api_hooks);
  84 #else
  85         return &drm_api_hooks;
  86 #endif
  87 }