src/gallium/winsys/kmsro/drm/kmsro_drm_winsys.c

   1 /*
   2  * Copyright (C) 2016 Christian Gmeiner <christian.gmeiner@gmail.com>
   3  * Copyright (C) 2017 Broadcom
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  */
  24
  25 #include <fcntl.h>
  26 #include <unistd.h>
  27
  28 #include "kmsro_drm_public.h"
  29 #include "vc4/drm/vc4_drm_public.h"
  30 #include "etnaviv/drm/etnaviv_drm_public.h"
  31 #include "freedreno/drm/freedreno_drm_public.h"
  32 #include "panfrost/drm/panfrost_drm_public.h"
  33 #include "lima/drm/lima_drm_public.h"
  34 #include "xf86drm.h"
  35
  36 #include "pipe/p_screen.h"
  37 #include "renderonly/renderonly.h"
  38
  39 struct pipe_screen *kmsro_drm_screen_create(int fd)
  40 {
  41    struct pipe_screen *screen = NULL;
  42    struct renderonly ro = {
  43       .kms_fd = fd,
  44       .gpu_fd = -1,
  45    };
  46
  47 #if defined(GALLIUM_VC4)
  48    ro.gpu_fd = drmOpenWithType("vc4", NULL, DRM_NODE_RENDER);
  49    if (ro.gpu_fd >= 0) {
  50       /* Passes the vc4-allocated BO through to the KMS-only DRM device using
  51        * PRIME buffer sharing.  The VC4 BO must be linear, which the SCANOUT
  52        * flag on allocation will have ensured.
  53        */
  54       ro.create_for_resource = renderonly_create_gpu_import_for_resource,
  55       screen = vc4_drm_screen_create_renderonly(&ro);
  56       if (!screen)
  57          close(ro.gpu_fd);
  58
  59       return screen;
  60    }
  61 #endif
  62
  63 #if defined(GALLIUM_ETNAVIV)
  64    ro.gpu_fd = drmOpenWithType("etnaviv", NULL, DRM_NODE_RENDER);
  65    if (ro.gpu_fd >= 0) {
  66       ro.create_for_resource = renderonly_create_kms_dumb_buffer_for_resource,
  67       screen = etna_drm_screen_create_renderonly(&ro);
  68       if (!screen)
  69          close(ro.gpu_fd);
  70
  71       return screen;
  72    }
  73 #endif
  74
  75 #if defined(GALLIUM_FREEDRENO)
  76    ro.gpu_fd = drmOpenWithType("msm", NULL, DRM_NODE_RENDER);
  77    if (ro.gpu_fd >= 0) {
  78       ro.create_for_resource = renderonly_create_kms_dumb_buffer_for_resource,
  79       screen = fd_drm_screen_create(ro.gpu_fd, &ro);
  80       if (!screen)
  81          close(ro.gpu_fd);
  82
  83       return screen;
  84    }
  85 #endif
  86
  87 #if defined(GALLIUM_PANFROST)
  88    ro.gpu_fd = drmOpenWithType("panfrost", NULL, DRM_NODE_RENDER);
  89
  90    if (ro.gpu_fd >= 0) {
  91       ro.create_for_resource = renderonly_create_kms_dumb_buffer_for_resource,
  92       screen = panfrost_drm_screen_create_renderonly(&ro);
  93       if (!screen)
  94          close(ro.gpu_fd);
  95
  96       return screen;
  97    }
  98 #endif
  99
 100 #if defined(GALLIUM_LIMA)
 101    ro.gpu_fd = drmOpenWithType("lima", NULL, DRM_NODE_RENDER);
 102    if (ro.gpu_fd >= 0) {
 103       ro.create_for_resource = renderonly_create_kms_dumb_buffer_for_resource,
 104       screen = lima_drm_screen_create_renderonly(&ro);
 105       if (!screen)
 106          close(ro.gpu_fd);
 107
 108       return screen;
 109    }
 110 #endif
 111
 112    return screen;
 113 }