1/*
2 * Copyright © 2022 Imagination Technologies Ltd.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * 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 NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24#include <stdbool.h>
25#include <vulkan/vulkan.h>
26#include <xf86drm.h>
27
28#include "powervr/pvr_drm_public.h"
29#include "pvr_private.h"
30#include "pvr_winsys.h"
31#include "vk_log.h"
32
33#if defined(PVR_SUPPORT_SERVICES_DRIVER)
34#   include "pvrsrvkm/pvr_srv_public.h"
35#endif
36
37void pvr_winsys_destroy(struct pvr_winsys *ws)
38{
39   ws->ops->destroy(ws);
40}
41
42struct pvr_winsys *pvr_winsys_create(int master_fd,
43                                     int render_fd,
44                                     const VkAllocationCallbacks *alloc)
45{
46#if defined(PVR_SUPPORT_SERVICES_DRIVER)
47   drmVersionPtr version;
48   bool services_driver;
49
50   version = drmGetVersion(render_fd);
51   if (!version) {
52      vk_errorf(NULL,
53                VK_ERROR_INCOMPATIBLE_DRIVER,
54                "Failed to query kernel driver version for device.");
55      return NULL;
56   }
57
58   if (strcmp(version->name, "pvr") == 0) {
59      services_driver = true;
60   } else if (strcmp(version->name, "powervr") == 0) {
61      services_driver = false;
62   } else {
63      drmFreeVersion(version);
64      vk_errorf(
65         NULL,
66         VK_ERROR_INCOMPATIBLE_DRIVER,
67         "Device does not use any of the supported pvrsrvkm or powervr kernel driver.");
68      return NULL;
69   }
70
71   drmFreeVersion(version);
72
73   if (services_driver)
74      return pvr_srv_winsys_create(master_fd, render_fd, alloc);
75#endif
76
77   return pvr_drm_winsys_create(master_fd, render_fd, alloc);
78}
79