sync code with last improvements from OpenBSD

lib/libdrm/tests/tegra/openclose.c

@@ -0,0 +1,67 @@
+/*
+ * Copyright © 2014 NVIDIA Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "xf86drm.h"
+#include "tegra.h"
+
+static const char default_device[] = "/dev/dri/card0";
+
+int main(int argc, char *argv[])
+{
+    struct drm_tegra *tegra;
+    drmVersionPtr version;
+    const char *device;
+    int err, fd;
+
+    if (argc < 2)
+        device = default_device;
+    else
+        device = argv[1];
+
+    fd = open(device, O_RDWR);
+    if (fd < 0)
+        return 1;
+
+    version = drmGetVersion(fd);
+    if (version) {
+        printf("Version: %d.%d.%d\n", version->version_major,
+               version->version_minor, version->version_patchlevel);
+        printf("  Name: %s\n", version->name);
+        printf("  Date: %s\n", version->date);
+        printf("  Description: %s\n", version->desc);
+
+        drmFreeVersion(version);
+    }
+
+    err = drm_tegra_new(fd, &tegra);
+    if (err < 0)
+        return 1;
+
+    drm_tegra_close(tegra);
+    close(fd);
+
+    return 0;
+}