Import libdrm 2.4.64

1 files changed, 135 insertions, 0 deletions

diff --git a/lib/libdrm/tests/drmtest.c b/lib/libdrm/tests/drmtest.c
new file mode 100644
index 000000000..022994a0d
--- /dev/null
+++ b/lib/libdrm/tests/drmtest.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright © 2007 Intel 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 (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include <string.h>
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include "drmtest.h"
+
+#define LIBUDEV_I_KNOW_THE_API_IS_SUBJECT_TO_CHANGE
+#include <libudev.h>
+
+static int is_master(int fd)
+{
+	drm_client_t client;
+	int ret;
+
+	/* Check that we're the only opener and authed. */
+	client.idx = 0;
+	ret = ioctl(fd, DRM_IOCTL_GET_CLIENT, &client);
+	assert (ret == 0);
+	if (!client.auth)
+		return 0;
+	client.idx = 1;
+	ret = ioctl(fd, DRM_IOCTL_GET_CLIENT, &client);
+	if (ret != -1 || errno != EINVAL)
+		return 0;
+
+	return 1;
+}
+
+/** Open the first DRM device matching the criteria */
+int drm_open_matching(const char *pci_glob, int flags)
+{
+	struct udev *udev;
+	struct udev_enumerate *e;
+	struct udev_device *device, *parent;
+        struct udev_list_entry *entry;
+	const char *pci_id, *path;
+	const char *usub, *dnode;
+	int fd;
+
+	udev = udev_new();
+	if (udev == NULL) {
+		fprintf(stderr, "failed to initialize udev context\n");
+		abort();
+	}
+
+	fd = -1;
+	e = udev_enumerate_new(udev);
+	udev_enumerate_add_match_subsystem(e, "drm");
+        udev_enumerate_scan_devices(e);
+        udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
+		path = udev_list_entry_get_name(entry);
+		device = udev_device_new_from_syspath(udev, path);
+		parent = udev_device_get_parent(device);
+		usub = udev_device_get_subsystem(parent);
+		/* Filter out KMS output devices. */
+		if (!usub || (strcmp(usub, "pci") != 0))
+			continue;
+		pci_id = udev_device_get_property_value(parent, "PCI_ID");
+		if (fnmatch(pci_glob, pci_id, 0) != 0)
+			continue;
+		dnode = udev_device_get_devnode(device);
+		if (strstr(dnode, "control"))
+			continue;
+		fd = open(dnode, O_RDWR);
+		if (fd < 0)
+			continue;
+		if ((flags & DRM_TEST_MASTER) && !is_master(fd)) {
+			close(fd);
+			fd = -1;
+			continue;
+		}
+
+		break;
+	}
+        udev_enumerate_unref(e);
+	udev_unref(udev);
+
+	return fd;
+}
+
+int drm_open_any(void)
+{
+	int fd = drm_open_matching("*:*", 0);
+
+	if (fd < 0) {
+		fprintf(stderr, "failed to open any drm device\n");
+		exit(0);
+	}
+
+	return fd;
+}
+
+/**
+ * Open the first DRM device we can find where we end up being the master.
+ */
+int drm_open_any_master(void)
+{
+	int fd = drm_open_matching("*:*", DRM_TEST_MASTER);
+
+	if (fd < 0) {
+		fprintf(stderr, "failed to open any drm device\n");
+		exit(0);
+	}
+
+	return fd;
+
+}