[igt-dev] [PATCH i-g-t 02/10] include/freebsd-uapi/sync_file.h: Create FreeBSD sync_file header

[Jake Freeland]

Instead of modifying the Linux uapi sync_file.h, create FreeBSD
uapi sync_file.h. The correct uapi will be determined at compile
time in the root meson.build.

Signed-off-by: Jake Freeland <jfree at freebsd.org>
---
 include/freebsd-uapi/sync_file.h | 102 +++++++++++++++++++++++++++++++
 meson.build                      |   5 ++
 2 files changed, 107 insertions(+)
 create mode 100644 include/freebsd-uapi/sync_file.h

diff --git a/include/freebsd-uapi/sync_file.h b/include/freebsd-uapi/sync_file.h
new file mode 100644
index 00000000..3b5c5544
--- /dev/null
+++ b/include/freebsd-uapi/sync_file.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
+/*
+ * Copyright (C) 2012 Google, Inc.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _FREEBSD_SYNC_H
+#define _FREEBSD_SYNC_H
+
+#include <sys/ioctl.h>
+#include <sys/types.h>
+
+typedef	int32_t		__s32;
+typedef	uint32_t	__u32;
+typedef	uint64_t	__u64;
+
+/**
+ * struct sync_merge_data - data passed to merge ioctl
+ * @name:	name of new fence
+ * @fd2:	file descriptor of second fence
+ * @fence:	returns the fd of the new fence to userspace
+ * @flags:	merge_data flags
+ * @pad:	padding for 64-bit alignment, should always be zero
+ */
+struct sync_merge_data {
+	char	name[32];
+	__s32	fd2;
+	__s32	fence;
+	__u32	flags;
+	__u32	pad;
+};
+
+/**
+ * struct sync_fence_info - detailed fence information
+ * @obj_name:		name of parent sync_timeline
+* @driver_name:	name of driver implementing the parent
+* @status:		status of the fence 0:active 1:signaled <0:error
+ * @flags:		fence_info flags
+ * @timestamp_ns:	timestamp of status change in nanoseconds
+ */
+struct sync_fence_info {
+	char	obj_name[32];
+	char	driver_name[32];
+	__s32	status;
+	__u32	flags;
+	__u64	timestamp_ns;
+};
+
+/**
+ * struct sync_file_info - data returned from fence info ioctl
+ * @name:	name of fence
+ * @status:	status of fence. 1: signaled 0:active <0:error
+ * @flags:	sync_file_info flags
+ * @num_fences	number of fences in the sync_file
+ * @pad:	padding for 64-bit alignment, should always be zero
+ * @sync_fence_info: pointer to array of structs sync_fence_info with all
+ *		 fences in the sync_file
+ */
+struct sync_file_info {
+	char	name[32];
+	__s32	status;
+	__u32	flags;
+	__u32	num_fences;
+	__u32	pad;
+
+	__u64	sync_fence_info;
+};
+
+#define SYNC_IOC_MAGIC		'>'
+
+/**
+ * Opcodes  0, 1 and 2 were burned during a API change to avoid users of the
+ * old API to get weird errors when trying to handling sync_files. The API
+ * change happened during the de-stage of the Sync Framework when there was
+ * no upstream users available.
+ */
+
+/**
+ * DOC: SYNC_IOC_MERGE - merge two fences
+ *
+ * Takes a struct sync_merge_data.  Creates a new fence containing copies of
+ * the sync_pts in both the calling fd and sync_merge_data.fd2.  Returns the
+ * new fence's fd in sync_merge_data.fence
+ */
+#define SYNC_IOC_MERGE		_IOWR(SYNC_IOC_MAGIC, 3, struct sync_merge_data)
+
+/**
+ * DOC: SYNC_IOC_FILE_INFO - get detailed information on a sync_file
+ *
+ * Takes a struct sync_file_info. If num_fences is 0, the field is updated
+ * with the actual number of fences. If num_fences is > 0, the system will
+ * use the pointer provided on sync_fence_info to return up to num_fences of
+ * struct sync_fence_info, with detailed fence information.
+ */
+#define SYNC_IOC_FILE_INFO	_IOWR(SYNC_IOC_MAGIC, 4, struct sync_file_info)
+
+#endif /* _FREEBSD_SYNC_H */
diff --git a/meson.build b/meson.build
index 3e937f5a..4ceb85dd 100644
--- a/meson.build
+++ b/meson.build
@@ -86,7 +86,12 @@ with_libdrm = get_option('libdrm_drivers')
 
 build_info = ['Build type: ' + get_option('buildtype')]
 
+system = build_machine.system()
+if system == 'linux'
 inc = include_directories('include/drm-uapi', 'include/linux-uapi', 'lib', 'lib/stubs/syscalls', '.')
+elif system == 'freebsd'
+inc = include_directories('include/drm-uapi', 'include/freebsd-uapi', 'lib', 'lib/stubs/syscalls', '.', '/usr/local/include')
+endif
 
 inc_for_gtkdoc = include_directories('lib')
 
-- 
2.37.3