[src/trunk]: src/sys/external/bsd/drm2/include/linux Implement <linux/async.h...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fa8e708d55a8
branches:  trunk
changeset: 835211:fa8e708d55a8
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Mon Aug 27 07:55:49 2018 +0000

description:
Implement <linux/async.h> synchronously.

diffstat:

 sys/external/bsd/drm2/include/linux/async.h |  58 ++++++++++++++++++++++++++--
 1 files changed, 53 insertions(+), 5 deletions(-)

diffs (73 lines):

diff -r 59ea4018b77c -r fa8e708d55a8 sys/external/bsd/drm2/include/linux/async.h
--- a/sys/external/bsd/drm2/include/linux/async.h       Mon Aug 27 07:55:39 2018 +0000
+++ b/sys/external/bsd/drm2/include/linux/async.h       Mon Aug 27 07:55:49 2018 +0000
@@ -1,16 +1,64 @@
+/*     $NetBSD: async.h,v 1.4 2018/08/27 07:55:49 riastradh Exp $      */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Taylor R. Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
 #ifndef _LINUX_ASYNC_H_
 #define _LINUX_ASYNC_H_
 
-#include <sys/param.h> /* panic */
+typedef unsigned long async_cookie_t;
 
-typedef struct async_cookie_t {
+/*
+ * async_schedule(fn, arg)
+ *
+ *     Schedule the kernel to run fn(arg, cookie) at some point to
+ *     avoid slowing down boot, or call it synchronously if memory is
+ *     short.  Returns a cookie that can be used to wait for the
+ *     function to have been called.
+ */
+static inline async_cookie_t
+async_schedule(void (*fn)(void *, async_cookie_t), void *arg)
+{
 
-} async_cookie_t;
+       (*fn)(arg, 1);
+       return 1;
+}
 
+/*
+ * async_synchronize_full()
+ *
+ *     Wait for all outstanding asynchronous actions to have completed
+ *     before returning.
+ */
 static inline void
-async_schedule(void (*func)(void *, async_cookie_t), void *cookie)
+async_synchronize_full(void)
 {
-       panic("XXX defer function");
 }
 
 #endif /* _LINUX_ASYNC_H_ */