xref: /dragonfly/sys/dev/drm/include/linux/slab.h (revision caaec4e3)
1 /*
2  * Copyright (c) 2015-2017 François Tigeot <ftigeot@wolfpond.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #ifndef _LINUX_SLAB_H_
28 #define _LINUX_SLAB_H_
29 
30 #include <linux/gfp.h>
31 #include <linux/types.h>
32 
33 MALLOC_DECLARE(M_DRM);
34 
35 #define kzalloc(size, flags)	kmalloc(size, M_DRM, flags | M_ZERO)
36 
37 #define kfree(ptr)	do {		\
38 	if (ptr != NULL)		\
39 		kfree(ptr, M_DRM);	\
40 } while (0)
41 
42 #define kcalloc(n, size, flags)	kzalloc((n) * (size), flags)
43 
44 static inline void *
45 kmalloc_array(size_t n, size_t size, gfp_t flags)
46 {
47 	return kmalloc(n * size, M_DRM, flags);
48 }
49 
50 #endif	/* _LINUX_SLAB_H_ */
51