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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-04-27 11:58:19 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-10-23 08:46:43 +0200 |
commit | 28ee86a9b0f2e980beeb637da4f787065c74a39e (patch) | |
tree | e2daa4e96e0488de2066fcb5f38e087c9a58f319 /rtemsbsd/powerpc/include/linux/slab.h | |
parent | powerpc: Fix warnings (diff) | |
download | rtems-libbsd-28ee86a9b0f2e980beeb637da4f787065c74a39e.tar.bz2 |
Import DPAA driver snapshot
Imported from Freescale Linux repository
git://git.freescale.com/ppc/upstream/linux.git
commit 2774c204cd8bfc56a200ff4dcdfc9cdf5b6fc161.
Linux compatibility layer is partly from FreeBSD.
Diffstat (limited to 'rtemsbsd/powerpc/include/linux/slab.h')
-rw-r--r-- | rtemsbsd/powerpc/include/linux/slab.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/rtemsbsd/powerpc/include/linux/slab.h b/rtemsbsd/powerpc/include/linux/slab.h new file mode 100644 index 00000000..8455dc3e --- /dev/null +++ b/rtemsbsd/powerpc/include/linux/slab.h @@ -0,0 +1,113 @@ +/*- + * Copyright (c) 2010 Isilon Systems, Inc. + * Copyright (c) 2010 iX Systems, Inc. + * Copyright (c) 2010 Panasas, Inc. + * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. + * All rights reserved. + * + * 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 unmodified, 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 AUTHOR ``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 AUTHOR 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. + * + * $FreeBSD$ + */ +#ifndef _LINUX_SLAB_H_ +#define _LINUX_SLAB_H_ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/malloc.h> +#include <vm/uma.h> + +#include <linux/types.h> +#include <linux/gfp.h> + +MALLOC_DECLARE(M_KMALLOC); + +#define kmalloc(size, flags) malloc((size), M_KMALLOC, (flags)) +#define kmalloc_array(size, n, flags) malloc((size) * (n), M_KMALLOC, (flags)) +#define kvmalloc(size) kmalloc((size), 0) +#define kzalloc(size, flags) kmalloc((size), (flags) | M_ZERO) +#define kzalloc_node(size, flags, node) kzalloc(size, flags) +#define kfree(ptr) free(__DECONST(void *, (ptr)), M_KMALLOC) +#define krealloc(ptr, size, flags) realloc((ptr), (size), M_KMALLOC, (flags)) +#define kcalloc(n, size, flags) kmalloc((n) * (size), flags | M_ZERO) +#define vzalloc(size) kzalloc(size, GFP_KERNEL | __GFP_NOWARN) +#define vfree(arg) kfree(arg) +#define kvfree(arg) kfree(arg) +#define vmalloc(size) kmalloc(size, GFP_KERNEL) +#define vmalloc_node(size, node) kmalloc(size, GFP_KERNEL) + +struct kmem_cache { + uma_zone_t cache_zone; + void (*cache_ctor)(void *); +}; + +#define SLAB_HWCACHE_ALIGN 0x0001 + +static inline int +kmem_ctor(void *mem, int size, void *arg, int flags) +{ + void (*ctor)(void *); + + ctor = arg; + ctor(mem); + + return (0); +} + +static inline struct kmem_cache * +kmem_cache_create(char *name, size_t size, size_t align, u_long flags, + void (*ctor)(void *)) +{ + struct kmem_cache *c; + + c = malloc(sizeof(*c), M_KMALLOC, M_WAITOK); + if (align) + align--; + if (flags & SLAB_HWCACHE_ALIGN) + align = UMA_ALIGN_CACHE; + c->cache_zone = uma_zcreate(name, size, ctor ? kmem_ctor : NULL, + NULL, NULL, NULL, align, 0); + c->cache_ctor = ctor; + + return c; +} + +static inline void * +kmem_cache_alloc(struct kmem_cache *c, int flags) +{ + return uma_zalloc_arg(c->cache_zone, c->cache_ctor, flags); +} + +static inline void +kmem_cache_free(struct kmem_cache *c, void *m) +{ + uma_zfree(c->cache_zone, m); +} + +static inline void +kmem_cache_destroy(struct kmem_cache *c) +{ + uma_zdestroy(c->cache_zone); + free(c, M_KMALLOC); +} + +#endif /* _LINUX_SLAB_H_ */ |