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Vector Packet Processing
vm_linux_kernel.h
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1 /*
2  * Copyright (c) 2015 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 /*
16  Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
17 
18  Permission is hereby granted, free of charge, to any person obtaining
19  a copy of this software and associated documentation files (the
20  "Software"), to deal in the Software without restriction, including
21  without limitation the rights to use, copy, modify, merge, publish,
22  distribute, sublicense, and/or sell copies of the Software, and to
23  permit persons to whom the Software is furnished to do so, subject to
24  the following conditions:
25 
26  The above copyright notice and this permission notice shall be
27  included in all copies or substantial portions of the Software.
28 
29  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
30  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
31  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
32  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
33  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
34  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
35  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 */
37 
38 #ifndef included_vm_linux_kernel_h
39 #define included_vm_linux_kernel_h
40 
41 #include <linux/vmalloc.h>
42 #include <linux/gfp.h> /* for GFP_* */
43 #include <asm/pgtable.h> /* for PAGE_KERNEL */
44 
45 /* Allocate virtual address space. */
46 always_inline void *
48 {
49  return vmalloc (size);
50 }
51 
52 always_inline void
54 {
55  vfree (addr);
56 }
57 
58 always_inline void *
60 {
61  return 0;
62 }
63 
64 always_inline void *
66 {
67  return addr;
68 }
69 
70 #endif /* included_vm_linux_kernel_h */
71 
72 /*
73  * fd.io coding-style-patch-verification: ON
74  *
75  * Local Variables:
76  * eval: (c-set-style "gnu")
77  * End:
78  */
static void clib_mem_vm_free(void *addr, uword size)
#define always_inline
Definition: clib.h:84
static void * clib_mem_vm_unmap(void *addr, uword size)
u32 size
Definition: vhost-user.h:77
static void * clib_mem_vm_alloc(uword size)
u64 uword
Definition: types.h:112
static void * clib_mem_vm_map(void *addr, uword size)
vhost_vring_addr_t addr
Definition: vhost-user.h:82