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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
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:
26 The above copyright notice and this permission notice shall be
27 included in all copies or substantial portions of the Software.
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.
38 #include <vppinfra/format.h>
39 #include <vppinfra/mheap.h>
40 #include <vppinfra/os.h>
43 #include <vppinfra/memcheck.h>
44 #include <vppinfra/valgrind.h>
46 void * clib_per_cpu_mheaps[CLIB_MAX_MHEAPS];
48 void clib_mem_exit (void)
50 u8 * heap = clib_mem_get_per_cpu_heap ();
53 clib_mem_set_per_cpu_heap (0);
56 /* Initialize CLIB heap based on memory/size given by user.
57 Set memory to 0 and CLIB will try to allocate its own heap. */
58 void * clib_mem_init (void * memory, uword memory_size)
62 if (memory || memory_size)
63 heap = mheap_alloc (memory, memory_size);
66 /* Allocate lots of address space since this will limit
67 the amount of memory the program can allocate.
68 In the kernel we're more conservative since some architectures
69 (e.g. mips) have pretty small kernel virtual address spaces. */
73 #define MAX_VM_MEG 1024
76 uword alloc_size = MAX_VM_MEG << 20;
81 heap = mheap_alloc (0, alloc_size);
84 alloc_size = (alloc_size * 3) / 4;
91 clib_mem_set_heap (heap);
96 #ifdef CLIB_LINUX_KERNEL
99 uword clib_mem_get_page_size (void)
100 { return PAGE_SIZE; }
104 uword clib_mem_get_page_size (void)
105 { return getpagesize (); }
108 /* Make a guess for standalone. */
109 #ifdef CLIB_STANDALONE
110 uword clib_mem_get_page_size (void)
114 u8 * format_clib_mem_usage (u8 * s, va_list * va)
116 int verbose = va_arg (*va, int);
117 return format (s, "%U", format_mheap, clib_mem_get_heap (), verbose);
120 void clib_mem_usage (clib_mem_usage_t * u)
121 { mheap_usage (clib_mem_get_heap (), u); }
123 /* Call serial number for debugger breakpoints. */
124 uword clib_mem_validate_serial = 0;
126 void clib_mem_validate (void)
128 if (MHEAP_HAVE_SMALL_OBJECT_CACHE)
129 clib_warning ("clib_mem_validate disabled (small object cache is ON)");
132 mheap_validate (clib_mem_get_heap ());
133 clib_mem_validate_serial++;
137 void clib_mem_trace (int enable)
138 { mheap_trace (clib_mem_get_heap (), enable); }