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Diffstat (limited to 'src/vppinfra/mem_mheap.c')
| -rw-r--r-- | src/vppinfra/mem_mheap.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/vppinfra/mem_mheap.c b/src/vppinfra/mem_mheap.c new file mode 100644 index 00000000000..9b2af520ca6 --- /dev/null +++ b/src/vppinfra/mem_mheap.c @@ -0,0 +1,165 @@ +/* + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* + Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + +#include <vppinfra/format.h> +#include <vppinfra/mheap.h> +#include <vppinfra/os.h> + +/* Valgrind stuff. */ +#include <vppinfra/memcheck.h> +#include <vppinfra/valgrind.h> + +void *clib_per_cpu_mheaps[CLIB_MAX_MHEAPS]; + +void +clib_mem_exit (void) +{ + u8 *heap = clib_mem_get_per_cpu_heap (); + if (heap) + mheap_free (heap); + clib_mem_set_per_cpu_heap (0); +} + +/* Initialize CLIB heap based on memory/size given by user. + Set memory to 0 and CLIB will try to allocate its own heap. */ +void * +clib_mem_init (void *memory, uword memory_size) +{ + u8 *heap; + + if (memory || memory_size) + heap = mheap_alloc (memory, memory_size); + else + { + /* Allocate lots of address space since this will limit + the amount of memory the program can allocate. + In the kernel we're more conservative since some architectures + (e.g. mips) have pretty small kernel virtual address spaces. */ +#ifdef __KERNEL__ +#define MAX_VM_MEG 64 +#else +#define MAX_VM_MEG 1024 +#endif + + uword alloc_size = MAX_VM_MEG << 20; + uword tries = 16; + + while (1) + { + heap = mheap_alloc (0, alloc_size); + if (heap) + break; + alloc_size = (alloc_size * 3) / 4; + tries--; + if (tries == 0) + break; + } + } + + clib_mem_set_heap (heap); + + return heap; +} + +#ifdef CLIB_LINUX_KERNEL +#include <asm/page.h> + +uword +clib_mem_get_page_size (void) +{ + return PAGE_SIZE; +} +#endif + +#ifdef CLIB_UNIX +uword +clib_mem_get_page_size (void) +{ + return getpagesize (); +} +#endif + +/* Make a guess for standalone. */ +#ifdef CLIB_STANDALONE +uword +clib_mem_get_page_size (void) +{ + return 4096; +} +#endif + +u8 * +format_clib_mem_usage (u8 * s, va_list * va) +{ + int verbose = va_arg (*va, int); + return format (s, "%U", format_mheap, clib_mem_get_heap (), verbose); +} + +void +clib_mem_usage (clib_mem_usage_t * u) +{ + mheap_usage (clib_mem_get_heap (), u); +} + +/* Call serial number for debugger breakpoints. */ +uword clib_mem_validate_serial = 0; + +void +clib_mem_validate (void) +{ + if (MHEAP_HAVE_SMALL_OBJECT_CACHE) + clib_warning ("clib_mem_validate disabled (small object cache is ON)"); + else + { + mheap_validate (clib_mem_get_heap ()); + clib_mem_validate_serial++; + } +} + +void +clib_mem_trace (int enable) +{ + mheap_trace (clib_mem_get_heap (), enable); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |