diff options
Diffstat (limited to 'src/vppinfra/linux/mem.c')
-rw-r--r-- | src/vppinfra/linux/mem.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/vppinfra/linux/mem.c b/src/vppinfra/linux/mem.c index 2fbda966bc0..6a551ec0554 100644 --- a/src/vppinfra/linux/mem.c +++ b/src/vppinfra/linux/mem.c @@ -46,6 +46,41 @@ #define F_SEAL_WRITE 0x0008 /* prevent writes */ #endif + +uword +clib_mem_get_page_size (void) +{ + return getpagesize (); +} + +uword +clib_mem_get_default_hugepage_size (void) +{ + unformat_input_t input; + static u32 size = 0; + int fd; + + if (size) + goto done; + + if ((fd = open ("/proc/meminfo", 0)) == -1) + return 0; + + unformat_init_clib_file (&input, fd); + + while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (&input, "Hugepagesize:%_%u kB", &size)) + ; + else + unformat_skip_line (&input); + } + unformat_free (&input); + close (fd); +done: + return 1024ULL * size; +} + u64 clib_mem_vm_get_page_size (int fd) { |