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34 #ifndef EAL_HUGEPAGES_H
35 #define EAL_HUGEPAGES_H
41 #define MAX_HUGEPAGE_PATH PATH_MAX
44 * Structure used to store informations about hugepages that we mapped
45 * through the files in hugetlbfs.
47 struct hugepage_file {
48 void *orig_va; /**< virtual addr of first mmap() */
49 void *final_va; /**< virtual addr of 2nd mmap() */
50 uint64_t physaddr; /**< physical addr */
51 size_t size; /**< the page size */
52 int socket_id; /**< NUMA socket ID */
53 int file_id; /**< the '%d' in HUGEFILE_FMT */
54 int memseg_id; /**< the memory segment to which page belongs */
55 #ifdef RTE_EAL_SINGLE_FILE_SEGMENTS
56 int repeated; /**< number of times the page size is repeated */
58 char filepath[MAX_HUGEPAGE_PATH]; /**< path to backing file on filesystem */
62 * Read the information from linux on what hugepages are available
65 int eal_hugepage_info_init(void);
67 #endif /* EAL_HUGEPAGES_H */