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39 #include <sys/queue.h>
41 #include <rte_memcpy.h>
42 #include <rte_memory.h>
43 #include <rte_memzone.h>
44 #include <rte_tailq.h>
46 #include <rte_branch_prediction.h>
47 #include <rte_debug.h>
48 #include <rte_launch.h>
49 #include <rte_per_lcore.h>
50 #include <rte_lcore.h>
51 #include <rte_common.h>
52 #include <rte_spinlock.h>
54 #include <rte_malloc.h>
55 #include "malloc_elem.h"
56 #include "malloc_heap.h"
58 static struct malloc_heap malloc_heap[RTE_MAX_NUMA_NODES] = {
59 { .initialised = NOT_INITIALISED }
62 /* Free the memory space back to heap */
63 void rte_free(void *addr)
65 if (addr == NULL) return;
66 if (malloc_elem_free(malloc_elem_from_data(addr)) < 0)
67 rte_panic("Fatal error: Invalid memory\n");
71 * Allocate memory on default heap.
74 rte_malloc(const char *type, size_t size, unsigned align)
76 unsigned malloc_socket = malloc_get_numa_socket();
77 /* return NULL if size is 0 or alignment is not power-of-2 */
78 if (size == 0 || !rte_is_power_of_2(align))
80 return malloc_heap_alloc(&malloc_heap[malloc_socket], type,
81 size, align == 0 ? 1 : align);
85 * Allocate zero'd memory on default heap.
88 rte_zmalloc(const char *type, size_t size, unsigned align)
90 void *ptr = rte_malloc(type, size, align);
98 * Allocate zero'd memory on default heap.
101 rte_calloc(const char *type, size_t num, size_t size, unsigned align)
103 return rte_zmalloc(type, num * size, align);
107 * Resize allocated memory.
110 rte_realloc(void *ptr, size_t size, unsigned align)
113 return rte_malloc(NULL, size, align);
115 struct malloc_elem *elem = malloc_elem_from_data(ptr);
117 rte_panic("Fatal error: memory corruption detected\n");
119 size = CACHE_LINE_ROUNDUP(size), align = CACHE_LINE_ROUNDUP(align);
120 /* check alignment matches first, and if ok, see if we can resize block */
121 if (RTE_PTR_ALIGN(ptr,align) == ptr &&
122 malloc_elem_resize(elem, size) == 0)
125 /* either alignment is off, or we have no room to expand,
127 void *new_ptr = rte_malloc(NULL, size, align);
130 const unsigned old_size = elem->size - MALLOC_ELEM_OVERHEAD;
131 rte_memcpy(new_ptr, ptr, old_size < size ? old_size : size);
138 rte_malloc_validate(void *ptr, size_t *size)
140 struct malloc_elem *elem = malloc_elem_from_data(ptr);
141 if (!malloc_elem_cookies_ok(elem))
144 *size = elem->size - elem->pad - MALLOC_ELEM_OVERHEAD;
148 * TODO: Print stats on memory type. If type is NULL, info on all types is printed
151 rte_malloc_dump_stats(__rte_unused const char *type)
157 * TODO: Set limit to memory that can be allocated to memory type
160 rte_malloc_set_limit(__rte_unused const char *type,
161 __rte_unused size_t max)