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39 #include <sys/queue.h>
41 #include <rte_memory.h>
42 #include <rte_memzone.h>
44 #include <rte_eal_memconfig.h>
47 #include "eal_private.h"
50 * Return a pointer to a read-only table of struct rte_physmem_desc
51 * elements, containing the layout of all addressable physical
52 * memory. The last element of the table contains a NULL address.
54 const struct rte_memseg *
55 rte_eal_get_physmem_layout(void)
57 return rte_eal_get_configuration()->mem_config->memseg;
61 /* get the total size of memory */
63 rte_eal_get_physmem_size(void)
65 const struct rte_mem_config *mcfg;
67 uint64_t total_len = 0;
69 /* get pointer to global configuration */
70 mcfg = rte_eal_get_configuration()->mem_config;
72 for (i=0; i<RTE_MAX_MEMSEG; i++) {
73 if (mcfg->memseg[i].addr == NULL)
76 total_len += mcfg->memseg[i].len;
82 /* Dump the physical memory layout on console */
84 rte_dump_physmem_layout(FILE *f)
86 const struct rte_mem_config *mcfg;
89 /* get pointer to global configuration */
90 mcfg = rte_eal_get_configuration()->mem_config;
92 for (i=0; i<RTE_MAX_MEMSEG; i++) {
93 if (mcfg->memseg[i].addr == NULL)
96 fprintf(f, "Segment %u: phys:0x%"PRIx64", len:%zu, "
97 "virt:%p, socket_id:%"PRId32", "
98 "hugepage_sz:%"PRIu64", nchannel:%"PRIx32", "
99 "nrank:%"PRIx32"\n", i,
100 mcfg->memseg[i].phys_addr,
102 mcfg->memseg[i].addr,
103 mcfg->memseg[i].socket_id,
104 mcfg->memseg[i].hugepage_sz,
105 mcfg->memseg[i].nchannel,
106 mcfg->memseg[i].nrank);
110 /* return the number of memory channels */
111 unsigned rte_memory_get_nchannel(void)
113 return rte_eal_get_configuration()->mem_config->nchannel;
116 /* return the number of memory rank */
117 unsigned rte_memory_get_nrank(void)
119 return rte_eal_get_configuration()->mem_config->nrank;