add FILE argument to debug functions

[dpdk.git] / lib / librte_eal / common / include / rte_memory.h

diff --git a/lib/librte_eal/common/include/rte_memory.h b/lib/librte_eal/common/include/rte_memory.h
index 4ae3bf7..1313812 100644 (file)
--- a/lib/librte_eal/common/include/rte_memory.h
+++ b/lib/librte_eal/common/include/rte_memory.h
@@ -73,6 +73,7 @@ enum rte_page_sizes {
 #define __rte_cache_aligned __attribute__((__aligned__(CACHE_LINE_SIZE)))
 
 typedef uint64_t phys_addr_t; /**< Physical address definition. */
+#define RTE_BAD_PHYS_ADDR ((phys_addr_t)-1)
 
 /**
  * Physical memory segment descriptor.
@@ -97,6 +98,27 @@ struct rte_memseg {
 #endif
 } __attribute__((__packed__));
 
+/**
+ * Lock page in physical memory and prevent from swapping.
+ *
+ * @param virt
+ *   The virtual address.
+ * @return
+ *   0 on success, negative on error.
+ */
+int rte_mem_lock_page(const void *virt);
+
+/**
+ * Get physical address of any mapped virtual address in the current process.
+ * It is found by browsing the /proc/self/pagemap special file.
+ * The page must be locked.
+ *
+ * @param virt
+ *   The virtual address.
+ * @return
+ *   The physical address or RTE_BAD_PHYS_ADDR on error.
+ */
+phys_addr_t rte_mem_virt2phy(const void *virt);
 
 /**
  * Get the layout of the available physical memory.
@@ -117,8 +139,11 @@ const struct rte_memseg *rte_eal_get_physmem_layout(void);
 
 /**
  * Dump the physical memory layout to the console.
+ *
+ * @param f
+ *   A pointer to a file for output
  */
-void rte_dump_physmem_layout(void);
+void rte_dump_physmem_layout(FILE *f);
 
 /**
  * Get the total amount of available physical memory.