/*-
* BSD LICENSE
- *
+ *
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
- *
+ *
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
#include <stdint.h>
#include <stddef.h>
+#include <stdio.h>
#ifdef RTE_EXEC_ENV_LINUXAPP
#include <exec-env/rte_dom0_common.h>
#endif
enum rte_page_sizes {
- RTE_PGSIZE_4K = 1 << 12,
- RTE_PGSIZE_2M = RTE_PGSIZE_4K << 9,
- RTE_PGSIZE_1G = RTE_PGSIZE_2M <<9
+ RTE_PGSIZE_4K = 1ULL << 12,
+ RTE_PGSIZE_2M = 1ULL << 21,
+ RTE_PGSIZE_1G = 1ULL << 30,
+ RTE_PGSIZE_64K = 1ULL << 16,
+ RTE_PGSIZE_16M = 1ULL << 24,
+ RTE_PGSIZE_16G = 1ULL << 34
};
#define SOCKET_ID_ANY -1 /**< Any NUMA socket. */
-#ifndef CACHE_LINE_SIZE
-#define CACHE_LINE_SIZE 64 /**< Cache line size. */
+#ifndef RTE_CACHE_LINE_SIZE
+#define RTE_CACHE_LINE_SIZE 64 /**< Cache line size. */
#endif
-#define CACHE_LINE_MASK (CACHE_LINE_SIZE-1) /**< Cache line mask. */
+#define RTE_CACHE_LINE_MASK (RTE_CACHE_LINE_SIZE-1) /**< Cache line mask. */
-#define CACHE_LINE_ROUNDUP(size) \
- (CACHE_LINE_SIZE * ((size + CACHE_LINE_SIZE - 1) / CACHE_LINE_SIZE))
+#define RTE_CACHE_LINE_ROUNDUP(size) \
+ (RTE_CACHE_LINE_SIZE * ((size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE))
/**< Return the first cache-aligned value greater or equal to size. */
/**
* Force alignment to cache line.
*/
-#define __rte_cache_aligned __attribute__((__aligned__(CACHE_LINE_SIZE)))
+#define __rte_cache_aligned __attribute__((__aligned__(RTE_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.
phys_addr_t ioremap_addr; /**< Real physical address inside the VM */
#endif
size_t len; /**< Length of the segment. */
- size_t hugepage_sz; /**< The pagesize of underlying memory */
+ uint64_t hugepage_sz; /**< The pagesize of underlying memory */
int32_t socket_id; /**< NUMA socket ID. */
uint32_t nchannel; /**< Number of channels. */
uint32_t nrank; /**< Number of ranks. */
#ifdef RTE_LIBRTE_XEN_DOM0
/**< store segment MFNs */
- uint64_t mfn[DOM0_NUM_MEMBLOCK];
+ uint64_t mfn[DOM0_NUM_MEMBLOCK];
#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.
/**
* 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.
/**
* Return the physical address of elt, which is an element of the pool mp.
*
- * @param memseg_id
+ * @param memseg_id
* The mempool is from which memory segment.
* @param phy_addr
* physical address of elt.
phys_addr_t rte_mem_phy2mch(uint32_t memseg_id, const phys_addr_t phy_addr);
/**
- * Memory init for supporting application running on Xen domain0.
- *
- * @param void
- *
- * @return
+ * Memory init for supporting application running on Xen domain0.
+ *
+ * @param void
+ *
+ * @return
* 0: successfully
* negative: error
- */
+ */
int rte_xen_dom0_memory_init(void);
/**
- * Attach to memory setments of primary process on Xen domain0.
- *
- * @param void
- *
- * @return
+ * Attach to memory setments of primary process on Xen domain0.
+ *
+ * @param void
+ *
+ * @return
* 0: successfully
* negative: error
*/