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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2013 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006 Voltaire. All rights reserved.
* Copyright (c) 2011-2015 Los Alamos National Security, LLC. All rights
* reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*/
#ifndef MCA_MPOOL_HUGEPAGE_H
#define MCA_MPOOL_HUGEPAGE_H
#include "opal_config.h"
#include "opal/class/opal_list.h"
#include "opal/class/opal_free_list.h"
#include "opal/mca/event/event.h"
#include "opal/mca/mpool/mpool.h"
#include "opal/util/proc.h"
#include "opal/mca/allocator/allocator.h"
#include "opal/util/sys_limits.h"
BEGIN_C_DECLS
struct mca_mpool_hugepage_module_t;
typedef struct mca_mpool_hugepage_module_t mca_mpool_hugepage_module_t;
struct mca_mpool_hugepage_component_t {
mca_mpool_base_component_t super;
bool print_stats;
opal_list_t huge_pages;
mca_mpool_hugepage_module_t *modules;
int module_count;
unsigned long bytes_allocated;
};
typedef struct mca_mpool_hugepage_component_t mca_mpool_hugepage_component_t;
OPAL_DECLSPEC extern mca_mpool_hugepage_component_t mca_mpool_hugepage_component;
struct mca_mpool_hugepage_module_t;
struct mca_mpool_hugepage_hugepage_t {
/** opal list item superclass */
opal_list_item_t super;
/** page size in bytes */
unsigned long page_size;
/** path for mmapped files */
char *path;
/** counter to help ensure unique file names for mmaped files */
volatile int32_t count;
/** some platforms allow allocation of hugepages through mmap flags */
int mmap_flags;
};
typedef struct mca_mpool_hugepage_hugepage_t mca_mpool_hugepage_hugepage_t;
OBJ_CLASS_DECLARATION(mca_mpool_hugepage_hugepage_t);
struct mca_mpool_hugepage_module_t {
mca_mpool_base_module_t super;
mca_mpool_hugepage_hugepage_t *huge_page;
mca_allocator_base_module_t *allocator;
opal_mutex_t lock;
opal_rb_tree_t allocation_tree;
};
/*
* Initializes the mpool module.
*/
int mca_mpool_hugepage_module_init (mca_mpool_hugepage_module_t *mpool,
mca_mpool_hugepage_hugepage_t *huge_page);
void *mca_mpool_hugepage_seg_alloc (void *ctx, size_t *sizep);
void mca_mpool_hugepage_seg_free (void *ctx, void *addr);
END_C_DECLS
#endif
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