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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 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) 2009 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2009 IBM Corporation. All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include MCA_memory_IMPLEMENTATION_HEADER
#include "opal/mca/memory/memory.h"
#include "ompi/mca/rcache/rcache.h"
#include "rcache_vma.h"
#include "rcache_vma_tree.h"
#include "ompi/mca/mpool/base/base.h"
/**
* Initialize the rcache
*/
void mca_rcache_vma_module_init( mca_rcache_vma_module_t* rcache ) {
rcache->base.rcache_find = mca_rcache_vma_find;
rcache->base.rcache_find_all = mca_rcache_vma_find_all;
rcache->base.rcache_insert = mca_rcache_vma_insert;
rcache->base.rcache_delete = mca_rcache_vma_delete;
rcache->base.rcache_clean = mca_rcache_vma_clean;
rcache->base.rcache_finalize = mca_rcache_vma_finalize;
OBJ_CONSTRUCT(&rcache->base.lock, opal_mutex_t);
mca_rcache_vma_tree_init(rcache);
}
int mca_rcache_vma_find(struct mca_rcache_base_module_t* rcache,
void* addr, size_t size, mca_mpool_base_registration_t **reg)
{
int rc;
void* base_addr;
void* bound_addr;
if(size == 0) {
return OMPI_ERROR;
}
base_addr = down_align_addr(addr, mca_mpool_base_page_size_log);
bound_addr = up_align_addr((void*) ((unsigned long) addr + size - 1), mca_mpool_base_page_size_log);
/* Check to ensure that the cache is valid */
if (OPAL_UNLIKELY(opal_memory_changed() &&
NULL != opal_memory->memoryc_process &&
OPAL_SUCCESS != (rc = opal_memory->memoryc_process()))) {
return rc;
}
*reg = mca_rcache_vma_tree_find((mca_rcache_vma_module_t*)rcache, (unsigned char*)base_addr,
(unsigned char*)bound_addr);
return OMPI_SUCCESS;
}
int mca_rcache_vma_find_all(struct mca_rcache_base_module_t* rcache,
void* addr, size_t size, mca_mpool_base_registration_t **regs,
int reg_cnt)
{
int rc;
void *base_addr, *bound_addr;
if(size == 0) {
return OMPI_ERROR;
}
base_addr = down_align_addr(addr, mca_mpool_base_page_size_log);
bound_addr = up_align_addr((void*) ((unsigned long) addr + size - 1), mca_mpool_base_page_size_log);
/* Check to ensure that the cache is valid */
if (OPAL_UNLIKELY(opal_memory_changed() &&
NULL != opal_memory->memoryc_process &&
OPAL_SUCCESS != (rc = opal_memory->memoryc_process()))) {
return rc;
}
return mca_rcache_vma_tree_find_all((mca_rcache_vma_module_t*)rcache,
(unsigned char*)base_addr, (unsigned char*)bound_addr, regs,
reg_cnt);
}
int mca_rcache_vma_insert(struct mca_rcache_base_module_t* rcache,
mca_mpool_base_registration_t* reg, size_t limit)
{
int rc;
size_t reg_size = reg->bound - reg->base + 1;
mca_rcache_vma_module_t *vma_rcache = (mca_rcache_vma_module_t*)rcache;
if(limit != 0 && reg_size > limit) {
/* return out of resources if request is bigger than cache size
* return temp out of resources otherwise */
return OMPI_ERR_OUT_OF_RESOURCE;
}
/* Check to ensure that the cache is valid */
if (OPAL_UNLIKELY(opal_memory_changed() &&
NULL != opal_memory->memoryc_process &&
OPAL_SUCCESS != (rc = opal_memory->memoryc_process()))) {
return rc;
}
rc = mca_rcache_vma_tree_insert(vma_rcache, reg, limit);
if (OPAL_LIKELY(OMPI_SUCCESS == rc)) {
/* If we successfully registered, then tell the memory manager
to start monitoring this region */
opal_memory->memoryc_register(reg->base,
(uint64_t) reg_size, (uint64_t) (uintptr_t) reg);
}
return rc;
}
int mca_rcache_vma_delete(struct mca_rcache_base_module_t* rcache,
mca_mpool_base_registration_t* reg)
{
mca_rcache_vma_module_t *vma_rcache = (mca_rcache_vma_module_t*)rcache;
/* Tell the memory manager that we no longer care about this
region */
opal_memory->memoryc_deregister(reg->base,
(uint64_t) (reg->bound - reg->base),
(uint64_t) (uintptr_t) reg);
return mca_rcache_vma_tree_delete(vma_rcache, reg);
}
int mca_rcache_vma_clean(struct mca_rcache_base_module_t* rcache)
{
mca_rcache_vma_module_t *vma_rcache = (mca_rcache_vma_module_t*)rcache;
mca_rcache_vma_t *vma;
opal_list_item_t *i;
do {
OPAL_THREAD_LOCK(&rcache->lock);
i = opal_list_get_first(&vma_rcache->vma_delete_list);
if(opal_list_get_end(&vma_rcache->vma_delete_list) == i) {
vma = NULL;
OPAL_THREAD_UNLOCK(&rcache->lock);
} else {
vma = (mca_rcache_vma_t *)i;
opal_list_remove_item(&vma_rcache->vma_delete_list, &vma->super);
/* Need to drop the rcache lock before destroying the vma */
OPAL_THREAD_UNLOCK(&rcache->lock);
mca_rcache_vma_destroy(vma);
}
} while (NULL != vma);
return OMPI_SUCCESS;
}
/**
* finalize
*/
void mca_rcache_vma_finalize(struct mca_rcache_base_module_t* rcache)
{
}
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