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/* Copyright (c) 2013 Mellanox Technologies, Inc.
* All rights reserved.
* Copyright (c) 2019 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "oshmem_config.h"
#include "oshmem/proc/proc.h"
#include "oshmem/mca/spml/spml.h"
#include "oshmem/mca/memheap/memheap.h"
#include "oshmem/mca/memheap/ptmalloc/memheap_ptmalloc.h"
#include "oshmem/mca/memheap/ptmalloc/memheap_ptmalloc_component.h"
#include "oshmem/mca/memheap/base/base.h"
#include "opal/class/opal_hash_table.h"
#include "opal/class/opal_object.h"
mca_memheap_ptmalloc_module_t memheap_ptmalloc = {
{
&mca_memheap_ptmalloc_component,
mca_memheap_ptmalloc_finalize,
mca_memheap_ptmalloc_alloc,
mca_memheap_ptmalloc_align,
mca_memheap_ptmalloc_realloc,
mca_memheap_ptmalloc_free,
mca_memheap_ptmalloc_alloc,
mca_memheap_ptmalloc_free,
mca_memheap_base_get_mkey,
mca_memheap_base_is_symmetric_addr,
mca_memheap_modex_recv_all,
0
},
100 /* priority */
};
/* Memory Heap Buddy Implementation */
/**
* Initialize the Memory Heap
*/
int mca_memheap_ptmalloc_module_init(memheap_context_t *context)
{
if (!context || !context->user_size || !context->private_size) {
return OSHMEM_ERR_BAD_PARAM;
}
/* Construct a mutex object */
OBJ_CONSTRUCT(&memheap_ptmalloc.lock, opal_mutex_t);
memheap_ptmalloc.base = context->user_base_addr;
memheap_ptmalloc.cur_size = 0;
memheap_ptmalloc.max_size = context->user_size + context->private_size;
memheap_ptmalloc.max_alloc_size = context->user_size;
MEMHEAP_VERBOSE(1,
"symmetric heap memory (user+private): %llu bytes",
(unsigned long long)(context->user_size + context->private_size));
/* disable till we figure out double modex&grpcomm.bad problem */
// memheap_modex_mkey_exchange();
return OSHMEM_SUCCESS;
}
/**
* Allocate size bytes on the symmetric heap.
* The allocated variable is aligned to its size.
*/
int mca_memheap_ptmalloc_alloc(size_t size, void** p_buff)
{
if (size > memheap_ptmalloc.max_alloc_size) {
*p_buff = 0;
return OSHMEM_ERR_OUT_OF_RESOURCE;
}
OPAL_THREAD_LOCK(&memheap_ptmalloc.lock);
*p_buff = dlmalloc(size);
OPAL_THREAD_UNLOCK(&memheap_ptmalloc.lock);
if (NULL == *p_buff)
return OSHMEM_ERROR;
MCA_SPML_CALL(memuse_hook(*p_buff, size));
return OSHMEM_SUCCESS;
}
int mca_memheap_ptmalloc_align(size_t align, size_t size, void **p_buff)
{
if (size > memheap_ptmalloc.max_alloc_size) {
*p_buff = 0;
return OSHMEM_ERR_OUT_OF_RESOURCE;
}
if (align == 0) {
*p_buff = 0;
return OSHMEM_ERROR;
}
/* check that align is power of 2 */
if (align & (align - 1)) {
*p_buff = 0;
return OSHMEM_ERROR;
}
OPAL_THREAD_LOCK(&memheap_ptmalloc.lock);
*p_buff = dlmemalign(align, size);
OPAL_THREAD_UNLOCK(&memheap_ptmalloc.lock);
if (NULL == *p_buff)
return OSHMEM_ERROR;
MCA_SPML_CALL(memuse_hook(*p_buff, size));
return OSHMEM_SUCCESS;
}
int mca_memheap_ptmalloc_realloc(size_t new_size,
void *p_buff,
void **p_new_buff)
{
if (new_size > memheap_ptmalloc.max_alloc_size) {
*p_new_buff = 0;
return OSHMEM_ERR_OUT_OF_RESOURCE;
}
OPAL_THREAD_LOCK(&memheap_ptmalloc.lock);
*p_new_buff = dlrealloc(p_buff, new_size);
OPAL_THREAD_UNLOCK(&memheap_ptmalloc.lock);
if (!*p_new_buff)
return OSHMEM_ERR_OUT_OF_RESOURCE;
MCA_SPML_CALL(memuse_hook(*p_new_buff, new_size));
return OSHMEM_SUCCESS;
}
/*
* Free a variable allocated on the
* symmetric heap.
*/
int mca_memheap_ptmalloc_free(void* ptr)
{
OPAL_THREAD_LOCK(&memheap_ptmalloc.lock);
dlfree(ptr);
OPAL_THREAD_UNLOCK(&memheap_ptmalloc.lock);
return OSHMEM_SUCCESS;
}
int mca_memheap_ptmalloc_finalize()
{
MEMHEAP_VERBOSE(5, "deregistering symmetric heap");
return OSHMEM_SUCCESS;
}
int mca_memheap_ptmalloc_getpagesize(void)
{
return 2 * 1024 * 1024;
}
/* must be same as in malloc.c */
#define PTMALLOC_MAX_SIZE_T (~(size_t)0)
#define PTMALLOC_MFAIL ((void*)(PTMALLOC_MAX_SIZE_T))
void *mca_memheap_ptmalloc_sbrk(size_t size)
{
char *ret;
if (memheap_ptmalloc.cur_size + size > memheap_ptmalloc.max_size) {
return PTMALLOC_MFAIL ;
}
ret = (char *) memheap_ptmalloc.base + memheap_ptmalloc.cur_size;
memheap_ptmalloc.cur_size += size;
return ret;
}
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