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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) 2007 Mellanox Technologies. All rights reserved.
* Copyright (c) 2009 IBM Corporation. All rights reserved.
* Copyright (c) 2013-2025 NVIDIA Corporation. All rights reserved.
* Copyright (c) 2013-2018 Cisco Systems, Inc. All rights reserved
* Copyright (c) 2015-2018 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "rcache_base_vma_tree.h"
#include "opal/mca/rcache/base/base.h"
#include "opal/util/output.h"
int mca_rcache_base_vma_tree_init(mca_rcache_base_vma_module_t *vma_module)
{
OBJ_CONSTRUCT(&vma_module->tree, opal_interval_tree_t);
return opal_interval_tree_init(&vma_module->tree);
}
void mca_rcache_base_vma_tree_finalize(mca_rcache_base_vma_module_t *vma_module)
{
OBJ_DESTRUCT(&vma_module->tree);
}
mca_rcache_base_registration_t *
mca_rcache_base_vma_tree_find(mca_rcache_base_vma_module_t *vma_module, unsigned char *base,
unsigned char *bound)
{
return (mca_rcache_base_registration_t *)
opal_interval_tree_find_overlapping(&vma_module->tree, (uintptr_t) base,
((uintptr_t) bound) + 1);
}
struct mca_rcache_base_vma_tree_find_all_helper_args_t {
mca_rcache_base_registration_t **regs;
int reg_cnt;
int reg_max;
};
typedef struct mca_rcache_base_vma_tree_find_all_helper_args_t
mca_rcache_base_vma_tree_find_all_helper_args_t;
static int mca_rcache_base_vma_tree_find_all_helper(uint64_t low, uint64_t high, void *data,
void *ctx)
{
mca_rcache_base_vma_tree_find_all_helper_args_t *args
= (mca_rcache_base_vma_tree_find_all_helper_args_t *) ctx;
mca_rcache_base_registration_t *reg = (mca_rcache_base_registration_t *) data;
if (args->reg_cnt == args->reg_max) {
return args->reg_max;
}
args->regs[args->reg_cnt++] = reg;
return OPAL_SUCCESS;
}
int mca_rcache_base_vma_tree_find_all(mca_rcache_base_vma_module_t *vma_module, unsigned char *base,
unsigned char *bound, mca_rcache_base_registration_t **regs,
int reg_cnt)
{
mca_rcache_base_vma_tree_find_all_helper_args_t args = {.regs = regs,
.reg_max = reg_cnt,
.reg_cnt = 0};
(void) opal_interval_tree_traverse(&vma_module->tree, (uint64_t)(uintptr_t) base,
((uint64_t)(uintptr_t) bound) + 1, true,
mca_rcache_base_vma_tree_find_all_helper, &args);
return args.reg_cnt;
}
struct mca_rcache_base_vma_tree_iterate_helper_args_t {
int (*callback_fn)(struct mca_rcache_base_registration_t *, void *);
void *ctx;
};
typedef struct mca_rcache_base_vma_tree_iterate_helper_args_t
mca_rcache_base_vma_tree_iterate_helper_args_t;
static int mca_rcache_base_vma_tree_iterate_helper(uint64_t low, uint64_t high, void *data,
void *ctx)
{
mca_rcache_base_vma_tree_iterate_helper_args_t *args
= (mca_rcache_base_vma_tree_iterate_helper_args_t *) ctx;
return args->callback_fn((mca_rcache_base_registration_t *) data, args->ctx);
}
int mca_rcache_base_vma_tree_iterate(
mca_rcache_base_vma_module_t *vma_module, unsigned char *base, size_t size, bool partial_ok,
int (*callback_fn)(struct mca_rcache_base_registration_t *, void *), void *ctx)
{
mca_rcache_base_vma_tree_iterate_helper_args_t args = {.callback_fn = callback_fn, .ctx = ctx};
uintptr_t bound = (uintptr_t) base + size;
return opal_interval_tree_traverse(&vma_module->tree, (uint64_t)(intptr_t) base, bound,
partial_ok, mca_rcache_base_vma_tree_iterate_helper, &args);
}
int mca_rcache_base_vma_tree_insert(mca_rcache_base_vma_module_t *vma_module,
mca_rcache_base_registration_t *reg, size_t limit)
{
return opal_interval_tree_insert(&vma_module->tree, reg, (uintptr_t) reg->base,
(uintptr_t) reg->bound + 1);
}
/**
* Function to remove previously memory from the tree without freeing it
*
* @param base pointer to the memory to free
*
* @retval OPAL_SUCCESS
* @retval OPAL_ERR_BAD_PARAM if the passed base pointer was invalid
*/
int mca_rcache_base_vma_tree_delete(mca_rcache_base_vma_module_t *vma_module,
mca_rcache_base_registration_t *reg)
{
return opal_interval_tree_delete(&vma_module->tree, (uintptr_t) reg->base,
(uintptr_t) reg->bound + 1, reg);
}
static int mca_rcache_base_tree_dump_range_helper(uint64_t low, uint64_t high, void *data,
void *ctx)
{
mca_rcache_base_registration_t *reg = (mca_rcache_base_registration_t *) data;
opal_output(0, " reg: base=%p, bound=%p, ref_count=%d, flags=0x%x", (void *) reg->base,
(void *) reg->bound, reg->ref_count, reg->flags);
return OPAL_SUCCESS;
}
/* Dump out rcache entries within a range of memory. Useful for debugging. */
void mca_rcache_base_vma_tree_dump_range(mca_rcache_base_vma_module_t *vma_module,
unsigned char *base, size_t size, char *msg)
{
uintptr_t bound = (uintptr_t) base + size;
opal_output(0, "Dumping rcache entries: %s", msg ? msg : "");
if (opal_interval_tree_size(&vma_module->tree)) {
(void) opal_interval_tree_traverse(&vma_module->tree, (uintptr_t) base, bound, false,
mca_rcache_base_tree_dump_range_helper, NULL);
} else {
opal_output(0, " rcache is empty");
}
}
size_t mca_rcache_base_vma_tree_size(mca_rcache_base_vma_module_t *vma_module)
{
return opal_interval_tree_size(&vma_module->tree);
}
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