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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) 2004-2007 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 IBM Corporation. All rights reserved.
* Copyright (c) 2015-2018 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2025 NVIDIA Corporation. All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
* Registration cache VMA lookup
*/
#ifndef MCA_RCACHE_BASE_VMA_H
#define MCA_RCACHE_BASE_VMA_H
#include "opal_config.h"
#include "opal/class/opal_interval_tree.h"
#include "opal/class/opal_lifo.h"
#include "opal/class/opal_list.h"
BEGIN_C_DECLS
struct mca_rcache_base_registration_t;
struct mca_rcache_base_vma_module_t {
opal_object_t super;
opal_interval_tree_t tree;
opal_mutex_t vma_lock;
};
typedef struct mca_rcache_base_vma_module_t mca_rcache_base_vma_module_t;
OBJ_CLASS_DECLARATION(mca_rcache_base_vma_module_t);
mca_rcache_base_vma_module_t *mca_rcache_base_vma_module_alloc(void);
int mca_rcache_base_vma_find(mca_rcache_base_vma_module_t *vma_module, void *addr, size_t size,
struct mca_rcache_base_registration_t **reg);
int mca_rcache_base_vma_find_all(mca_rcache_base_vma_module_t *vma_module, void *addr, size_t size,
struct mca_rcache_base_registration_t **regs, int reg_cnt);
int mca_rcache_base_vma_insert(mca_rcache_base_vma_module_t *vma_module,
struct mca_rcache_base_registration_t *registration, size_t limit);
int mca_rcache_base_vma_delete(mca_rcache_base_vma_module_t *vma_module,
struct mca_rcache_base_registration_t *registration);
void mca_rcache_base_vma_dump_range(mca_rcache_base_vma_module_t *vma_module, unsigned char *base,
size_t size, char *msg);
/**
* Iterate over registrations in the specified range.
*
* @param[in] vma_module vma tree
* @param[in] base base address of region
* @param[in] size size of region
* @param[in] partial_ok partial overlap of range is ok
* @param[in] callback_fn function to call for each matching registration handle
* @param[in] ctx callback context
*
* The callback will be made with the vma lock held. This is a recursive lock so
* it is still safe to call any vma functions on this vma_module. Keep in mind it
* is only safe to call mca_rcache_base_vma_delete() on the supplied registration
* from the callback. The iteration will terminate if the callback returns anything
* other than OPAL_SUCCESS.
*/
int mca_rcache_base_vma_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);
size_t mca_rcache_base_vma_size(mca_rcache_base_vma_module_t *vma_module);
END_C_DECLS
#endif /* MCA_RCACHE_BASE_VMA_H */
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