helper.h
/*
* SPDX-License-Identifier: BSD-3-Clause
* Copyright © 2009 CNRS
* Copyright © 2009-2024 Inria. All rights reserved.
* Copyright © 2009-2012 Université Bordeaux
* Copyright © 2009-2010 Cisco Systems, Inc. All rights reserved.
* See COPYING in top-level directory.
*/
#ifndef HWLOC_HELPER_H
#define HWLOC_HELPER_H
#ifndef HWLOC_H
#error Please include the main hwloc.h instead
#endif
#include <stdlib.h>
#include <errno.h>
#ifdef __cplusplus
extern "C" {
#endif
HWLOC_DECLSPEC int
hwloc_obj_type_is_normal(hwloc_obj_type_t type);
HWLOC_DECLSPEC int
hwloc_obj_type_is_io(hwloc_obj_type_t type);
HWLOC_DECLSPEC int
hwloc_obj_type_is_memory(hwloc_obj_type_t type);
HWLOC_DECLSPEC int
hwloc_obj_type_is_cache(hwloc_obj_type_t type);
HWLOC_DECLSPEC int
hwloc_obj_type_is_dcache(hwloc_obj_type_t type);
HWLOC_DECLSPEC int
hwloc_obj_type_is_icache(hwloc_obj_type_t type);
static __hwloc_inline hwloc_obj_t
hwloc_get_first_largest_obj_inside_cpuset(hwloc_topology_t topology, hwloc_const_cpuset_t set)
{
hwloc_obj_t obj = hwloc_get_root_obj(topology);
if (!hwloc_bitmap_intersects(obj->cpuset, set))
return NULL;
while (!hwloc_bitmap_isincluded(obj->cpuset, set)) {
/* while the object intersects without being included, look at its children */
hwloc_obj_t child = obj->first_child;
while (child) {
if (hwloc_bitmap_intersects(child->cpuset, set))
break;
child = child->next_sibling;
}
if (!child)
/* no child intersects, return their father */
return obj;
/* found one intersecting child, look at its children */
obj = child;
}
/* obj is included, return it */
return obj;
}
HWLOC_DECLSPEC int hwloc_get_largest_objs_inside_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set,
hwloc_obj_t * __hwloc_restrict objs, int max);
static __hwloc_inline hwloc_obj_t
hwloc_get_next_obj_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set,
int depth, hwloc_obj_t prev)
{
hwloc_obj_t next = hwloc_get_next_obj_by_depth(topology, depth, prev);
if (!next)
return NULL;
while (next && (hwloc_bitmap_iszero(next->cpuset) || !hwloc_bitmap_isincluded(next->cpuset, set)))
next = next->next_cousin;
return next;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_next_obj_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set,
hwloc_obj_type_t type, hwloc_obj_t prev)
{
int depth = hwloc_get_type_depth(topology, type);
if (depth == HWLOC_TYPE_DEPTH_UNKNOWN || depth == HWLOC_TYPE_DEPTH_MULTIPLE)
return NULL;
return hwloc_get_next_obj_inside_cpuset_by_depth(topology, set, depth, prev);
}
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set,
int depth, unsigned idx) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set,
int depth, unsigned idx)
{
hwloc_obj_t obj = hwloc_get_obj_by_depth (topology, depth, 0);
unsigned count = 0;
if (!obj)
return NULL;
while (obj) {
if (!hwloc_bitmap_iszero(obj->cpuset) && hwloc_bitmap_isincluded(obj->cpuset, set)) {
if (count == idx)
return obj;
count++;
}
obj = obj->next_cousin;
}
return NULL;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set,
hwloc_obj_type_t type, unsigned idx) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set,
hwloc_obj_type_t type, unsigned idx)
{
int depth = hwloc_get_type_depth(topology, type);
if (depth == HWLOC_TYPE_DEPTH_UNKNOWN || depth == HWLOC_TYPE_DEPTH_MULTIPLE)
return NULL;
return hwloc_get_obj_inside_cpuset_by_depth(topology, set, depth, idx);
}
static __hwloc_inline unsigned
hwloc_get_nbobjs_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set,
int depth) __hwloc_attribute_pure;
static __hwloc_inline unsigned
hwloc_get_nbobjs_inside_cpuset_by_depth (hwloc_topology_t topology, hwloc_const_cpuset_t set,
int depth)
{
hwloc_obj_t obj = hwloc_get_obj_by_depth (topology, depth, 0);
unsigned count = 0;
if (!obj)
return 0;
while (obj) {
if (!hwloc_bitmap_iszero(obj->cpuset) && hwloc_bitmap_isincluded(obj->cpuset, set))
count++;
obj = obj->next_cousin;
}
return count;
}
static __hwloc_inline int
hwloc_get_nbobjs_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set,
hwloc_obj_type_t type) __hwloc_attribute_pure;
static __hwloc_inline int
hwloc_get_nbobjs_inside_cpuset_by_type (hwloc_topology_t topology, hwloc_const_cpuset_t set,
hwloc_obj_type_t type)
{
int depth = hwloc_get_type_depth(topology, type);
if (depth == HWLOC_TYPE_DEPTH_UNKNOWN)
return 0;
if (depth == HWLOC_TYPE_DEPTH_MULTIPLE)
return -1; /* FIXME: agregate nbobjs from different levels? */
return (int) hwloc_get_nbobjs_inside_cpuset_by_depth(topology, set, depth);
}
static __hwloc_inline int
hwloc_get_obj_index_inside_cpuset (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_const_cpuset_t set,
hwloc_obj_t obj) __hwloc_attribute_pure;
static __hwloc_inline int
hwloc_get_obj_index_inside_cpuset (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_const_cpuset_t set,
hwloc_obj_t obj)
{
int idx = 0;
if (!hwloc_bitmap_isincluded(obj->cpuset, set))
return -1;
/* count how many objects are inside the cpuset on the way from us to the beginning of the level */
while ((obj = obj->prev_cousin) != NULL)
if (!hwloc_bitmap_iszero(obj->cpuset) && hwloc_bitmap_isincluded(obj->cpuset, set))
idx++;
return idx;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_child_covering_cpuset (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_const_cpuset_t set,
hwloc_obj_t parent) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_child_covering_cpuset (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_const_cpuset_t set,
hwloc_obj_t parent)
{
hwloc_obj_t child;
if (hwloc_bitmap_iszero(set))
return NULL;
child = parent->first_child;
while (child) {
if (child->cpuset && hwloc_bitmap_isincluded(set, child->cpuset))
return child;
child = child->next_sibling;
}
return NULL;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_covering_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_covering_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set)
{
struct hwloc_obj *current = hwloc_get_root_obj(topology);
if (hwloc_bitmap_iszero(set) || !hwloc_bitmap_isincluded(set, current->cpuset))
return NULL;
while (1) {
hwloc_obj_t child = hwloc_get_child_covering_cpuset(topology, set, current);
if (!child)
return current;
current = child;
}
}
static __hwloc_inline hwloc_obj_t
hwloc_get_next_obj_covering_cpuset_by_depth(hwloc_topology_t topology, hwloc_const_cpuset_t set,
int depth, hwloc_obj_t prev)
{
hwloc_obj_t next = hwloc_get_next_obj_by_depth(topology, depth, prev);
if (!next)
return NULL;
while (next && !hwloc_bitmap_intersects(set, next->cpuset))
next = next->next_cousin;
return next;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_next_obj_covering_cpuset_by_type(hwloc_topology_t topology, hwloc_const_cpuset_t set,
hwloc_obj_type_t type, hwloc_obj_t prev)
{
int depth = hwloc_get_type_depth(topology, type);
if (depth == HWLOC_TYPE_DEPTH_UNKNOWN || depth == HWLOC_TYPE_DEPTH_MULTIPLE)
return NULL;
return hwloc_get_next_obj_covering_cpuset_by_depth(topology, set, depth, prev);
}
static __hwloc_inline hwloc_obj_t
hwloc_get_ancestor_obj_by_depth (hwloc_topology_t topology __hwloc_attribute_unused, int depth, hwloc_obj_t obj) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_ancestor_obj_by_depth (hwloc_topology_t topology __hwloc_attribute_unused, int depth, hwloc_obj_t obj)
{
hwloc_obj_t ancestor = obj;
if (obj->depth < depth)
return NULL;
while (ancestor && ancestor->depth > depth)
ancestor = ancestor->parent;
return ancestor;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_ancestor_obj_by_type (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_type_t type, hwloc_obj_t obj) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_ancestor_obj_by_type (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_type_t type, hwloc_obj_t obj)
{
hwloc_obj_t ancestor = obj->parent;
while (ancestor && ancestor->type != type)
ancestor = ancestor->parent;
return ancestor;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_common_ancestor_obj (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj1, hwloc_obj_t obj2) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_common_ancestor_obj (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj1, hwloc_obj_t obj2)
{
/* the loop isn't so easy since intermediate ancestors may have
* different depth, causing us to alternate between using obj1->parent
* and obj2->parent. Also, even if at some point we find ancestors of
* of the same depth, their ancestors may have different depth again.
*/
while (obj1 != obj2) {
while (obj1->depth > obj2->depth)
obj1 = obj1->parent;
while (obj2->depth > obj1->depth)
obj2 = obj2->parent;
if (obj1 != obj2 && obj1->depth == obj2->depth) {
obj1 = obj1->parent;
obj2 = obj2->parent;
}
}
return obj1;
}
static __hwloc_inline int
hwloc_obj_is_in_subtree (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj, hwloc_obj_t subtree_root) __hwloc_attribute_pure;
static __hwloc_inline int
hwloc_obj_is_in_subtree (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj, hwloc_obj_t subtree_root)
{
return obj->cpuset && subtree_root->cpuset && hwloc_bitmap_isincluded(obj->cpuset, subtree_root->cpuset);
}
static __hwloc_inline hwloc_obj_t
hwloc_get_next_child (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t parent, hwloc_obj_t prev)
{
hwloc_obj_t obj;
int state = 0;
if (prev) {
if (prev->type == HWLOC_OBJ_MISC)
state = 3;
else if (hwloc_obj_type_is_io(prev->type))
state = 2;
else if (hwloc_obj_type_is_memory(prev->type))
state = 1;
obj = prev->next_sibling;
} else {
obj = parent->first_child;
}
if (!obj && state == 0) {
obj = parent->memory_first_child;
state = 1;
}
if (!obj && state == 1) {
obj = parent->io_first_child;
state = 2;
}
if (!obj && state == 2) {
obj = parent->misc_first_child;
state = 3;
}
return obj;
}
static __hwloc_inline int
hwloc_get_cache_type_depth (hwloc_topology_t topology,
unsigned cachelevel, hwloc_obj_cache_type_t cachetype)
{
int depth;
int found = HWLOC_TYPE_DEPTH_UNKNOWN;
for (depth=0; ; depth++) {
hwloc_obj_t obj = hwloc_get_obj_by_depth(topology, depth, 0);
if (!obj)
break;
if (!hwloc_obj_type_is_dcache(obj->type) || obj->attr->cache.depth != cachelevel)
/* doesn't match, try next depth */
continue;
if (cachetype == (hwloc_obj_cache_type_t) -1) {
if (found != HWLOC_TYPE_DEPTH_UNKNOWN) {
/* second match, return MULTIPLE */
return HWLOC_TYPE_DEPTH_MULTIPLE;
}
/* first match, mark it as found */
found = depth;
continue;
}
if (obj->attr->cache.type == cachetype || obj->attr->cache.type == HWLOC_OBJ_CACHE_UNIFIED)
/* exact match (either unified is alone, or we match instruction or data), return immediately */
return depth;
}
/* went to the bottom, return what we found */
return found;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_cache_covering_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_cache_covering_cpuset (hwloc_topology_t topology, hwloc_const_cpuset_t set)
{
hwloc_obj_t current = hwloc_get_obj_covering_cpuset(topology, set);
while (current) {
if (hwloc_obj_type_is_dcache(current->type))
return current;
current = current->parent;
}
return NULL;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_shared_cache_covering_obj (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_shared_cache_covering_obj (hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj)
{
hwloc_obj_t current = obj->parent;
if (!obj->cpuset)
return NULL;
while (current) {
if (!hwloc_bitmap_isequal(current->cpuset, obj->cpuset)
&& hwloc_obj_type_is_dcache(current->type))
return current;
current = current->parent;
}
return NULL;
}
HWLOC_DECLSPEC int hwloc_bitmap_singlify_per_core(hwloc_topology_t topology, hwloc_bitmap_t cpuset, unsigned which);
static __hwloc_inline hwloc_obj_t
hwloc_get_pu_obj_by_os_index(hwloc_topology_t topology, unsigned os_index) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_pu_obj_by_os_index(hwloc_topology_t topology, unsigned os_index)
{
hwloc_obj_t obj = NULL;
while ((obj = hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_PU, obj)) != NULL)
if (obj->os_index == os_index)
return obj;
return NULL;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_numanode_obj_by_os_index(hwloc_topology_t topology, unsigned os_index) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_numanode_obj_by_os_index(hwloc_topology_t topology, unsigned os_index)
{
hwloc_obj_t obj = NULL;
while ((obj = hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_NUMANODE, obj)) != NULL)
if (obj->os_index == os_index)
return obj;
return NULL;
}
/* TODO: rather provide an iterator? Provide a way to know how much should be allocated? By returning the total number of objects instead? */
HWLOC_DECLSPEC unsigned hwloc_get_closest_objs (hwloc_topology_t topology, hwloc_obj_t src, hwloc_obj_t * __hwloc_restrict objs, unsigned max);
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_below_by_type (hwloc_topology_t topology,
hwloc_obj_type_t type1, unsigned idx1,
hwloc_obj_type_t type2, unsigned idx2) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_below_by_type (hwloc_topology_t topology,
hwloc_obj_type_t type1, unsigned idx1,
hwloc_obj_type_t type2, unsigned idx2)
{
hwloc_obj_t obj;
obj = hwloc_get_obj_by_type (topology, type1, idx1);
if (!obj)
return NULL;
return hwloc_get_obj_inside_cpuset_by_type(topology, obj->cpuset, type2, idx2);
}
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_below_array_by_type (hwloc_topology_t topology, int nr, hwloc_obj_type_t *typev, unsigned *idxv) __hwloc_attribute_pure;
static __hwloc_inline hwloc_obj_t
hwloc_get_obj_below_array_by_type (hwloc_topology_t topology, int nr, hwloc_obj_type_t *typev, unsigned *idxv)
{
hwloc_obj_t obj = hwloc_get_root_obj(topology);
int i;
for(i=0; i<nr; i++) {
if (!obj)
return NULL;
obj = hwloc_get_obj_inside_cpuset_by_type(topology, obj->cpuset, typev[i], idxv[i]);
}
return obj;
}
HWLOC_DECLSPEC hwloc_obj_t
hwloc_get_obj_with_same_locality(hwloc_topology_t topology, hwloc_obj_t src,
hwloc_obj_type_t type, const char *subtype, const char *nameprefix,
unsigned long flags);
enum hwloc_distrib_flags_e {
HWLOC_DISTRIB_FLAG_REVERSE = (1UL<<0)
};
static __hwloc_inline int
hwloc_distrib(hwloc_topology_t topology,
hwloc_obj_t *roots, unsigned n_roots,
hwloc_cpuset_t *set,
unsigned n,
int until, unsigned long flags)
{
unsigned i;
unsigned tot_weight;
unsigned given, givenweight;
hwloc_cpuset_t *cpusetp = set;
if (!n || (flags & ~HWLOC_DISTRIB_FLAG_REVERSE)) {
errno = EINVAL;
return -1;
}
tot_weight = 0;
for (i = 0; i < n_roots; i++)
tot_weight += (unsigned) hwloc_bitmap_weight(roots[i]->cpuset);
for (i = 0, given = 0, givenweight = 0; i < n_roots; i++) {
unsigned chunk, weight;
hwloc_obj_t root = roots[flags & HWLOC_DISTRIB_FLAG_REVERSE ? n_roots-1-i : i];
hwloc_cpuset_t cpuset = root->cpuset;
while (!hwloc_obj_type_is_normal(root->type))
/* If memory/io/misc, walk up to normal parent */
root = root->parent;
weight = (unsigned) hwloc_bitmap_weight(cpuset);
if (!weight)
continue;
/* Give to root a chunk proportional to its weight.
* If previous chunks got rounded-up, we may get a bit less. */
chunk = (( (givenweight+weight) * n + tot_weight-1) / tot_weight)
- (( givenweight * n + tot_weight-1) / tot_weight);
if (!root->arity || chunk <= 1 || root->depth >= until) {
/* We can't split any more, put everything there. */
if (chunk) {
/* Fill cpusets with ours */
unsigned j;
for (j=0; j < chunk; j++)
cpusetp[j] = hwloc_bitmap_dup(cpuset);
} else {
/* We got no chunk, just merge our cpuset to a previous one
* (the first chunk cannot be empty)
* so that this root doesn't get ignored.
*/
assert(given);
hwloc_bitmap_or(cpusetp[-1], cpusetp[-1], cpuset);
}
} else {
/* Still more to distribute, recurse into children */
hwloc_distrib(topology, root->children, root->arity, cpusetp, chunk, until, flags);
}
cpusetp += chunk;
given += chunk;
givenweight += weight;
}
return 0;
}
HWLOC_DECLSPEC hwloc_const_cpuset_t
hwloc_topology_get_complete_cpuset(hwloc_topology_t topology) __hwloc_attribute_pure;
HWLOC_DECLSPEC hwloc_const_cpuset_t
hwloc_topology_get_topology_cpuset(hwloc_topology_t topology) __hwloc_attribute_pure;
HWLOC_DECLSPEC hwloc_const_cpuset_t
hwloc_topology_get_allowed_cpuset(hwloc_topology_t topology) __hwloc_attribute_pure;
HWLOC_DECLSPEC hwloc_const_nodeset_t
hwloc_topology_get_complete_nodeset(hwloc_topology_t topology) __hwloc_attribute_pure;
HWLOC_DECLSPEC hwloc_const_nodeset_t
hwloc_topology_get_topology_nodeset(hwloc_topology_t topology) __hwloc_attribute_pure;
HWLOC_DECLSPEC hwloc_const_nodeset_t
hwloc_topology_get_allowed_nodeset(hwloc_topology_t topology) __hwloc_attribute_pure;
static __hwloc_inline int
hwloc_cpuset_to_nodeset(hwloc_topology_t topology, hwloc_const_cpuset_t _cpuset, hwloc_nodeset_t nodeset)
{
int depth = hwloc_get_type_depth(topology, HWLOC_OBJ_NUMANODE);
hwloc_obj_t obj = NULL;
assert(depth != HWLOC_TYPE_DEPTH_UNKNOWN);
hwloc_bitmap_zero(nodeset);
while ((obj = hwloc_get_next_obj_covering_cpuset_by_depth(topology, _cpuset, depth, obj)) != NULL)
if (hwloc_bitmap_set(nodeset, obj->os_index) < 0)
return -1;
return 0;
}
static __hwloc_inline int
hwloc_cpuset_from_nodeset(hwloc_topology_t topology, hwloc_cpuset_t _cpuset, hwloc_const_nodeset_t nodeset)
{
int depth = hwloc_get_type_depth(topology, HWLOC_OBJ_NUMANODE);
hwloc_obj_t obj = NULL;
assert(depth != HWLOC_TYPE_DEPTH_UNKNOWN);
hwloc_bitmap_zero(_cpuset);
while ((obj = hwloc_get_next_obj_by_depth(topology, depth, obj)) != NULL) {
if (hwloc_bitmap_isset(nodeset, obj->os_index))
/* no need to check obj->cpuset because objects in levels always have a cpuset */
if (hwloc_bitmap_or(_cpuset, _cpuset, obj->cpuset) < 0)
return -1;
}
return 0;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_non_io_ancestor_obj(hwloc_topology_t topology __hwloc_attribute_unused,
hwloc_obj_t ioobj)
{
hwloc_obj_t obj = ioobj;
while (obj && !obj->cpuset) {
obj = obj->parent;
}
return obj;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_next_pcidev(hwloc_topology_t topology, hwloc_obj_t prev)
{
return hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_PCI_DEVICE, prev);
}
static __hwloc_inline hwloc_obj_t
hwloc_get_pcidev_by_busid(hwloc_topology_t topology,
unsigned domain, unsigned bus, unsigned dev, unsigned func)
{
hwloc_obj_t obj = NULL;
while ((obj = hwloc_get_next_pcidev(topology, obj)) != NULL) {
if (obj->attr->pcidev.domain == domain
&& obj->attr->pcidev.bus == bus
&& obj->attr->pcidev.dev == dev
&& obj->attr->pcidev.func == func)
return obj;
}
return NULL;
}
static __hwloc_inline hwloc_obj_t
hwloc_get_pcidev_by_busidstring(hwloc_topology_t topology, const char *busid)
{
unsigned domain = 0; /* default */
unsigned bus, dev, func;
if (sscanf(busid, "%x:%x.%x", &bus, &dev, &func) != 3
&& sscanf(busid, "%x:%x:%x.%x", &domain, &bus, &dev, &func) != 4) {
errno = EINVAL;
return NULL;
}
return hwloc_get_pcidev_by_busid(topology, domain, bus, dev, func);
}
static __hwloc_inline hwloc_obj_t
hwloc_get_next_osdev(hwloc_topology_t topology, hwloc_obj_t prev)
{
return hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_OS_DEVICE, prev);
}
static __hwloc_inline hwloc_obj_t
hwloc_get_next_bridge(hwloc_topology_t topology, hwloc_obj_t prev)
{
return hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_BRIDGE, prev);
}
/* \brief Checks whether a given bridge covers a given PCI bus.
*
* \return 1 if it covers, 0 if not.
*/
static __hwloc_inline int
hwloc_bridge_covers_pcibus(hwloc_obj_t bridge,
unsigned domain, unsigned bus)
{
return bridge->type == HWLOC_OBJ_BRIDGE
&& bridge->attr->bridge.downstream_type == HWLOC_OBJ_BRIDGE_PCI
&& bridge->attr->bridge.downstream.pci.domain == domain
&& bridge->attr->bridge.downstream.pci.secondary_bus <= bus
&& bridge->attr->bridge.downstream.pci.subordinate_bus >= bus;
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HWLOC_HELPER_H */
hwloc_const_cpuset_t
hwloc_const_bitmap_t hwloc_const_cpuset_t
A non-modifiable hwloc_cpuset_t.
Definition hwloc.h:167
hwloc_const_nodeset_t
hwloc_const_bitmap_t hwloc_const_nodeset_t
A non-modifiable hwloc_nodeset_t.
Definition hwloc.h:186
hwloc_nodeset_t
hwloc_bitmap_t hwloc_nodeset_t
A node set is a bitmap whose bits are set according to NUMA memory node physical OS indexes.
Definition hwloc.h:183
hwloc_cpuset_t
hwloc_bitmap_t hwloc_cpuset_t
A CPU set is a bitmap whose bits are set according to CPU physical OS indexes.
Definition hwloc.h:165
hwloc_obj_cache_type_t
enum hwloc_obj_cache_type_e hwloc_obj_cache_type_t
Cache type.
hwloc_obj_type_t
hwloc_obj_type_t
Type of topology object.
Definition hwloc.h:202
HWLOC_OBJ_BRIDGE_PCI
@ HWLOC_OBJ_BRIDGE_PCI
PCI-side of a bridge.
Definition hwloc.h:373
HWLOC_OBJ_CACHE_UNIFIED
@ HWLOC_OBJ_CACHE_UNIFIED
Unified cache.
Definition hwloc.h:365
HWLOC_OBJ_MISC
@ HWLOC_OBJ_MISC
Miscellaneous objects (filtered out by default). Objects without particular meaning,...
Definition hwloc.h:321
HWLOC_OBJ_OS_DEVICE
@ HWLOC_OBJ_OS_DEVICE
Operating system device (filtered out by default).
Definition hwloc.h:310
HWLOC_OBJ_PCI_DEVICE
@ HWLOC_OBJ_PCI_DEVICE
PCI device (filtered out by default).
Definition hwloc.h:300
HWLOC_OBJ_BRIDGE
@ HWLOC_OBJ_BRIDGE
Bridge (filtered out by default). Any bridge (or PCI switch) that connects the host or an I/O bus,...
Definition hwloc.h:288
HWLOC_OBJ_NUMANODE
@ HWLOC_OBJ_NUMANODE
NUMA node. An object that contains memory that is directly and byte-accessible to the host processors...
Definition hwloc.h:262
HWLOC_OBJ_PU
@ HWLOC_OBJ_PU
Processing Unit, or (Logical) Processor. An execution unit (may share a core with some other logical ...
Definition hwloc.h:227
hwloc_obj_t
struct hwloc_obj * hwloc_obj_t
Convenience typedef; a pointer to a struct hwloc_obj.
Definition hwloc.h:637
hwloc_topology_t
struct hwloc_topology * hwloc_topology_t
Topology context.
Definition hwloc.h:748
hwloc_get_obj_by_type
hwloc_obj_t hwloc_get_obj_by_type(hwloc_topology_t topology, hwloc_obj_type_t type, unsigned idx)
Returns the topology object at logical index idx with type type.
hwloc_get_obj_by_depth
hwloc_obj_t hwloc_get_obj_by_depth(hwloc_topology_t topology, int depth, unsigned idx)
Returns the topology object at logical index idx from depth depth.
hwloc_get_next_obj_by_depth
hwloc_obj_t hwloc_get_next_obj_by_depth(hwloc_topology_t topology, int depth, hwloc_obj_t prev)
Returns the next object at depth depth.
hwloc_get_next_obj_by_type
hwloc_obj_t hwloc_get_next_obj_by_type(hwloc_topology_t topology, hwloc_obj_type_t type, hwloc_obj_t prev)
Returns the next object of type type.
hwloc_get_type_depth
int hwloc_get_type_depth(hwloc_topology_t topology, hwloc_obj_type_t type)
Returns the depth of objects of type type.
hwloc_get_root_obj
hwloc_obj_t hwloc_get_root_obj(hwloc_topology_t topology)
Returns the top-object of the topology-tree.
HWLOC_TYPE_DEPTH_UNKNOWN
@ HWLOC_TYPE_DEPTH_UNKNOWN
No object of given type exists in the topology.
Definition hwloc.h:885
HWLOC_TYPE_DEPTH_MULTIPLE
@ HWLOC_TYPE_DEPTH_MULTIPLE
Objects of given type exist at different depth in the topology (only for Groups).
Definition hwloc.h:886
hwloc_obj_type_is_memory
int hwloc_obj_type_is_memory(hwloc_obj_type_t type)
Check whether an object type is Memory.
hwloc_obj_type_is_cache
int hwloc_obj_type_is_cache(hwloc_obj_type_t type)
Check whether an object type is a CPU Cache (Data, Unified or Instruction).
hwloc_obj_type_is_dcache
int hwloc_obj_type_is_dcache(hwloc_obj_type_t type)
Check whether an object type is a CPU Data or Unified Cache.
hwloc_obj_type_is_normal
int hwloc_obj_type_is_normal(hwloc_obj_type_t type)
Check whether an object type is Normal.
hwloc_obj_type_is_icache
int hwloc_obj_type_is_icache(hwloc_obj_type_t type)
Check whether an object type is a CPU Instruction Cache,.
hwloc_obj_type_is_io
int hwloc_obj_type_is_io(hwloc_obj_type_t type)
Check whether an object type is I/O.
hwloc_get_largest_objs_inside_cpuset
int hwloc_get_largest_objs_inside_cpuset(hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_t *restrict objs, int max)
Get the set of largest objects covering exactly a given cpuset set.
hwloc_get_obj_inside_cpuset_by_depth
hwloc_obj_t hwloc_get_obj_inside_cpuset_by_depth(hwloc_topology_t topology, hwloc_const_cpuset_t set, int depth, unsigned idx)
Return the (logically) idx -th object at depth depth included in CPU set set.
Definition helper.h:224
hwloc_get_obj_index_inside_cpuset
int hwloc_get_obj_index_inside_cpuset(hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_t obj)
Return the logical index among the objects included in CPU set set.
Definition helper.h:347
hwloc_get_nbobjs_inside_cpuset_by_type
int hwloc_get_nbobjs_inside_cpuset_by_type(hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type)
Return the number of objects of type type included in CPU set set.
Definition helper.h:316
hwloc_get_first_largest_obj_inside_cpuset
hwloc_obj_t hwloc_get_first_largest_obj_inside_cpuset(hwloc_topology_t topology, hwloc_const_cpuset_t set)
Get the first largest object included in the given cpuset set.
Definition helper.h:124
hwloc_get_nbobjs_inside_cpuset_by_depth
unsigned hwloc_get_nbobjs_inside_cpuset_by_depth(hwloc_topology_t topology, hwloc_const_cpuset_t set, int depth)
Return the number of objects at depth depth included in CPU set set.
Definition helper.h:284
hwloc_get_next_obj_inside_cpuset_by_type
hwloc_obj_t hwloc_get_next_obj_inside_cpuset_by_type(hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type, hwloc_obj_t prev)
Return the next object of type type included in CPU set set.
Definition helper.h:201
hwloc_get_next_obj_inside_cpuset_by_depth
hwloc_obj_t hwloc_get_next_obj_inside_cpuset_by_depth(hwloc_topology_t topology, hwloc_const_cpuset_t set, int depth, hwloc_obj_t prev)
Return the next object at depth depth included in CPU set set.
Definition helper.h:171
hwloc_get_obj_inside_cpuset_by_type
hwloc_obj_t hwloc_get_obj_inside_cpuset_by_type(hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type, unsigned idx)
Return the idx -th object of type type included in CPU set set.
Definition helper.h:260
hwloc_get_child_covering_cpuset
hwloc_obj_t hwloc_get_child_covering_cpuset(hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_t parent)
Get the child covering at least CPU set set.
Definition helper.h:379
hwloc_get_obj_covering_cpuset
hwloc_obj_t hwloc_get_obj_covering_cpuset(hwloc_topology_t topology, hwloc_const_cpuset_t set)
Get the lowest object covering at least CPU set set.
Definition helper.h:402
hwloc_get_next_obj_covering_cpuset_by_depth
hwloc_obj_t hwloc_get_next_obj_covering_cpuset_by_depth(hwloc_topology_t topology, hwloc_const_cpuset_t set, int depth, hwloc_obj_t prev)
Iterate through same-depth objects covering at least CPU set set.
Definition helper.h:429
hwloc_get_next_obj_covering_cpuset_by_type
hwloc_obj_t hwloc_get_next_obj_covering_cpuset_by_type(hwloc_topology_t topology, hwloc_const_cpuset_t set, hwloc_obj_type_t type, hwloc_obj_t prev)
Iterate through same-type objects covering at least CPU set set.
Definition helper.h:457
hwloc_obj_is_in_subtree
int hwloc_obj_is_in_subtree(hwloc_topology_t topology, hwloc_obj_t obj, hwloc_obj_t subtree_root)
Returns true if obj is inside the subtree beginning with ancestor object subtree_root.
Definition helper.h:565
hwloc_get_next_child
hwloc_obj_t hwloc_get_next_child(hwloc_topology_t topology, hwloc_obj_t parent, hwloc_obj_t prev)
Return the next child.
Definition helper.h:581
hwloc_get_ancestor_obj_by_type
hwloc_obj_t hwloc_get_ancestor_obj_by_type(hwloc_topology_t topology, hwloc_obj_type_t type, hwloc_obj_t obj)
Returns the ancestor object of obj with type type.
Definition helper.h:518
hwloc_get_ancestor_obj_by_depth
hwloc_obj_t hwloc_get_ancestor_obj_by_depth(hwloc_topology_t topology, int depth, hwloc_obj_t obj)
Returns the ancestor object of obj at depth depth.
Definition helper.h:492
hwloc_get_common_ancestor_obj
hwloc_obj_t hwloc_get_common_ancestor_obj(hwloc_topology_t topology, hwloc_obj_t obj1, hwloc_obj_t obj2)
Returns the common parent object to objects obj1 and obj2.
Definition helper.h:535
hwloc_get_shared_cache_covering_obj
hwloc_obj_t hwloc_get_shared_cache_covering_obj(hwloc_topology_t topology, hwloc_obj_t obj)
Get the first data (or unified) cache shared between an object and somebody else.
Definition helper.h:698
hwloc_get_cache_type_depth
int hwloc_get_cache_type_depth(hwloc_topology_t topology, unsigned cachelevel, hwloc_obj_cache_type_t cachetype)
Find the depth of cache objects matching cache level and type.
Definition helper.h:643
hwloc_get_cache_covering_cpuset
hwloc_obj_t hwloc_get_cache_covering_cpuset(hwloc_topology_t topology, hwloc_const_cpuset_t set)
Get the first data (or unified) cache covering a cpuset set.
Definition helper.h:679
hwloc_bitmap_singlify_per_core
int hwloc_bitmap_singlify_per_core(hwloc_topology_t topology, hwloc_bitmap_t cpuset, unsigned which)
Remove simultaneous multithreading PUs from a CPU set.
hwloc_get_closest_objs
unsigned hwloc_get_closest_objs(hwloc_topology_t topology, hwloc_obj_t src, hwloc_obj_t *restrict objs, unsigned max)
Do a depth-first traversal of the topology to find and sort.
hwloc_get_obj_below_by_type
hwloc_obj_t hwloc_get_obj_below_by_type(hwloc_topology_t topology, hwloc_obj_type_t type1, unsigned idx1, hwloc_obj_type_t type2, unsigned idx2)
Find an object below another object, both specified by types and indexes.
Definition helper.h:824
hwloc_get_obj_with_same_locality
hwloc_obj_t hwloc_get_obj_with_same_locality(hwloc_topology_t topology, hwloc_obj_t src, hwloc_obj_type_t type, const char *subtype, const char *nameprefix, unsigned long flags)
Return an object of a different type with same locality.
hwloc_get_pu_obj_by_os_index
hwloc_obj_t hwloc_get_pu_obj_by_os_index(hwloc_topology_t topology, unsigned os_index)
Returns the object of type HWLOC_OBJ_PU with os_index.
Definition helper.h:759
hwloc_get_numanode_obj_by_os_index
hwloc_obj_t hwloc_get_numanode_obj_by_os_index(hwloc_topology_t topology, unsigned os_index)
Returns the object of type HWLOC_OBJ_NUMANODE with os_index.
Definition helper.h:782
hwloc_get_obj_below_array_by_type
hwloc_obj_t hwloc_get_obj_below_array_by_type(hwloc_topology_t topology, int nr, hwloc_obj_type_t *typev, unsigned *idxv)
Find an object below a chain of objects specified by types and indexes.
Definition helper.h:858
hwloc_distrib_flags_e
hwloc_distrib_flags_e
Flags to be given to hwloc_distrib().
Definition helper.h:923
hwloc_distrib
int hwloc_distrib(hwloc_topology_t topology, hwloc_obj_t *roots, unsigned n_roots, hwloc_cpuset_t *set, unsigned n, int until, unsigned long flags)
Distribute n items over the topology under roots.
Definition helper.h:961
HWLOC_DISTRIB_FLAG_REVERSE
@ HWLOC_DISTRIB_FLAG_REVERSE
Distrib in reverse order, starting from the last objects.
Definition helper.h:927
hwloc_topology_get_allowed_nodeset
hwloc_const_nodeset_t hwloc_topology_get_allowed_nodeset(hwloc_topology_t topology)
Get allowed node set.
hwloc_topology_get_topology_nodeset
hwloc_const_nodeset_t hwloc_topology_get_topology_nodeset(hwloc_topology_t topology)
Get topology node set.
hwloc_topology_get_allowed_cpuset
hwloc_const_cpuset_t hwloc_topology_get_allowed_cpuset(hwloc_topology_t topology)
Get allowed CPU set.
hwloc_topology_get_complete_nodeset
hwloc_const_nodeset_t hwloc_topology_get_complete_nodeset(hwloc_topology_t topology)
Get complete node set.
hwloc_topology_get_topology_cpuset
hwloc_const_cpuset_t hwloc_topology_get_topology_cpuset(hwloc_topology_t topology)
Get topology CPU set.
hwloc_topology_get_complete_cpuset
hwloc_const_cpuset_t hwloc_topology_get_complete_cpuset(hwloc_topology_t topology)
Get complete CPU set.
hwloc_cpuset_to_nodeset
int hwloc_cpuset_to_nodeset(hwloc_topology_t topology, hwloc_const_cpuset_t _cpuset, hwloc_nodeset_t nodeset)
Convert a CPU set into a NUMA node set.
Definition helper.h:1156
hwloc_cpuset_from_nodeset
int hwloc_cpuset_from_nodeset(hwloc_topology_t topology, hwloc_cpuset_t _cpuset, hwloc_const_nodeset_t nodeset)
Convert a NUMA node set into a CPU set.
Definition helper.h:1183
hwloc_get_pcidev_by_busid
hwloc_obj_t hwloc_get_pcidev_by_busid(hwloc_topology_t topology, unsigned domain, unsigned bus, unsigned dev, unsigned func)
Find the PCI device object matching the PCI bus id given domain, bus device and function PCI bus id.
Definition helper.h:1250
hwloc_get_next_bridge
hwloc_obj_t hwloc_get_next_bridge(hwloc_topology_t topology, hwloc_obj_t prev)
Get the next bridge in the system.
Definition helper.h:1303
hwloc_get_next_osdev
hwloc_obj_t hwloc_get_next_osdev(hwloc_topology_t topology, hwloc_obj_t prev)
Get the next OS device in the system.
Definition helper.h:1291
hwloc_get_next_pcidev
hwloc_obj_t hwloc_get_next_pcidev(hwloc_topology_t topology, hwloc_obj_t prev)
Get the next PCI device in the system.
Definition helper.h:1239
hwloc_get_non_io_ancestor_obj
hwloc_obj_t hwloc_get_non_io_ancestor_obj(hwloc_topology_t topology, hwloc_obj_t ioobj)
Get the first non-I/O ancestor object.
Definition helper.h:1222
hwloc_bridge_covers_pcibus
int hwloc_bridge_covers_pcibus(hwloc_obj_t bridge, unsigned domain, unsigned bus)
Definition helper.h:1313
hwloc_get_pcidev_by_busidstring
hwloc_obj_t hwloc_get_pcidev_by_busidstring(hwloc_topology_t topology, const char *busid)
Find the PCI device object matching the PCI bus id given as a string xxxx:yy:zz.t or yy:zz....
Definition helper.h:1270
hwloc_bitmap_weight
int hwloc_bitmap_weight(hwloc_const_bitmap_t bitmap)
Compute the "weight" of bitmap bitmap (i.e., number of indexes that are in the bitmap).
hwloc_bitmap_isincluded
int hwloc_bitmap_isincluded(hwloc_const_bitmap_t sub_bitmap, hwloc_const_bitmap_t super_bitmap)
Test whether bitmap sub_bitmap is part of bitmap super_bitmap.
hwloc_bitmap_set
int hwloc_bitmap_set(hwloc_bitmap_t bitmap, unsigned id)
Add index id in bitmap bitmap.
hwloc_bitmap_isset
int hwloc_bitmap_isset(hwloc_const_bitmap_t bitmap, unsigned id)
Test whether index id is part of bitmap bitmap.
hwloc_bitmap_or
int hwloc_bitmap_or(hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Or bitmaps bitmap1 and bitmap2 and store the result in bitmap res.
hwloc_bitmap_isequal
int hwloc_bitmap_isequal(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Test whether bitmap bitmap1 is equal to bitmap bitmap2.
hwloc_bitmap_iszero
int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap)
Test whether bitmap bitmap is empty.
hwloc_bitmap_t
struct hwloc_bitmap_s * hwloc_bitmap_t
Set of bits represented as an opaque pointer to an internal bitmap.
Definition bitmap.h:70
hwloc_bitmap_zero
void hwloc_bitmap_zero(hwloc_bitmap_t bitmap)
Empty the bitmap bitmap.
hwloc_bitmap_dup
hwloc_bitmap_t hwloc_bitmap_dup(hwloc_const_bitmap_t bitmap)
Duplicate bitmap bitmap by allocating a new bitmap and copying bitmap contents.
hwloc_bitmap_intersects
int hwloc_bitmap_intersects(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Test whether bitmaps bitmap1 and bitmap2 intersects.
hwloc_obj
Structure of a topology object.
Definition hwloc.h:437
hwloc_obj::children
struct hwloc_obj ** children
Normal children, children[0 .. arity -1].
Definition hwloc.h:497
hwloc_obj::nodeset
hwloc_nodeset_t nodeset
NUMA nodes covered by this object or containing this object.
Definition hwloc.h:581
hwloc_obj::depth
int depth
Vertical index in the hierarchy.
Definition hwloc.h:460
hwloc_obj::misc_first_child
struct hwloc_obj * misc_first_child
First Misc child. Misc objects are listed here (misc_arity and misc_first_child) instead of in the no...
Definition hwloc.h:546
hwloc_obj::subtype
char * subtype
Subtype string to better describe the type field.
Definition hwloc.h:440
hwloc_obj::os_index
unsigned os_index
OS-provided physical index number. It is not guaranteed unique across the entire machine,...
Definition hwloc.h:442
hwloc_obj::cpuset
hwloc_cpuset_t cpuset
CPUs covered by this object.
Definition hwloc.h:553
hwloc_obj::next_sibling
struct hwloc_obj * next_sibling
Next object below the same parent (inside the same list of children).
Definition hwloc.h:489
hwloc_obj::next_cousin
struct hwloc_obj * next_cousin
Next object of same type and depth.
Definition hwloc.h:483
hwloc_obj::io_first_child
struct hwloc_obj * io_first_child
First I/O child. Bridges, PCI and OS devices are listed here (io_arity and io_first_child) instead of...
Definition hwloc.h:534
hwloc_obj::arity
unsigned arity
Number of normal children. Memory, Misc and I/O children are not listed here but rather in their dedi...
Definition hwloc.h:493
hwloc_obj::memory_first_child
struct hwloc_obj * memory_first_child
First Memory child. NUMA nodes and Memory-side caches are listed here (memory_arity and memory_first_...
Definition hwloc.h:516
hwloc_obj::prev_cousin
struct hwloc_obj * prev_cousin
Previous object of same type and depth.
Definition hwloc.h:484
hwloc_obj::type
hwloc_obj_type_t type
Type of object.
Definition hwloc.h:439
hwloc_obj::attr
union hwloc_obj_attr_u * attr
Object type-specific Attributes, may be NULL if no attribute value was found.
Definition hwloc.h:456
hwloc_obj::parent
struct hwloc_obj * parent
Parent, NULL if root (Machine object).
Definition hwloc.h:487
hwloc_obj::first_child
struct hwloc_obj * first_child
First normal child.
Definition hwloc.h:498
hwloc_obj_attr_u::pcidev
struct hwloc_obj_attr_u::hwloc_pcidev_attr_s pcidev
hwloc_obj_attr_u::bridge
struct hwloc_obj_attr_u::hwloc_bridge_attr_s bridge
hwloc_obj_attr_u::cache
struct hwloc_obj_attr_u::hwloc_cache_attr_s cache
hwloc_obj_attr_u::hwloc_cache_attr_s::depth
unsigned depth
Depth of cache (e.g., L1, L2, ...etc.).
Definition hwloc.h:659
hwloc_obj_attr_u::hwloc_cache_attr_s::type
hwloc_obj_cache_type_t type
Cache type.
Definition hwloc.h:663
hwloc_obj_attr_u::hwloc_pcidev_attr_s::dev
unsigned char dev
Device number (zz in the PCI BDF notation xxxx:yy:zz.t).
Definition hwloc.h:683
hwloc_obj_attr_u::hwloc_pcidev_attr_s::func
unsigned char func
Function number (t in the PCI BDF notation xxxx:yy:zz.t).
Definition hwloc.h:684
hwloc_obj_attr_u::hwloc_pcidev_attr_s::domain
unsigned short domain
Domain number (xxxx in the PCI BDF notation xxxx:yy:zz.t). Only 16bits PCI domains are supported by d...
Definition hwloc.h:676
hwloc_obj_attr_u::hwloc_pcidev_attr_s::bus
unsigned char bus
Bus number (yy in the PCI BDF notation xxxx:yy:zz.t).
Definition hwloc.h:682
hwloc_obj_attr_u::hwloc_bridge_attr_s::pci
struct hwloc_pcidev_attr_s pci
PCI attribute of the upstream part as a PCI device.
Definition hwloc.h:701
hwloc_obj_attr_u::hwloc_bridge_attr_s::downstream
union hwloc_obj_attr_u::hwloc_bridge_attr_s::@053170066102111230130247327254166030164172265134 downstream
hwloc_obj_attr_u::hwloc_bridge_attr_s::downstream_type
hwloc_obj_bridge_type_t downstream_type
Downstream Bridge type.
Definition hwloc.h:717