gl.h
/*
* Copyright © 2012 Blue Brain Project, EPFL. All rights reserved.
* Copyright © 2012-2013 Inria. All rights reserved.
* See COPYING in top-level directory.
*/
#ifndef HWLOC_GL_H
#define HWLOC_GL_H
#include <hwloc.h>
#include <stdio.h>
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif
static inline hwloc_obj_t
hwloc_gl_get_display_osdev_by_port_device(hwloc_topology_t topology,
unsigned port, unsigned device)
{
unsigned x = (unsigned) -1, y = (unsigned) -1;
hwloc_obj_t osdev = NULL;
while ((osdev = hwloc_get_next_osdev(topology, osdev)) != NULL) {
if (HWLOC_OBJ_OSDEV_GPU == osdev->attr->osdev.type
&& osdev->name
&& sscanf(osdev->name, ":%u.%u", &x, &y) == 2
&& port == x && device == y)
return osdev;
}
errno = EINVAL;
return NULL;
}
static inline hwloc_obj_t
hwloc_gl_get_display_osdev_by_name(hwloc_topology_t topology,
const char *name)
{
hwloc_obj_t osdev = NULL;
while ((osdev = hwloc_get_next_osdev(topology, osdev)) != NULL) {
if (HWLOC_OBJ_OSDEV_GPU == osdev->attr->osdev.type
&& osdev->name
&& !strcmp(name, osdev->name))
return osdev;
}
errno = EINVAL;
return NULL;
}
static inline int
hwloc_gl_get_display_by_osdev(hwloc_topology_t topology ,
hwloc_obj_t osdev,
unsigned *port, unsigned *device)
{
unsigned x = -1, y = -1;
if (HWLOC_OBJ_OSDEV_GPU == osdev->attr->osdev.type
&& sscanf(osdev->name, ":%u.%u", &x, &y) == 2) {
*port = x;
*device = y;
return 0;
}
errno = EINVAL;
return -1;
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HWLOC_GL_H */