| /* |
| * GPL HEADER START |
| * |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 only, |
| * as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License version 2 for more details (a copy is included |
| * in the LICENSE file that accompanied this code). |
| * |
| * GPL HEADER END |
| */ |
| /* |
| * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2012, Intel Corporation. |
| */ |
| /* |
| * This file is part of Lustre, http://www.lustre.org/ |
| * Lustre is a trademark of Sun Microsystems, Inc. |
| * |
| * libcfs/include/libcfs/linux/linux-cpu.h |
| * |
| * Basic library routines. |
| * |
| * Author: liang@whamcloud.com |
| */ |
| |
| #ifndef __LIBCFS_LINUX_CPU_H__ |
| #define __LIBCFS_LINUX_CPU_H__ |
| |
| #ifndef __LIBCFS_LIBCFS_H__ |
| #error Do not #include this file directly. #include <linux/libcfs/libcfs.h> instead |
| #endif |
| |
| #include <linux/cpu.h> |
| #include <linux/cpuset.h> |
| #include <linux/topology.h> |
| |
| #ifdef CONFIG_SMP |
| |
| #define HAVE_LIBCFS_CPT |
| |
| /** virtual processing unit */ |
| struct cfs_cpu_partition { |
| /* CPUs mask for this partition */ |
| cpumask_t *cpt_cpumask; |
| /* nodes mask for this partition */ |
| nodemask_t *cpt_nodemask; |
| /* spread rotor for NUMA allocator */ |
| unsigned cpt_spread_rotor; |
| }; |
| |
| /** descriptor for CPU partitions */ |
| struct cfs_cpt_table { |
| /* version, reserved for hotplug */ |
| unsigned ctb_version; |
| /* spread rotor for NUMA allocator */ |
| unsigned ctb_spread_rotor; |
| /* # of CPU partitions */ |
| unsigned ctb_nparts; |
| /* partitions tables */ |
| struct cfs_cpu_partition *ctb_parts; |
| /* shadow HW CPU to CPU partition ID */ |
| int *ctb_cpu2cpt; |
| /* all cpus in this partition table */ |
| cpumask_t *ctb_cpumask; |
| /* all nodes in this partition table */ |
| nodemask_t *ctb_nodemask; |
| }; |
| |
| #endif /* CONFIG_SMP */ |
| #endif /* __LIBCFS_LINUX_CPU_H__ */ |