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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/base/topology.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/base/topology.c')
-rw-r--r-- | ANDROID_3.4.5/drivers/base/topology.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/ANDROID_3.4.5/drivers/base/topology.c b/ANDROID_3.4.5/drivers/base/topology.c deleted file mode 100644 index ae989c57..00000000 --- a/ANDROID_3.4.5/drivers/base/topology.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * driver/base/topology.c - Populate sysfs with cpu topology information - * - * Written by: Zhang Yanmin, Intel Corporation - * - * Copyright (C) 2006, Intel Corp. - * - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/cpu.h> -#include <linux/module.h> -#include <linux/hardirq.h> -#include <linux/topology.h> - -#define define_one_ro_named(_name, _func) \ - static DEVICE_ATTR(_name, 0444, _func, NULL) - -#define define_one_ro(_name) \ - static DEVICE_ATTR(_name, 0444, show_##_name, NULL) - -#define define_id_show_func(name) \ -static ssize_t show_##name(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - unsigned int cpu = dev->id; \ - return sprintf(buf, "%d\n", topology_##name(cpu)); \ -} - -#if defined(topology_thread_cpumask) || defined(topology_core_cpumask) || \ - defined(topology_book_cpumask) -static ssize_t show_cpumap(int type, const struct cpumask *mask, char *buf) -{ - ptrdiff_t len = PTR_ALIGN(buf + PAGE_SIZE - 1, PAGE_SIZE) - buf; - int n = 0; - - if (len > 1) { - n = type? - cpulist_scnprintf(buf, len-2, mask) : - cpumask_scnprintf(buf, len-2, mask); - buf[n++] = '\n'; - buf[n] = '\0'; - } - return n; -} -#endif - -#ifdef arch_provides_topology_pointers -#define define_siblings_show_map(name) \ -static ssize_t show_##name(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - unsigned int cpu = dev->id; \ - return show_cpumap(0, topology_##name(cpu), buf); \ -} - -#define define_siblings_show_list(name) \ -static ssize_t show_##name##_list(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - unsigned int cpu = dev->id; \ - return show_cpumap(1, topology_##name(cpu), buf); \ -} - -#else -#define define_siblings_show_map(name) \ -static ssize_t show_##name(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - return show_cpumap(0, topology_##name(dev->id), buf); \ -} - -#define define_siblings_show_list(name) \ -static ssize_t show_##name##_list(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - return show_cpumap(1, topology_##name(dev->id), buf); \ -} -#endif - -#define define_siblings_show_func(name) \ - define_siblings_show_map(name); define_siblings_show_list(name) - -define_id_show_func(physical_package_id); -define_one_ro(physical_package_id); - -define_id_show_func(core_id); -define_one_ro(core_id); - -define_siblings_show_func(thread_cpumask); -define_one_ro_named(thread_siblings, show_thread_cpumask); -define_one_ro_named(thread_siblings_list, show_thread_cpumask_list); - -define_siblings_show_func(core_cpumask); -define_one_ro_named(core_siblings, show_core_cpumask); -define_one_ro_named(core_siblings_list, show_core_cpumask_list); - -#ifdef CONFIG_SCHED_BOOK -define_id_show_func(book_id); -define_one_ro(book_id); -define_siblings_show_func(book_cpumask); -define_one_ro_named(book_siblings, show_book_cpumask); -define_one_ro_named(book_siblings_list, show_book_cpumask_list); -#endif - -static struct attribute *default_attrs[] = { - &dev_attr_physical_package_id.attr, - &dev_attr_core_id.attr, - &dev_attr_thread_siblings.attr, - &dev_attr_thread_siblings_list.attr, - &dev_attr_core_siblings.attr, - &dev_attr_core_siblings_list.attr, -#ifdef CONFIG_SCHED_BOOK - &dev_attr_book_id.attr, - &dev_attr_book_siblings.attr, - &dev_attr_book_siblings_list.attr, -#endif - NULL -}; - -static struct attribute_group topology_attr_group = { - .attrs = default_attrs, - .name = "topology" -}; - -/* Add/Remove cpu_topology interface for CPU device */ -static int __cpuinit topology_add_dev(unsigned int cpu) -{ - struct device *dev = get_cpu_device(cpu); - - return sysfs_create_group(&dev->kobj, &topology_attr_group); -} - -static void __cpuinit topology_remove_dev(unsigned int cpu) -{ - struct device *dev = get_cpu_device(cpu); - - sysfs_remove_group(&dev->kobj, &topology_attr_group); -} - -static int __cpuinit topology_cpu_callback(struct notifier_block *nfb, - unsigned long action, void *hcpu) -{ - unsigned int cpu = (unsigned long)hcpu; - int rc = 0; - - switch (action) { - case CPU_UP_PREPARE: - case CPU_UP_PREPARE_FROZEN: - rc = topology_add_dev(cpu); - break; - case CPU_UP_CANCELED: - case CPU_UP_CANCELED_FROZEN: - case CPU_DEAD: - case CPU_DEAD_FROZEN: - topology_remove_dev(cpu); - break; - } - return notifier_from_errno(rc); -} - -static int __cpuinit topology_sysfs_init(void) -{ - int cpu; - int rc; - - for_each_online_cpu(cpu) { - rc = topology_add_dev(cpu); - if (rc) - return rc; - } - hotcpu_notifier(topology_cpu_callback, 0); - - return 0; -} - -device_initcall(topology_sysfs_init); |