cpuquiet: public interfaces for cpuquiet

Change-Id: Ie391d6d11fad7b76b0bf5daff67ac46663651dc0
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-on: http://git-master/r/105265
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sai Gurrappadi <sgurrappadi@nvidia.com>
Tested-by: Sai Gurrappadi <sgurrappadi@nvidia.com>
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
Rebase-Id: R7d711a55352cde2eac5ddbe86be2f97bb576dd57

diff --git a/include/linux/cpuquiet.h b/include/linux/cpuquiet.h
new file mode 100644 (file)
index 0000000..8459af7
--- /dev/null
+++ b/include/linux/cpuquiet.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2012 NVIDIA CORPORATION.  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; version 2 of the License.
+ *
+ * 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 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ */
+
+#ifndef _LINUX_CPUONLINE_H
+#define _LINUX_CPUONLINE_H
+
+#include <linux/sysfs.h>
+#include <linux/kobject.h>
+
+#define CPUQUIET_NAME_LEN 16
+
+struct cpuquiet_governor {
+       char                    name[CPUQUIET_NAME_LEN];
+       struct list_head        governor_list;
+       int (*start)            (void);
+       void (*stop)            (void);
+       int (*store_active)     (unsigned int cpu, bool active);
+       struct module           *owner;
+};
+
+struct cpuquiet_driver {
+       char                    name[CPUQUIET_NAME_LEN];
+       int (*quiesence_cpu)    (unsigned int cpunumber);
+       int (*wake_cpu)         (unsigned int cpunumber);
+};
+
+extern int cpuquiet_register_governor(struct cpuquiet_governor *gov);
+extern void cpuquiet_unregister_governor(struct cpuquiet_governor *gov);
+extern int cpuquiet_quiesence_cpu(unsigned int cpunumber);
+extern int cpuquiet_wake_cpu(unsigned int cpunumber);
+extern int cpuquiet_register_driver(struct cpuquiet_driver *drv);
+extern void cpuquiet_unregister_driver(struct cpuquiet_driver *drv);
+extern int cpuquiet_add_group(struct attribute_group *attrs);
+extern void cpuquiet_remove_group(struct attribute_group *attrs);
+int cpuquiet_kobject_init(struct kobject *kobj, struct kobj_type *type,
+                               char *name);
+extern unsigned int nr_cluster_ids;
+#endif