From 6dc1107e55f5b6eefd6c6314624905e33bac5b49 Mon Sep 17 00:00:00 2001 From: Sai Charan Gurrappadi Date: Tue, 10 Jul 2012 17:33:58 -0700 Subject: ARM: tegra: cpuquiet: Notify the cpuquiet governor when the driver is busy Added generic busy/free notifiers that the driver can invoke to let the governor know that it cannot process further core online/offline requests (invoked in our case whenever we switch to the LP cluster). Change-Id: I5e3f7f28f38806a7f87050e8d0c8d2f2cf7521aa Signed-off-by: Sai Charan Gurrappadi Reviewed-on: http://git-master/r/114807 Reviewed-by: Lokesh Pathak Tested-by: Lokesh Pathak --- include/linux/cpuquiet.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/cpuquiet.h b/include/linux/cpuquiet.h index fe5a03727739..5558c015bb50 100644 --- a/include/linux/cpuquiet.h +++ b/include/linux/cpuquiet.h @@ -30,6 +30,8 @@ struct cpuquiet_governor { int (*start) (void); void (*stop) (void); int (*store_active) (unsigned int cpu, bool active); + void (*device_free_notification) (void); + void (*device_busy_notification) (void); struct module *owner; }; @@ -47,6 +49,8 @@ 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); +extern void cpuquiet_device_busy(void); +extern void cpuquiet_device_free(void); int cpuquiet_kobject_init(struct kobject *kobj, struct kobj_type *type, char *name); extern unsigned int nr_cluster_ids; -- cgit v1.2.3