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authorSai Charan Gurrappadi <sgurrappadi@nvidia.com>2012-07-10 17:33:58 -0700
committerDan Willemsen <dwillemsen@nvidia.com>2013-09-14 01:33:43 -0700
commit3c3be5e319466178f4549039421eb8303c18b9d9 (patch)
treeba594f19f86c87c9b0073bc5839d61875e2ff8af /drivers/cpuquiet
parent4f097d58a8238bc5c8b394dea51182d70bc50655 (diff)
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 <sgurrappadi@nvidia.com> Reviewed-on: http://git-master/r/114807 Reviewed-by: Lokesh Pathak <lpathak@nvidia.com> Tested-by: Lokesh Pathak <lpathak@nvidia.com>
Diffstat (limited to 'drivers/cpuquiet')
-rw-r--r--drivers/cpuquiet/governor.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/cpuquiet/governor.c b/drivers/cpuquiet/governor.c
index 7895fccc7f42..176ba3bd705f 100644
--- a/drivers/cpuquiet/governor.c
+++ b/drivers/cpuquiet/governor.c
@@ -100,3 +100,17 @@ void cpuquiet_unregister_governor(struct cpuquiet_governor *gov)
list_del(&gov->governor_list);
mutex_unlock(&cpuquiet_lock);
}
+
+void cpuquiet_device_busy(void)
+{
+ if (cpuquiet_curr_governor &&
+ cpuquiet_curr_governor->device_busy_notification)
+ cpuquiet_curr_governor->device_busy_notification();
+}
+
+void cpuquiet_device_free(void)
+{
+ if (cpuquiet_curr_governor &&
+ cpuquiet_curr_governor->device_free_notification)
+ cpuquiet_curr_governor->device_free_notification();
+}