On 7/9/2013 8:55 AM, Morten Rasmussen wrote:
Extends the power scheduler capacity management algorithm to handle
frequency scaling and provide basic frequency/P-state selection hints
to the power driver.
Signed-off-by: Morten Rasmussen <[email protected]>
CC: Ingo Molnar <[email protected]>
CC: Peter Zijlstra <[email protected]>
CC: Catalin Marinas <[email protected]>
---
kernel/sched/power.c | 33 ++++++++++++++++++++++++++++-----
1 file changed, 28 insertions(+), 5 deletions(-)
diff --git a/kernel/sched/power.c b/kernel/sched/power.c
index 9e44c0e..5fc32b0 100644
--- a/kernel/sched/power.c
+++ b/kernel/sched/power.c
@@ -21,6 +21,8 @@
#define INTERVAL 5 /* ms */
#define CPU_FULL 90 /* Busy %-age - TODO: Make tunable */
+#define CPU_TARGET 80 /* Target busy %-age - TODO: Make tunable */
+#define CPU_EMPTY 5 /* Idle noise %-age - TODO: Make tunable */
to be honest, this is the policy part that really should be in the hardware
specific driver
and not in the scheduler.
(even if said driver is sort of a "generic library" kind of thing)
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