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authorChris Redpath <chris.redpath@arm.com>2014-01-09 10:40:30 +0000
committerJon Medhurst <tixy@linaro.org>2014-01-22 09:50:44 +0000
commitba8ed8301f5bca4a44c80e2173c66391b76898df (patch)
tree514f08b725183868060de1130a971bf4eac1b5b3
parent257e5075a1433513bb354f202adcd2dea8a8dc08 (diff)
downloadlinaro-lsk-ba8ed8301f5bca4a44c80e2173c66391b76898df.tar.gz
sched: hmp: Change TC2 packing config to disabled default if present
Since TC2 power curves don't really have a utilisation hotspot where packing makes sense, if it is present for a TC2 system at least make it default to disabled. Signed-off-by: Chris Redpath <chris.redpath@arm.com> Signed-off-by: Jon Medhurst <tixy@linaro.org>
-rw-r--r--kernel/sched/fair.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 28debe3047b..d89f4a8ddf4 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3676,12 +3676,13 @@ unsigned int hmp_next_up_threshold = 4096;
unsigned int hmp_next_down_threshold = 4096;
#ifdef CONFIG_SCHED_HMP_LITTLE_PACKING
-unsigned int hmp_packing_enabled = 1;
#ifndef CONFIG_ARCH_VEXPRESS_TC2
+unsigned int hmp_packing_enabled = 1;
unsigned int hmp_full_threshold = (NICE_0_LOAD * 9) / 8;
#else
/* TC2 has a sharp consumption curve @ around 800Mhz, so
we aim to spread the load around that frequency. */
+unsigned int hmp_packing_enabled;
unsigned int hmp_full_threshold = 650; /* 80% of the 800Mhz freq * NICE_0_LOAD */
#endif
#endif