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sched: hmp: Change TC2 packing config to disabled default if present

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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>
This commit is contained in:
Chris Redpath
2014-01-09 10:40:30 +00:00
committed by Jon Medhurst
parent 257e5075a1
commit ba8ed8301f
1 changed files with 2 additions and 1 deletions
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3
kernel/sched/fair.c
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@@ -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