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>
[k.kozlowski: rebased on 4.1, no signed-off-by of previous committer]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6634a22..2e2dc55 100644 (file)
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5172,12 +5172,13 @@ 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