New config option which enables new scheduler logic: HPERF_HMP. Also
adds the following options:
'HPERF_HMP_DEBUG': enables extra runtime checks of balancing parameteres.
'HMP_FAST_CPU_MASK': CPU mask of A15 cluster(in hex string).
'HMP_SLOW_CPU_MASK': CPU mask of A7 cluster(in hex string).
Signed-off-by: Tarek Dakhran <t.dakh...@samsung.com>
Signed-off-by: Sergey Dyasly <s.dya...@samsung.com>
Signed-off-by: Dmitriy Safonov <d.safo...@partner.samsung.com>
Signed-off-by: Arseniy Krasnov <a.kras...@samsung.com>
Signed-off-by: Ilya Maximets <i.maxim...@samsung.com>
---
arch/arm/Kconfig | 21 +++++++++++++++++++++
arch/arm64/Kconfig | 21 +++++++++++++++++++++
2 files changed, 42 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 72ad724..0581914 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1387,6 +1387,27 @@ config SCHED_MC
making when dealing with multi-core CPU chips at a cost of slightly
increased overhead in some places. If unsure say N here.
+config HPERF_HMP
+ bool "HPERF_HMP load balancing enhancements for ARM big.LITTLE"
+ select SCHED_MC
+ help
+ Uses HPERF_HMP load balancing algorithm between A7 and A15 CPU
domains.
+
+config HPERF_HMP_DEBUG
+ bool "Additional HPERF_HMP runtime debug checks"
+ depends on HPERF_HMP
+ default n
+
+config HMP_FAST_CPU_MASK
+ string "Fast (Cortex-A15) CPU mask for HPERF_HMP"
+ default ""
+ depends on HPERF_HMP
+
+config HMP_SLOW_CPU_MASK
+ string "Slow (Cortex-A7) CPU mask for HPERF_HMP"
+ default ""
+ depends on HPERF_HMP
+
config SCHED_SMT
bool "SMT scheduler support"
depends on ARM_CPU_TOPOLOGY
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 07d1811..71a8983 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -412,6 +412,27 @@ config SCHED_MC
making when dealing with multi-core CPU chips at a cost of slightly
increased overhead in some places. If unsure say N here.
+config HPERF_HMP
+ bool "HPERF_HMP load balancing enhancements for ARM big.LITTLE"
+ select SCHED_MC
+ help
+ Uses HPERF_HMP load balancing algorithm between A7 and A15 CPU
domains.
+
+config HPERF_HMP_DEBUG
+ bool "Additional HPERF_HMP runtime debug checks"
+ depends on HPERF_HMP
+ default n
+
+config HMP_FAST_CPU_MASK
+ string "Fast (Cortex-A15) CPU mask for HPERF_HMP"
+ default ""
+ depends on HPERF_HMP
+
+config HMP_SLOW_CPU_MASK
+ string "Slow (Cortex-A7) CPU mask for HPERF_HMP"
+ default ""
+ depends on HPERF_HMP
+
config SCHED_SMT
bool "SMT scheduler support"
help
--
1.9.1
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