[MIPS] MT: Scheduler support for SMT

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 11bc17ce0ebf..d5a89f3fdfd3 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1442,6 +1442,7 @@ config MIPS_MT_SMP
         select MIPS_MT
         select NR_CPUS_DEFAULT_2
         select SMP
+        select SYS_SUPPORTS_SCHED_SMT if SMP
         select SYS_SUPPORTS_SMP
         help
           This is a kernel model which is also known a VSMP or lately
@@ -1468,6 +1469,19 @@ endchoice
 config MIPS_MT
         bool
 
+config SCHED_SMT
+        bool "SMT (multithreading) scheduler support"
+        depends on SYS_SUPPORTS_SCHED_SMT
+        default n
+        help
+          SMT scheduler support improves the CPU scheduler's decision making
+          when dealing with MIPS MT enabled cores at a cost of slightly
+          increased overhead in some places. If unsure say N here.
+
+config SYS_SUPPORTS_SCHED_SMT
+        bool
+
+
 config SYS_SUPPORTS_MULTITHREADING
         bool