From 8ff67c307fe61df31b8a256af4226eb78568b60f Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Fri, 2 Jun 2017 14:48:52 -0700 Subject: [PATCH] UPSTREAM: MIPS: CPS: Select CONFIG_SYS_SUPPORTS_SCHED_SMT for MIPSr6 Prior to MIPSr6 multithreading is only supported if CONFIG_MIPS_MT_SMP is enabled, so CONFIG_MIPS_MT_SMP selects CONFIG_SYS_SUPPORTS_SCHED_SMT. With MIPSr6 the CONFIG_MIPS_CPS SMP implementation always supports multithreading, so have it select CONFIG_SYS_SUPPORTS_SCHED_SMT in order to allow the scheduler to make better informed decisions on multithreaded MIPSr6 systems (for example those using I6400 or I6500 CPUs). Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16195/ Signed-off-by: Ralf Baechle (cherry picked from commit c8b7712c34d0604e2540608731bd5e9202c1139e) Signed-off-by: Greg Kroah-Hartman --- arch/mips/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 7b673c1cc2dc..a0383f86e230 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2336,6 +2336,7 @@ config MIPS_CPS select SMP select SYNC_R4K if (CEVT_R4K || CSRC_R4K) select SYS_SUPPORTS_HOTPLUG_CPU + select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 select SYS_SUPPORTS_SMP select WEAK_ORDERING help