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 <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16195/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ef1cb20cfbb37e9659d31eab004b96bcfec3a903..a986116dabb53d681c6fd2c0de73b0b517700e4d 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2381,6 +2381,7 @@ 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