From: Niklas Cassel <niklas.cassel@xxxxxxxx> This patch has been added to the 3.18 stable tree. If you have any objections, please let us know. =============== [ Upstream commit 90db024f140d0d6ad960cc5f090e3c8ed890ca55 ] If we have an FPU, enroll ourselves in the FPU-full mask. Matching the MT_SMP and CMP implementations of smp_setup. Signed-off-by: Niklas Cassel <niklass@xxxxxxxx> Cc: paul.burton@xxxxxxxxxx Cc: linux-mips@xxxxxxxxxxxxxx Patchwork: https://patchwork.linux-mips.org/patch/8948/ Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx> --- arch/mips/kernel/smp-cps.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index e6e16a1..0854f17 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -88,6 +88,12 @@ static void __init cps_smp_setup(void) /* Make core 0 coherent with everything */ write_gcr_cl_coherence(0xff); + +#ifdef CONFIG_MIPS_MT_FPAFF + /* If we have an FPU, enroll ourselves in the FPU-full mask */ + if (cpu_has_fpu) + cpu_set(0, mt_fpu_cpumask); +#endif /* CONFIG_MIPS_MT_FPAFF */ } static void __init cps_prepare_cpus(unsigned int max_cpus) -- 2.1.0
