| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.0 25/72] MIPS: smp-cps: cpu_set FPU mask if FPU present | Date | Mon, 11 May 2015 10:54:31 -0700 |
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4.0-stable review patch. If anyone has any objections, please let me know.
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From: Niklas Cassel <niklas.cassel@axis.com>
Commit 90db024f140d0d6ad960cc5f090e3c8ed890ca55 upstream.
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@axis.com> Cc: paul.burton@imgtec.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8948/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- arch/mips/kernel/smp-cps.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- 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)
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