Hi all, Apparently, this patch was flagged as "Not Applicable" without an explanation. Why? https://patchwork.kernel.org/project/linux-mips/patch/20210224073336.32265-1-noltari@xxxxxxxxx/ Best regarss, Álvaro. > El 24 feb 2021, a las 8:33, Álvaro Fernández Rojas <noltari@xxxxxxxxx> escribió: > > When booting bmips with SMP enabled on a BCM6358 running on CPU #1 instead of > CPU #0, the current CPU mapping code produces the following: > - smp_processor_id(): 0 > - cpu_logical_map(0): 1 > - cpu_number_map(0): 1 > > This is because SMP isn't supported on BCM6358 since it has a shared TLB, so > it is disabled and max_cpus is decreased from 2 to 1. > > Signed-off-by: Álvaro Fernández Rojas <noltari@xxxxxxxxx> > Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx> > --- > v2: Fix duplicated line > > arch/mips/kernel/smp-bmips.c | 27 +++++++++++++++++---------- > 1 file changed, 17 insertions(+), 10 deletions(-) > > diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c > index 359b176b665f..b6ef5f7312cf 100644 > --- a/arch/mips/kernel/smp-bmips.c > +++ b/arch/mips/kernel/smp-bmips.c > @@ -134,17 +134,24 @@ static void __init bmips_smp_setup(void) > if (!board_ebase_setup) > board_ebase_setup = &bmips_ebase_setup; > > - __cpu_number_map[boot_cpu] = 0; > - __cpu_logical_map[0] = boot_cpu; > - > - for (i = 0; i < max_cpus; i++) { > - if (i != boot_cpu) { > - __cpu_number_map[i] = cpu; > - __cpu_logical_map[cpu] = i; > - cpu++; > + if (max_cpus > 1) { > + __cpu_number_map[boot_cpu] = 0; > + __cpu_logical_map[0] = boot_cpu; > + > + for (i = 0; i < max_cpus; i++) { > + if (i != boot_cpu) { > + __cpu_number_map[i] = cpu; > + __cpu_logical_map[cpu] = i; > + cpu++; > + } > + set_cpu_possible(i, 1); > + set_cpu_present(i, 1); > } > - set_cpu_possible(i, 1); > - set_cpu_present(i, 1); > + } else { > + __cpu_number_map[0] = boot_cpu; > + __cpu_logical_map[0] = 0; > + set_cpu_possible(0, 1); > + set_cpu_present(0, 1); > } > } > > -- > 2.20.1 >
