diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 59a4727ecd6c074672e82d8bb4ec7638912957f6..86ee362a13756897819c5c43b8035321eb98078d 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -48,6 +48,7 @@ config RISCV select PCI_MSI if PCI select RISCV_TIMER select GENERIC_IRQ_MULTI_HANDLER + select GENERIC_ARCH_TOPOLOGY if SMP select ARCH_HAS_PTE_SPECIAL select ARCH_HAS_MMIOWB select HAVE_EBPF_JIT if 64BIT diff --git a/arch/riscv/kernel/smpboot.c b/arch/riscv/kernel/smpboot.c index 7462a44304feb7023f923e965cad9f41b5883ed4..18ae6da5115e53d4612f84dc8a0898b863e8b55e 100644 --- a/arch/riscv/kernel/smpboot.c +++ b/arch/riscv/kernel/smpboot.c @@ -8,6 +8,7 @@ * Copyright (C) 2017 SiFive */ +#include #include #include #include @@ -35,6 +36,7 @@ static DECLARE_COMPLETION(cpu_running); void __init smp_prepare_boot_cpu(void) { + init_cpu_topology(); } void __init smp_prepare_cpus(unsigned int max_cpus) @@ -138,6 +140,7 @@ asmlinkage void __init smp_callin(void) trap_init(); notify_cpu_starting(smp_processor_id()); + update_siblings_masks(smp_processor_id()); set_cpu_online(smp_processor_id(), 1); /* * Remote TLB flushes are ignored while the CPU is offline, so emit