diff options
Diffstat (limited to 'arch/riscv/kernel/setup.c')
| -rw-r--r-- | arch/riscv/kernel/setup.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index 07f4e7503223..145128a7e560 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -16,12 +16,13 @@ #include <linux/of_platform.h> #include <linux/sched/task.h> #include <linux/swiotlb.h> +#include <linux/smp.h> #include <asm/clint.h> +#include <asm/cpu_ops.h> #include <asm/setup.h> #include <asm/sections.h> #include <asm/pgtable.h> -#include <asm/smp.h> #include <asm/sbi.h> #include <asm/tlbflush.h> #include <asm/thread_info.h> @@ -47,6 +48,7 @@ struct screen_info screen_info = { */ atomic_t hart_lottery __section(.sdata); unsigned long boot_cpu_hartid; +static DEFINE_PER_CPU(struct cpu, cpu_devices); void __init parse_dtb(void) { @@ -94,3 +96,18 @@ void __init setup_arch(char **cmdline_p) riscv_fill_hwcap(); } + +static int __init topology_init(void) +{ + int i; + + for_each_possible_cpu(i) { + struct cpu *cpu = &per_cpu(cpu_devices, i); + + cpu->hotpluggable = cpu_has_hotplug(i); + register_cpu(cpu, i); + } + + return 0; +} +subsys_initcall(topology_init); |