diff options
| -rw-r--r-- | arch/riscv/kernel/cpu.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/arch/riscv/kernel/cpu.c b/arch/riscv/kernel/cpu.c index c96aa56cf1c7..5de6fb703cc2 100644 --- a/arch/riscv/kernel/cpu.c +++ b/arch/riscv/kernel/cpu.c @@ -3,10 +3,12 @@ * Copyright (C) 2012 Regents of the University of California */ +#include <linux/acpi.h> #include <linux/cpu.h> #include <linux/init.h> #include <linux/seq_file.h> #include <linux/of.h> +#include <asm/acpi.h> #include <asm/cpufeature.h> #include <asm/csr.h> #include <asm/hwcap.h> @@ -283,23 +285,35 @@ static void c_stop(struct seq_file *m, void *v) static int c_show(struct seq_file *m, void *v) { unsigned long cpu_id = (unsigned long)v - 1; - struct device_node *node = of_get_cpu_node(cpu_id, NULL); struct riscv_cpuinfo *ci = per_cpu_ptr(&riscv_cpuinfo, cpu_id); + struct device_node *node; const char *compat, *isa; seq_printf(m, "processor\t: %lu\n", cpu_id); seq_printf(m, "hart\t\t: %lu\n", cpuid_to_hartid_map(cpu_id)); - if (!of_property_read_string(node, "riscv,isa", &isa)) - print_isa(m, isa); - print_mmu(m); - if (!of_property_read_string(node, "compatible", &compat) - && strcmp(compat, "riscv")) - seq_printf(m, "uarch\t\t: %s\n", compat); + + if (acpi_disabled) { + node = of_get_cpu_node(cpu_id, NULL); + if (!of_property_read_string(node, "riscv,isa", &isa)) + print_isa(m, isa); + + print_mmu(m); + if (!of_property_read_string(node, "compatible", &compat) && + strcmp(compat, "riscv")) + seq_printf(m, "uarch\t\t: %s\n", compat); + + of_node_put(node); + } else { + if (!acpi_get_riscv_isa(NULL, cpu_id, &isa)) + print_isa(m, isa); + + print_mmu(m); + } + seq_printf(m, "mvendorid\t: 0x%lx\n", ci->mvendorid); seq_printf(m, "marchid\t\t: 0x%lx\n", ci->marchid); seq_printf(m, "mimpid\t\t: 0x%lx\n", ci->mimpid); seq_puts(m, "\n"); - of_node_put(node); return 0; } |