diff options
Diffstat (limited to 'arch/loongarch/kernel/acpi.c')
| -rw-r--r-- | arch/loongarch/kernel/acpi.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c index 98f431157e4c..9450e09073eb 100644 --- a/arch/loongarch/kernel/acpi.c +++ b/arch/loongarch/kernel/acpi.c @@ -33,6 +33,8 @@ u64 acpi_saved_sp; #define PREFIX "ACPI: " +struct acpi_madt_core_pic acpi_core_pic[NR_CPUS]; + void __init __iomem * __acpi_map_table(unsigned long phys, unsigned long size) { @@ -99,6 +101,7 @@ acpi_parse_processor(union acpi_subtable_headers *header, const unsigned long en acpi_table_print_madt_entry(&header->common); #ifdef CONFIG_SMP + acpi_core_pic[processor->core_id] = *processor; set_processor_mask(processor->core_id, processor->flags); #endif @@ -140,6 +143,35 @@ static void __init acpi_process_madt(void) loongson_sysconf.nr_cpus = num_processors; } +int pptt_enabled; + +int __init parse_acpi_topology(void) +{ + int cpu, topology_id; + + for_each_possible_cpu(cpu) { + topology_id = find_acpi_cpu_topology(cpu, 0); + if (topology_id < 0) { + pr_warn("Invalid BIOS PPTT\n"); + return -ENOENT; + } + + if (acpi_pptt_cpu_is_thread(cpu) <= 0) + cpu_data[cpu].core = topology_id; + else { + topology_id = find_acpi_cpu_topology(cpu, 1); + if (topology_id < 0) + return -ENOENT; + + cpu_data[cpu].core = topology_id; + } + } + + pptt_enabled = 1; + + return 0; +} + #ifndef CONFIG_SUSPEND int (*acpi_suspend_lowlevel)(void); #else |