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| author | Huacai Chen <chenhuacai@loongson.cn> | 2023-06-29 20:58:43 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-06-29 20:58:43 +0800 |
| commit | f6f0c9a74a48448583c3cb0f3f067bc3fe0f13c6 (patch) | |
| tree | e31359d5a5de9d228a03ba15ca70a3855586c902 /arch/loongarch/kernel/proc.c | |
| parent | 616500232e632dba8b03981eeccadacf2fbf1c30 (diff) | |
LoongArch: Add SMT (Simultaneous Multi-Threading) support
Loongson-3A6000 has SMT (Simultaneous Multi-Threading) support, each
physical core has two logical cores (threads). This patch add SMT probe
and scheduler support via ACPI PPTT.
If SCHED_SMT enabled, Loongson-3A6000 is treated as 4 cores, 8 threads;
If SCHED_SMT disabled, Loongson-3A6000 is treated as 8 cores, 8 threads.
Remove smp_num_siblings to support HMP (Heterogeneous Multi-Processing).
Signed-off-by: Liupu Wang <wangliupu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/kernel/proc.c')
| -rw-r--r-- | arch/loongarch/kernel/proc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/proc.c b/arch/loongarch/kernel/proc.c index 0d82907b5404..d4b270630bb5 100644 --- a/arch/loongarch/kernel/proc.c +++ b/arch/loongarch/kernel/proc.c @@ -49,6 +49,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) seq_printf(m, "processor\t\t: %ld\n", n); seq_printf(m, "package\t\t\t: %d\n", cpu_data[n].package); seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core); + seq_printf(m, "global_id\t\t: %d\n", cpu_data[n].global_id); seq_printf(m, "CPU Family\t\t: %s\n", __cpu_family[n]); seq_printf(m, "Model Name\t\t: %s\n", __cpu_full_name[n]); seq_printf(m, "CPU Revision\t\t: 0x%02x\n", version); |