diff options
Diffstat (limited to 'src/soc/intel/xeon_sp/spr/cpu.c')
| -rw-r--r-- | src/soc/intel/xeon_sp/spr/cpu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/spr/cpu.c b/src/soc/intel/xeon_sp/spr/cpu.c index c9ed8e12c9..15cb84642d 100644 --- a/src/soc/intel/xeon_sp/spr/cpu.c +++ b/src/soc/intel/xeon_sp/spr/cpu.c @@ -224,6 +224,12 @@ static int get_thread_count(void) { unsigned int num_phys = 0, num_virts = 0; + /* + * This call calculates the thread count which is corresponding to num_virts + * (logical cores), while num_phys is corresponding to physical cores (in SMT + * system, one physical core has multiple threads, a.k.a. logical cores). + * Hence num_phys is not actually used. + */ cpu_read_topology(&num_phys, &num_virts); printk(BIOS_SPEW, "Detected %u cores and %u threads\n", num_phys, num_virts); return num_virts * soc_get_num_cpus(); |