mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-26 10:49:33 +00:00
Code Issues Releases Wiki Activity

tools/power/x86/intel-speed-select: turbo-freq auto mode with SMT off

Browse source 
When SMT is disabled from kernel command line, sibling CPUs still
appears in the sysfs as offline CPUs. This is a problem when turbo-freq
is enabled in auto mode. They are still assigned to CLOS value
of 3 as they are still in the present CPU list. But they are not in the
sibling list of a CPU. When the CPU is a high priority CPU, because of
sibling it will be still set to CLOS to 3 as CLOS is assigned at core
level not at CPU level.

So, avoid setting CLOS 3 to offline CPU.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Srinivas Pandruvada 2023-01-06 17:48:07 -08:00 committed by Hans de Goede
parent cf3b8e8f55
commit 6ed9e36315
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
tools/power/x86/intel-speed-select/isst-config.c
View file

@ -2066,6 +2066,9 @@ static void set_fact_enable(int arg)
if (!CPU_ISSET_S(i, present_cpumask_size, present_cpumask))
continue;
if (is_cpu_online(i) != 1)
continue;
set_isst_id(&id, i);
ret = set_clos_param(&id, 0, 0, 0, 0, 0xff);
if (ret)