github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-30 19:21:28 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

sched/walt: fix handling of up/down migrate

Browse Source 
The code currently unnecessarily checks for cap_margin_levels > 1.
In SMP systems where num_sched_clusters = 1 we still use a single
sched_cluster with all the cpus. So we dont have to handle
num_sched_cluster =1 (or 2) separately.

Change-Id: Ie9a8dda70555f02d64df11b310fd56727f149633
Signed-off-by: Abhijeet Dharmapurikar <quic_adharmap@quicinc.com>
This commit is contained in:
Abhijeet Dharmapurikar 2022-09-22 15:00:47 -07:00 committed by Stephen Dickey
parent 0b76f7d59d
commit 87f1fd9d34
1 changed files with 8 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
kernel/sched/walt/sysctl.c
View File

@ -365,39 +365,25 @@ static void sched_update_updown_migrate_values(bool up)
{
int i = 0, cpu;
struct walt_sched_cluster *cluster;
int cap_margin_levels = num_sched_clusters - 1;
if (cap_margin_levels > 1) {
for_each_sched_cluster(cluster) {
/*
* No need to worry about CPUs in last cluster
* if there are more than 2 clusters in the system
*/
for_each_sched_cluster(cluster) {
for_each_cpu(cpu, &cluster->cpus) {
if (up)
sched_capacity_margin_up[cpu] =
SCHED_FIXEDPOINT_SCALE * 100 /
sysctl_sched_capacity_margin_up_pct[i];
else
sched_capacity_margin_down[cpu] =
SCHED_FIXEDPOINT_SCALE * 100 /
sysctl_sched_capacity_margin_dn_pct[i];
}
if (++i >= cap_margin_levels)
break;
}
} else {
for_each_possible_cpu(cpu) {
for_each_cpu(cpu, &cluster->cpus) {
if (up)
sched_capacity_margin_up[cpu] =
SCHED_FIXEDPOINT_SCALE * 100 /
sysctl_sched_capacity_margin_up_pct[0];
sysctl_sched_capacity_margin_up_pct[i];
else
sched_capacity_margin_down[cpu] =
sysctl_sched_capacity_margin_dn_pct[0];
SCHED_FIXEDPOINT_SCALE * 100 /
sysctl_sched_capacity_margin_dn_pct[i];
}
if (++i >= num_sched_clusters - 1)
break;
}
}