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sched/walt: update walt_get_indicies for 4 clusters

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walt_get_indices() was written for a 3 cluster system. In
the future it is necessary to support 2, 3 and 4 cluster
systems.

Make the appropriate changes to walt_get_indices such that
cpus are visited in the correct order for each of these
topologies.

Change-Id: Iae60c152aaa561326adccc0e92056e598dde2679
Signed-off-by: Stephen Dickey <quic_dickey@quicinc.com>
This commit is contained in:
Stephen Dickey 2022-09-22 13:09:40 -07:00
parent 9003596e0b
commit a569117648
1 changed files with 11 additions and 10 deletions
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21
kernel/sched/walt/walt_cfs.c
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@ -165,8 +165,6 @@ static void walt_get_indicies(struct task_struct *p, int *order_index,
int *end_index, int per_task_boost, bool is_uclamp_boosted,
bool *energy_eval_needed)
{
int i = 0;
*order_index = 0;
*end_index = 0;
@ -182,9 +180,12 @@ static void walt_get_indicies(struct task_struct *p, int *order_index,
if (is_full_throttle_boost()) {
*energy_eval_needed = false;
*order_index = num_sched_clusters - 1;
if ((*order_index > 1) && task_demand_fits(p,
cpumask_first(&cpu_array[*order_index][1])))
*end_index = 1;
*end_index = num_sched_clusters - 2;
for (; *end_index >= 0; (*end_index)--)
if (task_demand_fits(p,
cpumask_first(&cpu_array[*order_index][*end_index])))
break;
return;
}
@ -193,19 +194,19 @@ static void walt_get_indicies(struct task_struct *p, int *order_index,
walt_task_skip_min_cpu(p)) {
*energy_eval_needed = false;
*order_index = 1;
*end_index = max(0, num_sched_clusters - 3);
if (sysctl_sched_asymcap_boost) {
*end_index = 1;
(*end_index)++;
return;
}
}
for (i = *order_index ; i < num_sched_clusters - 1; i++) {
if (task_demand_fits(p, cpumask_first(&cpu_array[i][0])))
for (; *order_index < num_sched_clusters - 1; (*order_index)++) {
if (task_demand_fits(p, cpumask_first(&cpu_array[*order_index][0])))
break;
}
*order_index = i;
if (*order_index == 0 &&
(task_util(p) >= MIN_UTIL_FOR_ENERGY_EVAL) &&
!(p->in_iowait && task_in_related_thread_group(p)) &&