Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 52190baa authored by Runmin Wang's avatar Runmin Wang
Browse files

drivers: base: arch_topology: swap the order of updating shared_cap_level 



Update the shared_cap_level from DIE level to THREAD level. If a higher
level has shared_cap_level set, we also consider lower level sharing
capacity state.

Change-Id: I96bd0a80d2af7937311f131e6f46cca3a82af7b0
Signed-off-by: default avatarRunmin Wang <runminw@codeaurora.org>
parent 900e62ac

drivers/base/arch_topology.c

+7 −7
Original line number Diff line number Diff line
@@ -158,9 +158,9 @@ int detect_share_cap_flag(void) 
		if (!policy)

			return 0;



		if (cpumask_equal(topology_sibling_cpumask(cpu),

		if (cpumask_equal(cpu_cpu_mask(cpu),

				  policy->related_cpus)) {

			share_cap_level = share_cap_thread;

			share_cap_level = share_cap_die;

			continue;

		}
@@ -170,9 +170,9 @@ int detect_share_cap_flag(void) 
			continue;

		}



		if (cpumask_equal(cpu_cpu_mask(cpu),

		if (cpumask_equal(topology_sibling_cpumask(cpu),

				  policy->related_cpus)) {

			share_cap_level = share_cap_die;

			share_cap_level = share_cap_thread;

			continue;

		}

	}
@@ -268,7 +268,7 @@ int topology_smt_flags(void) 
	if (asym_cpucap == asym_thread)

		flags |= SD_ASYM_CPUCAPACITY;



	if (share_cap == share_cap_thread)

	if (share_cap >= share_cap_thread)

		flags |= SD_SHARE_CAP_STATES;



	return flags;
@@ -281,7 +281,7 @@ int topology_core_flags(void) 
	if (asym_cpucap == asym_core)

		flags |= SD_ASYM_CPUCAPACITY;



	if (share_cap == share_cap_core)

	if (share_cap >= share_cap_core)

		flags |= SD_SHARE_CAP_STATES;



	return flags;
@@ -294,7 +294,7 @@ int topology_cpu_flags(void) 
	if (asym_cpucap == asym_die)

		flags |= SD_ASYM_CPUCAPACITY;



	if (share_cap == share_cap_die)

	if (share_cap >= share_cap_die)

		flags |= SD_SHARE_CAP_STATES;



	return flags;

kernel/sched/fair.c

+6 −3
Original line number Diff line number Diff line
@@ -5966,9 +5966,12 @@ static int compute_energy(struct energy_env *eenv) 
		 * when we took visit_cpus.

		 */

		sd = rcu_dereference(per_cpu(sd_scs, cpu));

		if (sd && sd->parent)

		if (sd) {

			if (sd->parent)

				sg_shared_cap = sd->parent->groups;



			else /* single cluster system */

				sg_shared_cap = sd->groups;

		}

		for_each_domain(cpu, sd) {

			sg = sd->groups;

			/* Has this sched_domain already been visited? */