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Commit bb2a4442 authored by Dietmar Eggemann's avatar Dietmar Eggemann Committed by Andres Oportus
Browse files

ANDROID: arm64: Set SD_ASYM_CPUCAPACITY sched_domain flag on DIE level 



Enable Capacity-Aware_scheduling.

This is a shortcut from the EAS integration implementation. We know
there are SoCs in use which have asymmetric cpu capacities on DIE level.

Change-Id: I7f1326e86b8fc08b65d1c1341da7d1ef1013dcbc
Signed-off-by: default avatarDietmar Eggemann <dietmar.eggemann@arm.com>
(cherry picked from commit 82f95a8cdff67770f02b7e4f5b1c084f42afc0e2)
Signed-off-by: default avatarChris Redpath <chris.redpath@arm.com>
Signed-off-by: default avatarQuentin Perret <quentin.perret@arm.com>
parent 5dbcddec

arch/arm64/kernel/topology.c

+6 −1
Original line number Diff line number Diff line
@@ -258,6 +258,11 @@ const struct cpumask *cpu_coregroup_mask(int cpu) 
	return &cpu_topology[cpu].core_sibling;

}



static int cpu_cpu_flags(void)

{

	return SD_ASYM_CPUCAPACITY;

}



static inline int cpu_corepower_flags(void)

{

	return SD_SHARE_PKG_RESOURCES  | SD_SHARE_POWERDOMAIN | \
@@ -268,7 +273,7 @@ static struct sched_domain_topology_level arm64_topology[] = { 
#ifdef CONFIG_SCHED_MC

	{ cpu_coregroup_mask, cpu_corepower_flags, cpu_core_energy, SD_INIT_NAME(MC) },

#endif

	{ cpu_cpu_mask, NULL, cpu_cluster_energy, SD_INIT_NAME(DIE) },

	{ cpu_cpu_mask, cpu_cpu_flags, cpu_cluster_energy, SD_INIT_NAME(DIE) },

	{ NULL, },

};