diff options
| author | Dietmar Eggemann <dietmar.eggemann@arm.com> | 2016-11-30 20:36:31 +0000 |
|---|---|---|
| committer | Andres Oportus <andresoportus@google.com> | 2017-06-02 08:01:52 -0700 |
| commit | 65cad23dcdf7334c785a3c7fd74bdec633156364 (patch) | |
| tree | 9cca91a93557a6afedecfc6a5ca9a4163c78c081 /arch/arm64 | |
| parent | c6cc7ca9151303d56b519ffcf129c5ecbca9af58 (diff) | |
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: Dietmar Eggemann <dietmar.eggemann@arm.com>
(cherry picked from commit 82f95a8cdff67770f02b7e4f5b1c084f42afc0e2)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/topology.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c index 5b2c67a510d8..7758f7ff131b 100644 --- a/arch/arm64/kernel/topology.c +++ b/arch/arm64/kernel/topology.c @@ -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, }, }; |