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: Dietmar Eggemann <dietmar.eggemann@arm.com>
(cherry picked from commit 82f95a8cdff67770f02b7e4f5b1c084f42afc0e2)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 5b2c67a..7758f7f 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -258,6 +258,11 @@
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 @@
#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, },
};