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-rw-r--r--include/linux/sched.h23
1 files changed, 22 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ada2402..11f4724 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -704,6 +704,7 @@ enum cpu_idle_type {
#define SD_POWERSAVINGS_BALANCE 256 /* Balance for power savings */
#define SD_SHARE_PKG_RESOURCES 512 /* Domain members share cpu pkg resources */
#define SD_SERIALIZE 1024 /* Only a single load balancing instance */
+#define SD_WAKE_IDLE_FAR 2048 /* Gain latency sacrificing cache hit */
#define BALANCE_FOR_MC_POWER \
(sched_smt_power_savings ? SD_POWERSAVINGS_BALANCE : 0)
@@ -733,6 +734,24 @@ struct sched_group {
u32 reciprocal_cpu_power;
};
+enum sched_domain_level {
+ SD_LV_NONE = 0,
+ SD_LV_SIBLING,
+ SD_LV_MC,
+ SD_LV_CPU,
+ SD_LV_NODE,
+ SD_LV_ALLNODES,
+ SD_LV_MAX
+};
+
+struct sched_domain_attr {
+ int relax_domain_level;
+};
+
+#define SD_ATTR_INIT (struct sched_domain_attr) { \
+ .relax_domain_level = -1, \
+}
+
struct sched_domain {
/* These fields must be setup */
struct sched_domain *parent; /* top domain must be null terminated */
@@ -750,6 +769,7 @@ struct sched_domain {
unsigned int wake_idx;
unsigned int forkexec_idx;
int flags; /* See SD_* */
+ enum sched_domain_level level;
/* Runtime fields. */
unsigned long last_balance; /* init to jiffies. units in jiffies */
@@ -789,7 +809,8 @@ struct sched_domain {
#endif
};
-extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new);
+extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new,
+ struct sched_domain_attr *dattr_new);
extern int arch_reinit_sched_domains(void);
#endif /* CONFIG_SMP */
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