drivers: cpuidle: lpm-levels: Support for different CPUs in a cluster
The newer FCM microarchitecture allows for CPUs with different
performance and power characteristics to be part of the same cluster.
The CPUs have different power performances, like latency and residency
for different low power mode.
Adding support to differentiate between CPUs within a single cluster.
Change-Id: I61fbe6d1b9e6963b5db269a079254be82a7b9d3c
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
diff --git a/drivers/cpuidle/lpm-levels.h b/drivers/cpuidle/lpm-levels.h
index 9875edd..c9f272e 100644
--- a/drivers/cpuidle/lpm-levels.h
+++ b/drivers/cpuidle/lpm-levels.h
@@ -45,10 +45,13 @@
};
struct lpm_cpu {
+ struct list_head list;
+ struct cpumask related_cpus;
struct lpm_cpu_level levels[NR_LPM_LEVELS];
int nlevels;
unsigned int psci_mode_shift;
unsigned int psci_mode_mask;
+ struct cpuidle_driver *drv;
struct lpm_cluster *parent;
};
@@ -104,8 +107,7 @@
int min_child_level;
int default_level;
int last_level;
- struct lpm_cpu *cpu;
- struct cpuidle_driver *drv;
+ struct list_head cpu;
spinlock_t sync_lock;
struct cpumask child_cpus;
struct cpumask num_children_in_sync;