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-rw-r--r--arch/arm/mach-vexpress/include/mach/tc2.h10
-rw-r--r--arch/arm/mach-vexpress/tc2_pm.c16
2 files changed, 21 insertions, 5 deletions
diff --git a/arch/arm/mach-vexpress/include/mach/tc2.h b/arch/arm/mach-vexpress/include/mach/tc2.h
new file mode 100644
index 00000000000..d3b5a2225a0
--- /dev/null
+++ b/arch/arm/mach-vexpress/include/mach/tc2.h
@@ -0,0 +1,10 @@
+#ifndef __MACH_TC2_H
+#define __MACH_TC2_H
+
+/*
+ * cpu and cluster limits
+ */
+#define TC2_MAX_CPUS 3
+#define TC2_MAX_CLUSTERS 2
+
+#endif
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c
index 54757301ca5..52173568d6c 100644
--- a/arch/arm/mach-vexpress/tc2_pm.c
+++ b/arch/arm/mach-vexpress/tc2_pm.c
@@ -25,6 +25,7 @@
#include <asm/cp15.h>
#include <mach/motherboard.h>
+#include <mach/tc2.h>
#include <linux/vexpress.h>
#include <linux/arm-cci.h>
@@ -37,12 +38,13 @@
*/
static arch_spinlock_t tc2_pm_lock = __ARCH_SPIN_LOCK_UNLOCKED;
-static int tc2_pm_use_count[3][2];
+static int tc2_pm_use_count[TC2_MAX_CPUS][TC2_MAX_CLUSTERS];
static int tc2_pm_power_up(unsigned int cpu, unsigned int cluster)
{
pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
- if (cluster >= 2 || cpu >= vexpress_spc_get_nb_cpus(cluster))
+ if (cluster >= TC2_MAX_CLUSTERS ||
+ cpu >= vexpress_spc_get_nb_cpus(cluster))
return -EINVAL;
/*
@@ -90,7 +92,8 @@ static void tc2_pm_down(u64 residency)
cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
- BUG_ON(cluster >= 2 || cpu >= vexpress_spc_get_nb_cpus(cluster));
+ BUG_ON(cluster >= TC2_MAX_CLUSTERS ||
+ cpu >= vexpress_spc_get_nb_cpus(cluster));
__mcpm_cpu_going_down(cpu, cluster);
@@ -194,7 +197,8 @@ static void tc2_pm_powered_up(void)
cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
- BUG_ON(cluster >= 2 || cpu >= vexpress_spc_get_nb_cpus(cluster));
+ BUG_ON(cluster >= TC2_MAX_CLUSTERS ||
+ cpu >= vexpress_spc_get_nb_cpus(cluster));
local_irq_save(flags);
arch_spin_lock(&tc2_pm_lock);
@@ -232,7 +236,9 @@ static void __init tc2_pm_usage_count_init(void)
cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
- BUG_ON(cpu >= 3 || cluster >= 2);
+ BUG_ON(cluster >= TC2_MAX_CLUSTERS ||
+ cpu >= vexpress_spc_get_nb_cpus(cluster));
+
tc2_pm_use_count[cpu][cluster] = 1;
}