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-rw-r--r--kernel/arch/arm/include/asm/psci.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/kernel/arch/arm/include/asm/psci.h b/kernel/arch/arm/include/asm/psci.h
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index 000000000..c25ef3ec6
--- /dev/null
+++ b/kernel/arch/arm/include/asm/psci.h
@@ -0,0 +1,48 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2012 ARM Limited
+ */
+
+#ifndef __ASM_ARM_PSCI_H
+#define __ASM_ARM_PSCI_H
+
+#define PSCI_POWER_STATE_TYPE_STANDBY 0
+#define PSCI_POWER_STATE_TYPE_POWER_DOWN 1
+
+struct psci_power_state {
+ u16 id;
+ u8 type;
+ u8 affinity_level;
+};
+
+struct psci_operations {
+ int (*cpu_suspend)(struct psci_power_state state,
+ unsigned long entry_point);
+ int (*cpu_off)(struct psci_power_state state);
+ int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
+ int (*migrate)(unsigned long cpuid);
+ int (*affinity_info)(unsigned long target_affinity,
+ unsigned long lowest_affinity_level);
+ int (*migrate_info_type)(void);
+};
+
+extern struct psci_operations psci_ops;
+extern struct smp_operations psci_smp_ops;
+
+#ifdef CONFIG_ARM_PSCI
+int psci_init(void);
+bool psci_smp_available(void);
+#else
+static inline int psci_init(void) { return 0; }
+static inline bool psci_smp_available(void) { return false; }
+#endif
+
+#endif /* __ASM_ARM_PSCI_H */