uapi/linux/psci.h

1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3  * ARM Power State and Coordination Interface (PSCI) header
5  * This header holds common PSCI defines and macros shared
16  * PSCI v0.1 interface
18  * The PSCI v0.1 function numbers are implementation defined.
20  * Only PSCI return values such as: SUCCESS, NOT_SUPPORTED,
22  * to PSCI v0.1.
25 /* PSCI v0.2 interface */
34 #define PSCI_0_2_FN_CPU_SUSPEND			PSCI_0_2_FN(1)
44 #define PSCI_0_2_FN64_CPU_SUSPEND		PSCI_0_2_FN64(1)
74 /* PSCI v0.2 power state encoding for CPU_SUSPEND function */
84 /* PSCI extended power state encoding for CPU_SUSPEND function */
91 /* PSCI v0.2 affinity level state returned by AFFINITY_INFO */
93 #define PSCI_0_2_AFFINITY_LEVEL_OFF		1
96 /* PSCI v0.2 multicore support in Trusted OS returned by MIGRATE_INFO_TYPE */
98 #define PSCI_0_2_TOS_UP_NO_MIGRATE		1
101 /* PSCI v1.1 reset type encoding for SYSTEM_RESET2 */
105 /* PSCI v1.3 hibernate type for SYSTEM_OFF2 */
108 /* PSCI version decoding (independent of PSCI version) */
111 		((1U << PSCI_VERSION_MAJOR_SHIFT) - 1)
121 /* PSCI features decoding (>=1.0) */
122 #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT	1
128 #define PSCI_1_0_SUSPEND_MODE_OSI		1
130 /* PSCI return values (inclusive of all PSCI versions) */
132 #define PSCI_RET_NOT_SUPPORTED			-1
133 #define PSCI_RET_INVALID_PARAMS			-2
134 #define PSCI_RET_DENIED				-3
135 #define PSCI_RET_ALREADY_ON			-4
136 #define PSCI_RET_ON_PENDING			-5
137 #define PSCI_RET_INTERNAL_FAILURE		-6
138 #define PSCI_RET_NOT_PRESENT			-7
139 #define PSCI_RET_DISABLED			-8
140 #define PSCI_RET_INVALID_ADDRESS		-9