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ARMv7: PSCI: add PSCI v1.0 functions skeleton

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This patch adds all the PSCI v1.0 functions in to the common framework, with
all the functions returning "not implemented" by default, as a common framework
all the dummy functions are added here, it is up to every platform developer to
decide which version of PSCI and which functions to implement.

Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Signed-off-by: Wang Dongsheng <dongsheng.wang@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Hongbo Zhang 2016-07-21 18:09:36 +08:00 committed by York Sun
parent 9d3b8bd166
commit 116339d460
2 changed files with 94 additions and 0 deletions
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78
arch/arm/cpu/armv7/psci.S
View File

@ -46,20 +46,62 @@ ENTRY(default_psci_vector)
ENDPROC(default_psci_vector)
.weak default_psci_vector
ENTRY(psci_version)
ENTRY(psci_cpu_suspend)
ENTRY(psci_cpu_off)
ENTRY(psci_cpu_on)
ENTRY(psci_affinity_info)
ENTRY(psci_migrate)
ENTRY(psci_migrate_info_type)
ENTRY(psci_migrate_info_up_cpu)
ENTRY(psci_system_off)
ENTRY(psci_system_reset)
ENTRY(psci_features)
ENTRY(psci_cpu_freeze)
ENTRY(psci_cpu_default_suspend)
ENTRY(psci_node_hw_state)
ENTRY(psci_system_suspend)
ENTRY(psci_set_suspend_mode)
ENTRY(psi_stat_residency)
ENTRY(psci_stat_count)
mov r0, #ARM_PSCI_RET_NI @ Return -1 (Not Implemented)
mov pc, lr
ENDPROC(psci_stat_count)
ENDPROC(psi_stat_residency)
ENDPROC(psci_set_suspend_mode)
ENDPROC(psci_system_suspend)
ENDPROC(psci_node_hw_state)
ENDPROC(psci_cpu_default_suspend)
ENDPROC(psci_cpu_freeze)
ENDPROC(psci_features)
ENDPROC(psci_system_reset)
ENDPROC(psci_system_off)
ENDPROC(psci_migrate_info_up_cpu)
ENDPROC(psci_migrate_info_type)
ENDPROC(psci_migrate)
ENDPROC(psci_affinity_info)
ENDPROC(psci_cpu_on)
ENDPROC(psci_cpu_off)
ENDPROC(psci_cpu_suspend)
ENDPROC(psci_version)
.weak psci_version
.weak psci_cpu_suspend
.weak psci_cpu_off
.weak psci_cpu_on
.weak psci_affinity_info
.weak psci_migrate
.weak psci_migrate_info_type
.weak psci_migrate_info_up_cpu
.weak psci_system_off
.weak psci_system_reset
.weak psci_features
.weak psci_cpu_freeze
.weak psci_cpu_default_suspend
.weak psci_node_hw_state
.weak psci_system_suspend
.weak psci_set_suspend_mode
.weak psi_stat_residency
.weak psci_stat_count
_psci_table:
.word ARM_PSCI_FN_CPU_SUSPEND
@ -70,6 +112,42 @@ _psci_table:
.word psci_cpu_on
.word ARM_PSCI_FN_MIGRATE
.word psci_migrate
.word ARM_PSCI_0_2_FN_PSCI_VERSION
.word psci_version
.word ARM_PSCI_0_2_FN_CPU_SUSPEND
.word psci_cpu_suspend
.word ARM_PSCI_0_2_FN_CPU_OFF
.word psci_cpu_off
.word ARM_PSCI_0_2_FN_CPU_ON
.word psci_cpu_on
.word ARM_PSCI_0_2_FN_AFFINITY_INFO
.word psci_affinity_info
.word ARM_PSCI_0_2_FN_MIGRATE
.word psci_migrate
.word ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE
.word psci_migrate_info_type
.word ARM_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU
.word psci_migrate_info_up_cpu
.word ARM_PSCI_0_2_FN_SYSTEM_OFF
.word psci_system_off
.word ARM_PSCI_0_2_FN_SYSTEM_RESET
.word psci_system_reset
.word ARM_PSCI_1_0_FN_PSCI_FEATURES
.word psci_features
.word ARM_PSCI_1_0_FN_CPU_FREEZE
.word psci_cpu_freeze
.word ARM_PSCI_1_0_FN_CPU_DEFAULT_SUSPEND
.word psci_cpu_default_suspend
.word ARM_PSCI_1_0_FN_NODE_HW_STATE
.word psci_node_hw_state
.word ARM_PSCI_1_0_FN_SYSTEM_SUSPEND
.word psci_system_suspend
.word ARM_PSCI_1_0_FN_SET_SUSPEND_MODE
.word psci_set_suspend_mode
.word ARM_PSCI_1_0_FN_STAT_RESIDENCY
.word psi_stat_residency
.word ARM_PSCI_1_0_FN_STAT_COUNT
.word psci_stat_count
.word 0
.word 0

16
arch/arm/include/asm/psci.h
View File

@ -31,6 +31,12 @@
#define ARM_PSCI_RET_NI (-1)
#define ARM_PSCI_RET_INVAL (-2)
#define ARM_PSCI_RET_DENIED (-3)
#define ARM_PSCI_RET_ALREADY_ON (-4)
#define ARM_PSCI_RET_ON_PENDING (-5)
#define ARM_PSCI_RET_INTERNAL_FAILURE (-6)
#define ARM_PSCI_RET_NOT_PRESENT (-7)
#define ARM_PSCI_RET_DISABLED (-8)
#define ARM_PSCI_RET_INVALID_ADDRESS (-9)
/* PSCI 0.2 interface */
#define ARM_PSCI_0_2_FN_BASE 0x84000000
@ -47,6 +53,16 @@
#define ARM_PSCI_0_2_FN_SYSTEM_OFF ARM_PSCI_0_2_FN(8)
#define ARM_PSCI_0_2_FN_SYSTEM_RESET ARM_PSCI_0_2_FN(9)
/* PSCI 1.0 interface */
#define ARM_PSCI_1_0_FN_PSCI_FEATURES ARM_PSCI_0_2_FN(10)
#define ARM_PSCI_1_0_FN_CPU_FREEZE ARM_PSCI_0_2_FN(11)
#define ARM_PSCI_1_0_FN_CPU_DEFAULT_SUSPEND ARM_PSCI_0_2_FN(12)
#define ARM_PSCI_1_0_FN_NODE_HW_STATE ARM_PSCI_0_2_FN(13)
#define ARM_PSCI_1_0_FN_SYSTEM_SUSPEND ARM_PSCI_0_2_FN(14)
#define ARM_PSCI_1_0_FN_SET_SUSPEND_MODE ARM_PSCI_0_2_FN(15)
#define ARM_PSCI_1_0_FN_STAT_RESIDENCY ARM_PSCI_0_2_FN(16)
#define ARM_PSCI_1_0_FN_STAT_COUNT ARM_PSCI_0_2_FN(17)
/* 1KB stack per core */
#define ARM_PSCI_STACK_SHIFT 10
#define ARM_PSCI_STACK_SIZE (1 << ARM_PSCI_STACK_SHIFT)