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reset2: Add PSCI system_reset2 function

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This patch implements PSCI_SYSTEM_RESET2 API as defined in PSCI
v1.1 specification. The specification allows architectural and
vendor-specific resets via this API. In the current specification,
there is only one architectural reset, the warm reset. This reset is
intended to provide a fast reboot path that guarantees not to reset
system main memory.

Change-Id: I057bb81a60cd0fe56465dbb5791d8e1cca025bd3
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
This commit is contained in:
Roberto Vargas 2017-07-26 09:23:09 +01:00
parent 4d415c11c4
commit 36a8f8fd47
5 changed files with 54 additions and 1 deletions
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4
lib/psci/psci_private.h
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@ -89,7 +89,8 @@
define_psci_cap(PSCI_NODE_HW_STATE_AARCH64) | \
define_psci_cap(PSCI_SYSTEM_SUSPEND_AARCH64) | \
define_psci_cap(PSCI_STAT_RESIDENCY_AARCH64) | \
define_psci_cap(PSCI_STAT_COUNT_AARCH64))
define_psci_cap(PSCI_STAT_COUNT_AARCH64) | \
define_psci_cap(PSCI_SYSTEM_RESET2_AARCH64))
/*
* Helper macros to get/set the fields of PSCI per-cpu data.
@ -258,6 +259,7 @@ void psci_do_pwrup_cache_maintenance(void);
/* Private exported functions from psci_system_off.c */
void __dead2 psci_system_off(void);
void __dead2 psci_system_reset(void);
int psci_system_reset2(uint32_t reset_type, u_register_t cookie);
/* Private exported functions from psci_stat.c */
void psci_stats_update_pwr_down(unsigned int end_pwrlvl,