From d5f130930624ceb95cde40de999a880aa2b00493 Mon Sep 17 00:00:00 2001 From: Juan Castillo Date: Tue, 12 Aug 2014 11:17:06 +0100 Subject: Add support for PSCI SYSTEM_OFF and SYSTEM_RESET APIs This patch adds support for SYSTEM_OFF and SYSTEM_RESET PSCI operations. A platform should export handlers to complete the requested operation. The FVP port exports fvp_system_off() and fvp_system_reset() as an example. If the SPD provides a power management hook for system off and system reset, then the SPD is notified about the corresponding operation so it can do some bookkeeping. The TSPD exports tspd_system_off() and tspd_system_reset() for that purpose. Versatile Express shutdown and reset methods have been removed from the FDT as new PSCI sys_poweroff and sys_reset services have been added. For those kernels that do not support yet these PSCI services (i.e. GICv3 kernel), the original dtsi files have been renamed to *-no_psci.dtsi. Fixes ARM-software/tf-issues#218 Change-Id: Ic8a3bf801db979099ab7029162af041c4e8330c8 --- services/std_svc/psci/psci_common.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'services/std_svc/psci/psci_common.c') diff --git a/services/std_svc/psci/psci_common.c b/services/std_svc/psci/psci_common.c index 56f3daf2..2fd1764c 100644 --- a/services/std_svc/psci/psci_common.c +++ b/services/std_svc/psci/psci_common.c @@ -446,3 +446,33 @@ void psci_register_spd_pm_hook(const spd_pm_ops_t *pm) { psci_spd_pm = pm; } + +/******************************************************************************* + * This function prints the state of all affinity instances present in the + * system + ******************************************************************************/ +void psci_print_affinity_map(void) +{ +#if LOG_LEVEL >= LOG_LEVEL_INFO + aff_map_node_t *node; + unsigned int idx; + /* This array maps to the PSCI_STATE_X definitions in psci.h */ + static const char *psci_state_str[] = { + "ON", + "OFF", + "ON_PENDING", + "SUSPEND" + }; + + INFO("PSCI Affinity Map:\n"); + for (idx = 0; idx < PSCI_NUM_AFFS ; idx++) { + node = &psci_aff_map[idx]; + if (!(node->state & PSCI_AFF_PRESENT)) { + continue; + } + INFO(" AffInst: Level %u, MPID 0x%lx, State %s\n", + node->level, node->mpidr, + psci_state_str[psci_get_state(node)]); + } +#endif +} -- cgit