diff options
| author | Soby Mathew <soby.mathew@arm.com> | 2015-01-07 11:10:22 +0000 |
|---|---|---|
| committer | Dan Handley <dan.handley@arm.com> | 2015-01-26 12:42:45 +0000 |
| commit | 90e8258eec95bcad556426597489a34208232e39 (patch) | |
| tree | 6dbd2e17c713c92cee5596be16d659cfd249c355 /services/std_svc/psci/psci_setup.c | |
| parent | 8991eed7439cb565da505a2bf88e9ac87ad79c1c (diff) | |
Implement PSCI_FEATURES API
This patch implements the PSCI_FEATURES function which is a mandatory
API in the PSCI 1.0 specification. A capability variable is
constructed during initialization by examining the plat_pm_ops and
spd_pm_ops exported by the platform and the Secure Payload Dispatcher.
This is used by the PSCI FEATURES function to determine which
PSCI APIs are supported by the platform.
Change-Id: I147ffc1bd5d90b469bd3cc4bbe0a20e95c247df7
Diffstat (limited to 'services/std_svc/psci/psci_setup.c')
| -rw-r--r-- | services/std_svc/psci/psci_setup.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/services/std_svc/psci/psci_setup.c b/services/std_svc/psci/psci_setup.c index be504e81..02a87865 100644 --- a/services/std_svc/psci/psci_setup.c +++ b/services/std_svc/psci/psci_setup.c @@ -57,6 +57,12 @@ static cpu_context_t psci_ns_context[PLATFORM_CORE_COUNT]; ******************************************************************************/ static aff_limits_node_t psci_aff_limits[MPIDR_MAX_AFFLVL + 1]; +/****************************************************************************** + * Define the psci capability variable. + *****************************************************************************/ +uint32_t psci_caps; + + /******************************************************************************* * Routines for retrieving the node corresponding to an affinity level instance * in the mpidr. The first one uses binary search to find the node corresponding @@ -372,5 +378,19 @@ int32_t psci_setup(void) platform_setup_pm(&psci_plat_pm_ops); assert(psci_plat_pm_ops); + /* Initialize the psci capability */ + psci_caps = PSCI_GENERIC_CAP; + + if (psci_plat_pm_ops->affinst_off) + psci_caps |= define_psci_cap(PSCI_CPU_OFF); + if (psci_plat_pm_ops->affinst_on && psci_plat_pm_ops->affinst_on_finish) + psci_caps |= define_psci_cap(PSCI_CPU_ON_AARCH64); + if (psci_plat_pm_ops->affinst_suspend && psci_plat_pm_ops->affinst_suspend_finish) + psci_caps |= define_psci_cap(PSCI_CPU_SUSPEND_AARCH64); + if (psci_plat_pm_ops->system_off) + psci_caps |= define_psci_cap(PSCI_SYSTEM_OFF); + if (psci_plat_pm_ops->system_reset) + psci_caps |= define_psci_cap(PSCI_SYSTEM_RESET); + return 0; } |