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 /include/bl31/services/psci.h | |
| 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 'include/bl31/services/psci.h')
| -rw-r--r-- | include/bl31/services/psci.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/bl31/services/psci.h b/include/bl31/services/psci.h index de6fe4b8..59675810 100644 --- a/include/bl31/services/psci.h +++ b/include/bl31/services/psci.h @@ -61,11 +61,15 @@ #define PSCI_MIG_INFO_UP_CPU_AARCH64 0xc4000007 #define PSCI_SYSTEM_OFF 0x84000008 #define PSCI_SYSTEM_RESET 0x84000009 +#define PSCI_FEATURES 0x8400000A + +/* Macro to help build the psci capabilities bitfield */ +#define define_psci_cap(x) (1 << (x & 0x1f)) /* * Number of PSCI calls (above) implemented */ -#define PSCI_NUM_CALLS 15 +#define PSCI_NUM_CALLS 16 /******************************************************************************* * PSCI Migrate and friends @@ -97,6 +101,18 @@ PSTATE_AFF_LVL_MASK) /******************************************************************************* + * PSCI CPU_FEATURES feature flag specific defines + ******************************************************************************/ +/* Features flags for CPU SUSPEND power state parameter format. Bits [1:1] */ +#define FF_PSTATE_SHIFT 1 +#define FF_PSTATE_ORIG 0 +#define FF_PSTATE_EXTENDED 1 + +/* Features flags for CPU SUSPEND OS Initiated mode support. Bits [0:0] */ +#define FF_MODE_SUPPORT_SHIFT 0 +#define FF_SUPPORTS_OS_INIT_MODE 1 + +/******************************************************************************* * PSCI version ******************************************************************************/ #define PSCI_MAJOR_VER (0 << 16) |