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| author | Ulf Hansson | 2019-04-10 10:20:25 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki | 2019-04-12 10:59:37 +0200 |
| commit | 60dd1ead65e83268af9ccd19b97c7011cb50186b (patch) | |
| tree | 359597d1b83227b0d019dd3fc4e3ebbac8aae589 /include/uapi/linux/psci.h | |
| parent | drivers: firmware: psci: Simplify error path of psci_dt_init() (diff) | |
| download | kernel-qcow2-linux-60dd1ead65e83268af9ccd19b97c7011cb50186b.tar.gz kernel-qcow2-linux-60dd1ead65e83268af9ccd19b97c7011cb50186b.tar.xz kernel-qcow2-linux-60dd1ead65e83268af9ccd19b97c7011cb50186b.zip | |
drivers: firmware: psci: Announce support for OS initiated suspend mode
PSCI firmware v1.0+, supports two different modes for CPU_SUSPEND.
The Platform Coordinated mode, which is the default and mandatory
mode, while support for the OS initiated (OSI) mode is optional.
In some cases it's interesting for the user/developer to know if
the OSI mode is supported by the PSCI FW, so print a message to
the log if that is the case.
Co-developed-by: Lina Iyer <lina.iyer@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/uapi/linux/psci.h')
| -rw-r--r-- | include/uapi/linux/psci.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h index b3bcabe380da..581f72085c33 100644 --- a/include/uapi/linux/psci.h +++ b/include/uapi/linux/psci.h @@ -49,6 +49,7 @@ #define PSCI_1_0_FN_PSCI_FEATURES PSCI_0_2_FN(10) #define PSCI_1_0_FN_SYSTEM_SUSPEND PSCI_0_2_FN(14) +#define PSCI_1_0_FN_SET_SUSPEND_MODE PSCI_0_2_FN(15) #define PSCI_1_0_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14) @@ -97,6 +98,10 @@ #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_MASK \ (0x1 << PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT) +#define PSCI_1_0_OS_INITIATED BIT(0) +#define PSCI_1_0_SUSPEND_MODE_PC 0 +#define PSCI_1_0_SUSPEND_MODE_OSI 1 + /* PSCI return values (inclusive of all PSCI versions) */ #define PSCI_RET_SUCCESS 0 #define PSCI_RET_NOT_SUPPORTED -1 |