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| author |   Ulf Hansson <ulf.hansson@linaro.org> | 2019-10-10 12:01:48 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-01-02 16:49:59 +0100 |
| commit | 49fdcd7577efe9efe863cdbb154f32a96970c1bc (patch) | |
| tree | 326ecc6f8d698f2e1006777b0def4f41377f4cc1 /include/linux/psci.h | |
| parent | dt: psci: Update DT bindings to support hierarchical PSCI states (diff) | |
| download | wireguard-linux-49fdcd7577efe9efe863cdbb154f32a96970c1bc.tar.xz wireguard-linux-49fdcd7577efe9efe863cdbb154f32a96970c1bc.zip | |
firmware: psci: Export functions to manage the OSI mode
To allow subsequent changes to implement support for OSI mode through the
cpuidle-psci driver, export the existing psci_has_osi_support(). Export
also a new function, psci_set_osi_mode(), that allows its caller to enable
the OS-initiated CPU-suspend mode in the PSCI FW.
To deal with backwards compatibility for a kernel started through a kexec
call, default to set the CPU-suspend mode to the Platform Coordinated mode
during boot.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'include/linux/psci.h')
| -rw-r--r-- | include/linux/psci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/psci.h b/include/linux/psci.h index ebe0a881d13d..a67712b73b6c 100644 --- a/include/linux/psci.h +++ b/include/linux/psci.h @@ -18,6 +18,8 @@ bool psci_tos_resident_on(int cpu); int psci_cpu_suspend_enter(u32 state); bool psci_power_state_is_valid(u32 state); +int psci_set_osi_mode(void); +bool psci_has_osi_support(void); enum smccc_version { SMCCC_VERSION_1_0, |