History log of /rk3399_ARM-atf/docs/design_documents/psci_osi_mode.rst (Results 1 – 4 of 4)
Revision Date Author Comments
# f4d011b0 12-Jun-2023 Manish Pandey <manish.pandey2@arm.com>

Merge changes from topic "psci-osi" into integration

* changes:
fix(psci): add optional pwr_domain_validate_suspend to plat_psci_ops_t
fix(sc7280): update pwr_domain_suspend
fix(fvp): update p

Merge changes from topic "psci-osi" into integration

* changes:
fix(psci): add optional pwr_domain_validate_suspend to plat_psci_ops_t
fix(sc7280): update pwr_domain_suspend
fix(fvp): update pwr_domain_suspend

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# d3488614 04-May-2023 Wing Li <wingers@google.com>

fix(psci): add optional pwr_domain_validate_suspend to plat_psci_ops_t

This patch adds a new optional member `pwr_domain_validate_suspend` to
the `plat_psci_ops_t` structure that allows a platform t

fix(psci): add optional pwr_domain_validate_suspend to plat_psci_ops_t

This patch adds a new optional member `pwr_domain_validate_suspend` to
the `plat_psci_ops_t` structure that allows a platform to optionally
perform platform specific validations in OS-initiated mode. This is
conditionally compiled into the build depending on the value of the
`PSCI_OS_INIT_MODE` build option.

In https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/17682,
the return type of the `pwr_domain_suspend` handler was updated from
`void` to `int` to allow a platform to optionally perform platform
specific validations in OS-initiated mode. However, when an error code
other than `PSCI_E_SUCCESS` is returned, the current exit path does not
undo the operations in `psci_suspend_to_pwrdown_start`, and as a result,
the system ends up in an unexpected state.

The fix in this patch prevents the need to undo the operations in
`psci_suspend_to_pwrdown_start`, by allowing the platform to first
perform any necessary platform specific validations before the PSCI
generic code proceeds to the point of no return where the CPU_SUSPEND
request is expected to complete successfully.

Change-Id: I05d92c7ea3f5364da09af630d44d78252185db20
Signed-off-by: Wing Li <wingers@google.com>

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# 92e93253 28-Mar-2023 Manish Pandey <manish.pandey2@arm.com>

Merge changes from topic "psci-osi" into integration

* changes:
feat(sc7280): add support for PSCI_OS_INIT_MODE
feat(fvp): enable support for PSCI OS-initiated mode
feat(psci): update PSCI_FEA

Merge changes from topic "psci-osi" into integration

* changes:
feat(sc7280): add support for PSCI_OS_INIT_MODE
feat(fvp): enable support for PSCI OS-initiated mode
feat(psci): update PSCI_FEATURES
feat(psci): add support for OS-initiated mode
feat(psci): add support for PSCI_SET_SUSPEND_MODE
build(psci): add build option for OS-initiated mode
docs(psci): add design proposal for OS-initiated mode

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# e706d7ff 21-Nov-2022 Wing Li <wingers@google.com>

docs(psci): add design proposal for OS-initiated mode

Change-Id: Ia3662e08d98d01a93951309835816969e1602624
Signed-off-by: Wing Li <wingers@google.com>