| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | MIPS: PM: Implement PM helper macros | James Hogan | 2014-05-02 | 1 | -0/+4 |
| | | | | | | | | | | | | | | | Implement assembler helper macros in asm/pm.h for platform code to use for saving context across low power states - for example suspend to RAM or powered down cpuidle states. Macros are provided for saving and restoring the main CPU context used by C code and doing important configuration which must be done very early during resume. Notably EVA needs segmentation control registers to be restored before the stack or dynamically allocated memory is accessed, so that state is saved in global data. Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Paul Burton <paul.burton@imgtec.com> | ||||
| * | MIPS: PM: Add CPU PM callbacks for general CPU context | James Hogan | 2014-04-24 | 1 | -0/+95 |
| Add a CPU power management notifier callback for preserving general CPU context. The CPU PM callbacks will be triggered by the powering down of CPU cores, for example by cpuidle drivers & in the future by suspend to RAM implementations. The current state preserved is mostly related to the process context: - FPU - DSP - ASID - UserLocal - Watch registers Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Paul Burton <paul.burton@imgtec.com> | |||||
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index : op-kernel-dev | |
| Development kernel branch for OpenPOWER systems | Raptor Engineering, LLC |
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