721d408cd1
In order to properly support more arm64 SoCs PSCI needs to handle the hierarchy of cpus/clusters within the SoC. The nodes within PSCI are kept in a tree as well as a depth-first ordered array of same tree. Additionally, the PSCI states are now maintained in a hierachal manner. OFF propogates up the tree as long as all siblings are set to OFF. ON propogates up the tree until a node is not already set to OFF. The SoC provides the operations for determining how many children are at a given affinity level. Lastly, the secmon startup has been reworked in that all non-BSP CPUs wait for instructions from the BSP. BUG=chrome-os-partner:32136 BRANCH=None TEST=Can still boot into kernel with SMP. Change-Id: I520a9726e283bee7edcb514cda28ec1eb31b5ea0 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/226480 Reviewed-by: Furquan Shaikh <furquan@chromium.org> |
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| arm | ||
| arm64 | ||
| mips | ||
| x86 | ||