Currently, the Driver Synchronization Core (DSC) blocks transitions
up-tree and down-tree from a node currently undergoing a transition, but
only rejects operations down-tree from the current node. Instead, reject
new operations both up-tree and down-tree from the current node under
transition. This provides more forgiving safety guarantees to operation
implementations at the cost of a reduced amount of parallelism that can
be achieved.
Change-Id: I09e1c48f7030a2252380d172c1c00ee22eac39c5
CRs-Fixed: 2421786
The Driver Synchronization Core (DSC) is a set of synchronization
primitives for use by the driver's orchestration layer. It provides APIs
for ensuring safe state transitions (including bring up and tear down)
of major driver objects: a single driver, associated psocs, and their
associated vdevs.
APIs are divided into two categories: mutual exclusion of conflicting
transitions, and operation tracking, blocking, and waiting capabilities.
For part 1, add common infrastructure and headers.
Change-Id: Id290e66d2dccd28b89fed5f285d3692ff3c814e7
CRs-Fixed: 2290260
