boot state: run timers on state entry

When TIMER_QUEUE is configured on call the timer callbacks on
entry into a state but before its entry callbacks. In addition
provide a barrier to the following states so that timers are drained
before proceeding. This allows for blocking state traversal for key
components of boot.
	BS_OS_RESUME
	BS_WRITE_TABLES
	BS_PAYLOAD_LOAD
	BS_PAYLOAD_BOOT

Future functionality consists of evaluating the timer callbacks within
the device tree. One example is dev_initialize() as that seems state
seems to take 90% of the boot time. The timer callbacks could then be
ran in a more granular manner.

Change-Id: Idb549ea17c5ec38eb57b4f6f366a1c2183f4a6dd
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3159
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

0 files changed, 0 insertions, 0 deletions