tree d188c47e058abc201f15c5aad599a0f5eae26ec8
parent 971858154711e24732d2ed75acce440e75e8a569
author Jamie Fox <jamie.fox@arm.com> 1701106057 +0000
committer David Hu <david.hu@arm.com> 1702005998 +0100

Test: Allow CPU to enter low-power mode after tests

Changes the test thread functions to exit at the end instead of busy
looping. Changes the CMSIS idle thread to call WFE instead of busy
waiting. In combination, this allows the CPU to enter the idle thread
and then go into low power state once the tests finish.

As well as reducing power on real HW, this significantly improves FVP
performance where multiple CPUs are being simulated, since time is not
wasted simulating an idle CPU.

Change-Id: I405013b31deb211aba3e965a83550abef47bb8fd
Signed-off-by: Jamie Fox <jamie.fox@arm.com>