Building of arch/arm/plat-mxc/ssi-fiq.S failed w/ THUMB2 enabled?

On Fri, Dec 02, 2011 at 01:39:11PM +0000, Dave Martin wrote:

Is this code still used on ARMv7 and above?  FIQ is not normally
available for Linux interrupts on hardware which makes use of the
TrustZone security extensions.  Plus, on modern hardware with a deep
memory hierarchy, FIQ is may not be all that "fast" either, due to
cache/TLB effects.

It's worth pointing out that people end up using FIQs for certain things
because the hardware requires you to do it.  So if a platform is using
them, they're probably not doing it out of choice, but are doing it
because it's a baseline requirement to get something working.