tree 765f2c757d123cf6c63157cb9d2972008a7773c0
parent bc912823eb3806fef71bc87a67b6ef68287e0170
author Soby Mathew <soby.mathew@arm.com> 1441301378 +0100
committer Soby Mathew <soby.mathew@arm.com> 1449230532 +0000

Enable use of FIQs and IRQs as TSP interrupts

On a GICv2 system, interrupts that should be handled in the secure world are
typically signalled as FIQs. On a GICv3 system, these interrupts are signalled
as IRQs instead. The mechanism for handling both types of interrupts is the same
in both cases. This patch enables the TSP to run on a GICv3 system by:

1. adding support for handling IRQs in the exception handling code.
2. removing use of "fiq" in the names of data structures, macros and functions.

The build option TSPD_ROUTE_IRQ_TO_EL3 is deprecated and is replaced with a
new build flag TSP_NS_INTR_ASYNC_PREEMPT. For compatibility reasons, if the
former build flag is defined, it will be used to define the value for the
new build flag. The documentation is also updated accordingly.

Change-Id: I1807d371f41c3656322dd259340a57649833065e