tree 934d39529b67d798867e252b039f4f8fcae74a67
parent 447b89df988882534e9863358e9e7da6637308d5
author Jeenu Viswambharan <jeenu.viswambharan@arm.com> 1506065529 +0100
committer Jeenu Viswambharan <jeenu.viswambharan@arm.com> 1508169001 +0100

GIC: Add APIs to set interrupt type and query support

The back end GIC driver converts and assigns the interrupt type to
suitable group.

For GICv2, a build option GICV2_G0_FOR_EL3 is introduced, which
determines to which type Group 0 interrupts maps to.

 - When the build option is set 0 (the default), Group 0 interrupts are
   meant for Secure EL1. This is presently the case.

 - Otherwise, Group 0 interrupts are meant for EL3. This means the SPD
   will have to synchronously hand over the interrupt to Secure EL1.

The query API allows the platform to query whether the platform supports
interrupts of a given type.

API documentation updated.

Change-Id: I60fdb4053ffe0bd006b3b20914914ebd311fc858
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>