tree bbd4a119d9123ac9389372d61efd1db09f77bc64
parent 73f929927dd0fac3a42a286f21ae292d28a3eb14
author Soby Mathew <soby.mathew@arm.com> 1452867657 +0000
committer Soby Mathew <soby.mathew@arm.com> 1455036636 +0000

Fix GIC_IPRIORITYR setting in new drivers

The code to set the interrupt priority for secure interrupts in the
new GICv2 and GICv3 drivers is incorrect. The setup code to configure
interrupt priorities of secure interrupts, one interrupt at a time, used
gicd_write_ipriorityr()/gicr_write_ipriority() function affecting
4 interrupts at a time. This bug did not manifest itself because all the
secure interrupts were configured to the highest secure priority(0) during
cold boot and the adjacent non secure interrupt priority would be configured
later by the normal world. This patch introduces new accessors,
gicd_set_ipriorityr() and gicr_set_ipriorityr(), for configuring priority
one interrupt at a time and fixes the the setup code to use the new
accessors.

Fixes ARM-software/tf-issues#344

Change-Id: I470fd74d2b7fce7058b55d83f604be05a27e1341