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authordp-arm <dimitris.papastamos@arm.com>2017-04-11 11:48:49 +0100
committerdp-arm <dimitris.papastamos@arm.com>2017-04-20 15:05:21 +0100
commit0498343ac0d0b03c0389ce358bcb2f17096949dd (patch)
tree30cb7cd10deefce1b2d2e2eb106123ea1938101a /drivers/arm/ccn/ccn.c
parent3d21c9452d4d5e17f545848bc4641274cdd6aa26 (diff)
css: Ensure PSCI system off/reset is not interrupted
If there is a pending interrupt, it is possible for the AP to come out of the final WFI before SCP has a chance to act on it. Prevent this by disabling the GIC CPU interface before issuing a WFI. Previously, SCP would not wait on WFI before taking an action but would shut down the core or system regardless. Change-Id: Ib0bcf69a515d540ed4f73c11e40ec7c863e39c92 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
Diffstat (limited to 'drivers/arm/ccn/ccn.c')
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