CVSROOT: /cvs
Module name: src
Changes by: j...@cvs.openbsd.org 2017/03/28 17:47:17
Modified files:
sys/arch/arm64/arm64: vfp.c
Log message:
Add an instruction synchronisation barrier instruction after changing
the vfp state via cpacr_el1. This matches the advice given in the
"Synchronization requirements for system registers" section of the ARMv8
ARM.
Without this an overdrive 1000 with A1120 (Cortex A57 r1p2) reliably
triggers "panic: VFP exception in the kernel" when init(8) is run.
ok drahn@ kettenis@
