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We want the level-1 page table fixup code to run with hw IRQs off upon
data/instruction aborts only when handling minor faults over valid
kernel mappings, all the rest may run with IRQs on.

To reduce #ifdefery noise.

We don't support context tracking when the pipeline is enabled.

Don Mahurin authored Sep 17, 2015 and Philippe Gerum committed Feb 28, 2016

__this_cpu_ptr equivilant is raw_cpu_ptr, not this_cpu_ptr.
Restore need_resched check in arch_cpu_idle.
Remove unused __ipipe_stall_root function.

Jorge Ramirez-Ortiz authored Aug 26, 2015 and Philippe Gerum committed Feb 28, 2016

( merge of 3.18.20 port changes from "introduce arm64 support". -dm )

Don Mahurin authored Jul 20, 2015 and Philippe Gerum committed Feb 28, 2016

For this arm64 implementation, __ipipe_hrclock_freq is
__ipipe_hrtimer_freq, and 'ipipe_select_timers' requires
__ipipe_hrclock_freq to be set before __ipipe_hrtimer_freq is
initialized

Don Mahurin authored May 11, 2015 and Philippe Gerum committed Feb 28, 2016

remove conditional aeabi/oabi code which does not apply to armv8/arm64

Don Mahurin authored Apr 03, 2015 and Philippe Gerum committed Feb 28, 2016

arm64/ipipe: stub functions for __ipipe_tsc_register, __ipipe_tsc_update, __ipipe_mach_update_tsc, __ipipe_mach_get_tscinfo

Gilles Chanteperdrix authored Sep 29, 2015 and Philippe Gerum committed Feb 28, 2016

On some platforms (notably some AT91), the tsc may come late in the boot
process. Get the I-pipe tracer to also work in that case. Also get panic
traces working without a tsc; in that case, print all timestamps
differences as zero.

Mark W. Tyler authored Jul 24, 2015 and Philippe Gerum committed Feb 28, 2016

Signed-off-by: Mark W. Tyler <mark@mperpetuo.com>