freebsd-skq/sys/sparc64
marius 6892c8a3be Revert the part of r239864 which removed obtaining the SMP mutex around
reading registers from other CPUs. As it turns out, the hardware doesn't
really like concurrent IPI'ing causing adverse effects. Also the thought
deadlock when using this spin lock here and the targeted CPU(s) are also
holding or in case of nested locks can't actually happen. This is due to
the fact that on sparc64, spinlock_enter() only raises the PIL but doesn't
disable interrupts completely. Thus direct cross calls as used for the
register reading (and all other MD IPI needs) still will be executed by
the targeted CPU(s) in that case.

MFC after:	3 days
2013-01-23 22:52:20 +00:00
..
central s,KOBJMETHOD_END,DEVMETHOD_END,g in order to fully hide the explicit mention 2011-11-22 21:55:40 +00:00
compile
conf Enable the UFS quotas for big-iron GENERIC kernels. 2013-01-03 19:03:41 +00:00
ebus s,KOBJMETHOD_END,DEVMETHOD_END,g in order to fully hide the explicit mention 2011-11-22 21:55:40 +00:00
fhc s,KOBJMETHOD_END,DEVMETHOD_END,g in order to fully hide the explicit mention 2011-11-22 21:55:40 +00:00
include Revert the part of r239864 which removed obtaining the SMP mutex around 2013-01-23 22:52:20 +00:00
isa MFC 2011-05-06 22:45:33 +00:00
pci Remove duplicate const specifiers in many drivers (I hope I got all of 2012-11-05 19:16:27 +00:00
sbus s,KOBJMETHOD_END,DEVMETHOD_END,g in order to fully hide the explicit mention 2011-11-22 21:55:40 +00:00
sparc64 Revert the part of r239864 which removed obtaining the SMP mutex around 2013-01-23 22:52:20 +00:00