freebsd-nq/sys/powerpc
Nathan Whitehorn bc96dccc69 Fix final bugs in memory barriers on PowerPC:
- Use isync/lwsync unconditionally for acquire/release. Use of isync
  guarantees a complete memory barrier, which is important for serialization
  of bus space accesses with mutexes on multi-processor systems.
- Go back to using sync as the I/O memory barrier, which solves the same
  problem as above with respect to mutex release using lwsync, while not
  penalizing non-I/O operations like a return to sync on the atomic release
  operations would.
- Place an acquisition barrier around thread lock acquisition in
  cpu_switchin().
2012-05-04 16:00:22 +00:00
..
aim Fix final bugs in memory barriers on PowerPC: 2012-05-04 16:00:22 +00:00
booke Finally, try to enable the nxstacks on amd64 and powerpc64 for both 64bit 2012-01-30 07:56:00 +00:00
compile
conf Remove pty(4) from our kernel configurations. 2012-03-21 08:38:42 +00:00
cpufreq Remove unused variables. Spotted by a cppcheck 2011-01-06 20:19:01 +00:00
fpu Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
include Fix final bugs in memory barriers on PowerPC: 2012-05-04 16:00:22 +00:00
mambo kern cons: introduce infrastructure for console grabbing by kernel 2011-12-17 15:08:43 +00:00
mpc85xx Fix missing header for powerpc_iomb(). 2012-04-23 15:47:07 +00:00
ofw Make ofw_bus_get_node() consistently return -1 when there is no associated 2012-03-15 22:53:39 +00:00
powermac Provide a fix for certain PowerMacs where the U3 i2c lacks the interrupt 2012-03-19 18:03:20 +00:00
powerpc Remove dead code. The routines in atomic.S did not work properly anyway, and 2012-04-22 18:56:56 +00:00
ps3 - Change contigmalloc() to use the vm_paddr_t type instead of an unsigned 2012-03-01 19:58:34 +00:00
psim Fix the interrupt code, broken 7 months ago. The interrupt framework 2011-01-29 20:58:38 +00:00