wireguard-openbsd/sys/arch/mips64/include/lock.h, branch jd/queueboosts WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/sys/arch/mips64/include/lock.h?h=jd%2Fqueueboosts 2017-05-19T00:52:49Z Replace __cpu_cas() with atomic_cas_ulong(). 2017-05-19T00:52:49Z visa visa@openbsd.org 2017-05-19T00:52:49Z urn:sha1:b053005b0eb2b27b62a4b5fd8f8ed4a551423f75 OK kettenis@ make the rwlock implementation MI. 2015-02-11T00:14:11Z dlg dlg@openbsd.org 2015-02-11T00:14:11Z urn:sha1:c7ee61963c3a9af7911e1d06422068d4e15ba0c0 each arch used to have to provide an rw_cas operation, but now we have the rwlock code build its own version. on smp machines it uses atomic_cas_ulong. on uniproc machines it avoids interlocked instructions by using straight loads and stores. this is safe because rwlocks are only used from process context and processes are currently not preemptible in our kernel. so alpha/ppc/etc might get a benefit. ok miod@ kettenis@ deraadt@ implement atomic operations using ll/sc, and convert rw_cas and callers of the 2014-09-30T06:51:58Z jmatthew jmatthew@openbsd.org 2014-09-30T06:51:58Z urn:sha1:1b2dfb44f6d93f367a7d71404fb0b44c6414717a pre-existing atomics to match. tested on sgi (octane) and octeon (erl) ok miod@ dlg@ remove unused cpu_lock code (where it is truly unused). it is not 2013-05-21T20:05:30Z tedu tedu@openbsd.org 2013-05-21T20:05:30Z urn:sha1:dc809bae3e7cea798d871006a9d0888b9a712566 part of the future we have planned. middling ok from a few more cleanup to cope with the change that tries to make proc.h not act 2010-04-21T03:03:24Z deraadt deraadt@openbsd.org 2010-04-21T03:03:24Z urn:sha1:3f1243dcb5f169983fc76cdd343a9a4878166556 like it is everything.h ok tedu mplock, rw_cas implemented 2009-11-21T23:28:14Z syuu syuu@openbsd.org 2009-11-21T23:28:14Z urn:sha1:874e9ff85bff32851904cc2eb0357a906025a875 ok miod@ cpu status flag, cpuid added to cpu_info. 2009-09-15T04:54:31Z syuu syuu@openbsd.org 2009-09-15T04:54:31Z urn:sha1:9117996a716d65f83176337c1122cd7e42718a99 cpu_info pointer array, cpu_info iterator, cpu_number() implementation added. constraint modifier fixed in lock.h to output correct assembly. calling proc_trampoline_mp in exception.S. Provide <machine/lock.h> on all platforms, so that MI code may #include it 2007-05-01T18:56:27Z miod miod@openbsd.org 2007-05-01T18:56:27Z urn:sha1:c3d82f71f72c9db0260420e22a4991f3d0a4fe04 unconditionnaly.