wireguard-openbsd/sys/arch/powerpc/include/lock.h, branch jd/queueboosts WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/sys/arch/powerpc/include/lock.h?h=jd%2Fqueueboosts 2017-05-29T14:19:49Z Kill SPINLOCK_SPIN_HOOK, use CPU_BUSY_CYCLE() instead. 2017-05-29T14:19:49Z mpi mpi@openbsd.org 2017-05-29T14:19:49Z urn:sha1:275e6a2f73daf87c4fca2936430979b529d958cc ok visa@, kettenis@ replace the asm mutexes with a c implementation. 2015-08-14T06:14:19Z dlg dlg@openbsd.org 2015-08-14T06:14:19Z urn:sha1:992d1078c7384dbbd82e210f5056b595446802c9 there's no real functional advantage to this, except that it will make it easier to add deadlock detection to the code. this is modelled on the c mutex implementation thats on alpha, mips64, and hppa. ok mpi@ kettenis@ remove __cpu_cas and use atomic_cas_ulong instead. 2015-06-26T12:46:13Z dlg dlg@openbsd.org 2015-06-26T12:46:13Z urn:sha1:b33b82d924e1f3c0644506417059458844749a67 ok mpi@ 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@ 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 First pass at removing clauses 3 and 4 from NetBSD licenses. 2008-06-26T05:42:03Z ray ray@openbsd.org 2008-06-26T05:42:03Z urn:sha1:d874cce4b1d9fe6b41c9e4f2117a77d8a4a37b92 Not sure what's more surprising: how long it took for NetBSD to catch up to the rest of the BSDs (including UCB), or the amount of code that NetBSD has claimed for itself without attributing to the actual authors. OK deraadt@ implement rw_cas, "go for it" miod@ 2008-05-02T22:00:07Z drahn drahn@openbsd.org 2008-05-02T22:00:07Z urn:sha1:70081897a328c21dedf0483adab737511731d590 Move macppc to __HAVE_CPUINFO, and make locore.S and trap.c suitable for 2007-03-20T20:59:53Z kettenis kettenis@openbsd.org 2007-03-20T20:59:53Z urn:sha1:9e61e18aeda43994e7b2db33da089fb74baedd80 MULTIPROCESSOR. From now on sprg0 holds a pointer to struct cpuinfo, which is used to spill registers to during trap instead of the globals we used to use for that purpose. Bits and pieces from NetBSD. Help from drahn@ and art@. Tested by xsa@, thib@, miod@, gwk@, deraadt@. ok drahn@, gwk@