Date: Tue, 26 Aug 1997 11:10:38 -0700 (PDT) From: Peter Wemm <peter@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG Subject: cvs commit: src/sys/conf files src/sys/i386/i386 locore.s machdep.c mp_machdep.c mpboot.s mplock.s pmap.c swtch.s trap.c vm_machdep.c src/sys/i386/include smp.h src/sys/kern init_main.c init_smp.c Message-ID: <199708261810.LAA25322@freefall.freebsd.org>
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peter 1997/08/26 11:10:38 PDT Modified files: sys/conf files sys/i386/i386 locore.s machdep.c mp_machdep.c mpboot.s mplock.s pmap.c swtch.s trap.c vm_machdep.c sys/i386/include smp.h sys/kern init_main.c Removed files: sys/kern init_smp.c Log: Clean up the SMP AP bootstrap and eliminate the wretched idle procs. - We now have enough per-cpu idle context, the real idle loop has been revived (cpu's halt now with nothing to do). - Some preliminary support for running some operations outside the global lock (eg: zeroing "free but not yet zeroed pages") is present but appears to cause problems. Off by default. - the smp_active sysctl now behaves differently. It's merely a 'true/false' option. Setting smp_active to zero causes the AP's to halt in the idle loop and stop scheduling processes. - bootstrap is a lot safer. Instead of sharing a statically compiled in stack a number of times (which has caused lots of problems) and then abandoning it, we use the idle context to boot the AP's directly. This should help >2 cpu support since the bootlock stuff was in doubt. - print physical apic id in traps.. helps identify private pages getting out of sync. (You don't want to know how much hair I tore out with this!) More cleanup to follow, this is more of a checkpoint than a 'finished' thing. Revision Changes Path 1.111 +0 -1 src/sys/conf/files 1.96 +24 -12 src/sys/i386/i386/locore.s 1.258 +7 -7 src/sys/i386/i386/machdep.c 1.46 +142 -36 src/sys/i386/i386/mp_machdep.c 1.4 +10 -41 src/sys/i386/i386/mpboot.s 1.21 +21 -1 src/sys/i386/i386/mplock.s 1.160 +60 -5 src/sys/i386/i386/pmap.c 1.60 +98 -15 src/sys/i386/i386/swtch.s 1.108 +6 -1 src/sys/i386/i386/trap.c 1.86 +13 -1 src/sys/i386/i386/vm_machdep.c 1.30 +1 -2 src/sys/i386/include/smp.h 1.70 +1 -7 src/sys/kern/init_main.c
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