Date: Wed, 31 Jan 2001 19:34:21 -0800 (PST) From: Jake Burkholder <jake@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/alpha/alpha interrupt.c machdep.c src/sys/i386/isa ithread.c npx.c Message-ID: <200102010334.f113YLm83039@freefall.freebsd.org>
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jake 2001/01/31 19:34:21 PST
Modified files:
sys/alpha/alpha interrupt.c machdep.c
sys/i386/isa ithread.c npx.c
Log:
Implement preemptive scheduling of hardware interrupt threads.
- If possible, context switch to the thread directly in sched_ithd(),
rather than triggering a delayed ast reschedule.
- Disable interrupts while restoring fpu state in the trap handler,
in order to ensure that we are not preempted in the middle, which
could cause migration to another cpu.
Reviewed by: peter
Tested by: peter (alpha)
Revision Changes Path
1.36 +13 -9 src/sys/alpha/alpha/interrupt.c
1.111 +16 -1 src/sys/alpha/alpha/machdep.c
1.11 +7 -3 src/sys/i386/isa/ithread.c
1.90 +6 -1 src/sys/i386/isa/npx.c
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