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authorAndi Kleen <ak@suse.de>2007-08-10 22:31:07 +0200
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-08-11 15:58:13 -0700
commitd3f7eae182b04997be19343a23f7009170f4f7a5 (patch)
tree162fc610811c762b322eedaae909847ab4465da1 /Documentation
parentd2d0251f6faa2cf341500a44310bbaa815a8a972 (diff)
downloadlinux-linaro-d3f7eae182b04997be19343a23f7009170f4f7a5.tar.gz
i386: Use global flag to disable broken local apic timer on AMD CPUs.
The Averatec 2370 and some other Turion laptop BIOS seems to program the ENABLE_C1E MSR inconsistently between cores. This confuses the lapic use heuristics because when C1E is enabled anywhere it seems to affect the complete chip. Use a global flag instead of a per cpu flag to handle this. If any CPU has C1E enabled disabled lapic use. Thanks to Cal Peake for debugging. Cc: tglx@linutronix.de Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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