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authorAndi Kleen <ak@suse.de>2007-04-02 12:14:12 +0200
committerAndi Kleen <andi@basil.nowhere.org>2007-04-02 12:14:12 +0200
commit3556ddfa9284a86a59a9b78fe5894430f6ab4eef (patch)
treef85b5acde48b6ffa7f1c9abbb3ea2ff4a2e92b4b /arch/i386/kernel/module.c
parent2e175a90047a2dbc76fde169c990164895b25dfc (diff)
[PATCH] x86-64: Disable local APIC timer use on AMD systems with C1E
AMD dual core laptops with C1E do not run the APIC timer correctly when they go idle. Previously the code assumed this only happened on C2 or deeper. But not all of these systems report support C2. Use a AMD supplied snippet to detect C1E being enabled and then disable local apic timer use. This supercedes an earlier workaround using DMI detection of specific systems. Thanks to Mark Langsdorf for the detection snippet. Signed-off-by: Andi Kleen <ak@suse.de>
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