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authorJoerg Roedel <joerg.roedel@amd.com>2011-04-15 14:47:40 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-04-22 08:44:20 -0700
commit8835b61c170b6747df2312804c4f8919ad2c90d0 (patch)
tree4499fc0decfdc2a39504c0fd7ecdf8b79311b533 /drivers/usb
parentd4274252d17368745a550db596607e7233cdc4d0 (diff)
downloadlinux-linaro-stable-8835b61c170b6747df2312804c4f8919ad2c90d0.tar.gz
x86, amd: Disable GartTlbWlkErr when BIOS forgets it
commit 5bbc097d890409d8eff4e3f1d26f11a9d6b7c07e upstream. This patch disables GartTlbWlk errors on AMD Fam10h CPUs if the BIOS forgets to do is (or is just too old). Letting these errors enabled can cause a sync-flood on the CPU causing a reboot. The AMD BKDG recommends disabling GART TLB Wlk Error completely. This patch is the fix for https://bugzilla.kernel.org/show_bug.cgi?id=33012 on my machine. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Link: http://lkml.kernel.org/r/20110415131152.GJ18463@8bytes.org Tested-by: Alexandre Demers <alexandre.f.demers@gmail.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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