x86, gart: Make sure GART does not map physmem above 1TB
The GART can only map physical memory below 1TB. Make sure the gart driver in the kernel does not try to map memory above 1TB. Cc: <stable@kernel.org> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Link: http://lkml.kernel.org/r/1303134346-5805-5-git-send-email-joerg.roedel@amd.comSigned-off-by: H. Peter Anvin <hpa@zytor.com>
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