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Xianzhong
1c51416fa58
Xianzhong committed c9d7b66f0e8
ENGR00274782 fixed gpu crash when baseAddress is not 0 or 2G

The baseAddress of contiguousVidMem is the actual physical address
which is not subtracted by gpu baseAddress, but the allocated physical address
has been subtracted by gpu baseAddress in gckVIDMEM_Lock,
so the invalid offset is produced and used to calculate the logical address.

Signed-off-by: Xianzhong <b07117@freescale.com>
Acked-by: Shawn Guo