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Commit 873c38a4 authored by Tom Hromatka's avatar Tom Hromatka Committed by David S. Miller
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char: sparc64: Add privileged ADI driver



SPARC M7 and newer processors utilize ADI to version and
protect memory.  This driver is capable of reading/writing
ADI/MCD versions from privileged user space processes.
Addresses in the adi file are mapped linearly to physical
memory at a ratio of 1:adi_blksz.  Thus, a read (or write)
of offset K in the file operates upon the ADI version at
physical address K * adi_blksz.  The version information
is encoded as one version per byte.  Intended consumers
are makedumpfile and crash.

Signed-off-by: default avatarTom Hromatka <tom.hromatka@oracle.com>
Reviewed-by: default avatarKhalid Aziz <khalid.aziz@oracle.com>
Reviewed-by: default avatarShannon Nelson <shannon.nelson@oracle.com>
Reviewed-by: default avatarAnthony Yznaga <anthony.yznaga@oracle.com>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fff75eb2
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