Support for IBM PowerPC Nest (NX) cryptographic acceleration

configname: CONFIG_CRYPTO_DEV_NX

Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>Support for IBM PowerPC Nest (NX) cryptographic acceleration
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This enables support for the NX hardware cryptographic accelerator
coprocessor that is in IBM PowerPC P7+ or later processors. This
does not actually enable any drivers, it only allows you to select
which acceleration type (encryption and/or compression) to enable.