tree a3623aa1d8eb1aa356357ba37197aa2d4aaa9503
parent 6dab7ede9390d4d937cb89feca932e4fd575d2da
author David S. Miller <davem@davemloft.net> 1345160464 -0700
committer David S. Miller <davem@davemloft.net> 1345356156 -0700

sparc64: Add detection for features new in SPARC-T4.

Compare and branch, pause, and the various new cryptographic opcodes.

We advertise the crypto opcodes to userspace using one hwcap bit,
HWCAP_SPARC_CRYPTO.

This essentially indicates that the %cfr register can be interrograted
and used to determine exactly which crypto opcodes are available on
the current cpu.

We use the %cfr register to report all of the crypto opcodes available
in the bootup CPU caps log message, and via /proc/cpuinfo.

Signed-off-by: David S. Miller <davem@davemloft.net>