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(parent: 517a1a4) | patch
powerpc: use mfspr for Time Base Register reads
authorSteven Noonan <steven@uplinklabs.net>
Thu, 28 Feb 2013 19:08:06 +0000 (20:08 +0100)
committerJens Axboe <axboe@kernel.dk>
Thu, 28 Feb 2013 19:08:06 +0000 (20:08 +0100)
commitf2dc46ad091681a0746aacef900d3974f05d9fc9
tree0b3d7e98c8cc87c8392e4bbd01aba5af9c9abf5etree | snapshot
parent517a1a48fd672893bc3092ce255f551ef4d8ed2acommit | diff
powerpc: use mfspr for Time Base Register reads

The 'mftb' and 'mftbu' instructions are deprecated in Power ISA v2.06 in favor
of mfspr. Since CPUs supporting mftb/mftbu also support the TBR SPRs, there's
no known reason to keep mftb/mftbu.

Signed-off-by: Steven Noonan <steven@uplinklabs.net>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
arch/arch-ppc.h diff | blob | blame | history
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