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(parent: 985985f) | patch
powerpc/fsl-book3e: Avoid lbarx on e5500
authorScott Wood <oss@buserror.net>
Thu, 3 Mar 2016 04:51:04 +0000 (22:51 -0600)
committerScott Wood <oss@buserror.net>
Fri, 4 Mar 2016 05:43:05 +0000 (23:43 -0600)
commita0a80cae1b6412d782b3332200e30e5528cb44ac
tree2d846e3812b414f352d91779c311e4b08f1cd069tree | snapshot
parent985985f7eda40944966d4f6dcac542eef457a6e0commit | diff
powerpc/fsl-book3e: Avoid lbarx on e5500

lbarx/stbcx. are implemented on e6500, but not on e5500.
Likewise, SMT is on e6500, but not on e5500.

So, avoid executing an unimplemented instruction by only locking
when needed (i.e. in the presence of SMT).

Signed-off-by: Scott Wood <oss@buserror.net>
arch/powerpc/mm/hugetlbpage-book3e.c diff | blob | history
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