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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)
commit37c5e942bb2eedd98c1cd1fa1f94d79f6b830c38
tree2d846e3812b414f352d91779c311e4b08f1cd069tree | snapshot (tar.gz zip)
parentfb822e6076d972691c5dd33431c10f82dda94ae9commit | 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 | blame | history