diff options
author | Matt Redfearn <matt.redfearn@imgtec.com> | 2016-09-07 10:45:10 +0100 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2016-10-04 16:13:57 +0200 |
commit | d6219420480b75258b93583caa3885fb80d83313 (patch) | |
tree | d58c4928655e95d4ef4cac1ed67234d85c82dd53 /tools/perf/scripts/python/stackcollapse.py | |
parent | 6b89d22e742aa3fbb1878c2e6684b0bfd591f7c8 (diff) |
MIPS: CPC: Avoid lock when MIPS CM >= 3 is present
MIPS CM version 3 removed the CPC_CL_OTHER register and instead the
CM_CL_OTHER register is used to redirect the CPC_OTHER region. As such,
we should not write the unimplmented register and can avoid the
spinlock as well.
These lock functions should aleady be called within the context of a
mips_cm_{lock,unlock}_other pair ensuring the correct CPC_OTHER region
will be accessed.
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14219/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions