diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2017-06-13 23:05:49 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-06-19 19:46:28 +1000 |
| commit | b48bbb82e2b83537c500417d60218ad44446e572 (patch) | |
| tree | 11d3df0baa7c3941c188448046b3e51c7db7f578 /tools/perf/scripts/python | |
| parent | powerpc/64s: msgclr when handling doorbell exceptions from system reset (diff) | |
| download | linux-b48bbb82e2b83537c500417d60218ad44446e572.tar.gz linux-b48bbb82e2b83537c500417d60218ad44446e572.zip | |
powerpc/64s: Don't unbalance the return branch predictor in __replay_interrupt()
The __replay_interrupt() code is branched to with bl, but the caller is
returned to directly with rfid from the interrupt.
Instead, rfid to a stub that returns to the caller with blr, which
should keep the return branch predictor balanced.
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions