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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-05-04 20:19:28 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-06-03 13:40:26 +0300 |
| commit | 54071e4176f0cedc39809f51cdbc78edd38ee77a (patch) | |
| tree | bee09315c63fd8bcdc5c14ec844b8fdbab06099d /tools/perf/scripts/python/failed-syscalls-by-pid.py | |
| parent | 9f4b61b2777dfd1692189ab3e38f8eb7dc669512 (diff) | |
| download | linux-54071e4176f0cedc39809f51cdbc78edd38ee77a.tar.xz | |
powerpc/64s: micro-optimise __hard_irq_enable() for mtmsrd L=1 support
Book3S minimum supported ISA version now requires mtmsrd L=1. This
instruction does not require bits other than RI and EE to be supplied,
so __hard_irq_enable() and __hard_irq_disable() does not have to read
the kernel_msr from paca.
Interrupt entry code already relies on L=1 support.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/perf/scripts/python/failed-syscalls-by-pid.py')
0 files changed, 0 insertions, 0 deletions