diff options
| author | Mark Rutland <[email protected]> | 2016-09-08 13:55:34 +0100 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2016-09-09 11:40:39 +0100 |
| commit | 7aff4a2dd3db4e519c636f43aa863078e3b30d0f (patch) | |
| tree | 04647ea7e4ff76116cdfd25cd63d83436e388cb9 /tools/perf/scripts/python/stackcollapse.py | |
| parent | ee5e41b5f21a5438664effce1ba5bdd11e03ee24 (diff) | |
arm64: sysreg: allow write_sysreg to use XZR
Currently write_sysreg has to allocate a temporary register to write
zero to a system register, which is unfortunate given that the MSR
instruction accepts XZR as an operand.
Allow XZR to be used when appropriate by fiddling with the assembly
constraints.
Cc: Catalin Marinas <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Suzuki K Poulose <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Signed-off-by: Mark Rutland <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions