diff options
| author | Marc Zyngier <[email protected]> | 2016-10-17 13:47:34 +0100 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2016-10-17 15:54:30 +0100 |
| commit | 850540351bb1a4fa5f192e5ce55b89928cc57f42 (patch) | |
| tree | 52f1d8b1618bdf86eef79f38137651c288180a2e /tools/perf/scripts/python/Perf-Trace-Util/lib | |
| parent | 9a1a1f404be55b07aea64864f98d7306cc493360 (diff) | |
arm64: kernel: Init MDCR_EL2 even in the absence of a PMU
Commit f436b2ac90a0 ("arm64: kernel: fix architected PMU registers
unconditional access") made sure we wouldn't access unimplemented
PMU registers, but also left MDCR_EL2 uninitialized in that case,
leading to trap bits being potentially left set.
Make sure we always write something in that register.
Fixes: f436b2ac90a0 ("arm64: kernel: fix architected PMU registers unconditional access")
Cc: Lorenzo Pieralisi <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib')
0 files changed, 0 insertions, 0 deletions