diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2014-07-16 16:32:44 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2014-07-18 15:24:09 +0100 |
| commit | df857416a13734ed9356f6e4f0152d55e4fb748a (patch) | |
| tree | c18089d69b5ecc00ba4d2828899801ac5cadb270 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 89c4a306e7631bcb71cc537c8a029172af6047fe (diff) | |
arm64: cpuinfo: record cpu system register values
Several kernel subsystems need to know details about CPU system register
values, sometimes for CPUs other than that they are executing on. Rather
than hard-coding system register accesses and cross-calls for these
cases, this patch adds logic to record various system register values at
boot-time. This may be used for feature reporting, firmware bug
detection, etc.
Separate hooks are added for the boot and hotplug paths to enable
one-time intialisation and cold/warm boot value mismatch detection in
later patches.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions