On Fri, Sep 11, 2020 at 03:51:08PM -0600, Rob Herring wrote: > This is resurrecting Raphael's series[1] to enable userspace counter > access on arm64. My previous versions are here[2][3]. > > Changes in v3: > - Dropped removing x86 rdpmc test until libperf tests can run via 'perf test' > - Added verbose prints for tests > - Split adding perf_evsel__mmap() to separate patch
hi, which commit/branch did you base on? I can't apply arm bits: Applying: arm64: pmu: Add hook to handle pmu-related undefined instructions Applying: arm64: perf: Enable pmu counter direct access for perf event on armv8 error: patch failed: arch/arm64/kernel/perf_event.c:836 error: arch/arm64/kernel/perf_event.c: patch does not apply Patch failed at 0002 arm64: perf: Enable pmu counter direct access for perf event on armv8 thanks, jirka