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ec71a398c1
The pebs_drain() need to support fixed counters. The DS Save Area now include "counter reset value" fields for each fixed counters. Extend the related variables (e.g. mask, counters, error) to support fixed counters. There is no extended PEBS in PEBS v2 and earlier PEBS format. Only need to change the code for PEBS v3 and later PEBS format. Extend the pebs_event_reset[] logic to support new "counter reset value" fields. Increase the reserve space for fixed counters. Based-on-code-from: Andi Kleen <ak@linux.intel.com> Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: acme@kernel.org Link: http://lkml.kernel.org/r/20180309021542.11374-3-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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