kernel/tools/perf/util/pmu.h, branch linux-4.3.y

perf tools: Add perf_pmu__format_bits()

2015-08-06T19:49:01Z

Add perf_pmu__format_bits() to get the format bits for a PMU config term. Intel PT will use this to validate terms and to record format bits to enable later interpreting the config from the attribute stored in the perf.data file. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1437150840-31811-15-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add term support for parse_events_error

2015-04-29T13:38:01Z

Allowing event's term processing to report back error, like: $ perf record -e 'cpu/even=0x1/' ls event syntax error: 'cpu/even=0x1/' \___ unknown term valid terms: pc,any,inv,edge,cmask,event,in_tx,ldlat,umask,in_tx_cp,offcore_rsp,config,config1,config2,name,period,branch_type Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: David Ahern Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1429729824-13932-7-git-send-email-jolsa@kernel.org [ Renamed 'error' variables to 'err', not to clash with util.h error() ] Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add snapshot format file parsing

2014-11-24T21:03:51Z

The .snapshot file indicates that the provided event value is a snapshot value and we have to bypass the delta computation logic. Adding support to check up this file and set event flag accordingly. Signed-off-by: Jiri Olsa Cc: Andi Kleen Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Matt Fleming Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1416562275-12404-10-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add per-pkg format file parsing

2014-11-24T21:03:51Z

The .per-pkg file indicates that all but one value per socket should be discarded. Adding support to check up this file and set event flag accordingly. This patch is part of Matt's original patch: http://marc.info/?l=linux-kernel&m=141527675002139&w=2 only the file parsing part, the rest is solved differently. Signed-off-by: Matt Fleming Cc: Andi Kleen Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1416562275-12404-9-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa Signed-off-by: Arnaldo Carvalho de Melo

perf pmu: Let pmu's with no events show up on perf list

2014-10-29T12:32:48Z

perf list only lists PMUs with events. Add a flag to cause a PMU to be also listed separately. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1414061124-26830-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Parse the pmu event prefix and suffix

2014-10-15T19:05:01Z

There are two types of event formats for PMU events. E.g. el-abort OR cpu/el-abort/. However, the lexer mistakenly recognizes the simple style format as two events. The parse_events_pmu_check function uses bsearch to search the name in known pmu event list. It can tell the lexer that the name is a PE_NAME or a PMU event name prefix or a PMU event name suffix. All these information will be used for accurately parsing kernel PMU events. The pmu events list will be read from sysfs at runtime. Note: Currently, the patch only want to handle the PMU event name as "a-b" and "a". The only exception, "stalled-cycles-frontend" and "stalled-cycles-fronted", are already hardcoded in lexer. Signed-off-by: Kan Liang Acked-by: Jiri Olsa Cc: Andi Kleen Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1412694532-23391-3-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Refactor unit and scale function parameters

2014-09-29T18:03:57Z

Passing pointers to alias modifiers 'unit' and 'scale' isn't very future-proof since if we add more modifiers to the list we'll end up passing more arguments. Instead wrap everything up in a struct perf_pmu_info, which can easily be expanded when additional alias modifiers are necessary in the future. Signed-off-by: Matt Fleming Acked-by: Jiri Olsa Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Jiri Olsa Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1411567455-31264-3-git-send-email-matt@console-pimps.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add perf_pmu__scan_file()

2014-09-17T20:08:09Z

Add a function to scan a sysfs file within the pmu device directory. This will be used to read capability values from the PMU 'caps' subdirectory. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1406786474-9306-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Let default config be defined for a PMU

2014-09-17T20:08:08Z

This allows default config terms to be provided for a PMU. So, for example, when the Intel PT PMU is added, it will be possible to specify: intel_pt// which will be the same as: intel_pt/tsc=1,noretcomp=0/ meaning that the trace should contain TSC timestamps and perform 'return compression'. An important consideration of this patch is that it must be possible to overwrite the default values. That has meant changing the logic so that a zero value can replace a non-zero value. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1406786474-9306-7-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Annotate PMU related list_head members with type info

2014-08-15T13:42:40Z

So that we can more readily understand in which list heads structs are stored into. Signed-off-by: Cody P Schafer Cc: Andi Kleen Cc: Anshuman Khandual Cc: Cody P Schafer Cc: Haren Myneni Cc: Jiri Olsa Cc: Michael Ellerman Cc: Peter Zijlstra Cc: Stephane Eranian Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1408087583-32239-6-git-send-email-sukadev@linux.vnet.ibm.com Signed-off-by: Sukadev Bhattiprolu Signed-off-by: Arnaldo Carvalho de Melo