linux-toradex.git/tools/include/uapi/linux/perf_event.h, branch v5.17-rc1

tools headers UAPI: Add new macros for mem_hops field to perf_event.h

2021-12-22T12:34:43+00:00

Add new macros for mem_hops field which can be used to represent
remote-node, socket and board level details.

Currently the code had macro for HOPS_0 which, corresponds to data
coming from another core but same node.  Add new macros for HOPS_1 to
HOPS_3 to represent remote-node, socket and board level data.

Also add corresponding strings in the mem_hops array to represent
mem_hop field data in perf_mem__lvl_scnprintf function

Incase mem_hops field is used, PERF_MEM_LVLNUM field also need to be set
inorder to represent the data source. Hence printing data source via
PERF_MEM_LVL field can be skip in that scenario.

For ex: Encodings for mem_hops fields with L2 cache:

  L2                      - local L2
  L2 | REMOTE | HOPS_0    - remote core, same node L2
  L2 | REMOTE | HOPS_1    - remote node, same socket L2
  L2 | REMOTE | HOPS_2    - remote socket, same board L2
  L2 | REMOTE | HOPS_3    - remote board L2

Signed-off-by: Kajol Jain 
Acked-by: Peter Zijlstra (Intel) 
Cc: Alexander Shishkin 
Cc: Alexei Starovoitov 
Cc: Andi Kleen 
Cc: Athira Jajeev 
Cc: Daniel Borkmann 
Cc: Jin Yao 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Madhavan Srinivasan 
Cc: Mark Rutland 
Cc: Michael Ellerman 
Cc: Nageswara R Sastry 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Song Liu 
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lore.kernel.org/lkml/20211206091749.87585-3-kjain@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo

Merge remote-tracking branch 'torvalds/master' into perf/core

2021-11-06T18:49:33+00:00

To pick up some tools/perf/ patches that went via tip/perf/core, such
as:

  tools/perf: Add mem_hops field in perf_mem_data_src structure

Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add support for PERF_RECORD_AUX_OUTPUT_HW_ID

2021-10-20T14:22:27+00:00

The PERF_RECORD_AUX_OUTPUT_HW_ID event provides a way to match AUX output
data like Intel PT PEBS-via-PT back to the event that it came from, by
providing a hardware ID that is present in the AUX output.

Reviewed-by: Alexander Shishkin 
Reviewed-by: Andi Kleen 
Signed-off-by: Adrian Hunter 
Cc: Jiri Olsa 
Cc: Kan Liang 
Cc: Leo Yan 
Cc: Mark Rutland 
Cc: Peter Zijlstra 
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20210907163903.11820-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo

tools/perf: Add mem_hops field in perf_mem_data_src structure

2021-10-19T15:27:00+00:00

Going forward, future generation systems can have more hierarchy
within the node/package level but currently we don't have any data source
encoding field in perf, which can be used to represent this level of data.

Add a new field called 'mem_hops' in the perf_mem_data_src structure
which can be used to represent intra-node/package or inter-node/off-package
details. This field is of size 3 bits where PERF_MEM_HOPS_{NA, 0..6} value
can be used to present different hop levels data.

Also add corresponding macros to define mem_hop field values
and shift value.

Currently we define macro for HOPS_0 which corresponds
to data coming from another core but same node.

Add functionality to represent mem_hop field data in
perf_mem__lvl_scnprintf function with the help of added string
array called mem_hops.

For ex: Encodings for mem_hops fields with L2 cache:

L2                      - local L2
L2 | REMOTE | HOPS_0    - remote core, same node L2

Since with the addition of HOPS field, now remote can be used to
denote cache access from the same node but different core, a check
is added in the c2c_decode_stats function to set mrem only when HOPS
is zero along with set remote field.

Signed-off-by: Kajol Jain 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lore.kernel.org/r/20211006140654.298352-4-kjain@linux.ibm.com

perf: Add comment about current state of PERF_MEM_LVL_* namespace and remove an extra line

2021-10-19T15:27:00+00:00

Add a comment about PERF_MEM_LVL_* namespace being depricated
to some extent in favour of added PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_}
fields.

Remove an extra line present in perf_mem__lvl_scnprintf function.

Signed-off-by: Kajol Jain 
Signed-off-by: Peter Zijlstra (Intel) 
Link: https://lore.kernel.org/r/20211006140654.298352-2-kjain@linux.ibm.com

tools headers UAPI: Sync linux/perf_event.h with the kernel sources

2021-05-21T19:03:08+00:00

To pick the trivial change in:

  0683b53197b55343 ("signal: Deliver all of the siginfo perf data in _perf")

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
  diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h

Cc: Eric W. Biederman 
Signed-off-by: Arnaldo Carvalho de Melo

tools headers UAPI: Sync perf_event.h with the kernel sources

2021-05-10T12:01:01+00:00

To pick up the changes in:

  2b26f0aa004995f4 ("perf: Support only inheriting events if cloned with CLONE_THREAD")
  2e498d0a74e5b88a ("perf: Add support for event removal on exec")
  547b60988e631f74 ("perf: aux: Add flags for the buffer format")
  55bcf6ef314ae8ba ("perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE")
  7dde51767ca5339e ("perf: aux: Add CoreSight PMU buffer formats")
  97ba62b278674293 ("perf: Add support for SIGTRAP on perf events")
  d0d1dd628527c77d ("perf core: Add PERF_COUNT_SW_CGROUP_SWITCHES event")

Also change the expected sizeof(struct perf_event_attr) from 120 to 128 due to
fields being added for the SIGTRAP changes.

Addressing this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
  diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h

Cc: Kan Liang 
Cc: Marco Elver 
Cc: Mathieu Poirier 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Suzuki K Poulose 
Signed-off-by: Arnaldo Carvalho de Melo

tools headers uapi: Update tools's copy of linux/perf_event.h

2021-04-29T13:30:59+00:00

To get the changes in:

Liang Kan's patch

  55bcf6ef314ae8ba ("perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE")

Kan's patch is in the tip/perf/core branch.

So the next perf tool patches need this interface for hybrid support.

Signed-off-by: Jin Yao 
Reviewed-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: Kan Liang 
Cc: Peter Zijlstra 
Link: https://lore.kernel.org/r/20210427070139.25256-2-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

tools headers uapi: Update tools's copy of linux/perf_event.h

2021-02-08T19:25:00+00:00

To get the changes in these csets:

  2a6c6b7d7ad346f0 ("perf/core: Add PERF_SAMPLE_WEIGHT_STRUCT")
  61b985e3e775a3a7 ("perf/x86/intel: Add perf core PMU support for Sapphire Rapids")

This cures the following warning during perf's build:

        Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
        diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h

Committer notes:

Picked by hand as I had already merged the MMAP buildid patch that also touches
perf_event.h and is also only in {acme,tip}/perf/core, not yet upstream.

Signed-off-by: Kan Liang 
Cc: Andi Kleen 
Cc: Jin Yao 
Cc: Jiri Olsa 
Cc: Madhavan Srinivasan 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Link: http://lore.kernel.org/lkml/1612296553-21962-2-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo

tools headers uapi: Sync tools/include/uapi/linux/perf_event.h

2020-12-28T12:58:26+00:00

Syncing tools's uapi with mmap2 build id data changes.

Committer notes:

I'm taking the tools/ bits, so this will be in fact ahead of the kernel
till the bpf/perf-kernel bits are merged.

Signed-off-by: Jiri Olsa 
Acked-by: Namhyung Kim 
Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Alexei Budankov 
Cc: Andi Kleen 
Cc: Ian Rogers 
Cc: Mark Rutland 
Cc: Michael Petlan 
Cc: Peter Zijlstra 
Cc: Song Liu 
Cc: Stephane Eranian 
Link: http://lore.kernel.org/lkml/20201214105457.543111-5-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo