It is to be displayed in the single cacheline output:

  tid

It's a wrapper for global sort_thread sort entry with c2c specific
header.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-fr0socae5skzvz5qbkl85prn@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

It is to be displayed in the single cacheline output:

  pid

We currently don't have a single 'pid' sort/display entry, which would
output just pid number, hence adding it into c2c code.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-3o23qrspxc99b04ci1swlzr6@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

They are to be displayed in the main cachelines overall output:

  dram_lcl, dram_rmt

They display DRAM rmt/lcl access numbers for specific cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-tl3qqi9ehk6g1fla4z7y0ykd@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

They are to be displayed in the single cacheline output:

  percent_rmt_hitm, percent_lcl_hitm, percent_stores_l1hit, percent_stores_l1miss

They display percentage of HITMs/stores for specific offset in the
cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-t365aosxtdut8sgrgn8mfoe4@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

It is to be displayed in the main cachelines overall output:

  percent_hitm

It displays HITMs percentage for cacheline.

It counts remote HITMs at the moment, but it is changed later to support
local as well, based on the sort configuration.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-czd17qsh5u5z0yc1estz9l2y@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

It is to be displayed in the main cachelines overall output:

  tot_loads

It displays sum of all load accesses for cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-czd17qsh5u5z0yc1estz9l2y@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

It is to be displayed in the main cachelines overall output:

  tot_recs

It displays sum of all cachelines accesses.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-wojujik7zzen770mxn295mxa@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

It is to be displayed in the main cachelines overall output:

  ld_llcmiss

It displays bare number of LLC misses for cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-wojujik7zzen770mxn295mxa@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Add 2 LLC load related dimension key wrappers.

They are to be displayed in the main cachelines overall output:

  ld_lclhit, ld_rmthit

They display bare numbers of LLC and remote loads for cacheline.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-ahjg0voaufefboemjuj9yefh@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Add 3 loads related dimension key wrappers.

They are to be displayed in the main cachelines overall output:

  ld_fbhit, ld_l1hit, ld_l2hit

They all display bare numbers of loads for
FB (Fill Buffer), L1 and L2 cache.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-wxrzhy74zl8fvkvgjae3w1ju@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Add 5 stores related dimension key wrappers.

First 3 are to be displayed in the main cachelines overall output:

  stores, stores_l1hit, stores_l1miss

The latter 2 are to be displayed within single cacheline output:

  cl_stores_l1hit, cl_stores_l1miss

They all display bare numbers of stores for cacheline or its related
offsets.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-qeml8v53v6q3wl5n8vgbf64r@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Adding 5 hitm related dimension key wrappers.

First 3 are to be displayed in the main cachelines overall output:

  tot_hitm, lcl_hitm, rmt_hitm

The latter 2 are to be displayed within single cacheline output:

  cl_rmt_hitm, cl_lcl_hitm

They all display bare numbers of remote/local/total HITMs for cacheline
or its related offsets.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-iju5239xa5heqqben65g1u7e@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

It displays the code address (as hex number) responsible for the
accesses.

Using c2c wrapper to standard 'symbol_iaddr' object to define own header
and simple (just address) code address output.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-rhshygbst6kr75kju0muwt5x@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

It displays cacheline offset as hex number.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-m0424ye98lqveg5nopto8qww@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

It displays cacheline address as hex number.

Using c2c wrapper to standard 'dcacheline' object to defined own header
and simple (just address) cacheline output.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-21-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Adding helping macros to define header objects.  It will be used in
following patches, that add new dimensions.

The c2c report will support 2 line headers, hence we only define
line[0/1] in macros.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-20-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Decoding and storing c2c_stats for each hist entry.  Changing related
function to work with c2c_* objects.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-19-git-send-email-jolsa@kernel.org
[ Add '.nr_entries = 0' to the c2c_stats initialization to fix the build on older distros ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Store cacheline related entries in nested hist object for each cacheline
data. Nested entries are sorted by 'offset' within related cacheline.

We will allow specific sort keys to be configured for nested cacheline
data entries in following patches.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-18-git-send-email-jolsa@kernel.org
[ he__get_hists() should return NULL when c2c_hists__init() fails ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Adding basic sample processing specific hist_entry allocation callbacks
(via hists__add_entry_ops).

Overloading 'struct hist_entry' object with new 'struct c2c_hist_entry'.
The new hist entry object will carry specific stats and nested hists
objects.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-17-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Fallback to standard dimensions in case we don't find the dimension
within c2c ones.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-16-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Allow to reuse 'struct sort_entry' objects within c2c dimension support.

In case the 'struct sort_entry' object meets the need of c2c report we
will use it directly in following patches.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-15-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Adding bare bones of dimension support for c2c report.

Main interface functions are:

  c2c_hists__init
  c2c_hists__reinit

which re/initialize 'struct c2c_hists' object with sort/display entries
string, in a similar way that setup_sorting function does.

We overload the dimension to provide multi line header support for
sort/display entries.

Also we overload base 'struct perf_hpp_fmt' object with 'struct c2c_fmt'
to define c2c specific functions to deal with multi line headers and
spans.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-14-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Adding c2c report subcommand. It reads the perf.data and displays shared
data analysis.

This patch adds report basic wirings. It gets fully implemented in
following patches.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-13-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Adding c2c record subcommand. It setups options related to HITM
cacheline analysis and calls standard perf record command.

  $ sudo perf c2c record -v -- -a
  calling: record -W -d --sample-cpu -e cpu/mem-loads,ldlat=30/P -e cpu/mem-stores/P -a
  ...

It produces perf.data, which is to be reported by perf c2c report, that
comes in following patches.

Details are described in the man page, which is added in one of the
following patches.

Committer notes:

Testing it:

  # perf c2c record -a sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 5.050 MB perf.data (412 samples) ]
  # ls -la perf.data
  -rw-------. 1 root root 5301752 Oct  4 13:32 perf.data
  # perf evlist
  cpu/mem-loads,ldlat=30/P
  cpu/mem-stores/P
  # perf evlist -v
  cpu/mem-loads,ldlat=30/P: type: 4, size: 112, config: 0x1cd, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, mmap_data: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1, { bp_addr, config1 }: 0x1f
  cpu/mem-stores/P: type: 4, size: 112, config: 0x82d0, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, freq: 1, precise_ip: 3, sample_id_all: 1
  #
  # perf report --stdio
  <SNIP>
  # Total Lost Samples: 14
  # Samples: 216  of event 'cpu/mem-loads,ldlat=30/P'
  # Event count (approx.): 15207
  # Overhead  Symbol                                 Shared Object
  # ........  .....................................  ............................
      10.32%  [k] update_blocked_averages            [kernel.vmlinux]
       3.43%  [.] 0x00000000001a2122                 qemu-system-x86_64 (deleted)
       2.52%  [k] enqueue_entity                     [kernel.vmlinux]
       1.88%  [.] g_main_context_query               libglib-2.0.so.0.4800.2
       1.86%  [k] __schedule                         [kernel.vmlinux]
  <SNIP>
  # Samples: 196  of event 'cpu/mem-stores/P'
  # Event count (approx.): 14771346
  # Overhead  Symbol                               Shared Object
  # ........  ...................................  ............................
      13.91%  [k] intel_idle                       [kernel.vmlinux]
       3.02%  [.] 0x00000000022f06ea               chrome
       2.94%  [.] 0x00000000001a1b4c               qemu-system-x86_64 (deleted)
       2.94%  [.] 0x000000000019d8e4               qemu-system-x86_64 (deleted)
       2.38%  [.] 0x00000000001a1c52               qemu-system-x86_64 (deleted)
  <SNIP>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-12-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Adding c2c command base wirings. Its implementation is going to be added
gradually in following patches.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-11-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Introducing c2c_add_stats function helper to cumulate c2c_stats.
Original-patch-by: Dick Fowles <rfowles@redhat.com>
Original-patch-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-4-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Introducing c2c_decode_stats function, which decodes
data_src data into new struct c2c_stats.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Original-patch-by: Dick Fowles <rfowles@redhat.com>
Original-patch-by: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-3-git-send-email-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Merge tag 'perf-vendor_events-for-mingo-20161018' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Pull perf/vendor_events event tables from Arnaldo Carvalho de Melo:

- Add JSON files with vendor event naming for Intel and Power8 processors,
  allowing users of tools like oprofile to keep using the event names they
  are used to, as well as people reading vendor documentation, where such
  naming is used. (Andi Kleen, Sukadev Bhattiprolu)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

Pull f2fs bugfix from Jaegeuk Kim:
 "This fixes a bug which referenced the wrong pointer, sum_page, in
  f2fs_gc.  It was newly introduced in 4.9-rc1.

* tag 'for-f2fs-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: fix wrong sum_page pointer in f2fs_gc

Pull x86 fixes from Ingo Molnar:
 "Misc fixes, plus hw-enablement changes:

   - fix persistent RAM handling
   - remove pkeys warning
   - remove duplicate macro
   - fix debug warning in irq handler
   - add new 'Knights Mill' CPU related constants and enable the perf bits"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/uncore: Add Knights Mill CPUID
  perf/x86/intel/rapl: Add Knights Mill CPUID
  perf/x86/intel: Add Knights Mill CPUID
  x86/cpu/intel: Add Knights Mill to Intel family
  x86/e820: Don't merge consecutive E820_PRAM ranges
  pkeys: Remove easily triggered WARN
  x86: Remove duplicate rtit status MSR macro
  x86/smp: Add irq_enter/exit() in smp_reschedule_interrupt()

Pull timer fixlet from Ingo Molnar:
 "Remove an unused variable"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  alarmtimer: Remove unused but set variable

Pull scheduler fix from Ingo Molnar:
 "Fix a crash that can trigger when racing with CPU hotplug: we didn't
  use sched-domains data structures carefully enough in select_idle_cpu()"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix sched domains NULL dereference in select_idle_sibling()

Pull perf fixes from Ingo Molnar:
 "Four tooling fixes, two kprobes KASAN related fixes and an x86 PMU
  driver fix/cleanup"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf jit: Fix build issue on Ubuntu
  perf jevents: Handle events including .c and .o
  perf/x86/intel: Remove an inconsistent NULL check
  kprobes: Unpoison stack in jprobe_return() for KASAN
  kprobes: Avoid false KASAN reports during stack copy
  perf header: Set nr_numa_nodes only when we parsed all the data
  perf top: Fix refreshing hierarchy entries on TUI

Pull locking fixes from Ingo Molnar:
 "Two fixes:

   - a file locks fix (missing critical section, bug introduced in this
     merge window)

   - an x86 down_write() stack frame annotation"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking, fs/locks: Add missing file_sem locks
  locking/rwsem/x86: Add stack frame dependency for ____down_write()

Pull irq fixes from Ingo Molnar:
 "Three irqchip driver fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gicv3: Handle loop timeout proper
  irqchip/jcore: Fix lost per-cpu interrupts
  irqchip/eznps: Acknowledge NPS_IPI before calling the handler

Pull misc fixes from Ingo Molnar:
 "A CPU hotplug debuggability fix and three objtool false positive
  warnings fixes for new GCC6 code generation patterns"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Use distinct name for cpu_hotplug.dep_map
  objtool: Skip all "unreachable instruction" warnings for gcov kernels
  objtool: Improve rare switch jump table pattern detection
  objtool: Support '-mtune=atom' stack frame setup instruction

Pull firewire fixlet from Stefan Richter:
 "IEEE 1394 subsystem patch: catch an initialization error in the packet
  sniffer nosy"

* tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: nosy: do not ignore errors in ioremap_nocache()

Pull drm fixes from Dave Airlie:
 "Just had a couple of amdgpu fixes and one core fix I wanted to get out
  early to fix some regressions.

  I'm sure I'll have more stuff this week for -rc2"

* tag 'drm-fixes-for-v4.9-rc2' of git://people.freedesktop.org/~airlied/linux: (22 commits)
  drm: Print device information again in debugfs
  drm/amd/powerplay: fix bug stop dpm can't work on Vi.
  drm/amd/powerplay: notify smu no display by default.
  drm/amdgpu/dpm: implement thermal sensor for CZ/ST
  drm/amdgpu/powerplay: implement thermal sensor for CZ/ST
  drm/amdgpu: disable smu hw first on tear down
  drm/amdgpu: fix amdgpu_need_full_reset (v2)
  drm/amdgpu/si_dpm: Limit clocks on HD86xx part
  drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.c
  drm/amdgpu: potential NULL dereference in debugfs code
  drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.c
  drm/amd/powerplay: fix static checker warnings in iceland_smc.c
  drm/radeon: change vblank_time's calculation method to reduce computational error.
  drm/amdgpu: change vblank_time's calculation method to reduce computational error.
  drm/amdgpu: clarify UVD/VCE special handling for CG
  drm/amd/amdgpu: enable clockgating only after late init
  drm/radeon: allow TA_CS_BC_BASE_ADDR on SI
  drm/amdgpu: initialize the context reset_counter in amdgpu_ctx_init
  drm/amdgpu/gfx8: fix CGCG_CGLS handling
  drm/radeon: fix modeset tear down code
  ...

I overlooked a few code-paths that can lead to
locks_delete_global_locks().
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Jeff Layton <jlayton@poochiereds.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Bruce Fields <bfields@fieldses.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-fsdevel@vger.kernel.org
Cc: syzkaller <syzkaller@googlegroups.com>
Link: http://lkml.kernel.org/r/20161008081228.GF3142@twins.programming.kicks-ass.netSigned-off-by: Ingo Molnar <mingo@kernel.org>

Arnd reported the following objtool warning:

  kernel/locking/rwsem.o: warning: objtool: down_write_killable()+0x16: call without frame pointer save/setup

The warning means gcc placed the ____down_write() inline asm (and its
call instruction) before the frame pointer setup in
down_write_killable(), which breaks frame pointer convention and can
result in incorrect stack traces.

Force the stack frame to be created before the call instruction by
listing the stack pointer as an output operand in the inline asm
statement.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1188b7015f04baf361e59de499ee2d7272c59dce.1476393828.git.jpoimboe@redhat.comSigned-off-by: Ingo Molnar <mingo@kernel.org>