1. 06 Dec, 2017 1 commit
    • Ingo Molnar's avatar
      tooling/headers: Synchronize updated s390 and x86 UAPI headers · 34c9ca37
      Ingo Molnar authored
      There were two trivial updates to these upstream UAPI headers:
      
        arch/s390/include/uapi/asm/kvm.h
        arch/s390/include/uapi/asm/kvm_perf.h
        arch/x86/lib/x86-opcode-map.txt
      
      Synchronize them with their tooling copies.
      
      (The x86 opcode map includes a new instruction pattern now.)
      
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: linux-kernel@vger.kernel.org
      Signed-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      34c9ca37
  2. 05 Dec, 2017 1 commit
  3. 28 Nov, 2017 2 commits
    • Arnaldo Carvalho de Melo's avatar
      tools headers: Synchronize KVM arch ABI headers · 374fbe56
      Arnaldo Carvalho de Melo authored
      To pick up changes from these csets:
      
        da9a1446 ("KVM: s390: provide a capability for AIS state migration")
        5c5196da ("KVM: arm/arm64: Support EL1 phys timer register access in set/get reg")
      
      None of which affects buildint tools/perf/.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Christian Borntraeger <borntraeger@de.ibm.com>
      Cc: Christoffer Dall <cdall@linaro.org>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: https://lkml.kernel.org/n/tip-dd72s6izo4qdzt1isowlz8ji@git.kernel.orgSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      374fbe56
    • Ingo Molnar's avatar
      tools/headers: Synchronize kernel x86 UAPI headers · 0b44cfb8
      Ingo Molnar authored
      Two x86 headers got modified in this merge window:
      
       arch/x86/include/asm/cpufeatures.h
       arch/x86/include/asm/disabled-features.h
      
      To support x86 UMIP feature, to add new AVX instructions, plus cleanups.
      
      None of those changes have an effect on tooling, so do a plain copy.
      
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: linux-kernel@vger.kernel.org
      Signed-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      0b44cfb8
  4. 04 Nov, 2017 1 commit
    • Ingo Molnar's avatar
      tools/headers: Synchronize kernel ABI headers · fb7df12d
      Ingo Molnar authored
      After the SPDX license tags were added a number of tooling headers got out of
      sync with their kernel variants, generating lots of build warnings.
      
      Sync them:
      
       - tools/arch/x86/include/asm/disabled-features.h,
         tools/arch/x86/include/asm/required-features.h,
         tools/include/linux/hash.h:
      
           Remove the SPDX tag where the kernel version does not have it.
      
       - tools/include/asm-generic/bitops/__fls.h,
         tools/include/asm-generic/bitops/arch_hweight.h,
         tools/include/asm-generic/bitops/const_hweight.h,
         tools/include/asm-generic/bitops/fls.h,
         tools/include/asm-generic/bitops/fls64.h,
         tools/include/uapi/asm-generic/ioctls.h,
         tools/include/uapi/asm-generic/mman-common.h,
         tools/include/uapi/sound/asound.h,
         tools/include/uapi/linux/kvm.h,
         tools/include/uapi/linux/perf_event.h,
         tools/include/uapi/linux/sched.h,
         tools/include/uapi/linux/vhost.h,
         tools/include/uapi/sound/asound.h:
      
           Add the SPDX tag of the respective kernel header.
      
       - tools/include/uapi/linux/bpf_common.h,
         tools/include/uapi/linux/fcntl.h,
         tools/include/uapi/linux/hw_breakpoint.h,
         tools/include/uapi/linux/mman.h,
         tools/include/uapi/linux/stat.h,
      
           Change the tag to the kernel header version:
      
             -/* SPDX-License-Identifier: GPL-2.0 */
             +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      
      Also sync other header details:
      
       - include/uapi/sound/asound.h:
      
           Fix pointless end of line whitespace noise the header grew in this cycle.
      
       - tools/arch/x86/lib/memcpy_64.S:
      
           Sync the code and add tools/include/asm/export.h with dummy wrappers
           to support building the kernel side code in a tooling header environment.
      
       - tools/include/uapi/asm-generic/mman.h,
         tools/include/uapi/linux/bpf.h:
      
           Sync other details that don't impact tooling's use of the ABIs.
      Acked-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: linux-kernel@vger.kernel.org
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Stephen Rothwell <sfr@canb.auug.org.au>
      Signed-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      fb7df12d
  5. 02 Nov, 2017 3 commits
    • Greg Kroah-Hartman's avatar
      License cleanup: add SPDX license identifier to uapi header files with a license · e2be04c7
      Greg Kroah-Hartman authored
      Many user space API headers have licensing information, which is either
      incomplete, badly formatted or just a shorthand for referring to the
      license under which the file is supposed to be.  This makes it hard for
      compliance tools to determine the correct license.
      
      Update these files with an SPDX license identifier.  The identifier was
      chosen based on the license information in the file.
      
      GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
      identifier with the added 'WITH Linux-syscall-note' exception, which is
      the officially assigned exception identifier for the kernel syscall
      exception:
      
         NOTE! This copyright does *not* cover user programs that use kernel
         services by normal system calls - this is merely considered normal use
         of the kernel, and does *not* fall under the heading of "derived work".
      
      This exception makes it possible to include GPL headers into non GPL
      code, without confusing license compliance tools.
      
      Headers which have either explicit dual licensing or are just licensed
      under a non GPL license are updated with the corresponding SPDX
      identifier and the GPLv2 with syscall exception identifier.  The format
      is:
              ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
      
      SPDX license identifiers are a legally binding shorthand, which can be
      used instead of the full boiler plate text.  The update does not remove
      existing license information as this has to be done on a case by case
      basis and the copyright holders might have to be consulted. This will
      happen in a separate step.
      
      This patch is based on work done by Thomas Gleixner and Kate Stewart and
      Philippe Ombredanne.  See the previous patch in this series for the
      methodology of how this patch was researched.
      Reviewed-by: 's avatarKate Stewart <kstewart@linuxfoundation.org>
      Reviewed-by: 's avatarPhilippe Ombredanne <pombredanne@nexb.com>
      Reviewed-by: 's avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: 's avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      e2be04c7
    • Greg Kroah-Hartman's avatar
      License cleanup: add SPDX license identifier to uapi header files with no license · 6f52b16c
      Greg Kroah-Hartman authored
      Many user space API headers are missing licensing information, which
      makes it hard for compliance tools to determine the correct license.
      
      By default are files without license information under the default
      license of the kernel, which is GPLV2.  Marking them GPLV2 would exclude
      them from being included in non GPLV2 code, which is obviously not
      intended. The user space API headers fall under the syscall exception
      which is in the kernels COPYING file:
      
         NOTE! This copyright does *not* cover user programs that use kernel
         services by normal system calls - this is merely considered normal use
         of the kernel, and does *not* fall under the heading of "derived work".
      
      otherwise syscall usage would not be possible.
      
      Update the files which contain no license information with an SPDX
      license identifier.  The chosen identifier is 'GPL-2.0 WITH
      Linux-syscall-note' which is the officially assigned identifier for the
      Linux syscall exception.  SPDX license identifiers are a legally binding
      shorthand, which can be used instead of the full boiler plate text.
      
      This patch is based on work done by Thomas Gleixner and Kate Stewart and
      Philippe Ombredanne.  See the previous patch in this series for the
      methodology of how this patch was researched.
      Reviewed-by: 's avatarKate Stewart <kstewart@linuxfoundation.org>
      Reviewed-by: 's avatarPhilippe Ombredanne <pombredanne@nexb.com>
      Reviewed-by: 's avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: 's avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      6f52b16c
    • Greg Kroah-Hartman's avatar
      License cleanup: add SPDX GPL-2.0 license identifier to files with no license · b2441318
      Greg Kroah-Hartman authored
      Many source files in the tree are missing licensing information, which
      makes it harder for compliance tools to determine the correct license.
      
      By default all files without license information are under the default
      license of the kernel, which is GPL version 2.
      
      Update the files which contain no license information with the 'GPL-2.0'
      SPDX license identifier.  The SPDX identifier is a legally binding
      shorthand, which can be used instead of the full boiler plate text.
      
      This patch is based on work done by Thomas Gleixner and Kate Stewart and
      Philippe Ombredanne.
      
      How this work was done:
      
      Patches were generated and checked against linux-4.14-rc6 for a subset of
      the use cases:
       - file had no licensing information it it.
       - file was a */uapi/* one with no licensing information in it,
       - file was a */uapi/* one with existing licensing information,
      
      Further patches will be generated in subsequent months to fix up cases
      where non-standard license headers were used, and references to license
      had to be inferred by heuristics based on keywords.
      
      The analysis to determine which SPDX License Identifier to be applied to
      a file was done in a spreadsheet of side by side results from of the
      output of two independent scanners (ScanCode & Windriver) producing SPDX
      tag:value files created by Philippe Ombredanne.  Philippe prepared the
      base worksheet, and did an initial spot review of a few 1000 files.
      
      The 4.13 kernel was the starting point of the analysis with 60,537 files
      assessed.  Kate Stewart did a file by file comparison of the scanner
      results in the spreadsheet to determine which SPDX license identifier(s)
      to be applied to the file. She confirmed any determination that was not
      immediately clear with lawyers working with the Linux Foundation.
      
      Criteria used to select files for SPDX license identifier tagging was:
       - Files considered eligible had to be source code files.
       - Make and config files were included as candidates if they contained >5
         lines of source
       - File already had some variant of a license header in it (even if <5
         lines).
      
      All documentation files were explicitly excluded.
      
      The following heuristics were used to determine which SPDX license
      identifiers to apply.
      
       - when both scanners couldn't find any license traces, file was
         considered to have no license information in it, and the top level
         COPYING file license applied.
      
         For non */uapi/* files that summary was:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|-------
         GPL-2.0                                              11139
      
         and resulted in the first patch in this series.
      
         If that file was a */uapi/* path one, it was "GPL-2.0 WITH
         Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|-------
         GPL-2.0 WITH Linux-syscall-note                        930
      
         and resulted in the second patch in this series.
      
       - if a file had some form of licensing information in it, and was one
         of the */uapi/* ones, it was denoted with the Linux-syscall-note if
         any GPL family license was found in the file or had no licensing in
         it (per prior point).  Results summary:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|------
         GPL-2.0 WITH Linux-syscall-note                       270
         GPL-2.0+ WITH Linux-syscall-note                      169
         ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
         ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
         LGPL-2.1+ WITH Linux-syscall-note                      15
         GPL-1.0+ WITH Linux-syscall-note                       14
         ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
         LGPL-2.0+ WITH Linux-syscall-note                       4
         LGPL-2.1 WITH Linux-syscall-note                        3
         ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
         ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1
      
         and that resulted in the third patch in this series.
      
       - when the two scanners agreed on the detected license(s), that became
         the concluded license(s).
      
       - when there was disagreement between the two scanners (one detected a
         license but the other didn't, or they both detected different
         licenses) a manual inspection of the file occurred.
      
       - In most cases a manual inspection of the information in the file
         resulted in a clear resolution of the license that should apply (and
         which scanner probably needed to revisit its heuristics).
      
       - When it was not immediately clear, the license identifier was
         confirmed with lawyers working with the Linux Foundation.
      
       - If there was any question as to the appropriate license identifier,
         the file was flagged for further research and to be revisited later
         in time.
      
      In total, over 70 hours of logged manual review was done on the
      spreadsheet to determine the SPDX license identifiers to apply to the
      source files by Kate, Philippe, Thomas and, in some cases, confirmation
      by lawyers working with the Linux Foundation.
      
      Kate also obtained a third independent scan of the 4.13 code base from
      FOSSology, and compared selected files where the other two scanners
      disagreed against that SPDX file, to see if there was new insights.  The
      Windriver scanner is based on an older version of FOSSology in part, so
      they are related.
      
      Thomas did random spot checks in about 500 files from the spreadsheets
      for the uapi headers and agreed with SPDX license identifier in the
      files he inspected. For the non-uapi files Thomas did random spot checks
      in about 15000 files.
      
      In initial set of patches against 4.14-rc6, 3 files were found to have
      copy/paste license identifier errors, and have been fixed to reflect the
      correct identifier.
      
      Additionally Philippe spent 10 hours this week doing a detailed manual
      inspection and review of the 12,461 patched files from the initial patch
      version early this week with:
       - a full scancode scan run, collecting the matched texts, detected
         license ids and scores
       - reviewing anything where there was a license detected (about 500+
         files) to ensure that the applied SPDX license was correct
       - reviewing anything where there was no detection but the patch license
         was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
         SPDX license was correct
      
      This produced a worksheet with 20 files needing minor correction.  This
      worksheet was then exported into 3 different .csv files for the
      different types of files to be modified.
      
      These .csv files were then reviewed by Greg.  Thomas wrote a script to
      parse the csv files and add the proper SPDX tag to the file, in the
      format that the file expected.  This script was further refined by Greg
      based on the output to detect more types of files automatically and to
      distinguish between header and source .c files (which need different
      comment types.)  Finally Greg ran the script using the .csv files to
      generate the patches.
      Reviewed-by: 's avatarKate Stewart <kstewart@linuxfoundation.org>
      Reviewed-by: 's avatarPhilippe Ombredanne <pombredanne@nexb.com>
      Reviewed-by: 's avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: 's avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      b2441318
  6. 25 Oct, 2017 1 commit
    • Mark Rutland's avatar
      locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns... · 6aa7de05
      Mark Rutland authored
      locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()
      
      Please do not apply this to mainline directly, instead please re-run the
      coccinelle script shown below and apply its output.
      
      For several reasons, it is desirable to use {READ,WRITE}_ONCE() in
      preference to ACCESS_ONCE(), and new code is expected to use one of the
      former. So far, there's been no reason to change most existing uses of
      ACCESS_ONCE(), as these aren't harmful, and changing them results in
      churn.
      
      However, for some features, the read/write distinction is critical to
      correct operation. To distinguish these cases, separate read/write
      accessors must be used. This patch migrates (most) remaining
      ACCESS_ONCE() instances to {READ,WRITE}_ONCE(), using the following
      coccinelle script:
      
      ----
      // Convert trivial ACCESS_ONCE() uses to equivalent READ_ONCE() and
      // WRITE_ONCE()
      
      // $ make coccicheck COCCI=/home/mark/once.cocci SPFLAGS="--include-headers" MODE=patch
      
      virtual patch
      
      @ depends on patch @
      expression E1, E2;
      @@
      
      - ACCESS_ONCE(E1) = E2
      + WRITE_ONCE(E1, E2)
      
      @ depends on patch @
      expression E;
      @@
      
      - ACCESS_ONCE(E)
      + READ_ONCE(E)
      ----
      Signed-off-by: 's avatarMark Rutland <mark.rutland@arm.com>
      Signed-off-by: 's avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: davem@davemloft.net
      Cc: linux-arch@vger.kernel.org
      Cc: mpe@ellerman.id.au
      Cc: shuah@kernel.org
      Cc: snitzer@redhat.com
      Cc: thor.thayer@linux.intel.com
      Cc: tj@kernel.org
      Cc: viro@zeniv.linux.org.uk
      Cc: will.deacon@arm.com
      Link: http://lkml.kernel.org/r/1508792849-3115-19-git-send-email-paulmck@linux.vnet.ibm.comSigned-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      6aa7de05
  7. 25 Sep, 2017 1 commit
    • Ingo Molnar's avatar
      tools include: Sync kernel ABI headers with tooling headers · 549a3976
      Ingo Molnar authored
      Time for a sync with ABI/uapi headers with the upcoming v4.14 kernel.
      
      None of the ABI changes require any source code level changes to our
      existing in-kernel tooling code:
      
        - tools/arch/s390/include/uapi/asm/kvm.h:
      
            New KVM_S390_VM_TOD_EXT ABI, not used by in-kernel tooling.
      
        - tools/arch/x86/include/asm/cpufeatures.h:
          tools/arch/x86/include/asm/disabled-features.h:
      
            New PCID, SME and VGIF x86 CPU feature bits defined.
      
        - tools/include/asm-generic/hugetlb_encode.h:
          tools/include/uapi/asm-generic/mman-common.h:
          tools/include/uapi/linux/mman.h:
      
            Two new madvise() flags, plus a hugetlb system call mmap flags
            restructuring/extension changes.
      
        - tools/include/uapi/drm/drm.h:
          tools/include/uapi/drm/i915_drm.h:
      
            New drm_syncobj_create flags definitions, new drm_syncobj_wait
            and drm_syncobj_array ABIs. DRM_I915_PERF_* calls and a new
            I915_PARAM_HAS_EXEC_FENCE_ARRAY ABI for the Intel driver.
      
        - tools/include/uapi/linux/bpf.h:
      
            New bpf_sock fields (::mark and ::priority), new XDP_REDIRECT
            action, new kvm_ppc_smmu_info fields (::data_keys, instr_keys)
      Signed-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Milian Wolff <milian.wolff@kdab.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Taeung Song <treeze.taeung@gmail.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Cc: Yao Jin <yao.jin@linux.intel.com>
      Link: http://lkml.kernel.org/r/20170913073823.lxmi4c7ejqlfabjx@gmail.comSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      549a3976
  8. 28 Aug, 2017 1 commit
    • Arnaldo Carvalho de Melo's avatar
      tools headers: Sync cpu features kernel ABI headers with tooling headers · a2105f8a
      Arnaldo Carvalho de Melo authored
      These changes made the tools/arch/x86/include/ headers to drift from its
      kernel origins:
      
        910448bb ("perf/x86/amd/uncore: Rename cpufeatures macro for cache counters")
        5442c269 ("x86/cpufeature, kvm/svm: Rename (shorten) the new "virtualized VMSAVE/VMLOAD" CPUID flag")
        cba4671a ("x86/mm: Disable PCID on 32-bit kernels")
      
      Which was detected while building perf:
      
        make: Entering directory '/home/acme/git/linux/tools/perf'
          BUILD:   Doing 'make -j4' parallel build
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
        Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
      
      This sync causes just these perf object files to be rebuilt:
      
        CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
        CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o
      
      And the changes in the above changesets don't entail any need for change
      in the above 'perf bench' files.
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Borislav Petkov <bp@suse.de>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-456aafouj911a4x4zwt8stkm@git.kernel.orgSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a2105f8a
  9. 22 Aug, 2017 1 commit
  10. 31 Jul, 2017 1 commit
    • Ingo Molnar's avatar
      tools headers: Sync kernel ABI headers with tooling headers · a40f6177
      Ingo Molnar authored
      Sync up (copy) the following v4.13 kernel headers to the tooling headers:
      
        arch/arm/include/uapi/asm/kvm.h:
        arch/arm64/include/uapi/asm/kvm.h:
        arch/powerpc/include/uapi/asm/kvm.h:
        arch/s390/include/uapi/asm/kvm.h:
      
         - KVM ABI extensions, which do not affect perf tooling
      
        arch/x86/include/asm/cpufeatures.h:
        arch/x86/include/asm/disabled-features.h:
      
         - New PCID CPU feature on Intel CPUs - does not affect tooling.
      
      I.e. no real changes were needed to resolve the build warnings, just a plain copy
      of the latest kernel header version.
      Signed-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Andi Kleen <ak@linux.intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: David Carrillo-Cisneros <davidcc@google.com>
      Cc: Francis Deslauriers <francis.deslauriers@efficios.com>
      Cc: Geneviève Bastien <gbastien@versatic.net>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Julien Desfossez <jdesfossez@efficios.com>
      Cc: Martin Liška <mliska@suse.cz>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Cc: Milian Wolff <milian.wolff@kdab.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Paul Turner <pjt@google.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Simon Que <sque@chromium.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Taeung Song <treeze.taeung@gmail.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/r/20170730095232.4j4xigsoqwufl5hu@gmail.comSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      a40f6177
  11. 19 Jul, 2017 2 commits
  12. 24 May, 2017 1 commit
    • Ingo Molnar's avatar
      tools/include: Sync kernel ABI headers with tooling headers · 6e30437b
      Ingo Molnar authored
      Sync (copy) the following v4.12 kernel headers to the tooling headers:
      
        arch/x86/include/asm/disabled-features.h:
        arch/x86/include/uapi/asm/kvm.h:
        arch/powerpc/include/uapi/asm/kvm.h:
        arch/s390/include/uapi/asm/kvm.h:
        arch/arm/include/uapi/asm/kvm.h:
        arch/arm64/include/uapi/asm/kvm.h:
      
         - 'struct kvm_sync_regs' got changed in an ABI-incompatible way,
           fortunately none of the (in-kernel) tooling relied on it
      
         - new KVM_DEV calls added
      
        arch/x86/include/asm/required-features.h:
      
         - 5-level paging hardware ABI detail added
      
        arch/x86/include/asm/cpufeatures.h:
      
         - new CPU feature added
      
        arch/x86/include/uapi/asm/vmx.h:
      
         - new VMX exit conditions
      
      None of the changes requires fixes in the tooling source code.
      
      This addresses the following warnings:
      
        Warning: include/uapi/linux/stat.h differs from kernel
        Warning: arch/x86/include/asm/disabled-features.h differs from kernel
        Warning: arch/x86/include/asm/required-features.h differs from kernel
        Warning: arch/x86/include/asm/cpufeatures.h differs from kernel
        Warning: arch/x86/include/uapi/asm/kvm.h differs from kernel
        Warning: arch/x86/include/uapi/asm/vmx.h differs from kernel
        Warning: arch/powerpc/include/uapi/asm/kvm.h differs from kernel
        Warning: arch/s390/include/uapi/asm/kvm.h differs from kernel
        Warning: arch/arm/include/uapi/asm/kvm.h differs from kernel
        Warning: arch/arm64/include/uapi/asm/kvm.h differs from kernel
      
      Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Milian Wolff <milian.wolff@kdab.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Yao Jin <yao.jin@linux.intel.com>
      Cc: kernel-team@lge.com
      Link: http://lkml.kernel.org/r/20170524065721.j2mlch6bgk5klgbc@gmail.comSigned-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      6e30437b
  13. 26 Apr, 2017 1 commit
  14. 24 Apr, 2017 2 commits
  15. 20 Mar, 2017 2 commits
  16. 17 Mar, 2017 1 commit
  17. 16 Mar, 2017 1 commit
  18. 03 Mar, 2017 2 commits
  19. 30 Jan, 2017 1 commit
    • Ingo Molnar's avatar
      tools headers: Sync {tools/,}arch/powerpc/include/uapi/asm/kvm.h,... · c0621acf
      Ingo Molnar authored
      tools headers: Sync {tools/,}arch/powerpc/include/uapi/asm/kvm.h, {tools/,}arch/x86/include/asm/cpufeatures.h and {tools/,}arch/arm/include/uapi/asm/kvm.h
      
      The following upstream headers were updated:
      
       - The x86 cpufeatures.h file picked up a couple of new feature entries
       - The PowerPC and ARM KVM headers picked up new features
      
      None of which requires changes to perf tooling, so refresh the tooling copy.
      
      Solves these build time warnings:
      
       Warning: arch/x86/include/asm/cpufeatures.h differs from kernel
       Warning: arch/powerpc/include/uapi/asm/kvm.h differs from kernel
       Warning: arch/arm/include/uapi/asm/kvm.h differs from kernel
      Signed-off-by: 's avatarIngo Molnar <mingo@kernel.org>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Link: http://lkml.kernel.org/r/20170130081131.GA8322@gmail.com
      [ resync tools/arch/x86/include/asm/cpufeatures.h ]
      Signed-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      c0621acf
  20. 16 Jan, 2017 1 commit
  21. 11 Jan, 2017 1 commit
    • Arnaldo Carvalho de Melo's avatar
      tools: Sync x86's vmx.h with the kernel · 675f52b2
      Arnaldo Carvalho de Melo authored
      To pick the changes from:
      
        1b07304c ("KVM: nVMX: support descriptor table exits")
      
      That adds entries to VMX_EXIT_REASONS, that is used by
      tools/perf/arch/x86/util/kvm-stat.c.
      
      This also picks the changes in:
      
        1dc35dac ("KVM: nVMX: check host CR3 on vmentry and vmexit")
      
      But these are not used in 'perf kvm stat', do it just to silence the
      kernel/tools file cache coherency detector:
      
        $ make -C tools/perf
        make: Entering directory '/home/acme/git/linux/tools/perf'
          BUILD:   Doing 'make -j4' parallel build
        Warning: arch/x86/include/uapi/asm/vmx.h differs from kernel
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Ladi Prosek <lprosek@redhat.com>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-56uowkk8t5zje49a42asffcy@git.kernel.orgSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      675f52b2
  22. 19 Oct, 2016 1 commit
    • Piotr Luc's avatar
      x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features · 82148993
      Piotr Luc authored
      AVX512_4VNNIW  - Vector instructions for deep learning enhanced word
      variable precision.
      AVX512_4FMAPS - Vector instructions for deep learning floating-point
      single precision.
      
      These new instructions are to be used in future Intel Xeon & Xeon Phi
      processors. The bits 2&3 of CPUID[level:0x07, EDX] inform that new
      instructions are supported by a processor.
      
      The spec can be found in the Intel Software Developer Manual (SDM) or in
      the Instruction Set Extensions Programming Reference (ISE).
      
      Define new feature flags to enumerate the new instructions in /proc/cpuinfo
      accordingly to CPUID bits and add the required xsave extensions which are
      required for proper operation.
      Signed-off-by: 's avatarPiotr Luc <piotr.luc@intel.com>
      Cc: Denys Vlasenko <dvlasenk@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Brian Gerst <brgerst@gmail.com>
      Cc: Dave Hansen <dave.hansen@intel.com>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Josh Poimboeuf <jpoimboe@redhat.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Link: http://lkml.kernel.org/r/20161018150111.29926-1-piotr.luc@intel.comSigned-off-by: 's avatarThomas Gleixner <tglx@linutronix.de>
      82148993
  23. 18 Oct, 2016 1 commit
  24. 05 Oct, 2016 2 commits
  25. 19 Sep, 2016 1 commit
    • Wang Nan's avatar
      tools include: Add mman macros needed by perf for all arch · f82b7746
      Wang Nan authored
      Some macros required by tools/perf/trace/beauty/mmap.c is not support
      for all architectures. For example, MAP_32BIT is defined on x86 only,
      alpha doesn't define MADV_HWPOISON and MADV_SOFT_OFFLINE.
      
      This patch regenerates mman.h for each arch, defines these missing
      macros for perf. For missing MADV_*, fall back to asm-generic/mman-common
      because they are in a 'case ...' statement. For flags, define it to 0.
      
      Following is the script to generate this patch:
      
       macros=`cat $0 | awk 'V==1 {print}; /^# start macro list/ {V=1}'`
       rm `find ./tools/arch/ -name mman.h`
       for arch in `ls tools/arch`
       do
         [ -d tools/arch/$arch/include/uapi/asm ] || mkdir -p tools/arch/$arch/include/uapi/asm
         src=arch/$arch/include/uapi/asm/mman.h
         target=tools/arch/$arch/include/uapi/asm/mman.h.tmp
         real_target=tools/arch/$arch/include/uapi/asm/mman.h
         guard="TOOLS_ARCH_"`echo $arch | awk '{print toupper($0)}'`_UAPI_ASM_MMAN_FIX_H
         rm -f $target
      
         [ -f $src ] &&
         for m in $macros
         do
           if grep '#define[ \t]*'$m $src > /dev/null 2>&1
           then
             grep -h '#define[ \t]*'$m $src | sed 's/[ \t]*\/\*.*$//g' >> $target
           fi
         done
      
         if [ -f $src ]
         then
            grep '#include <asm-generic' $src >> $target
         else
            echo "#include <asm-generic/mman.h>" >> $target
         fi
      
         touch $real_target
         for m in $macros
         do
           if cat << EOF | gcc -Itools/arch/$arch/include -Itools/arch/$arch/include/uapi -Iinclude/ -Iinclude/uapi -E - | grep $m > /dev/null 2>&1
       #include <uapi/asm/mman.h.tmp>
       #include <uapi/linux/mman.h>
       $m
       EOF
         then
           echo "Fixing $m for $arch"
           echo "/* $m is undefined on $arch, fix it for perf */" >> $target
           if echo $m | grep '^MADV_' > /dev/null 2>&1
           then
             grep -h '#define[ \t]*'$m include/uapi/asm-generic/mman-common.h | sed 's/[ \t]*\/\*.*$//g' >> $target
           else
             echo "#define $m	0" >> $target
           fi
         fi
         done
      
         real_target=tools/arch/$arch/include/uapi/asm/mman.h
         echo '#ifndef '$guard > $real_target
         echo '#define '$guard >> $real_target
         cat $target | sed 's|asm-generic|uapi/asm-generic|g' >> $real_target
         echo '#endif' >> $real_target
         rm $target
         echo "$real_target"
       done
      
       exit 0
       # Following macros are extracted from:
       # tools/perf/trace/beauty/mmap.c
       #
       # start macro list
       MADV_DODUMP
       MADV_DOFORK
       MADV_DONTDUMP
       MADV_DONTFORK
       MADV_DONTNEED
       MADV_FREE
       MADV_HUGEPAGE
       MADV_HWPOISON
       MADV_MERGEABLE
       MADV_NOHUGEPAGE
       MADV_NORMAL
       MADV_RANDOM
       MADV_REMOVE
       MADV_SEQUENTIAL
       MADV_SOFT_OFFLINE
       MADV_UNMERGEABLE
       MADV_WILLNEED
       MAP_32BIT
       MAP_ANONYMOUS
       MAP_DENYWRITE
       MAP_EXECUTABLE
       MAP_FILE
       MAP_FIXED
       MAP_GROWSDOWN
       MAP_HUGETLB
       MAP_LOCKED
       MAP_NONBLOCK
       MAP_NORESERVE
       MAP_POPULATE
       MAP_PRIVATE
       MAP_SHARED
       MAP_STACK
       MAP_UNINITIALIZED
       MREMAP_FIXED
       MREMAP_MAYMOVE
       PROT_EXEC
       PROT_GROWSDOWN
       PROT_GROWSUP
       PROT_NONE
       PROT_READ
       PROT_SEM
       PROT_WRITE
      Signed-off-by: 's avatarWang Nan <wangnan0@huawei.com>
      Tested-by: 's avatarKim Phillips <kim.phillips@arm.com>
      Tested-by: 's avatarNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
      Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
      Cc: Zefan Li <lizefan@huawei.com>
      Cc: pi3orama@163.com
      Fixes: 277cf08f ("perf trace beauty mmap: Fix defines for non !x86_64")
      Link: http://lkml.kernel.org/r/1473850649-83389-3-git-send-email-wangnan0@huawei.comSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      f82b7746
  26. 13 Sep, 2016 1 commit
    • Wang Nan's avatar
      tools include: Add uapi mman.h for each architecture · f3539c12
      Wang Nan authored
      Some mmap related macros have different values for different
      architectures. This patch introduces uapi mman.h for each
      architectures.
      
      Three headers are cloned from kernel include to tools/include:
      
       tools/include/uapi/asm-generic/mman-common.h
       tools/include/uapi/asm-generic/mman.h
       tools/include/uapi/linux/mman.h
      
      The main part of this patch is generated by following script:
      
       macros=`cat $0 | awk 'V==1 {print}; /^# start macro list/ {V=1}'`
       for arch in `ls tools/arch`
       do
         [ -d tools/arch/$arch/include/uapi/asm ] || mkdir -p tools/arch/$arch/include/uapi/asm
         src=arch/$arch/include/uapi/asm/mman.h
         target=tools/arch/$arch/include/uapi/asm/mman.h
         guard="TOOLS_ARCH_"`echo $arch | awk '{print toupper($0)}'`_UAPI_ASM_MMAN_FIX_H
         echo '#ifndef '$guard > $target
         echo '#define '$guard >> $target
      
         [ -f $src ] &&
         for m in $macros
         do
           if grep '#define[ \t]*'$m $src > /dev/null 2>&1
           then
             grep -h '#define[ \t]*'$m $src | sed 's/[ \t]*\/\*.*$//g' >> $target
           fi
         done
      
         if [ -f $src ]
         then
            grep '#include <asm-generic' $src >> $target
         else
            echo "#include <asm-generic/mman.h>" >> $target
         fi
         echo '#endif' >> $target
         echo "$target"
       done
      
       exit 0
       # Following macros are extracted from:
       # tools/perf/trace/beauty/mmap.c
       #
       # start macro list
       MADV_DODUMP
       MADV_DOFORK
       MADV_DONTDUMP
       MADV_DONTFORK
       MADV_DONTNEED
       MADV_HUGEPAGE
       MADV_HWPOISON
       MADV_MERGEABLE
       MADV_NOHUGEPAGE
       MADV_NORMAL
       MADV_RANDOM
       MADV_REMOVE
       MADV_SEQUENTIAL
       MADV_SOFT_OFFLINE
       MADV_UNMERGEABLE
       MADV_WILLNEED
       MAP_32BIT
       MAP_ANONYMOUS
       MAP_DENYWRITE
       MAP_EXECUTABLE
       MAP_FILE
       MAP_FIXED
       MAP_GROWSDOWN
       MAP_HUGETLB
       MAP_LOCKED
       MAP_NONBLOCK
       MAP_NORESERVE
       MAP_POPULATE
       MAP_PRIVATE
       MAP_SHARED
       MAP_STACK
       MAP_UNINITIALIZED
       MREMAP_FIXED
       MREMAP_MAYMOVE
       PROT_EXEC
       PROT_GROWSDOWN
       PROT_GROWSUP
       PROT_NONE
       PROT_READ
       PROT_SEM
       PROT_WRITE
      Signed-off-by: 's avatarWang Nan <wangnan0@huawei.com>
      Cc: Zefan Li <lizefan@huawei.com>
      Cc: pi3orama@163.com
      Link: http://lkml.kernel.org/r/1473684871-209320-2-git-send-email-wangnan0@huawei.com
      [ Added new files to tools/perf/MANIFEST to fix the detached tarball build, add mman.h for ARC ]
      Signed-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      f3539c12
  27. 15 Aug, 2016 1 commit
    • Arnaldo Carvalho de Melo's avatar
      tools: Sync kvm related header files for arm64 and s390 · 9f315690
      Arnaldo Carvalho de Melo authored
      From a quick look nothing stands out as requiring changes to kvm tools
      such as tools/perf/arch/s390/util/kvm-stat.c.
      
      Silences these header checking warnings:
      
        $ make -C tools/perf
        make: Entering directory '/home/acme/git/linux/tools/perf'
          BUILD:   Doing 'make -j4' parallel build
        Warning: tools/arch/s390/include/uapi/asm/kvm.h differs from kernel
        Warning: tools/arch/s390/include/uapi/asm/sie.h differs from kernel
        Warning: tools/arch/arm64/include/uapi/asm/kvm.h differs from kernel
        <SNIP>
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
      Cc: Scott  Wood <scottwood@freescale.com>
      Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-btutge414g516qmh6r5ienlj@git.kernel.orgSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      9f315690
  28. 09 Aug, 2016 2 commits
    • Arnaldo Carvalho de Melo's avatar
      tools: Sync cpufeatures headers with the kernel · 840b49ba
      Arnaldo Carvalho de Melo authored
      Due to:
      
        1e61f78b ("x86/cpufeature: Make sure DISABLED/REQUIRED macros are updated")
      
      No changes to tools using those headers (tools/arch/x86/lib/mem{set,cpu}_64.S)
      seems necessary.
      
      Detected by the tools build header drift checker:
      
        $ make -C tools/perf O=/tmp/build/perf
        make: Entering directory '/home/acme/git/linux/tools/perf'
          BUILD:   Doing 'make -j4' parallel build
          GEN      /tmp/build/perf/common-cmds.h
        Warning: tools/arch/x86/include/asm/disabled-features.h differs from kernel
        Warning: tools/arch/x86/include/asm/required-features.h differs from kernel
        Warning: tools/arch/x86/include/asm/cpufeatures.h differs from kernel
          CC       /tmp/build/perf/util/probe-finder.o
          CC       /tmp/build/perf/builtin-help.o
        <SNIP>
        ^C$
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Wang Nan <wangnan0@huawei.com>
      Link: http://lkml.kernel.org/n/tip-ja75m7zk8j0jkzmrv16i5ehw@git.kernel.orgSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      840b49ba
    • Arnaldo Carvalho de Melo's avatar
      tools: Sync cpufeatures.h and vmx.h with the kernel · bebfb730
      Arnaldo Carvalho de Melo authored
      There were changes related to the deprecation of the "pcommit"
      instruction:
      
        fd1d961d ("x86/insn: remove pcommit")
        dfa169bb ("Revert "KVM: x86: add pcommit support"")
      
      No need to update anything in the tools, as "pcommit" wasn't being
      listed on the VMX_EXIT_REASONS in the tools/perf/arch/x86/util/kvm-stat.c
      file.
      
      Just grab fresh copies of these files to silence the file cache
      coherency detector:
      
        $ make -C tools/perf O=/tmp/build/perf install-bin
        make: Entering directory '/home/acme/git/linux/tools/perf'
          BUILD:   Doing 'make -j4' parallel build
        Warning: tools/arch/x86/include/asm/cpufeatures.h differs from kernel
        Warning: tools/arch/x86/include/uapi/asm/vmx.h differs from kernel
          INSTALL  GTK UI
        <SNIP>
        #
      
      Cc: Adrian Hunter <adrian.hunter@intel.com>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@kernel.org>
      Cc: Namhyung Kim <namhyung@kernel.org>
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
      Cc: Wang Nan <wangnan0@huawei.com>
      Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com>
      Link: http://lkml.kernel.org/n/tip-07pmcc1ysydhyyxbmp1vt0l4@git.kernel.orgSigned-off-by: 's avatarArnaldo Carvalho de Melo <acme@redhat.com>
      bebfb730
  29. 12 Jul, 2016 3 commits