linux-stable.git/tools/arch, branch v4.18.2

tools headers: Synchronise x86 cpufeatures.h for L1TF additions

2018-08-15T15:37:34+00:00

commit e24f14b0ff985f3e09e573ba1134bfdf42987e05 upstream.

Signed-off-by: David Woodhouse 
Signed-off-by: Greg Kroah-Hartman

tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'

2018-07-30T15:36:51+00:00

To cope with the changes in:

  12c89130a56a ("x86/asm/memcpy_mcsafe: Add write-protection-fault handling")
  60622d68227d ("x86/asm/memcpy_mcsafe: Return bytes remaining")
  bd131544aa7e ("x86/asm/memcpy_mcsafe: Add labels for __memcpy_mcsafe() write fault handling")
  da7bc9c57eb0 ("x86/asm/memcpy_mcsafe: Remove loop unrolling")

This needed introducing a file with a copy of the mcsafe_handle_tail()
function, that is used in the new memcpy_64.S file, as well as a dummy
mcsafe_test.h header.

Testing it:

  $ nm ~/bin/perf | grep mcsafe
  0000000000484130 T mcsafe_handle_tail
  0000000000484300 T __memcpy_mcsafe
  $
  $ perf bench mem memcpy
  # Running 'mem/memcpy' benchmark:
  # function 'default' (Default memcpy() provided by glibc)
  # Copying 1MB bytes ...

      44.389205 GB/sec
  # function 'x86-64-unrolled' (unrolled memcpy() in arch/x86/lib/memcpy_64.S)
  # Copying 1MB bytes ...

      22.710756 GB/sec
  # function 'x86-64-movsq' (movsq-based memcpy() in arch/x86/lib/memcpy_64.S)
  # Copying 1MB bytes ...

      42.459239 GB/sec
  # function 'x86-64-movsb' (movsb-based memcpy() in arch/x86/lib/memcpy_64.S)
  # Copying 1MB bytes ...

      42.459239 GB/sec
  $

This silences this perf tools build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S'

Cc: Adrian Hunter 
Cc: Dan Williams 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Mika Penttilä 
Cc: Namhyung Kim 
Cc: Tony Luck 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-igdpciheradk3gb3qqal52d0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers powerpc: Update asm/unistd.h copy to pick new

2018-07-30T14:51:13+00:00

The new 'io_pgetevents' syscall was wired up in PowerPC in the following
cset:

  b2f82565f2ca ("powerpc: Wire up io_pgetevents")

Update tools/arch/powerpc/ copy of the asm/unistd.h file so that 'perf
trace' on PowerPC gets it in its syscall table.

This elliminated the following perf build warning:

  Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/unistd.h' differs from latest version at 'arch/powerpc/include/uapi/asm/unistd.h'

Cc: Alexander Shishkin 
Cc: Breno Leitao 
Cc: Hendrik Brueckner 
Cc: Jiri Olsa 
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman 
Cc: Namhyung Kim 
Cc: Ravi Bangoria 
Cc: Thomas Richter 
Link: https://lkml.kernel.org/n/tip-9uvu7tz4ud3bxxfyxwryuz47@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools/headers: Pick up latest kernel ABIs

2018-06-26T06:43:14+00:00

Sync KVM ABI additions and x86 CPU features additions - neither of which
has any impact on the tooling build.

Cc: Arnaldo Carvalho de Melo 
Cc: Peter Zijlstra 
Cc: Namhyung Kim 
Cc: Jiri Olsa 
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar

tools include powerpc: Update arch/powerpc/include/uapi/asm/unistd.h copy to get 'rseq' syscall

2018-06-25T14:59:36+00:00

This updates the tools/perf/ copy of the powerpc file used to generate
the syscall table file used to make 'perf trace' become aware of the new
'rseq' syscall, no matter in which system it gets built, i.e. older
systems where the syscalls are not available in the running kernel (via
tracefs) or in the system headers will still be aware of these
syscalls/.

From this commit:

  bb862b021d75 ("powerpc: Wire up restartable sequences system call")

Silencing this tools/perf build warning:

  Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/unistd.h' differs from latest version at 'arch/powerpc/include/uapi/asm/unistd.h'

Cc: Adrian Hunter 
Cc: Alexander Shishkin 
Cc: Boqun Feng 
Cc: David Ahern 
Cc: Hendrik Brueckner 
Cc: Jiri Olsa 
Cc: Mathieu Desnoyers 
Cc: Michael Ellerman 
Cc: Namhyung Kim 
Cc: Ravi Bangoria 
Cc: Thomas Gleixner 
Cc: Thomas Richter 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-adtgz6u3apd76tghiu9w0k19@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers: Sync x86 cpufeatures.h with the kernel sources

2018-06-01T19:13:16+00:00

To pick up changes found in these csets:

 11fb0683493b x86/speculation: Add virtualized speculative store bypass disable support
 d1035d971829 x86/cpufeatures: Add FEATURE_ZEN
 52817587e706 x86/cpufeatures: Disentangle SSBD enumeration
 7eb8956a7fec x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
 e7c587da1252 x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
 9f65fb29374e x86/bugs: Rename _RDS to _SSBD
 764f3c21588a x86/bugs/AMD: Add support to disable RDS on Fam[15,16,17]h if requested
 24f7fc83b920 x86/bugs: Provide boot parameters for the spec_store_bypass_disable mitigation
 0cc5fa00b0a8 x86/cpufeatures: Add X86_FEATURE_RDS
 c456442cd3a5 x86/bugs: Expose /sys/../spec_store_bypass

The usage of this file in tools doesn't use the newly added X86_FEATURE_
defines:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o
  LD       /tmp/build/perf/bench/perf-in.o
  LD       /tmp/build/perf/perf-in.o

Silencing this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'

Cc: Adrian Hunter 
Cc: Borislav Petkov 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Konrad Rzeszutek Wilk 
Cc: Namhyung Kim 
Cc: Thomas Gleixner 
Cc: Tom Lendacky 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-mrwyauyov8c7s048abg26khg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers kvm: Sync ARM UAPI headers with the kernel sources

2018-05-07T18:23:46+00:00

To sync with the changes made in 85bd0ba1ff98 ("arm/arm64: KVM: Add PSCI
version selection API"), that do not cause any changes in the tools,
just to silence the build warning:

  Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h'
  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Marc Zyngier 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-7u37pv09xtvet1ll27840w73@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools headers: Sync x86 cpufeatures.h with the kernel sources

2018-05-07T18:23:45+00:00

The 912413057395 ("x86/cpufeatures: Enumerate cldemote instruction")
doesn't requires changes in the tools, just copy it to silence this
warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Fenghua Yu 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: https://lkml.kernel.org/n/tip-1vo20y5z2drlujfpltjudwk8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools/headers: Synchronize kernel ABI headers, v4.17-rc1

2018-04-17T12:47:39+00:00

Sync the following tooling headers with the latest kernel version:

  tools/arch/arm/include/uapi/asm/kvm.h
    - New ABI: KVM_REG_ARM_*

  tools/arch/x86/include/asm/required-features.h
    - Removal of NEED_LA57 dependency

  tools/arch/x86/include/uapi/asm/kvm.h
    - New KVM ABI: KVM_SYNC_X86_*

  tools/include/uapi/asm-generic/mman-common.h
    - New ABI: MAP_FIXED_NOREPLACE flag

  tools/include/uapi/linux/bpf.h
    - New ABI: BPF_F_SEQ_NUMBER functions

  tools/include/uapi/linux/if_link.h
    - New ABI: IFLA tun and rmnet support

  tools/include/uapi/linux/kvm.h
    - New ABI: hyperv eventfd and CONN_ID_MASK support plus header cleanups

  tools/include/uapi/sound/asound.h
    - New ABI: SNDRV_PCM_FORMAT_FIRST PCM format specifier

  tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
    - The x86 system call table description changed due to the ptregs changes and the renames, in:

	d5a00528b58c: syscalls/core, syscalls/x86: Rename struct pt_regs-based sys_*() to __x64_sys_*()
	5ac9efa3c50d: syscalls/core, syscalls/x86: Clean up compat syscall stub naming convention
	ebeb8c82ffaf: syscalls/x86: Use 'struct pt_regs' based syscall calling for IA32_EMULATION and x32

Also fix the x86 syscall table warning:

  -Warning: Kernel ABI header at 'tools/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
  +Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'

None of these changes impact existing tooling code, so we only have to copy the kernel version.

Signed-off-by: Ingo Molnar 
Cc: Adrian Hunter 
Cc: Alexander Potapenko 
Cc: Alexander Shishkin 
Cc: Alexei Starovoitov 
Cc: Alexey Budankov 
Cc: Andi Kleen 
Cc: Andrey Ryabinin 
Cc: Andy Lutomirski 
Cc: Arnd Bergmann 
Cc: Brian Robbins 
Cc: Clark Williams 
Cc: Daniel Borkmann 
Cc: David Ahern 
Cc: Dmitriy Vyukov  
Cc: Heiko Carstens 
Cc: Hendrik Brueckner 
Cc: Jesper Dangaard Brouer 
Cc: Jin Yao 
Cc: Jiri Olsa 
Cc: Josh Poimboeuf 
Cc: Kan Liang 
Cc: Kim Phillips 
Cc: Linus Torvalds 
Cc: Li Zhijian 
Cc: Mark Rutland 
Cc: Martin Liška 
Cc: Martin Schwidefsky 
Cc: Matthias Kaehlcke 
Cc: Miguel Bernal Marin 
Cc: Namhyung Kim 
Cc: Naveen N. Rao 
Cc: Peter Zijlstra 
Cc: Ravi Bangoria 
Cc: Sandipan Das 
Cc: Stephane Eranian 
Cc: Stephen Rothwell 
Cc: Takuya Yamamoto 
Cc: Thomas Gleixner 
Cc: Thomas Richter 
Cc: Wang Nan 
Cc: William Cohen 
Cc: Yonghong Song 
Link: http://lkml.kernel.org/r/20180416064024.ofjtrz5yuu3ykhvl@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo

Merge tag 'perf-core-for-mingo-4.17-20180403' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

2018-04-04T05:23:52+00:00

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

- Show only failing syscalls with 'perf trace --failure' (Arnaldo Carvalho de Melo)

	e.g: See what 'openat' syscalls are failing:

  # perf trace --failure -e openat
   762.323 ( 0.007 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video2) = -1 ENOENT No such file or directory
   
   790.228 ( 0.008 ms): VideoCapture/4566 openat(dfd: CWD, filename: /dev/video63) = -1 ENOENT No such file or directory
  ^C#

- Show information about the event (freq, nr_samples, total period/nr_events) in
  the annotate --tui and --stdio2 'perf annotate' output, similar to the
  first line in the 'perf report --tui', but just for the samples for a
  the annotated symbol (Arnaldo Carvalho de Melo)

- Introduce 'perf version --build-options' to show what features were
  linked, aliased as well as a shorter 'perf -vv' (Jin Yao)

- Add a "dso_size" sort order (Kim Phillips)

- Remove redundant ')' in the tracepoint output in 'perf trace' (Changbin Du)

- Synchronize x86's cpufeatures.h, no effect on toolss (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: Ingo Molnar