kernel/linux.git/tools/perf/arch/arm64, branch v6.3

perf pmu-events: Introduce pmu_metrics_table

2023-02-03T16:54:21+00:00

Add a metrics table that is just a cast from pmu_events_table. This changes the APIs so that event and metric usage of the underlying table is different. For the no jevents case the tables are already separate, later changes will separate the tables for the jevents case. Reviewed-by: Kajol Jain Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Caleb Biggers Cc: Florian Fischer Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jing Zhang Cc: Jiri Olsa Cc: John Garry Cc: Kan Liang Cc: Kang Minchul Cc: Kim Phillips Cc: Leo Yan Cc: Mark Rutland Cc: Mike Leach Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Rob Herring Cc: Sandipan Das Cc: Stephane Eranian Cc: Will Deacon Cc: Xing Zhengjun Cc: linux-arm-kernel@lists.infradead.org Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20230126233645.200509-10-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf pmu-events: Separate the metrics from events for no jevents

2023-02-03T16:53:52+00:00

Separate the event and metric table when building without jevents. Add find_core_metrics_table and perf_pmu__find_metrics_table while renaming existing utilities to be event specific, so that users can find the right table for their need. Committer notes: Fix the build on aarch64 with: tools/perf/arch/arm64/util/pmu.c @@ -32,7 +32,7 @@ const struct pmu_events_table *pmu_events_table__find(void) - return perf_pmu__find_table(pmu); + return perf_pmu__find_events_table(pmu); Reviewed-by: John Garry Reviewed-by: Kajol Jain Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Caleb Biggers Cc: Florian Fischer Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jing Zhang Cc: Jiri Olsa Cc: Kan Liang Cc: Kang Minchul Cc: Kim Phillips Cc: Leo Yan Cc: Mark Rutland Cc: Mike Leach Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Rob Herring Cc: Sandipan Das Cc: Stephane Eranian Cc: Will Deacon Cc: Xing Zhengjun Cc: linux-arm-kernel@lists.infradead.org Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20230126233645.200509-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf pmu: Remove duplication around EVENT_SOURCE_DEVICE_PATH

2023-01-22T21:17:27+00:00

The pattern for accessing EVENT_SOURCE_DEVICE_PATH is duplicated in a few places, so add two utility functions to cover it. Also just use perf_pmu__scan_file() instead of pmu_type() which already does the same thing. No functional changes. Reviewed-by: Leo Yan Signed-off-by: James Clark Acked-by: Suzuki Poulouse Tested-by: Tanmay Jagdale Cc: Alexander Shishkin Cc: Bharat Bhushan Cc: George Cherian Cc: Ingo Molnar Cc: Jiri Olsa Cc: John Garry Cc: Linu Cherian Cc: Mark Rutland Cc: Mathieu Poirier Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Sunil Kovvuri Goutham Cc: Will Deacon Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230120143702.4035046-2-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo

perf pmu: Add #slots literal support for arm64

2023-01-19T12:38:55+00:00

The slots in each architecture may be different, so add #slots literal to obtain the slots of different architectures, and the #slots can be applied in the metric. Currently, The #slots just support for arm64, and other architectures will return NAN. On arm64, the value of slots is from the register PMMIR_EL1.SLOT, which I can read in /sys/bus/event_source/device/armv8_pmuv3_*/caps/slots. PMMIR_EL1.SLOT might read as zero if the PMU version is lower than ID_AA64DFR0_EL1_PMUVer_V3P4 or the STALL_SLOT event is not implemented. Reviewed-by: John Garry Signed-off-by: Jing Zhang Cc: Alexander Shishkin Cc: Andrew Kilroy Cc: Ian Rogers Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Leo Yan Cc: Mark Rutland Cc: Mike Leach Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Shuai Xue Cc: Will Deacon Cc: Xing Zhengjun Cc: Zhuo Song Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/1673940573-90503-2-git-send-email-renyu.zj@linux.alibaba.com Signed-off-by: Arnaldo Carvalho de Melo

perf arm64: Simplify mksyscalltbl

2022-12-21T20:13:31+00:00

This patch isn't intended to have any effect on the compiled code. It just removes one level of indirection: calling the *host* compiler to build and then run a program that just printf:s the numerical entries of the syscall-table. In other words, the generated syscalls.c changes from: [46] = "ftruncate", to: [__NR3264_ftruncate] = "ftruncate", The latter is as good as the former to the user of perf, and this can be done directly by the shell-script. The syscalls defined as non-literal values (like "#define __NR_ftruncate __NR3264_ftruncate") are trivially resolved at compile-time without namespace-leaking and/or collision for its sole user, perf/util/syscalltbl.c, that just #includes the generated file. A future "-mabi=32" support would probably have to handle this differently, but that is a pre-existing problem not affected by this simplification. Calling the *host* compiler only complicates things and accidentally can get a completely wrong set of files and syscall numbers, see earlier commits. Note that the script parameter hostcc is now unused. At the time of this patch, powerpc (the origin, see comments), and also e.g. x86 has moved on, from filtering "gcc -dM -E" output to reading separate specific text-file, a table of syscall numbers. IMHO should arm64 consider adopting this. Signed-off-by: Hans-Peter Nilsson Cc: Alexander Shishkin Reviewed-by: Leo Yan Tested-by: Leo Yan Acked-by: Arnd Bergmann Cc: Ingo Molnar Cc: Jiri Olsa Cc: John Garry Cc: Kim Phillips Cc: Leo Yan Cc: Mark Rutland Cc: Mathieu Poirier Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20201228024159.2BB66203B5@pchp3.se.axis.com Signed-off-by: Arnaldo Carvalho de Melo

perf build: Use libtraceevent from the system

2022-12-14T14:16:12+00:00

Remove the LIBTRACEEVENT_DYNAMIC and LIBTRACEFS_DYNAMIC make command line variables. If libtraceevent isn't installed or NO_LIBTRACEEVENT=1 is passed to the build, don't compile in libtraceevent and libtracefs support. This also disables CONFIG_TRACE that controls "perf trace". CONFIG_LIBTRACEEVENT is used to control enablement in Build/Makefiles, HAVE_LIBTRACEEVENT is used in C code. Without HAVE_LIBTRACEEVENT tracepoints are disabled and as such the commands kmem, kwork, lock, sched and timechart are removed. The majority of commands continue to work including "perf test". Committer notes: Fixed up a tools/perf/util/Build reject and added: #include to tools/perf/util/scripting-engines/trace-event-perl.c. Committer testing: $ rpm -qi libtraceevent-devel Name : libtraceevent-devel Version : 1.5.3 Release : 2.fc36 Architecture: x86_64 Install Date: Mon 25 Jul 2022 03:20:19 PM -03 Group : Unspecified Size : 27728 License : LGPLv2+ and GPLv2+ Signature : RSA/SHA256, Fri 15 Apr 2022 02:11:58 PM -03, Key ID 999f7cbf38ab71f4 Source RPM : libtraceevent-1.5.3-2.fc36.src.rpm Build Date : Fri 15 Apr 2022 10:57:01 AM -03 Build Host : buildvm-x86-05.iad2.fedoraproject.org Packager : Fedora Project Vendor : Fedora Project URL : https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ Bug URL : https://bugz.fedoraproject.org/libtraceevent Summary : Development headers of libtraceevent Description : Development headers of libtraceevent-libs $ Default build: $ ldd ~/bin/perf | grep tracee libtraceevent.so.1 => /lib64/libtraceevent.so.1 (0x00007f1dcaf8f000) $ # perf trace -e sched:* --max-events 10 0.000 migration/0/17 sched:sched_migrate_task(comm: "", pid: 1603763 (perf), prio: 120, dest_cpu: 1) 0.005 migration/0/17 sched:sched_wake_idle_without_ipi(cpu: 1) 0.011 migration/0/17 sched:sched_switch(prev_comm: "", prev_pid: 17 (migration/0), prev_state: 1, next_comm: "", next_prio: 120) 1.173 :0/0 sched:sched_wakeup(comm: "", pid: 3138 (gnome-terminal-), prio: 120) 1.180 :0/0 sched:sched_switch(prev_comm: "", prev_prio: 120, next_comm: "", next_pid: 3138 (gnome-terminal-), next_prio: 120) 0.156 migration/1/21 sched:sched_migrate_task(comm: "", pid: 1603763 (perf), prio: 120, orig_cpu: 1, dest_cpu: 2) 0.160 migration/1/21 sched:sched_wake_idle_without_ipi(cpu: 2) 0.166 migration/1/21 sched:sched_switch(prev_comm: "", prev_pid: 21 (migration/1), prev_state: 1, next_comm: "", next_prio: 120) 1.183 :0/0 sched:sched_wakeup(comm: "", pid: 1602985 (kworker/u16:0-f), prio: 120, target_cpu: 1) 1.186 :0/0 sched:sched_switch(prev_comm: "", prev_prio: 120, next_comm: "", next_pid: 1602985 (kworker/u16:0-f), next_prio: 120) # Had to tweak tools/perf/util/setup.py to make sure the python binding shared object links with libtraceevent if -DHAVE_LIBTRACEEVENT is present in CFLAGS. Building with NO_LIBTRACEEVENT=1 uncovered some more build failures: - Make building of data-convert-bt.c to CONFIG_LIBTRACEEVENT=y - perf-$(CONFIG_LIBTRACEEVENT) += scripts/ - bpf_kwork.o needs also to be dependent on CONFIG_LIBTRACEEVENT=y - The python binding needed some fixups and util/trace-event.c can't be built and linked with the python binding shared object, so remove it in tools/perf/util/setup.py and exclude it from the list of dependencies in the python/perf.so Makefile.perf target. Building without libtraceevent-devel installed uncovered more build failures: - The python binding tools/perf/util/python.c was assuming that traceevent/parse-events.h was always available, which was the case when we defaulted to using the in-kernel tools/lib/traceevent/ files, now we need to enclose it under ifdef HAVE_LIBTRACEEVENT, just like the other parts of it that deal with tracepoints. - We have to ifdef the rules in the Build files with CONFIG_LIBTRACEEVENT=y to build builtin-trace.c and tools/perf/trace/beauty/ as we only ifdef setting CONFIG_TRACE=y when setting NO_LIBTRACEEVENT=1 in the make command line, not when we don't detect libtraceevent-devel installed in the system. Simplification here to avoid these two ways of disabling builtin-trace.c and not having CONFIG_TRACE=y when libtraceevent-devel isn't installed is the clean way. From Athira: tools/perf/arch/powerpc/util/Build -perf-y += kvm-stat.o +perf-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o Then, ditto for arm64 and s390, detected by container cross build tests. - s/390 uses test__checkevent_tracepoint() that is now only available if HAVE_LIBTRACEEVENT is defined, enclose the callsite with ifder HAVE_LIBTRACEEVENT. Also from Athira: With this change, I could successfully compile in these environment: - Without libtraceevent-devel installed - With libtraceevent-devel installed - With “make NO_LIBTRACEEVENT=1” Then, finally rename CONFIG_TRACEEVENT to CONFIG_LIBTRACEEVENT for consistency with other libraries detected in tools/perf/. Signed-off-by: Ian Rogers Tested-by: Arnaldo Carvalho de Melo Tested-by: Athira Rajeev Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Nick Desaulniers Cc: Peter Zijlstra Cc: Stephane Eranian Cc: bpf@vger.kernel.org Link: http://lore.kernel.org/lkml/20221205225940.3079667-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf arm64: Fix mksyscalltbl, don't lose syscalls due to sort -nu

2022-12-05T12:29:21+00:00

When using "sort -nu", arm64 syscalls were lost. That is, the io_setup syscall (number 0) and all but one (typically ftruncate; 64) of the syscalls that are defined symbolically (like "#define __NR_ftruncate __NR3264_ftruncate") at the point where "sort" is applied. This creation-of-syscalls.c-scheme is, judging from comments, copy-pasted from powerpc, and worked there because at the time, its tools/arch/powerpc/include/uapi/asm/unistd.h had *literals*, like "#define __NR_ftruncate 93". With sort being numeric and the non-numeric key effectively evaluating to 0, the sort option "-u" means these "duplicates" are removed. There's no need to remove syscall lines with duplicate numbers for arm64 because there are none, so let's fix that by just losing the "-u". Having the table numerically sorted on syscall-number for the rest of the syscalls looks nice, so keep the "-n". Reviewed-by: Leo Yan Signed-off-by: Hans-Peter Nilsson Tested-by: Leo Yan Acked-by: Arnd Bergmann Cc: Alexander Shishkin Cc: Ingo Molnar Cc: Jiri Olsa Cc: John Garry Cc: Kim Phillips Cc: Leo Yan Cc: Mark Rutland Cc: Mathieu Poirier Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20201228023941.E0DE2203B5@pchp3.se.axis.com Signed-off-by: Arnaldo Carvalho de Melo

perf cpumap: Tidy libperf includes

2022-11-16T19:00:45+00:00

Use public API when possible, don't include internal API in header files in evsel.h. Fix any related breakages. Committer note: There was one missing case, when building for arm64: arch/arm64/util/pmu.c: In function 'pmu_events_table__find': arch/arm64/util/pmu.c:18:30: error: invalid use of undefined type 'struct perf_cpu_map' 18 | if (pmu->cpus->nr != cpu__max_cpu().cpu) | ^~ Fix it by adding one more exception, including Signed-off-by: Ian Rogers Acked-by: Namhyung Kim Cc: Alexander Shishkin Cc: Andrii Nakryiko Cc: Jiri Olsa Cc: Mark Rutland Cc: Masahiro Yamada Cc: Nick Desaulniers Cc: Nicolas Schier Cc: Peter Zijlstra Cc: Stephane Eranian Cc: bpf@vger.kernel.org Link: http://lore.kernel.org/lkml/20221109184914.1357295-14-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move 'struct perf_sample' to a separate header file to disentangle headers

2022-10-31T14:06:41+00:00

Some places were including event.h just to get 'struct perf_sample', move it to a separate place so that we speed up a bit the build. Signed-off-by: Arnaldo Carvalho de Melo

perf auxtrace arm64: Add support for HiSilicon PCIe Tune and Trace device driver

2022-10-15T13:13:16+00:00

HiSilicon PCIe tune and trace device (PTT) could dynamically tune the PCIe link's events, and trace the TLP headers). This patch add support for PTT device in perf tool, so users could use 'perf record' to get TLP headers trace data. Reviewed-by: Leo Yan Signed-off-by: Qi Liu Signed-off-by: Yicong Yang Acked-by: John Garry Cc: Alexander Shishkin Cc: Bjorn Helgaas Cc: Greg Kroah-Hartman Cc: Ingo Molnar Cc: James Clark Cc: Jonathan Cameron Cc: Lorenzo Pieralisi Cc: Mark Rutland Cc: Mathieu Poirier Cc: Mike Leach Cc: Peter Zijlstra Cc: Qi Liu Cc: Shameerali Kolothum Thodi Cc: Shaokun Zhang Cc: Suzuki Poulouse Cc: Will Deacon Cc: Zeng Prime Cc: linux-arm-kernel@lists.infradead.org Cc: linux-pci@vger.kernel.org Cc: linuxarm@huawei.com Link: https://lore.kernel.org/r/20220927081400.14364-3-yangyicong@huawei.com Signed-off-by: Arnaldo Carvalho de Melo