- Sep 23, 2016
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Jiri Olsa authored
Will be used from external places in the upcoming c2c patch series. 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/1474558645-19956-10-git-send-email-jolsa@kernel.org Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Jiri Olsa authored
Will be used from external places in the upcoming c2c patch series. Signed-off-by:
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Jiri Olsa authored
Will be used from external places in the upcoming c2c patch series. Signed-off-by:
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Jiri Olsa authored
Will be used from external places in the upcoming c2c patch series. Signed-off-by:
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Jiri Olsa authored
Will be used from external places in the upcoming c2c patch series. Signed-off-by:
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Jiri Olsa authored
Will be used from external places in the upcoming c2c patch series. Signed-off-by:
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Jiri Olsa authored
Add __hist_entry__snprintf() to take a perf_hpp_list as an argument instead of using he->hists->hpp_list. This way we can display arbitrary list of entries regardless of the hists setup, which will be useful in the upcoming c2c patch series. Signed-off-by:
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Mathieu Poirier authored
Using the PMU::set_drv_config() callback to enable the CoreSight sink that will be used for the trace session. Signed-off-by:
Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by:
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Mathieu Poirier authored
Now that the required mechanic is there to deal with PMU specific configuration, add the functionality to the tools where events can be selected. Signed-off-by:
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- Sep 22, 2016
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Mathieu Poirier authored
This patch adds a PMU callback and the required mechanic so that drivers can process the command line configuration elements found in evsel::config_terms. Signed-off-by:
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Mathieu Poirier authored
Coresight ETMs are IP blocks used to perform HW assisted tracing on a CPU core. This patch introduce the required auxiliary API functions allowing the perf core to interact with a tracer. Signed-off-by:
Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1474041004-13956-4-git-send-email-mathieu.poirier@linaro.org Signed-off-by:
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Mathieu Poirier authored
Adding the required mechanic allowing 'perf list pmu' to discover coresight ETM/PTM tracers. Signed-off-by:
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Mathieu Poirier authored
The __get_cpuid() test is only valid when compiling for x86. When compiling for other architectures like ARM/ARM64 the test fails event if the functionality is not required. This patch isolate the build-in feature check to x86 platform, allowing the compilation and usage of PMUs that use the AUXTRACE infrastructure on other architectures (i.e ARM CoreSight). Signed-off-by:
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- Sep 21, 2016
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Jiri Olsa authored
With node column on big CPUs servers we can run out of stdio header space quite soon. Enlarging header buffer. Signed-off-by:
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Jiri Olsa authored
Removing superfluous initialization of weight, it's already set to 0 via memset. Signed-off-by:
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo-20160920' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Support event group view with hierarchy mode in 'perf top' and 'perf report' (Namhyung Kim) e.g.: $ perf record -e '{cycles,instructions}' make $ perf report --hierarchy --stdio ... # Overhead Command / Shared Object / Symbol # ...................... .................................. ... 25.74% 27.18% sh 19.96% 24.14% libc-2.24.so 9.55% 14.64% [.] __strcmp_sse2 1.54% 0.00% [.] __tfind 1.07% 1.13% [.] _int_malloc 0.95% 0.00% [.] __strchr_sse2 0.89% 1.39% [.] __tsearch 0.76% 0.00% [.] strlen - Fix the dwarf regs table for x86_64, adding a missing % to the "%di" register, noticed with a failing 'perf test bpf' (Arnaldo Carvalho de Melo) - Fix handling of mmap parameters in the 'perf trace' beautifier in architectures that don't have the same mappings as x86_64 (Wang Nan) - Handle hugetbl mappings in older systems running new kernels (Wang Nan) - Resolve 'call' operands in 'annotate', that when using /proc/kcore were appearing just as hexadecimal addresses, to function names (Arnaldo Carvalho de Melo) - Fix width computation for srcline sort entry (Jiri Olsa) - Do not ignore call instruction with indirect target in 'annotate' (Ravi Bangoria) - Handle MADV_FREE in the madvise 'trace' beautifier (Wang Nan) - Fix build of 'perf trace' mman beautifier in !x86_64 (Wang Nan) Infrastructure changes: - Add infrastructure for PMU specific configuration, allowing to pass config variables directly to the kernel PMU driver, prefixing those variables with a '@', part of a larger series to support Coresight (Mathieu Poirier) Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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Jiri Olsa authored
The dso__read_binary_type_filename gets the dso's file name to open. We need to check it for regular file before trying to open it, otherwise we might get stuck with device file. Signed-off-by:
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Namhyung Kim authored
The stdio and tui has same code to reset hpp format column width. Factor it out as a new function. Suggested-and-Acked-by:
Jiri Olsa <jolsa@redhat.com> Signed-off-by:
Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20160920053025.13989-2-namhyung@kernel.org Signed-off-by:
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Namhyung Kim authored
When --hierarchy option is used, each entry has its own hpp_list to show the result. But it missed to update width of each column. Before: - 46.29% 48.12% netctl-auto + 31.44% 29.25% [kernel.vmlinux] + 8.52% 11.55% libc-2.22.so + 5.19% 6.91% bash + 10.75% 11.83% wpa_cli + 8.25% 2.23% swapper + 6.45% 5.40% tr + 4.81% 8.09% awk + 4.15% 2.85% firefox + 3.86% 2.53% sh After: - 46.29% 48.12% netctl-auto + 31.44% 29.25% [kernel.vmlinux] + 8.52% 11.55% libc-2.22.so + 5.19% 6.91% bash + 10.75% 11.83% wpa_cli + 8.25% 2.23% swapper + 6.45% 5.40% tr + 4.81% 8.09% awk + 4.15% 2.85% firefox + 3.86% 2.53% sh Committer note: Full testing instructions: 1) Record with an event group: $ perf record -e '{cycles,instructions}' make -j4 2) Use report in hierarchy mode, to get a few expanded trees on the same screen, use --percent-limit: $ perf report --hierarchy --percent-limit 0.5 Samples: 103K of event 'anon group { cycles:u, instructions:u }', Event count (approx.): 57317631725 Overhead Command / Shared Object / Symbol ◆ - 58.89% 55.12% cc1 ▒ - 50.26% 48.10% cc1 ▒ 3.61% 5.13% [.] _cpp_lex_token ▒ 2.58% 0.78% [.] ht_lookup_with_hash ▒ 1.31% 1.30% [.] ggc_internal_alloc ▒ 1.08% 2.25% [.] get_combined_adhoc_loc ▒ 1.01% 1.95% [.] ira_init ▒ 0.96% 1.78% [.] linemap_position_for_column ▒ 0.65% 1.01% [.] cpp_get_token_with_location ▒ - 7.52% 6.58% libc-2.23.so ▒ 1.70% 1.78% [.] _int_malloc ▒ 0.69% 0.75% [.] _int_free ▒ 0.67% 0.42% [.] malloc_consolidate ▒ - 0.58% 0.42% ld-2.23.so ▒ no entry >= 0.50% ▒ - 0.52% 0.03% [kernel.vmlinux] ▒ no entry >= 0.50% ▒ Signed-off-by:
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- Sep 20, 2016
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Arnaldo Carvalho de Melo authored
Before this patch the '_raw_spin_lock_irqsave' and 'update_rq_clock' operands were appearing just as hexadecimal numbers: update_blocked_averages /proc/kcore │ push %r12 │ push %rbx │ and $0xfffffffffffffff0,%rsp │ sub $0x40,%rsp │ add -0x662cac00(,%rdi,8),%rax │ mov %rax,%rbx │ mov %rax,%rdi │ mov %rax,0x38(%rsp) │ → callq _raw_spin_lock_irqsave │ mov %rbx,%rdi │ mov %rax,0x30(%rsp) │ → callq update_rq_clock │ mov 0x8d0(%rbx),%rax │ lea 0x8d0(%rbx),%r11 To check that all is right one can always use the 'o' hotkey and see the original objdump -dS output, that for this case is: update_blocked_averages /proc/kcore │ffffffff990d5489: push %r12 │ffffffff990d548b: push %rbx │ffffffff990d548c: and $0xfffffffffffffff0,%rsp │ffffffff990d5490: sub $0x40,%rsp │ffffffff990d5494: add -0x662cac00(,%rdi,8),%rax │ffffffff990d549c: mov %rax,%rbx │ffffffff990d549f: mov %rax,%rdi │ffffffff990d54a2: mov %rax,0x38(%rsp) │ffffffff990d54a7: → callq 0xffffffff997eb7a0 │ffffffff990d54ac: mov %rbx,%rdi │ffffffff990d54af: mov %rax,0x30(%rsp) │ffffffff990d54b4: → callq 0xffffffff990c7720 │ffffffff990d54b9: mov 0x8d0(%rbx),%rax │ffffffff990d54c0: lea 0x8d0(%rbx),%r11 Use the 'h' hotkey to see a list of available hotkeys. More work needed to cover operands for other instructions, such as 'mov', that can resolve variable names, etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Chris Riyder <chris.ryder@arm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Masami Hiramatsu <mhiramat@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: Pawel Moll <pawel.moll@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Taeung Song <treeze.taeung@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-xqgtw9mzmzcjgwkis9kiiv1p@git.kernel.org Signed-off-by: -
Arnaldo Carvalho de Melo authored
So that things like: → callq 0xffffffff993e3230 found while disassembling /proc/kcore can be beautified by later patches, that will resolve that address to a function, looking it up in /proc/kallsyms. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Chris Riyder <chris.ryder@arm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Masami Hiramatsu <mhiramat@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: Pawel Moll <pawel.moll@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Taeung Song <treeze.taeung@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-p76myuke4j7gplg54amaklxk@git.kernel.org Signed-off-by: -
Ravi Bangoria authored
Do not ignore call instruction with indirect target when its already identified as a call. This is an extension of commit e8ea1561 ("perf annotate: Use raw form for register indirect call instructions") to generalize annotation for all instructions with indirect calls. This is needed for certain powerpc call instructions that use address in a register (such as bctrl, btarl, ...). Apart from that, when kcore is used to disassemble function, all call instructions were ignored. This patch will fix it as a side effect by not ignoring them. For example, Before (with kcore): mov %r13,%rdi callq 0xffffffff811a7e70 ^ jmpq 64 mov %gs:0x7ef41a6e(%rip),%al After (with kcore): mov %r13,%rdi > callq 0xffffffff811a7e70 ^ jmpq 64 mov %gs:0x7ef41a6e(%rip),%al Suggested-by:
Michael Ellerman <mpe@ellerman.id.au> [Suggested about 'bctrl' instruction] Signed-off-by:
Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Chris Riyder <chris.ryder@arm.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Taeung Song <treeze.taeung@gmail.com> Link: http://lkml.kernel.org/r/1471611578-11255-5-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by:
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Jiri Olsa authored
Adding header size to width computation for srcline sort entry, because it's possible to get empty data with ':0' which set width of 2 which is lower than width needed to display column header. Signed-off-by:
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Alexander Shishkin authored
The Intel PT facility grew some new functionality: * PTWRITE packet carries the payload of the new PTWRITE instruction that can be used to instrument Intel PT traces with user-supplied data. Packets of this type are only generated if 'ptwrite' capability is set and PTWEn bit is set in the event attribute's config. Flow update packets (FUP) can be generated on PTWRITE packets if FUPonPTW config bit is set. Setting these bits is not allowed if 'ptwrite' capability is not set. * PWRE, PWRX, MWAIT, EXSTOP packets communicate core power management events. These depend on 'power_event_tracing' capability and are enabled by setting PwrEvtEn bit in the event attribute. Extend the driver capabilities and provide the proper sanity checks in the event validation function. [ tglx: Massaged changelog ] Signed-off-by:Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: vince@deater.net Cc: eranian@google.com Cc: Adrian Hunter <adrian.hunter@intel.com> Link: http://lkml.kernel.org/r/20160916134819.1978-1-alexander.shishkin@linux.intel.com Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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- Sep 19, 2016
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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 ] && ... -
Wang Nan authored
tools/perf/trace/beauty/mmap.c forgets to check MADV_FREE. This patch fixes it. Signed-off-by:
Wang Nan <wangnan0@huawei.com> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1473850649-83389-2-git-send-email-wangnan0@huawei.com Signed-off-by:
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- Sep 14, 2016
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Mathieu Poirier authored
This patch adds PMU driver specific configuration to the parser infrastructure by preceding any term with the '@' letter. As such doing something like: perf record -e some_event/@cfg1,@cfg2=config/ ... will see 'cfg1' and 'cfg2=config' being added to the list of evsel config terms. Token 'cfg1' and 'cfg2=config' are not processed in user space and are meant to be interpreted by the PMU driver. First the lexer/parser are supplemented with the required definitions to recognise the driver specific configuration. From there they are simply added to the list of event terms. The bulk of the work is done in function "parse_events_add_pmu()" where driver config event terms are added to a new list of driver config terms, which in turn spliced with the event's new driver configuration list. Signed-off-by:
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Namhyung Kim authored
Now that all the missing pieces are implemented, let's enable it. An example output below: $ perf record -e '{cycles,instructions}' make $ perf report --hierarchy --stdio ... # Overhead Command / Shared Object / Symbol # ...................... .................................. # ... 25.74% 27.18% sh 19.96% 24.14% libc-2.24.so 9.55% 14.64% [.] __strcmp_sse2 1.54% 0.00% [.] __tfind 1.07% 1.13% [.] _int_malloc 0.95% 0.00% [.] __strchr_sse2 0.89% 1.39% [.] __tsearch 0.76% 0.00% [.] strlen ... Signed-off-by:Andi Kleen <andi@firstfloor.org> Tested-by:
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Namhyung Kim authored
Now the hists__fprintf_hierarchy_headers() is a simple wrapper passing field separator. Let's do it directly. Signed-off-by:
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Namhyung Kim authored
When the --hierarchy option is used, each entry has its own hpp_list to show the result. But it is not updating the width of each column for perf-top. The perf-report command has no problem since it resets it during header display. $ sudo perf top --hierarchy --stdio PerfTop: 160 irqs/sec kernel:38.8% exact: 100.0% [4000Hz cycles:pp], (all, 12 CPUs) ---------------------------------------------------------------------- 52.32% perf 24.74% [.] __symbols__insert 5.62% [.] rb_next 5.14% [.] dso__load_sym Move the code into hists__fprintf() so that it can be called always. Also it'd be better to put similar code together. Signed-off-by: -
Namhyung Kim authored
The hroot_in and hroot_out are roots of hierarchy trees of hist entries. But when a hist entry is initialized by copying existing template entry, it sometimes has non-empty tree and copies it incorrectly. This is a problem especially when an event group is used since it creates dummy entries from already-processed entries in other event members. Signed-off-by:
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Namhyung Kim authored
The hists__link_hierarchy() is to support hierarchy reports with an event group. When it matches the leader event and the other members (using hists__match_hierarchy()), it also needs to link unmatched member entries with a dummy leader event so that it can show up in the output. Signed-off-by:
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Namhyung Kim authored
The hists__match_hierarchy() is to find matching hist entries in a group. A matching entry has the same values for all sort keys given. With an event group (e.g.: -e "{cycles,instructions}"), a leader event should show other members in a group. So each entry in the leader should be able to find its pair entries which have same values. With hierarchy mode, it needs to search all matching children in a hierarchy. An example output looks like: # Overhead Command / Shared Object / Symbol # ...................... .................................. # 25.74% 27.18% sh 19.96% 24.14% libc-2.24.so 9.55% 14.64% [.] __strcmp_sse2 1.54% 0.00% [.] __tfind 1.07% 1.13% [.] _int_malloc ... In the above example, two overheads are shown - one for the leader and another for the other group member. They were matched since their command, dso and symbol have the same values. Signed-off-by: -
Wang Nan authored
As with other cloned headers, compare the newly introduced mman related headers against their source copy in kernel tree. Signed-off-by:
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Arnaldo Carvalho de Melo authored
The csets: 0ac3348e ("perf tools: Recognize hugetlb mapping as anon mapping") d7e404af ("perf record: Mark MAP_HUGETLB when synthesizing mmap events") Added code conditional on MAP_HUGETLB, to make it build in older systems where that define wasn't available. Now that we grabbed copies of uapi/linux/mmap.h to have all those definitions in tools/, use it so that we can support building the tools for older systems (without the MAP_HUGETLB define in its libc headers) using new kernels that support such maps. Cc: Adrian Hunter <adrian.hunter@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> Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/n/tip-wv6oqbfkpxbix4umj2kcfmaz@git.kernel.org Signed-off-by:
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Arnaldo Carvalho de Melo authored
Several defines have different values in different arches, so we can't just define it to the x86_64 value, use uapi/linux/mmap.h that was recently introduced to reliably find those, not using possibly outdated libc headers. Cc: Adrian Hunter <adrian.hunter@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> Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/n/tip-4eajp5yp8i2fuw44n7jmcg5t@git.kernel.org Signed-off-by:
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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 | s...
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- Sep 12, 2016
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Namhyung Kim authored
Milian reported that the event group on TUI shows duplicated overhead. This was due to a bug on calculating hpp->buf position. The hpp_advance() was called from __hpp__slsmg_color_printf() on TUI but it's already called from the hpp__call_print_fn macro in __hpp__fmt(). The end result is that the print function returns number of bytes it printed but the buffer advanced twice of the length. This is generally not a problem since it doesn't need to access the buffer again. But with event group, overhead needs to be printed multiple times and hist_entry__snprintf_alignment() tries to fill the space with buffer after it printed. So it (brokenly) showed the last overhead again. The bug was there from the beginning, but I think it's only revealed when the alignment function was added. Reported-by:
Milian Wolff <milian.wolff@kdab.com> Signed-off-by:
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Arnaldo Carvalho de Melo authored
In 293d5b43 ("perf probe: Support probing on offline cross-arch binary") DWARF register tables were introduced for many architectures, with the one for the "dx" register being broken for x86_64, which got noticed by the 'perf test bpf' testcase, that has this difference from a successful run to one that fails, with the aforementioned patch: -Writing event: p:perf_bpf_probe/func _text+5197232 f_mode=+68(%di):x32 offset=%si:s64 orig=dx:s32 -Failed to write event: Invalid argument -bpf_probe: failed to apply perf probe eventsFailed to add events selected by BPF +Writing event: p:perf_bpf_probe/func _text+5197232 f_mode=+68(%di):x32 offset=%si:s64 orig=%dx:s32 Add the missing '%' to '%dx' to fix this. Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Fixes: 293d5b43 ("perf probe: Support probing on offline cross-arch binary") Link: https://lkml.kernel.org/r/20160909145955.GC32585@kernel.org Signed-off-by:
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- Sep 10, 2016
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Kan Liang authored
This patch implements the uncore monitoring driver for Skylake server. The uncore subsystem in Skylake server is similar to previous server. There are some differences in config register encoding and pci device IDs. Besides, Skylake introduces many new boxes to reflect the MESH architecture changes. The control registers for IIO and UPI have been extended to 64 bit. This patch also introduces event_mask_ext to handle the high 32 bit mask. The CHA box number could vary for different machines. This patch gets the CHA box number by counting the CHA register space during initialization at runtime. Signed-off-by:
Kan Liang <kan.liang@intel.com> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: http://lkml.kernel.org/r/1471378190-17276-3-git-send-email-kan.liang@intel.com Signed-off-by:
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