- 11 Jul, 2012 1 commit
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Dan Carpenter authored
Clean up and return -ENOMEM on if the kzalloc() fails. This also prevents a potential crash, as the pointer that failed to allocate would be later used. Link: http://lkml.kernel.org/r/20120711063507.GF11812@elgon.mountain Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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- 06 Jul, 2012 6 commits
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Pekka Enberg authored
Use tabs for "intel_perfmon_event_map" formatting in perf_event_intel.c. Signed-off-by:
Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Link: http://lkml.kernel.org/r/1341568786-7045-1-git-send-email-penberg@kernel.orgSigned-off-by:
Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofileIngo Molnar authored
Pull oprofile fixlets from Robert Richter. Signed-off-by: -
Ingo Molnar authored
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/core Pull tracing updates from Steve Rostedt. Signed-off-by:
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Jason Baron authored
Remove the obsolete static_branch() interface, since the supported interface is now static_key_false()/true() - which is used by all in-tree code. See commit: c5905afb ("static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]()"). Signed-off-by:
Jason Baron <jbaron@redhat.com> Cc: rostedt@goodmis.org Cc: mathieu.desnoyers@efficios.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/199332c47eef8005d5a5bf1018a80d25929a5746.1340909155.git.jbaron@redhat.comSigned-off-by:
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Jason Baron authored
Convert the last user of static_branch() -> static_key_false(). Signed-off-by:
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core perf/core improvements and fixes: - Preparatory patches to use hw events in PMU syntax, from Jiri Olsa - Remaining backport of trace-cmd's libparseevent, from Namhyung Kim - Fix libtraceevent 'clean' make target, from Namhyung Kim - Teach ctags about libtraceevent error codes, from Namhyung Kim - Fix libtraceevent dependency files usage, from Namhyung Kim - Support hex number pretty printing in libtraceevent, fixing kvm output, from Namhyung Kim - Kill some die() usage in libtraceevent, from Namhyung Kim - Improve support for hw breakpoints parsing/pretty printing/testing, from Jiri Olsa - Clarify perf bench option naming, from Hitoshi Mitake - Look for ".note" ELF notes too, used in the kernel vdso, from Jiri Olsa - Fix internal PMU list usage, removing leak, from Robert Richter Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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- 05 Jul, 2012 18 commits
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Yan, Zheng authored
This patch adds C-Box and PCU filter support for SandyBridge-EP uncore. We can filter C-Box events by thread/core ID and filter PCU events by frequency/voltage. Signed-off-by:
Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by:
Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1341381616-12229-5-git-send-email-zheng.z.yan@intel.comSigned-off-by:
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Yan, Zheng authored
The CBox manages the interface between the core and the LLC, so the instances of uncore CBox is equal to number of cores. Reported-by:
Andrew Cooks <acooks@gmail.com> Signed-off-by:
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Yan, Zheng authored
The constraint for C-Box event 0x1f should have overlap flag set. Signed-off-by:
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Yan, Zheng authored
Stephane Eranian suggestted using 0xff as pseudo code for fixed uncore event and using the umask value to determine which of the fixed events we want to map to. So far there is at most one fixed counter in a uncore PMU. So just change the definition of UNCORE_FIXED_EVENT to 0xff. Suggested-by:
Stephane Eranian <eranian@google.com> Signed-off-by:
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Peter Zijlstra authored
All these are basically boolean flags, use a bitfield to save a few bytes. Suggested-by:
Borislav Petkov <bp@amd64.org> Signed-off-by:
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Peter Zijlstra authored
Recent Intel microcode resolved the SNB-PEBS issues, so conditionally enable PEBS on SNB hardware depending on the microcode revision. Thanks to Stephane for figuring out the various microcode revisions. Suggested-by:
Borislav Petkov <borislav.petkov@amd.com> Signed-off-by:
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Robert Richter authored
It might be of interest which perfctr msr failed. Signed-off-by:
Robert Richter <robert.richter@amd.com> [ added hunk to avoid GCC warn ] Signed-off-by:
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Robert Richter authored
There is no need for keeping separate pmu structs. We can enable amd_{get,put}_event_constraints() functions also for family 15h event. The advantage is that there is only a single pmu struct for all AMD cpus. This patch introduces functions to setup the pmu to enabe core performance counters or counter constraints. Also, cpuid checks are used instead of family checks where possible. Thus, it enables the code independently of cpu families if the feature flag is set. Signed-off-by: -
Robert Richter authored
There is some Intel specific code in the generic x86 path. Move it to intel_pmu_init(). Since p4 and p6 pmus don't have fixed counters we may skip the check in case such a pmu is detected. Signed-off-by:
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Robert Richter authored
There are macros that are Intel specific and not x86 generic. Rename them into INTEL_*. This patch removes X86_PMC_IDX_GENERIC and does: $ sed -i -e 's/X86_PMC_MAX_/INTEL_PMC_MAX_/g' \ arch/x86/include/asm/kvm_host.h \ arch/x86/include/asm/perf_event.h \ arch/x86/kernel/cpu/perf_event.c \ arch/x86/kernel/cpu/perf_event_p4.c \ arch/x86/kvm/pmu.c $ sed -i -e 's/X86_PMC_IDX_FIXED/INTEL_PMC_IDX_FIXED/g' \ arch/x86/include/asm/perf_event.h \ arch/x86/kernel/cpu/perf_event.c \ arch/x86/kernel/cpu/perf_event_intel.c \ arch/x86/kernel/cpu/perf_event_intel_ds.c \ arch/x86/kvm/pmu.c $ sed -i -e 's/X86_PMC_MSK_/INTEL_PMC_MSK_/g' \ arch/x86/include/asm/perf_event.h \ arch/x86/kernel/cpu/perf_event.c Signed-off-by: -
Ingo Molnar authored
Merge this branch because we want to rely on the newer (and saner) microcode loading and checking facilities. Signed-off-by: -
Ingo Molnar authored
Merge this branch because we changed the wrmsr*_safe() API and there's a conflict. Signed-off-by: -
Ingo Molnar authored
Merge this branch to pick up a fixlet and to update to a more recent base. Signed-off-by: -
Peter Zijlstra authored
Several perf interrupt handlers (PEBS,IBS,BTS) re-write regs->ip but do not update the segment registers. So use an regs->ip based test instead of an regs->cs/regs->flags based test. Reported-and-tested-by:
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Arnaldo Carvalho de Melo authored
Merge tag 'libtraceevent-core-for-acme' of git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf into perf/core libtraceevent/core improvements * Remaining backport of trace-cmd's libparseevent Signed-off-by:
Namhyung Kim <namhyung@kernel.org> Signed-off-by:
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Jiri Olsa authored
It'll be convenient in upcoming patch to access hw event symbols strings via enum perf_hw_id indexes. In order not to duplicate the data, creating two separate arrays: event_symbols_hw for enum perf_hw_id events event_symbols_sw for enum perf_sw_ids events Changing the current event list code to follow the change. Signed-off-by:
Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1341352848-11833-7-git-send-email-jolsa@redhat.comSigned-off-by:
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Jiri Olsa authored
Spliting PE_VALUE_SYM token to PE_VALUE_SYM_HW and PE_VALUE_SYM_SW tokens to separate hardware and software symbols. This will be useful in upcomming patch where we want to be able to parse out only hardware events. Signed-off-by:
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Jiri Olsa authored
The flex generator prints out each input character that is ignored by lex rules. Since the alias processing, we can have '\n' characters on input. We need to assign empty rule to it, so it's not printed out. Signed-off-by:
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- 04 Jul, 2012 15 commits
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Jiri Olsa authored
Use ARRAY_SIZE instead of defining the sizes separately for each test arrays. Signed-off-by:
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Namhyung Kim authored
The if branch is completely unnecessary since 'realloc' can handle NULL pointers for the first parameter. This patch is just an adoption of Ulrich Drepper's recent patch on perf tools. Signed-off-by:
Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/1335230984-7613-1-git-send-email-namhyung.kim@lge.comSigned-off-by:
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Peter Huewe authored
In the current code we assign vsize=8 and then fall through to the default and assign vsize=1. -> probably the break is missing here, otherwise we can remove the case. Signed-off-by:
Peter Huewe <peterhuewe@gmx.de> Signed-off-by:
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Namhyung Kim authored
The arg_to_str() can fail so we should handle that case properly. Signed-off-by:
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Namhyung Kim authored
The malloc can fail so the return value should be checked. For now, just use malloc_or_die(). Signed-off-by:
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Namhyung Kim authored
Update and add missing argument descriptions and fix some typo on function comments. Signed-off-by:
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Namhyung Kim authored
When memory allocation for the field name is failed, do not goto event_failed since we added the event already. Signed-off-by:
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Namhyung Kim authored
It seems PEVENT_FUNC_ARG_STRING missed passing the allocated string to the args array. Fix it. Signed-off-by:
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Namhyung Kim authored
The realloc can fail so that we should handle it properly. Signed-off-by:
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Namhyung Kim authored
There were some places didn't check return value of the strdup and had unneeded/duplicated checks. Fix it. Signed-off-by:
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Namhyung Kim authored
The __read_token() function has some duplicated code to handle internal buffer overflow. Factor them out to new extend_token(). According to the man pages of realloc/free(3), they can handle NULL pointer input so that it can be ended up to compact the code. Also handle error path correctly. Signed-off-by:
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Namhyung Kim authored
The printk_cmp function should use printk_map instead of func_map. Also rename the variables for consistency. Signed-off-by:
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Wolfgang Mauerer authored
On 32 bit systems, a conversion of the trace_printk format string "%lu" -> "%llu" is intended (similar for %lx etc.) when a trace was taken on a machine with 64 bit long integers. However, the current code computes the bogus transformation "%lu" -> "%u". Fix this. Besides that, the transformation is only required on systems that don't use 64 bits for long integers natively. Signed-off-by:
Wolfgang Mauerer <wolfgang.mauerer@siemens.com> Signed-off-by:
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Steven Rostedt authored
When %pM is used, the arg value must be a 6 byte character that will be printed as a 6 byte MAC address. But the code does a break over the main code which updates the current processing arg to point to the next arg. If there are other print arguments after a %pM, they will be off by one. The next arg will still be processing the %pM arg. Reported-by:
Johannes Berg <johannes.berg@intel.com> Signed-off-by:
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Steven Rostedt authored
The RT kernel added a migrate disable counter in all events. Add support to show this in the latency format. Signed-off-by:
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