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Subject[GIT PULL] perf changes for v3.11
Linus,

Please pull the latest perf-core-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-core-for-linus

HEAD: 983433b5812c5cf33a9008fa38c6f9b407fedb76 perf/x86: Disable PEBS-LL in intel_pmu_pebs_disable()

The main changes:

Kernel improvements:

* watchdog driver improvements by Li Zefan
* Power7 CPI stack events related improvements by Sukadev Bhattiprolu
* event multiplexing via hrtimers and other improvements by Stephane Eranian
* kernel stack use optimization by Andrew Hunter
* AMD IOMMU uncore PMU support by Suravee Suthikulpanit
* NMI handling rate-limits by Dave Hansen
* various hw_breakpoint fixes by Oleg Nesterov
* hw_breakpoint overflow period sampling and related signal handling fixes by Jiri Olsa
* Intel Haswell PMU support by Andi Kleen

Tooling improvements:

* Reset SIGTERM handler in workload child process, fix from David Ahern.
* Makefile reorganization, prep work for Kconfig patches, from Jiri Olsa.
* Add automated make test suite, from Jiri Olsa.
* Add --percent-limit option to 'top' and 'report', from Namhyung Kim.
* Sorting improvements, from Namhyung Kim.
* Expand definition of sysfs format attribute, from Michael Ellerman.

Tooling fixes:

* 'perf tests' fixes from Jiri Olsa.
* Make Power7 CPI stack events available in sysfs, from Sukadev Bhattiprolu.
* Handle death by SIGTERM in 'perf record', fix from David Ahern.
* Fix printing of perf_event_paranoid message, from David Ahern.
* Handle realloc failures in 'perf kvm', from David Ahern.
* Fix divide by 0 in variance, from David Ahern.
* Save parent pid in thread struct, from David Ahern.
* Handle JITed code in shared memory, from Andi Kleen.
* Fixes for 'perf diff', from Jiri Olsa.
* Remove some unused struct members, from Jiri Olsa.
* Add missing liblk.a dependency for python/perf.so, fix from Jiri Olsa.
* Respect CROSS_COMPILE in liblk.a, from Rabin Vincent.
* No need to do locking when adding hists in perf report, only 'top'
needs that, from Namhyung Kim.
* Fix alignment of symbol column in in the hists browser (top, report)
when -v is given, from NAmhyung Kim.
* Fix 'perf top' -E option behavior, from Namhyung Kim.
* Fix bug in isupper() and islower(), from Sukadev Bhattiprolu.
* Fix compile errors in bp_signal 'perf test', from Sukadev Bhattiprolu.

... and more things.

Thanks,

Ingo

------------------>
Andi Kleen (8):
perf tools: Handle JITed code in shared memory
perf/x86/intel: Add Haswell PEBS record support
perf/x86/intel: Add simple Haswell PMU support
perf/x86/intel: Add Haswell PEBS support
perf/x86/intel: Move NMI clearing to end of PMI handler
perf/x86/intel: Support Haswell/v4 LBR format
perf/x86/intel: Add mem-loads/stores support for Haswell
perf/x86/intel: Support full width counting
Andrew Hunter (1):
perf/x86: Reduce stack usage of x86_schedule_events()

Arnaldo Carvalho de Melo (3):
perf archive: Fix typo on Documentation
perf hists browser: Use sort__has_sym
perf test: Fix typo

Dan Carpenter (1):
perf/x86/intel: Prevent some shift wrapping bugs in the Intel uncore driver

Dave Hansen (4):
perf/x86: Only print PMU state when also WARN()'ing
x86: Warn when NMI handlers take large amounts of time
perf: Drop sample rate when sampling is too slow
x86: Add NMI duration tracepoints

David Ahern (6):
perf record: handle death by SIGTERM
perf evsel: Fix printing of perf_event_paranoid message
perf kvm: Handle realloc failures
perf stats: Fix divide by 0 in variance
perf tools: Save parent pid in thread struct
perf evlist: Reset SIGTERM handler in workload child process

Jiri Olsa (36):
x86/signals: Propagate RF EFLAGS bit through the signal restore call
x86/signals: Clear RF EFLAGS bit for signal handler
x86/signals: Merge EFLAGS bit clearing into a single statement
perf: Fix hw breakpoints overflow period sampling
perf tools: Fix tab vs spaces issue in Makefile ifdef/endif
perf diff: Use internal rb tree for hists__precompute
perf hists: Rename hist_entry__add_pair arguments
perf tools: Add automated make test suite
perf tools: Move arch check into config/Makefile
perf tools: Move programs check into config/Makefile
perf tools: Move compiler and linker flags check into config/Makefile
perf tools: Move libelf check config into config/Makefile
perf tools: Move libdw check config into config/Makefile
perf tools: Move libunwind check config into config/Makefile
perf tools: Move libaudit check config into config/Makefile
perf tools: Move slang check config into config/Makefile
perf tools: Move gtk2 check config into config/Makefile
perf tools: Move libperl check config into config/Makefile
perf tools: Move libpython check config into config/Makefile
perf tools: Move libbfd check config into config/Makefile
perf tools: Move stdlib check config into config/Makefile
perf tools: Move libnuma check config into config/Makefile
perf tools: Move paths config into config/Makefile
perf tools: Final touches for CHK config move
perf tests: Fix attr test for record -d option
perf tests: Fix exclude_guest|exclude_host checking for attr tests
perf tools: Remove frozen from perf_header struct
perf tools: Remove cwdlen from struct perf_session
perf tools: Merge all *CFLAGS* make variable into CFLAGS
perf tools: Merge all *LDFLAGS* make variable into LDFLAGS
perf tools: Switch to full path C include directories
perf tools: Add NO_BIONIC variable to confiure bionic setup
perf tools: Replace tabs with spaces for all non-commands statements
perf tools: Replace multiple line assignment with multiple statements
perf tools: Remove '?=' Makefile STRIP assignment
perf tools: Add missing liblk.a dependency for python/perf.so
Li Zefan (3):
watchdog: Disallow setting watchdog_thresh to -1
watchdog: Document watchdog_thresh sysctl
watchdog: Remove softlockup_thresh from Documentation

Michael Ellerman (1):
perf: Expand definition of sysfs format attribute

Mischa Jonker (1):
perf: Add const qualifier to perf_pmu_register's 'name' arg

Namhyung Kim (18):
perf hists: Fix an invalid memory free on he->branch_info
perf hists: Free unused mem info of a matched hist entry
perf report: Fix alignment of symbol column when -v is given
perf sort: Introduce sort__mode variable
perf sort: Factor out common code in sort_dimension__add()
perf sort: Separate out memory-specific sort keys
perf sort: Consolidate sort_entry__setup_elide()
perf sort: Reorder HISTC_SRCLINE index
perf sort: Cleanup sort__has_sym setting
perf top: Use sort__has_sym
perf top: Fix -E option behavior
perf top: Fix percent output when no samples collected
perf top: Get rid of *_threaded() functions
perf hists: Move locking to its call-sites
perf report: Don't bother locking when adding hist entries
perf report: Add --percent-limit option
perf top: Add --percent-limit option
perf report: Add report.percent-limit config variable

Oleg Nesterov (5):
hw_breakpoint: Simplify list/idx mess in toggle_bp_slot() paths
hw_breakpoint: Simplify the "weight" usage in toggle_bp_slot() paths
hw_breakpoint: Introduce cpumask_of_bp()
hw_breakpoint: Simplify *register_wide_hw_breakpoint()
hw_breakpoint: Introduce "struct bp_cpuinfo"

Peter Zijlstra (1):
perf/x86/amd: Rework AMD PMU init code

Rabin Vincent (1):
tools lib lk: Respect CROSS_COMPILE

Stephane Eranian (6):
perf: Use hrtimers for event multiplexing
perf: Add sysfs entry to adjust multiplexing interval per PMU
perf/x86: Check branch sampling priv level in generic code
perf: Fix hypervisor branch sampling permission check
perf/x86: Fix shared register mutual exclusion enforcement
perf/x86: Disable PEBS-LL in intel_pmu_pebs_disable()

Steven L Kinney (1):
perf/x86/amd: Add IOMMU Performance Counter resource management

Sukadev Bhattiprolu (4):
perf tools: Fix bug in isupper() and islower()
perf tests: Fix compile errors in bp_signal files
perf: Power7: Make CPI stack events available in sysfs
perf: Power7 Update testing ABI to list CPI-stack events

Suravee Suthikulpanit (1):
perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation

Yan, Zheng (1):
perf/x86/intel: Fix sparse warning


.../testing/sysfs-bus-event_source-devices-events | 32 +-
.../testing/sysfs-bus-event_source-devices-format | 6 +
Documentation/sysctl/kernel.txt | 50 +-
Documentation/trace/events-nmi.txt | 43 ++
arch/metag/kernel/perf/perf_event.c | 2 +-
arch/powerpc/perf/power7-pmu.c | 73 +++
arch/x86/ia32/ia32_signal.c | 2 -
arch/x86/include/asm/perf_event.h | 3 +
arch/x86/include/asm/sighandling.h | 4 +-
arch/x86/include/uapi/asm/msr-index.h | 3 +
arch/x86/kernel/cpu/Makefile | 4 +
arch/x86/kernel/cpu/perf_event.c | 69 ++-
arch/x86/kernel/cpu/perf_event.h | 24 +-
arch/x86/kernel/cpu/perf_event_amd.c | 34 +-
arch/x86/kernel/cpu/perf_event_amd_iommu.c | 504 +++++++++++++++++
arch/x86/kernel/cpu/perf_event_amd_iommu.h | 40 ++
arch/x86/kernel/cpu/perf_event_intel.c | 136 ++++-
arch/x86/kernel/cpu/perf_event_intel_ds.c | 178 +++++-
arch/x86/kernel/cpu/perf_event_intel_lbr.c | 69 ++-
arch/x86/kernel/cpu/perf_event_intel_uncore.c | 16 +-
arch/x86/kernel/cpu/perf_event_intel_uncore.h | 4 +-
arch/x86/kernel/nmi.c | 36 +-
arch/x86/kernel/signal.c | 16 +-
drivers/iommu/amd_iommu_init.c | 140 ++++-
drivers/iommu/amd_iommu_proto.h | 7 +
drivers/iommu/amd_iommu_types.h | 15 +-
include/linux/perf_event.h | 28 +-
include/trace/events/nmi.h | 37 ++
include/uapi/linux/perf_event.h | 5 +-
init/main.c | 2 +-
kernel/events/core.c | 278 ++++++++-
kernel/events/hw_breakpoint.c | 191 +++----
kernel/sysctl.c | 12 +-
tools/lib/lk/Makefile | 3 +
tools/perf/Documentation/perf-archive.txt | 2 +-
tools/perf/Documentation/perf-report.txt | 4 +
tools/perf/Documentation/perf-top.txt | 4 +
tools/perf/Makefile | 630 ++++-----------------
tools/perf/builtin-diff.c | 19 +-
tools/perf/builtin-kvm.c | 3 +
tools/perf/builtin-record.c | 2 +-
tools/perf/builtin-report.c | 102 ++--
tools/perf/builtin-top.c | 74 +--
tools/perf/config/Makefile | 477 ++++++++++++++++
tools/perf/tests/attr/base-record | 4 +-
tools/perf/tests/attr/base-stat | 4 +-
tools/perf/tests/attr/test-record-data | 5 +-
tools/perf/tests/bp_signal.c | 6 +
tools/perf/tests/bp_signal_overflow.c | 6 +
tools/perf/tests/builtin-test.c | 2 +-
tools/perf/tests/make | 138 +++++
tools/perf/ui/browsers/hists.c | 106 +++-
tools/perf/ui/gtk/hists.c | 13 +-
tools/perf/ui/stdio/hist.c | 7 +-
tools/perf/util/evlist.c | 2 +
tools/perf/util/evsel.c | 2 +-
tools/perf/util/header.c | 2 -
tools/perf/util/header.h | 1 -
tools/perf/util/hist.c | 96 ++--
tools/perf/util/hist.h | 16 +-
tools/perf/util/map.c | 1 +
tools/perf/util/session.h | 1 -
tools/perf/util/setup.py | 5 +-
tools/perf/util/sort.c | 128 +++--
tools/perf/util/sort.h | 36 +-
tools/perf/util/stat.c | 2 +-
tools/perf/util/thread.c | 4 +
tools/perf/util/thread.h | 1 +
tools/perf/util/top.c | 23 +-
tools/perf/util/top.h | 2 +-
tools/perf/util/util.h | 4 +-
71 files changed, 2947 insertions(+), 1053 deletions(-)
create mode 100644 Documentation/trace/events-nmi.txt
create mode 100644 arch/x86/kernel/cpu/perf_event_amd_iommu.c
create mode 100644 arch/x86/kernel/cpu/perf_event_amd_iommu.h
create mode 100644 include/trace/events/nmi.h
create mode 100644 tools/perf/config/Makefile
create mode 100644 tools/perf/tests/make
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
index 0adeb52..8b25ffb 100644
--- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
@@ -27,14 +27,36 @@ Description: Generic performance monitoring events
"basename".


-What: /sys/devices/cpu/events/PM_LD_MISS_L1
- /sys/devices/cpu/events/PM_LD_REF_L1
- /sys/devices/cpu/events/PM_CYC
+What: /sys/devices/cpu/events/PM_1PLUS_PPC_CMPL
/sys/devices/cpu/events/PM_BRU_FIN
- /sys/devices/cpu/events/PM_GCT_NOSLOT_CYC
/sys/devices/cpu/events/PM_BRU_MPRED
- /sys/devices/cpu/events/PM_INST_CMPL
/sys/devices/cpu/events/PM_CMPLU_STALL
+ /sys/devices/cpu/events/PM_CMPLU_STALL_BRU
+ /sys/devices/cpu/events/PM_CMPLU_STALL_DCACHE_MISS
+ /sys/devices/cpu/events/PM_CMPLU_STALL_DFU
+ /sys/devices/cpu/events/PM_CMPLU_STALL_DIV
+ /sys/devices/cpu/events/PM_CMPLU_STALL_ERAT_MISS
+ /sys/devices/cpu/events/PM_CMPLU_STALL_FXU
+ /sys/devices/cpu/events/PM_CMPLU_STALL_IFU
+ /sys/devices/cpu/events/PM_CMPLU_STALL_LSU
+ /sys/devices/cpu/events/PM_CMPLU_STALL_REJECT
+ /sys/devices/cpu/events/PM_CMPLU_STALL_SCALAR
+ /sys/devices/cpu/events/PM_CMPLU_STALL_SCALAR_LONG
+ /sys/devices/cpu/events/PM_CMPLU_STALL_STORE
+ /sys/devices/cpu/events/PM_CMPLU_STALL_THRD
+ /sys/devices/cpu/events/PM_CMPLU_STALL_VECTOR
+ /sys/devices/cpu/events/PM_CMPLU_STALL_VECTOR_LONG
+ /sys/devices/cpu/events/PM_CYC
+ /sys/devices/cpu/events/PM_GCT_NOSLOT_BR_MPRED
+ /sys/devices/cpu/events/PM_GCT_NOSLOT_BR_MPRED_IC_MISS
+ /sys/devices/cpu/events/PM_GCT_NOSLOT_CYC
+ /sys/devices/cpu/events/PM_GCT_NOSLOT_IC_MISS
+ /sys/devices/cpu/events/PM_GRP_CMPL
+ /sys/devices/cpu/events/PM_INST_CMPL
+ /sys/devices/cpu/events/PM_LD_MISS_L1
+ /sys/devices/cpu/events/PM_LD_REF_L1
+ /sys/devices/cpu/events/PM_RUN_CYC
+ /sys/devices/cpu/events/PM_RUN_INST_CMPL

Date: 2013/01/08

diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-format b/Documentation/ABI/testing/sysfs-bus-event_source-devices-format
index 079afc7..77f47ff 100644
--- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-format
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-format
@@ -9,6 +9,12 @@ Description:
we want to export, so that userspace can deal with sane
name/value pairs.

+ Userspace must be prepared for the possibility that attributes
+ define overlapping bit ranges. For example:
+ attr1 = 'config:0-23'
+ attr2 = 'config:0-7'
+ attr3 = 'config:12-35'
+
Example: 'config1:1,6-10,44'
Defines contents of attribute that occupies bits 1,6-10,44 of
perf_event_attr::config1.
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index ccd4258..ab7d16e 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -70,12 +70,12 @@ show up in /proc/sys/kernel:
- shmall
- shmmax [ sysv ipc ]
- shmmni
-- softlockup_thresh
- stop-a [ SPARC only ]
- sysrq ==> Documentation/sysrq.txt
- tainted
- threads-max
- unknown_nmi_panic
+- watchdog_thresh
- version

==============================================================
@@ -427,6 +427,32 @@ This file shows up if CONFIG_DEBUG_STACKOVERFLOW is enabled.

==============================================================

+perf_cpu_time_max_percent:
+
+Hints to the kernel how much CPU time it should be allowed to
+use to handle perf sampling events. If the perf subsystem
+is informed that its samples are exceeding this limit, it
+will drop its sampling frequency to attempt to reduce its CPU
+usage.
+
+Some perf sampling happens in NMIs. If these samples
+unexpectedly take too long to execute, the NMIs can become
+stacked up next to each other so much that nothing else is
+allowed to execute.
+
+0: disable the mechanism. Do not monitor or correct perf's
+ sampling rate no matter how CPU time it takes.
+
+1-100: attempt to throttle perf's sample rate to this
+ percentage of CPU. Note: the kernel calculates an
+ "expected" length of each sample event. 100 here means
+ 100% of that expected length. Even if this is set to
+ 100, you may still see sample throttling if this
+ length is exceeded. Set to 0 if you truly do not care
+ how much CPU is consumed.
+
+==============================================================
+

pid_max:

@@ -604,15 +630,6 @@ without users and with a dead originative process will be destroyed.

==============================================================

-softlockup_thresh:
-
-This value can be used to lower the softlockup tolerance threshold. The
-default threshold is 60 seconds. If a cpu is locked up for 60 seconds,
-the kernel complains. Valid values are 1-60 seconds. Setting this
-tunable to zero will disable the softlockup detection altogether.
-
-==============================================================
-
tainted:

Non-zero if the kernel has been tainted. Numeric values, which
@@ -648,3 +665,16 @@ that time, kernel debugging information is displayed on console.

NMI switch that most IA32 servers have fires unknown NMI up, for
example. If a system hangs up, try pressing the NMI switch.
+
+==============================================================
+
+watchdog_thresh:
+
+This value can be used to control the frequency of hrtimer and NMI
+events and the soft and hard lockup thresholds. The default threshold
+is 10 seconds.
+
+The softlockup threshold is (2 * watchdog_thresh). Setting this
+tunable to zero will disable lockup detection altogether.
+
+==============================================================
diff --git a/Documentation/trace/events-nmi.txt b/Documentation/trace/events-nmi.txt
new file mode 100644
index 0000000..c03c8c8
--- /dev/null
+++ b/Documentation/trace/events-nmi.txt
@@ -0,0 +1,43 @@
+NMI Trace Events
+
+These events normally show up here:
+
+ /sys/kernel/debug/tracing/events/nmi
+
+--
+
+nmi_handler:
+
+You might want to use this tracepoint if you suspect that your
+NMI handlers are hogging large amounts of CPU time. The kernel
+will warn if it sees long-running handlers:
+
+ INFO: NMI handler took too long to run: 9.207 msecs
+
+and this tracepoint will allow you to drill down and get some
+more details.
+
+Let's say you suspect that perf_event_nmi_handler() is causing
+you some problems and you only want to trace that handler
+specifically. You need to find its address:
+
+ $ grep perf_event_nmi_handler /proc/kallsyms
+ ffffffff81625600 t perf_event_nmi_handler
+
+Let's also say you are only interested in when that function is
+really hogging a lot of CPU time, like a millisecond at a time.
+Note that the kernel's output is in milliseconds, but the input
+to the filter is in nanoseconds! You can filter on 'delta_ns':
+
+cd /sys/kernel/debug/tracing/events/nmi/nmi_handler
+echo 'handler==0xffffffff81625600 && delta_ns>1000000' > filter
+echo 1 > enable
+
+Your output would then look like:
+
+$ cat /sys/kernel/debug/tracing/trace_pipe
+<idle>-0 [000] d.h3 505.397558: nmi_handler: perf_event_nmi_handler() delta_ns: 3236765 handled: 1
+<idle>-0 [000] d.h3 505.805893: nmi_handler: perf_event_nmi_handler() delta_ns: 3174234 handled: 1
+<idle>-0 [000] d.h3 506.158206: nmi_handler: perf_event_nmi_handler() delta_ns: 3084642 handled: 1
+<idle>-0 [000] d.h3 506.334346: nmi_handler: perf_event_nmi_handler() delta_ns: 3080351 handled: 1
+
diff --git a/arch/metag/kernel/perf/perf_event.c b/arch/metag/kernel/perf/perf_event.c
index 3665694..5b18888 100644
--- a/arch/metag/kernel/perf/perf_event.c
+++ b/arch/metag/kernel/perf/perf_event.c
@@ -882,7 +882,7 @@ static int __init init_hw_perf_events(void)
}

register_cpu_notifier(&metag_pmu_notifier);
- ret = perf_pmu_register(&pmu, (char *)metag_pmu->name, PERF_TYPE_RAW);
+ ret = perf_pmu_register(&pmu, metag_pmu->name, PERF_TYPE_RAW);
out:
return ret;
}
diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
index 3c475d6..13c3f0e 100644
--- a/arch/powerpc/perf/power7-pmu.c
+++ b/arch/powerpc/perf/power7-pmu.c
@@ -62,6 +62,29 @@
#define PME_PM_BRU_FIN 0x10068
#define PME_PM_BRU_MPRED 0x400f6

+#define PME_PM_CMPLU_STALL_FXU 0x20014
+#define PME_PM_CMPLU_STALL_DIV 0x40014
+#define PME_PM_CMPLU_STALL_SCALAR 0x40012
+#define PME_PM_CMPLU_STALL_SCALAR_LONG 0x20018
+#define PME_PM_CMPLU_STALL_VECTOR 0x2001c
+#define PME_PM_CMPLU_STALL_VECTOR_LONG 0x4004a
+#define PME_PM_CMPLU_STALL_LSU 0x20012
+#define PME_PM_CMPLU_STALL_REJECT 0x40016
+#define PME_PM_CMPLU_STALL_ERAT_MISS 0x40018
+#define PME_PM_CMPLU_STALL_DCACHE_MISS 0x20016
+#define PME_PM_CMPLU_STALL_STORE 0x2004a
+#define PME_PM_CMPLU_STALL_THRD 0x1001c
+#define PME_PM_CMPLU_STALL_IFU 0x4004c
+#define PME_PM_CMPLU_STALL_BRU 0x4004e
+#define PME_PM_GCT_NOSLOT_IC_MISS 0x2001a
+#define PME_PM_GCT_NOSLOT_BR_MPRED 0x4001a
+#define PME_PM_GCT_NOSLOT_BR_MPRED_IC_MISS 0x4001c
+#define PME_PM_GRP_CMPL 0x30004
+#define PME_PM_1PLUS_PPC_CMPL 0x100f2
+#define PME_PM_CMPLU_STALL_DFU 0x2003c
+#define PME_PM_RUN_CYC 0x200f4
+#define PME_PM_RUN_INST_CMPL 0x400fa
+
/*
* Layout of constraint bits:
* 6666555555555544444444443333333333222222222211111111110000000000
@@ -393,6 +416,31 @@ POWER_EVENT_ATTR(LD_MISS_L1, LD_MISS_L1);
POWER_EVENT_ATTR(BRU_FIN, BRU_FIN)
POWER_EVENT_ATTR(BRU_MPRED, BRU_MPRED);

+POWER_EVENT_ATTR(CMPLU_STALL_FXU, CMPLU_STALL_FXU);
+POWER_EVENT_ATTR(CMPLU_STALL_DIV, CMPLU_STALL_DIV);
+POWER_EVENT_ATTR(CMPLU_STALL_SCALAR, CMPLU_STALL_SCALAR);
+POWER_EVENT_ATTR(CMPLU_STALL_SCALAR_LONG, CMPLU_STALL_SCALAR_LONG);
+POWER_EVENT_ATTR(CMPLU_STALL_VECTOR, CMPLU_STALL_VECTOR);
+POWER_EVENT_ATTR(CMPLU_STALL_VECTOR_LONG, CMPLU_STALL_VECTOR_LONG);
+POWER_EVENT_ATTR(CMPLU_STALL_LSU, CMPLU_STALL_LSU);
+POWER_EVENT_ATTR(CMPLU_STALL_REJECT, CMPLU_STALL_REJECT);
+
+POWER_EVENT_ATTR(CMPLU_STALL_ERAT_MISS, CMPLU_STALL_ERAT_MISS);
+POWER_EVENT_ATTR(CMPLU_STALL_DCACHE_MISS, CMPLU_STALL_DCACHE_MISS);
+POWER_EVENT_ATTR(CMPLU_STALL_STORE, CMPLU_STALL_STORE);
+POWER_EVENT_ATTR(CMPLU_STALL_THRD, CMPLU_STALL_THRD);
+POWER_EVENT_ATTR(CMPLU_STALL_IFU, CMPLU_STALL_IFU);
+POWER_EVENT_ATTR(CMPLU_STALL_BRU, CMPLU_STALL_BRU);
+POWER_EVENT_ATTR(GCT_NOSLOT_IC_MISS, GCT_NOSLOT_IC_MISS);
+
+POWER_EVENT_ATTR(GCT_NOSLOT_BR_MPRED, GCT_NOSLOT_BR_MPRED);
+POWER_EVENT_ATTR(GCT_NOSLOT_BR_MPRED_IC_MISS, GCT_NOSLOT_BR_MPRED_IC_MISS);
+POWER_EVENT_ATTR(GRP_CMPL, GRP_CMPL);
+POWER_EVENT_ATTR(1PLUS_PPC_CMPL, 1PLUS_PPC_CMPL);
+POWER_EVENT_ATTR(CMPLU_STALL_DFU, CMPLU_STALL_DFU);
+POWER_EVENT_ATTR(RUN_CYC, RUN_CYC);
+POWER_EVENT_ATTR(RUN_INST_CMPL, RUN_INST_CMPL);
+
static struct attribute *power7_events_attr[] = {
GENERIC_EVENT_PTR(CYC),
GENERIC_EVENT_PTR(GCT_NOSLOT_CYC),
@@ -411,6 +459,31 @@ static struct attribute *power7_events_attr[] = {
POWER_EVENT_PTR(LD_MISS_L1),
POWER_EVENT_PTR(BRU_FIN),
POWER_EVENT_PTR(BRU_MPRED),
+
+ POWER_EVENT_PTR(CMPLU_STALL_FXU),
+ POWER_EVENT_PTR(CMPLU_STALL_DIV),
+ POWER_EVENT_PTR(CMPLU_STALL_SCALAR),
+ POWER_EVENT_PTR(CMPLU_STALL_SCALAR_LONG),
+ POWER_EVENT_PTR(CMPLU_STALL_VECTOR),
+ POWER_EVENT_PTR(CMPLU_STALL_VECTOR_LONG),
+ POWER_EVENT_PTR(CMPLU_STALL_LSU),
+ POWER_EVENT_PTR(CMPLU_STALL_REJECT),
+
+ POWER_EVENT_PTR(CMPLU_STALL_ERAT_MISS),
+ POWER_EVENT_PTR(CMPLU_STALL_DCACHE_MISS),
+ POWER_EVENT_PTR(CMPLU_STALL_STORE),
+ POWER_EVENT_PTR(CMPLU_STALL_THRD),
+ POWER_EVENT_PTR(CMPLU_STALL_IFU),
+ POWER_EVENT_PTR(CMPLU_STALL_BRU),
+ POWER_EVENT_PTR(GCT_NOSLOT_IC_MISS),
+ POWER_EVENT_PTR(GCT_NOSLOT_BR_MPRED),
+
+ POWER_EVENT_PTR(GCT_NOSLOT_BR_MPRED_IC_MISS),
+ POWER_EVENT_PTR(GRP_CMPL),
+ POWER_EVENT_PTR(1PLUS_PPC_CMPL),
+ POWER_EVENT_PTR(CMPLU_STALL_DFU),
+ POWER_EVENT_PTR(RUN_CYC),
+ POWER_EVENT_PTR(RUN_INST_CMPL),
NULL
};

diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index cf1a471..bccfca6 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -34,8 +34,6 @@
#include <asm/sys_ia32.h>
#include <asm/smap.h>

-#define FIX_EFLAGS __FIX_EFLAGS
-
int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
{
int err = 0;
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index 57cb634..8249df4 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -29,6 +29,9 @@
#define ARCH_PERFMON_EVENTSEL_INV (1ULL << 23)
#define ARCH_PERFMON_EVENTSEL_CMASK 0xFF000000ULL

+#define HSW_IN_TX (1ULL << 32)
+#define HSW_IN_TX_CHECKPOINTED (1ULL << 33)
+
#define AMD64_EVENTSEL_INT_CORE_ENABLE (1ULL << 36)
#define AMD64_EVENTSEL_GUESTONLY (1ULL << 40)
#define AMD64_EVENTSEL_HOSTONLY (1ULL << 41)
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index beff97f..7a95816 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -7,10 +7,10 @@

#include <asm/processor-flags.h>

-#define __FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | \
+#define FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | \
X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
- X86_EFLAGS_CF)
+ X86_EFLAGS_CF | X86_EFLAGS_RF)

void signal_fault(struct pt_regs *regs, void __user *frame, char *where);

diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index 2af848d..bb04650 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -170,6 +170,9 @@
#define MSR_KNC_EVNTSEL0 0x00000028
#define MSR_KNC_EVNTSEL1 0x00000029

+/* Alternative perfctr range with full access. */
+#define MSR_IA32_PMC0 0x000004c1
+
/* AMD64 MSRs. Not complete. See the architecture manual for a more
complete list. */

diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index b0684e4..47b56a7 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -31,11 +31,15 @@ obj-$(CONFIG_PERF_EVENTS) += perf_event.o

ifdef CONFIG_PERF_EVENTS
obj-$(CONFIG_CPU_SUP_AMD) += perf_event_amd.o perf_event_amd_uncore.o
+ifdef CONFIG_AMD_IOMMU
+obj-$(CONFIG_CPU_SUP_AMD) += perf_event_amd_iommu.o
+endif
obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_p6.o perf_event_knc.o perf_event_p4.o
obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_intel_lbr.o perf_event_intel_ds.o perf_event_intel.o
obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_intel_uncore.o
endif

+
obj-$(CONFIG_X86_MCE) += mcheck/
obj-$(CONFIG_MTRR) += mtrr/

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 1025f3c..9e581c5 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -403,7 +403,8 @@ int x86_pmu_hw_config(struct perf_event *event)
* check that PEBS LBR correction does not conflict with
* whatever the user is asking with attr->branch_sample_type
*/
- if (event->attr.precise_ip > 1) {
+ if (event->attr.precise_ip > 1 &&
+ x86_pmu.intel_cap.pebs_format < 2) {
u64 *br_type = &event->attr.branch_sample_type;

if (has_branch_stack(event)) {
@@ -568,7 +569,7 @@ struct sched_state {
struct perf_sched {
int max_weight;
int max_events;
- struct event_constraint **constraints;
+ struct perf_event **events;
struct sched_state state;
int saved_states;
struct sched_state saved[SCHED_STATES_MAX];
@@ -577,7 +578,7 @@ struct perf_sched {
/*
* Initialize interator that runs through all events and counters.
*/
-static void perf_sched_init(struct perf_sched *sched, struct event_constraint **c,
+static void perf_sched_init(struct perf_sched *sched, struct perf_event **events,
int num, int wmin, int wmax)
{
int idx;
@@ -585,10 +586,10 @@ static void perf_sched_init(struct perf_sched *sched, struct event_constraint **
memset(sched, 0, sizeof(*sched));
sched->max_events = num;
sched->max_weight = wmax;
- sched->constraints = c;
+ sched->events = events;

for (idx = 0; idx < num; idx++) {
- if (c[idx]->weight == wmin)
+ if (events[idx]->hw.constraint->weight == wmin)
break;
}

@@ -635,8 +636,7 @@ static bool __perf_sched_find_counter(struct perf_sched *sched)
if (sched->state.event >= sched->max_events)
return false;

- c = sched->constraints[sched->state.event];
-
+ c = sched->events[sched->state.event]->hw.constraint;
/* Prefer fixed purpose counters */
if (c->idxmsk64 & (~0ULL << INTEL_PMC_IDX_FIXED)) {
idx = INTEL_PMC_IDX_FIXED;
@@ -694,7 +694,7 @@ static bool perf_sched_next_event(struct perf_sched *sched)
if (sched->state.weight > sched->max_weight)
return false;
}
- c = sched->constraints[sched->state.event];
+ c = sched->events[sched->state.event]->hw.constraint;
} while (c->weight != sched->state.weight);

sched->state.counter = 0; /* start with first counter */
@@ -705,12 +705,12 @@ static bool perf_sched_next_event(struct perf_sched *sched)
/*
* Assign a counter for each event.
*/
-int perf_assign_events(struct event_constraint **constraints, int n,
+int perf_assign_events(struct perf_event **events, int n,
int wmin, int wmax, int *assign)
{
struct perf_sched sched;

- perf_sched_init(&sched, constraints, n, wmin, wmax);
+ perf_sched_init(&sched, events, n, wmin, wmax);

do {
if (!perf_sched_find_counter(&sched))
@@ -724,16 +724,19 @@ int perf_assign_events(struct event_constraint **constraints, int n,

int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
{
- struct event_constraint *c, *constraints[X86_PMC_IDX_MAX];
+ struct event_constraint *c;
unsigned long used_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
+ struct perf_event *e;
int i, wmin, wmax, num = 0;
struct hw_perf_event *hwc;

bitmap_zero(used_mask, X86_PMC_IDX_MAX);

for (i = 0, wmin = X86_PMC_IDX_MAX, wmax = 0; i < n; i++) {
+ hwc = &cpuc->event_list[i]->hw;
c = x86_pmu.get_event_constraints(cpuc, cpuc->event_list[i]);
- constraints[i] = c;
+ hwc->constraint = c;
+
wmin = min(wmin, c->weight);
wmax = max(wmax, c->weight);
}
@@ -743,7 +746,7 @@ int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
*/
for (i = 0; i < n; i++) {
hwc = &cpuc->event_list[i]->hw;
- c = constraints[i];
+ c = hwc->constraint;

/* never assigned */
if (hwc->idx == -1)
@@ -764,16 +767,35 @@ int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)

/* slow path */
if (i != n)
- num = perf_assign_events(constraints, n, wmin, wmax, assign);
+ num = perf_assign_events(cpuc->event_list, n, wmin,
+ wmax, assign);

/*
+ * Mark the event as committed, so we do not put_constraint()
+ * in case new events are added and fail scheduling.
+ */
+ if (!num && assign) {
+ for (i = 0; i < n; i++) {
+ e = cpuc->event_list[i];
+ e->hw.flags |= PERF_X86_EVENT_COMMITTED;
+ }
+ }
+ /*
* scheduling failed or is just a simulation,
* free resources if necessary
*/
if (!assign || num) {
for (i = 0; i < n; i++) {
+ e = cpuc->event_list[i];
+ /*
+ * do not put_constraint() on comitted events,
+ * because they are good to go
+ */
+ if ((e->hw.flags & PERF_X86_EVENT_COMMITTED))
+ continue;
+
if (x86_pmu.put_event_constraints)
- x86_pmu.put_event_constraints(cpuc, cpuc->event_list[i]);
+ x86_pmu.put_event_constraints(cpuc, e);
}
}
return num ? -EINVAL : 0;
@@ -1153,6 +1175,11 @@ static void x86_pmu_del(struct perf_event *event, int flags)
int i;

/*
+ * event is descheduled
+ */
+ event->hw.flags &= ~PERF_X86_EVENT_COMMITTED;
+
+ /*
* If we're called during a txn, we don't need to do anything.
* The events never got scheduled and ->cancel_txn will truncate
* the event_list.
@@ -1249,10 +1276,20 @@ void perf_events_lapic_init(void)
static int __kprobes
perf_event_nmi_handler(unsigned int cmd, struct pt_regs *regs)
{
+ int ret;
+ u64 start_clock;
+ u64 finish_clock;
+
if (!atomic_read(&active_events))
return NMI_DONE;

- return x86_pmu.handle_irq(regs);
+ start_clock = local_clock();
+ ret = x86_pmu.handle_irq(regs);
+ finish_clock = local_clock();
+
+ perf_sample_event_took(finish_clock - start_clock);
+
+ return ret;
}

struct event_constraint emptyconstraint;
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index ba9aadf..97e557b 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -63,10 +63,12 @@ struct event_constraint {
int flags;
};
/*
- * struct event_constraint flags
+ * struct hw_perf_event.flags flags
*/
#define PERF_X86_EVENT_PEBS_LDLAT 0x1 /* ld+ldlat data address sampling */
#define PERF_X86_EVENT_PEBS_ST 0x2 /* st data address sampling */
+#define PERF_X86_EVENT_PEBS_ST_HSW 0x4 /* haswell style st data sampling */
+#define PERF_X86_EVENT_COMMITTED 0x8 /* event passed commit_txn */

struct amd_nb {
int nb_id; /* NorthBridge id */
@@ -227,11 +229,14 @@ struct cpu_hw_events {
* - inv
* - edge
* - cnt-mask
+ * - in_tx
+ * - in_tx_checkpointed
* The other filters are supported by fixed counters.
* The any-thread option is supported starting with v3.
*/
+#define FIXED_EVENT_FLAGS (X86_RAW_EVENT_MASK|HSW_IN_TX|HSW_IN_TX_CHECKPOINTED)
#define FIXED_EVENT_CONSTRAINT(c, n) \
- EVENT_CONSTRAINT(c, (1ULL << (32+n)), X86_RAW_EVENT_MASK)
+ EVENT_CONSTRAINT(c, (1ULL << (32+n)), FIXED_EVENT_FLAGS)

/*
* Constraint on the Event code + UMask
@@ -247,6 +252,11 @@ struct cpu_hw_events {
__EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK, \
HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST)

+/* DataLA version of store sampling without extra enable bit. */
+#define INTEL_PST_HSW_CONSTRAINT(c, n) \
+ __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST_HSW)
+
#define EVENT_CONSTRAINT_END \
EVENT_CONSTRAINT(0, 0, 0)

@@ -301,6 +311,11 @@ union perf_capabilities {
u64 pebs_arch_reg:1;
u64 pebs_format:4;
u64 smm_freeze:1;
+ /*
+ * PMU supports separate counter range for writing
+ * values > 32bit.
+ */
+ u64 full_width_write:1;
};
u64 capabilities;
};
@@ -375,6 +390,7 @@ struct x86_pmu {
struct event_constraint *event_constraints;
struct x86_pmu_quirk *quirks;
int perfctr_second_write;
+ bool late_ack;

/*
* sysfs attrs
@@ -528,7 +544,7 @@ static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,

void x86_pmu_enable_all(int added);

-int perf_assign_events(struct event_constraint **constraints, int n,
+int perf_assign_events(struct perf_event **events, int n,
int wmin, int wmax, int *assign);
int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign);

@@ -633,6 +649,8 @@ extern struct event_constraint intel_snb_pebs_event_constraints[];

extern struct event_constraint intel_ivb_pebs_event_constraints[];

+extern struct event_constraint intel_hsw_pebs_event_constraints[];
+
struct event_constraint *intel_pebs_constraints(struct perf_event *event);

void intel_pmu_pebs_enable(struct perf_event *event);
diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
index 7e28d94..4cbe032 100644
--- a/arch/x86/kernel/cpu/perf_event_amd.c
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -648,48 +648,48 @@ static __initconst const struct x86_pmu amd_pmu = {
.cpu_dead = amd_pmu_cpu_dead,
};

-static int setup_event_constraints(void)
+static int __init amd_core_pmu_init(void)
{
- if (boot_cpu_data.x86 == 0x15)
+ if (!cpu_has_perfctr_core)
+ return 0;
+
+ switch (boot_cpu_data.x86) {
+ case 0x15:
+ pr_cont("Fam15h ");
x86_pmu.get_event_constraints = amd_get_event_constraints_f15h;
- return 0;
-}
+ break;

-static int setup_perfctr_core(void)
-{
- if (!cpu_has_perfctr_core) {
- WARN(x86_pmu.get_event_constraints == amd_get_event_constraints_f15h,
- KERN_ERR "Odd, counter constraints enabled but no core perfctrs detected!");
+ default:
+ pr_err("core perfctr but no constraints; unknown hardware!\n");
return -ENODEV;
}

- WARN(x86_pmu.get_event_constraints == amd_get_event_constraints,
- KERN_ERR "hw perf events core counters need constraints handler!");
-
/*
* If core performance counter extensions exists, we must use
* MSR_F15H_PERF_CTL/MSR_F15H_PERF_CTR msrs. See also
- * x86_pmu_addr_offset().
+ * amd_pmu_addr_offset().
*/
x86_pmu.eventsel = MSR_F15H_PERF_CTL;
x86_pmu.perfctr = MSR_F15H_PERF_CTR;
x86_pmu.num_counters = AMD64_NUM_COUNTERS_CORE;

- printk(KERN_INFO "perf: AMD core performance counters detected\n");
-
+ pr_cont("core perfctr, ");
return 0;
}

__init int amd_pmu_init(void)
{
+ int ret;
+
/* Performance-monitoring supported from K7 and later: */
if (boot_cpu_data.x86 < 6)
return -ENODEV;

x86_pmu = amd_pmu;

- setup_event_constraints();
- setup_perfctr_core();
+ ret = amd_core_pmu_init();
+ if (ret)
+ return ret;

/* Events are common for all AMDs */
memcpy(hw_cache_event_ids, amd_hw_cache_event_ids,
diff --git a/arch/x86/kernel/cpu/perf_event_amd_iommu.c b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
new file mode 100644
index 0000000..0db655e
--- /dev/null
+++ b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
@@ -0,0 +1,504 @@
+/*
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Steven Kinney <Steven.Kinney@amd.com>
+ * Author: Suravee Suthikulpanit <Suraveee.Suthikulpanit@amd.com>
+ *
+ * Perf: amd_iommu - AMD IOMMU Performance Counter PMU implementation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/perf_event.h>
+#include <linux/module.h>
+#include <linux/cpumask.h>
+#include <linux/slab.h>
+
+#include "perf_event.h"
+#include "perf_event_amd_iommu.h"
+
+#define COUNTER_SHIFT 16
+
+#define _GET_BANK(ev) ((u8)(ev->hw.extra_reg.reg >> 8))
+#define _GET_CNTR(ev) ((u8)(ev->hw.extra_reg.reg))
+
+/* iommu pmu config masks */
+#define _GET_CSOURCE(ev) ((ev->hw.config & 0xFFULL))
+#define _GET_DEVID(ev) ((ev->hw.config >> 8) & 0xFFFFULL)
+#define _GET_PASID(ev) ((ev->hw.config >> 24) & 0xFFFFULL)
+#define _GET_DOMID(ev) ((ev->hw.config >> 40) & 0xFFFFULL)
+#define _GET_DEVID_MASK(ev) ((ev->hw.extra_reg.config) & 0xFFFFULL)
+#define _GET_PASID_MASK(ev) ((ev->hw.extra_reg.config >> 16) & 0xFFFFULL)
+#define _GET_DOMID_MASK(ev) ((ev->hw.extra_reg.config >> 32) & 0xFFFFULL)
+
+static struct perf_amd_iommu __perf_iommu;
+
+struct perf_amd_iommu {
+ struct pmu pmu;
+ u8 max_banks;
+ u8 max_counters;
+ u64 cntr_assign_mask;
+ raw_spinlock_t lock;
+ const struct attribute_group *attr_groups[4];
+};
+
+#define format_group attr_groups[0]
+#define cpumask_group attr_groups[1]
+#define events_group attr_groups[2]
+#define null_group attr_groups[3]
+
+/*---------------------------------------------
+ * sysfs format attributes
+ *---------------------------------------------*/
+PMU_FORMAT_ATTR(csource, "config:0-7");
+PMU_FORMAT_ATTR(devid, "config:8-23");
+PMU_FORMAT_ATTR(pasid, "config:24-39");
+PMU_FORMAT_ATTR(domid, "config:40-55");
+PMU_FORMAT_ATTR(devid_mask, "config1:0-15");
+PMU_FORMAT_ATTR(pasid_mask, "config1:16-31");
+PMU_FORMAT_ATTR(domid_mask, "config1:32-47");
+
+static struct attribute *iommu_format_attrs[] = {
+ &format_attr_csource.attr,
+ &format_attr_devid.attr,
+ &format_attr_pasid.attr,
+ &format_attr_domid.attr,
+ &format_attr_devid_mask.attr,
+ &format_attr_pasid_mask.attr,
+ &format_attr_domid_mask.attr,
+ NULL,
+};
+
+static struct attribute_group amd_iommu_format_group = {
+ .name = "format",
+ .attrs = iommu_format_attrs,
+};
+
+/*---------------------------------------------
+ * sysfs events attributes
+ *---------------------------------------------*/
+struct amd_iommu_event_desc {
+ struct kobj_attribute attr;
+ const char *event;
+};
+
+static ssize_t _iommu_event_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct amd_iommu_event_desc *event =
+ container_of(attr, struct amd_iommu_event_desc, attr);
+ return sprintf(buf, "%s\n", event->event);
+}
+
+#define AMD_IOMMU_EVENT_DESC(_name, _event) \
+{ \
+ .attr = __ATTR(_name, 0444, _iommu_event_show, NULL), \
+ .event = _event, \
+}
+
+static struct amd_iommu_event_desc amd_iommu_v2_event_descs[] = {
+ AMD_IOMMU_EVENT_DESC(mem_pass_untrans, "csource=0x01"),
+ AMD_IOMMU_EVENT_DESC(mem_pass_pretrans, "csource=0x02"),
+ AMD_IOMMU_EVENT_DESC(mem_pass_excl, "csource=0x03"),
+ AMD_IOMMU_EVENT_DESC(mem_target_abort, "csource=0x04"),
+ AMD_IOMMU_EVENT_DESC(mem_trans_total, "csource=0x05"),
+ AMD_IOMMU_EVENT_DESC(mem_iommu_tlb_pte_hit, "csource=0x06"),
+ AMD_IOMMU_EVENT_DESC(mem_iommu_tlb_pte_mis, "csource=0x07"),
+ AMD_IOMMU_EVENT_DESC(mem_iommu_tlb_pde_hit, "csource=0x08"),
+ AMD_IOMMU_EVENT_DESC(mem_iommu_tlb_pde_mis, "csource=0x09"),
+ AMD_IOMMU_EVENT_DESC(mem_dte_hit, "csource=0x0a"),
+ AMD_IOMMU_EVENT_DESC(mem_dte_mis, "csource=0x0b"),
+ AMD_IOMMU_EVENT_DESC(page_tbl_read_tot, "csource=0x0c"),
+ AMD_IOMMU_EVENT_DESC(page_tbl_read_nst, "csource=0x0d"),
+ AMD_IOMMU_EVENT_DESC(page_tbl_read_gst, "csource=0x0e"),
+ AMD_IOMMU_EVENT_DESC(int_dte_hit, "csource=0x0f"),
+ AMD_IOMMU_EVENT_DESC(int_dte_mis, "csource=0x10"),
+ AMD_IOMMU_EVENT_DESC(cmd_processed, "csource=0x11"),
+ AMD_IOMMU_EVENT_DESC(cmd_processed_inv, "csource=0x12"),
+ AMD_IOMMU_EVENT_DESC(tlb_inv, "csource=0x13"),
+ { /* end: all zeroes */ },
+};
+
+/*---------------------------------------------
+ * sysfs cpumask attributes
+ *---------------------------------------------*/
+static cpumask_t iommu_cpumask;
+
+static ssize_t _iommu_cpumask_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int n = cpulist_scnprintf(buf, PAGE_SIZE - 2, &iommu_cpumask);
+ buf[n++] = '\n';
+ buf[n] = '\0';
+ return n;
+}
+static DEVICE_ATTR(cpumask, S_IRUGO, _iommu_cpumask_show, NULL);
+
+static struct attribute *iommu_cpumask_attrs[] = {
+ &dev_attr_cpumask.attr,
+ NULL,
+};
+
+static struct attribute_group amd_iommu_cpumask_group = {
+ .attrs = iommu_cpumask_attrs,
+};
+
+/*---------------------------------------------*/
+
+static int get_next_avail_iommu_bnk_cntr(struct perf_amd_iommu *perf_iommu)
+{
+ unsigned long flags;
+ int shift, bank, cntr, retval;
+ int max_banks = perf_iommu->max_banks;
+ int max_cntrs = perf_iommu->max_counters;
+
+ raw_spin_lock_irqsave(&perf_iommu->lock, flags);
+
+ for (bank = 0, shift = 0; bank < max_banks; bank++) {
+ for (cntr = 0; cntr < max_cntrs; cntr++) {
+ shift = bank + (bank*3) + cntr;
+ if (perf_iommu->cntr_assign_mask & (1ULL<<shift)) {
+ continue;
+ } else {
+ perf_iommu->cntr_assign_mask |= (1ULL<<shift);
+ retval = ((u16)((u16)bank<<8) | (u8)(cntr));
+ goto out;
+ }
+ }
+ }
+ retval = -ENOSPC;
+out:
+ raw_spin_unlock_irqrestore(&perf_iommu->lock, flags);
+ return retval;
+}
+
+static int clear_avail_iommu_bnk_cntr(struct perf_amd_iommu *perf_iommu,
+ u8 bank, u8 cntr)
+{
+ unsigned long flags;
+ int max_banks, max_cntrs;
+ int shift = 0;
+
+ max_banks = perf_iommu->max_banks;
+ max_cntrs = perf_iommu->max_counters;
+
+ if ((bank > max_banks) || (cntr > max_cntrs))
+ return -EINVAL;
+
+ shift = bank + cntr + (bank*3);
+
+ raw_spin_lock_irqsave(&perf_iommu->lock, flags);
+ perf_iommu->cntr_assign_mask &= ~(1ULL<<shift);
+ raw_spin_unlock_irqrestore(&perf_iommu->lock, flags);
+
+ return 0;
+}
+
+static int perf_iommu_event_init(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct perf_amd_iommu *perf_iommu;
+ u64 config, config1;
+
+ /* test the event attr type check for PMU enumeration */
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ /*
+ * IOMMU counters are shared across all cores.
+ * Therefore, it does not support per-process mode.
+ * Also, it does not support event sampling mode.
+ */
+ if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK)
+ return -EINVAL;
+
+ /* IOMMU counters do not have usr/os/guest/host bits */
+ if (event->attr.exclude_user || event->attr.exclude_kernel ||
+ event->attr.exclude_host || event->attr.exclude_guest)
+ return -EINVAL;
+
+ if (event->cpu < 0)
+ return -EINVAL;
+
+ perf_iommu = &__perf_iommu;
+
+ if (event->pmu != &perf_iommu->pmu)
+ return -ENOENT;
+
+ if (perf_iommu) {
+ config = event->attr.config;
+ config1 = event->attr.config1;
+ } else {
+ return -EINVAL;
+ }
+
+ /* integrate with iommu base devid (0000), assume one iommu */
+ perf_iommu->max_banks =
+ amd_iommu_pc_get_max_banks(IOMMU_BASE_DEVID);
+ perf_iommu->max_counters =
+ amd_iommu_pc_get_max_counters(IOMMU_BASE_DEVID);
+ if ((perf_iommu->max_banks == 0) || (perf_iommu->max_counters == 0))
+ return -EINVAL;
+
+ /* update the hw_perf_event struct with the iommu config data */
+ hwc->config = config;
+ hwc->extra_reg.config = config1;
+
+ return 0;
+}
+
+static void perf_iommu_enable_event(struct perf_event *ev)
+{
+ u8 csource = _GET_CSOURCE(ev);
+ u16 devid = _GET_DEVID(ev);
+ u64 reg = 0ULL;
+
+ reg = csource;
+ amd_iommu_pc_get_set_reg_val(devid,
+ _GET_BANK(ev), _GET_CNTR(ev) ,
+ IOMMU_PC_COUNTER_SRC_REG, &reg, true);
+
+ reg = 0ULL | devid | (_GET_DEVID_MASK(ev) << 32);
+ if (reg)
+ reg |= (1UL << 31);
+ amd_iommu_pc_get_set_reg_val(devid,
+ _GET_BANK(ev), _GET_CNTR(ev) ,
+ IOMMU_PC_DEVID_MATCH_REG, &reg, true);
+
+ reg = 0ULL | _GET_PASID(ev) | (_GET_PASID_MASK(ev) << 32);
+ if (reg)
+ reg |= (1UL << 31);
+ amd_iommu_pc_get_set_reg_val(devid,
+ _GET_BANK(ev), _GET_CNTR(ev) ,
+ IOMMU_PC_PASID_MATCH_REG, &reg, true);
+
+ reg = 0ULL | _GET_DOMID(ev) | (_GET_DOMID_MASK(ev) << 32);
+ if (reg)
+ reg |= (1UL << 31);
+ amd_iommu_pc_get_set_reg_val(devid,
+ _GET_BANK(ev), _GET_CNTR(ev) ,
+ IOMMU_PC_DOMID_MATCH_REG, &reg, true);
+}
+
+static void perf_iommu_disable_event(struct perf_event *event)
+{
+ u64 reg = 0ULL;
+
+ amd_iommu_pc_get_set_reg_val(_GET_DEVID(event),
+ _GET_BANK(event), _GET_CNTR(event),
+ IOMMU_PC_COUNTER_SRC_REG, &reg, true);
+}
+
+static void perf_iommu_start(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ pr_debug("perf: amd_iommu:perf_iommu_start\n");
+ if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED)))
+ return;
+
+ WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE));
+ hwc->state = 0;
+
+ if (flags & PERF_EF_RELOAD) {
+ u64 prev_raw_count = local64_read(&hwc->prev_count);
+ amd_iommu_pc_get_set_reg_val(_GET_DEVID(event),
+ _GET_BANK(event), _GET_CNTR(event),
+ IOMMU_PC_COUNTER_REG, &prev_raw_count, true);
+ }
+
+ perf_iommu_enable_event(event);
+ perf_event_update_userpage(event);
+
+}
+
+static void perf_iommu_read(struct perf_event *event)
+{
+ u64 count = 0ULL;
+ u64 prev_raw_count = 0ULL;
+ u64 delta = 0ULL;
+ struct hw_perf_event *hwc = &event->hw;
+ pr_debug("perf: amd_iommu:perf_iommu_read\n");
+
+ amd_iommu_pc_get_set_reg_val(_GET_DEVID(event),
+ _GET_BANK(event), _GET_CNTR(event),
+ IOMMU_PC_COUNTER_REG, &count, false);
+
+ /* IOMMU pc counter register is only 48 bits */
+ count &= 0xFFFFFFFFFFFFULL;
+
+ prev_raw_count = local64_read(&hwc->prev_count);
+ if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
+ count) != prev_raw_count)
+ return;
+
+ /* Handling 48-bit counter overflowing */
+ delta = (count << COUNTER_SHIFT) - (prev_raw_count << COUNTER_SHIFT);
+ delta >>= COUNTER_SHIFT;
+ local64_add(delta, &event->count);
+
+}
+
+static void perf_iommu_stop(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 config;
+
+ pr_debug("perf: amd_iommu:perf_iommu_stop\n");
+
+ if (hwc->state & PERF_HES_UPTODATE)
+ return;
+
+ perf_iommu_disable_event(event);
+ WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
+ hwc->state |= PERF_HES_STOPPED;
+
+ if (hwc->state & PERF_HES_UPTODATE)
+ return;
+
+ config = hwc->config;
+ perf_iommu_read(event);
+ hwc->state |= PERF_HES_UPTODATE;
+}
+
+static int perf_iommu_add(struct perf_event *event, int flags)
+{
+ int retval;
+ struct perf_amd_iommu *perf_iommu =
+ container_of(event->pmu, struct perf_amd_iommu, pmu);
+
+ pr_debug("perf: amd_iommu:perf_iommu_add\n");
+ event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+
+ /* request an iommu bank/counter */
+ retval = get_next_avail_iommu_bnk_cntr(perf_iommu);
+ if (retval != -ENOSPC)
+ event->hw.extra_reg.reg = (u16)retval;
+ else
+ return retval;
+
+ if (flags & PERF_EF_START)
+ perf_iommu_start(event, PERF_EF_RELOAD);
+
+ return 0;
+}
+
+static void perf_iommu_del(struct perf_event *event, int flags)
+{
+ struct perf_amd_iommu *perf_iommu =
+ container_of(event->pmu, struct perf_amd_iommu, pmu);
+
+ pr_debug("perf: amd_iommu:perf_iommu_del\n");
+ perf_iommu_stop(event, PERF_EF_UPDATE);
+
+ /* clear the assigned iommu bank/counter */
+ clear_avail_iommu_bnk_cntr(perf_iommu,
+ _GET_BANK(event),
+ _GET_CNTR(event));
+
+ perf_event_update_userpage(event);
+}
+
+static __init int _init_events_attrs(struct perf_amd_iommu *perf_iommu)
+{
+ struct attribute **attrs;
+ struct attribute_group *attr_group;
+ int i = 0, j;
+
+ while (amd_iommu_v2_event_descs[i].attr.attr.name)
+ i++;
+
+ attr_group = kzalloc(sizeof(struct attribute *)
+ * (i + 1) + sizeof(*attr_group), GFP_KERNEL);
+ if (!attr_group)
+ return -ENOMEM;
+
+ attrs = (struct attribute **)(attr_group + 1);
+ for (j = 0; j < i; j++)
+ attrs[j] = &amd_iommu_v2_event_descs[j].attr.attr;
+
+ attr_group->name = "events";
+ attr_group->attrs = attrs;
+ perf_iommu->events_group = attr_group;
+
+ return 0;
+}
+
+static __init void amd_iommu_pc_exit(void)
+{
+ if (__perf_iommu.events_group != NULL) {
+ kfree(__perf_iommu.events_group);
+ __perf_iommu.events_group = NULL;
+ }
+}
+
+static __init int _init_perf_amd_iommu(
+ struct perf_amd_iommu *perf_iommu, char *name)
+{
+ int ret;
+
+ raw_spin_lock_init(&perf_iommu->lock);
+
+ /* Init format attributes */
+ perf_iommu->format_group = &amd_iommu_format_group;
+
+ /* Init cpumask attributes to only core 0 */
+ cpumask_set_cpu(0, &iommu_cpumask);
+ perf_iommu->cpumask_group = &amd_iommu_cpumask_group;
+
+ /* Init events attributes */
+ if (_init_events_attrs(perf_iommu) != 0)
+ pr_err("perf: amd_iommu: Only support raw events.\n");
+
+ /* Init null attributes */
+ perf_iommu->null_group = NULL;
+ perf_iommu->pmu.attr_groups = perf_iommu->attr_groups;
+
+ ret = perf_pmu_register(&perf_iommu->pmu, name, -1);
+ if (ret) {
+ pr_err("perf: amd_iommu: Failed to initialized.\n");
+ amd_iommu_pc_exit();
+ } else {
+ pr_info("perf: amd_iommu: Detected. (%d banks, %d counters/bank)\n",
+ amd_iommu_pc_get_max_banks(IOMMU_BASE_DEVID),
+ amd_iommu_pc_get_max_counters(IOMMU_BASE_DEVID));
+ }
+
+ return ret;
+}
+
+static struct perf_amd_iommu __perf_iommu = {
+ .pmu = {
+ .event_init = perf_iommu_event_init,
+ .add = perf_iommu_add,
+ .del = perf_iommu_del,
+ .start = perf_iommu_start,
+ .stop = perf_iommu_stop,
+ .read = perf_iommu_read,
+ },
+ .max_banks = 0x00,
+ .max_counters = 0x00,
+ .cntr_assign_mask = 0ULL,
+ .format_group = NULL,
+ .cpumask_group = NULL,
+ .events_group = NULL,
+ .null_group = NULL,
+};
+
+static __init int amd_iommu_pc_init(void)
+{
+ /* Make sure the IOMMU PC resource is available */
+ if (!amd_iommu_pc_supported()) {
+ pr_err("perf: amd_iommu PMU not installed. No support!\n");
+ return -ENODEV;
+ }
+
+ _init_perf_amd_iommu(&__perf_iommu, "amd_iommu");
+
+ return 0;
+}
+
+device_initcall(amd_iommu_pc_init);
diff --git a/arch/x86/kernel/cpu/perf_event_amd_iommu.h b/arch/x86/kernel/cpu/perf_event_amd_iommu.h
new file mode 100644
index 0000000..845d173
--- /dev/null
+++ b/arch/x86/kernel/cpu/perf_event_amd_iommu.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Steven Kinney <Steven.Kinney@amd.com>
+ * Author: Suravee Suthikulpanit <Suraveee.Suthikulpanit@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _PERF_EVENT_AMD_IOMMU_H_
+#define _PERF_EVENT_AMD_IOMMU_H_
+
+/* iommu pc mmio region register indexes */
+#define IOMMU_PC_COUNTER_REG 0x00
+#define IOMMU_PC_COUNTER_SRC_REG 0x08
+#define IOMMU_PC_PASID_MATCH_REG 0x10
+#define IOMMU_PC_DOMID_MATCH_REG 0x18
+#define IOMMU_PC_DEVID_MATCH_REG 0x20
+#define IOMMU_PC_COUNTER_REPORT_REG 0x28
+
+/* maximun specified bank/counters */
+#define PC_MAX_SPEC_BNKS 64
+#define PC_MAX_SPEC_CNTRS 16
+
+/* iommu pc reg masks*/
+#define IOMMU_BASE_DEVID 0x0000
+
+/* amd_iommu_init.c external support functions */
+extern bool amd_iommu_pc_supported(void);
+
+extern u8 amd_iommu_pc_get_max_banks(u16 devid);
+
+extern u8 amd_iommu_pc_get_max_counters(u16 devid);
+
+extern int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr,
+ u8 fxn, u64 *value, bool is_write);
+
+#endif /*_PERF_EVENT_AMD_IOMMU_H_*/
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index a9e2207..fbc9210 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/export.h>

+#include <asm/cpufeature.h>
#include <asm/hardirq.h>
#include <asm/apic.h>

@@ -190,6 +191,22 @@ struct attribute *snb_events_attrs[] = {
NULL,
};

+static struct event_constraint intel_hsw_event_constraints[] = {
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_EVENT_CONSTRAINT(0x48, 0x4), /* L1D_PEND_MISS.* */
+ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */
+ INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */
+ /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */
+ INTEL_EVENT_CONSTRAINT(0x08a3, 0x4),
+ /* CYCLE_ACTIVITY.STALLS_L1D_PENDING */
+ INTEL_EVENT_CONSTRAINT(0x0ca3, 0x4),
+ /* CYCLE_ACTIVITY.CYCLES_NO_EXECUTE */
+ INTEL_EVENT_CONSTRAINT(0x04a3, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
static u64 intel_pmu_event_map(int hw_event)
{
return intel_perfmon_event_map[hw_event];
@@ -872,7 +889,8 @@ static inline bool intel_pmu_needs_lbr_smpl(struct perf_event *event)
return true;

/* implicit branch sampling to correct PEBS skid */
- if (x86_pmu.intel_cap.pebs_trap && event->attr.precise_ip > 1)
+ if (x86_pmu.intel_cap.pebs_trap && event->attr.precise_ip > 1 &&
+ x86_pmu.intel_cap.pebs_format < 2)
return true;

return false;
@@ -1167,15 +1185,11 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
cpuc = &__get_cpu_var(cpu_hw_events);

/*
- * Some chipsets need to unmask the LVTPC in a particular spot
- * inside the nmi handler. As a result, the unmasking was pushed
- * into all the nmi handlers.
- *
- * This handler doesn't seem to have any issues with the unmasking
- * so it was left at the top.
+ * No known reason to not always do late ACK,
+ * but just in case do it opt-in.
*/
- apic_write(APIC_LVTPC, APIC_DM_NMI);
-
+ if (!x86_pmu.late_ack)
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
intel_pmu_disable_all();
handled = intel_pmu_drain_bts_buffer();
status = intel_pmu_get_status();
@@ -1188,8 +1202,12 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
again:
intel_pmu_ack_status(status);
if (++loops > 100) {
- WARN_ONCE(1, "perfevents: irq loop stuck!\n");
- perf_event_print_debug();
+ static bool warned = false;
+ if (!warned) {
+ WARN(1, "perfevents: irq loop stuck!\n");
+ perf_event_print_debug();
+ warned = true;
+ }
intel_pmu_reset();
goto done;
}
@@ -1235,6 +1253,13 @@ again:

done:
intel_pmu_enable_all(0);
+ /*
+ * Only unmask the NMI after the overflow counters
+ * have been reset. This avoids spurious NMIs on
+ * Haswell CPUs.
+ */
+ if (x86_pmu.late_ack)
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
return handled;
}

@@ -1425,7 +1450,6 @@ x86_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event)
if (x86_pmu.event_constraints) {
for_each_event_constraint(c, x86_pmu.event_constraints) {
if ((event->hw.config & c->cmask) == c->code) {
- /* hw.flags zeroed at initialization */
event->hw.flags |= c->flags;
return c;
}
@@ -1473,7 +1497,6 @@ intel_put_shared_regs_event_constraints(struct cpu_hw_events *cpuc,
static void intel_put_event_constraints(struct cpu_hw_events *cpuc,
struct perf_event *event)
{
- event->hw.flags = 0;
intel_put_shared_regs_event_constraints(cpuc, event);
}

@@ -1646,6 +1669,47 @@ static void core_pmu_enable_all(int added)
}
}

+static int hsw_hw_config(struct perf_event *event)
+{
+ int ret = intel_pmu_hw_config(event);
+
+ if (ret)
+ return ret;
+ if (!boot_cpu_has(X86_FEATURE_RTM) && !boot_cpu_has(X86_FEATURE_HLE))
+ return 0;
+ event->hw.config |= event->attr.config & (HSW_IN_TX|HSW_IN_TX_CHECKPOINTED);
+
+ /*
+ * IN_TX/IN_TX-CP filters are not supported by the Haswell PMU with
+ * PEBS or in ANY thread mode. Since the results are non-sensical forbid
+ * this combination.
+ */
+ if ((event->hw.config & (HSW_IN_TX|HSW_IN_TX_CHECKPOINTED)) &&
+ ((event->hw.config & ARCH_PERFMON_EVENTSEL_ANY) ||
+ event->attr.precise_ip > 0))
+ return -EOPNOTSUPP;
+
+ return 0;
+}
+
+static struct event_constraint counter2_constraint =
+ EVENT_CONSTRAINT(0, 0x4, 0);
+
+static struct event_constraint *
+hsw_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event)
+{
+ struct event_constraint *c = intel_get_event_constraints(cpuc, event);
+
+ /* Handle special quirk on in_tx_checkpointed only in counter 2 */
+ if (event->hw.config & HSW_IN_TX_CHECKPOINTED) {
+ if (c->idxmsk64 & (1U << 2))
+ return &counter2_constraint;
+ return &emptyconstraint;
+ }
+
+ return c;
+}
+
PMU_FORMAT_ATTR(event, "config:0-7" );
PMU_FORMAT_ATTR(umask, "config:8-15" );
PMU_FORMAT_ATTR(edge, "config:18" );
@@ -1653,6 +1717,8 @@ PMU_FORMAT_ATTR(pc, "config:19" );
PMU_FORMAT_ATTR(any, "config:21" ); /* v3 + */
PMU_FORMAT_ATTR(inv, "config:23" );
PMU_FORMAT_ATTR(cmask, "config:24-31" );
+PMU_FORMAT_ATTR(in_tx, "config:32");
+PMU_FORMAT_ATTR(in_tx_cp, "config:33");

static struct attribute *intel_arch_formats_attr[] = {
&format_attr_event.attr,
@@ -1807,6 +1873,8 @@ static struct attribute *intel_arch3_formats_attr[] = {
&format_attr_any.attr,
&format_attr_inv.attr,
&format_attr_cmask.attr,
+ &format_attr_in_tx.attr,
+ &format_attr_in_tx_cp.attr,

&format_attr_offcore_rsp.attr, /* XXX do NHM/WSM + SNB breakout */
&format_attr_ldlat.attr, /* PEBS load latency */
@@ -1966,6 +2034,15 @@ static __init void intel_nehalem_quirk(void)
}
}

+EVENT_ATTR_STR(mem-loads, mem_ld_hsw, "event=0xcd,umask=0x1,ldlat=3");
+EVENT_ATTR_STR(mem-stores, mem_st_hsw, "event=0xd0,umask=0x82")
+
+static struct attribute *hsw_events_attrs[] = {
+ EVENT_PTR(mem_ld_hsw),
+ EVENT_PTR(mem_st_hsw),
+ NULL
+};
+
__init int intel_pmu_init(void)
{
union cpuid10_edx edx;
@@ -2189,6 +2266,30 @@ __init int intel_pmu_init(void)
break;


+ case 60: /* Haswell Client */
+ case 70:
+ case 71:
+ case 63:
+ x86_pmu.late_ack = true;
+ memcpy(hw_cache_event_ids, snb_hw_cache_event_ids, sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_snb();
+
+ x86_pmu.event_constraints = intel_hsw_event_constraints;
+ x86_pmu.pebs_constraints = intel_hsw_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_snb_extra_regs;
+ x86_pmu.pebs_aliases = intel_pebs_aliases_snb;
+ /* all extra regs are per-cpu when HT is on */
+ x86_pmu.er_flags |= ERF_HAS_RSP_1;
+ x86_pmu.er_flags |= ERF_NO_HT_SHARING;
+
+ x86_pmu.hw_config = hsw_hw_config;
+ x86_pmu.get_event_constraints = hsw_get_event_constraints;
+ x86_pmu.cpu_events = hsw_events_attrs;
+ pr_cont("Haswell events, ");
+ break;
+
default:
switch (x86_pmu.version) {
case 1:
@@ -2227,7 +2328,7 @@ __init int intel_pmu_init(void)
* counter, so do not extend mask to generic counters
*/
for_each_event_constraint(c, x86_pmu.event_constraints) {
- if (c->cmask != X86_RAW_EVENT_MASK
+ if (c->cmask != FIXED_EVENT_FLAGS
|| c->idxmsk64 == INTEL_PMC_MSK_FIXED_REF_CYCLES) {
continue;
}
@@ -2237,5 +2338,12 @@ __init int intel_pmu_init(void)
}
}

+ /* Support full width counters using alternative MSR range */
+ if (x86_pmu.intel_cap.full_width_write) {
+ x86_pmu.max_period = x86_pmu.cntval_mask;
+ x86_pmu.perfctr = MSR_IA32_PMC0;
+ pr_cont("full-width counters, ");
+ }
+
return 0;
}
diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 60250f6..3065c57 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -107,6 +107,19 @@ static u64 precise_store_data(u64 status)
return val;
}

+static u64 precise_store_data_hsw(u64 status)
+{
+ union perf_mem_data_src dse;
+
+ dse.val = 0;
+ dse.mem_op = PERF_MEM_OP_STORE;
+ dse.mem_lvl = PERF_MEM_LVL_NA;
+ if (status & 1)
+ dse.mem_lvl = PERF_MEM_LVL_L1;
+ /* Nothing else supported. Sorry. */
+ return dse.val;
+}
+
static u64 load_latency_data(u64 status)
{
union intel_x86_pebs_dse dse;
@@ -165,6 +178,22 @@ struct pebs_record_nhm {
u64 status, dla, dse, lat;
};

+/*
+ * Same as pebs_record_nhm, with two additional fields.
+ */
+struct pebs_record_hsw {
+ struct pebs_record_nhm nhm;
+ /*
+ * Real IP of the event. In the Intel documentation this
+ * is called eventingrip.
+ */
+ u64 real_ip;
+ /*
+ * TSX tuning information field: abort cycles and abort flags.
+ */
+ u64 tsx_tuning;
+};
+
void init_debug_store_on_cpu(int cpu)
{
struct debug_store *ds = per_cpu(cpu_hw_events, cpu).ds;
@@ -548,6 +577,42 @@ struct event_constraint intel_ivb_pebs_event_constraints[] = {
EVENT_CONSTRAINT_END
};

+struct event_constraint intel_hsw_pebs_event_constraints[] = {
+ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
+ INTEL_PST_HSW_CONSTRAINT(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
+ INTEL_UEVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */
+ INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x01c5, 0xf), /* BR_MISP_RETIRED.CONDITIONAL */
+ INTEL_UEVENT_CONSTRAINT(0x04c5, 0xf), /* BR_MISP_RETIRED.ALL_BRANCHES */
+ INTEL_UEVENT_CONSTRAINT(0x20c5, 0xf), /* BR_MISP_RETIRED.NEAR_TAKEN */
+ INTEL_PLD_CONSTRAINT(0x01cd, 0x8), /* MEM_TRANS_RETIRED.* */
+ /* MEM_UOPS_RETIRED.STLB_MISS_LOADS */
+ INTEL_UEVENT_CONSTRAINT(0x11d0, 0xf),
+ /* MEM_UOPS_RETIRED.STLB_MISS_STORES */
+ INTEL_UEVENT_CONSTRAINT(0x12d0, 0xf),
+ INTEL_UEVENT_CONSTRAINT(0x21d0, 0xf), /* MEM_UOPS_RETIRED.LOCK_LOADS */
+ INTEL_UEVENT_CONSTRAINT(0x41d0, 0xf), /* MEM_UOPS_RETIRED.SPLIT_LOADS */
+ /* MEM_UOPS_RETIRED.SPLIT_STORES */
+ INTEL_UEVENT_CONSTRAINT(0x42d0, 0xf),
+ INTEL_UEVENT_CONSTRAINT(0x81d0, 0xf), /* MEM_UOPS_RETIRED.ALL_LOADS */
+ INTEL_PST_HSW_CONSTRAINT(0x82d0, 0xf), /* MEM_UOPS_RETIRED.ALL_STORES */
+ INTEL_UEVENT_CONSTRAINT(0x01d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L1_HIT */
+ INTEL_UEVENT_CONSTRAINT(0x02d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L2_HIT */
+ INTEL_UEVENT_CONSTRAINT(0x04d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L3_HIT */
+ /* MEM_LOAD_UOPS_RETIRED.HIT_LFB */
+ INTEL_UEVENT_CONSTRAINT(0x40d1, 0xf),
+ /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_MISS */
+ INTEL_UEVENT_CONSTRAINT(0x01d2, 0xf),
+ /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_HIT */
+ INTEL_UEVENT_CONSTRAINT(0x02d2, 0xf),
+ /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.LOCAL_DRAM */
+ INTEL_UEVENT_CONSTRAINT(0x01d3, 0xf),
+ INTEL_UEVENT_CONSTRAINT(0x04c8, 0xf), /* HLE_RETIRED.Abort */
+ INTEL_UEVENT_CONSTRAINT(0x04c9, 0xf), /* RTM_RETIRED.Abort */
+
+ EVENT_CONSTRAINT_END
+};
+
struct event_constraint *intel_pebs_constraints(struct perf_event *event)
{
struct event_constraint *c;
@@ -588,6 +653,12 @@ void intel_pmu_pebs_disable(struct perf_event *event)
struct hw_perf_event *hwc = &event->hw;

cpuc->pebs_enabled &= ~(1ULL << hwc->idx);
+
+ if (event->hw.constraint->flags & PERF_X86_EVENT_PEBS_LDLAT)
+ cpuc->pebs_enabled &= ~(1ULL << (hwc->idx + 32));
+ else if (event->hw.constraint->flags & PERF_X86_EVENT_PEBS_ST)
+ cpuc->pebs_enabled &= ~(1ULL << 63);
+
if (cpuc->enabled)
wrmsrl(MSR_IA32_PEBS_ENABLE, cpuc->pebs_enabled);

@@ -697,6 +768,7 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
*/
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
struct pebs_record_nhm *pebs = __pebs;
+ struct pebs_record_hsw *pebs_hsw = __pebs;
struct perf_sample_data data;
struct pt_regs regs;
u64 sample_type;
@@ -706,7 +778,8 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
return;

fll = event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT;
- fst = event->hw.flags & PERF_X86_EVENT_PEBS_ST;
+ fst = event->hw.flags & (PERF_X86_EVENT_PEBS_ST |
+ PERF_X86_EVENT_PEBS_ST_HSW);

perf_sample_data_init(&data, 0, event->hw.last_period);

@@ -717,9 +790,6 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
* if PEBS-LL or PreciseStore
*/
if (fll || fst) {
- if (sample_type & PERF_SAMPLE_ADDR)
- data.addr = pebs->dla;
-
/*
* Use latency for weight (only avail with PEBS-LL)
*/
@@ -732,6 +802,9 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
if (sample_type & PERF_SAMPLE_DATA_SRC) {
if (fll)
data.data_src.val = load_latency_data(pebs->dse);
+ else if (event->hw.flags & PERF_X86_EVENT_PEBS_ST_HSW)
+ data.data_src.val =
+ precise_store_data_hsw(pebs->dse);
else
data.data_src.val = precise_store_data(pebs->dse);
}
@@ -753,11 +826,18 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
regs.bp = pebs->bp;
regs.sp = pebs->sp;

- if (event->attr.precise_ip > 1 && intel_pmu_pebs_fixup_ip(&regs))
+ if (event->attr.precise_ip > 1 && x86_pmu.intel_cap.pebs_format >= 2) {
+ regs.ip = pebs_hsw->real_ip;
+ regs.flags |= PERF_EFLAGS_EXACT;
+ } else if (event->attr.precise_ip > 1 && intel_pmu_pebs_fixup_ip(&regs))
regs.flags |= PERF_EFLAGS_EXACT;
else
regs.flags &= ~PERF_EFLAGS_EXACT;

+ if ((event->attr.sample_type & PERF_SAMPLE_ADDR) &&
+ x86_pmu.intel_cap.pebs_format >= 1)
+ data.addr = pebs->dla;
+
if (has_branch_stack(event))
data.br_stack = &cpuc->lbr_stack;

@@ -806,35 +886,22 @@ static void intel_pmu_drain_pebs_core(struct pt_regs *iregs)
__intel_pmu_pebs_event(event, iregs, at);
}

-static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
+static void __intel_pmu_drain_pebs_nhm(struct pt_regs *iregs, void *at,
+ void *top)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
struct debug_store *ds = cpuc->ds;
- struct pebs_record_nhm *at, *top;
struct perf_event *event = NULL;
u64 status = 0;
- int bit, n;
-
- if (!x86_pmu.pebs_active)
- return;
-
- at = (struct pebs_record_nhm *)(unsigned long)ds->pebs_buffer_base;
- top = (struct pebs_record_nhm *)(unsigned long)ds->pebs_index;
+ int bit;

ds->pebs_index = ds->pebs_buffer_base;

- n = top - at;
- if (n <= 0)
- return;
-
- /*
- * Should not happen, we program the threshold at 1 and do not
- * set a reset value.
- */
- WARN_ONCE(n > x86_pmu.max_pebs_events, "Unexpected number of pebs records %d\n", n);
+ for (; at < top; at += x86_pmu.pebs_record_size) {
+ struct pebs_record_nhm *p = at;

- for ( ; at < top; at++) {
- for_each_set_bit(bit, (unsigned long *)&at->status, x86_pmu.max_pebs_events) {
+ for_each_set_bit(bit, (unsigned long *)&p->status,
+ x86_pmu.max_pebs_events) {
event = cpuc->events[bit];
if (!test_bit(bit, cpuc->active_mask))
continue;
@@ -857,6 +924,61 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
}
}

+static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ struct debug_store *ds = cpuc->ds;
+ struct pebs_record_nhm *at, *top;
+ int n;
+
+ if (!x86_pmu.pebs_active)
+ return;
+
+ at = (struct pebs_record_nhm *)(unsigned long)ds->pebs_buffer_base;
+ top = (struct pebs_record_nhm *)(unsigned long)ds->pebs_index;
+
+ ds->pebs_index = ds->pebs_buffer_base;
+
+ n = top - at;
+ if (n <= 0)
+ return;
+
+ /*
+ * Should not happen, we program the threshold at 1 and do not
+ * set a reset value.
+ */
+ WARN_ONCE(n > x86_pmu.max_pebs_events,
+ "Unexpected number of pebs records %d\n", n);
+
+ return __intel_pmu_drain_pebs_nhm(iregs, at, top);
+}
+
+static void intel_pmu_drain_pebs_hsw(struct pt_regs *iregs)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ struct debug_store *ds = cpuc->ds;
+ struct pebs_record_hsw *at, *top;
+ int n;
+
+ if (!x86_pmu.pebs_active)
+ return;
+
+ at = (struct pebs_record_hsw *)(unsigned long)ds->pebs_buffer_base;
+ top = (struct pebs_record_hsw *)(unsigned long)ds->pebs_index;
+
+ n = top - at;
+ if (n <= 0)
+ return;
+ /*
+ * Should not happen, we program the threshold at 1 and do not
+ * set a reset value.
+ */
+ WARN_ONCE(n > x86_pmu.max_pebs_events,
+ "Unexpected number of pebs records %d\n", n);
+
+ return __intel_pmu_drain_pebs_nhm(iregs, at, top);
+}
+
/*
* BTS, PEBS probe and setup
*/
@@ -888,6 +1010,12 @@ void intel_ds_init(void)
x86_pmu.drain_pebs = intel_pmu_drain_pebs_nhm;
break;

+ case 2:
+ pr_cont("PEBS fmt2%c, ", pebs_type);
+ x86_pmu.pebs_record_size = sizeof(struct pebs_record_hsw);
+ x86_pmu.drain_pebs = intel_pmu_drain_pebs_hsw;
+ break;
+
default:
printk(KERN_CONT "no PEBS fmt%d%c, ", format, pebs_type);
x86_pmu.pebs = 0;
diff --git a/arch/x86/kernel/cpu/perf_event_intel_lbr.c b/arch/x86/kernel/cpu/perf_event_intel_lbr.c
index d978353..d5be06a 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_lbr.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_lbr.c
@@ -12,6 +12,16 @@ enum {
LBR_FORMAT_LIP = 0x01,
LBR_FORMAT_EIP = 0x02,
LBR_FORMAT_EIP_FLAGS = 0x03,
+ LBR_FORMAT_EIP_FLAGS2 = 0x04,
+ LBR_FORMAT_MAX_KNOWN = LBR_FORMAT_EIP_FLAGS2,
+};
+
+static enum {
+ LBR_EIP_FLAGS = 1,
+ LBR_TSX = 2,
+} lbr_desc[LBR_FORMAT_MAX_KNOWN + 1] = {
+ [LBR_FORMAT_EIP_FLAGS] = LBR_EIP_FLAGS,
+ [LBR_FORMAT_EIP_FLAGS2] = LBR_EIP_FLAGS | LBR_TSX,
};

/*
@@ -56,6 +66,8 @@ enum {
LBR_FAR)

#define LBR_FROM_FLAG_MISPRED (1ULL << 63)
+#define LBR_FROM_FLAG_IN_TX (1ULL << 62)
+#define LBR_FROM_FLAG_ABORT (1ULL << 61)

#define for_each_branch_sample_type(x) \
for ((x) = PERF_SAMPLE_BRANCH_USER; \
@@ -81,9 +93,13 @@ enum {
X86_BR_JMP = 1 << 9, /* jump */
X86_BR_IRQ = 1 << 10,/* hw interrupt or trap or fault */
X86_BR_IND_CALL = 1 << 11,/* indirect calls */
+ X86_BR_ABORT = 1 << 12,/* transaction abort */
+ X86_BR_IN_TX = 1 << 13,/* in transaction */
+ X86_BR_NO_TX = 1 << 14,/* not in transaction */
};

#define X86_BR_PLM (X86_BR_USER | X86_BR_KERNEL)
+#define X86_BR_ANYTX (X86_BR_NO_TX | X86_BR_IN_TX)

#define X86_BR_ANY \
(X86_BR_CALL |\
@@ -95,6 +111,7 @@ enum {
X86_BR_JCC |\
X86_BR_JMP |\
X86_BR_IRQ |\
+ X86_BR_ABORT |\
X86_BR_IND_CALL)

#define X86_BR_ALL (X86_BR_PLM | X86_BR_ANY)
@@ -270,21 +287,31 @@ static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc)

for (i = 0; i < x86_pmu.lbr_nr; i++) {
unsigned long lbr_idx = (tos - i) & mask;
- u64 from, to, mis = 0, pred = 0;
+ u64 from, to, mis = 0, pred = 0, in_tx = 0, abort = 0;
+ int skip = 0;
+ int lbr_flags = lbr_desc[lbr_format];

rdmsrl(x86_pmu.lbr_from + lbr_idx, from);
rdmsrl(x86_pmu.lbr_to + lbr_idx, to);

- if (lbr_format == LBR_FORMAT_EIP_FLAGS) {
+ if (lbr_flags & LBR_EIP_FLAGS) {
mis = !!(from & LBR_FROM_FLAG_MISPRED);
pred = !mis;
- from = (u64)((((s64)from) << 1) >> 1);
+ skip = 1;
+ }
+ if (lbr_flags & LBR_TSX) {
+ in_tx = !!(from & LBR_FROM_FLAG_IN_TX);
+ abort = !!(from & LBR_FROM_FLAG_ABORT);
+ skip = 3;
}
+ from = (u64)((((s64)from) << skip) >> skip);

cpuc->lbr_entries[i].from = from;
cpuc->lbr_entries[i].to = to;
cpuc->lbr_entries[i].mispred = mis;
cpuc->lbr_entries[i].predicted = pred;
+ cpuc->lbr_entries[i].in_tx = in_tx;
+ cpuc->lbr_entries[i].abort = abort;
cpuc->lbr_entries[i].reserved = 0;
}
cpuc->lbr_stack.nr = i;
@@ -310,7 +337,7 @@ void intel_pmu_lbr_read(void)
* - in case there is no HW filter
* - in case the HW filter has errata or limitations
*/
-static int intel_pmu_setup_sw_lbr_filter(struct perf_event *event)
+static void intel_pmu_setup_sw_lbr_filter(struct perf_event *event)
{
u64 br_type = event->attr.branch_sample_type;
int mask = 0;
@@ -318,11 +345,8 @@ static int intel_pmu_setup_sw_lbr_filter(struct perf_event *event)
if (br_type & PERF_SAMPLE_BRANCH_USER)
mask |= X86_BR_USER;

- if (br_type & PERF_SAMPLE_BRANCH_KERNEL) {
- if (perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN))
- return -EACCES;
+ if (br_type & PERF_SAMPLE_BRANCH_KERNEL)
mask |= X86_BR_KERNEL;
- }

/* we ignore BRANCH_HV here */

@@ -337,13 +361,21 @@ static int intel_pmu_setup_sw_lbr_filter(struct perf_event *event)

if (br_type & PERF_SAMPLE_BRANCH_IND_CALL)
mask |= X86_BR_IND_CALL;
+
+ if (br_type & PERF_SAMPLE_BRANCH_ABORT_TX)
+ mask |= X86_BR_ABORT;
+
+ if (br_type & PERF_SAMPLE_BRANCH_IN_TX)
+ mask |= X86_BR_IN_TX;
+
+ if (br_type & PERF_SAMPLE_BRANCH_NO_TX)
+ mask |= X86_BR_NO_TX;
+
/*
* stash actual user request into reg, it may
* be used by fixup code for some CPU
*/
event->hw.branch_reg.reg = mask;
-
- return 0;
}

/*
@@ -391,9 +423,7 @@ int intel_pmu_setup_lbr_filter(struct perf_event *event)
/*
* setup SW LBR filter
*/
- ret = intel_pmu_setup_sw_lbr_filter(event);
- if (ret)
- return ret;
+ intel_pmu_setup_sw_lbr_filter(event);

/*
* setup HW LBR filter, if any
@@ -415,7 +445,7 @@ int intel_pmu_setup_lbr_filter(struct perf_event *event)
* decoded (e.g., text page not present), then X86_BR_NONE is
* returned.
*/
-static int branch_type(unsigned long from, unsigned long to)
+static int branch_type(unsigned long from, unsigned long to, int abort)
{
struct insn insn;
void *addr;
@@ -435,6 +465,9 @@ static int branch_type(unsigned long from, unsigned long to)
if (from == 0 || to == 0)
return X86_BR_NONE;

+ if (abort)
+ return X86_BR_ABORT | to_plm;
+
if (from_plm == X86_BR_USER) {
/*
* can happen if measuring at the user level only
@@ -581,7 +614,13 @@ intel_pmu_lbr_filter(struct cpu_hw_events *cpuc)
from = cpuc->lbr_entries[i].from;
to = cpuc->lbr_entries[i].to;

- type = branch_type(from, to);
+ type = branch_type(from, to, cpuc->lbr_entries[i].abort);
+ if (type != X86_BR_NONE && (br_sel & X86_BR_ANYTX)) {
+ if (cpuc->lbr_entries[i].in_tx)
+ type |= X86_BR_IN_TX;
+ else
+ type |= X86_BR_NO_TX;
+ }

/* if type does not correspond, then discard */
if (type == X86_BR_NONE || (br_sel & type) != type) {
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 52441a2..9dd9975 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -536,7 +536,7 @@ __snbep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *eve
if (!uncore_box_is_fake(box))
reg1->alloc |= alloc;

- return 0;
+ return NULL;
fail:
for (; i >= 0; i--) {
if (alloc & (0x1 << i))
@@ -644,7 +644,7 @@ snbep_pcu_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
(!uncore_box_is_fake(box) && reg1->alloc))
return NULL;
again:
- mask = 0xff << (idx * 8);
+ mask = 0xffULL << (idx * 8);
raw_spin_lock_irqsave(&er->lock, flags);
if (!__BITS_VALUE(atomic_read(&er->ref), idx, 8) ||
!((config1 ^ er->config) & mask)) {
@@ -1923,7 +1923,7 @@ static u64 nhmex_mbox_alter_er(struct perf_event *event, int new_idx, bool modif
{
struct hw_perf_event *hwc = &event->hw;
struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
- int idx, orig_idx = __BITS_VALUE(reg1->idx, 0, 8);
+ u64 idx, orig_idx = __BITS_VALUE(reg1->idx, 0, 8);
u64 config = reg1->config;

/* get the non-shared control bits and shift them */
@@ -2723,15 +2723,16 @@ static void uncore_put_event_constraint(struct intel_uncore_box *box, struct per
static int uncore_assign_events(struct intel_uncore_box *box, int assign[], int n)
{
unsigned long used_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)];
- struct event_constraint *c, *constraints[UNCORE_PMC_IDX_MAX];
+ struct event_constraint *c;
int i, wmin, wmax, ret = 0;
struct hw_perf_event *hwc;

bitmap_zero(used_mask, UNCORE_PMC_IDX_MAX);

for (i = 0, wmin = UNCORE_PMC_IDX_MAX, wmax = 0; i < n; i++) {
+ hwc = &box->event_list[i]->hw;
c = uncore_get_event_constraint(box, box->event_list[i]);
- constraints[i] = c;
+ hwc->constraint = c;
wmin = min(wmin, c->weight);
wmax = max(wmax, c->weight);
}
@@ -2739,7 +2740,7 @@ static int uncore_assign_events(struct intel_uncore_box *box, int assign[], int
/* fastpath, try to reuse previous register */
for (i = 0; i < n; i++) {
hwc = &box->event_list[i]->hw;
- c = constraints[i];
+ c = hwc->constraint;

/* never assigned */
if (hwc->idx == -1)
@@ -2759,7 +2760,8 @@ static int uncore_assign_events(struct intel_uncore_box *box, int assign[], int
}
/* slow path */
if (i != n)
- ret = perf_assign_events(constraints, n, wmin, wmax, assign);
+ ret = perf_assign_events(box->event_list, n,
+ wmin, wmax, assign);

if (!assign || ret) {
for (i = 0; i < n; i++)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index f952891..47b3d00 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -337,10 +337,10 @@
NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK)

#define NHMEX_M_PMON_ZDP_CTL_FVC_MASK (((1 << 11) - 1) | (1 << 23))
-#define NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7 << (11 + 3 * (n)))
+#define NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7ULL << (11 + 3 * (n)))

#define WSMEX_M_PMON_ZDP_CTL_FVC_MASK (((1 << 12) - 1) | (1 << 24))
-#define WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7 << (12 + 3 * (n)))
+#define WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7ULL << (12 + 3 * (n)))

/*
* use the 9~13 bits to select event If the 7th bit is not set,
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index 6030805..0920212 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -14,6 +14,7 @@
#include <linux/kprobes.h>
#include <linux/kdebug.h>
#include <linux/nmi.h>
+#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/hardirq.h>
#include <linux/slab.h>
@@ -29,6 +30,9 @@
#include <asm/nmi.h>
#include <asm/x86_init.h>

+#define CREATE_TRACE_POINTS
+#include <trace/events/nmi.h>
+
struct nmi_desc {
spinlock_t lock;
struct list_head head;
@@ -82,6 +86,15 @@ __setup("unknown_nmi_panic", setup_unknown_nmi_panic);

#define nmi_to_desc(type) (&nmi_desc[type])

+static u64 nmi_longest_ns = 1 * NSEC_PER_MSEC;
+static int __init nmi_warning_debugfs(void)
+{
+ debugfs_create_u64("nmi_longest_ns", 0644,
+ arch_debugfs_dir, &nmi_longest_ns);
+ return 0;
+}
+fs_initcall(nmi_warning_debugfs);
+
static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
{
struct nmi_desc *desc = nmi_to_desc(type);
@@ -96,8 +109,27 @@ static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2
* can be latched at any given time. Walk the whole list
* to handle those situations.
*/
- list_for_each_entry_rcu(a, &desc->head, list)
- handled += a->handler(type, regs);
+ list_for_each_entry_rcu(a, &desc->head, list) {
+ u64 before, delta, whole_msecs;
+ int decimal_msecs, thishandled;
+
+ before = local_clock();
+ thishandled = a->handler(type, regs);
+ handled += thishandled;
+ delta = local_clock() - before;
+ trace_nmi_handler(a->handler, (int)delta, thishandled);
+
+ if (delta < nmi_longest_ns)
+ continue;
+
+ nmi_longest_ns = delta;
+ whole_msecs = do_div(delta, (1000 * 1000));
+ decimal_msecs = do_div(delta, 1000) % 1000;
+ printk_ratelimited(KERN_INFO
+ "INFO: NMI handler (%ps) took too long to run: "
+ "%lld.%03d msecs\n", a->handler, whole_msecs,
+ decimal_msecs);
+ }

rcu_read_unlock();

diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 6956299..cf91358 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -43,12 +43,6 @@

#include <asm/sigframe.h>

-#ifdef CONFIG_X86_32
-# define FIX_EFLAGS (__FIX_EFLAGS | X86_EFLAGS_RF)
-#else
-# define FIX_EFLAGS __FIX_EFLAGS
-#endif
-
#define COPY(x) do { \
get_user_ex(regs->x, &sc->x); \
} while (0)
@@ -668,15 +662,17 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
if (!failed) {
/*
* Clear the direction flag as per the ABI for function entry.
- */
- regs->flags &= ~X86_EFLAGS_DF;
- /*
+ *
+ * Clear RF when entering the signal handler, because
+ * it might disable possible debug exception from the
+ * signal handler.
+ *
* Clear TF when entering the signal handler, but
* notify any tracer that was single-stepping it.
* The tracer may want to single-step inside the
* handler too.
*/
- regs->flags &= ~X86_EFLAGS_TF;
+ regs->flags &= ~(X86_EFLAGS_DF|X86_EFLAGS_RF|X86_EFLAGS_TF);
}
signal_setup_done(failed, ksig, test_thread_flag(TIF_SINGLESTEP));
}
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index bf51abb..7acbf35 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -99,7 +99,7 @@ struct ivhd_header {
u64 mmio_phys;
u16 pci_seg;
u16 info;
- u32 reserved;
+ u32 efr;
} __attribute__((packed));

/*
@@ -154,6 +154,7 @@ bool amd_iommu_iotlb_sup __read_mostly = true;
u32 amd_iommu_max_pasids __read_mostly = ~0;

bool amd_iommu_v2_present __read_mostly;
+bool amd_iommu_pc_present __read_mostly;

bool amd_iommu_force_isolation __read_mostly;

@@ -369,23 +370,23 @@ static void iommu_disable(struct amd_iommu *iommu)
* mapping and unmapping functions for the IOMMU MMIO space. Each AMD IOMMU in
* the system has one.
*/
-static u8 __iomem * __init iommu_map_mmio_space(u64 address)
+static u8 __iomem * __init iommu_map_mmio_space(u64 address, u64 end)
{
- if (!request_mem_region(address, MMIO_REGION_LENGTH, "amd_iommu")) {
- pr_err("AMD-Vi: Can not reserve memory region %llx for mmio\n",
- address);
+ if (!request_mem_region(address, end, "amd_iommu")) {
+ pr_err("AMD-Vi: Can not reserve memory region %llx-%llx for mmio\n",
+ address, end);
pr_err("AMD-Vi: This is a BIOS bug. Please contact your hardware vendor\n");
return NULL;
}

- return (u8 __iomem *)ioremap_nocache(address, MMIO_REGION_LENGTH);
+ return (u8 __iomem *)ioremap_nocache(address, end);
}

static void __init iommu_unmap_mmio_space(struct amd_iommu *iommu)
{
if (iommu->mmio_base)
iounmap(iommu->mmio_base);
- release_mem_region(iommu->mmio_phys, MMIO_REGION_LENGTH);
+ release_mem_region(iommu->mmio_phys, iommu->mmio_phys_end);
}

/****************************************************************************
@@ -1085,7 +1086,18 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
iommu->cap_ptr = h->cap_ptr;
iommu->pci_seg = h->pci_seg;
iommu->mmio_phys = h->mmio_phys;
- iommu->mmio_base = iommu_map_mmio_space(h->mmio_phys);
+
+ /* Check if IVHD EFR contains proper max banks/counters */
+ if ((h->efr != 0) &&
+ ((h->efr & (0xF << 13)) != 0) &&
+ ((h->efr & (0x3F << 17)) != 0)) {
+ iommu->mmio_phys_end = MMIO_REG_END_OFFSET;
+ } else {
+ iommu->mmio_phys_end = MMIO_CNTR_CONF_OFFSET;
+ }
+
+ iommu->mmio_base = iommu_map_mmio_space(iommu->mmio_phys,
+ iommu->mmio_phys_end);
if (!iommu->mmio_base)
return -ENOMEM;

@@ -1160,6 +1172,33 @@ static int __init init_iommu_all(struct acpi_table_header *table)
return 0;
}

+
+static void init_iommu_perf_ctr(struct amd_iommu *iommu)
+{
+ u64 val = 0xabcd, val2 = 0;
+
+ if (!iommu_feature(iommu, FEATURE_PC))
+ return;
+
+ amd_iommu_pc_present = true;
+
+ /* Check if the performance counters can be written to */
+ if ((0 != amd_iommu_pc_get_set_reg_val(0, 0, 0, 0, &val, true)) ||
+ (0 != amd_iommu_pc_get_set_reg_val(0, 0, 0, 0, &val2, false)) ||
+ (val != val2)) {
+ pr_err("AMD-Vi: Unable to write to IOMMU perf counter.\n");
+ amd_iommu_pc_present = false;
+ return;
+ }
+
+ pr_info("AMD-Vi: IOMMU performance counters supported\n");
+
+ val = readl(iommu->mmio_base + MMIO_CNTR_CONF_OFFSET);
+ iommu->max_banks = (u8) ((val >> 12) & 0x3f);
+ iommu->max_counters = (u8) ((val >> 7) & 0xf);
+}
+
+
static int iommu_init_pci(struct amd_iommu *iommu)
{
int cap_ptr = iommu->cap_ptr;
@@ -1226,6 +1265,8 @@ static int iommu_init_pci(struct amd_iommu *iommu)
if (iommu->cap & (1UL << IOMMU_CAP_NPCACHE))
amd_iommu_np_cache = true;

+ init_iommu_perf_ctr(iommu);
+
if (is_rd890_iommu(iommu->dev)) {
int i, j;

@@ -1278,7 +1319,7 @@ static void print_iommu_info(void)
if (iommu_feature(iommu, (1ULL << i)))
pr_cont(" %s", feat_str[i]);
}
- pr_cont("\n");
+ pr_cont("\n");
}
}
if (irq_remapping_enabled)
@@ -2232,3 +2273,84 @@ bool amd_iommu_v2_supported(void)
return amd_iommu_v2_present;
}
EXPORT_SYMBOL(amd_iommu_v2_supported);
+
+/****************************************************************************
+ *
+ * IOMMU EFR Performance Counter support functionality. This code allows
+ * access to the IOMMU PC functionality.
+ *
+ ****************************************************************************/
+
+u8 amd_iommu_pc_get_max_banks(u16 devid)
+{
+ struct amd_iommu *iommu;
+ u8 ret = 0;
+
+ /* locate the iommu governing the devid */
+ iommu = amd_iommu_rlookup_table[devid];
+ if (iommu)
+ ret = iommu->max_banks;
+
+ return ret;
+}
+EXPORT_SYMBOL(amd_iommu_pc_get_max_banks);
+
+bool amd_iommu_pc_supported(void)
+{
+ return amd_iommu_pc_present;
+}
+EXPORT_SYMBOL(amd_iommu_pc_supported);
+
+u8 amd_iommu_pc_get_max_counters(u16 devid)
+{
+ struct amd_iommu *iommu;
+ u8 ret = 0;
+
+ /* locate the iommu governing the devid */
+ iommu = amd_iommu_rlookup_table[devid];
+ if (iommu)
+ ret = iommu->max_counters;
+
+ return ret;
+}
+EXPORT_SYMBOL(amd_iommu_pc_get_max_counters);
+
+int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn,
+ u64 *value, bool is_write)
+{
+ struct amd_iommu *iommu;
+ u32 offset;
+ u32 max_offset_lim;
+
+ /* Make sure the IOMMU PC resource is available */
+ if (!amd_iommu_pc_present)
+ return -ENODEV;
+
+ /* Locate the iommu associated with the device ID */
+ iommu = amd_iommu_rlookup_table[devid];
+
+ /* Check for valid iommu and pc register indexing */
+ if (WARN_ON((iommu == NULL) || (fxn > 0x28) || (fxn & 7)))
+ return -ENODEV;
+
+ offset = (u32)(((0x40|bank) << 12) | (cntr << 8) | fxn);
+
+ /* Limit the offset to the hw defined mmio region aperture */
+ max_offset_lim = (u32)(((0x40|iommu->max_banks) << 12) |
+ (iommu->max_counters << 8) | 0x28);
+ if ((offset < MMIO_CNTR_REG_OFFSET) ||
+ (offset > max_offset_lim))
+ return -EINVAL;
+
+ if (is_write) {
+ writel((u32)*value, iommu->mmio_base + offset);
+ writel((*value >> 32), iommu->mmio_base + offset + 4);
+ } else {
+ *value = readl(iommu->mmio_base + offset + 4);
+ *value <<= 32;
+ *value = readl(iommu->mmio_base + offset);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(amd_iommu_pc_get_set_reg_val);
diff --git a/drivers/iommu/amd_iommu_proto.h b/drivers/iommu/amd_iommu_proto.h
index c294961..95ed6de 100644
--- a/drivers/iommu/amd_iommu_proto.h
+++ b/drivers/iommu/amd_iommu_proto.h
@@ -56,6 +56,13 @@ extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, int pasid,
extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, int pasid);
extern struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev);

+/* IOMMU Performance Counter functions */
+extern bool amd_iommu_pc_supported(void);
+extern u8 amd_iommu_pc_get_max_banks(u16 devid);
+extern u8 amd_iommu_pc_get_max_counters(u16 devid);
+extern int amd_iommu_pc_get_set_reg_val(u16 devid, u8 bank, u8 cntr, u8 fxn,
+ u64 *value, bool is_write);
+
#define PPR_SUCCESS 0x0
#define PPR_INVALID 0x1
#define PPR_FAILURE 0xf
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 0285a21..e400fbe 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -38,9 +38,6 @@
#define ALIAS_TABLE_ENTRY_SIZE 2
#define RLOOKUP_TABLE_ENTRY_SIZE (sizeof(void *))

-/* Length of the MMIO region for the AMD IOMMU */
-#define MMIO_REGION_LENGTH 0x4000
-
/* Capability offsets used by the driver */
#define MMIO_CAP_HDR_OFFSET 0x00
#define MMIO_RANGE_OFFSET 0x0c
@@ -78,6 +75,10 @@
#define MMIO_STATUS_OFFSET 0x2020
#define MMIO_PPR_HEAD_OFFSET 0x2030
#define MMIO_PPR_TAIL_OFFSET 0x2038
+#define MMIO_CNTR_CONF_OFFSET 0x4000
+#define MMIO_CNTR_REG_OFFSET 0x40000
+#define MMIO_REG_END_OFFSET 0x80000
+


/* Extended Feature Bits */
@@ -507,6 +508,10 @@ struct amd_iommu {

/* physical address of MMIO space */
u64 mmio_phys;
+
+ /* physical end address of MMIO space */
+ u64 mmio_phys_end;
+
/* virtual address of MMIO space */
u8 __iomem *mmio_base;

@@ -584,6 +589,10 @@ struct amd_iommu {

/* The l2 indirect registers */
u32 stored_l2[0x83];
+
+ /* The maximum PC banks and counters/bank (PCSup=1) */
+ u8 max_banks;
+ u8 max_counters;
};

struct devid_map {
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c5b6dbf..50b3efd 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -73,13 +73,18 @@ struct perf_raw_record {
*
* support for mispred, predicted is optional. In case it
* is not supported mispred = predicted = 0.
+ *
+ * in_tx: running in a hardware transaction
+ * abort: aborting a hardware transaction
*/
struct perf_branch_entry {
__u64 from;
__u64 to;
__u64 mispred:1, /* target mispredicted */
predicted:1,/* target predicted */
- reserved:62;
+ in_tx:1, /* in transaction */
+ abort:1, /* transaction abort */
+ reserved:60;
};

/*
@@ -113,6 +118,8 @@ struct hw_perf_event_extra {
int idx; /* index in shared_regs->regs[] */
};

+struct event_constraint;
+
/**
* struct hw_perf_event - performance event hardware details:
*/
@@ -131,6 +138,8 @@ struct hw_perf_event {

struct hw_perf_event_extra extra_reg;
struct hw_perf_event_extra branch_reg;
+
+ struct event_constraint *constraint;
};
struct { /* software */
struct hrtimer hrtimer;
@@ -188,12 +197,13 @@ struct pmu {

struct device *dev;
const struct attribute_group **attr_groups;
- char *name;
+ const char *name;
int type;

int * __percpu pmu_disable_count;
struct perf_cpu_context * __percpu pmu_cpu_context;
int task_ctx_nr;
+ int hrtimer_interval_ms;

/*
* Fully disable/enable this PMU, can be used to protect from the PMI
@@ -500,8 +510,9 @@ struct perf_cpu_context {
struct perf_event_context *task_ctx;
int active_oncpu;
int exclusive;
+ struct hrtimer hrtimer;
+ ktime_t hrtimer_interval;
struct list_head rotation_list;
- int jiffies_interval;
struct pmu *unique_pmu;
struct perf_cgroup *cgrp;
};
@@ -517,7 +528,7 @@ struct perf_output_handle {

#ifdef CONFIG_PERF_EVENTS

-extern int perf_pmu_register(struct pmu *pmu, char *name, int type);
+extern int perf_pmu_register(struct pmu *pmu, const char *name, int type);
extern void perf_pmu_unregister(struct pmu *pmu);

extern int perf_num_counters(void);
@@ -695,10 +706,17 @@ static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64
extern int sysctl_perf_event_paranoid;
extern int sysctl_perf_event_mlock;
extern int sysctl_perf_event_sample_rate;
+extern int sysctl_perf_cpu_time_max_percent;
+
+extern void perf_sample_event_took(u64 sample_len_ns);

extern int perf_proc_update_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
loff_t *ppos);
+extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos);
+

static inline bool perf_paranoid_tracepoint_raw(void)
{
@@ -742,6 +760,7 @@ extern unsigned int perf_output_skip(struct perf_output_handle *handle,
unsigned int len);
extern int perf_swevent_get_recursion_context(void);
extern void perf_swevent_put_recursion_context(int rctx);
+extern u64 perf_swevent_set_period(struct perf_event *event);
extern void perf_event_enable(struct perf_event *event);
extern void perf_event_disable(struct perf_event *event);
extern int __perf_event_disable(void *info);
@@ -781,6 +800,7 @@ static inline void perf_event_fork(struct task_struct *tsk) { }
static inline void perf_event_init(void) { }
static inline int perf_swevent_get_recursion_context(void) { return -1; }
static inline void perf_swevent_put_recursion_context(int rctx) { }
+static inline u64 perf_swevent_set_period(struct perf_event *event) { return 0; }
static inline void perf_event_enable(struct perf_event *event) { }
static inline void perf_event_disable(struct perf_event *event) { }
static inline int __perf_event_disable(void *info) { return -1; }
diff --git a/include/trace/events/nmi.h b/include/trace/events/nmi.h
new file mode 100644
index 0000000..da3ee96
--- /dev/null
+++ b/include/trace/events/nmi.h
@@ -0,0 +1,37 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM nmi
+
+#if !defined(_TRACE_NMI_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_NMI_H
+
+#include <linux/ktime.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(nmi_handler,
+
+ TP_PROTO(void *handler, s64 delta_ns, int handled),
+
+ TP_ARGS(handler, delta_ns, handled),
+
+ TP_STRUCT__entry(
+ __field( void *, handler )
+ __field( s64, delta_ns)
+ __field( int, handled )
+ ),
+
+ TP_fast_assign(
+ __entry->handler = handler;
+ __entry->delta_ns = delta_ns;
+ __entry->handled = handled;
+ ),
+
+ TP_printk("%ps() delta_ns: %lld handled: %d",
+ __entry->handler,
+ __entry->delta_ns,
+ __entry->handled)
+);
+
+#endif /* _TRACE_NMI_H */
+
+/* This part ust be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index fb104e5..0b1df41 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -157,8 +157,11 @@ enum perf_branch_sample_type {
PERF_SAMPLE_BRANCH_ANY_CALL = 1U << 4, /* any call branch */
PERF_SAMPLE_BRANCH_ANY_RETURN = 1U << 5, /* any return branch */
PERF_SAMPLE_BRANCH_IND_CALL = 1U << 6, /* indirect calls */
+ PERF_SAMPLE_BRANCH_ABORT_TX = 1U << 7, /* transaction aborts */
+ PERF_SAMPLE_BRANCH_IN_TX = 1U << 8, /* in transaction */
+ PERF_SAMPLE_BRANCH_NO_TX = 1U << 9, /* not in transaction */

- PERF_SAMPLE_BRANCH_MAX = 1U << 7, /* non-ABI */
+ PERF_SAMPLE_BRANCH_MAX = 1U << 10, /* non-ABI */
};

#define PERF_SAMPLE_BRANCH_PLM_ALL \
diff --git a/init/main.c b/init/main.c
index 9484f4b..ec54958 100644
--- a/init/main.c
+++ b/init/main.c
@@ -542,7 +542,6 @@ asmlinkage void __init start_kernel(void)
if (WARN(!irqs_disabled(), "Interrupts were enabled *very* early, fixing it\n"))
local_irq_disable();
idr_init_cache();
- perf_event_init();
rcu_init();
tick_nohz_init();
radix_tree_init();
@@ -555,6 +554,7 @@ asmlinkage void __init start_kernel(void)
softirq_init();
timekeeping_init();
time_init();
+ perf_event_init();
profile_init();
call_function_init();
WARN(!irqs_disabled(), "Interrupts were enabled early\n");
diff --git a/kernel/events/core.c b/kernel/events/core.c
index b391907..1db3af9 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -165,10 +165,28 @@ int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free'
/*
* max perf event sample rate
*/
-#define DEFAULT_MAX_SAMPLE_RATE 100000
-int sysctl_perf_event_sample_rate __read_mostly = DEFAULT_MAX_SAMPLE_RATE;
-static int max_samples_per_tick __read_mostly =
- DIV_ROUND_UP(DEFAULT_MAX_SAMPLE_RATE, HZ);
+#define DEFAULT_MAX_SAMPLE_RATE 100000
+#define DEFAULT_SAMPLE_PERIOD_NS (NSEC_PER_SEC / DEFAULT_MAX_SAMPLE_RATE)
+#define DEFAULT_CPU_TIME_MAX_PERCENT 25
+
+int sysctl_perf_event_sample_rate __read_mostly = DEFAULT_MAX_SAMPLE_RATE;
+
+static int max_samples_per_tick __read_mostly = DIV_ROUND_UP(DEFAULT_MAX_SAMPLE_RATE, HZ);
+static int perf_sample_period_ns __read_mostly = DEFAULT_SAMPLE_PERIOD_NS;
+
+static atomic_t perf_sample_allowed_ns __read_mostly =
+ ATOMIC_INIT( DEFAULT_SAMPLE_PERIOD_NS * DEFAULT_CPU_TIME_MAX_PERCENT / 100);
+
+void update_perf_cpu_limits(void)
+{
+ u64 tmp = perf_sample_period_ns;
+
+ tmp *= sysctl_perf_cpu_time_max_percent;
+ tmp = do_div(tmp, 100);
+ atomic_set(&perf_sample_allowed_ns, tmp);
+}
+
+static int perf_rotate_context(struct perf_cpu_context *cpuctx);

int perf_proc_update_handler(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp,
@@ -180,10 +198,78 @@ int perf_proc_update_handler(struct ctl_table *table, int write,
return ret;

max_samples_per_tick = DIV_ROUND_UP(sysctl_perf_event_sample_rate, HZ);
+ perf_sample_period_ns = NSEC_PER_SEC / sysctl_perf_event_sample_rate;
+ update_perf_cpu_limits();

return 0;
}

+int sysctl_perf_cpu_time_max_percent __read_mostly = DEFAULT_CPU_TIME_MAX_PERCENT;
+
+int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos)
+{
+ int ret = proc_dointvec(table, write, buffer, lenp, ppos);
+
+ if (ret || !write)
+ return ret;
+
+ update_perf_cpu_limits();
+
+ return 0;
+}
+
+/*
+ * perf samples are done in some very critical code paths (NMIs).
+ * If they take too much CPU time, the system can lock up and not
+ * get any real work done. This will drop the sample rate when
+ * we detect that events are taking too long.
+ */
+#define NR_ACCUMULATED_SAMPLES 128
+DEFINE_PER_CPU(u64, running_sample_length);
+
+void perf_sample_event_took(u64 sample_len_ns)
+{
+ u64 avg_local_sample_len;
+ u64 local_samples_len = __get_cpu_var(running_sample_length);
+
+ if (atomic_read(&perf_sample_allowed_ns) == 0)
+ return;
+
+ /* decay the counter by 1 average sample */
+ local_samples_len = __get_cpu_var(running_sample_length);
+ local_samples_len -= local_samples_len/NR_ACCUMULATED_SAMPLES;
+ local_samples_len += sample_len_ns;
+ __get_cpu_var(running_sample_length) = local_samples_len;
+
+ /*
+ * note: this will be biased artifically low until we have
+ * seen NR_ACCUMULATED_SAMPLES. Doing it this way keeps us
+ * from having to maintain a count.
+ */
+ avg_local_sample_len = local_samples_len/NR_ACCUMULATED_SAMPLES;
+
+ if (avg_local_sample_len <= atomic_read(&perf_sample_allowed_ns))
+ return;
+
+ if (max_samples_per_tick <= 1)
+ return;
+
+ max_samples_per_tick = DIV_ROUND_UP(max_samples_per_tick, 2);
+ sysctl_perf_event_sample_rate = max_samples_per_tick * HZ;
+ perf_sample_period_ns = NSEC_PER_SEC / sysctl_perf_event_sample_rate;
+
+ printk_ratelimited(KERN_WARNING
+ "perf samples too long (%lld > %d), lowering "
+ "kernel.perf_event_max_sample_rate to %d\n",
+ avg_local_sample_len,
+ atomic_read(&perf_sample_allowed_ns),
+ sysctl_perf_event_sample_rate);
+
+ update_perf_cpu_limits();
+}
+
static atomic64_t perf_event_id;

static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
@@ -655,6 +741,106 @@ perf_cgroup_mark_enabled(struct perf_event *event,
}
#endif

+/*
+ * set default to be dependent on timer tick just
+ * like original code
+ */
+#define PERF_CPU_HRTIMER (1000 / HZ)
+/*
+ * function must be called with interrupts disbled
+ */
+static enum hrtimer_restart perf_cpu_hrtimer_handler(struct hrtimer *hr)
+{
+ struct perf_cpu_context *cpuctx;
+ enum hrtimer_restart ret = HRTIMER_NORESTART;
+ int rotations = 0;
+
+ WARN_ON(!irqs_disabled());
+
+ cpuctx = container_of(hr, struct perf_cpu_context, hrtimer);
+
+ rotations = perf_rotate_context(cpuctx);
+
+ /*
+ * arm timer if needed
+ */
+ if (rotations) {
+ hrtimer_forward_now(hr, cpuctx->hrtimer_interval);
+ ret = HRTIMER_RESTART;
+ }
+
+ return ret;
+}
+
+/* CPU is going down */
+void perf_cpu_hrtimer_cancel(int cpu)
+{
+ struct perf_cpu_context *cpuctx;
+ struct pmu *pmu;
+ unsigned long flags;
+
+ if (WARN_ON(cpu != smp_processor_id()))
+ return;
+
+ local_irq_save(flags);
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(pmu, &pmus, entry) {
+ cpuctx = this_cpu_ptr(pmu->pmu_cpu_context);
+
+ if (pmu->task_ctx_nr == perf_sw_context)
+ continue;
+
+ hrtimer_cancel(&cpuctx->hrtimer);
+ }
+
+ rcu_read_unlock();
+
+ local_irq_restore(flags);
+}
+
+static void __perf_cpu_hrtimer_init(struct perf_cpu_context *cpuctx, int cpu)
+{
+ struct hrtimer *hr = &cpuctx->hrtimer;
+ struct pmu *pmu = cpuctx->ctx.pmu;
+ int timer;
+
+ /* no multiplexing needed for SW PMU */
+ if (pmu->task_ctx_nr == perf_sw_context)
+ return;
+
+ /*
+ * check default is sane, if not set then force to
+ * default interval (1/tick)
+ */
+ timer = pmu->hrtimer_interval_ms;
+ if (timer < 1)
+ timer = pmu->hrtimer_interval_ms = PERF_CPU_HRTIMER;
+
+ cpuctx->hrtimer_interval = ns_to_ktime(NSEC_PER_MSEC * timer);
+
+ hrtimer_init(hr, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
+ hr->function = perf_cpu_hrtimer_handler;
+}
+
+static void perf_cpu_hrtimer_restart(struct perf_cpu_context *cpuctx)
+{
+ struct hrtimer *hr = &cpuctx->hrtimer;
+ struct pmu *pmu = cpuctx->ctx.pmu;
+
+ /* not for SW PMU */
+ if (pmu->task_ctx_nr == perf_sw_context)
+ return;
+
+ if (hrtimer_active(hr))
+ return;
+
+ if (!hrtimer_callback_running(hr))
+ __hrtimer_start_range_ns(hr, cpuctx->hrtimer_interval,
+ 0, HRTIMER_MODE_REL_PINNED, 0);
+}
+
void perf_pmu_disable(struct pmu *pmu)
{
int *count = this_cpu_ptr(pmu->pmu_disable_count);
@@ -1503,6 +1689,7 @@ group_sched_in(struct perf_event *group_event,

if (event_sched_in(group_event, cpuctx, ctx)) {
pmu->cancel_txn(pmu);
+ perf_cpu_hrtimer_restart(cpuctx);
return -EAGAIN;
}

@@ -1549,6 +1736,8 @@ group_error:

pmu->cancel_txn(pmu);

+ perf_cpu_hrtimer_restart(cpuctx);
+
return -EAGAIN;
}

@@ -1804,8 +1993,10 @@ static int __perf_event_enable(void *info)
* If this event can't go on and it's part of a
* group, then the whole group has to come off.
*/
- if (leader != event)
+ if (leader != event) {
group_sched_out(leader, cpuctx, ctx);
+ perf_cpu_hrtimer_restart(cpuctx);
+ }
if (leader->attr.pinned) {
update_group_times(leader);
leader->state = PERF_EVENT_STATE_ERROR;
@@ -2552,7 +2743,7 @@ static void rotate_ctx(struct perf_event_context *ctx)
* because they're strictly cpu affine and rotate_start is called with IRQs
* disabled, while rotate_context is called from IRQ context.
*/
-static void perf_rotate_context(struct perf_cpu_context *cpuctx)
+static int perf_rotate_context(struct perf_cpu_context *cpuctx)
{
struct perf_event_context *ctx = NULL;
int rotate = 0, remove = 1;
@@ -2591,6 +2782,8 @@ static void perf_rotate_context(struct perf_cpu_context *cpuctx)
done:
if (remove)
list_del_init(&cpuctx->rotation_list);
+
+ return rotate;
}

#ifdef CONFIG_NO_HZ_FULL
@@ -2622,10 +2815,6 @@ void perf_event_task_tick(void)
ctx = cpuctx->task_ctx;
if (ctx)
perf_adjust_freq_unthr_context(ctx, throttled);
-
- if (cpuctx->jiffies_interval == 1 ||
- !(jiffies % cpuctx->jiffies_interval))
- perf_rotate_context(cpuctx);
}
}

@@ -5036,7 +5225,7 @@ static DEFINE_PER_CPU(struct swevent_htable, swevent_htable);
* sign as trigger.
*/

-static u64 perf_swevent_set_period(struct perf_event *event)
+u64 perf_swevent_set_period(struct perf_event *event)
{
struct hw_perf_event *hwc = &event->hw;
u64 period = hwc->last_period;
@@ -5979,9 +6168,56 @@ type_show(struct device *dev, struct device_attribute *attr, char *page)
return snprintf(page, PAGE_SIZE-1, "%d\n", pmu->type);
}

+static ssize_t
+perf_event_mux_interval_ms_show(struct device *dev,
+ struct device_attribute *attr,
+ char *page)
+{
+ struct pmu *pmu = dev_get_drvdata(dev);
+
+ return snprintf(page, PAGE_SIZE-1, "%d\n", pmu->hrtimer_interval_ms);
+}
+
+static ssize_t
+perf_event_mux_interval_ms_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pmu *pmu = dev_get_drvdata(dev);
+ int timer, cpu, ret;
+
+ ret = kstrtoint(buf, 0, &timer);
+ if (ret)
+ return ret;
+
+ if (timer < 1)
+ return -EINVAL;
+
+ /* same value, noting to do */
+ if (timer == pmu->hrtimer_interval_ms)
+ return count;
+
+ pmu->hrtimer_interval_ms = timer;
+
+ /* update all cpuctx for this PMU */
+ for_each_possible_cpu(cpu) {
+ struct perf_cpu_context *cpuctx;
+ cpuctx = per_cpu_ptr(pmu->pmu_cpu_context, cpu);
+ cpuctx->hrtimer_interval = ns_to_ktime(NSEC_PER_MSEC * timer);
+
+ if (hrtimer_active(&cpuctx->hrtimer))
+ hrtimer_forward_now(&cpuctx->hrtimer, cpuctx->hrtimer_interval);
+ }
+
+ return count;
+}
+
+#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store)
+
static struct device_attribute pmu_dev_attrs[] = {
- __ATTR_RO(type),
- __ATTR_NULL,
+ __ATTR_RO(type),
+ __ATTR_RW(perf_event_mux_interval_ms),
+ __ATTR_NULL,
};

static int pmu_bus_running;
@@ -6027,7 +6263,7 @@ free_dev:
static struct lock_class_key cpuctx_mutex;
static struct lock_class_key cpuctx_lock;

-int perf_pmu_register(struct pmu *pmu, char *name, int type)
+int perf_pmu_register(struct pmu *pmu, const char *name, int type)
{
int cpu, ret;

@@ -6076,7 +6312,9 @@ skip_type:
lockdep_set_class(&cpuctx->ctx.lock, &cpuctx_lock);
cpuctx->ctx.type = cpu_context;
cpuctx->ctx.pmu = pmu;
- cpuctx->jiffies_interval = 1;
+
+ __perf_cpu_hrtimer_init(cpuctx, cpu);
+
INIT_LIST_HEAD(&cpuctx->rotation_list);
cpuctx->unique_pmu = pmu;
}
@@ -6402,11 +6640,6 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
if (!(mask & ~PERF_SAMPLE_BRANCH_PLM_ALL))
return -EINVAL;

- /* kernel level capture: check permissions */
- if ((mask & PERF_SAMPLE_BRANCH_PERM_PLM)
- && perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN))
- return -EACCES;
-
/* propagate priv level, when not set for branch */
if (!(mask & PERF_SAMPLE_BRANCH_PLM_ALL)) {

@@ -6424,6 +6657,10 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
*/
attr->branch_sample_type = mask;
}
+ /* privileged levels capture (kernel, hv): check permissions */
+ if ((mask & PERF_SAMPLE_BRANCH_PERM_PLM)
+ && perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN))
+ return -EACCES;
}

if (attr->sample_type & PERF_SAMPLE_REGS_USER) {
@@ -7476,7 +7713,6 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
case CPU_DOWN_PREPARE:
perf_event_exit_cpu(cpu);
break;
-
default:
break;
}
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c
index 20185ea..1559fb0 100644
--- a/kernel/events/hw_breakpoint.c
+++ b/kernel/events/hw_breakpoint.c
@@ -46,23 +46,26 @@
#include <linux/smp.h>

#include <linux/hw_breakpoint.h>
-
-
/*
* Constraints data
*/
+struct bp_cpuinfo {
+ /* Number of pinned cpu breakpoints in a cpu */
+ unsigned int cpu_pinned;
+ /* tsk_pinned[n] is the number of tasks having n+1 breakpoints */
+ unsigned int *tsk_pinned;
+ /* Number of non-pinned cpu/task breakpoints in a cpu */
+ unsigned int flexible; /* XXX: placeholder, see fetch_this_slot() */
+};

-/* Number of pinned cpu breakpoints in a cpu */
-static DEFINE_PER_CPU(unsigned int, nr_cpu_bp_pinned[TYPE_MAX]);
-
-/* Number of pinned task breakpoints in a cpu */
-static DEFINE_PER_CPU(unsigned int *, nr_task_bp_pinned[TYPE_MAX]);
-
-/* Number of non-pinned cpu/task breakpoints in a cpu */
-static DEFINE_PER_CPU(unsigned int, nr_bp_flexible[TYPE_MAX]);
-
+static DEFINE_PER_CPU(struct bp_cpuinfo, bp_cpuinfo[TYPE_MAX]);
static int nr_slots[TYPE_MAX];

+static struct bp_cpuinfo *get_bp_info(int cpu, enum bp_type_idx type)
+{
+ return per_cpu_ptr(bp_cpuinfo + type, cpu);
+}
+
/* Keep track of the breakpoints attached to tasks */
static LIST_HEAD(bp_task_head);

@@ -96,8 +99,8 @@ static inline enum bp_type_idx find_slot_idx(struct perf_event *bp)
*/
static unsigned int max_task_bp_pinned(int cpu, enum bp_type_idx type)
{
+ unsigned int *tsk_pinned = get_bp_info(cpu, type)->tsk_pinned;
int i;
- unsigned int *tsk_pinned = per_cpu(nr_task_bp_pinned[type], cpu);

for (i = nr_slots[type] - 1; i >= 0; i--) {
if (tsk_pinned[i] > 0)
@@ -127,6 +130,13 @@ static int task_bp_pinned(int cpu, struct perf_event *bp, enum bp_type_idx type)
return count;
}

+static const struct cpumask *cpumask_of_bp(struct perf_event *bp)
+{
+ if (bp->cpu >= 0)
+ return cpumask_of(bp->cpu);
+ return cpu_possible_mask;
+}
+
/*
* Report the number of pinned/un-pinned breakpoints we have in
* a given cpu (cpu > -1) or in all of them (cpu = -1).
@@ -135,25 +145,15 @@ static void
fetch_bp_busy_slots(struct bp_busy_slots *slots, struct perf_event *bp,
enum bp_type_idx type)
{
- int cpu = bp->cpu;
- struct task_struct *tsk = bp->hw.bp_target;
-
- if (cpu >= 0) {
- slots->pinned = per_cpu(nr_cpu_bp_pinned[type], cpu);
- if (!tsk)
- slots->pinned += max_task_bp_pinned(cpu, type);
- else
- slots->pinned += task_bp_pinned(cpu, bp, type);
- slots->flexible = per_cpu(nr_bp_flexible[type], cpu);
-
- return;
- }
+ const struct cpumask *cpumask = cpumask_of_bp(bp);
+ int cpu;

- for_each_possible_cpu(cpu) {
- unsigned int nr;
+ for_each_cpu(cpu, cpumask) {
+ struct bp_cpuinfo *info = get_bp_info(cpu, type);
+ int nr;

- nr = per_cpu(nr_cpu_bp_pinned[type], cpu);
- if (!tsk)
+ nr = info->cpu_pinned;
+ if (!bp->hw.bp_target)
nr += max_task_bp_pinned(cpu, type);
else
nr += task_bp_pinned(cpu, bp, type);
@@ -161,8 +161,7 @@ fetch_bp_busy_slots(struct bp_busy_slots *slots, struct perf_event *bp,
if (nr > slots->pinned)
slots->pinned = nr;

- nr = per_cpu(nr_bp_flexible[type], cpu);
-
+ nr = info->flexible;
if (nr > slots->flexible)
slots->flexible = nr;
}
@@ -182,29 +181,19 @@ fetch_this_slot(struct bp_busy_slots *slots, int weight)
/*
* Add a pinned breakpoint for the given task in our constraint table
*/
-static void toggle_bp_task_slot(struct perf_event *bp, int cpu, bool enable,
+static void toggle_bp_task_slot(struct perf_event *bp, int cpu,
enum bp_type_idx type, int weight)
{
- unsigned int *tsk_pinned;
- int old_count = 0;
- int old_idx = 0;
- int idx = 0;
-
- old_count = task_bp_pinned(cpu, bp, type);
- old_idx = old_count - 1;
- idx = old_idx + weight;
-
- /* tsk_pinned[n] is the number of tasks having n breakpoints */
- tsk_pinned = per_cpu(nr_task_bp_pinned[type], cpu);
- if (enable) {
- tsk_pinned[idx]++;
- if (old_count > 0)
- tsk_pinned[old_idx]--;
- } else {
- tsk_pinned[idx]--;
- if (old_count > 0)
- tsk_pinned[old_idx]++;
- }
+ unsigned int *tsk_pinned = get_bp_info(cpu, type)->tsk_pinned;
+ int old_idx, new_idx;
+
+ old_idx = task_bp_pinned(cpu, bp, type) - 1;
+ new_idx = old_idx + weight;
+
+ if (old_idx >= 0)
+ tsk_pinned[old_idx]--;
+ if (new_idx >= 0)
+ tsk_pinned[new_idx]++;
}

/*
@@ -214,33 +203,26 @@ static void
toggle_bp_slot(struct perf_event *bp, bool enable, enum bp_type_idx type,
int weight)
{
- int cpu = bp->cpu;
- struct task_struct *tsk = bp->hw.bp_target;
+ const struct cpumask *cpumask = cpumask_of_bp(bp);
+ int cpu;

- /* Pinned counter cpu profiling */
- if (!tsk) {
+ if (!enable)
+ weight = -weight;

- if (enable)
- per_cpu(nr_cpu_bp_pinned[type], bp->cpu) += weight;
- else
- per_cpu(nr_cpu_bp_pinned[type], bp->cpu) -= weight;
+ /* Pinned counter cpu profiling */
+ if (!bp->hw.bp_target) {
+ get_bp_info(bp->cpu, type)->cpu_pinned += weight;
return;
}

/* Pinned counter task profiling */
-
- if (!enable)
- list_del(&bp->hw.bp_list);
-
- if (cpu >= 0) {
- toggle_bp_task_slot(bp, cpu, enable, type, weight);
- } else {
- for_each_possible_cpu(cpu)
- toggle_bp_task_slot(bp, cpu, enable, type, weight);
- }
+ for_each_cpu(cpu, cpumask)
+ toggle_bp_task_slot(bp, cpu, type, weight);

if (enable)
list_add_tail(&bp->hw.bp_list, &bp_task_head);
+ else
+ list_del(&bp->hw.bp_list);
}

/*
@@ -261,8 +243,8 @@ __weak void arch_unregister_hw_breakpoint(struct perf_event *bp)
*
* - If attached to a single cpu, check:
*
- * (per_cpu(nr_bp_flexible, cpu) || (per_cpu(nr_cpu_bp_pinned, cpu)
- * + max(per_cpu(nr_task_bp_pinned, cpu)))) < HBP_NUM
+ * (per_cpu(info->flexible, cpu) || (per_cpu(info->cpu_pinned, cpu)
+ * + max(per_cpu(info->tsk_pinned, cpu)))) < HBP_NUM
*
* -> If there are already non-pinned counters in this cpu, it means
* there is already a free slot for them.
@@ -272,8 +254,8 @@ __weak void arch_unregister_hw_breakpoint(struct perf_event *bp)
*
* - If attached to every cpus, check:
*
- * (per_cpu(nr_bp_flexible, *) || (max(per_cpu(nr_cpu_bp_pinned, *))
- * + max(per_cpu(nr_task_bp_pinned, *)))) < HBP_NUM
+ * (per_cpu(info->flexible, *) || (max(per_cpu(info->cpu_pinned, *))
+ * + max(per_cpu(info->tsk_pinned, *)))) < HBP_NUM
*
* -> This is roughly the same, except we check the number of per cpu
* bp for every cpu and we keep the max one. Same for the per tasks
@@ -284,16 +266,16 @@ __weak void arch_unregister_hw_breakpoint(struct perf_event *bp)
*
* - If attached to a single cpu, check:
*
- * ((per_cpu(nr_bp_flexible, cpu) > 1) + per_cpu(nr_cpu_bp_pinned, cpu)
- * + max(per_cpu(nr_task_bp_pinned, cpu))) < HBP_NUM
+ * ((per_cpu(info->flexible, cpu) > 1) + per_cpu(info->cpu_pinned, cpu)
+ * + max(per_cpu(info->tsk_pinned, cpu))) < HBP_NUM
*
- * -> Same checks as before. But now the nr_bp_flexible, if any, must keep
+ * -> Same checks as before. But now the info->flexible, if any, must keep
* one register at least (or they will never be fed).
*
* - If attached to every cpus, check:
*
- * ((per_cpu(nr_bp_flexible, *) > 1) + max(per_cpu(nr_cpu_bp_pinned, *))
- * + max(per_cpu(nr_task_bp_pinned, *))) < HBP_NUM
+ * ((per_cpu(info->flexible, *) > 1) + max(per_cpu(info->cpu_pinned, *))
+ * + max(per_cpu(info->tsk_pinned, *))) < HBP_NUM
*/
static int __reserve_bp_slot(struct perf_event *bp)
{
@@ -518,8 +500,8 @@ register_wide_hw_breakpoint(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
void *context)
{
- struct perf_event * __percpu *cpu_events, **pevent, *bp;
- long err;
+ struct perf_event * __percpu *cpu_events, *bp;
+ long err = 0;
int cpu;

cpu_events = alloc_percpu(typeof(*cpu_events));
@@ -528,31 +510,21 @@ register_wide_hw_breakpoint(struct perf_event_attr *attr,

get_online_cpus();
for_each_online_cpu(cpu) {
- pevent = per_cpu_ptr(cpu_events, cpu);
bp = perf_event_create_kernel_counter(attr, cpu, NULL,
triggered, context);
-
- *pevent = bp;
-
if (IS_ERR(bp)) {
err = PTR_ERR(bp);
- goto fail;
+ break;
}
- }
- put_online_cpus();

- return cpu_events;
-
-fail:
- for_each_online_cpu(cpu) {
- pevent = per_cpu_ptr(cpu_events, cpu);
- if (IS_ERR(*pevent))
- break;
- unregister_hw_breakpoint(*pevent);
+ per_cpu(*cpu_events, cpu) = bp;
}
put_online_cpus();

- free_percpu(cpu_events);
+ if (likely(!err))
+ return cpu_events;
+
+ unregister_wide_hw_breakpoint(cpu_events);
return (void __percpu __force *)ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(register_wide_hw_breakpoint);
@@ -564,12 +536,10 @@ EXPORT_SYMBOL_GPL(register_wide_hw_breakpoint);
void unregister_wide_hw_breakpoint(struct perf_event * __percpu *cpu_events)
{
int cpu;
- struct perf_event **pevent;

- for_each_possible_cpu(cpu) {
- pevent = per_cpu_ptr(cpu_events, cpu);
- unregister_hw_breakpoint(*pevent);
- }
+ for_each_possible_cpu(cpu)
+ unregister_hw_breakpoint(per_cpu(*cpu_events, cpu));
+
free_percpu(cpu_events);
}
EXPORT_SYMBOL_GPL(unregister_wide_hw_breakpoint);
@@ -612,6 +582,11 @@ static int hw_breakpoint_add(struct perf_event *bp, int flags)
if (!(flags & PERF_EF_START))
bp->hw.state = PERF_HES_STOPPED;

+ if (is_sampling_event(bp)) {
+ bp->hw.last_period = bp->hw.sample_period;
+ perf_swevent_set_period(bp);
+ }
+
return arch_install_hw_breakpoint(bp);
}

@@ -650,7 +625,6 @@ static struct pmu perf_breakpoint = {

int __init init_hw_breakpoint(void)
{
- unsigned int **task_bp_pinned;
int cpu, err_cpu;
int i;

@@ -659,10 +633,11 @@ int __init init_hw_breakpoint(void)

for_each_possible_cpu(cpu) {
for (i = 0; i < TYPE_MAX; i++) {
- task_bp_pinned = &per_cpu(nr_task_bp_pinned[i], cpu);
- *task_bp_pinned = kzalloc(sizeof(int) * nr_slots[i],
- GFP_KERNEL);
- if (!*task_bp_pinned)
+ struct bp_cpuinfo *info = get_bp_info(cpu, i);
+
+ info->tsk_pinned = kcalloc(nr_slots[i], sizeof(int),
+ GFP_KERNEL);
+ if (!info->tsk_pinned)
goto err_alloc;
}
}
@@ -676,7 +651,7 @@ int __init init_hw_breakpoint(void)
err_alloc:
for_each_possible_cpu(err_cpu) {
for (i = 0; i < TYPE_MAX; i++)
- kfree(per_cpu(nr_task_bp_pinned[i], err_cpu));
+ kfree(get_bp_info(err_cpu, i)->tsk_pinned);
if (err_cpu == cpu)
break;
}
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 9edcf45..4ce13c3 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -120,7 +120,6 @@ extern int blk_iopoll_enabled;
/* Constants used for minimum and maximum */
#ifdef CONFIG_LOCKUP_DETECTOR
static int sixty = 60;
-static int neg_one = -1;
#endif

static int zero;
@@ -814,7 +813,7 @@ static struct ctl_table kern_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dowatchdog,
- .extra1 = &neg_one,
+ .extra1 = &zero,
.extra2 = &sixty,
},
{
@@ -1044,6 +1043,15 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = perf_proc_update_handler,
},
+ {
+ .procname = "perf_cpu_time_max_percent",
+ .data = &sysctl_perf_cpu_time_max_percent,
+ .maxlen = sizeof(sysctl_perf_cpu_time_max_percent),
+ .mode = 0644,
+ .proc_handler = perf_cpu_time_max_percent_handler,
+ .extra1 = &zero,
+ .extra2 = &one_hundred,
+ },
#endif
#ifdef CONFIG_KMEMCHECK
{
diff --git a/tools/lib/lk/Makefile b/tools/lib/lk/Makefile
index 926cbf3..2c5a197 100644
--- a/tools/lib/lk/Makefile
+++ b/tools/lib/lk/Makefile
@@ -1,5 +1,8 @@
include ../../scripts/Makefile.include

+CC = $(CROSS_COMPILE)gcc
+AR = $(CROSS_COMPILE)ar
+
# guard against environment variables
LIB_H=
LIB_OBJS=
diff --git a/tools/perf/Documentation/perf-archive.txt b/tools/perf/Documentation/perf-archive.txt
index fae174d..5032a14 100644
--- a/tools/perf/Documentation/perf-archive.txt
+++ b/tools/perf/Documentation/perf-archive.txt
@@ -13,7 +13,7 @@ SYNOPSIS
DESCRIPTION
-----------
This command runs runs perf-buildid-list --with-hits, and collects the files
-with the buildids found so that analisys of perf.data contents can be possible
+with the buildids found so that analysis of perf.data contents can be possible
on another machine.


diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 7d5f4f3..66dab74 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -210,6 +210,10 @@ OPTIONS
Demangle symbol names to human readable form. It's enabled by default,
disable with --no-demangle.

+--percent-limit::
+ Do not show entries which have an overhead under that percent.
+ (Default: 0).
+
SEE ALSO
--------
linkperf:perf-stat[1], linkperf:perf-annotate[1]
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 9f1a2fe..7fdd190 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -155,6 +155,10 @@ Default is to monitor all CPUS.

Default: fractal,0.5,callee.

+--percent-limit::
+ Do not show entries which have an overhead under that percent.
+ (Default: 0).
+
INTERACTIVE PROMPTING KEYS
--------------------------

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index b0f164b..203cb0e 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -51,189 +51,63 @@ include config/utilities.mak
# Define NO_BACKTRACE if you do not want stack backtrace debug feature
#
# Define NO_LIBNUMA if you do not want numa perf benchmark
+#
+# Define NO_LIBAUDIT if you do not want libaudit support
+#
+# Define NO_LIBBIONIC if you do not want bionic support

-$(OUTPUT)PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE
- @$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
-
-uname_M := $(shell uname -m 2>/dev/null || echo not)
-
-ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
- -e s/arm.*/arm/ -e s/sa110/arm/ \
- -e s/s390x/s390/ -e s/parisc64/parisc/ \
- -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
- -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
-NO_PERF_REGS := 1
-
-CC = $(CROSS_COMPILE)gcc
-AR = $(CROSS_COMPILE)ar
-
-# Additional ARCH settings for x86
-ifeq ($(ARCH),i386)
- override ARCH := x86
- NO_PERF_REGS := 0
- LIBUNWIND_LIBS = -lunwind -lunwind-x86
-endif
-ifeq ($(ARCH),x86_64)
- override ARCH := x86
- IS_X86_64 := 0
- ifeq (, $(findstring m32,$(EXTRA_CFLAGS)))
- IS_X86_64 := $(shell echo __x86_64__ | ${CC} -E -x c - | tail -n 1)
- endif
- ifeq (${IS_X86_64}, 1)
- RAW_ARCH := x86_64
- ARCH_CFLAGS := -DARCH_X86_64
- ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
- endif
- NO_PERF_REGS := 0
- LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
-endif
-
-# Treat warnings as errors unless directed not to
-ifneq ($(WERROR),0)
- CFLAGS_WERROR := -Werror
-endif
-
-ifeq ("$(origin DEBUG)", "command line")
- PERF_DEBUG = $(DEBUG)
-endif
-ifndef PERF_DEBUG
- CFLAGS_OPTIMIZE = -O6
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
endif

-ifdef PARSER_DEBUG
- PARSER_DEBUG_BISON := -t
- PARSER_DEBUG_FLEX := -d
- PARSER_DEBUG_CFLAGS := -DPARSER_DEBUG
+ifneq ($(objtree),)
+#$(info Determined 'objtree' to be $(objtree))
endif

-ifdef NO_NEWT
- NO_SLANG=1
+ifneq ($(OUTPUT),)
+#$(info Determined 'OUTPUT' to be $(OUTPUT))
endif

-CFLAGS = -fno-omit-frame-pointer -ggdb3 -funwind-tables -Wall -Wextra -std=gnu99 $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) $(PARSER_DEBUG_CFLAGS)
-EXTLIBS = -lpthread -lrt -lelf -lm
-ALL_CFLAGS = $(CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
-ALL_LDFLAGS = $(LDFLAGS)
-STRIP ?= strip
-
-# Among the variables below, these:
-# perfexecdir
-# template_dir
-# mandir
-# infodir
-# htmldir
-# ETC_PERFCONFIG (but not sysconfdir)
-# can be specified as a relative path some/where/else;
-# this is interpreted as relative to $(prefix) and "perf" at
-# runtime figures out where they are based on the path to the executable.
-# This can help installing the suite in a relocatable way.
-
-# Make the path relative to DESTDIR, not to prefix
-ifndef DESTDIR
-prefix = $(HOME)
-endif
-bindir_relative = bin
-bindir = $(prefix)/$(bindir_relative)
-mandir = share/man
-infodir = share/info
-perfexecdir = libexec/perf-core
-sharedir = $(prefix)/share
-template_dir = share/perf-core/templates
-htmldir = share/doc/perf-doc
-ifeq ($(prefix),/usr)
-sysconfdir = /etc
-ETC_PERFCONFIG = $(sysconfdir)/perfconfig
-else
-sysconfdir = $(prefix)/etc
-ETC_PERFCONFIG = etc/perfconfig
-endif
-lib = lib
+$(OUTPUT)PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE
+ @$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)

-export prefix bindir sharedir sysconfdir
+CC = $(CROSS_COMPILE)gcc
+AR = $(CROSS_COMPILE)ar

-RM = rm -f
-MKDIR = mkdir
-FIND = find
+RM = rm -f
+MKDIR = mkdir
+FIND = find
INSTALL = install
-FLEX = flex
-BISON= bison
-
-# sparse is architecture-neutral, which means that we need to tell it
-# explicitly what architecture to check for. Fix this up for yours..
-SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
-
-ifneq ($(MAKECMDGOALS),clean)
-ifneq ($(MAKECMDGOALS),tags)
--include config/feature-tests.mak
-
-ifeq ($(call get-executable,$(FLEX)),)
- dummy := $(error Error: $(FLEX) is missing on this system, please install it)
-endif
-
-ifeq ($(call get-executable,$(BISON)),)
- dummy := $(error Error: $(BISON) is missing on this system, please install it)
-endif
+FLEX = flex
+BISON = bison
+STRIP = strip

-ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -fstack-protector-all,-fstack-protector-all),y)
- CFLAGS := $(CFLAGS) -fstack-protector-all
-endif
+LK_DIR = $(srctree)/tools/lib/lk/
+TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/

-ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wstack-protector,-Wstack-protector),y)
- CFLAGS := $(CFLAGS) -Wstack-protector
-endif
+# include config/Makefile by default and rule out
+# non-config cases
+config := 1

-ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wvolatile-register-var,-Wvolatile-register-var),y)
- CFLAGS := $(CFLAGS) -Wvolatile-register-var
-endif
+NON_CONFIG_TARGETS := clean TAGS tags cscope help

-ifndef PERF_DEBUG
- ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -D_FORTIFY_SOURCE=2,-D_FORTIFY_SOURCE=2),y)
- CFLAGS := $(CFLAGS) -D_FORTIFY_SOURCE=2
- endif
+ifdef MAKECMDGOALS
+ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
+ config := 0
endif
-
-### --- END CONFIGURATION SECTION ---
-
-ifeq ($(srctree),)
-srctree := $(patsubst %/,%,$(dir $(shell pwd)))
-srctree := $(patsubst %/,%,$(dir $(srctree)))
-#$(info Determined 'srctree' to be $(srctree))
endif

-ifneq ($(objtree),)
-#$(info Determined 'objtree' to be $(objtree))
+ifeq ($(config),1)
+include config/Makefile
endif

-ifneq ($(OUTPUT),)
-#$(info Determined 'OUTPUT' to be $(OUTPUT))
-endif
+export prefix bindir sharedir sysconfdir

-BASIC_CFLAGS = \
- -Iutil/include \
- -Iarch/$(ARCH)/include \
- $(if $(objtree),-I$(objtree)/arch/$(ARCH)/include/generated/uapi) \
- -I$(srctree)/arch/$(ARCH)/include/uapi \
- -I$(srctree)/arch/$(ARCH)/include \
- $(if $(objtree),-I$(objtree)/include/generated/uapi) \
- -I$(srctree)/include/uapi \
- -I$(srctree)/include \
- -I$(OUTPUT)util \
- -Iutil \
- -I. \
- -I$(TRACE_EVENT_DIR) \
- -I../lib/ \
- -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
-
-BASIC_LDFLAGS =
-
-ifeq ($(call try-cc,$(SOURCE_BIONIC),$(CFLAGS),bionic),y)
- BIONIC := 1
- EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
- EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
- BASIC_CFLAGS += -I.
-endif
-endif # MAKECMDGOALS != tags
-endif # MAKECMDGOALS != clean
+# sparse is architecture-neutral, which means that we need to tell it
+# explicitly what architecture to check for. Fix this up for yours..
+SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__

# Guard against environment variables
BUILTIN_OBJS =
@@ -247,20 +121,17 @@ SCRIPT_SH += perf-archive.sh
grep-libs = $(filter -l%,$(1))
strip-libs = $(filter-out -l%,$(1))

-LK_DIR = ../lib/lk/
-TRACE_EVENT_DIR = ../lib/traceevent/
-
LK_PATH=$(LK_DIR)

ifneq ($(OUTPUT),)
- TE_PATH=$(OUTPUT)
+ TE_PATH=$(OUTPUT)
ifneq ($(subdir),)
- LK_PATH=$(OUTPUT)$(LK_DIR)
+ LK_PATH=$(OUTPUT)$(LK_DIR)
else
- LK_PATH=$(OUTPUT)
+ LK_PATH=$(OUTPUT)
endif
else
- TE_PATH=$(TRACE_EVENT_DIR)
+ TE_PATH=$(TRACE_EVENT_DIR)
endif

LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
@@ -278,10 +149,10 @@ export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so

PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
-PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBTRACEEVENT)
+PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBTRACEEVENT) $(LIBLK)

$(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
- $(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \
+ $(QUIET_GEN)CFLAGS='$(CFLAGS)' $(PYTHON_WORD) util/setup.py \
--quiet build_ext; \
mkdir -p $(OUTPUT)python && \
cp $(PYTHON_EXTBUILD_LIB)perf.so $(OUTPUT)python/
@@ -296,8 +167,6 @@ SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))
#
PROGRAMS += $(OUTPUT)perf

-LANG_BINDINGS =
-
# what 'all' will build and 'install' will install, in perfexecdir
ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS)

@@ -306,10 +175,10 @@ OTHER_PROGRAMS = $(OUTPUT)perf

# Set paths to tools early so that they can be used for version tests.
ifndef SHELL_PATH
- SHELL_PATH = /bin/sh
+ SHELL_PATH = /bin/sh
endif
ifndef PERL_PATH
- PERL_PATH = /usr/bin/perl
+ PERL_PATH = /usr/bin/perl
endif

export PERL_PATH
@@ -557,79 +426,14 @@ BUILTIN_OBJS += $(OUTPUT)builtin-mem.o

PERFLIBS = $(LIB_FILE) $(LIBLK) $(LIBTRACEEVENT)

-#
-# Platform specific tweaks
-#
-ifneq ($(MAKECMDGOALS),clean)
-ifneq ($(MAKECMDGOALS),tags)
-
# We choose to avoid "if .. else if .. else .. endif endif"
# because maintaining the nesting to match is a pain. If
# we had "elif" things would have been much nicer...

-ifdef NO_LIBELF
- NO_DWARF := 1
- NO_DEMANGLE := 1
- NO_LIBUNWIND := 1
-else
-FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
-ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
- FLAGS_GLIBC=$(ALL_CFLAGS) $(ALL_LDFLAGS)
- ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
- LIBC_SUPPORT := 1
- endif
- ifeq ($(BIONIC),1)
- LIBC_SUPPORT := 1
- endif
- ifeq ($(LIBC_SUPPORT),1)
- msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
-
- NO_LIBELF := 1
- NO_DWARF := 1
- NO_DEMANGLE := 1
- else
- msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
- endif
-else
- # for linking with debug library, run like:
- # make DEBUG=1 LIBDW_DIR=/opt/libdw/
- ifdef LIBDW_DIR
- LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
- LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
- endif
-
- FLAGS_DWARF=$(ALL_CFLAGS) $(LIBDW_CFLAGS) -ldw -lelf $(LIBDW_LDFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
- ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y)
- msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
- NO_DWARF := 1
- endif # Dwarf support
-endif # SOURCE_LIBELF
-endif # NO_LIBELF
-
-# There's only x86 (both 32 and 64) support for CFI unwind so far
-ifneq ($(ARCH),x86)
- NO_LIBUNWIND := 1
-endif
-
-ifndef NO_LIBUNWIND
-# for linking with debug library, run like:
-# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
-ifdef LIBUNWIND_DIR
- LIBUNWIND_CFLAGS := -I$(LIBUNWIND_DIR)/include
- LIBUNWIND_LDFLAGS := -L$(LIBUNWIND_DIR)/lib
-endif
-
-FLAGS_UNWIND=$(LIBUNWIND_CFLAGS) $(ALL_CFLAGS) $(LIBUNWIND_LDFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) $(LIBUNWIND_LIBS)
-ifneq ($(call try-cc,$(SOURCE_LIBUNWIND),$(FLAGS_UNWIND),libunwind),y)
- msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 0.99);
- NO_LIBUNWIND := 1
-endif # Libunwind support
-endif # NO_LIBUNWIND
-
-include arch/$(ARCH)/Makefile

ifneq ($(OUTPUT),)
- BASIC_CFLAGS += -I$(OUTPUT)
+ CFLAGS += -I$(OUTPUT)
endif

ifdef NO_LIBELF
@@ -647,281 +451,74 @@ BUILTIN_OBJS := $(filter-out $(OUTPUT)builtin-probe.o,$(BUILTIN_OBJS))
LIB_OBJS += $(OUTPUT)util/symbol-minimal.o

else # NO_LIBELF
-BASIC_CFLAGS += -DLIBELF_SUPPORT
-
-FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
-ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
- BASIC_CFLAGS += -DLIBELF_MMAP
-endif
-
ifndef NO_DWARF
-ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
- msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
-else
- BASIC_CFLAGS := -DDWARF_SUPPORT $(LIBDW_CFLAGS) $(BASIC_CFLAGS)
- BASIC_LDFLAGS := $(LIBDW_LDFLAGS) $(BASIC_LDFLAGS)
- EXTLIBS += -lelf -ldw
- LIB_OBJS += $(OUTPUT)util/probe-finder.o
- LIB_OBJS += $(OUTPUT)util/dwarf-aux.o
-endif # PERF_HAVE_DWARF_REGS
+ LIB_OBJS += $(OUTPUT)util/probe-finder.o
+ LIB_OBJS += $(OUTPUT)util/dwarf-aux.o
endif # NO_DWARF
endif # NO_LIBELF

ifndef NO_LIBUNWIND
- BASIC_CFLAGS += -DLIBUNWIND_SUPPORT
- EXTLIBS += $(LIBUNWIND_LIBS)
- BASIC_CFLAGS := $(LIBUNWIND_CFLAGS) $(BASIC_CFLAGS)
- BASIC_LDFLAGS := $(LIBUNWIND_LDFLAGS) $(BASIC_LDFLAGS)
- LIB_OBJS += $(OUTPUT)util/unwind.o
+ LIB_OBJS += $(OUTPUT)util/unwind.o
endif

ifndef NO_LIBAUDIT
- FLAGS_LIBAUDIT = $(ALL_CFLAGS) $(ALL_LDFLAGS) -laudit
- ifneq ($(call try-cc,$(SOURCE_LIBAUDIT),$(FLAGS_LIBAUDIT),libaudit),y)
- msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
- else
- BASIC_CFLAGS += -DLIBAUDIT_SUPPORT
- BUILTIN_OBJS += $(OUTPUT)builtin-trace.o
- EXTLIBS += -laudit
- endif
+ BUILTIN_OBJS += $(OUTPUT)builtin-trace.o
endif

ifndef NO_SLANG
- FLAGS_SLANG=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -I/usr/include/slang -lslang
- ifneq ($(call try-cc,$(SOURCE_SLANG),$(FLAGS_SLANG),libslang),y)
- msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
- else
- # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
- BASIC_CFLAGS += -I/usr/include/slang
- BASIC_CFLAGS += -DSLANG_SUPPORT
- EXTLIBS += -lslang
- LIB_OBJS += $(OUTPUT)ui/browser.o
- LIB_OBJS += $(OUTPUT)ui/browsers/annotate.o
- LIB_OBJS += $(OUTPUT)ui/browsers/hists.o
- LIB_OBJS += $(OUTPUT)ui/browsers/map.o
- LIB_OBJS += $(OUTPUT)ui/browsers/scripts.o
- LIB_OBJS += $(OUTPUT)ui/tui/setup.o
- LIB_OBJS += $(OUTPUT)ui/tui/util.o
- LIB_OBJS += $(OUTPUT)ui/tui/helpline.o
- LIB_OBJS += $(OUTPUT)ui/tui/progress.o
- LIB_H += ui/browser.h
- LIB_H += ui/browsers/map.h
- LIB_H += ui/keysyms.h
- LIB_H += ui/libslang.h
- endif
+ LIB_OBJS += $(OUTPUT)ui/browser.o
+ LIB_OBJS += $(OUTPUT)ui/browsers/annotate.o
+ LIB_OBJS += $(OUTPUT)ui/browsers/hists.o
+ LIB_OBJS += $(OUTPUT)ui/browsers/map.o
+ LIB_OBJS += $(OUTPUT)ui/browsers/scripts.o
+ LIB_OBJS += $(OUTPUT)ui/tui/setup.o
+ LIB_OBJS += $(OUTPUT)ui/tui/util.o
+ LIB_OBJS += $(OUTPUT)ui/tui/helpline.o
+ LIB_OBJS += $(OUTPUT)ui/tui/progress.o
+ LIB_H += ui/browser.h
+ LIB_H += ui/browsers/map.h
+ LIB_H += ui/keysyms.h
+ LIB_H += ui/libslang.h
endif

ifndef NO_GTK2
- FLAGS_GTK2=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
- ifneq ($(call try-cc,$(SOURCE_GTK2),$(FLAGS_GTK2),gtk2),y)
- msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
- else
- ifeq ($(call try-cc,$(SOURCE_GTK2_INFOBAR),$(FLAGS_GTK2),-DHAVE_GTK_INFO_BAR),y)
- BASIC_CFLAGS += -DHAVE_GTK_INFO_BAR
- endif
- BASIC_CFLAGS += -DGTK2_SUPPORT
- BASIC_CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
- EXTLIBS += $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
- LIB_OBJS += $(OUTPUT)ui/gtk/browser.o
- LIB_OBJS += $(OUTPUT)ui/gtk/hists.o
- LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
- LIB_OBJS += $(OUTPUT)ui/gtk/util.o
- LIB_OBJS += $(OUTPUT)ui/gtk/helpline.o
- LIB_OBJS += $(OUTPUT)ui/gtk/progress.o
- LIB_OBJS += $(OUTPUT)ui/gtk/annotate.o
- endif
+ LIB_OBJS += $(OUTPUT)ui/gtk/browser.o
+ LIB_OBJS += $(OUTPUT)ui/gtk/hists.o
+ LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
+ LIB_OBJS += $(OUTPUT)ui/gtk/util.o
+ LIB_OBJS += $(OUTPUT)ui/gtk/helpline.o
+ LIB_OBJS += $(OUTPUT)ui/gtk/progress.o
+ LIB_OBJS += $(OUTPUT)ui/gtk/annotate.o
endif

-ifdef NO_LIBPERL
- BASIC_CFLAGS += -DNO_LIBPERL
-else
- PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
- PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
- PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
- PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
- FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
-
- ifneq ($(call try-cc,$(SOURCE_PERL_EMBED),$(FLAGS_PERL_EMBED),perl),y)
- BASIC_CFLAGS += -DNO_LIBPERL
- else
- ALL_LDFLAGS += $(PERL_EMBED_LDFLAGS)
- EXTLIBS += $(PERL_EMBED_LIBADD)
- LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-perl.o
- LIB_OBJS += $(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o
- endif
+ifndef NO_LIBPERL
+ LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-perl.o
+ LIB_OBJS += $(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o
endif

-disable-python = $(eval $(disable-python_code))
-define disable-python_code
- BASIC_CFLAGS += -DNO_LIBPYTHON
- $(if $(1),$(warning No $(1) was found))
- $(warning Python support will not be built)
-endef
-
-override PYTHON := \
- $(call get-executable-or-default,PYTHON,python)
-
-ifndef PYTHON
- $(call disable-python,python interpreter)
-else
-
- PYTHON_WORD := $(call shell-wordify,$(PYTHON))
-
- ifdef NO_LIBPYTHON
- $(call disable-python)
- else
-
- override PYTHON_CONFIG := \
- $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config)
-
- ifndef PYTHON_CONFIG
- $(call disable-python,python-config tool)
- else
-
- PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
-
- PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
- PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
- PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
- PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
- FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
-
- ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED),python),y)
- $(call disable-python,Python.h (for Python 2.x))
- else
-
- ifneq ($(call try-cc,$(SOURCE_PYTHON_VERSION),$(FLAGS_PYTHON_EMBED),python version),y)
- $(warning Python 3 is not yet supported; please set)
- $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
- $(warning If you also have Python 2 installed, then)
- $(warning try something like:)
- $(warning $(and ,))
- $(warning $(and ,) make PYTHON=python2)
- $(warning $(and ,))
- $(warning Otherwise, disable Python support entirely:)
- $(warning $(and ,))
- $(warning $(and ,) make NO_LIBPYTHON=1)
- $(warning $(and ,))
- $(error $(and ,))
- else
- ALL_LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
- EXTLIBS += $(PYTHON_EMBED_LIBADD)
- LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o
- LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o
- LANG_BINDINGS += $(OUTPUT)python/perf.so
- endif
-
- endif
- endif
- endif
-endif
-
-ifdef NO_DEMANGLE
- BASIC_CFLAGS += -DNO_DEMANGLE
-else
- ifdef HAVE_CPLUS_DEMANGLE
- EXTLIBS += -liberty
- BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
- else
- FLAGS_BFD=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -DPACKAGE='perf' -lbfd
- has_bfd := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD),libbfd)
- ifeq ($(has_bfd),y)
- EXTLIBS += -lbfd
- else
- FLAGS_BFD_IBERTY=$(FLAGS_BFD) -liberty
- has_bfd_iberty := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD_IBERTY),liberty)
- ifeq ($(has_bfd_iberty),y)
- EXTLIBS += -lbfd -liberty
- else
- FLAGS_BFD_IBERTY_Z=$(FLAGS_BFD_IBERTY) -lz
- has_bfd_iberty_z := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD_IBERTY_Z),libz)
- ifeq ($(has_bfd_iberty_z),y)
- EXTLIBS += -lbfd -liberty -lz
- else
- FLAGS_CPLUS_DEMANGLE=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) -liberty
- has_cplus_demangle := $(call try-cc,$(SOURCE_CPLUS_DEMANGLE),$(FLAGS_CPLUS_DEMANGLE),demangle)
- ifeq ($(has_cplus_demangle),y)
- EXTLIBS += -liberty
- BASIC_CFLAGS += -DHAVE_CPLUS_DEMANGLE
- else
- msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
- BASIC_CFLAGS += -DNO_DEMANGLE
- endif
- endif
- endif
- endif
- endif
+ifndef NO_LIBPYTHON
+ LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o
+ LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o
endif

ifeq ($(NO_PERF_REGS),0)
- ifeq ($(ARCH),x86)
- LIB_H += arch/x86/include/perf_regs.h
- endif
- BASIC_CFLAGS += -DHAVE_PERF_REGS
-endif
-
-ifndef NO_STRLCPY
- ifeq ($(call try-cc,$(SOURCE_STRLCPY),,-DHAVE_STRLCPY),y)
- BASIC_CFLAGS += -DHAVE_STRLCPY
- endif
-endif
-
-ifndef NO_ON_EXIT
- ifeq ($(call try-cc,$(SOURCE_ON_EXIT),,-DHAVE_ON_EXIT),y)
- BASIC_CFLAGS += -DHAVE_ON_EXIT
- endif
-endif
-
-ifndef NO_BACKTRACE
- ifeq ($(call try-cc,$(SOURCE_BACKTRACE),,-DBACKTRACE_SUPPORT),y)
- BASIC_CFLAGS += -DBACKTRACE_SUPPORT
- endif
+ ifeq ($(ARCH),x86)
+ LIB_H += arch/x86/include/perf_regs.h
+ endif
endif

ifndef NO_LIBNUMA
- FLAGS_LIBNUMA = $(ALL_CFLAGS) $(ALL_LDFLAGS) -lnuma
- ifneq ($(call try-cc,$(SOURCE_LIBNUMA),$(FLAGS_LIBNUMA),libnuma),y)
- msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numa-libs-devel or libnuma-dev);
- else
- BASIC_CFLAGS += -DLIBNUMA_SUPPORT
- BUILTIN_OBJS += $(OUTPUT)bench/numa.o
- EXTLIBS += -lnuma
- endif
+ BUILTIN_OBJS += $(OUTPUT)bench/numa.o
endif

ifdef ASCIIDOC8
- export ASCIIDOC8
+ export ASCIIDOC8
endif

-endif # MAKECMDGOALS != tags
-endif # MAKECMDGOALS != clean
-
-# Shell quote (do not use $(call) to accommodate ancient setups);
-
-ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
-
-DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
-bindir_SQ = $(subst ','\'',$(bindir))
-bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
-mandir_SQ = $(subst ','\'',$(mandir))
-infodir_SQ = $(subst ','\'',$(infodir))
-perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
-template_dir_SQ = $(subst ','\'',$(template_dir))
-htmldir_SQ = $(subst ','\'',$(htmldir))
-prefix_SQ = $(subst ','\'',$(prefix))
-sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
-
-SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
-
LIBS = -Wl,--whole-archive $(PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group

-ALL_CFLAGS += $(BASIC_CFLAGS)
-ALL_CFLAGS += $(ARCH_CFLAGS)
-ALL_LDFLAGS += $(BASIC_LDFLAGS)
-
export INSTALL SHELL_PATH

-
### Build rules

SHELL = $(SHELL_PATH)
@@ -939,20 +536,20 @@ strip: $(PROGRAMS) $(OUTPUT)perf
$(OUTPUT)perf.o: perf.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -include $(OUTPUT)PERF-VERSION-FILE \
'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
- $(ALL_CFLAGS) -c $(filter %.c,$^) -o $@
+ $(CFLAGS) -c $(filter %.c,$^) -o $@

$(OUTPUT)perf: $(OUTPUT)perf.o $(BUILTIN_OBJS) $(PERFLIBS)
- $(QUIET_LINK)$(CC) $(ALL_CFLAGS) $(ALL_LDFLAGS) $(OUTPUT)perf.o \
+ $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OUTPUT)perf.o \
$(BUILTIN_OBJS) $(LIBS) -o $@

$(OUTPUT)builtin-help.o: builtin-help.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) \
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
'-DPERF_MAN_PATH="$(mandir_SQ)"' \
'-DPERF_INFO_PATH="$(infodir_SQ)"' $<

$(OUTPUT)builtin-timechart.o: builtin-timechart.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) \
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
'-DPERF_MAN_PATH="$(mandir_SQ)"' \
'-DPERF_INFO_PATH="$(infodir_SQ)"' $<
@@ -977,77 +574,77 @@ $(OUTPUT)perf.o perf.spec \
# over the general rule for .o

$(OUTPUT)util/%-flex.o: $(OUTPUT)util/%-flex.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c -Iutil/ $(ALL_CFLAGS) -w $<
+ $(QUIET_CC)$(CC) -o $@ -c -Iutil/ $(CFLAGS) -w $<

$(OUTPUT)util/%-bison.o: $(OUTPUT)util/%-bison.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c -Iutil/ $(ALL_CFLAGS) -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w $<
+ $(QUIET_CC)$(CC) -o $@ -c -Iutil/ $(CFLAGS) -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w $<

$(OUTPUT)%.o: %.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $<
$(OUTPUT)%.i: %.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -E $(ALL_CFLAGS) $<
+ $(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
$(OUTPUT)%.s: %.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -S $(ALL_CFLAGS) $<
+ $(QUIET_CC)$(CC) -o $@ -S $(CFLAGS) $<
$(OUTPUT)%.o: %.S
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $<
$(OUTPUT)%.s: %.S
- $(QUIET_CC)$(CC) -o $@ -E $(ALL_CFLAGS) $<
+ $(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<

$(OUTPUT)util/exec_cmd.o: util/exec_cmd.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) \
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
'-DPERF_EXEC_PATH="$(perfexecdir_SQ)"' \
'-DPREFIX="$(prefix_SQ)"' \
$<

$(OUTPUT)tests/attr.o: tests/attr.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) \
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
'-DBINDIR="$(bindir_SQ)"' -DPYTHON='"$(PYTHON_WORD)"' \
$<

$(OUTPUT)tests/python-use.o: tests/python-use.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) \
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
-DPYTHONPATH='"$(OUTPUT)python"' \
-DPYTHON='"$(PYTHON_WORD)"' \
$<

$(OUTPUT)util/config.o: util/config.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<

$(OUTPUT)ui/browser.o: ui/browser.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<

$(OUTPUT)ui/browsers/annotate.o: ui/browsers/annotate.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<

$(OUTPUT)ui/browsers/hists.o: ui/browsers/hists.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<

$(OUTPUT)ui/browsers/map.o: ui/browsers/map.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<

$(OUTPUT)ui/browsers/scripts.o: ui/browsers/scripts.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DENABLE_SLFUTURE_CONST $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<

$(OUTPUT)util/rbtree.o: ../../lib/rbtree.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<

$(OUTPUT)util/parse-events.o: util/parse-events.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -Wno-redundant-decls $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-redundant-decls $<

$(OUTPUT)util/scripting-engines/trace-event-perl.o: util/scripting-engines/trace-event-perl.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<

$(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o: scripts/perl/Perf-Trace-Util/Context.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs $<

$(OUTPUT)util/scripting-engines/trace-event-python.o: util/scripting-engines/trace-event-python.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<

$(OUTPUT)scripts/python/Perf-Trace-Util/Context.o: scripts/python/Perf-Trace-Util/Context.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs $<
+ $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs $<

$(OUTPUT)perf-%: %.o $(PERFLIBS)
- $(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)
+ $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $(filter %.o,$^) $(LIBS)

$(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
$(patsubst perf-%,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
@@ -1134,7 +731,7 @@ cscope:
$(FIND) . -name '*.[hcS]' -print | xargs cscope -b

### Detect prefix changes
-TRACK_CFLAGS = $(subst ','\'',$(ALL_CFLAGS)):\
+TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):\
$(bindir_SQ):$(perfexecdir_SQ):$(template_dir_SQ):$(prefix_SQ)

$(OUTPUT)PERF-CFLAGS: .FORCE-PERF-CFLAGS
@@ -1155,7 +752,7 @@ check: $(OUTPUT)common-cmds.h
then \
for i in *.c */*.c; \
do \
- sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; \
+ sparse $(CFLAGS) $(SPARSE_FLAGS) $$i || exit; \
done; \
else \
exit 1; \
@@ -1163,13 +760,6 @@ check: $(OUTPUT)common-cmds.h

### Installation rules

-ifneq ($(filter /%,$(firstword $(perfexecdir))),)
-perfexec_instdir = $(perfexecdir)
-else
-perfexec_instdir = $(prefix)/$(perfexecdir)
-endif
-perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
-
install-bin: all
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 2d0462d..da8f8eb 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -323,13 +323,20 @@ static void hists__baseline_only(struct hists *hists)

static void hists__precompute(struct hists *hists)
{
- struct rb_node *next = rb_first(&hists->entries);
+ struct rb_root *root;
+ struct rb_node *next;
+
+ if (sort__need_collapse)
+ root = &hists->entries_collapsed;
+ else
+ root = hists->entries_in;

+ next = rb_first(root);
while (next != NULL) {
- struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node);
+ struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in);
struct hist_entry *pair = hist_entry__next_pair(he);

- next = rb_next(&he->rb_node);
+ next = rb_next(&he->rb_node_in);
if (!pair)
continue;

@@ -457,7 +464,7 @@ static void hists__process(struct hists *old, struct hists *new)
hists__output_resort(new);
}

- hists__fprintf(new, true, 0, 0, stdout);
+ hists__fprintf(new, true, 0, 0, 0, stdout);
}

static int __cmd_diff(void)
@@ -611,9 +618,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)

setup_pager();

- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", NULL);
- sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", NULL);
- sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", NULL);
+ sort__setup_elide(NULL);

return __cmd_diff();
}
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 533501e..24b78ae 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -328,6 +328,7 @@ static int kvm_events_hash_fn(u64 key)
static bool kvm_event_expand(struct kvm_event *event, int vcpu_id)
{
int old_max_vcpu = event->max_vcpu;
+ void *prev;

if (vcpu_id < event->max_vcpu)
return true;
@@ -335,9 +336,11 @@ static bool kvm_event_expand(struct kvm_event *event, int vcpu_id)
while (event->max_vcpu <= vcpu_id)
event->max_vcpu += DEFAULT_VCPU_NUM;

+ prev = event->vcpu;
event->vcpu = realloc(event->vcpu,
event->max_vcpu * sizeof(*event->vcpu));
if (!event->vcpu) {
+ free(prev);
pr_err("Not enough memory\n");
return false;
}
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index cdf58ec..fff985c 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -198,7 +198,6 @@ static void perf_record__sig_exit(int exit_status __maybe_unused, void *arg)
return;

signal(signr, SIG_DFL);
- kill(getpid(), signr);
}

static bool perf_evlist__equal(struct perf_evlist *evlist,
@@ -404,6 +403,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
signal(SIGCHLD, sig_handler);
signal(SIGINT, sig_handler);
signal(SIGUSR1, sig_handler);
+ signal(SIGTERM, sig_handler);

if (!output_name) {
if (!fstat(STDOUT_FILENO, &st) && S_ISFIFO(st.st_mode))
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index bd0ca81..ca98d34 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -52,6 +52,7 @@ struct perf_report {
symbol_filter_t annotate_init;
const char *cpu_list;
const char *symbol_filter_str;
+ float min_percent;
DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
};

@@ -61,6 +62,11 @@ static int perf_report_config(const char *var, const char *value, void *cb)
symbol_conf.event_group = perf_config_bool(var, value);
return 0;
}
+ if (!strcmp(var, "report.percent-limit")) {
+ struct perf_report *rep = cb;
+ rep->min_percent = strtof(value, NULL);
+ return 0;
+ }

return perf_default_config(var, value, cb);
}
@@ -187,6 +193,9 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
for (i = 0; i < sample->branch_stack->nr; i++) {
if (rep->hide_unresolved && !(bi[i].from.sym && bi[i].to.sym))
continue;
+
+ err = -ENOMEM;
+
/*
* The report shows the percentage of total branches captured
* and not events sampled. Thus we use a pseudo period of 1.
@@ -195,7 +204,6 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
&bi[i], 1, 1);
if (he) {
struct annotation *notes;
- err = -ENOMEM;
bx = he->branch_info;
if (bx->from.sym && use_browser == 1 && sort__has_sym) {
notes = symbol__annotation(bx->from.sym);
@@ -226,11 +234,12 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
}
evsel->hists.stats.total_period += 1;
hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
- err = 0;
} else
- return -ENOMEM;
+ goto out;
}
+ err = 0;
out:
+ free(bi);
return err;
}

@@ -294,6 +303,7 @@ static int process_sample_event(struct perf_tool *tool,
{
struct perf_report *rep = container_of(tool, struct perf_report, tool);
struct addr_location al;
+ int ret;

if (perf_event__preprocess_sample(event, machine, &al, sample,
rep->annotate_init) < 0) {
@@ -308,28 +318,25 @@ static int process_sample_event(struct perf_tool *tool,
if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
return 0;

- if (sort__branch_mode == 1) {
- if (perf_report__add_branch_hist_entry(tool, &al, sample,
- evsel, machine)) {
+ if (sort__mode == SORT_MODE__BRANCH) {
+ ret = perf_report__add_branch_hist_entry(tool, &al, sample,
+ evsel, machine);
+ if (ret < 0)
pr_debug("problem adding lbr entry, skipping event\n");
- return -1;
- }
} else if (rep->mem_mode == 1) {
- if (perf_report__add_mem_hist_entry(tool, &al, sample,
- evsel, machine, event)) {
+ ret = perf_report__add_mem_hist_entry(tool, &al, sample,
+ evsel, machine, event);
+ if (ret < 0)
pr_debug("problem adding mem entry, skipping event\n");
- return -1;
- }
} else {
if (al.map != NULL)
al.map->dso->hit = 1;

- if (perf_evsel__add_hist_entry(evsel, &al, sample, machine)) {
+ ret = perf_evsel__add_hist_entry(evsel, &al, sample, machine);
+ if (ret < 0)
pr_debug("problem incrementing symbol period, skipping event\n");
- return -1;
- }
}
- return 0;
+ return ret;
}

static int process_read_event(struct perf_tool *tool,
@@ -384,7 +391,7 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
}
}

- if (sort__branch_mode == 1) {
+ if (sort__mode == SORT_MODE__BRANCH) {
if (!self->fd_pipe &&
!(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
ui__error("Selected -b but no branch data. "
@@ -455,7 +462,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
continue;

hists__fprintf_nr_sample_events(rep, hists, evname, stdout);
- hists__fprintf(hists, true, 0, 0, stdout);
+ hists__fprintf(hists, true, 0, 0, rep->min_percent, stdout);
fprintf(stdout, "\n\n");
}

@@ -574,8 +581,8 @@ static int __cmd_report(struct perf_report *rep)
if (use_browser > 0) {
if (use_browser == 1) {
ret = perf_evlist__tui_browse_hists(session->evlist,
- help,
- NULL,
+ help, NULL,
+ rep->min_percent,
&session->header.env);
/*
* Usually "ret" is the last pressed key, and we only
@@ -586,7 +593,7 @@ static int __cmd_report(struct perf_report *rep)

} else if (use_browser == 2) {
perf_evlist__gtk_browse_hists(session->evlist, help,
- NULL);
+ NULL, rep->min_percent);
}
} else
perf_evlist__tty_browse_hists(session->evlist, rep, help);
@@ -691,7 +698,19 @@ static int
parse_branch_mode(const struct option *opt __maybe_unused,
const char *str __maybe_unused, int unset)
{
- sort__branch_mode = !unset;
+ int *branch_mode = opt->value;
+
+ *branch_mode = !unset;
+ return 0;
+}
+
+static int
+parse_percent_limit(const struct option *opt, const char *str,
+ int unset __maybe_unused)
+{
+ struct perf_report *rep = opt->value;
+
+ rep->min_percent = strtof(str, NULL);
return 0;
}

@@ -700,6 +719,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
struct perf_session *session;
struct stat st;
bool has_br_stack = false;
+ int branch_mode = -1;
int ret = -1;
char callchain_default_opt[] = "fractal,0.5,callee";
const char * const report_usage[] = {
@@ -796,17 +816,19 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
"Show a column with the sum of periods"),
OPT_BOOLEAN(0, "group", &symbol_conf.event_group,
"Show event group information together"),
- OPT_CALLBACK_NOOPT('b', "branch-stack", &sort__branch_mode, "",
+ OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
"use branch records for histogram filling", parse_branch_mode),
OPT_STRING(0, "objdump", &objdump_path, "path",
"objdump binary to use for disassembly and annotations"),
OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
"Disable symbol demangling"),
OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
+ OPT_CALLBACK(0, "percent-limit", &report, "percent",
+ "Don't show entries under that percent", parse_percent_limit),
OPT_END()
};

- perf_config(perf_report_config, NULL);
+ perf_config(perf_report_config, &report);

argc = parse_options(argc, argv, options, report_usage, 0);

@@ -846,11 +868,11 @@ repeat:
has_br_stack = perf_header__has_feat(&session->header,
HEADER_BRANCH_STACK);

- if (sort__branch_mode == -1 && has_br_stack)
- sort__branch_mode = 1;
+ if (branch_mode == -1 && has_br_stack)
+ sort__mode = SORT_MODE__BRANCH;

- /* sort__branch_mode could be 0 if --no-branch-stack */
- if (sort__branch_mode == 1) {
+ /* sort__mode could be NORMAL if --no-branch-stack */
+ if (sort__mode == SORT_MODE__BRANCH) {
/*
* if no sort_order is provided, then specify
* branch-mode specific order
@@ -861,10 +883,12 @@ repeat:

}
if (report.mem_mode) {
- if (sort__branch_mode == 1) {
+ if (sort__mode == SORT_MODE__BRANCH) {
fprintf(stderr, "branch and mem mode incompatible\n");
goto error;
}
+ sort__mode = SORT_MODE__MEMORY;
+
/*
* if no sort_order is provided, then specify
* branch-mode specific order
@@ -929,25 +953,7 @@ repeat:
report.symbol_filter_str = argv[0];
}

- sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);
-
- if (sort__branch_mode == 1) {
- sort_entry__setup_elide(&sort_dso_from, symbol_conf.dso_from_list, "dso_from", stdout);
- sort_entry__setup_elide(&sort_dso_to, symbol_conf.dso_to_list, "dso_to", stdout);
- sort_entry__setup_elide(&sort_sym_from, symbol_conf.sym_from_list, "sym_from", stdout);
- sort_entry__setup_elide(&sort_sym_to, symbol_conf.sym_to_list, "sym_to", stdout);
- } else {
- if (report.mem_mode) {
- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "symbol_daddr", stdout);
- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso_daddr", stdout);
- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "mem", stdout);
- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "local_weight", stdout);
- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "tlb", stdout);
- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "snoop", stdout);
- }
- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout);
- sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout);
- }
+ sort__setup_elide(stdout);

ret = __cmd_report(&report);
if (ret == K_SWITCH_INPUT_DATA) {
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 67bdb9f..f036af9 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -70,10 +70,11 @@

static volatile int done;

+#define HEADER_LINE_NR 5
+
static void perf_top__update_print_entries(struct perf_top *top)
{
- if (top->print_entries > 9)
- top->print_entries -= 9;
+ top->print_entries = top->winsize.ws_row - HEADER_LINE_NR;
}

static void perf_top__sig_winch(int sig __maybe_unused,
@@ -82,13 +83,6 @@ static void perf_top__sig_winch(int sig __maybe_unused,
struct perf_top *top = arg;

get_term_dimensions(&top->winsize);
- if (!top->print_entries
- || (top->print_entries+4) > top->winsize.ws_row) {
- top->print_entries = top->winsize.ws_row;
- } else {
- top->print_entries += 4;
- top->winsize.ws_row = top->print_entries;
- }
perf_top__update_print_entries(top);
}

@@ -251,8 +245,11 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
{
struct hist_entry *he;

+ pthread_mutex_lock(&evsel->hists.lock);
he = __hists__add_entry(&evsel->hists, al, NULL, sample->period,
sample->weight);
+ pthread_mutex_unlock(&evsel->hists.lock);
+
if (he == NULL)
return NULL;

@@ -290,16 +287,17 @@ static void perf_top__print_sym_table(struct perf_top *top)
return;
}

- hists__collapse_resort_threaded(&top->sym_evsel->hists);
- hists__output_resort_threaded(&top->sym_evsel->hists);
- hists__decay_entries_threaded(&top->sym_evsel->hists,
- top->hide_user_symbols,
- top->hide_kernel_symbols);
+ hists__collapse_resort(&top->sym_evsel->hists);
+ hists__output_resort(&top->sym_evsel->hists);
+ hists__decay_entries(&top->sym_evsel->hists,
+ top->hide_user_symbols,
+ top->hide_kernel_symbols);
hists__output_recalc_col_len(&top->sym_evsel->hists,
- top->winsize.ws_row - 3);
+ top->print_entries - printed);
putchar('\n');
hists__fprintf(&top->sym_evsel->hists, false,
- top->winsize.ws_row - 4 - printed, win_width, stdout);
+ top->print_entries - printed, win_width,
+ top->min_percent, stdout);
}

static void prompt_integer(int *target, const char *msg)
@@ -477,7 +475,6 @@ static bool perf_top__handle_keypress(struct perf_top *top, int c)
perf_top__sig_winch(SIGWINCH, NULL, top);
sigaction(SIGWINCH, &act, NULL);
} else {
- perf_top__sig_winch(SIGWINCH, NULL, top);
signal(SIGWINCH, SIG_DFL);
}
break;
@@ -556,11 +553,11 @@ static void perf_top__sort_new_samples(void *arg)
if (t->evlist->selected != NULL)
t->sym_evsel = t->evlist->selected;

- hists__collapse_resort_threaded(&t->sym_evsel->hists);
- hists__output_resort_threaded(&t->sym_evsel->hists);
- hists__decay_entries_threaded(&t->sym_evsel->hists,
- t->hide_user_symbols,
- t->hide_kernel_symbols);
+ hists__collapse_resort(&t->sym_evsel->hists);
+ hists__output_resort(&t->sym_evsel->hists);
+ hists__decay_entries(&t->sym_evsel->hists,
+ t->hide_user_symbols,
+ t->hide_kernel_symbols);
}

static void *display_thread_tui(void *arg)
@@ -584,7 +581,7 @@ static void *display_thread_tui(void *arg)
list_for_each_entry(pos, &top->evlist->entries, node)
pos->hists.uid_filter_str = top->record_opts.target.uid_str;

- perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
+ perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent,
&top->session->header.env);

done = 1;
@@ -794,7 +791,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
return;
}

- if (top->sort_has_symbols)
+ if (sort__has_sym)
perf_top__record_precise_ip(top, he, evsel->idx, ip);
}

@@ -912,9 +909,9 @@ out_err:
return -1;
}

-static int perf_top__setup_sample_type(struct perf_top *top)
+static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused)
{
- if (!top->sort_has_symbols) {
+ if (!sort__has_sym) {
if (symbol_conf.use_callchain) {
ui__error("Selected -g but \"sym\" not present in --sort/-s.");
return -EINVAL;
@@ -1025,6 +1022,16 @@ parse_callchain_opt(const struct option *opt, const char *arg, int unset)
return record_parse_callchain_opt(opt, arg, unset);
}

+static int
+parse_percent_limit(const struct option *opt, const char *arg,
+ int unset __maybe_unused)
+{
+ struct perf_top *top = opt->value;
+
+ top->min_percent = strtof(arg, NULL);
+ return 0;
+}
+
int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
{
int status;
@@ -1110,6 +1117,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
"Specify disassembler style (e.g. -M intel for intel syntax)"),
OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
+ OPT_CALLBACK(0, "percent-limit", &top, "percent",
+ "Don't show entries under that percent", parse_percent_limit),
OPT_END()
};
const char * const top_usage[] = {
@@ -1133,6 +1142,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
if (setup_sorting() < 0)
usage_with_options(top_usage, options);

+ /* display thread wants entries to be collapsed in a different tree */
+ sort__need_collapse = 1;
+
if (top.use_stdio)
use_browser = 0;
else if (top.use_tui)
@@ -1200,15 +1212,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
if (symbol__init() < 0)
return -1;

- sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout);
- sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);
- sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout);
-
- /*
- * Avoid annotation data structures overhead when symbols aren't on the
- * sort list.
- */
- top.sort_has_symbols = sort_sym.list.next != NULL;
+ sort__setup_elide(stdout);

get_term_dimensions(&top.winsize);
if (top.print_entries == 0) {
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
new file mode 100644
index 0000000..f139dcd
--- /dev/null
+++ b/tools/perf/config/Makefile
@@ -0,0 +1,477 @@
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
+ -e s/arm.*/arm/ -e s/sa110/arm/ \
+ -e s/s390x/s390/ -e s/parisc64/parisc/ \
+ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
+ -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
+NO_PERF_REGS := 1
+CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
+
+# Additional ARCH settings for x86
+ifeq ($(ARCH),i386)
+ override ARCH := x86
+ NO_PERF_REGS := 0
+ LIBUNWIND_LIBS = -lunwind -lunwind-x86
+endif
+
+ifeq ($(ARCH),x86_64)
+ override ARCH := x86
+ IS_X86_64 := 0
+ ifeq (, $(findstring m32,$(CFLAGS)))
+ IS_X86_64 := $(shell echo __x86_64__ | ${CC} -E -x c - | tail -n 1)
+ endif
+ ifeq (${IS_X86_64}, 1)
+ RAW_ARCH := x86_64
+ CFLAGS += -DARCH_X86_64
+ ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
+ endif
+ NO_PERF_REGS := 0
+ LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
+endif
+
+ifeq ($(NO_PERF_REGS),0)
+ CFLAGS += -DHAVE_PERF_REGS
+endif
+
+ifeq ($(src-perf),)
+src-perf := $(srctree)/tools/perf
+endif
+
+ifeq ($(obj-perf),)
+obj-perf := $(objtree)
+endif
+
+ifneq ($(obj-perf),)
+obj-perf := $(abspath $(obj-perf))/
+endif
+
+# include ARCH specific config
+-include $(src-perf)/arch/$(ARCH)/Makefile
+
+include $(src-perf)/config/feature-tests.mak
+include $(src-perf)/config/utilities.mak
+
+ifeq ($(call get-executable,$(FLEX)),)
+ dummy := $(error Error: $(FLEX) is missing on this system, please install it)
+endif
+
+ifeq ($(call get-executable,$(BISON)),)
+ dummy := $(error Error: $(BISON) is missing on this system, please install it)
+endif
+
+# Treat warnings as errors unless directed not to
+ifneq ($(WERROR),0)
+ CFLAGS += -Werror
+endif
+
+ifeq ("$(origin DEBUG)", "command line")
+ PERF_DEBUG = $(DEBUG)
+endif
+ifndef PERF_DEBUG
+ CFLAGS += -O6
+endif
+
+ifdef PARSER_DEBUG
+ PARSER_DEBUG_BISON := -t
+ PARSER_DEBUG_FLEX := -d
+ CFLAGS += -DPARSER_DEBUG
+endif
+
+CFLAGS += -fno-omit-frame-pointer
+CFLAGS += -ggdb3
+CFLAGS += -funwind-tables
+CFLAGS += -Wall
+CFLAGS += -Wextra
+CFLAGS += -std=gnu99
+
+EXTLIBS = -lpthread -lrt -lelf -lm
+
+ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -fstack-protector-all,-fstack-protector-all),y)
+ CFLAGS += -fstack-protector-all
+endif
+
+ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wstack-protector,-Wstack-protector),y)
+ CFLAGS += -Wstack-protector
+endif
+
+ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wvolatile-register-var,-Wvolatile-register-var),y)
+ CFLAGS += -Wvolatile-register-var
+endif
+
+ifndef PERF_DEBUG
+ ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -D_FORTIFY_SOURCE=2,-D_FORTIFY_SOURCE=2),y)
+ CFLAGS += -D_FORTIFY_SOURCE=2
+ endif
+endif
+
+CFLAGS += -I$(src-perf)/util/include
+CFLAGS += -I$(src-perf)/arch/$(ARCH)/include
+CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi
+CFLAGS += -I$(srctree)/arch/$(ARCH)/include
+CFLAGS += -I$(srctree)/include/uapi
+CFLAGS += -I$(srctree)/include
+
+# $(obj-perf) for generated common-cmds.h
+# $(obj-perf)/util for generated bison/flex headers
+ifneq ($(OUTPUT),)
+CFLAGS += -I$(obj-perf)/util
+CFLAGS += -I$(obj-perf)
+endif
+
+CFLAGS += -I$(src-perf)/util
+CFLAGS += -I$(src-perf)
+CFLAGS += -I$(TRACE_EVENT_DIR)
+CFLAGS += -I$(srctree)/tools/lib/
+
+CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
+
+ifndef NO_BIONIC
+ifeq ($(call try-cc,$(SOURCE_BIONIC),$(CFLAGS),bionic),y)
+ BIONIC := 1
+ EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
+ EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
+endif
+endif # NO_BIONIC
+
+ifdef NO_LIBELF
+ NO_DWARF := 1
+ NO_DEMANGLE := 1
+ NO_LIBUNWIND := 1
+else
+FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
+ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
+ FLAGS_GLIBC=$(CFLAGS) $(LDFLAGS)
+ ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
+ LIBC_SUPPORT := 1
+ endif
+ ifeq ($(BIONIC),1)
+ LIBC_SUPPORT := 1
+ endif
+ ifeq ($(LIBC_SUPPORT),1)
+ msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
+
+ NO_LIBELF := 1
+ NO_DWARF := 1
+ NO_DEMANGLE := 1
+ else
+ msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
+ endif
+else
+ # for linking with debug library, run like:
+ # make DEBUG=1 LIBDW_DIR=/opt/libdw/
+ ifdef LIBDW_DIR
+ LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
+ LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
+ endif
+
+ FLAGS_DWARF=$(CFLAGS) $(LIBDW_CFLAGS) -ldw -lelf $(LIBDW_LDFLAGS) $(LDFLAGS) $(EXTLIBS)
+ ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y)
+ msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
+ NO_DWARF := 1
+ endif # Dwarf support
+endif # SOURCE_LIBELF
+endif # NO_LIBELF
+
+ifndef NO_LIBELF
+CFLAGS += -DLIBELF_SUPPORT
+FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
+ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
+ CFLAGS += -DLIBELF_MMAP
+endif
+
+# include ARCH specific config
+-include $(src-perf)/arch/$(ARCH)/Makefile
+
+ifndef NO_DWARF
+ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
+ msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
+ NO_DWARF := 1
+else
+ CFLAGS += -DDWARF_SUPPORT $(LIBDW_CFLAGS)
+ LDFLAGS += $(LIBDW_LDFLAGS)
+ EXTLIBS += -lelf -ldw
+endif # PERF_HAVE_DWARF_REGS
+endif # NO_DWARF
+
+endif # NO_LIBELF
+
+ifndef NO_LIBELF
+CFLAGS += -DLIBELF_SUPPORT
+FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
+ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
+ CFLAGS += -DLIBELF_MMAP
+endif # try-cc
+endif # NO_LIBELF
+
+# There's only x86 (both 32 and 64) support for CFI unwind so far
+ifneq ($(ARCH),x86)
+ NO_LIBUNWIND := 1
+endif
+
+ifndef NO_LIBUNWIND
+# for linking with debug library, run like:
+# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
+ifdef LIBUNWIND_DIR
+ LIBUNWIND_CFLAGS := -I$(LIBUNWIND_DIR)/include
+ LIBUNWIND_LDFLAGS := -L$(LIBUNWIND_DIR)/lib
+endif
+
+FLAGS_UNWIND=$(LIBUNWIND_CFLAGS) $(CFLAGS) $(LIBUNWIND_LDFLAGS) $(LDFLAGS) $(EXTLIBS) $(LIBUNWIND_LIBS)
+ifneq ($(call try-cc,$(SOURCE_LIBUNWIND),$(FLAGS_UNWIND),libunwind),y)
+ msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 0.99);
+ NO_LIBUNWIND := 1
+endif # Libunwind support
+endif # NO_LIBUNWIND
+
+ifndef NO_LIBUNWIND
+ CFLAGS += -DLIBUNWIND_SUPPORT
+ EXTLIBS += $(LIBUNWIND_LIBS)
+ CFLAGS += $(LIBUNWIND_CFLAGS)
+ LDFLAGS += $(LIBUNWIND_LDFLAGS)
+endif # NO_LIBUNWIND
+
+ifndef NO_LIBAUDIT
+ FLAGS_LIBAUDIT = $(CFLAGS) $(LDFLAGS) -laudit
+ ifneq ($(call try-cc,$(SOURCE_LIBAUDIT),$(FLAGS_LIBAUDIT),libaudit),y)
+ msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
+ NO_LIBAUDIT := 1
+ else
+ CFLAGS += -DLIBAUDIT_SUPPORT
+ EXTLIBS += -laudit
+ endif
+endif
+
+ifdef NO_NEWT
+ NO_SLANG=1
+endif
+
+ifndef NO_SLANG
+ FLAGS_SLANG=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) -I/usr/include/slang -lslang
+ ifneq ($(call try-cc,$(SOURCE_SLANG),$(FLAGS_SLANG),libslang),y)
+ msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
+ NO_SLANG := 1
+ else
+ # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
+ CFLAGS += -I/usr/include/slang
+ CFLAGS += -DSLANG_SUPPORT
+ EXTLIBS += -lslang
+ endif
+endif
+
+ifndef NO_GTK2
+ FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
+ ifneq ($(call try-cc,$(SOURCE_GTK2),$(FLAGS_GTK2),gtk2),y)
+ msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
+ NO_GTK2 := 1
+ else
+ ifeq ($(call try-cc,$(SOURCE_GTK2_INFOBAR),$(FLAGS_GTK2),-DHAVE_GTK_INFO_BAR),y)
+ CFLAGS += -DHAVE_GTK_INFO_BAR
+ endif
+ CFLAGS += -DGTK2_SUPPORT
+ CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
+ EXTLIBS += $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
+ endif
+endif
+
+grep-libs = $(filter -l%,$(1))
+strip-libs = $(filter-out -l%,$(1))
+
+ifdef NO_LIBPERL
+ CFLAGS += -DNO_LIBPERL
+else
+ PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
+ PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
+ PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
+ PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
+ FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
+
+ ifneq ($(call try-cc,$(SOURCE_PERL_EMBED),$(FLAGS_PERL_EMBED),perl),y)
+ CFLAGS += -DNO_LIBPERL
+ NO_LIBPERL := 1
+ else
+ LDFLAGS += $(PERL_EMBED_LDFLAGS)
+ EXTLIBS += $(PERL_EMBED_LIBADD)
+ endif
+endif
+
+disable-python = $(eval $(disable-python_code))
+define disable-python_code
+ CFLAGS += -DNO_LIBPYTHON
+ $(if $(1),$(warning No $(1) was found))
+ $(warning Python support will not be built)
+ NO_LIBPYTHON := 1
+endef
+
+override PYTHON := \
+ $(call get-executable-or-default,PYTHON,python)
+
+ifndef PYTHON
+ $(call disable-python,python interpreter)
+else
+
+ PYTHON_WORD := $(call shell-wordify,$(PYTHON))
+
+ ifdef NO_LIBPYTHON
+ $(call disable-python)
+ else
+
+ override PYTHON_CONFIG := \
+ $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config)
+
+ ifndef PYTHON_CONFIG
+ $(call disable-python,python-config tool)
+ else
+
+ PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
+
+ PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
+ PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
+ PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
+ PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
+ FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
+
+ ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED),python),y)
+ $(call disable-python,Python.h (for Python 2.x))
+ else
+
+ ifneq ($(call try-cc,$(SOURCE_PYTHON_VERSION),$(FLAGS_PYTHON_EMBED),python version),y)
+ $(warning Python 3 is not yet supported; please set)
+ $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
+ $(warning If you also have Python 2 installed, then)
+ $(warning try something like:)
+ $(warning $(and ,))
+ $(warning $(and ,) make PYTHON=python2)
+ $(warning $(and ,))
+ $(warning Otherwise, disable Python support entirely:)
+ $(warning $(and ,))
+ $(warning $(and ,) make NO_LIBPYTHON=1)
+ $(warning $(and ,))
+ $(error $(and ,))
+ else
+ LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
+ EXTLIBS += $(PYTHON_EMBED_LIBADD)
+ LANG_BINDINGS += $(obj-perf)python/perf.so
+ endif
+ endif
+ endif
+ endif
+endif
+
+ifdef NO_DEMANGLE
+ CFLAGS += -DNO_DEMANGLE
+else
+ ifdef HAVE_CPLUS_DEMANGLE
+ EXTLIBS += -liberty
+ CFLAGS += -DHAVE_CPLUS_DEMANGLE
+ else
+ FLAGS_BFD=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) -DPACKAGE='perf' -lbfd
+ has_bfd := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD),libbfd)
+ ifeq ($(has_bfd),y)
+ EXTLIBS += -lbfd
+ else
+ FLAGS_BFD_IBERTY=$(FLAGS_BFD) -liberty
+ has_bfd_iberty := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD_IBERTY),liberty)
+ ifeq ($(has_bfd_iberty),y)
+ EXTLIBS += -lbfd -liberty
+ else
+ FLAGS_BFD_IBERTY_Z=$(FLAGS_BFD_IBERTY) -lz
+ has_bfd_iberty_z := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD_IBERTY_Z),libz)
+ ifeq ($(has_bfd_iberty_z),y)
+ EXTLIBS += -lbfd -liberty -lz
+ else
+ FLAGS_CPLUS_DEMANGLE=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) -liberty
+ has_cplus_demangle := $(call try-cc,$(SOURCE_CPLUS_DEMANGLE),$(FLAGS_CPLUS_DEMANGLE),demangle)
+ ifeq ($(has_cplus_demangle),y)
+ EXTLIBS += -liberty
+ CFLAGS += -DHAVE_CPLUS_DEMANGLE
+ else
+ msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
+ CFLAGS += -DNO_DEMANGLE
+ endif
+ endif
+ endif
+ endif
+ endif
+endif
+
+ifndef NO_STRLCPY
+ ifeq ($(call try-cc,$(SOURCE_STRLCPY),,-DHAVE_STRLCPY),y)
+ CFLAGS += -DHAVE_STRLCPY
+ endif
+endif
+
+ifndef NO_ON_EXIT
+ ifeq ($(call try-cc,$(SOURCE_ON_EXIT),,-DHAVE_ON_EXIT),y)
+ CFLAGS += -DHAVE_ON_EXIT
+ endif
+endif
+
+ifndef NO_BACKTRACE
+ ifeq ($(call try-cc,$(SOURCE_BACKTRACE),,-DBACKTRACE_SUPPORT),y)
+ CFLAGS += -DBACKTRACE_SUPPORT
+ endif
+endif
+
+ifndef NO_LIBNUMA
+ FLAGS_LIBNUMA = $(CFLAGS) $(LDFLAGS) -lnuma
+ ifneq ($(call try-cc,$(SOURCE_LIBNUMA),$(FLAGS_LIBNUMA),libnuma),y)
+ msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numa-libs-devel or libnuma-dev);
+ NO_LIBNUMA := 1
+ else
+ CFLAGS += -DLIBNUMA_SUPPORT
+ EXTLIBS += -lnuma
+ endif
+endif
+
+# Among the variables below, these:
+# perfexecdir
+# template_dir
+# mandir
+# infodir
+# htmldir
+# ETC_PERFCONFIG (but not sysconfdir)
+# can be specified as a relative path some/where/else;
+# this is interpreted as relative to $(prefix) and "perf" at
+# runtime figures out where they are based on the path to the executable.
+# This can help installing the suite in a relocatable way.
+
+# Make the path relative to DESTDIR, not to prefix
+ifndef DESTDIR
+prefix = $(HOME)
+endif
+bindir_relative = bin
+bindir = $(prefix)/$(bindir_relative)
+mandir = share/man
+infodir = share/info
+perfexecdir = libexec/perf-core
+sharedir = $(prefix)/share
+template_dir = share/perf-core/templates
+htmldir = share/doc/perf-doc
+ifeq ($(prefix),/usr)
+sysconfdir = /etc
+ETC_PERFCONFIG = $(sysconfdir)/perfconfig
+else
+sysconfdir = $(prefix)/etc
+ETC_PERFCONFIG = etc/perfconfig
+endif
+lib = lib
+
+# Shell quote (do not use $(call) to accommodate ancient setups);
+ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
+DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
+bindir_SQ = $(subst ','\'',$(bindir))
+mandir_SQ = $(subst ','\'',$(mandir))
+infodir_SQ = $(subst ','\'',$(infodir))
+perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
+template_dir_SQ = $(subst ','\'',$(template_dir))
+htmldir_SQ = $(subst ','\'',$(htmldir))
+prefix_SQ = $(subst ','\'',$(prefix))
+sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
+
+ifneq ($(filter /%,$(firstword $(perfexecdir))),)
+perfexec_instdir = $(perfexecdir)
+else
+perfexec_instdir = $(prefix)/$(perfexecdir)
+endif
+perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
diff --git a/tools/perf/tests/attr/base-record b/tools/perf/tests/attr/base-record
index b4fc835..e9bd639 100644
--- a/tools/perf/tests/attr/base-record
+++ b/tools/perf/tests/attr/base-record
@@ -27,8 +27,8 @@ watermark=0
precise_ip=0
mmap_data=0
sample_id_all=1
-exclude_host=0
-exclude_guest=1
+exclude_host=0|1
+exclude_guest=0|1
exclude_callchain_kernel=0
exclude_callchain_user=0
wakeup_events=0
diff --git a/tools/perf/tests/attr/base-stat b/tools/perf/tests/attr/base-stat
index 748ee94..91cd48b 100644
--- a/tools/perf/tests/attr/base-stat
+++ b/tools/perf/tests/attr/base-stat
@@ -27,8 +27,8 @@ watermark=0
precise_ip=0
mmap_data=0
sample_id_all=0
-exclude_host=0
-exclude_guest=1
+exclude_host=0|1
+exclude_guest=0|1
exclude_callchain_kernel=0
exclude_callchain_user=0
wakeup_events=0
diff --git a/tools/perf/tests/attr/test-record-data b/tools/perf/tests/attr/test-record-data
index 6627c3e..716e143 100644
--- a/tools/perf/tests/attr/test-record-data
+++ b/tools/perf/tests/attr/test-record-data
@@ -4,5 +4,8 @@ args = -d kill >/dev/null 2>&1

[event:base-record]
sample_period=4000
-sample_type=271
+
+# sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_TIME |
+# PERF_SAMPLE_ADDR | PERF_SAMPLE_PERIOD | PERF_SAMPLE_DATA_SRC
+sample_type=33039
mmap_data=1
diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c
index 68daa28..aba0954 100644
--- a/tools/perf/tests/bp_signal.c
+++ b/tools/perf/tests/bp_signal.c
@@ -4,6 +4,12 @@
* (git://github.com/deater/perf_event_tests)
*/

+/*
+ * Powerpc needs __SANE_USERSPACE_TYPES__ before <linux/types.h> to select
+ * 'int-ll64.h' and avoid compile warnings when printing __u64 with %llu.
+ */
+#define __SANE_USERSPACE_TYPES__
+
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
diff --git a/tools/perf/tests/bp_signal_overflow.c b/tools/perf/tests/bp_signal_overflow.c
index fe7ed28..44ac821 100644
--- a/tools/perf/tests/bp_signal_overflow.c
+++ b/tools/perf/tests/bp_signal_overflow.c
@@ -3,6 +3,12 @@
* perf_event_tests (git://github.com/deater/perf_event_tests)
*/

+/*
+ * Powerpc needs __SANE_USERSPACE_TYPES__ before <linux/types.h> to select
+ * 'int-ll64.h' and avoid compile warnings when printing __u64 with %llu.
+ */
+#define __SANE_USERSPACE_TYPES__
+
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 0918ada..35b45f1466 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -70,7 +70,7 @@ static struct test {
.func = test__attr,
},
{
- .desc = "Test matching and linking mutliple hists",
+ .desc = "Test matching and linking multiple hists",
.func = test__hists_link,
},
{
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
new file mode 100644
index 0000000..c441a28
--- /dev/null
+++ b/tools/perf/tests/make
@@ -0,0 +1,138 @@
+PERF := .
+MK := Makefile
+
+# standard single make variable specified
+make_clean_all := clean all
+make_python_perf_so := python/perf.so
+make_debug := DEBUG=1
+make_no_libperl := NO_LIBPERL=1
+make_no_libpython := NO_LIBPYTHON=1
+make_no_scripts := NO_LIBPYTHON=1 NO_LIBPERL=1
+make_no_newt := NO_NEWT=1
+make_no_slang := NO_SLANG=1
+make_no_gtk2 := NO_GTK2=1
+make_no_ui := NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
+make_no_demangle := NO_DEMANGLE=1
+make_no_libelf := NO_LIBELF=1
+make_no_libunwind := NO_LIBUNWIND=1
+make_no_backtrace := NO_BACKTRACE=1
+make_no_libnuma := NO_LIBNUMA=1
+make_no_libaudit := NO_LIBAUDIT=1
+make_no_libbionic := NO_LIBBIONIC=1
+make_tags := tags
+make_cscope := cscope
+make_help := help
+make_doc := doc
+make_perf_o := perf.o
+make_util_map_o := util/map.o
+
+# all the NO_* variable combined
+make_minimal := NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1
+make_minimal += NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1
+make_minimal += NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1
+
+# $(run) contains all available tests
+run := make_pure
+run += make_clean_all
+run += make_python_perf_so
+run += make_debug
+run += make_no_libperl
+run += make_no_libpython
+run += make_no_scripts
+run += make_no_newt
+run += make_no_slang
+run += make_no_gtk2
+run += make_no_ui
+run += make_no_demangle
+run += make_no_libelf
+run += make_no_libunwind
+run += make_no_backtrace
+run += make_no_libnuma
+run += make_no_libaudit
+run += make_no_libbionic
+run += make_tags
+run += make_cscope
+run += make_help
+run += make_doc
+run += make_perf_o
+run += make_util_map_o
+run += make_minimal
+
+# $(run_O) contains same portion of $(run) tests with '_O' attached
+# to distinguish O=... tests
+run_O := $(addsuffix _O,$(run))
+
+# disable some tests for O=...
+run_O := $(filter-out make_python_perf_so_O,$(run_O))
+
+# define test for each compile as 'test_NAME' variable
+# with the test itself as a value
+test_make_tags = test -f tags
+test_make_cscope = test -f cscope.out
+
+test_make_tags_O := $(test_make_tags)
+test_make_cscope_O := $(test_make_cscope)
+
+test_ok := true
+test_make_help := $(test_ok)
+test_make_doc := $(test_ok)
+test_make_help_O := $(test_ok)
+test_make_doc_O := $(test_ok)
+
+test_make_python_perf_so := test -f $(PERF)/python/perf.so
+
+test_make_perf_o := test -f $(PERF)/perf.o
+test_make_util_map_o := test -f $(PERF)/util/map.o
+
+# Kbuild tests only
+#test_make_python_perf_so_O := test -f $$TMP/tools/perf/python/perf.so
+#test_make_perf_o_O := test -f $$TMP/tools/perf/perf.o
+#test_make_util_map_o_O := test -f $$TMP/tools/perf/util/map.o
+
+test_make_perf_o_O := true
+test_make_util_map_o_O := true
+
+test_default = test -x $(PERF)/perf
+test = $(if $(test_$1),$(test_$1),$(test_default))
+
+test_default_O = test -x $$TMP/perf
+test_O = $(if $(test_$1),$(test_$1),$(test_default_O))
+
+all:
+
+ifdef DEBUG
+d := $(info run $(run))
+d := $(info run_O $(run_O))
+endif
+
+MAKEFLAGS := --no-print-directory
+
+clean := @(cd $(PERF); make -s -f $(MK) clean >/dev/null)
+
+$(run):
+ $(call clean)
+ @cmd="cd $(PERF) && make -f $(MK) $($@)"; \
+ echo "- $@: $$cmd" && echo $$cmd > $@ && \
+ ( eval $$cmd ) >> $@ 2>&1; \
+ echo " test: $(call test,$@)"; \
+ $(call test,$@) && \
+ rm -f $@
+
+$(run_O):
+ $(call clean)
+ @TMP=$$(mktemp -d); \
+ cmd="cd $(PERF) && make -f $(MK) $($(patsubst %_O,%,$@)) O=$$TMP"; \
+ echo "- $@: $$cmd" && echo $$cmd > $@ && \
+ ( eval $$cmd ) >> $@ 2>&1 && \
+ echo " test: $(call test_O,$@)"; \
+ $(call test_O,$@) && \
+ rm -f $@ && \
+ rm -rf $$TMP
+
+all: $(run) $(run_O)
+ @echo OK
+
+out: $(run_O)
+ @echo OK
+
+.PHONY: all $(run) $(run_O) clean
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index d88a2d0..fc0bd38 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -25,7 +25,8 @@ struct hist_browser {
struct map_symbol *selection;
int print_seq;
bool show_dso;
- bool has_symbols;
+ float min_pcnt;
+ u64 nr_pcnt_entries;
};

extern void hist_browser__init_hpp(void);
@@ -309,6 +310,8 @@ static void ui_browser__warn_lost_events(struct ui_browser *browser)
"Or reduce the sampling frequency.");
}

+static void hist_browser__update_pcnt_entries(struct hist_browser *hb);
+
static int hist_browser__run(struct hist_browser *browser, const char *ev_name,
struct hist_browser_timer *hbt)
{
@@ -318,6 +321,8 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name,

browser->b.entries = &browser->hists->entries;
browser->b.nr_entries = browser->hists->nr_entries;
+ if (browser->min_pcnt)
+ browser->b.nr_entries = browser->nr_pcnt_entries;

hist_browser__refresh_dimensions(browser);
hists__browser_title(browser->hists, title, sizeof(title), ev_name);
@@ -330,9 +335,18 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name,
key = ui_browser__run(&browser->b, delay_secs);

switch (key) {
- case K_TIMER:
+ case K_TIMER: {
+ u64 nr_entries;
hbt->timer(hbt->arg);
- ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries);
+
+ if (browser->min_pcnt) {
+ hist_browser__update_pcnt_entries(browser);
+ nr_entries = browser->nr_pcnt_entries;
+ } else {
+ nr_entries = browser->hists->nr_entries;
+ }
+
+ ui_browser__update_nr_entries(&browser->b, nr_entries);

if (browser->hists->stats.nr_lost_warned !=
browser->hists->stats.nr_events[PERF_RECORD_LOST]) {
@@ -344,6 +358,7 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name,
hists__browser_title(browser->hists, title, sizeof(title), ev_name);
ui_browser__show_title(&browser->b, title);
continue;
+ }
case 'D': { /* Debug */
static int seq;
struct hist_entry *h = rb_entry(browser->b.top,
@@ -796,10 +811,15 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser)

for (nd = browser->top; nd; nd = rb_next(nd)) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+ float percent = h->stat.period * 100.0 /
+ hb->hists->stats.total_period;

if (h->filtered)
continue;

+ if (percent < hb->min_pcnt)
+ continue;
+
row += hist_browser__show_entry(hb, h, row);
if (row == browser->height)
break;
@@ -808,10 +828,18 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser)
return row;
}

-static struct rb_node *hists__filter_entries(struct rb_node *nd)
+static struct rb_node *hists__filter_entries(struct rb_node *nd,
+ struct hists *hists,
+ float min_pcnt)
{
while (nd != NULL) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+ float percent = h->stat.period * 100.0 /
+ hists->stats.total_period;
+
+ if (percent < min_pcnt)
+ return NULL;
+
if (!h->filtered)
return nd;

@@ -821,11 +849,16 @@ static struct rb_node *hists__filter_entries(struct rb_node *nd)
return NULL;
}

-static struct rb_node *hists__filter_prev_entries(struct rb_node *nd)
+static struct rb_node *hists__filter_prev_entries(struct rb_node *nd,
+ struct hists *hists,
+ float min_pcnt)
{
while (nd != NULL) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
- if (!h->filtered)
+ float percent = h->stat.period * 100.0 /
+ hists->stats.total_period;
+
+ if (!h->filtered && percent >= min_pcnt)
return nd;

nd = rb_prev(nd);
@@ -840,6 +873,9 @@ static void ui_browser__hists_seek(struct ui_browser *browser,
struct hist_entry *h;
struct rb_node *nd;
bool first = true;
+ struct hist_browser *hb;
+
+ hb = container_of(browser, struct hist_browser, b);

if (browser->nr_entries == 0)
return;
@@ -848,13 +884,15 @@ static void ui_browser__hists_seek(struct ui_browser *browser,

switch (whence) {
case SEEK_SET:
- nd = hists__filter_entries(rb_first(browser->entries));
+ nd = hists__filter_entries(rb_first(browser->entries),
+ hb->hists, hb->min_pcnt);
break;
case SEEK_CUR:
nd = browser->top;
goto do_offset;
case SEEK_END:
- nd = hists__filter_prev_entries(rb_last(browser->entries));
+ nd = hists__filter_prev_entries(rb_last(browser->entries),
+ hb->hists, hb->min_pcnt);
first = false;
break;
default:
@@ -897,7 +935,8 @@ do_offset:
break;
}
}
- nd = hists__filter_entries(rb_next(nd));
+ nd = hists__filter_entries(rb_next(nd), hb->hists,
+ hb->min_pcnt);
if (nd == NULL)
break;
--offset;
@@ -930,7 +969,8 @@ do_offset:
}
}

- nd = hists__filter_prev_entries(rb_prev(nd));
+ nd = hists__filter_prev_entries(rb_prev(nd), hb->hists,
+ hb->min_pcnt);
if (nd == NULL)
break;
++offset;
@@ -1099,14 +1139,17 @@ static int hist_browser__fprintf_entry(struct hist_browser *browser,

static int hist_browser__fprintf(struct hist_browser *browser, FILE *fp)
{
- struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries));
+ struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries),
+ browser->hists,
+ browser->min_pcnt);
int printed = 0;

while (nd) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);

printed += hist_browser__fprintf_entry(browser, h, fp);
- nd = hists__filter_entries(rb_next(nd));
+ nd = hists__filter_entries(rb_next(nd), browser->hists,
+ browser->min_pcnt);
}

return printed;
@@ -1155,10 +1198,6 @@ static struct hist_browser *hist_browser__new(struct hists *hists)
browser->b.refresh = hist_browser__refresh;
browser->b.seek = ui_browser__hists_seek;
browser->b.use_navkeypressed = true;
- if (sort__branch_mode == 1)
- browser->has_symbols = sort_sym_from.list.next != NULL;
- else
- browser->has_symbols = sort_sym.list.next != NULL;
}

return browser;
@@ -1329,11 +1368,25 @@ close_file_and_continue:
return ret;
}

+static void hist_browser__update_pcnt_entries(struct hist_browser *hb)
+{
+ u64 nr_entries = 0;
+ struct rb_node *nd = rb_first(&hb->hists->entries);
+
+ while (nd) {
+ nr_entries++;
+ nd = hists__filter_entries(rb_next(nd), hb->hists,
+ hb->min_pcnt);
+ }
+
+ hb->nr_pcnt_entries = nr_entries;
+}

static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
const char *helpline, const char *ev_name,
bool left_exits,
struct hist_browser_timer *hbt,
+ float min_pcnt,
struct perf_session_env *env)
{
struct hists *hists = &evsel->hists;
@@ -1350,6 +1403,11 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
if (browser == NULL)
return -1;

+ if (min_pcnt) {
+ browser->min_pcnt = min_pcnt;
+ hist_browser__update_pcnt_entries(browser);
+ }
+
fstack = pstack__new(2);
if (fstack == NULL)
goto out;
@@ -1386,7 +1444,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
*/
goto out_free_stack;
case 'a':
- if (!browser->has_symbols) {
+ if (!sort__has_sym) {
ui_browser__warning(&browser->b, delay_secs * 2,
"Annotation is only available for symbolic views, "
"include \"sym*\" in --sort to use it.");
@@ -1485,10 +1543,10 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
continue;
}

- if (!browser->has_symbols)
+ if (!sort__has_sym)
goto add_exit_option;

- if (sort__branch_mode == 1) {
+ if (sort__mode == SORT_MODE__BRANCH) {
bi = browser->he_selection->branch_info;
if (browser->selection != NULL &&
bi &&
@@ -1689,6 +1747,7 @@ struct perf_evsel_menu {
struct ui_browser b;
struct perf_evsel *selection;
bool lost_events, lost_events_warned;
+ float min_pcnt;
struct perf_session_env *env;
};

@@ -1782,6 +1841,7 @@ browse_hists:
ev_name = perf_evsel__name(pos);
key = perf_evsel__hists_browse(pos, nr_events, help,
ev_name, true, hbt,
+ menu->min_pcnt,
menu->env);
ui_browser__show_title(&menu->b, title);
switch (key) {
@@ -1843,6 +1903,7 @@ static bool filter_group_entries(struct ui_browser *self __maybe_unused,
static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
int nr_entries, const char *help,
struct hist_browser_timer *hbt,
+ float min_pcnt,
struct perf_session_env *env)
{
struct perf_evsel *pos;
@@ -1856,6 +1917,7 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
.nr_entries = nr_entries,
.priv = evlist,
},
+ .min_pcnt = min_pcnt,
.env = env,
};

@@ -1874,6 +1936,7 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,

int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
struct hist_browser_timer *hbt,
+ float min_pcnt,
struct perf_session_env *env)
{
int nr_entries = evlist->nr_entries;
@@ -1885,7 +1948,8 @@ single_entry:
const char *ev_name = perf_evsel__name(first);

return perf_evsel__hists_browse(first, nr_entries, help,
- ev_name, false, hbt, env);
+ ev_name, false, hbt, min_pcnt,
+ env);
}

if (symbol_conf.event_group) {
@@ -1901,5 +1965,5 @@ single_entry:
}

return __perf_evlist__tui_browse_hists(evlist, nr_entries, help,
- hbt, env);
+ hbt, min_pcnt, env);
}
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 6f259b3..9708dd5 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -124,7 +124,8 @@ void perf_gtk__init_hpp(void)
perf_gtk__hpp_color_overhead_guest_us;
}

-static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists)
+static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
+ float min_pcnt)
{
struct perf_hpp_fmt *fmt;
GType col_types[MAX_COLUMNS];
@@ -189,10 +190,15 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists)
for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
GtkTreeIter iter;
+ float percent = h->stat.period * 100.0 /
+ hists->stats.total_period;

if (h->filtered)
continue;

+ if (percent < min_pcnt)
+ continue;
+
gtk_list_store_append(store, &iter);

col_idx = 0;
@@ -222,7 +228,8 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists)

int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
const char *help,
- struct hist_browser_timer *hbt __maybe_unused)
+ struct hist_browser_timer *hbt __maybe_unused,
+ float min_pcnt)
{
struct perf_evsel *pos;
GtkWidget *vbox;
@@ -286,7 +293,7 @@ int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);

- perf_gtk__show_hists(scrolled_window, hists);
+ perf_gtk__show_hists(scrolled_window, hists, min_pcnt);

tab_label = gtk_label_new(evname);

diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index ff1f60c..ae7a754 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -334,7 +334,7 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
}

size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
- int max_cols, FILE *fp)
+ int max_cols, float min_pcnt, FILE *fp)
{
struct perf_hpp_fmt *fmt;
struct sort_entry *se;
@@ -440,10 +440,15 @@ size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
print_entries:
for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+ float percent = h->stat.period * 100.0 /
+ hists->stats.total_period;

if (h->filtered)
continue;

+ if (percent < min_pcnt)
+ continue;
+
ret += hist_entry__fprintf(h, max_cols, hists, fp);

if (max_rows && ++nr_rows >= max_rows)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index f7c7278..99b43dd 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -776,6 +776,8 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist,
if (pipe_output)
dup2(2, 1);

+ signal(SIGTERM, SIG_DFL);
+
close(child_ready_pipe[0]);
close(go_pipe[1]);
fcntl(go_pipe[0], F_SETFD, FD_CLOEXEC);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 07b1a3a..63b6f8c 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1514,7 +1514,7 @@ int perf_evsel__open_strerror(struct perf_evsel *evsel,
switch (err) {
case EPERM:
case EACCES:
- return scnprintf(msg, size, "%s",
+ return scnprintf(msg, size,
"You may not have permission to collect %sstats.\n"
"Consider tweaking /proc/sys/kernel/perf_event_paranoid:\n"
" -1 - Not paranoid at all\n"
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 326068a..738d3b8 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2391,7 +2391,6 @@ out_err_write:
}
lseek(fd, header->data_offset + header->data_size, SEEK_SET);

- header->frozen = 1;
return 0;
}

@@ -2871,7 +2870,6 @@ int perf_session__read_header(struct perf_session *session, int fd)
session->pevent))
goto out_delete_evlist;

- header->frozen = 1;
return 0;
out_errno:
return -errno;
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index c9fc55c..16a3e83 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -84,7 +84,6 @@ struct perf_session_env {
};

struct perf_header {
- int frozen;
bool needs_swap;
s64 attr_offset;
u64 data_offset;
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 6b32721..b11a6cf 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -70,9 +70,17 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
int symlen;
u16 len;

- if (h->ms.sym)
- hists__new_col_len(hists, HISTC_SYMBOL, h->ms.sym->namelen + 4);
- else {
+ /*
+ * +4 accounts for '[x] ' priv level info
+ * +2 accounts for 0x prefix on raw addresses
+ * +3 accounts for ' y ' symtab origin info
+ */
+ if (h->ms.sym) {
+ symlen = h->ms.sym->namelen + 4;
+ if (verbose)
+ symlen += BITS_PER_LONG / 4 + 2 + 3;
+ hists__new_col_len(hists, HISTC_SYMBOL, symlen);
+ } else {
symlen = unresolved_col_width + 4 + 2;
hists__new_col_len(hists, HISTC_SYMBOL, symlen);
hists__set_unres_dso_col_len(hists, HISTC_DSO);
@@ -91,12 +99,10 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
hists__new_col_len(hists, HISTC_PARENT, h->parent->namelen);

if (h->branch_info) {
- /*
- * +4 accounts for '[x] ' priv level info
- * +2 account of 0x prefix on raw addresses
- */
if (h->branch_info->from.sym) {
symlen = (int)h->branch_info->from.sym->namelen + 4;
+ if (verbose)
+ symlen += BITS_PER_LONG / 4 + 2 + 3;
hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);

symlen = dso__name_len(h->branch_info->from.map->dso);
@@ -109,6 +115,8 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)

if (h->branch_info->to.sym) {
symlen = (int)h->branch_info->to.sym->namelen + 4;
+ if (verbose)
+ symlen += BITS_PER_LONG / 4 + 2 + 3;
hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);

symlen = dso__name_len(h->branch_info->to.map->dso);
@@ -121,10 +129,6 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
}

if (h->mem_info) {
- /*
- * +4 accounts for '[x] ' priv level info
- * +2 account of 0x prefix on raw addresses
- */
if (h->mem_info->daddr.sym) {
symlen = (int)h->mem_info->daddr.sym->namelen + 4
+ unresolved_col_width + 2;
@@ -236,8 +240,7 @@ static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
return he->stat.period == 0;
}

-static void __hists__decay_entries(struct hists *hists, bool zap_user,
- bool zap_kernel, bool threaded)
+void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
{
struct rb_node *next = rb_first(&hists->entries);
struct hist_entry *n;
@@ -256,7 +259,7 @@ static void __hists__decay_entries(struct hists *hists, bool zap_user,
!n->used) {
rb_erase(&n->rb_node, &hists->entries);

- if (sort__need_collapse || threaded)
+ if (sort__need_collapse)
rb_erase(&n->rb_node_in, &hists->entries_collapsed);

hist_entry__free(n);
@@ -265,17 +268,6 @@ static void __hists__decay_entries(struct hists *hists, bool zap_user,
}
}

-void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
-{
- return __hists__decay_entries(hists, zap_user, zap_kernel, false);
-}
-
-void hists__decay_entries_threaded(struct hists *hists,
- bool zap_user, bool zap_kernel)
-{
- return __hists__decay_entries(hists, zap_user, zap_kernel, true);
-}
-
/*
* histogram, sorted on item, collects periods
*/
@@ -292,6 +284,20 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template)
he->ms.map->referenced = true;

if (he->branch_info) {
+ /*
+ * This branch info is (a part of) allocated from
+ * machine__resolve_bstack() and will be freed after
+ * adding new entries. So we need to save a copy.
+ */
+ he->branch_info = malloc(sizeof(*he->branch_info));
+ if (he->branch_info == NULL) {
+ free(he);
+ return NULL;
+ }
+
+ memcpy(he->branch_info, template->branch_info,
+ sizeof(*he->branch_info));
+
if (he->branch_info->from.map)
he->branch_info->from.map->referenced = true;
if (he->branch_info->to.map)
@@ -341,8 +347,6 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
struct hist_entry *he;
int cmp;

- pthread_mutex_lock(&hists->lock);
-
p = &hists->entries_in->rb_node;

while (*p != NULL) {
@@ -360,6 +364,12 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
if (!cmp) {
he_stat__add_period(&he->stat, period, weight);

+ /*
+ * This mem info was allocated from machine__resolve_mem
+ * and will not be used anymore.
+ */
+ free(entry->mem_info);
+
/* If the map of an existing hist_entry has
* become out-of-date due to an exec() or
* similar, update it. Otherwise we will
@@ -382,14 +392,12 @@ static struct hist_entry *add_hist_entry(struct hists *hists,

he = hist_entry__new(entry);
if (!he)
- goto out_unlock;
+ return NULL;

rb_link_node(&he->rb_node_in, parent, p);
rb_insert_color(&he->rb_node_in, hists->entries_in);
out:
hist_entry__add_cpumode_period(he, al->cpumode, period);
-out_unlock:
- pthread_mutex_unlock(&hists->lock);
return he;
}

@@ -589,13 +597,13 @@ static void hists__apply_filters(struct hists *hists, struct hist_entry *he)
hists__filter_entry_by_symbol(hists, he);
}

-static void __hists__collapse_resort(struct hists *hists, bool threaded)
+void hists__collapse_resort(struct hists *hists)
{
struct rb_root *root;
struct rb_node *next;
struct hist_entry *n;

- if (!sort__need_collapse && !threaded)
+ if (!sort__need_collapse)
return;

root = hists__get_rotate_entries_in(hists);
@@ -617,16 +625,6 @@ static void __hists__collapse_resort(struct hists *hists, bool threaded)
}
}

-void hists__collapse_resort(struct hists *hists)
-{
- return __hists__collapse_resort(hists, false);
-}
-
-void hists__collapse_resort_threaded(struct hists *hists)
-{
- return __hists__collapse_resort(hists, true);
-}
-
/*
* reverse the map, sort on period.
*/
@@ -713,7 +711,7 @@ static void __hists__insert_output_entry(struct rb_root *entries,
rb_insert_color(&he->rb_node, entries);
}

-static void __hists__output_resort(struct hists *hists, bool threaded)
+void hists__output_resort(struct hists *hists)
{
struct rb_root *root;
struct rb_node *next;
@@ -722,7 +720,7 @@ static void __hists__output_resort(struct hists *hists, bool threaded)

min_callchain_hits = hists->stats.total_period * (callchain_param.min_percent / 100);

- if (sort__need_collapse || threaded)
+ if (sort__need_collapse)
root = &hists->entries_collapsed;
else
root = hists->entries_in;
@@ -743,16 +741,6 @@ static void __hists__output_resort(struct hists *hists, bool threaded)
}
}

-void hists__output_resort(struct hists *hists)
-{
- return __hists__output_resort(hists, false);
-}
-
-void hists__output_resort_threaded(struct hists *hists)
-{
- return __hists__output_resort(hists, true);
-}
-
static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h,
enum hist_filter filter)
{
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 14c2fe2..2d3790f 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -43,12 +43,12 @@ enum hist_column {
HISTC_COMM,
HISTC_PARENT,
HISTC_CPU,
+ HISTC_SRCLINE,
HISTC_MISPREDICT,
HISTC_SYMBOL_FROM,
HISTC_SYMBOL_TO,
HISTC_DSO_FROM,
HISTC_DSO_TO,
- HISTC_SRCLINE,
HISTC_LOCAL_WEIGHT,
HISTC_GLOBAL_WEIGHT,
HISTC_MEM_DADDR_SYMBOL,
@@ -104,13 +104,9 @@ struct hist_entry *__hists__add_mem_entry(struct hists *self,
u64 weight);

void hists__output_resort(struct hists *self);
-void hists__output_resort_threaded(struct hists *hists);
void hists__collapse_resort(struct hists *self);
-void hists__collapse_resort_threaded(struct hists *hists);

void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
-void hists__decay_entries_threaded(struct hists *hists, bool zap_user,
- bool zap_kernel);
void hists__output_recalc_col_len(struct hists *hists, int max_rows);

void hists__inc_nr_entries(struct hists *hists, struct hist_entry *h);
@@ -119,7 +115,7 @@ void events_stats__inc(struct events_stats *stats, u32 type);
size_t events_stats__fprintf(struct events_stats *stats, FILE *fp);

size_t hists__fprintf(struct hists *self, bool show_header, int max_rows,
- int max_cols, FILE *fp);
+ int max_cols, float min_pcnt, FILE *fp);

int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
int hist_entry__annotate(struct hist_entry *self, size_t privsize);
@@ -199,6 +195,7 @@ int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,

int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
struct hist_browser_timer *hbt,
+ float min_pcnt,
struct perf_session_env *env);
int script_browse(const char *script_opt);
#else
@@ -206,6 +203,7 @@ static inline
int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
const char *help __maybe_unused,
struct hist_browser_timer *hbt __maybe_unused,
+ float min_pcnt __maybe_unused,
struct perf_session_env *env __maybe_unused)
{
return 0;
@@ -233,12 +231,14 @@ static inline int script_browse(const char *script_opt __maybe_unused)

#ifdef GTK2_SUPPORT
int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
- struct hist_browser_timer *hbt __maybe_unused);
+ struct hist_browser_timer *hbt __maybe_unused,
+ float min_pcnt);
#else
static inline
int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist __maybe_unused,
const char *help __maybe_unused,
- struct hist_browser_timer *hbt __maybe_unused)
+ struct hist_browser_timer *hbt __maybe_unused,
+ float min_pcnt __maybe_unused)
{
return 0;
}
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 6fcb9de..8bcdf9e 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -21,6 +21,7 @@ const char *map_type__name[MAP__NR_TYPES] = {
static inline int is_anon_memory(const char *filename)
{
return !strcmp(filename, "//anon") ||
+ !strcmp(filename, "/dev/zero (deleted)") ||
!strcmp(filename, "/anon_hugepage (deleted)");
}

diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 6b51d47..f3b235e 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -37,7 +37,6 @@ struct perf_session {
int fd;
bool fd_pipe;
bool repipe;
- int cwdlen;
char *cwd;
struct ordered_samples ordered_samples;
char filename[1];
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index 6b0ed32..58ea5ca 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -18,8 +18,9 @@ class install_lib(_install_lib):
self.build_dir = build_lib


-cflags = ['-fno-strict-aliasing', '-Wno-write-strings']
-cflags += getenv('CFLAGS', '').split()
+cflags = getenv('CFLAGS', '').split()
+# switch off several checks (need to be at the end of cflags list)
+cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter' ]

build_lib = getenv('PYTHON_EXTBUILD_LIB')
build_tmp = getenv('PYTHON_EXTBUILD_TMP')
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 5f52d49..313a5a7 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1,5 +1,6 @@
#include "sort.h"
#include "hist.h"
+#include "symbol.h"

regex_t parent_regex;
const char default_parent_pattern[] = "^sys_|^do_page_fault";
@@ -9,7 +10,7 @@ const char *sort_order = default_sort_order;
int sort__need_collapse = 0;
int sort__has_parent = 0;
int sort__has_sym = 0;
-int sort__branch_mode = -1; /* -1 = means not set */
+enum sort_mode sort__mode = SORT_MODE__NORMAL;

enum sort_type sort__first_dimension;

@@ -194,7 +195,7 @@ static int _hist_entry__sym_snprintf(struct map *map, struct symbol *sym,
if (verbose) {
char o = map ? dso__symtab_origin(map->dso) : '!';
ret += repsep_snprintf(bf, size, "%-#*llx %c ",
- BITS_PER_LONG / 4, ip, o);
+ BITS_PER_LONG / 4 + 2, ip, o);
}

ret += repsep_snprintf(bf + ret, size - ret, "[%c] ", level);
@@ -871,14 +872,6 @@ static struct sort_dimension common_sort_dimensions[] = {
DIM(SORT_PARENT, "parent", sort_parent),
DIM(SORT_CPU, "cpu", sort_cpu),
DIM(SORT_SRCLINE, "srcline", sort_srcline),
- DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
- DIM(SORT_GLOBAL_WEIGHT, "weight", sort_global_weight),
- DIM(SORT_MEM_DADDR_SYMBOL, "symbol_daddr", sort_mem_daddr_sym),
- DIM(SORT_MEM_DADDR_DSO, "dso_daddr", sort_mem_daddr_dso),
- DIM(SORT_MEM_LOCKED, "locked", sort_mem_locked),
- DIM(SORT_MEM_TLB, "tlb", sort_mem_tlb),
- DIM(SORT_MEM_LVL, "mem", sort_mem_lvl),
- DIM(SORT_MEM_SNOOP, "snoop", sort_mem_snoop),
};

#undef DIM
@@ -895,6 +888,36 @@ static struct sort_dimension bstack_sort_dimensions[] = {

#undef DIM

+#define DIM(d, n, func) [d - __SORT_MEMORY_MODE] = { .name = n, .entry = &(func) }
+
+static struct sort_dimension memory_sort_dimensions[] = {
+ DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
+ DIM(SORT_GLOBAL_WEIGHT, "weight", sort_global_weight),
+ DIM(SORT_MEM_DADDR_SYMBOL, "symbol_daddr", sort_mem_daddr_sym),
+ DIM(SORT_MEM_DADDR_DSO, "dso_daddr", sort_mem_daddr_dso),
+ DIM(SORT_MEM_LOCKED, "locked", sort_mem_locked),
+ DIM(SORT_MEM_TLB, "tlb", sort_mem_tlb),
+ DIM(SORT_MEM_LVL, "mem", sort_mem_lvl),
+ DIM(SORT_MEM_SNOOP, "snoop", sort_mem_snoop),
+};
+
+#undef DIM
+
+static void __sort_dimension__add(struct sort_dimension *sd, enum sort_type idx)
+{
+ if (sd->taken)
+ return;
+
+ if (sd->entry->se_collapse)
+ sort__need_collapse = 1;
+
+ if (list_empty(&hist_entry__sort_list))
+ sort__first_dimension = idx;
+
+ list_add_tail(&sd->entry->list, &hist_entry__sort_list);
+ sd->taken = 1;
+}
+
int sort_dimension__add(const char *tok)
{
unsigned int i;
@@ -915,25 +938,11 @@ int sort_dimension__add(const char *tok)
return -EINVAL;
}
sort__has_parent = 1;
- } else if (sd->entry == &sort_sym ||
- sd->entry == &sort_sym_from ||
- sd->entry == &sort_sym_to ||
- sd->entry == &sort_mem_daddr_sym) {
+ } else if (sd->entry == &sort_sym) {
sort__has_sym = 1;
}

- if (sd->taken)
- return 0;
-
- if (sd->entry->se_collapse)
- sort__need_collapse = 1;
-
- if (list_empty(&hist_entry__sort_list))
- sort__first_dimension = i;
-
- list_add_tail(&sd->entry->list, &hist_entry__sort_list);
- sd->taken = 1;
-
+ __sort_dimension__add(sd, i);
return 0;
}

@@ -943,24 +952,29 @@ int sort_dimension__add(const char *tok)
if (strncasecmp(tok, sd->name, strlen(tok)))
continue;

- if (sort__branch_mode != 1)
+ if (sort__mode != SORT_MODE__BRANCH)
return -EINVAL;

if (sd->entry == &sort_sym_from || sd->entry == &sort_sym_to)
sort__has_sym = 1;

- if (sd->taken)
- return 0;
+ __sort_dimension__add(sd, i + __SORT_BRANCH_STACK);
+ return 0;
+ }

- if (sd->entry->se_collapse)
- sort__need_collapse = 1;
+ for (i = 0; i < ARRAY_SIZE(memory_sort_dimensions); i++) {
+ struct sort_dimension *sd = &memory_sort_dimensions[i];

- if (list_empty(&hist_entry__sort_list))
- sort__first_dimension = i + __SORT_BRANCH_STACK;
+ if (strncasecmp(tok, sd->name, strlen(tok)))
+ continue;

- list_add_tail(&sd->entry->list, &hist_entry__sort_list);
- sd->taken = 1;
+ if (sort__mode != SORT_MODE__MEMORY)
+ return -EINVAL;
+
+ if (sd->entry == &sort_mem_daddr_sym)
+ sort__has_sym = 1;

+ __sort_dimension__add(sd, i + __SORT_MEMORY_MODE);
return 0;
}

@@ -993,8 +1007,9 @@ int setup_sorting(void)
return ret;
}

-void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list,
- const char *list_name, FILE *fp)
+static void sort_entry__setup_elide(struct sort_entry *self,
+ struct strlist *list,
+ const char *list_name, FILE *fp)
{
if (list && strlist__nr_entries(list) == 1) {
if (fp != NULL)
@@ -1003,3 +1018,42 @@ void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list,
self->elide = true;
}
}
+
+void sort__setup_elide(FILE *output)
+{
+ sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
+ "dso", output);
+ sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list,
+ "comm", output);
+ sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list,
+ "symbol", output);
+
+ if (sort__mode == SORT_MODE__BRANCH) {
+ sort_entry__setup_elide(&sort_dso_from,
+ symbol_conf.dso_from_list,
+ "dso_from", output);
+ sort_entry__setup_elide(&sort_dso_to,
+ symbol_conf.dso_to_list,
+ "dso_to", output);
+ sort_entry__setup_elide(&sort_sym_from,
+ symbol_conf.sym_from_list,
+ "sym_from", output);
+ sort_entry__setup_elide(&sort_sym_to,
+ symbol_conf.sym_to_list,
+ "sym_to", output);
+ } else if (sort__mode == SORT_MODE__MEMORY) {
+ sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
+ "symbol_daddr", output);
+ sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
+ "dso_daddr", output);
+ sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
+ "mem", output);
+ sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
+ "local_weight", output);
+ sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
+ "tlb", output);
+ sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
+ "snoop", output);
+ }
+
+}
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index f24bdf6..45ac84c 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -32,7 +32,7 @@ extern const char default_sort_order[];
extern int sort__need_collapse;
extern int sort__has_parent;
extern int sort__has_sym;
-extern int sort__branch_mode;
+extern enum sort_mode sort__mode;
extern struct sort_entry sort_comm;
extern struct sort_entry sort_dso;
extern struct sort_entry sort_sym;
@@ -117,12 +117,18 @@ static inline struct hist_entry *hist_entry__next_pair(struct hist_entry *he)
return NULL;
}

-static inline void hist_entry__add_pair(struct hist_entry *he,
- struct hist_entry *pair)
+static inline void hist_entry__add_pair(struct hist_entry *pair,
+ struct hist_entry *he)
{
- list_add_tail(&he->pairs.head, &pair->pairs.node);
+ list_add_tail(&pair->pairs.node, &he->pairs.head);
}

+enum sort_mode {
+ SORT_MODE__NORMAL,
+ SORT_MODE__BRANCH,
+ SORT_MODE__MEMORY,
+};
+
enum sort_type {
/* common sort keys */
SORT_PID,
@@ -132,14 +138,6 @@ enum sort_type {
SORT_PARENT,
SORT_CPU,
SORT_SRCLINE,
- SORT_LOCAL_WEIGHT,
- SORT_GLOBAL_WEIGHT,
- SORT_MEM_DADDR_SYMBOL,
- SORT_MEM_DADDR_DSO,
- SORT_MEM_LOCKED,
- SORT_MEM_TLB,
- SORT_MEM_LVL,
- SORT_MEM_SNOOP,

/* branch stack specific sort keys */
__SORT_BRANCH_STACK,
@@ -148,6 +146,17 @@ enum sort_type {
SORT_SYM_FROM,
SORT_SYM_TO,
SORT_MISPREDICT,
+
+ /* memory mode specific sort keys */
+ __SORT_MEMORY_MODE,
+ SORT_LOCAL_WEIGHT = __SORT_MEMORY_MODE,
+ SORT_GLOBAL_WEIGHT,
+ SORT_MEM_DADDR_SYMBOL,
+ SORT_MEM_DADDR_DSO,
+ SORT_MEM_LOCKED,
+ SORT_MEM_TLB,
+ SORT_MEM_LVL,
+ SORT_MEM_SNOOP,
};

/*
@@ -172,7 +181,6 @@ extern struct list_head hist_entry__sort_list;

int setup_sorting(void);
extern int sort_dimension__add(const char *);
-void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list,
- const char *list_name, FILE *fp);
+void sort__setup_elide(FILE *fp);

#endif /* __PERF_SORT_H */
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 2374212..7c59c28 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -37,7 +37,7 @@ double stddev_stats(struct stats *stats)
{
double variance, variance_mean;

- if (!stats->n)
+ if (stats->n < 2)
return 0.0;

variance = stats->M2 / (stats->n - 1);
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 632e40e..40399cb 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -14,6 +14,7 @@ struct thread *thread__new(pid_t pid)
if (self != NULL) {
map_groups__init(&self->mg);
self->pid = pid;
+ self->ppid = -1;
self->comm = malloc(32);
if (self->comm)
snprintf(self->comm, 32, ":%d", self->pid);
@@ -82,5 +83,8 @@ int thread__fork(struct thread *self, struct thread *parent)
for (i = 0; i < MAP__NR_TYPES; ++i)
if (map_groups__clone(&self->mg, &parent->mg, i) < 0)
return -ENOMEM;
+
+ self->ppid = parent->pid;
+
return 0;
}
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 5ad2664..eeb7ac6 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -13,6 +13,7 @@ struct thread {
};
struct map_groups mg;
pid_t pid;
+ pid_t ppid;
char shortname[3];
bool comm_set;
char *comm;
diff --git a/tools/perf/util/top.c b/tools/perf/util/top.c
index 54d37a4..f857b51 100644
--- a/tools/perf/util/top.c
+++ b/tools/perf/util/top.c
@@ -23,20 +23,31 @@

size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
{
- float samples_per_sec = top->samples / top->delay_secs;
- float ksamples_per_sec = top->kernel_samples / top->delay_secs;
- float esamples_percent = (100.0 * top->exact_samples) / top->samples;
+ float samples_per_sec;
+ float ksamples_per_sec;
+ float esamples_percent;
struct perf_record_opts *opts = &top->record_opts;
struct perf_target *target = &opts->target;
size_t ret = 0;

+ if (top->samples) {
+ samples_per_sec = top->samples / top->delay_secs;
+ ksamples_per_sec = top->kernel_samples / top->delay_secs;
+ esamples_percent = (100.0 * top->exact_samples) / top->samples;
+ } else {
+ samples_per_sec = ksamples_per_sec = esamples_percent = 0.0;
+ }
+
if (!perf_guest) {
+ float ksamples_percent = 0.0;
+
+ if (samples_per_sec)
+ ksamples_percent = (100.0 * ksamples_per_sec) /
+ samples_per_sec;
ret = SNPRINTF(bf, size,
" PerfTop:%8.0f irqs/sec kernel:%4.1f%%"
" exact: %4.1f%% [", samples_per_sec,
- 100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) /
- samples_per_sec)),
- esamples_percent);
+ ksamples_percent, esamples_percent);
} else {
float us_samples_per_sec = top->us_samples / top->delay_secs;
float guest_kernel_samples_per_sec = top->guest_kernel_samples / top->delay_secs;
diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
index 7ebf357..df46be9 100644
--- a/tools/perf/util/top.h
+++ b/tools/perf/util/top.h
@@ -26,7 +26,6 @@ struct perf_top {
int print_entries, count_filter, delay_secs;
bool hide_kernel_symbols, hide_user_symbols, zero;
bool use_tui, use_stdio;
- bool sort_has_symbols;
bool kptr_restrict_warned;
bool vmlinux_warned;
bool dump_symtab;
@@ -37,6 +36,7 @@ struct perf_top {
int realtime_prio;
int sym_pcnt_filter;
const char *sym_filter;
+ float min_percent;
};

size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size);
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index a45710b..7a484c9 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -221,8 +221,8 @@ extern unsigned char sane_ctype[256];
#define isalpha(x) sane_istest(x,GIT_ALPHA)
#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
#define isprint(x) sane_istest(x,GIT_PRINT)
-#define islower(x) (sane_istest(x,GIT_ALPHA) && sane_istest(x,0x20))
-#define isupper(x) (sane_istest(x,GIT_ALPHA) && !sane_istest(x,0x20))
+#define islower(x) (sane_istest(x,GIT_ALPHA) && (x & 0x20))
+#define isupper(x) (sane_istest(x,GIT_ALPHA) && !(x & 0x20))
#define tolower(x) sane_case((unsigned char)(x), 0x20)
#define toupper(x) sane_case((unsigned char)(x), 0)


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