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Date: Fri, 18 Mar 2011 14:47:17 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Frédéric Weisbecker <fweisbec@...il.com>,
Steven Rostedt <rostedt@...dmis.org>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] perf fixes/updates
Linus,
Please pull the latest perf-fixes-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perf-fixes-for-linus
It includes the v2.6.39 Oprofile bits, some late tools/perf infrastructure
updates and fixes.
Thanks,
Ingo
------------------>
Anton Blanchard (1):
perf, powerpc: Handle events that raise an exception without overflowing
Arnaldo Carvalho de Melo (5):
perf top: Remove redundant perf_top->sym_counter
perf top: Remove redundant syme->origin field
perf symbols: Rename dso->origin to dso->symtab_type
perf symbol: Move sym_entry->skip to symbol->ignore
perf evlist: New command to list the names of events present in a perf.data file
David Ahern (6):
perf script: Change process_event prototype
perf tracing: Remove print_graph_cpu and print_graph_proc from trace-event-parse
perf script: Move printing of 'common' data from print_event and rename
perf script: Support custom field selection for output
perf script: Add support for dumping symbols
perf script: Add support for H/W and S/W events
David Rientjes (1):
trace, documentation: Fix branch profiling location in debugfs
Frederic Weisbecker (3):
perf stat: Provide support for filters
perf: Fix the software events state check
perf: Handle stopped state with tracepoints
Heinz Graalfs (4):
oprofile: Introduce new oprofile sample add function (oprofile_add_ext_hw_sample)
oprofile, s390: Add support for hardware based sampling on System z processors
oprofile, s390: Enhance OProfile to support System zs hardware sampling feature
oprofile, s390: Remove hwsampler_files.c and merge it into init.c
Ingo Molnar (1):
trace, filters: Initialize the match variable in process_ops() properly
Josh Hunt (1):
perf tools: Version incorrect with some versions of grep
Lin Ming (2):
perf, x86: Clean up SandyBridge PEBS events
perf, x86: Use INTEL_*_CONSTRAINT() for all PEBS event constraints
Marcin Slusarz (1):
perf lock: Fix sorting by wait_min
Peter Zijlstra (1):
perf: Fix tear-down of inherited group events
Richard Kennedy (1):
perf: Reorder & optimize perf_event_context to remove alignment padding on 64 bit builds
Robert Richter (3):
oprofile, s390: Rework hwsampler implementation
oprofile, s390: Fix section mismatch of function hws_cpu_callback()
oprofile, s390: Cleanups
arch/powerpc/include/asm/reg.h | 1 +
arch/powerpc/kernel/perf_event.c | 24 +-
arch/s390/oprofile/Makefile | 2 +-
arch/s390/oprofile/hwsampler.c | 1256 ++++++++++++++++++++
arch/s390/oprofile/hwsampler.h | 113 ++
arch/s390/oprofile/init.c | 165 +++-
arch/x86/kernel/cpu/perf_event.c | 2 -
arch/x86/kernel/cpu/perf_event_intel_ds.c | 112 +-
drivers/oprofile/cpu_buffer.c | 24 +-
drivers/oprofile/timer_int.c | 4 +-
include/linux/oprofile.h | 7 +
include/linux/perf_event.h | 2 +-
kernel/perf_event.c | 17 +-
kernel/trace/Kconfig | 4 +-
kernel/trace/trace_events_filter.c | 2 +-
tools/perf/Documentation/perf-evlist.txt | 26 +
tools/perf/Documentation/perf-script.txt | 22 +
tools/perf/Makefile | 1 +
tools/perf/builtin-evlist.c | 54 +
tools/perf/builtin-lock.c | 13 +-
tools/perf/builtin-script.c | 300 +++++-
tools/perf/builtin-stat.c | 8 +
tools/perf/builtin-top.c | 20 +-
tools/perf/builtin.h | 1 +
tools/perf/command-list.txt | 1 +
tools/perf/perf.c | 1 +
tools/perf/util/PERF-VERSION-GEN | 8 +-
tools/perf/util/annotate.c | 2 +-
tools/perf/util/parse-events.c | 22 +
tools/perf/util/parse-events.h | 1 +
.../perf/util/scripting-engines/trace-event-perl.c | 11 +-
.../util/scripting-engines/trace-event-python.c | 11 +-
tools/perf/util/session.c | 61 +
tools/perf/util/session.h | 4 +
tools/perf/util/symbol.c | 64 +-
tools/perf/util/symbol.h | 31 +-
tools/perf/util/top.c | 6 +-
tools/perf/util/top.h | 4 +-
tools/perf/util/trace-event-parse.c | 110 +--
tools/perf/util/trace-event-scripting.c | 9 +-
tools/perf/util/trace-event.h | 10 +-
41 files changed, 2240 insertions(+), 296 deletions(-)
create mode 100644 arch/s390/oprofile/hwsampler.c
create mode 100644 arch/s390/oprofile/hwsampler.h
create mode 100644 tools/perf/Documentation/perf-evlist.txt
create mode 100644 tools/perf/builtin-evlist.c
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 125fc1a..7626fa7 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -880,6 +880,7 @@
#define PV_970 0x0039
#define PV_POWER5 0x003A
#define PV_POWER5p 0x003B
+#define PV_POWER7 0x003F
#define PV_970FX 0x003C
#define PV_630 0x0040
#define PV_630p 0x0041
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index ab6f6be..97e0ae4 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -1269,6 +1269,28 @@ unsigned long perf_instruction_pointer(struct pt_regs *regs)
return ip;
}
+static bool pmc_overflow(unsigned long val)
+{
+ if ((int)val < 0)
+ return true;
+
+ /*
+ * Events on POWER7 can roll back if a speculative event doesn't
+ * eventually complete. Unfortunately in some rare cases they will
+ * raise a performance monitor exception. We need to catch this to
+ * ensure we reset the PMC. In all cases the PMC will be 256 or less
+ * cycles from overflow.
+ *
+ * We only do this if the first pass fails to find any overflowing
+ * PMCs because a user might set a period of less than 256 and we
+ * don't want to mistakenly reset them.
+ */
+ if (__is_processor(PV_POWER7) && ((0x80000000 - val) <= 256))
+ return true;
+
+ return false;
+}
+
/*
* Performance monitor interrupt stuff
*/
@@ -1316,7 +1338,7 @@ static void perf_event_interrupt(struct pt_regs *regs)
if (is_limited_pmc(i + 1))
continue;
val = read_pmc(i + 1);
- if ((int)val < 0)
+ if (pmc_overflow(val))
write_pmc(i + 1, 0);
}
}
diff --git a/arch/s390/oprofile/Makefile b/arch/s390/oprofile/Makefile
index 537b2d8..d698cdd 100644
--- a/arch/s390/oprofile/Makefile
+++ b/arch/s390/oprofile/Makefile
@@ -6,4 +6,4 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
oprofilefs.o oprofile_stats.o \
timer_int.o )
-oprofile-y := $(DRIVER_OBJS) init.o backtrace.o
+oprofile-y := $(DRIVER_OBJS) init.o backtrace.o hwsampler.o
diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c
new file mode 100644
index 0000000..3d48f4d
--- /dev/null
+++ b/arch/s390/oprofile/hwsampler.c
@@ -0,0 +1,1256 @@
+/**
+ * arch/s390/oprofile/hwsampler.c
+ *
+ * Copyright IBM Corp. 2010
+ * Author: Heinz Graalfs <graalfs@...ibm.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/smp.h>
+#include <linux/errno.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+#include <linux/cpu.h>
+#include <linux/semaphore.h>
+#include <linux/oom.h>
+#include <linux/oprofile.h>
+
+#include <asm/lowcore.h>
+#include <asm/s390_ext.h>
+
+#include "hwsampler.h"
+
+#define MAX_NUM_SDB 511
+#define MIN_NUM_SDB 1
+
+#define ALERT_REQ_MASK 0x4000000000000000ul
+#define BUFFER_FULL_MASK 0x8000000000000000ul
+
+#define EI_IEA (1 << 31) /* invalid entry address */
+#define EI_ISE (1 << 30) /* incorrect SDBT entry */
+#define EI_PRA (1 << 29) /* program request alert */
+#define EI_SACA (1 << 23) /* sampler authorization change alert */
+#define EI_LSDA (1 << 22) /* loss of sample data alert */
+
+DECLARE_PER_CPU(struct hws_cpu_buffer, sampler_cpu_buffer);
+
+struct hws_execute_parms {
+ void *buffer;
+ signed int rc;
+};
+
+DEFINE_PER_CPU(struct hws_cpu_buffer, sampler_cpu_buffer);
+EXPORT_PER_CPU_SYMBOL(sampler_cpu_buffer);
+
+static DEFINE_MUTEX(hws_sem);
+static DEFINE_MUTEX(hws_sem_oom);
+
+static unsigned char hws_flush_all;
+static unsigned int hws_oom;
+static struct workqueue_struct *hws_wq;
+
+static unsigned int hws_state;
+enum {
+ HWS_INIT = 1,
+ HWS_DEALLOCATED,
+ HWS_STOPPED,
+ HWS_STARTED,
+ HWS_STOPPING };
+
+/* set to 1 if called by kernel during memory allocation */
+static unsigned char oom_killer_was_active;
+/* size of SDBT and SDB as of allocate API */
+static unsigned long num_sdbt = 100;
+static unsigned long num_sdb = 511;
+/* sampling interval (machine cycles) */
+static unsigned long interval;
+
+static unsigned long min_sampler_rate;
+static unsigned long max_sampler_rate;
+
+static int ssctl(void *buffer)
+{
+ int cc;
+
+ /* set in order to detect a program check */
+ cc = 1;
+
+ asm volatile(
+ "0: .insn s,0xB2870000,0(%1)\n"
+ "1: ipm %0\n"
+ " srl %0,28\n"
+ "2:\n"
+ EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
+ : "+d" (cc), "+a" (buffer)
+ : "m" (*((struct hws_ssctl_request_block *)buffer))
+ : "cc", "memory");
+
+ return cc ? -EINVAL : 0 ;
+}
+
+static int qsi(void *buffer)
+{
+ int cc;
+ cc = 1;
+
+ asm volatile(
+ "0: .insn s,0xB2860000,0(%1)\n"
+ "1: lhi %0,0\n"
+ "2:\n"
+ EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
+ : "=d" (cc), "+a" (buffer)
+ : "m" (*((struct hws_qsi_info_block *)buffer))
+ : "cc", "memory");
+
+ return cc ? -EINVAL : 0;
+}
+
+static void execute_qsi(void *parms)
+{
+ struct hws_execute_parms *ep = parms;
+
+ ep->rc = qsi(ep->buffer);
+}
+
+static void execute_ssctl(void *parms)
+{
+ struct hws_execute_parms *ep = parms;
+
+ ep->rc = ssctl(ep->buffer);
+}
+
+static int smp_ctl_ssctl_stop(int cpu)
+{
+ int rc;
+ struct hws_execute_parms ep;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ cb->ssctl.es = 0;
+ cb->ssctl.cs = 0;
+
+ ep.buffer = &cb->ssctl;
+ smp_call_function_single(cpu, execute_ssctl, &ep, 1);
+ rc = ep.rc;
+ if (rc) {
+ printk(KERN_ERR "hwsampler: CPU %d CPUMF SSCTL failed.\n", cpu);
+ dump_stack();
+ }
+
+ ep.buffer = &cb->qsi;
+ smp_call_function_single(cpu, execute_qsi, &ep, 1);
+
+ if (cb->qsi.es || cb->qsi.cs) {
+ printk(KERN_EMERG "CPUMF sampling did not stop properly.\n");
+ dump_stack();
+ }
+
+ return rc;
+}
+
+static int smp_ctl_ssctl_deactivate(int cpu)
+{
+ int rc;
+ struct hws_execute_parms ep;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ cb->ssctl.es = 1;
+ cb->ssctl.cs = 0;
+
+ ep.buffer = &cb->ssctl;
+ smp_call_function_single(cpu, execute_ssctl, &ep, 1);
+ rc = ep.rc;
+ if (rc)
+ printk(KERN_ERR "hwsampler: CPU %d CPUMF SSCTL failed.\n", cpu);
+
+ ep.buffer = &cb->qsi;
+ smp_call_function_single(cpu, execute_qsi, &ep, 1);
+
+ if (cb->qsi.cs)
+ printk(KERN_EMERG "CPUMF sampling was not set inactive.\n");
+
+ return rc;
+}
+
+static int smp_ctl_ssctl_enable_activate(int cpu, unsigned long interval)
+{
+ int rc;
+ struct hws_execute_parms ep;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ cb->ssctl.h = 1;
+ cb->ssctl.tear = cb->first_sdbt;
+ cb->ssctl.dear = *(unsigned long *) cb->first_sdbt;
+ cb->ssctl.interval = interval;
+ cb->ssctl.es = 1;
+ cb->ssctl.cs = 1;
+
+ ep.buffer = &cb->ssctl;
+ smp_call_function_single(cpu, execute_ssctl, &ep, 1);
+ rc = ep.rc;
+ if (rc)
+ printk(KERN_ERR "hwsampler: CPU %d CPUMF SSCTL failed.\n", cpu);
+
+ ep.buffer = &cb->qsi;
+ smp_call_function_single(cpu, execute_qsi, &ep, 1);
+ if (ep.rc)
+ printk(KERN_ERR "hwsampler: CPU %d CPUMF QSI failed.\n", cpu);
+
+ return rc;
+}
+
+static int smp_ctl_qsi(int cpu)
+{
+ struct hws_execute_parms ep;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ ep.buffer = &cb->qsi;
+ smp_call_function_single(cpu, execute_qsi, &ep, 1);
+
+ return ep.rc;
+}
+
+static inline unsigned long *trailer_entry_ptr(unsigned long v)
+{
+ void *ret;
+
+ ret = (void *)v;
+ ret += PAGE_SIZE;
+ ret -= sizeof(struct hws_trailer_entry);
+
+ return (unsigned long *) ret;
+}
+
+/* prototypes for external interrupt handler and worker */
+static void hws_ext_handler(unsigned int ext_int_code,
+ unsigned int param32, unsigned long param64);
+
+static void worker(struct work_struct *work);
+
+static void add_samples_to_oprofile(unsigned cpu, unsigned long *,
+ unsigned long *dear);
+
+static void init_all_cpu_buffers(void)
+{
+ int cpu;
+ struct hws_cpu_buffer *cb;
+
+ for_each_online_cpu(cpu) {
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ memset(cb, 0, sizeof(struct hws_cpu_buffer));
+ }
+}
+
+static int is_link_entry(unsigned long *s)
+{
+ return *s & 0x1ul ? 1 : 0;
+}
+
+static unsigned long *get_next_sdbt(unsigned long *s)
+{
+ return (unsigned long *) (*s & ~0x1ul);
+}
+
+static int prepare_cpu_buffers(void)
+{
+ int cpu;
+ int rc;
+ struct hws_cpu_buffer *cb;
+
+ rc = 0;
+ for_each_online_cpu(cpu) {
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ atomic_set(&cb->ext_params, 0);
+ cb->worker_entry = 0;
+ cb->sample_overflow = 0;
+ cb->req_alert = 0;
+ cb->incorrect_sdbt_entry = 0;
+ cb->invalid_entry_address = 0;
+ cb->loss_of_sample_data = 0;
+ cb->sample_auth_change_alert = 0;
+ cb->finish = 0;
+ cb->oom = 0;
+ cb->stop_mode = 0;
+ }
+
+ return rc;
+}
+
+/*
+ * allocate_sdbt() - allocate sampler memory
+ * @cpu: the cpu for which sampler memory is allocated
+ *
+ * A 4K page is allocated for each requested SDBT.
+ * A maximum of 511 4K pages are allocated for the SDBs in each of the SDBTs.
+ * Set ALERT_REQ mask in each SDBs trailer.
+ * Returns zero if successful, <0 otherwise.
+ */
+static int allocate_sdbt(int cpu)
+{
+ int j, k, rc;
+ unsigned long *sdbt;
+ unsigned long sdb;
+ unsigned long *tail;
+ unsigned long *trailer;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ if (cb->first_sdbt)
+ return -EINVAL;
+
+ sdbt = NULL;
+ tail = sdbt;
+
+ for (j = 0; j < num_sdbt; j++) {
+ sdbt = (unsigned long *)get_zeroed_page(GFP_KERNEL);
+
+ mutex_lock(&hws_sem_oom);
+ /* OOM killer might have been activated */
+ barrier();
+ if (oom_killer_was_active || !sdbt) {
+ if (sdbt)
+ free_page((unsigned long)sdbt);
+
+ goto allocate_sdbt_error;
+ }
+ if (cb->first_sdbt == 0)
+ cb->first_sdbt = (unsigned long)sdbt;
+
+ /* link current page to tail of chain */
+ if (tail)
+ *tail = (unsigned long)(void *)sdbt + 1;
+
+ mutex_unlock(&hws_sem_oom);
+
+ for (k = 0; k < num_sdb; k++) {
+ /* get and set SDB page */
+ sdb = get_zeroed_page(GFP_KERNEL);
+
+ mutex_lock(&hws_sem_oom);
+ /* OOM killer might have been activated */
+ barrier();
+ if (oom_killer_was_active || !sdb) {
+ if (sdb)
+ free_page(sdb);
+
+ goto allocate_sdbt_error;
+ }
+ *sdbt = sdb;
+ trailer = trailer_entry_ptr(*sdbt);
+ *trailer = ALERT_REQ_MASK;
+ sdbt++;
+ mutex_unlock(&hws_sem_oom);
+ }
+ tail = sdbt;
+ }
+ mutex_lock(&hws_sem_oom);
+ if (oom_killer_was_active)
+ goto allocate_sdbt_error;
+
+ rc = 0;
+ if (tail)
+ *tail = (unsigned long)
+ ((void *)cb->first_sdbt) + 1;
+
+allocate_sdbt_exit:
+ mutex_unlock(&hws_sem_oom);
+ return rc;
+
+allocate_sdbt_error:
+ rc = -ENOMEM;
+ goto allocate_sdbt_exit;
+}
+
+/*
+ * deallocate_sdbt() - deallocate all sampler memory
+ *
+ * For each online CPU all SDBT trees are deallocated.
+ * Returns the number of freed pages.
+ */
+static int deallocate_sdbt(void)
+{
+ int cpu;
+ int counter;
+
+ counter = 0;
+
+ for_each_online_cpu(cpu) {
+ unsigned long start;
+ unsigned long sdbt;
+ unsigned long *curr;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ if (!cb->first_sdbt)
+ continue;
+
+ sdbt = cb->first_sdbt;
+ curr = (unsigned long *) sdbt;
+ start = sdbt;
+
+ /* we'll free the SDBT after all SDBs are processed... */
+ while (1) {
+ if (!*curr || !sdbt)
+ break;
+
+ /* watch for link entry reset if found */
+ if (is_link_entry(curr)) {
+ curr = get_next_sdbt(curr);
+ if (sdbt)
+ free_page(sdbt);
+
+ /* we are done if we reach the start */
+ if ((unsigned long) curr == start)
+ break;
+ else
+ sdbt = (unsigned long) curr;
+ } else {
+ /* process SDB pointer */
+ if (*curr) {
+ free_page(*curr);
+ curr++;
+ }
+ }
+ counter++;
+ }
+ cb->first_sdbt = 0;
+ }
+ return counter;
+}
+
+static int start_sampling(int cpu)
+{
+ int rc;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ rc = smp_ctl_ssctl_enable_activate(cpu, interval);
+ if (rc) {
+ printk(KERN_INFO "hwsampler: CPU %d ssctl failed.\n", cpu);
+ goto start_exit;
+ }
+
+ rc = -EINVAL;
+ if (!cb->qsi.es) {
+ printk(KERN_INFO "hwsampler: CPU %d ssctl not enabled.\n", cpu);
+ goto start_exit;
+ }
+
+ if (!cb->qsi.cs) {
+ printk(KERN_INFO "hwsampler: CPU %d ssctl not active.\n", cpu);
+ goto start_exit;
+ }
+
+ printk(KERN_INFO
+ "hwsampler: CPU %d, CPUMF Sampling started, interval %lu.\n",
+ cpu, interval);
+
+ rc = 0;
+
+start_exit:
+ return rc;
+}
+
+static int stop_sampling(int cpu)
+{
+ unsigned long v;
+ int rc;
+ struct hws_cpu_buffer *cb;
+
+ rc = smp_ctl_qsi(cpu);
+ WARN_ON(rc);
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ if (!rc && !cb->qsi.es)
+ printk(KERN_INFO "hwsampler: CPU %d, already stopped.\n", cpu);
+
+ rc = smp_ctl_ssctl_stop(cpu);
+ if (rc) {
+ printk(KERN_INFO "hwsampler: CPU %d, ssctl stop error %d.\n",
+ cpu, rc);
+ goto stop_exit;
+ }
+
+ printk(KERN_INFO "hwsampler: CPU %d, CPUMF Sampling stopped.\n", cpu);
+
+stop_exit:
+ v = cb->req_alert;
+ if (v)
+ printk(KERN_ERR "hwsampler: CPU %d CPUMF Request alert,"
+ " count=%lu.\n", cpu, v);
+
+ v = cb->loss_of_sample_data;
+ if (v)
+ printk(KERN_ERR "hwsampler: CPU %d CPUMF Loss of sample data,"
+ " count=%lu.\n", cpu, v);
+
+ v = cb->invalid_entry_address;
+ if (v)
+ printk(KERN_ERR "hwsampler: CPU %d CPUMF Invalid entry address,"
+ " count=%lu.\n", cpu, v);
+
+ v = cb->incorrect_sdbt_entry;
+ if (v)
+ printk(KERN_ERR
+ "hwsampler: CPU %d CPUMF Incorrect SDBT address,"
+ " count=%lu.\n", cpu, v);
+
+ v = cb->sample_auth_change_alert;
+ if (v)
+ printk(KERN_ERR
+ "hwsampler: CPU %d CPUMF Sample authorization change,"
+ " count=%lu.\n", cpu, v);
+
+ return rc;
+}
+
+static int check_hardware_prerequisites(void)
+{
+ unsigned long long facility_bits[2];
+
+ memcpy(facility_bits, S390_lowcore.stfle_fac_list, 32);
+ if (!(facility_bits[1] & (1ULL << 59)))
+ return -EOPNOTSUPP;
+
+ return 0;
+}
+/*
+ * hws_oom_callback() - the OOM callback function
+ *
+ * In case the callback is invoked during memory allocation for the
+ * hw sampler, all obtained memory is deallocated and a flag is set
+ * so main sampler memory allocation can exit with a failure code.
+ * In case the callback is invoked during sampling the hw sampler
+ * is deactivated for all CPUs.
+ */
+static int hws_oom_callback(struct notifier_block *nfb,
+ unsigned long dummy, void *parm)
+{
+ unsigned long *freed;
+ int cpu;
+ struct hws_cpu_buffer *cb;
+
+ freed = parm;
+
+ mutex_lock(&hws_sem_oom);
+
+ if (hws_state == HWS_DEALLOCATED) {
+ /* during memory allocation */
+ if (oom_killer_was_active == 0) {
+ oom_killer_was_active = 1;
+ *freed += deallocate_sdbt();
+ }
+ } else {
+ int i;
+ cpu = get_cpu();
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ if (!cb->oom) {
+ for_each_online_cpu(i) {
+ smp_ctl_ssctl_deactivate(i);
+ cb->oom = 1;
+ }
+ cb->finish = 1;
+
+ printk(KERN_INFO
+ "hwsampler: CPU %d, OOM notify during CPUMF Sampling.\n",
+ cpu);
+ }
+ }
+
+ mutex_unlock(&hws_sem_oom);
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block hws_oom_notifier = {
+ .notifier_call = hws_oom_callback
+};
+
+static int hws_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ /* We do not have sampler space available for all possible CPUs.
+ All CPUs should be online when hw sampling is activated. */
+ return NOTIFY_BAD;
+}
+
+static struct notifier_block hws_cpu_notifier = {
+ .notifier_call = hws_cpu_callback
+};
+
+/**
+ * hwsampler_deactivate() - set hardware sampling temporarily inactive
+ * @cpu: specifies the CPU to be set inactive.
+ *
+ * Returns 0 on success, !0 on failure.
+ */
+int hwsampler_deactivate(unsigned int cpu)
+{
+ /*
+ * Deactivate hw sampling temporarily and flush the buffer
+ * by pushing all the pending samples to oprofile buffer.
+ *
+ * This function can be called under one of the following conditions:
+ * Memory unmap, task is exiting.
+ */
+ int rc;
+ struct hws_cpu_buffer *cb;
+
+ rc = 0;
+ mutex_lock(&hws_sem);
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ if (hws_state == HWS_STARTED) {
+ rc = smp_ctl_qsi(cpu);
+ WARN_ON(rc);
+ if (cb->qsi.cs) {
+ rc = smp_ctl_ssctl_deactivate(cpu);
+ if (rc) {
+ printk(KERN_INFO
+ "hwsampler: CPU %d, CPUMF Deactivation failed.\n", cpu);
+ cb->finish = 1;
+ hws_state = HWS_STOPPING;
+ } else {
+ hws_flush_all = 1;
+ /* Add work to queue to read pending samples.*/
+ queue_work_on(cpu, hws_wq, &cb->worker);
+ }
+ }
+ }
+ mutex_unlock(&hws_sem);
+
+ if (hws_wq)
+ flush_workqueue(hws_wq);
+
+ return rc;
+}
+
+/**
+ * hwsampler_activate() - activate/resume hardware sampling which was deactivated
+ * @cpu: specifies the CPU to be set active.
+ *
+ * Returns 0 on success, !0 on failure.
+ */
+int hwsampler_activate(unsigned int cpu)
+{
+ /*
+ * Re-activate hw sampling. This should be called in pair with
+ * hwsampler_deactivate().
+ */
+ int rc;
+ struct hws_cpu_buffer *cb;
+
+ rc = 0;
+ mutex_lock(&hws_sem);
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ if (hws_state == HWS_STARTED) {
+ rc = smp_ctl_qsi(cpu);
+ WARN_ON(rc);
+ if (!cb->qsi.cs) {
+ hws_flush_all = 0;
+ rc = smp_ctl_ssctl_enable_activate(cpu, interval);
+ if (rc) {
+ printk(KERN_ERR
+ "CPU %d, CPUMF activate sampling failed.\n",
+ cpu);
+ }
+ }
+ }
+
+ mutex_unlock(&hws_sem);
+
+ return rc;
+}
+
+static void hws_ext_handler(unsigned int ext_int_code,
+ unsigned int param32, unsigned long param64)
+{
+ int cpu;
+ struct hws_cpu_buffer *cb;
+
+ cpu = smp_processor_id();
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ atomic_xchg(
+ &cb->ext_params,
+ atomic_read(&cb->ext_params)
+ | S390_lowcore.ext_params);
+
+ if (hws_wq)
+ queue_work(hws_wq, &cb->worker);
+}
+
+static int check_qsi_on_setup(void)
+{
+ int rc;
+ unsigned int cpu;
+ struct hws_cpu_buffer *cb;
+
+ for_each_online_cpu(cpu) {
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ rc = smp_ctl_qsi(cpu);
+ WARN_ON(rc);
+ if (rc)
+ return -EOPNOTSUPP;
+
+ if (!cb->qsi.as) {
+ printk(KERN_INFO "hwsampler: CPUMF sampling is not authorized.\n");
+ return -EINVAL;
+ }
+
+ if (cb->qsi.es) {
+ printk(KERN_WARNING "hwsampler: CPUMF is still enabled.\n");
+ rc = smp_ctl_ssctl_stop(cpu);
+ if (rc)
+ return -EINVAL;
+
+ printk(KERN_INFO
+ "CPU %d, CPUMF Sampling stopped now.\n", cpu);
+ }
+ }
+ return 0;
+}
+
+static int check_qsi_on_start(void)
+{
+ unsigned int cpu;
+ int rc;
+ struct hws_cpu_buffer *cb;
+
+ for_each_online_cpu(cpu) {
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ rc = smp_ctl_qsi(cpu);
+ WARN_ON(rc);
+
+ if (!cb->qsi.as)
+ return -EINVAL;
+
+ if (cb->qsi.es)
+ return -EINVAL;
+
+ if (cb->qsi.cs)
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void worker_on_start(unsigned int cpu)
+{
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ cb->worker_entry = cb->first_sdbt;
+}
+
+static int worker_check_error(unsigned int cpu, int ext_params)
+{
+ int rc;
+ unsigned long *sdbt;
+ struct hws_cpu_buffer *cb;
+
+ rc = 0;
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ sdbt = (unsigned long *) cb->worker_entry;
+
+ if (!sdbt || !*sdbt)
+ return -EINVAL;
+
+ if (ext_params & EI_IEA)
+ cb->req_alert++;
+
+ if (ext_params & EI_LSDA)
+ cb->loss_of_sample_data++;
+
+ if (ext_params & EI_IEA) {
+ cb->invalid_entry_address++;
+ rc = -EINVAL;
+ }
+
+ if (ext_params & EI_ISE) {
+ cb->incorrect_sdbt_entry++;
+ rc = -EINVAL;
+ }
+
+ if (ext_params & EI_SACA) {
+ cb->sample_auth_change_alert++;
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
+static void worker_on_finish(unsigned int cpu)
+{
+ int rc, i;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ if (cb->finish) {
+ rc = smp_ctl_qsi(cpu);
+ WARN_ON(rc);
+ if (cb->qsi.es) {
+ printk(KERN_INFO
+ "hwsampler: CPU %d, CPUMF Stop/Deactivate sampling.\n",
+ cpu);
+ rc = smp_ctl_ssctl_stop(cpu);
+ if (rc)
+ printk(KERN_INFO
+ "hwsampler: CPU %d, CPUMF Deactivation failed.\n",
+ cpu);
+
+ for_each_online_cpu(i) {
+ if (i == cpu)
+ continue;
+ if (!cb->finish) {
+ cb->finish = 1;
+ queue_work_on(i, hws_wq,
+ &cb->worker);
+ }
+ }
+ }
+ }
+}
+
+static void worker_on_interrupt(unsigned int cpu)
+{
+ unsigned long *sdbt;
+ unsigned char done;
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ sdbt = (unsigned long *) cb->worker_entry;
+
+ done = 0;
+ /* do not proceed if stop was entered,
+ * forget the buffers not yet processed */
+ while (!done && !cb->stop_mode) {
+ unsigned long *trailer;
+ struct hws_trailer_entry *te;
+ unsigned long *dear = 0;
+
+ trailer = trailer_entry_ptr(*sdbt);
+ /* leave loop if no more work to do */
+ if (!(*trailer & BUFFER_FULL_MASK)) {
+ done = 1;
+ if (!hws_flush_all)
+ continue;
+ }
+
+ te = (struct hws_trailer_entry *)trailer;
+ cb->sample_overflow += te->overflow;
+
+ add_samples_to_oprofile(cpu, sdbt, dear);
+
+ /* reset trailer */
+ xchg((unsigned char *) te, 0x40);
+
+ /* advance to next sdb slot in current sdbt */
+ sdbt++;
+ /* in case link bit is set use address w/o link bit */
+ if (is_link_entry(sdbt))
+ sdbt = get_next_sdbt(sdbt);
+
+ cb->worker_entry = (unsigned long)sdbt;
+ }
+}
+
+static void add_samples_to_oprofile(unsigned int cpu, unsigned long *sdbt,
+ unsigned long *dear)
+{
+ struct hws_data_entry *sample_data_ptr;
+ unsigned long *trailer;
+
+ trailer = trailer_entry_ptr(*sdbt);
+ if (dear) {
+ if (dear > trailer)
+ return;
+ trailer = dear;
+ }
+
+ sample_data_ptr = (struct hws_data_entry *)(*sdbt);
+
+ while ((unsigned long *)sample_data_ptr < trailer) {
+ struct pt_regs *regs = NULL;
+ struct task_struct *tsk = NULL;
+
+ /*
+ * Check sampling mode, 1 indicates basic (=customer) sampling
+ * mode.
+ */
+ if (sample_data_ptr->def != 1) {
+ /* sample slot is not yet written */
+ break;
+ } else {
+ /* make sure we don't use it twice,
+ * the next time the sampler will set it again */
+ sample_data_ptr->def = 0;
+ }
+
+ /* Get pt_regs. */
+ if (sample_data_ptr->P == 1) {
+ /* userspace sample */
+ unsigned int pid = sample_data_ptr->prim_asn;
+ rcu_read_lock();
+ tsk = pid_task(find_vpid(pid), PIDTYPE_PID);
+ if (tsk)
+ regs = task_pt_regs(tsk);
+ rcu_read_unlock();
+ } else {
+ /* kernelspace sample */
+ regs = task_pt_regs(current);
+ }
+
+ mutex_lock(&hws_sem);
+ oprofile_add_ext_hw_sample(sample_data_ptr->ia, regs, 0,
+ !sample_data_ptr->P, tsk);
+ mutex_unlock(&hws_sem);
+
+ sample_data_ptr++;
+ }
+}
+
+static void worker(struct work_struct *work)
+{
+ unsigned int cpu;
+ int ext_params;
+ struct hws_cpu_buffer *cb;
+
+ cb = container_of(work, struct hws_cpu_buffer, worker);
+ cpu = smp_processor_id();
+ ext_params = atomic_xchg(&cb->ext_params, 0);
+
+ if (!cb->worker_entry)
+ worker_on_start(cpu);
+
+ if (worker_check_error(cpu, ext_params))
+ return;
+
+ if (!cb->finish)
+ worker_on_interrupt(cpu);
+
+ if (cb->finish)
+ worker_on_finish(cpu);
+}
+
+/**
+ * hwsampler_allocate() - allocate memory for the hardware sampler
+ * @sdbt: number of SDBTs per online CPU (must be > 0)
+ * @sdb: number of SDBs per SDBT (minimum 1, maximum 511)
+ *
+ * Returns 0 on success, !0 on failure.
+ */
+int hwsampler_allocate(unsigned long sdbt, unsigned long sdb)
+{
+ int cpu, rc;
+ mutex_lock(&hws_sem);
+
+ rc = -EINVAL;
+ if (hws_state != HWS_DEALLOCATED)
+ goto allocate_exit;
+
+ if (sdbt < 1)
+ goto allocate_exit;
+
+ if (sdb > MAX_NUM_SDB || sdb < MIN_NUM_SDB)
+ goto allocate_exit;
+
+ num_sdbt = sdbt;
+ num_sdb = sdb;
+
+ oom_killer_was_active = 0;
+ register_oom_notifier(&hws_oom_notifier);
+
+ for_each_online_cpu(cpu) {
+ if (allocate_sdbt(cpu)) {
+ unregister_oom_notifier(&hws_oom_notifier);
+ goto allocate_error;
+ }
+ }
+ unregister_oom_notifier(&hws_oom_notifier);
+ if (oom_killer_was_active)
+ goto allocate_error;
+
+ hws_state = HWS_STOPPED;
+ rc = 0;
+
+allocate_exit:
+ mutex_unlock(&hws_sem);
+ return rc;
+
+allocate_error:
+ rc = -ENOMEM;
+ printk(KERN_ERR "hwsampler: CPUMF Memory allocation failed.\n");
+ goto allocate_exit;
+}
+
+/**
+ * hwsampler_deallocate() - deallocate hardware sampler memory
+ *
+ * Returns 0 on success, !0 on failure.
+ */
+int hwsampler_deallocate()
+{
+ int rc;
+
+ mutex_lock(&hws_sem);
+
+ rc = -EINVAL;
+ if (hws_state != HWS_STOPPED)
+ goto deallocate_exit;
+
+ smp_ctl_clear_bit(0, 5); /* set bit 58 CR0 off */
+ deallocate_sdbt();
+
+ hws_state = HWS_DEALLOCATED;
+ rc = 0;
+
+deallocate_exit:
+ mutex_unlock(&hws_sem);
+
+ return rc;
+}
+
+long hwsampler_query_min_interval(void)
+{
+ if (min_sampler_rate)
+ return min_sampler_rate;
+ else
+ return -EINVAL;
+}
+
+long hwsampler_query_max_interval(void)
+{
+ if (max_sampler_rate)
+ return max_sampler_rate;
+ else
+ return -EINVAL;
+}
+
+unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu)
+{
+ struct hws_cpu_buffer *cb;
+
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+
+ return cb->sample_overflow;
+}
+
+int hwsampler_setup()
+{
+ int rc;
+ int cpu;
+ struct hws_cpu_buffer *cb;
+
+ mutex_lock(&hws_sem);
+
+ rc = -EINVAL;
+ if (hws_state)
+ goto setup_exit;
+
+ hws_state = HWS_INIT;
+
+ init_all_cpu_buffers();
+
+ rc = check_hardware_prerequisites();
+ if (rc)
+ goto setup_exit;
+
+ rc = check_qsi_on_setup();
+ if (rc)
+ goto setup_exit;
+
+ rc = -EINVAL;
+ hws_wq = create_workqueue("hwsampler");
+ if (!hws_wq)
+ goto setup_exit;
+
+ register_cpu_notifier(&hws_cpu_notifier);
+
+ for_each_online_cpu(cpu) {
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ INIT_WORK(&cb->worker, worker);
+ rc = smp_ctl_qsi(cpu);
+ WARN_ON(rc);
+ if (min_sampler_rate != cb->qsi.min_sampl_rate) {
+ if (min_sampler_rate) {
+ printk(KERN_WARNING
+ "hwsampler: different min sampler rate values.\n");
+ if (min_sampler_rate < cb->qsi.min_sampl_rate)
+ min_sampler_rate =
+ cb->qsi.min_sampl_rate;
+ } else
+ min_sampler_rate = cb->qsi.min_sampl_rate;
+ }
+ if (max_sampler_rate != cb->qsi.max_sampl_rate) {
+ if (max_sampler_rate) {
+ printk(KERN_WARNING
+ "hwsampler: different max sampler rate values.\n");
+ if (max_sampler_rate > cb->qsi.max_sampl_rate)
+ max_sampler_rate =
+ cb->qsi.max_sampl_rate;
+ } else
+ max_sampler_rate = cb->qsi.max_sampl_rate;
+ }
+ }
+ register_external_interrupt(0x1407, hws_ext_handler);
+
+ hws_state = HWS_DEALLOCATED;
+ rc = 0;
+
+setup_exit:
+ mutex_unlock(&hws_sem);
+ return rc;
+}
+
+int hwsampler_shutdown()
+{
+ int rc;
+
+ mutex_lock(&hws_sem);
+
+ rc = -EINVAL;
+ if (hws_state == HWS_DEALLOCATED || hws_state == HWS_STOPPED) {
+ mutex_unlock(&hws_sem);
+
+ if (hws_wq)
+ flush_workqueue(hws_wq);
+
+ mutex_lock(&hws_sem);
+
+ if (hws_state == HWS_STOPPED) {
+ smp_ctl_clear_bit(0, 5); /* set bit 58 CR0 off */
+ deallocate_sdbt();
+ }
+ if (hws_wq) {
+ destroy_workqueue(hws_wq);
+ hws_wq = NULL;
+ }
+
+ unregister_external_interrupt(0x1407, hws_ext_handler);
+ hws_state = HWS_INIT;
+ rc = 0;
+ }
+ mutex_unlock(&hws_sem);
+
+ unregister_cpu_notifier(&hws_cpu_notifier);
+
+ return rc;
+}
+
+/**
+ * hwsampler_start_all() - start hardware sampling on all online CPUs
+ * @rate: specifies the used interval when samples are taken
+ *
+ * Returns 0 on success, !0 on failure.
+ */
+int hwsampler_start_all(unsigned long rate)
+{
+ int rc, cpu;
+
+ mutex_lock(&hws_sem);
+
+ hws_oom = 0;
+
+ rc = -EINVAL;
+ if (hws_state != HWS_STOPPED)
+ goto start_all_exit;
+
+ interval = rate;
+
+ /* fail if rate is not valid */
+ if (interval < min_sampler_rate || interval > max_sampler_rate)
+ goto start_all_exit;
+
+ rc = check_qsi_on_start();
+ if (rc)
+ goto start_all_exit;
+
+ rc = prepare_cpu_buffers();
+ if (rc)
+ goto start_all_exit;
+
+ for_each_online_cpu(cpu) {
+ rc = start_sampling(cpu);
+ if (rc)
+ break;
+ }
+ if (rc) {
+ for_each_online_cpu(cpu) {
+ stop_sampling(cpu);
+ }
+ goto start_all_exit;
+ }
+ hws_state = HWS_STARTED;
+ rc = 0;
+
+start_all_exit:
+ mutex_unlock(&hws_sem);
+
+ if (rc)
+ return rc;
+
+ register_oom_notifier(&hws_oom_notifier);
+ hws_oom = 1;
+ hws_flush_all = 0;
+ /* now let them in, 1407 CPUMF external interrupts */
+ smp_ctl_set_bit(0, 5); /* set CR0 bit 58 */
+
+ return 0;
+}
+
+/**
+ * hwsampler_stop_all() - stop hardware sampling on all online CPUs
+ *
+ * Returns 0 on success, !0 on failure.
+ */
+int hwsampler_stop_all()
+{
+ int tmp_rc, rc, cpu;
+ struct hws_cpu_buffer *cb;
+
+ mutex_lock(&hws_sem);
+
+ rc = 0;
+ if (hws_state == HWS_INIT) {
+ mutex_unlock(&hws_sem);
+ return rc;
+ }
+ hws_state = HWS_STOPPING;
+ mutex_unlock(&hws_sem);
+
+ for_each_online_cpu(cpu) {
+ cb = &per_cpu(sampler_cpu_buffer, cpu);
+ cb->stop_mode = 1;
+ tmp_rc = stop_sampling(cpu);
+ if (tmp_rc)
+ rc = tmp_rc;
+ }
+
+ if (hws_wq)
+ flush_workqueue(hws_wq);
+
+ mutex_lock(&hws_sem);
+ if (hws_oom) {
+ unregister_oom_notifier(&hws_oom_notifier);
+ hws_oom = 0;
+ }
+ hws_state = HWS_STOPPED;
+ mutex_unlock(&hws_sem);
+
+ return rc;
+}
diff --git a/arch/s390/oprofile/hwsampler.h b/arch/s390/oprofile/hwsampler.h
new file mode 100644
index 0000000..8c72b59
--- /dev/null
+++ b/arch/s390/oprofile/hwsampler.h
@@ -0,0 +1,113 @@
+/*
+ * CPUMF HW sampler functions and internal structures
+ *
+ * Copyright IBM Corp. 2010
+ * Author(s): Heinz Graalfs <graalfs@...ibm.com>
+ */
+
+#ifndef HWSAMPLER_H_
+#define HWSAMPLER_H_
+
+#include <linux/workqueue.h>
+
+struct hws_qsi_info_block /* QUERY SAMPLING information block */
+{ /* Bit(s) */
+ unsigned int b0_13:14; /* 0-13: zeros */
+ unsigned int as:1; /* 14: sampling authorisation control*/
+ unsigned int b15_21:7; /* 15-21: zeros */
+ unsigned int es:1; /* 22: sampling enable control */
+ unsigned int b23_29:7; /* 23-29: zeros */
+ unsigned int cs:1; /* 30: sampling activation control */
+ unsigned int:1; /* 31: reserved */
+ unsigned int bsdes:16; /* 4-5: size of sampling entry */
+ unsigned int:16; /* 6-7: reserved */
+ unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */
+ unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/
+ unsigned long tear; /* 24-31: TEAR contents */
+ unsigned long dear; /* 32-39: DEAR contents */
+ unsigned int rsvrd0; /* 40-43: reserved */
+ unsigned int cpu_speed; /* 44-47: CPU speed */
+ unsigned long long rsvrd1; /* 48-55: reserved */
+ unsigned long long rsvrd2; /* 56-63: reserved */
+};
+
+struct hws_ssctl_request_block /* SET SAMPLING CONTROLS req block */
+{ /* bytes 0 - 7 Bit(s) */
+ unsigned int s:1; /* 0: maximum buffer indicator */
+ unsigned int h:1; /* 1: part. level reserved for VM use*/
+ unsigned long b2_53:52; /* 2-53: zeros */
+ unsigned int es:1; /* 54: sampling enable control */
+ unsigned int b55_61:7; /* 55-61: - zeros */
+ unsigned int cs:1; /* 62: sampling activation control */
+ unsigned int b63:1; /* 63: zero */
+ unsigned long interval; /* 8-15: sampling interval */
+ unsigned long tear; /* 16-23: TEAR contents */
+ unsigned long dear; /* 24-31: DEAR contents */
+ /* 32-63: */
+ unsigned long rsvrd1; /* reserved */
+ unsigned long rsvrd2; /* reserved */
+ unsigned long rsvrd3; /* reserved */
+ unsigned long rsvrd4; /* reserved */
+};
+
+struct hws_cpu_buffer {
+ unsigned long first_sdbt; /* @ of 1st SDB-Table for this CP*/
+ unsigned long worker_entry;
+ unsigned long sample_overflow; /* taken from SDB ... */
+ struct hws_qsi_info_block qsi;
+ struct hws_ssctl_request_block ssctl;
+ struct work_struct worker;
+ atomic_t ext_params;
+ unsigned long req_alert;
+ unsigned long loss_of_sample_data;
+ unsigned long invalid_entry_address;
+ unsigned long incorrect_sdbt_entry;
+ unsigned long sample_auth_change_alert;
+ unsigned int finish:1;
+ unsigned int oom:1;
+ unsigned int stop_mode:1;
+};
+
+struct hws_data_entry {
+ unsigned int def:16; /* 0-15 Data Entry Format */
+ unsigned int R:4; /* 16-19 reserved */
+ unsigned int U:4; /* 20-23 Number of unique instruct. */
+ unsigned int z:2; /* zeros */
+ unsigned int T:1; /* 26 PSW DAT mode */
+ unsigned int W:1; /* 27 PSW wait state */
+ unsigned int P:1; /* 28 PSW Problem state */
+ unsigned int AS:2; /* 29-30 PSW address-space control */
+ unsigned int I:1; /* 31 entry valid or invalid */
+ unsigned int:16;
+ unsigned int prim_asn:16; /* primary ASN */
+ unsigned long long ia; /* Instruction Address */
+ unsigned long long lpp; /* Logical-Partition Program Param. */
+ unsigned long long vpp; /* Virtual-Machine Program Param. */
+};
+
+struct hws_trailer_entry {
+ unsigned int f:1; /* 0 - Block Full Indicator */
+ unsigned int a:1; /* 1 - Alert request control */
+ unsigned long:62; /* 2 - 63: Reserved */
+ unsigned long overflow; /* 64 - sample Overflow count */
+ unsigned long timestamp; /* 16 - time-stamp */
+ unsigned long timestamp1; /* */
+ unsigned long reserved1; /* 32 -Reserved */
+ unsigned long reserved2; /* */
+ unsigned long progusage1; /* 48 - reserved for programming use */
+ unsigned long progusage2; /* */
+};
+
+int hwsampler_setup(void);
+int hwsampler_shutdown(void);
+int hwsampler_allocate(unsigned long sdbt, unsigned long sdb);
+int hwsampler_deallocate(void);
+long hwsampler_query_min_interval(void);
+long hwsampler_query_max_interval(void);
+int hwsampler_start_all(unsigned long interval);
+int hwsampler_stop_all(void);
+int hwsampler_deactivate(unsigned int cpu);
+int hwsampler_activate(unsigned int cpu);
+unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu);
+
+#endif /*HWSAMPLER_H_*/
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 7a99511..16c76de 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -4,23 +4,182 @@
* S390 Version
* Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Thomas Spatzier (tspat@...ibm.com)
+ * Author(s): Mahesh Salgaonkar (mahesh@...ux.vnet.ibm.com)
+ * Author(s): Heinz Graalfs (graalfs@...ux.vnet.ibm.com)
*
- * @remark Copyright 2002 OProfile authors
+ * @remark Copyright 2002-2011 OProfile authors
*/
#include <linux/oprofile.h>
#include <linux/init.h>
#include <linux/errno.h>
+#include <linux/oprofile.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+
+#include "../../../drivers/oprofile/oprof.h"
+#include "hwsampler.h"
+
+#define DEFAULT_INTERVAL 4096
+
+#define DEFAULT_SDBT_BLOCKS 1
+#define DEFAULT_SDB_BLOCKS 511
+
+static unsigned long oprofile_hw_interval = DEFAULT_INTERVAL;
+static unsigned long oprofile_min_interval;
+static unsigned long oprofile_max_interval;
+
+static unsigned long oprofile_sdbt_blocks = DEFAULT_SDBT_BLOCKS;
+static unsigned long oprofile_sdb_blocks = DEFAULT_SDB_BLOCKS;
+static int hwsampler_file;
+static int hwsampler_running; /* start_mutex must be held to change */
+
+static struct oprofile_operations timer_ops;
extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth);
-int __init oprofile_arch_init(struct oprofile_operations* ops)
+static int oprofile_hwsampler_start(void)
+{
+ int retval;
+
+ hwsampler_running = hwsampler_file;
+
+ if (!hwsampler_running)
+ return timer_ops.start();
+
+ retval = hwsampler_allocate(oprofile_sdbt_blocks, oprofile_sdb_blocks);
+ if (retval)
+ return retval;
+
+ retval = hwsampler_start_all(oprofile_hw_interval);
+ if (retval)
+ hwsampler_deallocate();
+
+ return retval;
+}
+
+static void oprofile_hwsampler_stop(void)
+{
+ if (!hwsampler_running) {
+ timer_ops.stop();
+ return;
+ }
+
+ hwsampler_stop_all();
+ hwsampler_deallocate();
+ return;
+}
+
+static ssize_t hwsampler_read(struct file *file, char __user *buf,
+ size_t count, loff_t *offset)
+{
+ return oprofilefs_ulong_to_user(hwsampler_file, buf, count, offset);
+}
+
+static ssize_t hwsampler_write(struct file *file, char const __user *buf,
+ size_t count, loff_t *offset)
+{
+ unsigned long val;
+ int retval;
+
+ if (*offset)
+ return -EINVAL;
+
+ retval = oprofilefs_ulong_from_user(&val, buf, count);
+ if (retval)
+ return retval;
+
+ if (oprofile_started)
+ /*
+ * save to do without locking as we set
+ * hwsampler_running in start() when start_mutex is
+ * held
+ */
+ return -EBUSY;
+
+ hwsampler_file = val;
+
+ return count;
+}
+
+static const struct file_operations hwsampler_fops = {
+ .read = hwsampler_read,
+ .write = hwsampler_write,
+};
+
+static int oprofile_create_hwsampling_files(struct super_block *sb,
+ struct dentry *root)
+{
+ struct dentry *hw_dir;
+
+ /* reinitialize default values */
+ hwsampler_file = 1;
+
+ hw_dir = oprofilefs_mkdir(sb, root, "hwsampling");
+ if (!hw_dir)
+ return -EINVAL;
+
+ oprofilefs_create_file(sb, hw_dir, "hwsampler", &hwsampler_fops);
+ oprofilefs_create_ulong(sb, hw_dir, "hw_interval",
+ &oprofile_hw_interval);
+ oprofilefs_create_ro_ulong(sb, hw_dir, "hw_min_interval",
+ &oprofile_min_interval);
+ oprofilefs_create_ro_ulong(sb, hw_dir, "hw_max_interval",
+ &oprofile_max_interval);
+ oprofilefs_create_ulong(sb, hw_dir, "hw_sdbt_blocks",
+ &oprofile_sdbt_blocks);
+
+ return 0;
+}
+
+static int oprofile_hwsampler_init(struct oprofile_operations *ops)
+{
+ if (hwsampler_setup())
+ return -ENODEV;
+
+ /*
+ * create hwsampler files only if hwsampler_setup() succeeds.
+ */
+ oprofile_min_interval = hwsampler_query_min_interval();
+ if (oprofile_min_interval < 0) {
+ oprofile_min_interval = 0;
+ return -ENODEV;
+ }
+ oprofile_max_interval = hwsampler_query_max_interval();
+ if (oprofile_max_interval < 0) {
+ oprofile_max_interval = 0;
+ return -ENODEV;
+ }
+
+ if (oprofile_timer_init(ops))
+ return -ENODEV;
+
+ printk(KERN_INFO "oprofile: using hardware sampling\n");
+
+ memcpy(&timer_ops, ops, sizeof(timer_ops));
+
+ ops->start = oprofile_hwsampler_start;
+ ops->stop = oprofile_hwsampler_stop;
+ ops->create_files = oprofile_create_hwsampling_files;
+
+ return 0;
+}
+
+static void oprofile_hwsampler_exit(void)
+{
+ oprofile_timer_exit();
+ hwsampler_shutdown();
+}
+
+int __init oprofile_arch_init(struct oprofile_operations *ops)
{
ops->backtrace = s390_backtrace;
- return -ENODEV;
+
+ return oprofile_hwsampler_init(ops);
}
void oprofile_arch_exit(void)
{
+ oprofile_hwsampler_exit();
}
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 2660418..e8dbe17 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -178,8 +178,6 @@ struct cpu_hw_events {
*/
#define INTEL_UEVENT_CONSTRAINT(c, n) \
EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK)
-#define PEBS_EVENT_CONSTRAINT(c, n) \
- INTEL_UEVENT_CONSTRAINT(c, n)
#define EVENT_CONSTRAINT_END \
EVENT_CONSTRAINT(0, 0, 0)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index b95c66a..bab491b 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -362,87 +362,69 @@ static int intel_pmu_drain_bts_buffer(void)
* PEBS
*/
static struct event_constraint intel_core2_pebs_event_constraints[] = {
- PEBS_EVENT_CONSTRAINT(0x00c0, 0x1), /* INST_RETIRED.ANY */
- PEBS_EVENT_CONSTRAINT(0xfec1, 0x1), /* X87_OPS_RETIRED.ANY */
- PEBS_EVENT_CONSTRAINT(0x00c5, 0x1), /* BR_INST_RETIRED.MISPRED */
- PEBS_EVENT_CONSTRAINT(0x1fc7, 0x1), /* SIMD_INST_RETURED.ANY */
- INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x00c0, 0x1), /* INST_RETIRED.ANY */
+ INTEL_UEVENT_CONSTRAINT(0xfec1, 0x1), /* X87_OPS_RETIRED.ANY */
+ INTEL_UEVENT_CONSTRAINT(0x00c5, 0x1), /* BR_INST_RETIRED.MISPRED */
+ INTEL_UEVENT_CONSTRAINT(0x1fc7, 0x1), /* SIMD_INST_RETURED.ANY */
+ INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED.* */
EVENT_CONSTRAINT_END
};
static struct event_constraint intel_atom_pebs_event_constraints[] = {
- PEBS_EVENT_CONSTRAINT(0x00c0, 0x1), /* INST_RETIRED.ANY */
- PEBS_EVENT_CONSTRAINT(0x00c5, 0x1), /* MISPREDICTED_BRANCH_RETIRED */
- INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x00c0, 0x1), /* INST_RETIRED.ANY */
+ INTEL_UEVENT_CONSTRAINT(0x00c5, 0x1), /* MISPREDICTED_BRANCH_RETIRED */
+ INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED.* */
EVENT_CONSTRAINT_END
};
static struct event_constraint intel_nehalem_pebs_event_constraints[] = {
- INTEL_EVENT_CONSTRAINT(0x0b, 0xf), /* MEM_INST_RETIRED.* */
- INTEL_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */
- PEBS_EVENT_CONSTRAINT(0x010c, 0xf), /* MEM_STORE_RETIRED.DTLB_MISS */
- INTEL_EVENT_CONSTRAINT(0xc0, 0xf), /* INST_RETIRED.ANY */
- INTEL_EVENT_CONSTRAINT(0xc2, 0xf), /* UOPS_RETIRED.* */
- INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
- PEBS_EVENT_CONSTRAINT(0x02c5, 0xf), /* BR_MISP_RETIRED.NEAR_CALL */
- INTEL_EVENT_CONSTRAINT(0xc7, 0xf), /* SSEX_UOPS_RETIRED.* */
- PEBS_EVENT_CONSTRAINT(0x20c8, 0xf), /* ITLB_MISS_RETIRED */
- INTEL_EVENT_CONSTRAINT(0xcb, 0xf), /* MEM_LOAD_RETIRED.* */
- INTEL_EVENT_CONSTRAINT(0xf7, 0xf), /* FP_ASSIST.* */
+ INTEL_EVENT_CONSTRAINT(0x0b, 0xf), /* MEM_INST_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x010c, 0xf), /* MEM_STORE_RETIRED.DTLB_MISS */
+ INTEL_EVENT_CONSTRAINT(0xc0, 0xf), /* INST_RETIRED.ANY */
+ INTEL_EVENT_CONSTRAINT(0xc2, 0xf), /* UOPS_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x02c5, 0xf), /* BR_MISP_RETIRED.NEAR_CALL */
+ INTEL_EVENT_CONSTRAINT(0xc7, 0xf), /* SSEX_UOPS_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x20c8, 0xf), /* ITLB_MISS_RETIRED */
+ INTEL_EVENT_CONSTRAINT(0xcb, 0xf), /* MEM_LOAD_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xf7, 0xf), /* FP_ASSIST.* */
EVENT_CONSTRAINT_END
};
static struct event_constraint intel_westmere_pebs_event_constraints[] = {
- INTEL_EVENT_CONSTRAINT(0x0b, 0xf), /* MEM_INST_RETIRED.* */
- INTEL_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */
- PEBS_EVENT_CONSTRAINT(0x010c, 0xf), /* MEM_STORE_RETIRED.DTLB_MISS */
- INTEL_EVENT_CONSTRAINT(0xc0, 0xf), /* INSTR_RETIRED.* */
- INTEL_EVENT_CONSTRAINT(0xc2, 0xf), /* UOPS_RETIRED.* */
-
- INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
- INTEL_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */
- INTEL_EVENT_CONSTRAINT(0xc7, 0xf), /* SSEX_UOPS_RETIRED.* */
- PEBS_EVENT_CONSTRAINT(0x20c8, 0xf), /* ITLB_MISS_RETIRED */
- INTEL_EVENT_CONSTRAINT(0xcb, 0xf), /* MEM_LOAD_RETIRED.* */
- INTEL_EVENT_CONSTRAINT(0xf7, 0xf), /* FP_ASSIST.* */
+ INTEL_EVENT_CONSTRAINT(0x0b, 0xf), /* MEM_INST_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x010c, 0xf), /* MEM_STORE_RETIRED.DTLB_MISS */
+ INTEL_EVENT_CONSTRAINT(0xc0, 0xf), /* INSTR_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc2, 0xf), /* UOPS_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc7, 0xf), /* SSEX_UOPS_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x20c8, 0xf), /* ITLB_MISS_RETIRED */
+ INTEL_EVENT_CONSTRAINT(0xcb, 0xf), /* MEM_LOAD_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xf7, 0xf), /* FP_ASSIST.* */
EVENT_CONSTRAINT_END
};
static struct event_constraint intel_snb_pebs_events[] = {
- PEBS_EVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
- PEBS_EVENT_CONSTRAINT(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
- PEBS_EVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */
- PEBS_EVENT_CONSTRAINT(0x01c4, 0xf), /* BR_INST_RETIRED.CONDITIONAL */
- PEBS_EVENT_CONSTRAINT(0x02c4, 0xf), /* BR_INST_RETIRED.NEAR_CALL */
- PEBS_EVENT_CONSTRAINT(0x04c4, 0xf), /* BR_INST_RETIRED.ALL_BRANCHES */
- PEBS_EVENT_CONSTRAINT(0x08c4, 0xf), /* BR_INST_RETIRED.NEAR_RETURN */
- PEBS_EVENT_CONSTRAINT(0x10c4, 0xf), /* BR_INST_RETIRED.NOT_TAKEN */
- PEBS_EVENT_CONSTRAINT(0x20c4, 0xf), /* BR_INST_RETIRED.NEAR_TAKEN */
- PEBS_EVENT_CONSTRAINT(0x40c4, 0xf), /* BR_INST_RETIRED.FAR_BRANCH */
- PEBS_EVENT_CONSTRAINT(0x01c5, 0xf), /* BR_MISP_RETIRED.CONDITIONAL */
- PEBS_EVENT_CONSTRAINT(0x02c5, 0xf), /* BR_MISP_RETIRED.NEAR_CALL */
- PEBS_EVENT_CONSTRAINT(0x04c5, 0xf), /* BR_MISP_RETIRED.ALL_BRANCHES */
- PEBS_EVENT_CONSTRAINT(0x10c5, 0xf), /* BR_MISP_RETIRED.NOT_TAKEN */
- PEBS_EVENT_CONSTRAINT(0x20c5, 0xf), /* BR_MISP_RETIRED.TAKEN */
- PEBS_EVENT_CONSTRAINT(0x01cd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */
- PEBS_EVENT_CONSTRAINT(0x02cd, 0x8), /* MEM_TRANS_RETIRED.PRECISE_STORE */
- PEBS_EVENT_CONSTRAINT(0x11d0, 0xf), /* MEM_UOP_RETIRED.STLB_MISS_LOADS */
- PEBS_EVENT_CONSTRAINT(0x12d0, 0xf), /* MEM_UOP_RETIRED.STLB_MISS_STORES */
- PEBS_EVENT_CONSTRAINT(0x21d0, 0xf), /* MEM_UOP_RETIRED.LOCK_LOADS */
- PEBS_EVENT_CONSTRAINT(0x22d0, 0xf), /* MEM_UOP_RETIRED.LOCK_STORES */
- PEBS_EVENT_CONSTRAINT(0x41d0, 0xf), /* MEM_UOP_RETIRED.SPLIT_LOADS */
- PEBS_EVENT_CONSTRAINT(0x42d0, 0xf), /* MEM_UOP_RETIRED.SPLIT_STORES */
- PEBS_EVENT_CONSTRAINT(0x81d0, 0xf), /* MEM_UOP_RETIRED.ANY_LOADS */
- PEBS_EVENT_CONSTRAINT(0x82d0, 0xf), /* MEM_UOP_RETIRED.ANY_STORES */
- PEBS_EVENT_CONSTRAINT(0x01d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L1_HIT */
- PEBS_EVENT_CONSTRAINT(0x02d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L2_HIT */
- PEBS_EVENT_CONSTRAINT(0x04d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.LLC_HIT */
- PEBS_EVENT_CONSTRAINT(0x40d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.HIT_LFB */
- PEBS_EVENT_CONSTRAINT(0x01d2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_MISS */
- PEBS_EVENT_CONSTRAINT(0x02d2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_HIT */
- PEBS_EVENT_CONSTRAINT(0x04d2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_HITM */
- PEBS_EVENT_CONSTRAINT(0x08d2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_NONE */
- PEBS_EVENT_CONSTRAINT(0x02d4, 0xf), /* MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS */
+ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
+ INTEL_UEVENT_CONSTRAINT(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
+ INTEL_UEVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */
+ INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x11d0, 0xf), /* MEM_UOP_RETIRED.STLB_MISS_LOADS */
+ INTEL_UEVENT_CONSTRAINT(0x12d0, 0xf), /* MEM_UOP_RETIRED.STLB_MISS_STORES */
+ INTEL_UEVENT_CONSTRAINT(0x21d0, 0xf), /* MEM_UOP_RETIRED.LOCK_LOADS */
+ INTEL_UEVENT_CONSTRAINT(0x22d0, 0xf), /* MEM_UOP_RETIRED.LOCK_STORES */
+ INTEL_UEVENT_CONSTRAINT(0x41d0, 0xf), /* MEM_UOP_RETIRED.SPLIT_LOADS */
+ INTEL_UEVENT_CONSTRAINT(0x42d0, 0xf), /* MEM_UOP_RETIRED.SPLIT_STORES */
+ INTEL_UEVENT_CONSTRAINT(0x81d0, 0xf), /* MEM_UOP_RETIRED.ANY_LOADS */
+ INTEL_UEVENT_CONSTRAINT(0x82d0, 0xf), /* MEM_UOP_RETIRED.ANY_STORES */
+ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
+ INTEL_UEVENT_CONSTRAINT(0x02d4, 0xf), /* MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS */
EVENT_CONSTRAINT_END
};
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 59f5544..b8ef8dd 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -258,8 +258,10 @@ op_add_sample(struct oprofile_cpu_buffer *cpu_buf,
*/
static int
log_sample(struct oprofile_cpu_buffer *cpu_buf, unsigned long pc,
- unsigned long backtrace, int is_kernel, unsigned long event)
+ unsigned long backtrace, int is_kernel, unsigned long event,
+ struct task_struct *task)
{
+ struct task_struct *tsk = task ? task : current;
cpu_buf->sample_received++;
if (pc == ESCAPE_CODE) {
@@ -267,7 +269,7 @@ log_sample(struct oprofile_cpu_buffer *cpu_buf, unsigned long pc,
return 0;
}
- if (op_add_code(cpu_buf, backtrace, is_kernel, current))
+ if (op_add_code(cpu_buf, backtrace, is_kernel, tsk))
goto fail;
if (op_add_sample(cpu_buf, pc, event))
@@ -292,7 +294,8 @@ static inline void oprofile_end_trace(struct oprofile_cpu_buffer *cpu_buf)
static inline void
__oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
- unsigned long event, int is_kernel)
+ unsigned long event, int is_kernel,
+ struct task_struct *task)
{
struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer);
unsigned long backtrace = oprofile_backtrace_depth;
@@ -301,7 +304,7 @@ __oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
* if log_sample() fail we can't backtrace since we lost the
* source of this event
*/
- if (!log_sample(cpu_buf, pc, backtrace, is_kernel, event))
+ if (!log_sample(cpu_buf, pc, backtrace, is_kernel, event, task))
/* failed */
return;
@@ -313,10 +316,17 @@ __oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
oprofile_end_trace(cpu_buf);
}
+void oprofile_add_ext_hw_sample(unsigned long pc, struct pt_regs * const regs,
+ unsigned long event, int is_kernel,
+ struct task_struct *task)
+{
+ __oprofile_add_ext_sample(pc, regs, event, is_kernel, task);
+}
+
void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
unsigned long event, int is_kernel)
{
- __oprofile_add_ext_sample(pc, regs, event, is_kernel);
+ __oprofile_add_ext_sample(pc, regs, event, is_kernel, NULL);
}
void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
@@ -332,7 +342,7 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
pc = ESCAPE_CODE; /* as this causes an early return. */
}
- __oprofile_add_ext_sample(pc, regs, event, is_kernel);
+ __oprofile_add_ext_sample(pc, regs, event, is_kernel, NULL);
}
/*
@@ -403,7 +413,7 @@ int oprofile_write_commit(struct op_entry *entry)
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
{
struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer);
- log_sample(cpu_buf, pc, 0, is_kernel, event);
+ log_sample(cpu_buf, pc, 0, is_kernel, event, NULL);
}
void oprofile_add_trace(unsigned long pc)
diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
index 0107251..3ef4462 100644
--- a/drivers/oprofile/timer_int.c
+++ b/drivers/oprofile/timer_int.c
@@ -97,7 +97,7 @@ static struct notifier_block __refdata oprofile_cpu_notifier = {
.notifier_call = oprofile_cpu_notify,
};
-int __init oprofile_timer_init(struct oprofile_operations *ops)
+int oprofile_timer_init(struct oprofile_operations *ops)
{
int rc;
@@ -113,7 +113,7 @@ int __init oprofile_timer_init(struct oprofile_operations *ops)
return 0;
}
-void __exit oprofile_timer_exit(void)
+void oprofile_timer_exit(void)
{
unregister_hotcpu_notifier(&oprofile_cpu_notifier);
}
diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
index 1ca6411..7f5cfd3 100644
--- a/include/linux/oprofile.h
+++ b/include/linux/oprofile.h
@@ -106,6 +106,13 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event);
void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs,
unsigned long event, int is_kernel);
+/**
+ * Add an hardware sample.
+ */
+void oprofile_add_ext_hw_sample(unsigned long pc, struct pt_regs * const regs,
+ unsigned long event, int is_kernel,
+ struct task_struct *task);
+
/* Use this instead when the PC value is not from the regs. Doesn't
* backtrace. */
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event);
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 614615b..f495c01 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -878,8 +878,8 @@ enum perf_event_context_type {
* Used as a container for task events and CPU events as well:
*/
struct perf_event_context {
- enum perf_event_context_type type;
struct pmu *pmu;
+ enum perf_event_context_type type;
/*
* Protect the states of the events in the list,
* nr_active, and the list:
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index ed253aa..3472bb1 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -5122,7 +5122,7 @@ static int perf_exclude_event(struct perf_event *event,
struct pt_regs *regs)
{
if (event->hw.state & PERF_HES_STOPPED)
- return 0;
+ return 1;
if (regs) {
if (event->attr.exclude_user && user_mode(regs))
@@ -5478,6 +5478,8 @@ static int perf_tp_event_match(struct perf_event *event,
struct perf_sample_data *data,
struct pt_regs *regs)
{
+ if (event->hw.state & PERF_HES_STOPPED)
+ return 0;
/*
* All tracepoints are from kernel-space.
*/
@@ -6720,17 +6722,20 @@ __perf_event_exit_task(struct perf_event *child_event,
struct perf_event_context *child_ctx,
struct task_struct *child)
{
- struct perf_event *parent_event;
+ if (child_event->parent) {
+ raw_spin_lock_irq(&child_ctx->lock);
+ perf_group_detach(child_event);
+ raw_spin_unlock_irq(&child_ctx->lock);
+ }
perf_remove_from_context(child_event);
- parent_event = child_event->parent;
/*
- * It can happen that parent exits first, and has events
+ * It can happen that the parent exits first, and has events
* that are still around due to the child reference. These
- * events need to be zapped - but otherwise linger.
+ * events need to be zapped.
*/
- if (parent_event) {
+ if (child_event->parent) {
sync_child_event(child_event, child);
free_event(child_event);
}
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 14674dc..61d7d59f 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -275,7 +275,7 @@ config PROFILE_ANNOTATED_BRANCHES
This tracer profiles all the the likely and unlikely macros
in the kernel. It will display the results in:
- /sys/kernel/debug/tracing/profile_annotated_branch
+ /sys/kernel/debug/tracing/trace_stat/branch_annotated
Note: this will add a significant overhead; only turn this
on if you need to profile the system's use of these macros.
@@ -288,7 +288,7 @@ config PROFILE_ALL_BRANCHES
taken in the kernel is recorded whether it hit or miss.
The results will be displayed in:
- /sys/kernel/debug/tracing/profile_branch
+ /sys/kernel/debug/tracing/trace_stat/branch_all
This option also enables the likely/unlikely profiler.
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 3249b4f..8008ddc 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -391,8 +391,8 @@ static int process_ops(struct filter_pred *preds,
struct filter_pred *op, void *rec)
{
struct filter_pred *pred;
+ int match = 0;
int type;
- int match;
int i;
/*
diff --git a/tools/perf/Documentation/perf-evlist.txt b/tools/perf/Documentation/perf-evlist.txt
new file mode 100644
index 0000000..0cada9e
--- /dev/null
+++ b/tools/perf/Documentation/perf-evlist.txt
@@ -0,0 +1,26 @@
+perf-evlist(1)
+==============
+
+NAME
+----
+perf-evlist - List the event names in a perf.data file
+
+SYNOPSIS
+--------
+[verse]
+'perf evlist <options>'
+
+DESCRIPTION
+-----------
+This command displays the names of events sampled in a perf.data file.
+
+OPTIONS
+-------
+-i::
+--input=::
+ Input file name. (default: perf.data)
+
+SEE ALSO
+--------
+linkperf:perf-record[1], linkperf:perf-list[1],
+linkperf:perf-report[1]
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 29ad942..66f040b 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -112,6 +112,28 @@ OPTIONS
--debug-mode::
Do various checks like samples ordering and lost events.
+-f::
+--fields
+ Comma separated list of fields to print. Options are:
+ comm, tid, pid, time, cpu, event, trace, sym. Field
+ list must be prepended with the type, trace, sw or hw,
+ to indicate to which event type the field list applies.
+ e.g., -f sw:comm,tid,time,sym and -f trace:time,cpu,trace
+
+-k::
+--vmlinux=<file>::
+ vmlinux pathname
+
+--kallsyms=<file>::
+ kallsyms pathname
+
+--symfs=<directory>::
+ Look for files with symbols relative to this directory.
+
+-G::
+--hide-call-graph::
+ When printing symbols do not display call chain.
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-script-perl[1],
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 9b84218..158c30e 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -338,6 +338,7 @@ endif
BUILTIN_OBJS += $(OUTPUT)bench/mem-memcpy.o
BUILTIN_OBJS += $(OUTPUT)builtin-diff.o
+BUILTIN_OBJS += $(OUTPUT)builtin-evlist.o
BUILTIN_OBJS += $(OUTPUT)builtin-help.o
BUILTIN_OBJS += $(OUTPUT)builtin-sched.o
BUILTIN_OBJS += $(OUTPUT)builtin-buildid-list.o
diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
new file mode 100644
index 0000000..4c5e9e0
--- /dev/null
+++ b/tools/perf/builtin-evlist.c
@@ -0,0 +1,54 @@
+/*
+ * Builtin evlist command: Show the list of event selectors present
+ * in a perf.data file.
+ */
+#include "builtin.h"
+
+#include "util/util.h"
+
+#include <linux/list.h>
+
+#include "perf.h"
+#include "util/evlist.h"
+#include "util/evsel.h"
+#include "util/parse-events.h"
+#include "util/parse-options.h"
+#include "util/session.h"
+
+static char const *input_name = "perf.data";
+
+static int __cmd_evlist(void)
+{
+ struct perf_session *session;
+ struct perf_evsel *pos;
+
+ session = perf_session__new(input_name, O_RDONLY, 0, false, NULL);
+ if (session == NULL)
+ return -ENOMEM;
+
+ list_for_each_entry(pos, &session->evlist->entries, node)
+ printf("%s\n", event_name(pos));
+
+ perf_session__delete(session);
+ return 0;
+}
+
+static const char * const evlist_usage[] = {
+ "perf evlist [<options>]",
+ NULL
+};
+
+static const struct option options[] = {
+ OPT_STRING('i', "input", &input_name, "file",
+ "input file name"),
+ OPT_END()
+};
+
+int cmd_evlist(int argc, const char **argv, const char *prefix __used)
+{
+ argc = parse_options(argc, argv, options, evlist_usage, 0);
+ if (argc)
+ usage_with_options(evlist_usage, options);
+
+ return __cmd_evlist();
+}
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 2e93f99..7a2a79d 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -202,9 +202,20 @@ static struct thread_stat *thread_stat_findnew_first(u32 tid)
SINGLE_KEY(nr_acquired)
SINGLE_KEY(nr_contended)
SINGLE_KEY(wait_time_total)
-SINGLE_KEY(wait_time_min)
SINGLE_KEY(wait_time_max)
+static int lock_stat_key_wait_time_min(struct lock_stat *one,
+ struct lock_stat *two)
+{
+ u64 s1 = one->wait_time_min;
+ u64 s2 = two->wait_time_min;
+ if (s1 == ULLONG_MAX)
+ s1 = 0;
+ if (s2 == ULLONG_MAX)
+ s2 = 0;
+ return s1 > s2;
+}
+
struct lock_key {
/*
* name: the value for specify by user
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 5f40df6..9f5fc54 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -12,6 +12,8 @@
#include "util/trace-event.h"
#include "util/parse-options.h"
#include "util/util.h"
+#include "util/evlist.h"
+#include "util/evsel.h"
static char const *script_name;
static char const *generate_script_lang;
@@ -19,6 +21,183 @@ static bool debug_mode;
static u64 last_timestamp;
static u64 nr_unordered;
extern const struct option record_options[];
+static bool no_callchain;
+
+enum perf_output_field {
+ PERF_OUTPUT_COMM = 1U << 0,
+ PERF_OUTPUT_TID = 1U << 1,
+ PERF_OUTPUT_PID = 1U << 2,
+ PERF_OUTPUT_TIME = 1U << 3,
+ PERF_OUTPUT_CPU = 1U << 4,
+ PERF_OUTPUT_EVNAME = 1U << 5,
+ PERF_OUTPUT_TRACE = 1U << 6,
+ PERF_OUTPUT_SYM = 1U << 7,
+};
+
+struct output_option {
+ const char *str;
+ enum perf_output_field field;
+} all_output_options[] = {
+ {.str = "comm", .field = PERF_OUTPUT_COMM},
+ {.str = "tid", .field = PERF_OUTPUT_TID},
+ {.str = "pid", .field = PERF_OUTPUT_PID},
+ {.str = "time", .field = PERF_OUTPUT_TIME},
+ {.str = "cpu", .field = PERF_OUTPUT_CPU},
+ {.str = "event", .field = PERF_OUTPUT_EVNAME},
+ {.str = "trace", .field = PERF_OUTPUT_TRACE},
+ {.str = "sym", .field = PERF_OUTPUT_SYM},
+};
+
+/* default set to maintain compatibility with current format */
+static u64 output_fields[PERF_TYPE_MAX] = {
+ [PERF_TYPE_HARDWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \
+ PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \
+ PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM,
+
+ [PERF_TYPE_SOFTWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \
+ PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \
+ PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM,
+
+ [PERF_TYPE_TRACEPOINT] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \
+ PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \
+ PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE,
+};
+
+static bool output_set_by_user;
+
+#define PRINT_FIELD(x) (output_fields[attr->type] & PERF_OUTPUT_##x)
+
+static int perf_session__check_attr(struct perf_session *session,
+ struct perf_event_attr *attr)
+{
+ if (PRINT_FIELD(TRACE) &&
+ !perf_session__has_traces(session, "record -R"))
+ return -EINVAL;
+
+ if (PRINT_FIELD(SYM)) {
+ if (!(session->sample_type & PERF_SAMPLE_IP)) {
+ pr_err("Samples do not contain IP data.\n");
+ return -EINVAL;
+ }
+ if (!no_callchain &&
+ !(session->sample_type & PERF_SAMPLE_CALLCHAIN))
+ symbol_conf.use_callchain = false;
+ }
+
+ if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
+ !(session->sample_type & PERF_SAMPLE_TID)) {
+ pr_err("Samples do not contain TID/PID data.\n");
+ return -EINVAL;
+ }
+
+ if (PRINT_FIELD(TIME) &&
+ !(session->sample_type & PERF_SAMPLE_TIME)) {
+ pr_err("Samples do not contain timestamps.\n");
+ return -EINVAL;
+ }
+
+ if (PRINT_FIELD(CPU) &&
+ !(session->sample_type & PERF_SAMPLE_CPU)) {
+ pr_err("Samples do not contain cpu.\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void print_sample_start(struct perf_sample *sample,
+ struct thread *thread,
+ struct perf_event_attr *attr)
+{
+ int type;
+ struct event *event;
+ const char *evname = NULL;
+ unsigned long secs;
+ unsigned long usecs;
+ unsigned long long nsecs;
+
+ if (PRINT_FIELD(COMM)) {
+ if (latency_format)
+ printf("%8.8s ", thread->comm);
+ else if (PRINT_FIELD(SYM) && symbol_conf.use_callchain)
+ printf("%s ", thread->comm);
+ else
+ printf("%16s ", thread->comm);
+ }
+
+ if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
+ printf("%5d/%-5d ", sample->pid, sample->tid);
+ else if (PRINT_FIELD(PID))
+ printf("%5d ", sample->pid);
+ else if (PRINT_FIELD(TID))
+ printf("%5d ", sample->tid);
+
+ if (PRINT_FIELD(CPU)) {
+ if (latency_format)
+ printf("%3d ", sample->cpu);
+ else
+ printf("[%03d] ", sample->cpu);
+ }
+
+ if (PRINT_FIELD(TIME)) {
+ nsecs = sample->time;
+ secs = nsecs / NSECS_PER_SEC;
+ nsecs -= secs * NSECS_PER_SEC;
+ usecs = nsecs / NSECS_PER_USEC;
+ printf("%5lu.%06lu: ", secs, usecs);
+ }
+
+ if (PRINT_FIELD(EVNAME)) {
+ if (attr->type == PERF_TYPE_TRACEPOINT) {
+ type = trace_parse_common_type(sample->raw_data);
+ event = trace_find_event(type);
+ if (event)
+ evname = event->name;
+ } else
+ evname = __event_name(attr->type, attr->config);
+
+ printf("%s: ", evname ? evname : "(unknown)");
+ }
+}
+
+static void process_event(union perf_event *event __unused,
+ struct perf_sample *sample,
+ struct perf_session *session,
+ struct thread *thread)
+{
+ struct perf_event_attr *attr;
+ struct perf_evsel *evsel;
+
+ evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+ if (evsel == NULL) {
+ pr_err("Invalid data. Contains samples with id not in "
+ "its header!\n");
+ return;
+ }
+ attr = &evsel->attr;
+
+ if (output_fields[attr->type] == 0)
+ return;
+
+ if (perf_session__check_attr(session, attr) < 0)
+ return;
+
+ print_sample_start(sample, thread, attr);
+
+ if (PRINT_FIELD(TRACE))
+ print_trace_event(sample->cpu, sample->raw_data,
+ sample->raw_size);
+
+ if (PRINT_FIELD(SYM)) {
+ if (!symbol_conf.use_callchain)
+ printf(" ");
+ else
+ printf("\n");
+ perf_session__print_symbols(event, sample, session);
+ }
+
+ printf("\n");
+}
static int default_start_script(const char *script __unused,
int argc __unused,
@@ -40,7 +219,7 @@ static int default_generate_script(const char *outfile __unused)
static struct scripting_ops default_scripting_ops = {
.start_script = default_start_script,
.stop_script = default_stop_script,
- .process_event = print_event,
+ .process_event = process_event,
.generate_script = default_generate_script,
};
@@ -75,26 +254,17 @@ static int process_sample_event(union perf_event *event,
return -1;
}
- if (session->sample_type & PERF_SAMPLE_RAW) {
- if (debug_mode) {
- if (sample->time < last_timestamp) {
- pr_err("Samples misordered, previous: %" PRIu64
- " this: %" PRIu64 "\n", last_timestamp,
- sample->time);
- nr_unordered++;
- }
- last_timestamp = sample->time;
- return 0;
+ if (debug_mode) {
+ if (sample->time < last_timestamp) {
+ pr_err("Samples misordered, previous: %" PRIu64
+ " this: %" PRIu64 "\n", last_timestamp,
+ sample->time);
+ nr_unordered++;
}
- /*
- * FIXME: better resolve from pid from the struct trace_entry
- * field, although it should be the same than this perf
- * event pid
- */
- scripting_ops->process_event(sample->cpu, sample->raw_data,
- sample->raw_size,
- sample->time, thread->comm);
+ last_timestamp = sample->time;
+ return 0;
}
+ scripting_ops->process_event(event, sample, session, thread);
session->hists.stats.total_period += sample->period;
return 0;
@@ -102,7 +272,10 @@ static int process_sample_event(union perf_event *event,
static struct perf_event_ops event_ops = {
.sample = process_sample_event,
+ .mmap = perf_event__process_mmap,
.comm = perf_event__process_comm,
+ .exit = perf_event__process_task,
+ .fork = perf_event__process_task,
.attr = perf_event__process_attr,
.event_type = perf_event__process_event_type,
.tracing_data = perf_event__process_tracing_data,
@@ -280,6 +453,68 @@ static int parse_scriptname(const struct option *opt __used,
return 0;
}
+static int parse_output_fields(const struct option *opt __used,
+ const char *arg, int unset __used)
+{
+ char *tok;
+ int i, imax = sizeof(all_output_options) / sizeof(struct output_option);
+ int rc = 0;
+ char *str = strdup(arg);
+ int type = -1;
+
+ if (!str)
+ return -ENOMEM;
+
+ tok = strtok(str, ":");
+ if (!tok) {
+ fprintf(stderr,
+ "Invalid field string - not prepended with type.");
+ return -EINVAL;
+ }
+
+ /* first word should state which event type user
+ * is specifying the fields
+ */
+ if (!strcmp(tok, "hw"))
+ type = PERF_TYPE_HARDWARE;
+ else if (!strcmp(tok, "sw"))
+ type = PERF_TYPE_SOFTWARE;
+ else if (!strcmp(tok, "trace"))
+ type = PERF_TYPE_TRACEPOINT;
+ else {
+ fprintf(stderr, "Invalid event type in field string.");
+ return -EINVAL;
+ }
+
+ output_fields[type] = 0;
+ while (1) {
+ tok = strtok(NULL, ",");
+ if (!tok)
+ break;
+ for (i = 0; i < imax; ++i) {
+ if (strcmp(tok, all_output_options[i].str) == 0) {
+ output_fields[type] |= all_output_options[i].field;
+ break;
+ }
+ }
+ if (i == imax) {
+ fprintf(stderr, "Invalid field requested.");
+ rc = -EINVAL;
+ break;
+ }
+ }
+
+ if (output_fields[type] == 0) {
+ pr_debug("No fields requested for %s type. "
+ "Events will not be displayed\n", event_type(type));
+ }
+
+ output_set_by_user = true;
+
+ free(str);
+ return rc;
+}
+
/* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */
static int is_directory(const char *base_path, const struct dirent *dent)
{
@@ -592,6 +827,17 @@ static const struct option options[] = {
"input file name"),
OPT_BOOLEAN('d', "debug-mode", &debug_mode,
"do various checks like samples ordering and lost events"),
+ OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
+ "file", "vmlinux pathname"),
+ OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
+ "file", "kallsyms pathname"),
+ OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
+ "When printing symbols do not display call chain"),
+ OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
+ "Look for files with symbols relative to this directory"),
+ OPT_CALLBACK('f', "fields", NULL, "str",
+ "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace. Fields: comm,tid,pid,time,cpu,event,trace,sym",
+ parse_output_fields),
OPT_END()
};
@@ -772,14 +1018,22 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
if (session == NULL)
return -ENOMEM;
- if (strcmp(input_name, "-") &&
- !perf_session__has_traces(session, "record -R"))
- return -EINVAL;
+ if (!no_callchain)
+ symbol_conf.use_callchain = true;
+ else
+ symbol_conf.use_callchain = false;
if (generate_script_lang) {
struct stat perf_stat;
+ int input;
+
+ if (output_set_by_user) {
+ fprintf(stderr,
+ "custom fields not supported for generated scripts");
+ return -1;
+ }
- int input = open(input_name, O_RDONLY);
+ input = open(input_name, O_RDONLY);
if (input < 0) {
perror("failed to open file");
exit(-1);
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 21c0252..e2109f9 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -333,6 +333,12 @@ static int run_perf_stat(int argc __used, const char **argv)
}
}
+ if (perf_evlist__set_filters(evsel_list)) {
+ error("failed to set filter with %d (%s)\n", errno,
+ strerror(errno));
+ return -1;
+ }
+
/*
* Enable counters and exec the command:
*/
@@ -634,6 +640,8 @@ static const struct option options[] = {
OPT_CALLBACK('e', "event", &evsel_list, "event",
"event selector. use 'perf list' to list available events",
parse_events),
+ OPT_CALLBACK(0, "filter", &evsel_list, "filter",
+ "event filter", parse_filter),
OPT_BOOLEAN('i', "no-inherit", &no_inherit,
"child tasks do not inherit counters"),
OPT_INTEGER('p', "pid", &target_pid,
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 80c9e06..70f1075 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -152,7 +152,7 @@ static int parse_source(struct sym_entry *syme)
/*
* We can't annotate with just /proc/kallsyms
*/
- if (map->dso->origin == DSO__ORIG_KERNEL) {
+ if (map->dso->symtab_type == SYMTAB__KALLSYMS) {
pr_err("Can't annotate %s: No vmlinux file was found in the "
"path\n", sym->name);
sleep(1);
@@ -515,24 +515,25 @@ static void handle_keypress(struct perf_session *session, int c)
break;
case 'E':
if (top.evlist->nr_entries > 1) {
+ int counter;
fprintf(stderr, "\nAvailable events:");
list_for_each_entry(top.sym_evsel, &top.evlist->entries, node)
fprintf(stderr, "\n\t%d %s", top.sym_evsel->idx, event_name(top.sym_evsel));
- prompt_integer(&top.sym_counter, "Enter details event counter");
+ prompt_integer(&counter, "Enter details event counter");
- if (top.sym_counter >= top.evlist->nr_entries) {
+ if (counter >= top.evlist->nr_entries) {
top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node);
- top.sym_counter = 0;
fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top.sym_evsel));
sleep(1);
break;
}
list_for_each_entry(top.sym_evsel, &top.evlist->entries, node)
- if (top.sym_evsel->idx == top.sym_counter)
+ if (top.sym_evsel->idx == counter)
break;
- } else top.sym_counter = 0;
+ } else
+ top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node);
break;
case 'f':
prompt_integer(&top.count_filter, "Enter display event count filter");
@@ -675,7 +676,7 @@ static int symbol_filter(struct map *map, struct symbol *sym)
for (i = 0; skip_symbols[i]; i++) {
if (!strcmp(skip_symbols[i], name)) {
- syme->skip = 1;
+ sym->ignore = true;
break;
}
}
@@ -768,7 +769,7 @@ static void perf_event__process_sample(const union perf_event *event,
struct symbol *sym = sym_entry__symbol(top.sym_filter_entry);
pr_err("Can't annotate %s", sym->name);
- if (top.sym_filter_entry->map->dso->origin == DSO__ORIG_KERNEL) {
+ if (top.sym_filter_entry->map->dso->symtab_type == SYMTAB__KALLSYMS) {
pr_err(": No vmlinux file was found in the path:\n");
machine__fprintf_vmlinux_path(machine, stderr);
} else
@@ -778,10 +779,9 @@ static void perf_event__process_sample(const union perf_event *event,
}
syme = symbol__priv(al.sym);
- if (!syme->skip) {
+ if (!al.sym->ignore) {
struct perf_evsel *evsel;
- syme->origin = origin;
evsel = perf_evlist__id2evsel(top.evlist, sample->id);
assert(evsel != NULL);
syme->count[evsel->idx]++;
diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index c7798c7..4702e24 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -19,6 +19,7 @@ extern int cmd_bench(int argc, const char **argv, const char *prefix);
extern int cmd_buildid_cache(int argc, const char **argv, const char *prefix);
extern int cmd_buildid_list(int argc, const char **argv, const char *prefix);
extern int cmd_diff(int argc, const char **argv, const char *prefix);
+extern int cmd_evlist(int argc, const char **argv, const char *prefix);
extern int cmd_help(int argc, const char **argv, const char *prefix);
extern int cmd_sched(int argc, const char **argv, const char *prefix);
extern int cmd_list(int argc, const char **argv, const char *prefix);
diff --git a/tools/perf/command-list.txt b/tools/perf/command-list.txt
index 16b5088..d695fe4 100644
--- a/tools/perf/command-list.txt
+++ b/tools/perf/command-list.txt
@@ -8,6 +8,7 @@ perf-bench mainporcelain common
perf-buildid-cache mainporcelain common
perf-buildid-list mainporcelain common
perf-diff mainporcelain common
+perf-evlist mainporcelain common
perf-inject mainporcelain common
perf-list mainporcelain common
perf-sched mainporcelain common
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 595d0f4..ec635b7 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -313,6 +313,7 @@ static void handle_internal_command(int argc, const char **argv)
{ "buildid-cache", cmd_buildid_cache, 0 },
{ "buildid-list", cmd_buildid_list, 0 },
{ "diff", cmd_diff, 0 },
+ { "evlist", cmd_evlist, 0 },
{ "help", cmd_help, 0 },
{ "list", cmd_list, 0 },
{ "record", cmd_record, 0 },
diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index 97d7656..26d4d3f 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -23,10 +23,10 @@ if test -d ../../.git -o -f ../../.git &&
then
VN=$(echo "$VN" | sed -e 's/-/./g');
else
- eval `grep '^VERSION\s*=' ../../Makefile|tr -d ' '`
- eval `grep '^PATCHLEVEL\s*=' ../../Makefile|tr -d ' '`
- eval `grep '^SUBLEVEL\s*=' ../../Makefile|tr -d ' '`
- eval `grep '^EXTRAVERSION\s*=' ../../Makefile|tr -d ' '`
+ eval $(grep '^VERSION[[:space:]]*=' ../../Makefile|tr -d ' ')
+ eval $(grep '^PATCHLEVEL[[:space:]]*=' ../../Makefile|tr -d ' ')
+ eval $(grep '^SUBLEVEL[[:space:]]*=' ../../Makefile|tr -d ' ')
+ eval $(grep '^EXTRAVERSION[[:space:]]*=' ../../Makefile|tr -d ' ')
VN="${VERSION}.${PATCHLEVEL}.${SUBLEVEL}${EXTRAVERSION}"
fi
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 0d0830c..e01af2b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -294,7 +294,7 @@ fallback:
free_filename = false;
}
- if (dso->origin == DSO__ORIG_KERNEL) {
+ if (dso->symtab_type == SYMTAB__KALLSYMS) {
char bf[BUILD_ID_SIZE * 2 + 16] = " with build id ";
char *build_id_msg = NULL;
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 54a7e26..952b4ae 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -263,6 +263,28 @@ static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result)
return name;
}
+const char *event_type(int type)
+{
+ switch (type) {
+ case PERF_TYPE_HARDWARE:
+ return "hardware";
+
+ case PERF_TYPE_SOFTWARE:
+ return "software";
+
+ case PERF_TYPE_TRACEPOINT:
+ return "tracepoint";
+
+ case PERF_TYPE_HW_CACHE:
+ return "hardware-cache";
+
+ default:
+ break;
+ }
+
+ return "unknown";
+}
+
const char *event_name(struct perf_evsel *evsel)
{
u64 config = evsel->attr.config;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 212f88e..746d3fc 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -20,6 +20,7 @@ struct tracepoint_path {
extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
extern bool have_tracepoints(struct list_head *evlist);
+const char *event_type(int type);
const char *event_name(struct perf_evsel *event);
extern const char *__event_name(int type, u64 config);
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 9368081..6214272 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -245,9 +245,10 @@ static inline struct event *find_cache_event(int type)
return event;
}
-static void perl_process_event(int cpu, void *data,
- int size __unused,
- unsigned long long nsecs, char *comm)
+static void perl_process_event(union perf_event *pevent __unused,
+ struct perf_sample *sample,
+ struct perf_session *session __unused,
+ struct thread *thread)
{
struct format_field *field;
static char handler[256];
@@ -256,6 +257,10 @@ static void perl_process_event(int cpu, void *data,
struct event *event;
int type;
int pid;
+ int cpu = sample->cpu;
+ void *data = sample->raw_data;
+ unsigned long long nsecs = sample->time;
+ char *comm = thread->comm;
dSP;
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 2040b85..1b85d60 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -204,9 +204,10 @@ static inline struct event *find_cache_event(int type)
return event;
}
-static void python_process_event(int cpu, void *data,
- int size __unused,
- unsigned long long nsecs, char *comm)
+static void python_process_event(union perf_event *pevent __unused,
+ struct perf_sample *sample,
+ struct perf_session *session __unused,
+ struct thread *thread)
{
PyObject *handler, *retval, *context, *t, *obj, *dict = NULL;
static char handler_name[256];
@@ -217,6 +218,10 @@ static void python_process_event(int cpu, void *data,
unsigned n = 0;
int type;
int pid;
+ int cpu = sample->cpu;
+ void *data = sample->raw_data;
+ unsigned long long nsecs = sample->time;
+ char *comm = thread->comm;
t = PyTuple_New(MAX_FIELDS);
if (!t)
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index f26639f..c68cf40 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1134,3 +1134,64 @@ size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
return ret;
}
+
+void perf_session__print_symbols(union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_session *session)
+{
+ struct addr_location al;
+ const char *symname, *dsoname;
+ struct callchain_cursor *cursor = &session->callchain_cursor;
+ struct callchain_cursor_node *node;
+
+ if (perf_event__preprocess_sample(event, session, &al, sample,
+ NULL) < 0) {
+ error("problem processing %d event, skipping it.\n",
+ event->header.type);
+ return;
+ }
+
+ if (symbol_conf.use_callchain && sample->callchain) {
+
+ if (perf_session__resolve_callchain(session, al.thread,
+ sample->callchain, NULL) != 0) {
+ if (verbose)
+ error("Failed to resolve callchain. Skipping\n");
+ return;
+ }
+ callchain_cursor_commit(cursor);
+
+ while (1) {
+ node = callchain_cursor_current(cursor);
+ if (!node)
+ break;
+
+ if (node->sym && node->sym->name)
+ symname = node->sym->name;
+ else
+ symname = "";
+
+ if (node->map && node->map->dso && node->map->dso->name)
+ dsoname = node->map->dso->name;
+ else
+ dsoname = "";
+
+ printf("\t%16" PRIx64 " %s (%s)\n", node->ip, symname, dsoname);
+
+ callchain_cursor_advance(cursor);
+ }
+
+ } else {
+ if (al.sym && al.sym->name)
+ symname = al.sym->name;
+ else
+ symname = "";
+
+ if (al.map && al.map->dso && al.map->dso->name)
+ dsoname = al.map->dso->name;
+ else
+ dsoname = "";
+
+ printf("%16" PRIx64 " %s (%s)", al.addr, symname, dsoname);
+ }
+}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index b5b148b..0b3c9af 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -159,4 +159,8 @@ static inline int perf_session__parse_sample(struct perf_session *session,
session->sample_id_all, sample);
}
+void perf_session__print_symbols(union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_session *session);
+
#endif /* __PERF_SESSION_H */
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 00014e3..651dbfe 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -207,7 +207,7 @@ struct dso *dso__new(const char *name)
dso__set_short_name(self, self->name);
for (i = 0; i < MAP__NR_TYPES; ++i)
self->symbols[i] = self->symbol_names[i] = RB_ROOT;
- self->origin = DSO__ORIG_NOT_FOUND;
+ self->symtab_type = SYMTAB__NOT_FOUND;
self->loaded = 0;
self->sorted_by_name = 0;
self->has_build_id = 0;
@@ -680,9 +680,9 @@ int dso__load_kallsyms(struct dso *self, const char *filename,
return -1;
if (self->kernel == DSO_TYPE_GUEST_KERNEL)
- self->origin = DSO__ORIG_GUEST_KERNEL;
+ self->symtab_type = SYMTAB__GUEST_KALLSYMS;
else
- self->origin = DSO__ORIG_KERNEL;
+ self->symtab_type = SYMTAB__KALLSYMS;
return dso__split_kallsyms(self, map, filter);
}
@@ -1204,7 +1204,7 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name,
}
curr_map->map_ip = identity__map_ip;
curr_map->unmap_ip = identity__map_ip;
- curr_dso->origin = self->origin;
+ curr_dso->symtab_type = self->symtab_type;
map_groups__insert(kmap->kmaps, curr_map);
dsos__add(&self->node, curr_dso);
dso__set_loaded(curr_dso, map->type);
@@ -1430,21 +1430,21 @@ out:
char dso__symtab_origin(const struct dso *self)
{
static const char origin[] = {
- [DSO__ORIG_KERNEL] = 'k',
- [DSO__ORIG_JAVA_JIT] = 'j',
- [DSO__ORIG_BUILD_ID_CACHE] = 'B',
- [DSO__ORIG_FEDORA] = 'f',
- [DSO__ORIG_UBUNTU] = 'u',
- [DSO__ORIG_BUILDID] = 'b',
- [DSO__ORIG_DSO] = 'd',
- [DSO__ORIG_KMODULE] = 'K',
- [DSO__ORIG_GUEST_KERNEL] = 'g',
- [DSO__ORIG_GUEST_KMODULE] = 'G',
+ [SYMTAB__KALLSYMS] = 'k',
+ [SYMTAB__JAVA_JIT] = 'j',
+ [SYMTAB__BUILD_ID_CACHE] = 'B',
+ [SYMTAB__FEDORA_DEBUGINFO] = 'f',
+ [SYMTAB__UBUNTU_DEBUGINFO] = 'u',
+ [SYMTAB__BUILDID_DEBUGINFO] = 'b',
+ [SYMTAB__SYSTEM_PATH_DSO] = 'd',
+ [SYMTAB__SYSTEM_PATH_KMODULE] = 'K',
+ [SYMTAB__GUEST_KALLSYMS] = 'g',
+ [SYMTAB__GUEST_KMODULE] = 'G',
};
- if (self == NULL || self->origin == DSO__ORIG_NOT_FOUND)
+ if (self == NULL || self->symtab_type == SYMTAB__NOT_FOUND)
return '!';
- return origin[self->origin];
+ return origin[self->symtab_type];
}
int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
@@ -1477,8 +1477,8 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
if (strncmp(self->name, "/tmp/perf-", 10) == 0) {
ret = dso__load_perf_map(self, map, filter);
- self->origin = ret > 0 ? DSO__ORIG_JAVA_JIT :
- DSO__ORIG_NOT_FOUND;
+ self->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT :
+ SYMTAB__NOT_FOUND;
return ret;
}
@@ -1486,26 +1486,26 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
* On the first pass, only load images if they have a full symtab.
* Failing that, do a second pass where we accept .dynsym also
*/
- for (self->origin = DSO__ORIG_BUILD_ID_CACHE, want_symtab = 1;
- self->origin != DSO__ORIG_NOT_FOUND;
- self->origin++) {
- switch (self->origin) {
- case DSO__ORIG_BUILD_ID_CACHE:
+ for (self->symtab_type = SYMTAB__BUILD_ID_CACHE, want_symtab = 1;
+ self->symtab_type != SYMTAB__NOT_FOUND;
+ self->symtab_type++) {
+ switch (self->symtab_type) {
+ case SYMTAB__BUILD_ID_CACHE:
/* skip the locally configured cache if a symfs is given */
if (symbol_conf.symfs[0] ||
(dso__build_id_filename(self, name, size) == NULL)) {
continue;
}
break;
- case DSO__ORIG_FEDORA:
+ case SYMTAB__FEDORA_DEBUGINFO:
snprintf(name, size, "%s/usr/lib/debug%s.debug",
symbol_conf.symfs, self->long_name);
break;
- case DSO__ORIG_UBUNTU:
+ case SYMTAB__UBUNTU_DEBUGINFO:
snprintf(name, size, "%s/usr/lib/debug%s",
symbol_conf.symfs, self->long_name);
break;
- case DSO__ORIG_BUILDID: {
+ case SYMTAB__BUILDID_DEBUGINFO: {
char build_id_hex[BUILD_ID_SIZE * 2 + 1];
if (!self->has_build_id)
@@ -1519,11 +1519,11 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
symbol_conf.symfs, build_id_hex, build_id_hex + 2);
}
break;
- case DSO__ORIG_DSO:
+ case SYMTAB__SYSTEM_PATH_DSO:
snprintf(name, size, "%s%s",
symbol_conf.symfs, self->long_name);
break;
- case DSO__ORIG_GUEST_KMODULE:
+ case SYMTAB__GUEST_KMODULE:
if (map->groups && machine)
root_dir = machine->root_dir;
else
@@ -1532,7 +1532,7 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
root_dir, self->long_name);
break;
- case DSO__ORIG_KMODULE:
+ case SYMTAB__SYSTEM_PATH_KMODULE:
snprintf(name, size, "%s%s", symbol_conf.symfs,
self->long_name);
break;
@@ -1544,7 +1544,7 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
*/
if (want_symtab) {
want_symtab = 0;
- self->origin = DSO__ORIG_BUILD_ID_CACHE;
+ self->symtab_type = SYMTAB__BUILD_ID_CACHE;
} else
continue;
}
@@ -1757,9 +1757,9 @@ struct map *machine__new_module(struct machine *self, u64 start,
return NULL;
if (machine__is_host(self))
- dso->origin = DSO__ORIG_KMODULE;
+ dso->symtab_type = SYMTAB__SYSTEM_PATH_KMODULE;
else
- dso->origin = DSO__ORIG_GUEST_KMODULE;
+ dso->symtab_type = SYMTAB__GUEST_KMODULE;
map_groups__insert(&self->kmaps, map);
return map;
}
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 4d7ed09..713b0b4 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -48,12 +48,17 @@ char *strxfrchar(char *s, char from, char to);
#define BUILD_ID_SIZE 20
+/** struct symbol - symtab entry
+ *
+ * @ignore - resolvable but tools ignore it (e.g. idle routines)
+ */
struct symbol {
struct rb_node rb_node;
u64 start;
u64 end;
u16 namelen;
u8 binding;
+ bool ignore;
char name[0];
};
@@ -137,7 +142,7 @@ struct dso {
u8 annotate_warned:1;
u8 sname_alloc:1;
u8 lname_alloc:1;
- unsigned char origin;
+ unsigned char symtab_type;
u8 sorted_by_name;
u8 loaded;
u8 build_id[BUILD_ID_SIZE];
@@ -188,18 +193,18 @@ size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp);
size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
-enum dso_origin {
- DSO__ORIG_KERNEL = 0,
- DSO__ORIG_GUEST_KERNEL,
- DSO__ORIG_JAVA_JIT,
- DSO__ORIG_BUILD_ID_CACHE,
- DSO__ORIG_FEDORA,
- DSO__ORIG_UBUNTU,
- DSO__ORIG_BUILDID,
- DSO__ORIG_DSO,
- DSO__ORIG_GUEST_KMODULE,
- DSO__ORIG_KMODULE,
- DSO__ORIG_NOT_FOUND,
+enum symtab_type {
+ SYMTAB__KALLSYMS = 0,
+ SYMTAB__GUEST_KALLSYMS,
+ SYMTAB__JAVA_JIT,
+ SYMTAB__BUILD_ID_CACHE,
+ SYMTAB__FEDORA_DEBUGINFO,
+ SYMTAB__UBUNTU_DEBUGINFO,
+ SYMTAB__BUILDID_DEBUGINFO,
+ SYMTAB__SYSTEM_PATH_DSO,
+ SYMTAB__GUEST_KMODULE,
+ SYMTAB__SYSTEM_PATH_KMODULE,
+ SYMTAB__NOT_FOUND,
};
char dso__symtab_origin(const struct dso *self);
diff --git a/tools/perf/util/top.c b/tools/perf/util/top.c
index 75cfe4d..a11f607 100644
--- a/tools/perf/util/top.c
+++ b/tools/perf/util/top.c
@@ -171,7 +171,7 @@ float perf_top__decay_samples(struct perf_top *top, struct rb_root *root)
{
struct sym_entry *syme, *n;
float sum_ksamples = 0.0;
- int snap = !top->display_weighted ? top->sym_counter : 0, j;
+ int snap = !top->display_weighted ? top->sym_evsel->idx : 0, j;
/* Sort the active symbols */
pthread_mutex_lock(&top->active_symbols_lock);
@@ -184,9 +184,9 @@ float perf_top__decay_samples(struct perf_top *top, struct rb_root *root)
if (syme->snap_count != 0) {
if ((top->hide_user_symbols &&
- syme->origin == PERF_RECORD_MISC_USER) ||
+ syme->map->dso->kernel == DSO_TYPE_USER) ||
(top->hide_kernel_symbols &&
- syme->origin == PERF_RECORD_MISC_KERNEL)) {
+ syme->map->dso->kernel == DSO_TYPE_KERNEL)) {
perf_top__remove_active_sym(top, syme);
continue;
}
diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
index 96d1cb7..bfbf95b 100644
--- a/tools/perf/util/top.h
+++ b/tools/perf/util/top.h
@@ -16,8 +16,6 @@ struct sym_entry {
struct list_head node;
unsigned long snap_count;
double weight;
- int skip;
- u8 origin;
struct map *map;
unsigned long count[0];
};
@@ -41,7 +39,7 @@ struct perf_top {
u64 exact_samples;
u64 guest_us_samples, guest_kernel_samples;
int print_entries, count_filter, delay_secs;
- int display_weighted, freq, rb_entries, sym_counter;
+ int display_weighted, freq, rb_entries;
pid_t target_pid, target_tid;
bool hide_kernel_symbols, hide_user_symbols, zero;
const char *cpu_list;
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index d8e622d..0a7ed5b 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -2643,68 +2643,13 @@ static void print_lat_fmt(void *data, int size __unused)
printf(".");
if (lock_depth < 0)
- printf(".");
+ printf(". ");
else
- printf("%d", lock_depth);
+ printf("%d ", lock_depth);
}
-/* taken from Linux, written by Frederic Weisbecker */
-static void print_graph_cpu(int cpu)
-{
- int i;
- int log10_this = log10_cpu(cpu);
- int log10_all = log10_cpu(cpus);
-
-
- /*
- * Start with a space character - to make it stand out
- * to the right a bit when trace output is pasted into
- * email:
- */
- printf(" ");
-
- /*
- * Tricky - we space the CPU field according to the max
- * number of online CPUs. On a 2-cpu system it would take
- * a maximum of 1 digit - on a 128 cpu system it would
- * take up to 3 digits:
- */
- for (i = 0; i < log10_all - log10_this; i++)
- printf(" ");
-
- printf("%d) ", cpu);
-}
-
-#define TRACE_GRAPH_PROCINFO_LENGTH 14
#define TRACE_GRAPH_INDENT 2
-static void print_graph_proc(int pid, const char *comm)
-{
- /* sign + log10(MAX_INT) + '\0' */
- char pid_str[11];
- int spaces = 0;
- int len;
- int i;
-
- sprintf(pid_str, "%d", pid);
-
- /* 1 stands for the "-" character */
- len = strlen(comm) + strlen(pid_str) + 1;
-
- if (len < TRACE_GRAPH_PROCINFO_LENGTH)
- spaces = TRACE_GRAPH_PROCINFO_LENGTH - len;
-
- /* First spaces to align center */
- for (i = 0; i < spaces / 2; i++)
- printf(" ");
-
- printf("%s-%s", comm, pid_str);
-
- /* Last spaces to align center */
- for (i = 0; i < spaces - (spaces / 2); i++)
- printf(" ");
-}
-
static struct record *
get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func,
struct record *next)
@@ -2876,21 +2821,13 @@ static void print_graph_nested(struct event *event, void *data)
static void
pretty_print_func_ent(void *data, int size, struct event *event,
- int cpu, int pid, const char *comm,
- unsigned long secs, unsigned long usecs)
+ int cpu, int pid)
{
struct format_field *field;
struct record *rec;
void *copy_data;
unsigned long val;
- printf("%5lu.%06lu | ", secs, usecs);
-
- print_graph_cpu(cpu);
- print_graph_proc(pid, comm);
-
- printf(" | ");
-
if (latency_format) {
print_lat_fmt(data, size);
printf(" | ");
@@ -2923,22 +2860,13 @@ out_free:
}
static void
-pretty_print_func_ret(void *data, int size __unused, struct event *event,
- int cpu, int pid, const char *comm,
- unsigned long secs, unsigned long usecs)
+pretty_print_func_ret(void *data, int size __unused, struct event *event)
{
unsigned long long rettime, calltime;
unsigned long long duration, depth;
struct format_field *field;
int i;
- printf("%5lu.%06lu | ", secs, usecs);
-
- print_graph_cpu(cpu);
- print_graph_proc(pid, comm);
-
- printf(" | ");
-
if (latency_format) {
print_lat_fmt(data, size);
printf(" | ");
@@ -2976,31 +2904,21 @@ pretty_print_func_ret(void *data, int size __unused, struct event *event,
static void
pretty_print_func_graph(void *data, int size, struct event *event,
- int cpu, int pid, const char *comm,
- unsigned long secs, unsigned long usecs)
+ int cpu, int pid)
{
if (event->flags & EVENT_FL_ISFUNCENT)
- pretty_print_func_ent(data, size, event,
- cpu, pid, comm, secs, usecs);
+ pretty_print_func_ent(data, size, event, cpu, pid);
else if (event->flags & EVENT_FL_ISFUNCRET)
- pretty_print_func_ret(data, size, event,
- cpu, pid, comm, secs, usecs);
+ pretty_print_func_ret(data, size, event);
printf("\n");
}
-void print_event(int cpu, void *data, int size, unsigned long long nsecs,
- char *comm)
+void print_trace_event(int cpu, void *data, int size)
{
struct event *event;
- unsigned long secs;
- unsigned long usecs;
int type;
int pid;
- secs = nsecs / NSECS_PER_SEC;
- nsecs -= secs * NSECS_PER_SEC;
- usecs = nsecs / NSECS_PER_USEC;
-
type = trace_parse_common_type(data);
event = trace_find_event(type);
@@ -3012,17 +2930,10 @@ void print_event(int cpu, void *data, int size, unsigned long long nsecs,
pid = trace_parse_common_pid(data);
if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET))
- return pretty_print_func_graph(data, size, event, cpu,
- pid, comm, secs, usecs);
+ return pretty_print_func_graph(data, size, event, cpu, pid);
- if (latency_format) {
- printf("%8.8s-%-5d %3d",
- comm, pid, cpu);
+ if (latency_format)
print_lat_fmt(data, size);
- } else
- printf("%16s-%-5d [%03d]", comm, pid, cpu);
-
- printf(" %5lu.%06lu: %s: ", secs, usecs, event->name);
if (event->flags & EVENT_FL_FAILED) {
printf("EVENT '%s' FAILED TO PARSE\n",
@@ -3031,7 +2942,6 @@ void print_event(int cpu, void *data, int size, unsigned long long nsecs,
}
pretty_print(data, size, event);
- printf("\n");
}
static void print_fields(struct print_flag_sym *field)
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index f7af2fc..66f4b78 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -36,11 +36,10 @@ static int stop_script_unsupported(void)
return 0;
}
-static void process_event_unsupported(int cpu __unused,
- void *data __unused,
- int size __unused,
- unsigned long long nsecs __unused,
- char *comm __unused)
+static void process_event_unsupported(union perf_event *event __unused,
+ struct perf_sample *sample __unused,
+ struct perf_session *session __unused,
+ struct thread *thread __unused)
{
}
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index b5f12ca..b04da57 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -3,6 +3,7 @@
#include <stdbool.h>
#include "parse-events.h"
+#include "session.h"
#define __unused __attribute__((unused))
@@ -176,8 +177,7 @@ void print_printk(void);
int parse_ftrace_file(char *buf, unsigned long size);
int parse_event_file(char *buf, unsigned long size, char *sys);
-void print_event(int cpu, void *data, int size, unsigned long long nsecs,
- char *comm);
+void print_trace_event(int cpu, void *data, int size);
extern int file_bigendian;
extern int host_bigendian;
@@ -278,8 +278,10 @@ struct scripting_ops {
const char *name;
int (*start_script) (const char *script, int argc, const char **argv);
int (*stop_script) (void);
- void (*process_event) (int cpu, void *data, int size,
- unsigned long long nsecs, char *comm);
+ void (*process_event) (union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_session *session,
+ struct thread *thread);
int (*generate_script) (const char *outfile);
};
--
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