Commit 2a83dc7e authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Tooling fixes, plus a simple hardware-enablement patch for the Intel
  RAPL PMU (energy use measurement) on Haswell CPUs, which I hope is
  still fine at this stage"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf tools: Instead of redirecting flex output, use -o
  perf tools: Fix double free in perf test 21 (code-reading.c)
  perf stat: Initialize statistics correctly
  perf bench: Set more defaults in the 'numa' suite
  perf bench: Fix segfault at the end of an 'all' execution
  perf bench: Update manpage to mention numa and futex
  perf probe: Use dwarf_getcfi_elf() instead of dwarf_getcfi()
  perf probe: Fix to handle errors in line_range searching
  perf probe: Fix --line option behavior
  perf tools: Pick up libdw without explicit LIBDW_DIR
  MAINTAINERS: Change e-mail to kernel.org one
  perf callchains: Disable unwind libraries when libelf isn't found
  tools lib traceevent: Do not call warning() directly
  tools lib traceevent: Print event name when show warning if possible
  perf top: Fix documentation of invalid -s option
  perf/x86: Enable DRAM RAPL support on Intel Haswell
parents 17cf7db2 ad466db5
......@@ -6782,7 +6782,7 @@ PERFORMANCE EVENTS SUBSYSTEM
M: Peter Zijlstra <a.p.zijlstra@chello.nl>
M: Paul Mackerras <paulus@samba.org>
M: Ingo Molnar <mingo@redhat.com>
M: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
M: Arnaldo Carvalho de Melo <acme@kernel.org>
L: linux-kernel@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
S: Supported
......
......@@ -59,7 +59,7 @@
#define INTEL_RAPL_PKG 0x2 /* pseudo-encoding */
#define RAPL_IDX_RAM_NRG_STAT 2 /* DRAM */
#define INTEL_RAPL_RAM 0x3 /* pseudo-encoding */
#define RAPL_IDX_PP1_NRG_STAT 3 /* DRAM */
#define RAPL_IDX_PP1_NRG_STAT 3 /* gpu */
#define INTEL_RAPL_PP1 0x4 /* pseudo-encoding */
/* Clients have PP0, PKG */
......@@ -72,6 +72,12 @@
1<<RAPL_IDX_PKG_NRG_STAT|\
1<<RAPL_IDX_RAM_NRG_STAT)
/* Servers have PP0, PKG, RAM, PP1 */
#define RAPL_IDX_HSW (1<<RAPL_IDX_PP0_NRG_STAT|\
1<<RAPL_IDX_PKG_NRG_STAT|\
1<<RAPL_IDX_RAM_NRG_STAT|\
1<<RAPL_IDX_PP1_NRG_STAT)
/*
* event code: LSB 8 bits, passed in attr->config
* any other bit is reserved
......@@ -425,6 +431,24 @@ static struct attribute *rapl_events_cln_attr[] = {
NULL,
};
static struct attribute *rapl_events_hsw_attr[] = {
EVENT_PTR(rapl_cores),
EVENT_PTR(rapl_pkg),
EVENT_PTR(rapl_gpu),
EVENT_PTR(rapl_ram),
EVENT_PTR(rapl_cores_unit),
EVENT_PTR(rapl_pkg_unit),
EVENT_PTR(rapl_gpu_unit),
EVENT_PTR(rapl_ram_unit),
EVENT_PTR(rapl_cores_scale),
EVENT_PTR(rapl_pkg_scale),
EVENT_PTR(rapl_gpu_scale),
EVENT_PTR(rapl_ram_scale),
NULL,
};
static struct attribute_group rapl_pmu_events_group = {
.name = "events",
.attrs = NULL, /* patched at runtime */
......@@ -631,11 +655,14 @@ static int __init rapl_pmu_init(void)
switch (boot_cpu_data.x86_model) {
case 42: /* Sandy Bridge */
case 58: /* Ivy Bridge */
case 60: /* Haswell */
case 69: /* Haswell-Celeron */
rapl_cntr_mask = RAPL_IDX_CLN;
rapl_pmu_events_group.attrs = rapl_events_cln_attr;
break;
case 60: /* Haswell */
case 69: /* Haswell-Celeron */
rapl_cntr_mask = RAPL_IDX_HSW;
rapl_pmu_events_group.attrs = rapl_events_hsw_attr;
break;
case 45: /* Sandy Bridge-EP */
case 62: /* IvyTown */
rapl_cntr_mask = RAPL_IDX_SRV;
......
......@@ -50,6 +50,18 @@ static int show_warning = 1;
warning(fmt, ##__VA_ARGS__); \
} while (0)
#define do_warning_event(event, fmt, ...) \
do { \
if (!show_warning) \
continue; \
\
if (event) \
warning("[%s:%s] " fmt, event->system, \
event->name, ##__VA_ARGS__); \
else \
warning(fmt, ##__VA_ARGS__); \
} while (0)
static void init_input_buf(const char *buf, unsigned long long size)
{
input_buf = buf;
......@@ -1355,7 +1367,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
}
if (!field->type) {
do_warning("%s: no type found", __func__);
do_warning_event(event, "%s: no type found", __func__);
goto fail;
}
field->name = last_token;
......@@ -1402,7 +1414,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
free_token(token);
type = read_token(&token);
if (type == EVENT_NONE) {
do_warning("failed to find token");
do_warning_event(event, "failed to find token");
goto fail;
}
}
......@@ -1636,7 +1648,7 @@ process_cond(struct event_format *event, struct print_arg *top, char **tok)
right = alloc_arg();
if (!arg || !left || !right) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!", __func__);
/* arg will be freed at out_free */
free_arg(left);
free_arg(right);
......@@ -1686,7 +1698,7 @@ process_array(struct event_format *event, struct print_arg *top, char **tok)
arg = alloc_arg();
if (!arg) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!", __func__);
/* '*tok' is set to top->op.op. No need to free. */
*tok = NULL;
return EVENT_ERROR;
......@@ -1792,7 +1804,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
if (arg->type == PRINT_OP && !arg->op.left) {
/* handle single op */
if (token[1]) {
do_warning("bad op token %s", token);
do_warning_event(event, "bad op token %s", token);
goto out_free;
}
switch (token[0]) {
......@@ -1802,7 +1814,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
case '-':
break;
default:
do_warning("bad op token %s", token);
do_warning_event(event, "bad op token %s", token);
goto out_free;
}
......@@ -1888,7 +1900,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
char *new_atom;
if (left->type != PRINT_ATOM) {
do_warning("bad pointer type");
do_warning_event(event, "bad pointer type");
goto out_free;
}
new_atom = realloc(left->atom.atom,
......@@ -1930,7 +1942,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
type = process_array(event, arg, tok);
} else {
do_warning("unknown op '%s'", token);
do_warning_event(event, "unknown op '%s'", token);
event->flags |= EVENT_FL_FAILED;
/* the arg is now the left side */
goto out_free;
......@@ -1951,7 +1963,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
return type;
out_warn_free:
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!", __func__);
out_free:
free_token(token);
*tok = NULL;
......@@ -2385,7 +2397,7 @@ process_flags(struct event_format *event, struct print_arg *arg, char **tok)
field = alloc_arg();
if (!field) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!", __func__);
goto out_free;
}
......@@ -2438,7 +2450,7 @@ process_symbols(struct event_format *event, struct print_arg *arg, char **tok)
field = alloc_arg();
if (!field) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!", __func__);
goto out_free;
}
......@@ -2477,7 +2489,7 @@ process_hex(struct event_format *event, struct print_arg *arg, char **tok)
field = alloc_arg();
if (!field) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!", __func__);
goto out_free;
}
......@@ -2492,7 +2504,7 @@ process_hex(struct event_format *event, struct print_arg *arg, char **tok)
field = alloc_arg();
if (!field) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!", __func__);
*tok = NULL;
return EVENT_ERROR;
}
......@@ -2555,7 +2567,7 @@ process_dynamic_array(struct event_format *event, struct print_arg *arg, char **
free_token(token);
arg = alloc_arg();
if (!arg) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!", __func__);
*tok = NULL;
return EVENT_ERROR;
}
......@@ -2614,13 +2626,14 @@ process_paren(struct event_format *event, struct print_arg *arg, char **tok)
/* prevous must be an atom */
if (arg->type != PRINT_ATOM) {
do_warning("previous needed to be PRINT_ATOM");
do_warning_event(event, "previous needed to be PRINT_ATOM");
goto out_free;
}
item_arg = alloc_arg();
if (!item_arg) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!",
__func__);
goto out_free;
}
......@@ -2721,21 +2734,24 @@ process_func_handler(struct event_format *event, struct pevent_function_handler
for (i = 0; i < func->nr_args; i++) {
farg = alloc_arg();
if (!farg) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!",
__func__);
return EVENT_ERROR;
}
type = process_arg(event, farg, &token);
if (i < (func->nr_args - 1)) {
if (type != EVENT_DELIM || strcmp(token, ",") != 0) {
warning("Error: function '%s()' expects %d arguments but event %s only uses %d",
do_warning_event(event,
"Error: function '%s()' expects %d arguments but event %s only uses %d",
func->name, func->nr_args,
event->name, i + 1);
goto err;
}
} else {
if (type != EVENT_DELIM || strcmp(token, ")") != 0) {
warning("Error: function '%s()' only expects %d arguments but event %s has more",
do_warning_event(event,
"Error: function '%s()' only expects %d arguments but event %s has more",
func->name, func->nr_args, event->name);
goto err;
}
......@@ -2792,7 +2808,7 @@ process_function(struct event_format *event, struct print_arg *arg,
return process_func_handler(event, func, arg, tok);
}
do_warning("function %s not defined", token);
do_warning_event(event, "function %s not defined", token);
free_token(token);
return EVENT_ERROR;
}
......@@ -2878,7 +2894,7 @@ process_arg_token(struct event_format *event, struct print_arg *arg,
case EVENT_ERROR ... EVENT_NEWLINE:
default:
do_warning("unexpected type %d", type);
do_warning_event(event, "unexpected type %d", type);
return EVENT_ERROR;
}
*tok = token;
......@@ -2901,7 +2917,8 @@ static int event_read_print_args(struct event_format *event, struct print_arg **
arg = alloc_arg();
if (!arg) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!",
__func__);
return -1;
}
......@@ -3481,11 +3498,12 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
return val;
out_warning_op:
do_warning("%s: unknown op '%s'", __func__, arg->op.op);
do_warning_event(event, "%s: unknown op '%s'", __func__, arg->op.op);
return 0;
out_warning_field:
do_warning("%s: field %s not found", __func__, arg->field.name);
do_warning_event(event, "%s: field %s not found",
__func__, arg->field.name);
return 0;
}
......@@ -3591,7 +3609,8 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
}
str = malloc(len + 1);
if (!str) {
do_warning("%s: not enough memory!", __func__);
do_warning_event(event, "%s: not enough memory!",
__func__);
return;
}
memcpy(str, data + field->offset, len);
......@@ -3697,7 +3716,8 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
return;
out_warning_field:
do_warning("%s: field %s not found", __func__, arg->field.name);
do_warning_event(event, "%s: field %s not found",
__func__, arg->field.name);
}
static unsigned long long
......@@ -3742,14 +3762,16 @@ process_defined_func(struct trace_seq *s, void *data, int size,
trace_seq_terminate(&str);
string = malloc(sizeof(*string));
if (!string) {
do_warning("%s(%d): malloc str", __func__, __LINE__);
do_warning_event(event, "%s(%d): malloc str",
__func__, __LINE__);
goto out_free;
}
string->next = strings;
string->str = strdup(str.buffer);
if (!string->str) {
free(string);
do_warning("%s(%d): malloc str", __func__, __LINE__);
do_warning_event(event, "%s(%d): malloc str",
__func__, __LINE__);
goto out_free;
}
args[i] = (uintptr_t)string->str;
......@@ -3761,7 +3783,7 @@ process_defined_func(struct trace_seq *s, void *data, int size,
* Something went totally wrong, this is not
* an input error, something in this code broke.
*/
do_warning("Unexpected end of arguments\n");
do_warning_event(event, "Unexpected end of arguments\n");
goto out_free;
}
farg = farg->next;
......@@ -3811,12 +3833,12 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
if (!field) {
field = pevent_find_field(event, "buf");
if (!field) {
do_warning("can't find buffer field for binary printk");
do_warning_event(event, "can't find buffer field for binary printk");
return NULL;
}
ip_field = pevent_find_field(event, "ip");
if (!ip_field) {
do_warning("can't find ip field for binary printk");
do_warning_event(event, "can't find ip field for binary printk");
return NULL;
}
pevent->bprint_buf_field = field;
......@@ -3830,7 +3852,8 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
*/
args = alloc_arg();
if (!args) {
do_warning("%s(%d): not enough memory!", __func__, __LINE__);
do_warning_event(event, "%s(%d): not enough memory!",
__func__, __LINE__);
return NULL;
}
arg = args;
......@@ -3896,7 +3919,7 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
bptr += vsize;
arg = alloc_arg();
if (!arg) {
do_warning("%s(%d): not enough memory!",
do_warning_event(event, "%s(%d): not enough memory!",
__func__, __LINE__);
goto out_free;
}
......@@ -3919,7 +3942,7 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
case 's':
arg = alloc_arg();
if (!arg) {
do_warning("%s(%d): not enough memory!",
do_warning_event(event, "%s(%d): not enough memory!",
__func__, __LINE__);
goto out_free;
}
......@@ -3959,7 +3982,7 @@ get_bprint_format(void *data, int size __maybe_unused,
if (!field) {
field = pevent_find_field(event, "fmt");
if (!field) {
do_warning("can't find format field for binary printk");
do_warning_event(event, "can't find format field for binary printk");
return NULL;
}
pevent->bprint_fmt_field = field;
......@@ -4003,8 +4026,8 @@ static void print_mac_arg(struct trace_seq *s, int mac, void *data, int size,
arg->field.field =
pevent_find_any_field(event, arg->field.name);
if (!arg->field.field) {
do_warning("%s: field %s not found",
__func__, arg->field.name);
do_warning_event(event, "%s: field %s not found",
__func__, arg->field.name);
return;
}
}
......@@ -4176,7 +4199,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
case '*':
/* The argument is the length. */
if (!arg) {
do_warning("no argument match");
do_warning_event(event, "no argument match");
event->flags |= EVENT_FL_FAILED;
goto out_failed;
}
......@@ -4213,7 +4236,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
case 'X':
case 'u':
if (!arg) {
do_warning("no argument match");
do_warning_event(event, "no argument match");
event->flags |= EVENT_FL_FAILED;
goto out_failed;
}
......@@ -4223,7 +4246,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
/* should never happen */
if (len > 31) {
do_warning("bad format!");
do_warning_event(event, "bad format!");
event->flags |= EVENT_FL_FAILED;
len = 31;
}
......@@ -4290,13 +4313,13 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
trace_seq_printf(s, format, (long long)val);
break;
default:
do_warning("bad count (%d)", ls);
do_warning_event(event, "bad count (%d)", ls);
event->flags |= EVENT_FL_FAILED;
}
break;
case 's':
if (!arg) {
do_warning("no matching argument");
do_warning_event(event, "no matching argument");
event->flags |= EVENT_FL_FAILED;
goto out_failed;
}
......@@ -4306,7 +4329,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
/* should never happen */
if (len > 31) {
do_warning("bad format!");
do_warning_event(event, "bad format!");
event->flags |= EVENT_FL_FAILED;
len = 31;
}
......
......@@ -48,6 +48,12 @@ SUBSYSTEM
'mem'::
Memory access performance.
'numa'::
NUMA scheduling and MM benchmarks.
'futex'::
Futex stressing benchmarks.
'all'::
All benchmark subsystems.
......@@ -187,6 +193,22 @@ Show only the result with page faults before memset.
--no-prefault::
Show only the result without page faults before memset.
SUITES FOR 'numa'
~~~~~~~~~~~~~~~~~
*mem*::
Suite for evaluating NUMA workloads.
SUITES FOR 'futex'
~~~~~~~~~~~~~~~~~~
*hash*::
Suite for evaluating hash tables.
*wake*::
Suite for evaluating wake calls.
*requeue*::
Suite for evaluating requeue calls.
SEE ALSO
--------
linkperf:perf[1]
......@@ -87,7 +87,6 @@ Default is to monitor all CPUS.
--realtime=<priority>::
Collect data with this RT SCHED_FIFO priority.
-s <symbol>::
--sym-annotate=<symbol>::
Annotate this symbol.
......
......@@ -192,13 +192,13 @@ endif
export PERL_PATH
$(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(OUTPUT)util/parse-events-bison.c
$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c
$(QUIET_FLEX)$(FLEX) -o $@ --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) util/parse-events.l
$(OUTPUT)util/parse-events-bison.c: util/parse-events.y
$(QUIET_BISON)$(BISON) -v util/parse-events.y -d $(PARSER_DEBUG_BISON) -o $(OUTPUT)util/parse-events-bison.c -p parse_events_
$(OUTPUT)util/pmu-flex.c: util/pmu.l $(OUTPUT)util/pmu-bison.c
$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c
$(QUIET_FLEX)$(FLEX) -o $@ --header-file=$(OUTPUT)util/pmu-flex.h util/pmu.l
$(OUTPUT)util/pmu-bison.c: util/pmu.y
$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -p perf_pmu_
......
......@@ -1593,6 +1593,10 @@ static void init_params(struct params *p, const char *name, int argc, const char
p->data_rand_walk = true;
p->nr_loops = -1;
p->init_random = true;
p->mb_global_str = "1";
p->nr_proc = 1;
p->nr_threads = 1;
p->nr_secs = 5;
p->run_all = argc == 1;
}
......
......@@ -174,13 +174,20 @@ static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
{
memset(evsel->priv, 0, sizeof(struct perf_stat));
int i;
struct perf_stat *ps = evsel->priv;
for (i = 0; i < 3; i++)
init_stats(&ps->res_stats[i]);
}
static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
{
evsel->priv = zalloc(sizeof(struct perf_stat));
return evsel->priv == NULL ? -ENOMEM : 0;
if (evsel == NULL)
return -ENOMEM;
perf_evsel__reset_stat_priv(evsel);
return 0;
}
static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
......
......@@ -65,10 +65,9 @@ ifndef NO_LIBELF
ifdef LIBDW_DIR
LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
endif
FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
endif
# include ARCH specific config
......@@ -278,6 +277,8 @@ else
NO_LIBELF := 1
NO_DWARF := 1
NO_DEMANGLE := 1
NO_LIBUNWIND := 1
NO_LIBDW_DWARF_UNWIND := 1
else
msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
endif
......
......@@ -504,6 +504,7 @@ static int do_test_code_reading(bool try_kcore)
if (ret < 0) {
if (!excl_kernel) {
excl_kernel = true;
perf_evlist__set_maps(evlist, NULL, NULL);
perf_evlist__delete(evlist);
evlist = NULL;
continue;
......
......@@ -985,7 +985,7 @@ static int debuginfo__find_probes(struct debuginfo *dbg,
#if _ELFUTILS_PREREQ(0, 142)
/* Get the call frame information from this dwarf */
pf->cfi = dwarf_getcfi(dbg->dbg);
pf->cfi = dwarf_getcfi_elf(dwarf_getelf(dbg->dbg));
#endif
off = 0;
......@@ -1441,13 +1441,15 @@ static int line_range_walk_cb(const char *fname, int lineno,
void *data)
{
struct line_finder *lf = data;
int err;
if ((strtailcmp(fname, lf->fname) != 0) ||
(lf->lno_s > lineno || lf->lno_e < lineno))
return 0;
if (line_range_add_line(fname, lineno, lf->lr) < 0)
return -EINVAL;
err = line_range_add_line(fname, lineno, lf->lr);
if (err < 0 && err != -EEXIST)
return err;
return 0;
}
......@@ -1473,14 +1475,15 @@ static int find_line_range_by_line(Dwarf_Die *sp_die, struct line_finder *lf)
static int line_range_inline_cb(Dwarf_Die *in_die, void *data)
{
find_line_range_by_line(in_die, data);
int ret = find_line_range_by_line(in_die, data);
/*
* We have to check all instances of inlined function, because
* some execution paths can be optimized out depends on the
* function argument of instances
* function argument of instances. However, if an error occurs,
* it should be handled by the caller.
*/
return 0;