mirror of
https://github.com/torvalds/linux.git
synced 2024-11-12 15:11:50 +00:00
perf tools: Add support to new style format of kernel PMU event
Add new rules for kernel PMU event. Currently, the patch only want to handle the PMU event name as "a-b" and "a". event_pmu: PE_KERNEL_PMU_EVENT sep_dc | PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc PE_KERNEL_PMU_EVENT token is for cycles-ct/cycles-t/mem-loads/mem-stores. The prefix cycles is mixed up with cpu-cycles. loads and stores are mixed up with cache event So they have to be hardcode in lex. PE_PMU_EVENT_PRE and PE_PMU_EVENT_SUF tokens are for other PMU events. The lex looks generic identifier up in the table and return the matched token. If there is no match, generic PE_NAME token will be return. Using the rules, kernel PMU event could use new style format without // so you can use: perf record -e mem-loads ... instead of: perf record -e cpu/mem-loads/ Signed-off-by: Kan Liang <kan.liang@intel.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1412694532-23391-4-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
dcb4e1022b
commit
ba32a4511c
@ -51,6 +51,24 @@ static int str(yyscan_t scanner, int token)
|
||||
return token;
|
||||
}
|
||||
|
||||
static int pmu_str_check(yyscan_t scanner)
|
||||
{
|
||||
YYSTYPE *yylval = parse_events_get_lval(scanner);
|
||||
char *text = parse_events_get_text(scanner);
|
||||
|
||||
yylval->str = strdup(text);
|
||||
switch (perf_pmu__parse_check(text)) {
|
||||
case PMU_EVENT_SYMBOL_PREFIX:
|
||||
return PE_PMU_EVENT_PRE;
|
||||
case PMU_EVENT_SYMBOL_SUFFIX:
|
||||
return PE_PMU_EVENT_SUF;
|
||||
case PMU_EVENT_SYMBOL:
|
||||
return PE_KERNEL_PMU_EVENT;
|
||||
default:
|
||||
return PE_NAME;
|
||||
}
|
||||
}
|
||||
|
||||
static int sym(yyscan_t scanner, int type, int config)
|
||||
{
|
||||
YYSTYPE *yylval = parse_events_get_lval(scanner);
|
||||
@ -178,6 +196,16 @@ alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_AL
|
||||
emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
|
||||
dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
|
||||
|
||||
/*
|
||||
* We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
|
||||
* Because the prefix cycles is mixed up with cpu-cycles.
|
||||
* loads and stores are mixed up with cache event
|
||||
*/
|
||||
cycles-ct { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
|
||||
cycles-t { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
|
||||
mem-loads { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
|
||||
mem-stores { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
|
||||
|
||||
L1-dcache|l1-d|l1d|L1-data |
|
||||
L1-icache|l1-i|l1i|L1-instruction |
|
||||
LLC|L2 |
|
||||
@ -199,7 +227,7 @@ r{num_raw_hex} { return raw(yyscanner); }
|
||||
{num_hex} { return value(yyscanner, 16); }
|
||||
|
||||
{modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
|
||||
{name} { return str(yyscanner, PE_NAME); }
|
||||
{name} { return pmu_str_check(yyscanner); }
|
||||
"/" { BEGIN(config); return '/'; }
|
||||
- { return '-'; }
|
||||
, { BEGIN(event); return ','; }
|
||||
|
@ -47,6 +47,7 @@ static inc_group_count(struct list_head *list,
|
||||
%token PE_NAME_CACHE_TYPE PE_NAME_CACHE_OP_RESULT
|
||||
%token PE_PREFIX_MEM PE_PREFIX_RAW PE_PREFIX_GROUP
|
||||
%token PE_ERROR
|
||||
%token PE_PMU_EVENT_PRE PE_PMU_EVENT_SUF PE_KERNEL_PMU_EVENT
|
||||
%type <num> PE_VALUE
|
||||
%type <num> PE_VALUE_SYM_HW
|
||||
%type <num> PE_VALUE_SYM_SW
|
||||
@ -58,6 +59,7 @@ static inc_group_count(struct list_head *list,
|
||||
%type <str> PE_MODIFIER_EVENT
|
||||
%type <str> PE_MODIFIER_BP
|
||||
%type <str> PE_EVENT_NAME
|
||||
%type <str> PE_PMU_EVENT_PRE PE_PMU_EVENT_SUF PE_KERNEL_PMU_EVENT
|
||||
%type <num> value_sym
|
||||
%type <head> event_config
|
||||
%type <term> event_term
|
||||
@ -220,6 +222,44 @@ PE_NAME '/' '/'
|
||||
ABORT_ON(parse_events_add_pmu(list, &data->idx, $1, NULL));
|
||||
$$ = list;
|
||||
}
|
||||
|
|
||||
PE_KERNEL_PMU_EVENT sep_dc
|
||||
{
|
||||
struct parse_events_evlist *data = _data;
|
||||
struct list_head *head;
|
||||
struct parse_events_term *term;
|
||||
struct list_head *list;
|
||||
|
||||
ALLOC_LIST(head);
|
||||
ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
||||
$1, 1));
|
||||
list_add_tail(&term->list, head);
|
||||
|
||||
ALLOC_LIST(list);
|
||||
ABORT_ON(parse_events_add_pmu(list, &data->idx, "cpu", head));
|
||||
parse_events__free_terms(head);
|
||||
$$ = list;
|
||||
}
|
||||
|
|
||||
PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc
|
||||
{
|
||||
struct parse_events_evlist *data = _data;
|
||||
struct list_head *head;
|
||||
struct parse_events_term *term;
|
||||
struct list_head *list;
|
||||
char pmu_name[128];
|
||||
snprintf(&pmu_name, 128, "%s-%s", $1, $3);
|
||||
|
||||
ALLOC_LIST(head);
|
||||
ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
|
||||
&pmu_name, 1));
|
||||
list_add_tail(&term->list, head);
|
||||
|
||||
ALLOC_LIST(list);
|
||||
ABORT_ON(parse_events_add_pmu(list, &data->idx, "cpu", head));
|
||||
parse_events__free_terms(head);
|
||||
$$ = list;
|
||||
}
|
||||
|
||||
value_sym:
|
||||
PE_VALUE_SYM_HW
|
||||
|
Loading…
Reference in New Issue
Block a user