mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 05:34:00 +08:00
cd82a32e99
Adding pmu object which provides interface to pmu's sysfs event format definition located at: ${sysfs_mount}/bus/event_source/devices/${pmu}/format Following interface is exported: struct perf_pmu* perf_pmu__find(char *name); - this function returns pmu object, which is then passed as a handle to other interface functions int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr, struct list_head *head_terms); - this function configures perf_event_attr struct based on pmu's format definitions and config terms data, containined in head_terms list. Parser generator is used to retrive the pmu's format definition. The generated parser is part of the patch. Added makefile rule 'pmu-parser' to generate the parser code out of the bison/flex sources. Added builtin test 'Test perf pmu format parsing', which could be run like: perf test pmu Acked-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-errz96u1668gj9wlop1zhpht@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
94 lines
1.3 KiB
Plaintext
94 lines
1.3 KiB
Plaintext
|
|
%name-prefix "perf_pmu_"
|
|
%parse-param {struct list_head *format}
|
|
%parse-param {char *name}
|
|
|
|
%{
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/list.h>
|
|
#include <linux/bitmap.h>
|
|
#include <string.h>
|
|
#include "pmu.h"
|
|
|
|
extern int perf_pmu_lex (void);
|
|
|
|
#define ABORT_ON(val) \
|
|
do { \
|
|
if (val) \
|
|
YYABORT; \
|
|
} while (0)
|
|
|
|
%}
|
|
|
|
%token PP_CONFIG PP_CONFIG1 PP_CONFIG2
|
|
%token PP_VALUE PP_ERROR
|
|
%type <num> PP_VALUE
|
|
%type <bits> bit_term
|
|
%type <bits> bits
|
|
|
|
%union
|
|
{
|
|
unsigned long num;
|
|
DECLARE_BITMAP(bits, PERF_PMU_FORMAT_BITS);
|
|
}
|
|
|
|
%%
|
|
|
|
format:
|
|
format format_term
|
|
|
|
|
format_term
|
|
|
|
format_term:
|
|
PP_CONFIG ':' bits
|
|
{
|
|
ABORT_ON(perf_pmu__new_format(format, name,
|
|
PERF_PMU_FORMAT_VALUE_CONFIG,
|
|
$3));
|
|
}
|
|
|
|
|
PP_CONFIG1 ':' bits
|
|
{
|
|
ABORT_ON(perf_pmu__new_format(format, name,
|
|
PERF_PMU_FORMAT_VALUE_CONFIG1,
|
|
$3));
|
|
}
|
|
|
|
|
PP_CONFIG2 ':' bits
|
|
{
|
|
ABORT_ON(perf_pmu__new_format(format, name,
|
|
PERF_PMU_FORMAT_VALUE_CONFIG2,
|
|
$3));
|
|
}
|
|
|
|
bits:
|
|
bits ',' bit_term
|
|
{
|
|
bitmap_or($$, $1, $3, 64);
|
|
}
|
|
|
|
|
bit_term
|
|
{
|
|
memcpy($$, $1, sizeof($1));
|
|
}
|
|
|
|
bit_term:
|
|
PP_VALUE '-' PP_VALUE
|
|
{
|
|
perf_pmu__set_format($$, $1, $3);
|
|
}
|
|
|
|
|
PP_VALUE
|
|
{
|
|
perf_pmu__set_format($$, $1, 0);
|
|
}
|
|
|
|
%%
|
|
|
|
void perf_pmu_error(struct list_head *list __used,
|
|
char *name __used,
|
|
char const *msg __used)
|
|
{
|
|
}
|