diff options
| -rw-r--r-- | Documentation/perf_counter/builtin-record.c | 105 | ||||
| -rw-r--r-- | Documentation/perf_counter/builtin-stat.c | 76 | ||||
| -rw-r--r-- | Documentation/perf_counter/builtin-top.c | 67 | ||||
| -rw-r--r-- | Documentation/perf_counter/perf.h | 2 | ||||
| -rw-r--r-- | Documentation/perf_counter/util/parse-events.c | 120 | ||||
| -rw-r--r-- | Documentation/perf_counter/util/parse-events.h | 7 | ||||
| -rw-r--r-- | arch/powerpc/kernel/perf_counter.c | 6 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/perf_counter.c | 8 | ||||
| -rw-r--r-- | include/linux/perf_counter.h | 65 | ||||
| -rw-r--r-- | kernel/perf_counter.c | 14 |
10 files changed, 196 insertions, 274 deletions
diff --git a/Documentation/perf_counter/builtin-record.c b/Documentation/perf_counter/builtin-record.c index c22ea0c..130fd88 100644 --- a/Documentation/perf_counter/builtin-record.c +++ b/Documentation/perf_counter/builtin-record.c @@ -20,10 +20,10 @@ #define ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a)-1) #define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask)) -static long default_interval = 100000; -static long event_count[MAX_COUNTERS]; - static int fd[MAX_NR_CPUS][MAX_COUNTERS]; + +static long default_interval = 100000; + static int nr_cpus = 0; static unsigned int page_size; static unsigned int mmap_pages = 128; @@ -38,22 +38,44 @@ static int inherit = 1; static int force = 0; static int append_file = 0; -const unsigned int default_count[] = { - 1000000, - 1000000, - 10000, - 10000, - 1000000, - 10000, +static long samples; +static struct timeval last_read; +static struct timeval this_read; + +static __u64 bytes_written; + +static struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS]; + +static int nr_poll; +static int nr_cpu; + +struct mmap_event { + struct perf_event_header header; + __u32 pid; + __u32 tid; + __u64 start; + __u64 len; + __u64 pgoff; + char filename[PATH_MAX]; +}; + +struct comm_event { + struct perf_event_header header; + __u32 pid; + __u32 tid; + char comm[16]; }; + struct mmap_data { - int counter; - void *base; - unsigned int mask; - unsigned int prev; + int counter; + void *base; + unsigned int mask; + unsigned int prev; }; +static struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS]; + static unsigned int mmap_read_head(struct mmap_data *md) { struct perf_counter_mmap_page *pc = md->base; @@ -65,11 +87,6 @@ static unsigned int mmap_read_head(struct mmap_data *md) return head; } -static long samples; -static struct timeval last_read, this_read; - -static __u64 bytes_written; - static void mmap_read(struct mmap_data *md) { unsigned int head = mmap_read_head(md); @@ -157,29 +174,6 @@ static void sig_handler(int sig) done = 1; } -static struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS]; -static struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS]; - -static int nr_poll; -static int nr_cpu; - -struct mmap_event { - struct perf_event_header header; - __u32 pid; - __u32 tid; - __u64 start; - __u64 len; - __u64 pgoff; - char filename[PATH_MAX]; -}; - -struct comm_event { - struct perf_event_header header; - __u32 pid; - __u32 tid; - char comm[16]; -}; - static void pid_synthesize_comm_event(pid_t pid, int full) { struct comm_event comm_ev; @@ -341,24 +335,21 @@ static int group_fd; static void create_counter(int counter, int cpu, pid_t pid) { - struct perf_counter_attr attr; + struct perf_counter_attr *attr = attrs + counter; int track = 1; - memset(&attr, 0, sizeof(attr)); - attr.config = event_id[counter]; - attr.sample_period = event_count[counter]; - attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_PERIOD; + attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_PERIOD; if (freq) { - attr.freq = 1; - attr.sample_freq = freq; + attr->freq = 1; + attr->sample_freq = freq; } - attr.mmap = track; - attr.comm = track; - attr.inherit = (cpu < 0) && inherit; + attr->mmap = track; + attr->comm = track; + attr->inherit = (cpu < 0) && inherit; track = 0; /* only the first counter needs these */ - fd[nr_cpu][counter] = sys_perf_counter_open(&attr, pid, cpu, group_fd, 0); + fd[nr_cpu][counter] = sys_perf_counter_open(attr, pid, cpu, group_fd, 0); if (fd[nr_cpu][counter] < 0) { int err = errno; @@ -542,16 +533,14 @@ int cmd_record(int argc, const char **argv, const char *prefix) if (!argc && target_pid == -1 && !system_wide) usage_with_options(record_usage, options); - if (!nr_counters) { + if (!nr_counters) nr_counters = 1; - event_id[0] = 0; - } for (counter = 0; counter < nr_counters; counter++) { - if (event_count[counter]) + if (attrs[counter].sample_period) continue; - event_count[counter] = default_interval; + attrs[counter].sample_period = default_interval; } return __cmd_record(argc, argv); diff --git a/Documentation/perf_counter/builtin-stat.c b/Documentation/perf_counter/builtin-stat.c index 4fc0d80..9711e55 100644 --- a/Documentation/perf_counter/builtin-stat.c +++ b/Documentation/perf_counter/builtin-stat.c @@ -44,23 +44,22 @@ #include <sys/prctl.h> -static int system_wide = 0; -static int inherit = 1; +static struct perf_counter_attr default_attrs[MAX_COUNTERS] = { -static __u64 default_event_id[MAX_COUNTERS] = { - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK), - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CONTEXT_SWITCHES), - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_MIGRATIONS), - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS), + { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_TASK_CLOCK }, + { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_CONTEXT_SWITCHES }, + { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_CPU_MIGRATIONS }, + { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_PAGE_FAULTS }, - EID(PERF_TYPE_HARDWARE, PERF_COUNT_CPU_CYCLES), - EID(PERF_TYPE_HARDWARE, PERF_COUNT_INSTRUCTIONS), - EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_REFERENCES), - EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_MISSES), + { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_CPU_CYCLES }, + { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_INSTRUCTIONS }, + { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_CACHE_REFERENCES }, + { .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_CACHE_MISSES }, }; -static int default_interval = 100000; -static int event_count[MAX_COUNTERS]; +static int system_wide = 0; +static int inherit = 1; + static int fd[MAX_NR_CPUS][MAX_COUNTERS]; static int target_pid = -1; @@ -86,22 +85,16 @@ static __u64 walltime_nsecs; static void create_perfstat_counter(int counter) { - struct perf_counter_attr attr; - - memset(&attr, 0, sizeof(attr)); - attr.config = event_id[counter]; - attr.sample_type = 0; - attr.exclude_kernel = event_mask[counter] & EVENT_MASK_KERNEL; - attr.exclude_user = event_mask[counter] & EVENT_MASK_USER; + struct perf_counter_attr *attr = attrs + counter; if (scale) - attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | - PERF_FORMAT_TOTAL_TIME_RUNNING; + attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | + PERF_FORMAT_TOTAL_TIME_RUNNING; if (system_wide) { int cpu; for (cpu = 0; cpu < nr_cpus; cpu ++) { - fd[cpu][counter] = sys_perf_counter_open(&attr, -1, cpu, -1, 0); + fd[cpu][counter] = sys_perf_counter_open(attr, -1, cpu, -1, 0); if (fd[cpu][counter] < 0) { printf("perfstat error: syscall returned with %d (%s)\n", fd[cpu][counter], strerror(errno)); @@ -109,10 +102,10 @@ static void create_perfstat_counter(int counter) } } } else { - attr.inherit = inherit; - attr.disabled = 1; + attr->inherit = inherit; + attr->disabled = 1; - fd[0][counter] = sys_perf_counter_open(&attr, 0, -1, -1, 0); + fd[0][counter] = sys_perf_counter_open(attr, 0, -1, -1, 0); if (fd[0][counter] < 0) { printf("perfstat error: syscall returned with %d (%s)\n", fd[0][counter], strerror(errno)); @@ -126,9 +119,13 @@ static void create_perfstat_counter(int counter) */ static inline int nsec_counter(int counter) { - if (event_id[counter] == EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_CLOCK)) + if (attrs[counter].type != PERF_TYPE_SOFTWARE) + return 0; + + if (attrs[counter].config == PERF_COUNT_CPU_CLOCK) return 1; - if (event_id[counter] == EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK)) + + if (attrs[counter].config == PERF_COUNT_TASK_CLOCK) return 1; return 0; @@ -177,7 +174,8 @@ static void read_counter(int counter) /* * Save the full runtime - to allow normalization during printout: */ - if (event_id[counter] == EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK)) + if (attrs[counter].type == PERF_TYPE_SOFTWARE && + attrs[counter].config == PERF_COUNT_TASK_CLOCK) runtime_nsecs = count[0]; } @@ -203,8 +201,8 @@ static void print_counter(int counter) fprintf(stderr, " %14.6f %-20s", msecs, event_name(counter)); - if (event_id[counter] == - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK)) { + if (attrs[counter].type == PERF_TYPE_SOFTWARE && + attrs[counter].config == PERF_COUNT_TASK_CLOCK) { fprintf(stderr, " # %11.3f CPU utilization factor", (double)count[0] / (double)walltime_nsecs); @@ -300,8 +298,6 @@ static char events_help_msg[EVENTS_HELP_MAX]; static const struct option options[] = { OPT_CALLBACK('e', "event", NULL, "event", events_help_msg, parse_events), - OPT_INTEGER('c', "count", &default_interval, - "event period to sample"), OPT_BOOLEAN('i', "inherit", &inherit, "child tasks inherit counters"), OPT_INTEGER('p', "pid", &target_pid, @@ -315,27 +311,19 @@ static const struct option options[] = { int cmd_stat(int argc, const char **argv, const char *prefix) { - int counter; - page_size = sysconf(_SC_PAGE_SIZE); create_events_help(events_help_msg); - memcpy(event_id, default_event_id, sizeof(default_event_id)); + + memcpy(attrs, default_attrs, sizeof(attrs)); argc = parse_options(argc, argv, options, stat_usage, 0); if (!argc) usage_with_options(stat_usage, options); - if (!nr_counters) { + if (!nr_counters) nr_counters = 8; - } - - for (counter = 0; counter < nr_counters; counter++) { - if (event_count[counter]) - continue; - event_count[counter] = default_interval; - } nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); assert(nr_cpus <= MAX_NR_CPUS); assert(nr_cpus >= 0); diff --git a/Documentation/perf_counter/builtin-top.c b/Documentation/perf_counter/builtin-top.c index b2f480b5..98a6d53 100644 --- a/Documentation/perf_counter/builtin-top.c +++ b/Documentation/perf_counter/builtin-top.c @@ -48,22 +48,11 @@ #include <linux/unistd.h> #include <linux/types.h> -static int system_wide = 0; +static int fd[MAX_NR_CPUS][MAX_COUNTERS]; -static __u64 default_event_id[MAX_COUNTERS] = { - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK), - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CONTEXT_SWITCHES), - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_MIGRATIONS), - EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS), +static int system_wide = 0; - EID(PERF_TYPE_HARDWARE, PERF_COUNT_CPU_CYCLES), - EID(PERF_TYPE_HARDWARE, PERF_COUNT_INSTRUCTIONS), - EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_REFERENCES), - EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_MISSES), -}; -static int default_interval = 100000; -static int event_count[MAX_COUNTERS]; -static int fd[MAX_NR_CPUS][MAX_COUNTERS]; +static int default_interval = 100000; static __u64 count_filter = 5; static int print_entries = 15; @@ -85,15 +74,6 @@ static int delay_secs = 2; static int zero; static int dump_symtab; -static const unsigned int default_count[] = { - 1000000, - 1000000, - 10000, - 10000, - 1000000, - 10000, -}; - /* * Symbols */ @@ -112,7 +92,7 @@ struct sym_entry { struct sym_entry *sym_filter_entry; -struct dso *kernel_dso; +struct dso *kernel_dso; /* * Symbols will be added here in record_ip and will get out @@ -213,7 +193,7 @@ static void print_sym_table(void) 100.0 - (100.0*((samples_per_sec-ksamples_per_sec)/samples_per_sec))); if (nr_counters == 1) { - printf("%d", event_count[0]); + printf("%Ld", attrs[0].sample_period); if (freq) printf("Hz "); else @@ -421,10 +401,10 @@ static void process_event(uint64_t ip, int counter) } struct mmap_data { - int counter; - void *base; - unsigned int mask; - unsigned int prev; + int counter; + void *base; + unsigned int mask; + unsigned int prev; }; static unsigned int mmap_read_head(struct mmap_data *md) @@ -539,7 +519,7 @@ static struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS]; static int __cmd_top(void) { - struct perf_counter_attr attr; + struct perf_counter_attr *attr; pthread_t thread; int i, counter, group_fd, nr_poll = 0; unsigned int cpu; @@ -553,13 +533,12 @@ static int __cmd_top(void) if (target_pid == -1 && profile_cpu == -1) cpu = i; - memset(&attr, 0, sizeof(attr)); - attr.config = event_id[counter]; - attr.sample_period = event_count[counter]; - attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; - attr.freq = freq; + attr = attrs + counter; - fd[i][counter] = sys_perf_counter_open(&attr, target_pid, cpu, group_fd, 0); + attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; + attr->freq = freq; + + fd[i][counter] = sys_perf_counter_open(attr, target_pid, cpu, group_fd, 0); if (fd[i][counter] < 0) { int err = errno; @@ -670,7 +649,6 @@ int cmd_top(int argc, const char **argv, const char *prefix) page_size = sysconf(_SC_PAGE_SIZE); create_events_help(events_help_msg); - memcpy(event_id, default_event_id, sizeof(default_event_id)); argc = parse_options(argc, argv, options, top_usage, 0); if (argc) @@ -688,19 +666,22 @@ int cmd_top(int argc, const char **argv, const char *prefix) profile_cpu = -1; } - if (!nr_counters) { + if (!nr_counters) nr_counters = 1; - event_id[0] = 0; - } if (delay_secs < 1) delay_secs = 1; + parse_symbols(); + + /* + * Fill in the ones not specifically initialized via -c: + */ for (counter = 0; counter < nr_counters; counter++) { - if (event_count[counter]) + if (attrs[counter].sample_period) continue; - event_count[counter] = default_interval; + attrs[counter].sample_period = default_interval; } nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); @@ -710,7 +691,5 @@ int cmd_top(int argc, const char **argv, const char *prefix) if (target_pid != -1 || profile_cpu != -1) nr_cpus = 1; - parse_symbols(); - return __cmd_top(); } diff --git a/Documentation/perf_counter/perf.h b/Documentation/perf_counter/perf.h index 10622a4..af0a504 100644 --- a/Documentation/perf_counter/perf.h +++ b/Documentation/perf_counter/perf.h @@ -64,6 +64,4 @@ sys_perf_counter_open(struct perf_counter_attr *attr_uptr, #define MAX_COUNTERS 256 #define MAX_NR_CPUS 256 -#define EID(type, id) (((__u64)(type) << PERF_COUNTER_TYPE_SHIFT) | (id)) - #endif diff --git a/Documentation/perf_counter/util/parse-events.c b/Documentation/perf_counter/util/parse-events.c index 2fdfd1d..eb56bd9 100644 --- a/Documentation/perf_counter/util/parse-events.c +++ b/Documentation/perf_counter/util/parse-events.c @@ -6,37 +6,39 @@ #include "exec_cmd.h" #include "string.h" -int nr_counters; +int nr_counters; -__u64 event_id[MAX_COUNTERS] = { }; -int event_mask[MAX_COUNTERS]; +struct perf_counter_attr attrs[MAX_COUNTERS]; struct event_symbol { - __u64 event; - char *symbol; + __u8 type; + __u64 config; + char *symbol; }; +#define C(x, y) .type = PERF_TYPE_##x, .config = PERF_COUNT_##y + static struct event_symbol event_symbols[] = { - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CPU_CYCLES), "cpu-cycles", }, - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CPU_CYCLES), "cycles", }, - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_INSTRUCTIONS), "instructions", }, - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_REFERENCES), "cache-references", }, - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_MISSES), "cache-misses", }, - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_INSTRUCTIONS), "branch-instructions", }, - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_INSTRUCTIONS), "branches", }, - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_MISSES), "branch-misses", }, - {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BUS_CYCLES), "bus-cycles", }, - - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_CLOCK), "cpu-clock", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK), "task-clock", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS), "page-faults", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS), "faults", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS_MIN), "minor-faults", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS_MAJ), "major-faults", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CONTEXT_SWITCHES), "context-switches", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CONTEXT_SWITCHES), "cs", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_MIGRATIONS), "cpu-migrations", }, - {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_MIGRATIONS), "migrations", }, + { C(HARDWARE, CPU_CYCLES), "cpu-cycles", }, + { C(HARDWARE, CPU_CYCLES), "cycles", }, + { C(HARDWARE, INSTRUCTIONS), "instructions", }, + { C(HARDWARE, CACHE_REFERENCES), "cache-references", }, + { C(HARDWARE, CACHE_MISSES), "cache-misses", }, + { C(HARDWARE, BRANCH_INSTRUCTIONS), "branch-instructions", }, + { C(HARDWARE, BRANCH_INSTRUCTIONS), "branches", }, + { C(HARDWARE, BRANCH_MISSES), "branch-misses", }, + { C(HARDWARE, BUS_CYCLES), "bus-cycles", }, + + { C(SOFTWARE, CPU_CLOCK), "cpu-clock", }, + { C(SOFTWARE, TASK_CLOCK), "task-clock", }, + { C(SOFTWARE, PAGE_FAULTS), "page-faults", }, + { C(SOFTWARE, PAGE_FAULTS), "faults", }, + { C(SOFTWARE, PAGE_FAULTS_MIN), "minor-faults", }, + { C(SOFTWARE, PAGE_FAULTS_MAJ), "major-faults", }, + { C(SOFTWARE, CONTEXT_SWITCHES), "context-switches", }, + { C(SOFTWARE, CONTEXT_SWITCHES), "cs", }, + { C(SOFTWARE, CPU_MIGRATIONS), "cpu-migrations", }, + { C(SOFTWARE, CPU_MIGRATIONS), "migrations", }, }; #define __PERF_COUNTER_FIELD(config, name) \ @@ -67,27 +69,26 @@ static char *sw_event_names[] = { "major faults", }; -char *event_name(int ctr) +char *event_name(int counter) { - __u64 config = event_id[ctr]; - int type = PERF_COUNTER_TYPE(config); - int id = PERF_COUNTER_ID(config); + __u64 config = attrs[counter].config; + int type = attrs[counter].type; static char buf[32]; - if (PERF_COUNTER_RAW(config)) { - sprintf(buf, "raw 0x%llx", PERF_COUNTER_CONFIG(config)); + if (attrs[counter].type == PERF_TYPE_RAW) { + sprintf(buf, "raw 0x%llx", config); return buf; } switch (type) { case PERF_TYPE_HARDWARE: - if (id < PERF_HW_EVENTS_MAX) - return hw_event_names[id]; + if (config < PERF_HW_EVENTS_MAX) + return hw_event_names[config]; return "unknown-hardware"; case PERF_TYPE_SOFTWARE: - if (id < PERF_SW_EVENTS_MAX) - return sw_event_names[id]; + if (config < PERF_SW_EVENTS_MAX) + return sw_event_names[config]; return "unknown-software"; default: @@ -101,15 +102,19 @@ char *event_name(int ctr) * Each event can have multiple symbolic names. * Symbolic names are (almost) exactly matched. */ -static __u64 match_event_symbols(const char *str) +static int match_event_symbols(const char *str, struct perf_counter_attr *attr) { __u64 config, id; int type; unsigned int i; const char *sep, *pstr; - if (str[0] == 'r' && hex2u64(str + 1, &config) > 0) - return config | PERF_COUNTER_RAW_MASK; + if (str[0] == 'r' && hex2u64(str + 1, &config) > 0) { + attr->type = PERF_TYPE_RAW; + attr->config = config; + + return 0; + } pstr = str; sep = strchr(pstr, ':'); @@ -121,35 +126,45 @@ static __u64 match_event_symbols(const char *str) if (sep) { pstr = sep + 1; if (strchr(pstr, 'k')) - event_mask[nr_counters] |= EVENT_MASK_USER; + attr->exclude_user = 1; if (strchr(pstr, 'u')) - event_mask[nr_counters] |= EVENT_MASK_KERNEL; + attr->exclude_kernel = 1; } - return EID(type, id); + attr->type = type; + attr->config = id; + + return 0; } for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { if (!strncmp(str, event_symbols[i].symbol, - strlen(event_symbols[i].symbol))) - return event_symbols[i].event; + strlen(event_symbols[i].symbol))) { + + attr->type = event_symbols[i].type; + attr->config = event_symbols[i].config; + + return 0; + } } - return ~0ULL; + return -EINVAL; } int parse_events(const struct option *opt, const char *str, int unset) { - __u64 config; + struct perf_counter_attr attr; + int ret; + memset(&attr, 0, sizeof(attr)); again: if (nr_counters == MAX_COUNTERS) return -1; - config = match_event_symbols(str); - if (config == ~0ULL) - return -1; + ret = match_event_symbols(str, &attr); + if (ret < 0) + return ret; - event_id[nr_counters] = config; + attrs[nr_counters] = attr; nr_counters++; str = strstr(str, ","); @@ -168,7 +183,6 @@ void create_events_help(char *events_help_msg) { unsigned int i; char *str; - __u64 e; str = events_help_msg; @@ -178,9 +192,8 @@ void create_events_help(char *events_help_msg) for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { int type, id; - e = event_symbols[i].event; - type = PERF_COUNTER_TYPE(e); - id = PERF_COUNTER_ID(e); + type = event_symbols[i].type; + id = event_symbols[i].config; if (i) str += sprintf(str, "|"); @@ -191,4 +204,3 @@ void create_events_help(char *events_help_msg) str += sprintf(str, "|rNNN]"); } - diff --git a/Documentation/perf_counter/util/parse-events.h b/Documentation/perf_counter/util/parse-events.h index 0da306b..542971c 100644 --- a/Documentation/perf_counter/util/parse-events.h +++ b/Documentation/perf_counter/util/parse-events.h @@ -3,12 +3,9 @@ * Parse symbolic events/counts passed in as options: */ -extern int nr_counters; -extern __u64 event_id[MAX_COUNTERS]; -extern int event_mask[MAX_COUNTERS]; +extern int nr_counters; -#define EVENT_MASK_KERNEL 1 -#define EVENT_MASK_USER 2 +extern struct perf_counter_attr attrs[MAX_COUNTERS]; extern char *event_name(int ctr); diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_counter.c index 232b00a..4786ad9 100644 --- a/arch/powerpc/kernel/perf_counter.c +++ b/arch/powerpc/kernel/perf_counter.c @@ -867,13 +867,13 @@ const struct pmu *hw_perf_counter_init(struct perf_counter *counter) if (!ppmu) return ERR_PTR(-ENXIO); - if (!perf_event_raw(&counter->attr)) { - ev = perf_event_id(&counter->attr); + if (counter->attr.type != PERF_TYPE_RAW) { + ev = counter->attr.config; if (ev >= ppmu->n_generic || ppmu->generic_events[ev] == 0) return ERR_PTR(-EOPNOTSUPP); ev = ppmu->generic_events[ev]; } else { - ev = perf_event_config(&counter->attr); + ev = counter->attr.config; } counter->hw.config_base = ev; counter->hw.idx = 0; diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index 8f53f3a..430e048 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -292,15 +292,15 @@ static int __hw_perf_counter_init(struct perf_counter *counter) /* * Raw event type provide the config in the event structure */ - if (perf_event_raw(attr)) { - hwc->config |= x86_pmu.raw_event(perf_event_config(attr)); + if (attr->type == PERF_TYPE_RAW) { + hwc->config |= x86_pmu.raw_event(attr->config); } else { - if (perf_event_id(attr) >= x86_pmu.max_events) + if (attr->config >= x86_pmu.max_events) return -EINVAL; /* * The generic map: */ - hwc->config |= x86_pmu.event_map(perf_event_id(attr)); + hwc->config |= x86_pmu.event_map(attr->config); } counter->destroy = hw_perf_counter_destroy; diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index 4f9d39e..f794c69 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -73,26 +73,6 @@ enum sw_event_ids { PERF_SW_EVENTS_MAX = 7, }; -#define __PERF_COUNTER_MASK(name) \ - (((1ULL << PERF_COUNTER_##name##_BITS) - 1) << \ - PERF_COUNTER_##name##_SHIFT) - -#define PERF_COUNTER_RAW_BITS 1 -#define PERF_COUNTER_RAW_SHIFT 63 -#define PERF_COUNTER_RAW_MASK __PERF_COUNTER_MASK(RAW) - -#define PERF_COUNTER_CONFIG_BITS 63 -#define PERF_COUNTER_CONFIG_SHIFT 0 -#define PERF_COUNTER_CONFIG_MASK __PERF_COUNTER_MASK(CONFIG) - -#define PERF_COUNTER_TYPE_BITS 7 -#define PERF_COUNTER_TYPE_SHIFT 56 -#define PERF_COUNTER_TYPE_MASK __PERF_COUNTER_MASK(TYPE) - -#define PERF_COUNTER_EVENT_BITS 56 -#define PERF_COUNTER_EVENT_SHIFT 0 -#define PERF_COUNTER_EVENT_MASK __PERF_COUNTER_MASK(EVENT) - /* * Bits that can be set in attr.sample_type to request information * in the overflow packets. @@ -125,10 +105,13 @@ enum perf_counter_read_format { */ struct perf_counter_attr { /* - * The MSB of the config word signifies if the rest contains cpu - * specific (raw) counter configuration data, if unset, the next - * 7 bits are an event type and the rest of the bits are the event - * identifier. + * Major type: hardware/software/tracepoint/etc. + */ + __u32 type; + __u32 __reserved_1; + + /* + * Type specific configuration information. */ __u64 config; @@ -152,12 +135,11 @@ struct perf_counter_attr { comm : 1, /* include comm data */ freq : 1, /* use freq, not period */ - __reserved_1 : 53; + __reserved_2 : 53; __u32 wakeup_events; /* wakeup every n events */ - __u32 __reserved_2; + __u32 __reserved_3; - __u64 __reserved_3; __u64 __reserved_4; }; @@ -278,8 +260,8 @@ enum perf_event_type { /* * struct { - * struct perf_event_header header; - * u32 pid, ppid; + * struct perf_event_header header; + * u32 pid, ppid; * }; */ PERF_EVENT_FORK = 7, @@ -331,27 +313,6 @@ enum perf_event_type { struct task_struct; -static inline u64 perf_event_raw(struct perf_counter_attr *attr) -{ - return attr->config & PERF_COUNTER_RAW_MASK; -} - -static inline u64 perf_event_config(struct perf_counter_attr *attr) -{ - return attr->config & PERF_COUNTER_CONFIG_MASK; -} - -static inline u64 perf_event_type(struct perf_counter_attr *attr) -{ - return (attr->config & PERF_COUNTER_TYPE_MASK) >> - PERF_COUNTER_TYPE_SHIFT; -} - -static inline u64 perf_event_id(struct perf_counter_attr *attr) -{ - return attr->config & PERF_COUNTER_EVENT_MASK; -} - /** * struct hw_perf_counter - performance counter hardware details: */ @@ -616,8 +577,8 @@ extern int perf_counter_overflow(struct perf_counter *counter, */ static inline int is_software_counter(struct perf_counter *counter) { - return !perf_event_raw(&counter->attr) && - perf_event_type(&counter->attr) != PERF_TYPE_HARDWARE; + return (counter->attr.type != PERF_TYPE_RAW) && + (counter->attr.type != PERF_TYPE_HARDWARE); } extern void perf_swcounter_event(u32, u64, int, struct pt_regs *, u64); diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 47c92fb..75ae767 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -3091,14 +3091,12 @@ static int perf_swcounter_match(struct perf_counter *counter, enum perf_event_types type, u32 event, struct pt_regs *regs) { - u64 event_config; - - event_config = ((u64) type << PERF_COUNTER_TYPE_SHIFT) | event; - if (!perf_swcounter_is_counting(counter)) return 0; - if (counter->attr.config != event_config) + if (counter->attr.type != type) + return 0; + if (counter->attr.config != event) return 0; if (regs) { @@ -3403,7 +3401,7 @@ static const struct pmu *sw_perf_counter_init(struct perf_counter *counter) * to be kernel events, and page faults are never hypervisor * events. */ - switch (perf_event_id(&counter->attr)) { + switch (counter->attr.config) { case PERF_COUNT_CPU_CLOCK: pmu = &perf_ops_cpu_clock; @@ -3496,12 +3494,12 @@ perf_counter_alloc(struct perf_counter_attr *attr, if (attr->inherit && (attr->sample_type & PERF_SAMPLE_GROUP)) goto done; - if (perf_event_raw(attr)) { + if (attr->type == PERF_TYPE_RAW) { pmu = hw_perf_counter_init(counter); goto done; } - switch (perf_event_type(attr)) { + switch (attr->type) { case PERF_TYPE_HARDWARE: pmu = hw_perf_counter_init(counter); break; |
