perf_counter tools: Merge common code into perfcounters.h

kerneltop's MAX_COUNTERS is increased from 8 to 64(the value used by perfstat).
Signed-off-by: NWu Fengguang <fengguang.wu@intel.com>
Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Documentation/perf_counter/kerneltop.c

@@ -65,126 +65,7 @@
 
 #include <linux/unistd.h>
 
-#ifdef __x86_64__
-# define __NR_perf_counter_open	295
-#endif
-
-#ifdef __i386__
-# define __NR_perf_counter_open 333
-#endif
-
-/*
- * Pick up some kernel type conventions:
- */
-#define __user
-#define asmlinkage
-
-typedef unsigned int		__u32;
-typedef unsigned long long	__u64;
-typedef long long		__s64;
-
-/*
- * User-space ABI bits:
- */
-
-/*
- * Generalized performance counter event types, used by the hw_event.type
- * parameter of the sys_perf_counter_open() syscall:
- */
-enum hw_event_types {
-	/*
-	 * Common hardware events, generalized by the kernel:
-	 */
-	PERF_COUNT_CPU_CYCLES		=  0,
-	PERF_COUNT_INSTRUCTIONS		=  1,
-	PERF_COUNT_CACHE_REFERENCES	=  2,
-	PERF_COUNT_CACHE_MISSES		=  3,
-	PERF_COUNT_BRANCH_INSTRUCTIONS	=  4,
-	PERF_COUNT_BRANCH_MISSES	=  5,
-	PERF_COUNT_BUS_CYCLES		=  6,
-
-	PERF_HW_EVENTS_MAX		=  7,
-
-	/*
-	 * Special "software" counters provided by the kernel, even if
-	 * the hardware does not support performance counters. These
-	 * counters measure various physical and sw events of the
-	 * kernel (and allow the profiling of them as well):
-	 */
-	PERF_COUNT_CPU_CLOCK		= -1,
-	PERF_COUNT_TASK_CLOCK		= -2,
-	PERF_COUNT_PAGE_FAULTS		= -3,
-	PERF_COUNT_CONTEXT_SWITCHES	= -4,
-	PERF_COUNT_CPU_MIGRATIONS	= -5,
-
-	PERF_SW_EVENTS_MIN		= -6,
-};
-
-/*
- * IRQ-notification data record type:
- */
-enum perf_counter_record_type {
-	PERF_RECORD_SIMPLE		=  0,
-	PERF_RECORD_IRQ			=  1,
-	PERF_RECORD_GROUP		=  2,
-};
-
-/*
- * Hardware event to monitor via a performance monitoring counter:
- */
-struct perf_counter_hw_event {
-	__s64			type;
-
-	__u64			irq_period;
-	__u64			record_type;
-	__u64			read_format;
-
-	__u64			disabled       :  1, /* off by default        */
-				nmi	       :  1, /* NMI sampling          */
-				raw	       :  1, /* raw event type        */
-				inherit	       :  1, /* children inherit it   */
-				pinned	       :  1, /* must always be on PMU */
-				exclusive      :  1, /* only group on PMU     */
-				exclude_user   :  1, /* don't count user      */
-				exclude_kernel :  1, /* ditto kernel          */
-				exclude_hv     :  1, /* ditto hypervisor      */
-				exclude_idle   :  1, /* don't count when idle */
-
-				__reserved_1   : 54;
-
-	__u32			extra_config_len;
-	__u32			__reserved_4;
-
-	__u64			__reserved_2;
-	__u64			__reserved_3;
-};
-
-/*
- * Ioctls that can be done on a perf counter fd:
- */
-#define PERF_COUNTER_IOC_ENABLE		_IO('$', 0)
-#define PERF_COUNTER_IOC_DISABLE	_IO('$', 1)
-
-asmlinkage int sys_perf_counter_open(
-
-	struct perf_counter_hw_event	*hw_event_uptr		__user,
-	pid_t				pid,
-	int				cpu,
-	int				group_fd,
-	unsigned long			flags)
-{
-	int ret;
-
-	ret = syscall(
-		__NR_perf_counter_open, hw_event_uptr, pid, cpu, group_fd, flags);
-#if defined(__x86_64__) || defined(__i386__)
-	if (ret < 0 && ret > -4096) {
-		errno = -ret;
-		ret = -1;
-	}
-#endif
-	return ret;
-}
+#include "perfcounters.h"
 
 const char *event_types [] = {
 	"CPU cycles",
@@ -205,21 +86,10 @@ const unsigned int default_count[] = {
 	  10000,
 };
 
-/*
- * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all
- * counters in the current task.
- */
-#define PR_TASK_PERF_COUNTERS_DISABLE           31
-#define PR_TASK_PERF_COUNTERS_ENABLE            32
-
-#define MAX_COUNTERS		8
-
 static int			nr_counters			= -1;
 
 static __u64			count_filter		       = 100;
 
-#define MAX_NR_CPUS		256
-
 static int			event_count[MAX_COUNTERS];
 static unsigned long		event_id[MAX_COUNTERS];
 static int			event_raw[MAX_COUNTERS];

Documentation/perf_counter/perfcounters.h

+/*
+ * Ioctls that can be done on a perf counter fd:
+ */
+#define PERF_COUNTER_IOC_ENABLE		_IO('$', 0)
+#define PERF_COUNTER_IOC_DISABLE	_IO('$', 1)
+
+/*
+ * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all
+ * counters in the current task.
+ */
+#define PR_TASK_PERF_COUNTERS_DISABLE	31
+#define PR_TASK_PERF_COUNTERS_ENABLE    32
+
+#define MAX_COUNTERS			64
+#define MAX_NR_CPUS			256
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+/*
+ * Pick up some kernel type conventions:
+ */
+#define __user
+#define asmlinkage
+
+typedef unsigned int		__u32;
+typedef unsigned long long	__u64;
+typedef long long		__s64;
+
+/*
+ * User-space ABI bits:
+ */
+
+/*
+ * Generalized performance counter event types, used by the hw_event.type
+ * parameter of the sys_perf_counter_open() syscall:
+ */
+enum hw_event_types {
+	/*
+	 * Common hardware events, generalized by the kernel:
+	 */
+	PERF_COUNT_CPU_CYCLES		=  0,
+	PERF_COUNT_INSTRUCTIONS		=  1,
+	PERF_COUNT_CACHE_REFERENCES	=  2,
+	PERF_COUNT_CACHE_MISSES		=  3,
+	PERF_COUNT_BRANCH_INSTRUCTIONS	=  4,
+	PERF_COUNT_BRANCH_MISSES	=  5,
+	PERF_COUNT_BUS_CYCLES		=  6,
+
+	PERF_HW_EVENTS_MAX		=  7,
+
+	/*
+	 * Special "software" counters provided by the kernel, even if
+	 * the hardware does not support performance counters. These
+	 * counters measure various physical and sw events of the
+	 * kernel (and allow the profiling of them as well):
+	 */
+	PERF_COUNT_CPU_CLOCK		= -1,
+	PERF_COUNT_TASK_CLOCK		= -2,
+	PERF_COUNT_PAGE_FAULTS		= -3,
+	PERF_COUNT_CONTEXT_SWITCHES	= -4,
+	PERF_COUNT_CPU_MIGRATIONS	= -5,
+
+	PERF_SW_EVENTS_MIN		= -6,
+};
+
+/*
+ * IRQ-notification data record type:
+ */
+enum perf_counter_record_type {
+	PERF_RECORD_SIMPLE		=  0,
+	PERF_RECORD_IRQ			=  1,
+	PERF_RECORD_GROUP		=  2,
+};
+
+/*
+ * Hardware event to monitor via a performance monitoring counter:
+ */
+struct perf_counter_hw_event {
+	__s64			type;
+
+	__u64			irq_period;
+	__u64			record_type;
+	__u64			read_format;
+
+	__u64			disabled       :  1, /* off by default        */
+				nmi	       :  1, /* NMI sampling          */
+				raw	       :  1, /* raw event type        */
+				inherit	       :  1, /* children inherit it   */
+				pinned	       :  1, /* must always be on PMU */
+				exclusive      :  1, /* only group on PMU     */
+				exclude_user   :  1, /* don't count user      */
+				exclude_kernel :  1, /* ditto kernel          */
+				exclude_hv     :  1, /* ditto hypervisor      */
+				exclude_idle   :  1, /* don't count when idle */
+
+				__reserved_1   : 54;
+
+	__u32			extra_config_len;
+	__u32			__reserved_4;
+
+	__u64			__reserved_2;
+	__u64			__reserved_3;
+};
+
+#ifdef __x86_64__
+# define __NR_perf_counter_open	295
+#endif
+
+#ifdef __i386__
+# define __NR_perf_counter_open 333
+#endif
+
+#ifdef __powerpc__
+#define __NR_perf_counter_open 319
+#endif
+
+asmlinkage int sys_perf_counter_open(
+
+	struct perf_counter_hw_event	*hw_event_uptr		__user,
+	pid_t				pid,
+	int				cpu,
+	int				group_fd,
+	unsigned long			flags)
+{
+	int ret;
+
+	ret = syscall(
+		__NR_perf_counter_open, hw_event_uptr, pid, cpu, group_fd, flags);
+#if defined(__x86_64__) || defined(__i386__)
+	if (ret < 0 && ret > -4096) {
+		errno = -ret;
+		ret = -1;
+	}
+#endif
+	return ret;
+}
+

Documentation/perf_counter/perfstat.c

@@ -52,133 +52,7 @@
 
 #include <linux/unistd.h>
 
-#ifdef __x86_64__
-# define __NR_perf_counter_open	295
-#endif
-
-#ifdef __i386__
-# define __NR_perf_counter_open 333
-#endif
-
-#ifdef __powerpc__
-#define __NR_perf_counter_open 319
-#endif
-
-/*
- * Pick up some kernel type conventions:
- */
-#define __user
-#define asmlinkage
-
-typedef unsigned int		__u32;
-typedef unsigned long long	__u64;
-typedef long long		__s64;
-
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-
-/*
- * User-space ABI bits:
- */
-
-/*
- * Generalized performance counter event types, used by the hw_event.type
- * parameter of the sys_perf_counter_open() syscall:
- */
-enum hw_event_types {
-	/*
-	 * Common hardware events, generalized by the kernel:
-	 */
-	PERF_COUNT_CPU_CYCLES		=  0,
-	PERF_COUNT_INSTRUCTIONS		=  1,
-	PERF_COUNT_CACHE_REFERENCES	=  2,
-	PERF_COUNT_CACHE_MISSES		=  3,
-	PERF_COUNT_BRANCH_INSTRUCTIONS	=  4,
-	PERF_COUNT_BRANCH_MISSES	=  5,
-	PERF_COUNT_BUS_CYCLES		=  6,
-
-	PERF_HW_EVENTS_MAX		=  7,
-
-	/*
-	 * Special "software" counters provided by the kernel, even if
-	 * the hardware does not support performance counters. These
-	 * counters measure various physical and sw events of the
-	 * kernel (and allow the profiling of them as well):
-	 */
-	PERF_COUNT_CPU_CLOCK		= -1,
-	PERF_COUNT_TASK_CLOCK		= -2,
-	PERF_COUNT_PAGE_FAULTS		= -3,
-	PERF_COUNT_CONTEXT_SWITCHES	= -4,
-	PERF_COUNT_CPU_MIGRATIONS	= -5,
-
-	PERF_SW_EVENTS_MIN		= -6,
-};
-
-/*
- * IRQ-notification data record type:
- */
-enum perf_counter_record_type {
-	PERF_RECORD_SIMPLE		=  0,
-	PERF_RECORD_IRQ			=  1,
-	PERF_RECORD_GROUP		=  2,
-};
-
-/*
- * Hardware event to monitor via a performance monitoring counter:
- */
-struct perf_counter_hw_event {
-	__s64			type;
-
-	__u64			irq_period;
-	__u64			record_type;
-	__u64			read_format;
-
-	__u64			disabled       :  1, /* off by default        */
-				nmi	       :  1, /* NMI sampling          */
-				raw	       :  1, /* raw event type        */
-				inherit	       :  1, /* children inherit it   */
-				pinned	       :  1, /* must always be on PMU */
-				exclusive      :  1, /* only group on PMU     */
-				exclude_user   :  1, /* don't count user      */
-				exclude_kernel :  1, /* ditto kernel          */
-				exclude_hv     :  1, /* ditto hypervisor      */
-				exclude_idle   :  1, /* don't count when idle */
-
-				__reserved_1   : 54;
-
-	__u32			extra_config_len;
-	__u32			__reserved_4;
-
-	__u64			__reserved_2;
-	__u64			__reserved_3;
-};
-
-/*
- * Ioctls that can be done on a perf counter fd:
- */
-#define PERF_COUNTER_IOC_ENABLE		_IO('$', 0)
-#define PERF_COUNTER_IOC_DISABLE	_IO('$', 1)
-
-asmlinkage int sys_perf_counter_open(
-
-	struct perf_counter_hw_event	*hw_event_uptr		__user,
-	pid_t				pid,
-	int				cpu,
-	int				group_fd,
-	unsigned long			flags)
-{
-	int ret;
-
-	ret = syscall(
-		__NR_perf_counter_open, hw_event_uptr, pid, cpu, group_fd, flags);
-#if defined(__x86_64__) || defined(__i386__)
-	if (ret < 0 && ret > -4096) {
-		errno = -ret;
-		ret = -1;
-	}
-#endif
-	return ret;
-}
-
+#include "perfcounters.h"
 
 static char *hw_event_names [] = {
 	"CPU cycles",
@@ -224,9 +98,6 @@ static struct event_symbol event_symbols [] = {
 	{PERF_COUNT_CPU_MIGRATIONS,		"migrations",		},
 };
 
-#define MAX_COUNTERS					64
-#define MAX_NR_CPUS					256
-
 static int			nr_counters		= 0;
 static int			nr_cpus			= 0;
 
@@ -388,9 +259,6 @@ static void process_options(int argc, char *argv[])
 
 char fault_here[1000000];
 
-#define PR_TASK_PERF_COUNTERS_DISABLE           31
-#define PR_TASK_PERF_COUNTERS_ENABLE            32
-
 static int fd[MAX_NR_CPUS][MAX_COUNTERS];
 
 static void create_counter(int counter)