Commit 1b294f59 authored by Robert Richter's avatar Robert Richter
Browse files

oprofile: Adding switch counter to oprofile statistic variables 



This patch moves the multiplexing switch counter from x86 code to
common oprofile statistic variables. Now the value will be available
and usable for all architectures. The initialization and
incrementation also moved to common code.

Signed-off-by: default avatarRobert Richter <robert.richter@amd.com>
parent 4d015f79

arch/x86/oprofile/nmi_int.c

+0 −7
Original line number Diff line number Diff line
@@ -34,11 +34,6 @@ static DEFINE_PER_CPU(unsigned long, saved_lvtpc); 
/* 0 == registered but off, 1 == registered and on */

static int nmi_enabled = 0;





#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX

extern atomic_t multiplex_counter;

#endif



struct op_counter_config counter_config[OP_MAX_COUNTER];



/* common functions */
@@ -253,8 +248,6 @@ static int nmi_switch_event(void) 


	on_each_cpu(nmi_cpu_switch, NULL, 1);



	atomic_inc(&multiplex_counter);



	return 0;

}

drivers/oprofile/oprof.c

+5 −2
Original line number Diff line number Diff line
@@ -107,7 +107,10 @@ static void stop_switch_worker(void) 


static void switch_worker(struct work_struct *work)

{

	if (!oprofile_ops.switch_events())

	if (oprofile_ops.switch_events())

		return;



	atomic_inc(&oprofile_stats.multiplex_counter);

	start_switch_worker();

}

drivers/oprofile/oprofile_stats.c

+2 −7
Original line number Diff line number Diff line
@@ -16,9 +16,6 @@ 
#include "cpu_buffer.h"



struct oprofile_stat_struct oprofile_stats;

#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX

atomic_t multiplex_counter;

#endif



void oprofile_reset_stats(void)

{
@@ -37,9 +34,7 @@ void oprofile_reset_stats(void) 
	atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);

	atomic_set(&oprofile_stats.event_lost_overflow, 0);

	atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);

#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX

	atomic_set(&multiplex_counter, 0);

#endif

	atomic_set(&oprofile_stats.multiplex_counter, 0);

}
@@ -84,6 +79,6 @@ void oprofile_create_stats_files(struct super_block *sb, struct dentry *root) 
		&oprofile_stats.bt_lost_no_mapping);

#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX

	oprofilefs_create_ro_atomic(sb, dir, "multiplex_counter",

		&multiplex_counter);

		&oprofile_stats.multiplex_counter);

#endif

}

drivers/oprofile/oprofile_stats.h

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ struct oprofile_stat_struct { 
	atomic_t sample_lost_no_mapping;

	atomic_t bt_lost_no_mapping;

	atomic_t event_lost_overflow;

	atomic_t multiplex_counter;

};



extern struct oprofile_stat_struct oprofile_stats;

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