1/*
 2 * arch/sh/oprofile/init.c
 3 *
 4 * Copyright (C) 2003 - 2010  Paul Mundt
 5 *
 6 * Based on arch/mips/oprofile/common.c:
 7 *
 8 *	Copyright (C) 2004, 2005 Ralf Baechle
 9 *	Copyright (C) 2005 MIPS Technologies, Inc.
10 *
11 * This file is subject to the terms and conditions of the GNU General Public
12 * License.  See the file "COPYING" in the main directory of this archive
13 * for more details.
14 */
15#include <linux/kernel.h>
16#include <linux/oprofile.h>
17#include <linux/init.h>
18#include <linux/errno.h>
19#include <linux/smp.h>
20#include <linux/perf_event.h>
21#include <linux/slab.h>
22#include <asm/processor.h>
23
24extern void sh_backtrace(struct pt_regs * const regs, unsigned int depth);
25
26#ifdef CONFIG_HW_PERF_EVENTS
27/*
28 * This will need to be reworked when multiple PMUs are supported.
29 */
30static char *sh_pmu_op_name;
31
32char *op_name_from_perf_id(void)
33{
34	return sh_pmu_op_name;
35}
36
37int __init oprofile_arch_init(struct oprofile_operations *ops)
38{
39	ops->backtrace = sh_backtrace;
40
41	if (perf_num_counters() == 0)
42		return -ENODEV;
43
44	sh_pmu_op_name = kasprintf(GFP_KERNEL, "%s/%s",
45				   UTS_MACHINE, perf_pmu_name());
46	if (unlikely(!sh_pmu_op_name))
47		return -ENOMEM;
48
49	return oprofile_perf_init(ops);
50}
51
52void oprofile_arch_exit(void)
53{
54	oprofile_perf_exit();
55	kfree(sh_pmu_op_name);
56}
57#else
58int __init oprofile_arch_init(struct oprofile_operations *ops)
59{
60	ops->backtrace = sh_backtrace;
61	return -ENODEV;
62}
63void oprofile_arch_exit(void) {}
64#endif /* CONFIG_HW_PERF_EVENTS */

 1/*
 2 * arch/sh/oprofile/init.c
 3 *
 4 * Copyright (C) 2003 - 2010  Paul Mundt
 5 *
 6 * Based on arch/mips/oprofile/common.c:
 7 *
 8 *	Copyright (C) 2004, 2005 Ralf Baechle
 9 *	Copyright (C) 2005 MIPS Technologies, Inc.
10 *
11 * This file is subject to the terms and conditions of the GNU General Public
12 * License.  See the file "COPYING" in the main directory of this archive
13 * for more details.
14 */
15#include <linux/kernel.h>
16#include <linux/oprofile.h>
17#include <linux/init.h>
18#include <linux/errno.h>
19#include <linux/smp.h>
20#include <linux/perf_event.h>
21#include <linux/slab.h>
22#include <asm/processor.h>
23
24extern void sh_backtrace(struct pt_regs * const regs, unsigned int depth);
25
26#ifdef CONFIG_HW_PERF_EVENTS
27/*
28 * This will need to be reworked when multiple PMUs are supported.
29 */
30static char *sh_pmu_op_name;
31
32char *op_name_from_perf_id(void)
33{
34	return sh_pmu_op_name;
35}
36
37int __init oprofile_arch_init(struct oprofile_operations *ops)
38{
39	ops->backtrace = sh_backtrace;
40
41	if (perf_num_counters() == 0)
42		return -ENODEV;
43
44	sh_pmu_op_name = kasprintf(GFP_KERNEL, "%s/%s",
45				   UTS_MACHINE, perf_pmu_name());
46	if (unlikely(!sh_pmu_op_name))
47		return -ENOMEM;
48
49	return oprofile_perf_init(ops);
50}
51
52void __exit oprofile_arch_exit(void)
53{
54	oprofile_perf_exit();
55	kfree(sh_pmu_op_name);
56}
57#else
58int __init oprofile_arch_init(struct oprofile_operations *ops)
59{
60	ops->backtrace = sh_backtrace;
61	return -ENODEV;
62}
63void __exit oprofile_arch_exit(void) {}
64#endif /* CONFIG_HW_PERF_EVENTS */