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64 lines
1.4 KiB
64 lines
1.4 KiB
/* |
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* arch/sh/oprofile/init.c |
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* |
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* Copyright (C) 2003 - 2010 Paul Mundt |
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* |
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* Based on arch/mips/oprofile/common.c: |
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* |
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* Copyright (C) 2004, 2005 Ralf Baechle |
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* Copyright (C) 2005 MIPS Technologies, Inc. |
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* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/oprofile.h> |
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#include <linux/init.h> |
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#include <linux/errno.h> |
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#include <linux/smp.h> |
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#include <linux/perf_event.h> |
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#include <linux/slab.h> |
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#include <asm/processor.h> |
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extern void sh_backtrace(struct pt_regs * const regs, unsigned int depth); |
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#ifdef CONFIG_HW_PERF_EVENTS |
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/* |
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* This will need to be reworked when multiple PMUs are supported. |
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*/ |
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static char *sh_pmu_op_name; |
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char *op_name_from_perf_id(void) |
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{ |
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return sh_pmu_op_name; |
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} |
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int __init oprofile_arch_init(struct oprofile_operations *ops) |
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{ |
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ops->backtrace = sh_backtrace; |
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if (perf_num_counters() == 0) |
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return -ENODEV; |
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sh_pmu_op_name = kasprintf(GFP_KERNEL, "%s/%s", |
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UTS_MACHINE, perf_pmu_name()); |
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if (unlikely(!sh_pmu_op_name)) |
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return -ENOMEM; |
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return oprofile_perf_init(ops); |
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} |
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void oprofile_arch_exit(void) |
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{ |
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oprofile_perf_exit(); |
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kfree(sh_pmu_op_name); |
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} |
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#else |
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int __init oprofile_arch_init(struct oprofile_operations *ops) |
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{ |
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ops->backtrace = sh_backtrace; |
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return -ENODEV; |
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} |
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void oprofile_arch_exit(void) {} |
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#endif /* CONFIG_HW_PERF_EVENTS */
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