Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
		
			
				
	
	
		
			140 lines
		
	
	
	
		
			3 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			140 lines
		
	
	
	
		
			3 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
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 *
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 * Based on alpha version.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version
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 * 2 of the License, or (at your option) any later version.
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 */
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#ifndef _ASM_POWERPC_OPROFILE_IMPL_H
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#define _ASM_POWERPC_OPROFILE_IMPL_H
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#ifdef __KERNEL__
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#define OP_MAX_COUNTER 8
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/* Per-counter configuration as set via oprofilefs.  */
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struct op_counter_config {
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	unsigned long enabled;
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	unsigned long event;
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	unsigned long count;
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	/* Classic doesn't support per-counter user/kernel selection */
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	unsigned long kernel;
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	unsigned long user;
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	unsigned long unit_mask;
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};
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/* System-wide configuration as set via oprofilefs.  */
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struct op_system_config {
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#ifdef CONFIG_PPC64
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	unsigned long mmcr0;
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	unsigned long mmcr1;
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	unsigned long mmcra;
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#ifdef CONFIG_OPROFILE_CELL
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	/* Register for oprofile user tool to check cell kernel profiling
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	 * support.
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	 */
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	unsigned long cell_support;
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#endif
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#endif
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	unsigned long enable_kernel;
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	unsigned long enable_user;
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};
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/* Per-arch configuration */
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struct op_powerpc_model {
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	int (*reg_setup) (struct op_counter_config *,
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			   struct op_system_config *,
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			   int num_counters);
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	int  (*cpu_setup) (struct op_counter_config *);
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	int  (*start) (struct op_counter_config *);
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	int  (*global_start) (struct op_counter_config *);
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	void (*stop) (void);
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	void (*global_stop) (void);
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	int (*sync_start)(void);
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	int (*sync_stop)(void);
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	void (*handle_interrupt) (struct pt_regs *,
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				  struct op_counter_config *);
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	int num_counters;
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};
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extern struct op_powerpc_model op_model_fsl_emb;
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extern struct op_powerpc_model op_model_rs64;
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extern struct op_powerpc_model op_model_power4;
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extern struct op_powerpc_model op_model_7450;
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extern struct op_powerpc_model op_model_cell;
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extern struct op_powerpc_model op_model_pa6t;
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/* All the classic PPC parts use these */
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static inline unsigned int classic_ctr_read(unsigned int i)
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{
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	switch(i) {
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	case 0:
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		return mfspr(SPRN_PMC1);
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	case 1:
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		return mfspr(SPRN_PMC2);
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	case 2:
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		return mfspr(SPRN_PMC3);
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	case 3:
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		return mfspr(SPRN_PMC4);
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	case 4:
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		return mfspr(SPRN_PMC5);
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	case 5:
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		return mfspr(SPRN_PMC6);
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/* No PPC32 chip has more than 6 so far */
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#ifdef CONFIG_PPC64
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	case 6:
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		return mfspr(SPRN_PMC7);
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	case 7:
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		return mfspr(SPRN_PMC8);
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#endif
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	default:
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		return 0;
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	}
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}
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static inline void classic_ctr_write(unsigned int i, unsigned int val)
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{
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	switch(i) {
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	case 0:
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		mtspr(SPRN_PMC1, val);
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		break;
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	case 1:
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		mtspr(SPRN_PMC2, val);
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		break;
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	case 2:
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		mtspr(SPRN_PMC3, val);
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		break;
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	case 3:
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		mtspr(SPRN_PMC4, val);
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		break;
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	case 4:
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		mtspr(SPRN_PMC5, val);
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		break;
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	case 5:
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		mtspr(SPRN_PMC6, val);
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		break;
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/* No PPC32 chip has more than 6, yet */
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#ifdef CONFIG_PPC64
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	case 6:
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		mtspr(SPRN_PMC7, val);
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		break;
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	case 7:
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		mtspr(SPRN_PMC8, val);
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		break;
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#endif
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	default:
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		break;
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	}
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}
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extern void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth);
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_OPROFILE_IMPL_H */
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