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