140 lines
3 KiB
C
140 lines
3 KiB
C
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/*
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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_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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