/* * 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 */