1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
5 * Based on alpha version.
8 #ifndef _ASM_POWERPC_OPROFILE_IMPL_H
9 #define _ASM_POWERPC_OPROFILE_IMPL_H
12 #define OP_MAX_COUNTER 8
14 /* Per-counter configuration as set via oprofilefs. */
15 struct op_counter_config {
16 unsigned long enabled;
19 /* Classic doesn't support per-counter user/kernel selection */
22 unsigned long unit_mask;
25 /* System-wide configuration as set via oprofilefs. */
26 struct op_system_config {
31 #ifdef CONFIG_OPROFILE_CELL
32 /* Register for oprofile user tool to check cell kernel profiling
35 unsigned long cell_support;
38 unsigned long enable_kernel;
39 unsigned long enable_user;
42 /* Per-arch configuration */
43 struct op_powerpc_model {
44 int (*reg_setup) (struct op_counter_config *,
45 struct op_system_config *,
47 int (*cpu_setup) (struct op_counter_config *);
48 int (*start) (struct op_counter_config *);
49 int (*global_start) (struct op_counter_config *);
51 void (*global_stop) (void);
52 int (*sync_start)(void);
53 int (*sync_stop)(void);
54 void (*handle_interrupt) (struct pt_regs *,
55 struct op_counter_config *);
59 extern struct op_powerpc_model op_model_fsl_emb;
60 extern struct op_powerpc_model op_model_power4;
61 extern struct op_powerpc_model op_model_7450;
62 extern struct op_powerpc_model op_model_cell;
63 extern struct op_powerpc_model op_model_pa6t;
66 /* All the classic PPC parts use these */
67 static inline unsigned int classic_ctr_read(unsigned int i)
71 return mfspr(SPRN_PMC1);
73 return mfspr(SPRN_PMC2);
75 return mfspr(SPRN_PMC3);
77 return mfspr(SPRN_PMC4);
79 return mfspr(SPRN_PMC5);
81 return mfspr(SPRN_PMC6);
83 /* No PPC32 chip has more than 6 so far */
86 return mfspr(SPRN_PMC7);
88 return mfspr(SPRN_PMC8);
95 static inline void classic_ctr_write(unsigned int i, unsigned int val)
99 mtspr(SPRN_PMC1, val);
102 mtspr(SPRN_PMC2, val);
105 mtspr(SPRN_PMC3, val);
108 mtspr(SPRN_PMC4, val);
111 mtspr(SPRN_PMC5, val);
114 mtspr(SPRN_PMC6, val);
117 /* No PPC32 chip has more than 6, yet */
120 mtspr(SPRN_PMC7, val);
123 mtspr(SPRN_PMC8, val);
132 extern void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth);
134 #endif /* __KERNEL__ */
135 #endif /* _ASM_POWERPC_OPROFILE_IMPL_H */