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1/*
2 * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
3 *
4 * Based on alpha version.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12#ifndef _ASM_POWERPC_OPROFILE_IMPL_H
13#define _ASM_POWERPC_OPROFILE_IMPL_H
14#ifdef __KERNEL__
15
16#define OP_MAX_COUNTER 8
17
18/* Per-counter configuration as set via oprofilefs. */
19struct op_counter_config {
20 unsigned long enabled;
21 unsigned long event;
22 unsigned long count;
23 /* Classic doesn't support per-counter user/kernel selection */
24 unsigned long kernel;
25 unsigned long user;
26 unsigned long unit_mask;
27};
28
29/* System-wide configuration as set via oprofilefs. */
30struct op_system_config {
31#ifdef CONFIG_PPC64
32 unsigned long mmcr0;
33 unsigned long mmcr1;
34 unsigned long mmcra;
35#ifdef CONFIG_OPROFILE_CELL
36 /* Register for oprofile user tool to check cell kernel profiling
37 * support.
38 */
39 unsigned long cell_support;
40#endif
41#endif
42 unsigned long enable_kernel;
43 unsigned long enable_user;
44};
45
46/* Per-arch configuration */
47struct op_powerpc_model {
48 int (*reg_setup) (struct op_counter_config *,
49 struct op_system_config *,
50 int num_counters);
51 int (*cpu_setup) (struct op_counter_config *);
52 int (*start) (struct op_counter_config *);
53 int (*global_start) (struct op_counter_config *);
54 void (*stop) (void);
55 void (*global_stop) (void);
56 int (*sync_start)(void);
57 int (*sync_stop)(void);
58 void (*handle_interrupt) (struct pt_regs *,
59 struct op_counter_config *);
60 int num_counters;
61};
62
63extern struct op_powerpc_model op_model_fsl_emb;
64extern struct op_powerpc_model op_model_power4;
65extern struct op_powerpc_model op_model_7450;
66extern struct op_powerpc_model op_model_cell;
67extern struct op_powerpc_model op_model_pa6t;
68
69
70/* All the classic PPC parts use these */
71static inline unsigned int classic_ctr_read(unsigned int i)
72{
73 switch(i) {
74 case 0:
75 return mfspr(SPRN_PMC1);
76 case 1:
77 return mfspr(SPRN_PMC2);
78 case 2:
79 return mfspr(SPRN_PMC3);
80 case 3:
81 return mfspr(SPRN_PMC4);
82 case 4:
83 return mfspr(SPRN_PMC5);
84 case 5:
85 return mfspr(SPRN_PMC6);
86
87/* No PPC32 chip has more than 6 so far */
88#ifdef CONFIG_PPC64
89 case 6:
90 return mfspr(SPRN_PMC7);
91 case 7:
92 return mfspr(SPRN_PMC8);
93#endif
94 default:
95 return 0;
96 }
97}
98
99static inline void classic_ctr_write(unsigned int i, unsigned int val)
100{
101 switch(i) {
102 case 0:
103 mtspr(SPRN_PMC1, val);
104 break;
105 case 1:
106 mtspr(SPRN_PMC2, val);
107 break;
108 case 2:
109 mtspr(SPRN_PMC3, val);
110 break;
111 case 3:
112 mtspr(SPRN_PMC4, val);
113 break;
114 case 4:
115 mtspr(SPRN_PMC5, val);
116 break;
117 case 5:
118 mtspr(SPRN_PMC6, val);
119 break;
120
121/* No PPC32 chip has more than 6, yet */
122#ifdef CONFIG_PPC64
123 case 6:
124 mtspr(SPRN_PMC7, val);
125 break;
126 case 7:
127 mtspr(SPRN_PMC8, val);
128 break;
129#endif
130 default:
131 break;
132 }
133}
134
135
136extern void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth);
137
138#endif /* __KERNEL__ */
139#endif /* _ASM_POWERPC_OPROFILE_IMPL_H */
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
4 *
5 * Based on alpha version.
6 */
7
8#ifndef _ASM_POWERPC_OPROFILE_IMPL_H
9#define _ASM_POWERPC_OPROFILE_IMPL_H
10#ifdef __KERNEL__
11
12#define OP_MAX_COUNTER 8
13
14/* Per-counter configuration as set via oprofilefs. */
15struct op_counter_config {
16 unsigned long enabled;
17 unsigned long event;
18 unsigned long count;
19 /* Classic doesn't support per-counter user/kernel selection */
20 unsigned long kernel;
21 unsigned long user;
22 unsigned long unit_mask;
23};
24
25/* System-wide configuration as set via oprofilefs. */
26struct op_system_config {
27#ifdef CONFIG_PPC64
28 unsigned long mmcr0;
29 unsigned long mmcr1;
30 unsigned long mmcra;
31#ifdef CONFIG_OPROFILE_CELL
32 /* Register for oprofile user tool to check cell kernel profiling
33 * support.
34 */
35 unsigned long cell_support;
36#endif
37#endif
38 unsigned long enable_kernel;
39 unsigned long enable_user;
40};
41
42/* Per-arch configuration */
43struct op_powerpc_model {
44 int (*reg_setup) (struct op_counter_config *,
45 struct op_system_config *,
46 int num_counters);
47 int (*cpu_setup) (struct op_counter_config *);
48 int (*start) (struct op_counter_config *);
49 int (*global_start) (struct op_counter_config *);
50 void (*stop) (void);
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 *);
56 int num_counters;
57};
58
59extern struct op_powerpc_model op_model_fsl_emb;
60extern struct op_powerpc_model op_model_power4;
61extern struct op_powerpc_model op_model_7450;
62extern struct op_powerpc_model op_model_cell;
63extern struct op_powerpc_model op_model_pa6t;
64
65
66/* All the classic PPC parts use these */
67static inline unsigned int classic_ctr_read(unsigned int i)
68{
69 switch(i) {
70 case 0:
71 return mfspr(SPRN_PMC1);
72 case 1:
73 return mfspr(SPRN_PMC2);
74 case 2:
75 return mfspr(SPRN_PMC3);
76 case 3:
77 return mfspr(SPRN_PMC4);
78 case 4:
79 return mfspr(SPRN_PMC5);
80 case 5:
81 return mfspr(SPRN_PMC6);
82
83/* No PPC32 chip has more than 6 so far */
84#ifdef CONFIG_PPC64
85 case 6:
86 return mfspr(SPRN_PMC7);
87 case 7:
88 return mfspr(SPRN_PMC8);
89#endif
90 default:
91 return 0;
92 }
93}
94
95static inline void classic_ctr_write(unsigned int i, unsigned int val)
96{
97 switch(i) {
98 case 0:
99 mtspr(SPRN_PMC1, val);
100 break;
101 case 1:
102 mtspr(SPRN_PMC2, val);
103 break;
104 case 2:
105 mtspr(SPRN_PMC3, val);
106 break;
107 case 3:
108 mtspr(SPRN_PMC4, val);
109 break;
110 case 4:
111 mtspr(SPRN_PMC5, val);
112 break;
113 case 5:
114 mtspr(SPRN_PMC6, val);
115 break;
116
117/* No PPC32 chip has more than 6, yet */
118#ifdef CONFIG_PPC64
119 case 6:
120 mtspr(SPRN_PMC7, val);
121 break;
122 case 7:
123 mtspr(SPRN_PMC8, val);
124 break;
125#endif
126 default:
127 break;
128 }
129}
130
131
132extern void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth);
133
134#endif /* __KERNEL__ */
135#endif /* _ASM_POWERPC_OPROFILE_IMPL_H */