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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Stephen Rothwell654810e2005-09-19 23:21:15 +100012#ifndef _ASM_POWERPC_OPROFILE_IMPL_H
13#define _ASM_POWERPC_OPROFILE_IMPL_H
Arnd Bergmann88ced032005-12-16 22:43:46 +010014#ifdef __KERNEL__
Linus Torvalds1da177e2005-04-16 15:20:36 -070015
16#define OP_MAX_COUNTER 8
17
18/* Per-counter configuration as set via oprofilefs. */
19struct op_counter_config {
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 unsigned long enabled;
21 unsigned long event;
22 unsigned long count;
Andy Fleming555d97a2005-12-15 20:02:04 -060023 /* Classic doesn't support per-counter user/kernel selection */
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 unsigned long kernel;
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 unsigned long user;
26 unsigned long unit_mask;
27};
28
29/* System-wide configuration as set via oprofilefs. */
30struct op_system_config {
Andy Fleming555d97a2005-12-15 20:02:04 -060031#ifdef CONFIG_PPC64
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 unsigned long mmcr0;
33 unsigned long mmcr1;
34 unsigned long mmcra;
Stephen Rothwell654810e2005-09-19 23:21:15 +100035#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 unsigned long enable_kernel;
37 unsigned long enable_user;
Linus Torvalds1da177e2005-04-16 15:20:36 -070038};
39
40/* Per-arch configuration */
Stephen Rothwella3e48c12005-09-19 23:18:31 +100041struct op_powerpc_model {
Bob Nelson14748552007-07-20 21:39:53 +020042 int (*reg_setup) (struct op_counter_config *,
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 struct op_system_config *,
44 int num_counters);
Bob Nelson14748552007-07-20 21:39:53 +020045 int (*cpu_setup) (struct op_counter_config *);
46 int (*start) (struct op_counter_config *);
47 int (*global_start) (struct op_counter_config *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 void (*stop) (void);
Maynard Johnson18f21902006-11-20 18:45:16 +010049 void (*global_stop) (void);
Bob Nelson14748552007-07-20 21:39:53 +020050 int (*sync_start)(void);
51 int (*sync_stop)(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 void (*handle_interrupt) (struct pt_regs *,
53 struct op_counter_config *);
54 int num_counters;
55};
56
Andy Fleming39aef682008-02-04 18:27:55 -060057extern struct op_powerpc_model op_model_fsl_emb;
Stephen Rothwella3e48c12005-09-19 23:18:31 +100058extern struct op_powerpc_model op_model_rs64;
59extern struct op_powerpc_model op_model_power4;
Andy Fleming555d97a2005-12-15 20:02:04 -060060extern struct op_powerpc_model op_model_7450;
Maynard Johnson18f21902006-11-20 18:45:16 +010061extern struct op_powerpc_model op_model_cell;
Olof Johansson25fc5302007-04-18 16:38:21 +100062extern struct op_powerpc_model op_model_pa6t;
63
Anton Blanchard72533db2006-03-27 11:23:29 +110064
Andy Fleming555d97a2005-12-15 20:02:04 -060065/* All the classic PPC parts use these */
Olof Johanssonc69b7672007-01-28 21:23:14 -060066static inline unsigned int classic_ctr_read(unsigned int i)
Linus Torvalds1da177e2005-04-16 15:20:36 -070067{
68 switch(i) {
69 case 0:
70 return mfspr(SPRN_PMC1);
71 case 1:
72 return mfspr(SPRN_PMC2);
73 case 2:
74 return mfspr(SPRN_PMC3);
75 case 3:
76 return mfspr(SPRN_PMC4);
77 case 4:
78 return mfspr(SPRN_PMC5);
79 case 5:
80 return mfspr(SPRN_PMC6);
Andy Fleming555d97a2005-12-15 20:02:04 -060081
82/* No PPC32 chip has more than 6 so far */
83#ifdef CONFIG_PPC64
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 case 6:
85 return mfspr(SPRN_PMC7);
86 case 7:
87 return mfspr(SPRN_PMC8);
Andy Fleming555d97a2005-12-15 20:02:04 -060088#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 default:
90 return 0;
91 }
92}
93
Olof Johanssonc69b7672007-01-28 21:23:14 -060094static inline void classic_ctr_write(unsigned int i, unsigned int val)
Linus Torvalds1da177e2005-04-16 15:20:36 -070095{
96 switch(i) {
97 case 0:
98 mtspr(SPRN_PMC1, val);
99 break;
100 case 1:
101 mtspr(SPRN_PMC2, val);
102 break;
103 case 2:
104 mtspr(SPRN_PMC3, val);
105 break;
106 case 3:
107 mtspr(SPRN_PMC4, val);
108 break;
109 case 4:
110 mtspr(SPRN_PMC5, val);
111 break;
112 case 5:
113 mtspr(SPRN_PMC6, val);
114 break;
Andy Fleming555d97a2005-12-15 20:02:04 -0600115
116/* No PPC32 chip has more than 6, yet */
117#ifdef CONFIG_PPC64
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 case 6:
119 mtspr(SPRN_PMC7, val);
120 break;
121 case 7:
122 mtspr(SPRN_PMC8, val);
123 break;
Andy Fleming555d97a2005-12-15 20:02:04 -0600124#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 default:
126 break;
127 }
128}
Andy Flemingdd6c89f2006-10-27 15:06:32 -0500129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130
Brian Rogan6c6bd752006-03-27 11:57:01 +1100131extern void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth);
132
Arnd Bergmann88ced032005-12-16 22:43:46 +0100133#endif /* __KERNEL__ */
Stephen Rothwell654810e2005-09-19 23:21:15 +1000134#endif /* _ASM_POWERPC_OPROFILE_IMPL_H */