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-rw-r--r--arch/powerpc/include/asm/oprofile_impl.h134
1 files changed, 134 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/oprofile_impl.h b/arch/powerpc/include/asm/oprofile_impl.h
new file mode 100644
index 00000000000..95035c602ba
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+++ b/arch/powerpc/include/asm/oprofile_impl.h
@@ -0,0 +1,134 @@
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#endif
36 unsigned long enable_kernel;
37 unsigned long enable_user;
38};
39
40/* Per-arch configuration */
41struct op_powerpc_model {
42 int (*reg_setup) (struct op_counter_config *,
43 struct op_system_config *,
44 int num_counters);
45 int (*cpu_setup) (struct op_counter_config *);
46 int (*start) (struct op_counter_config *);
47 int (*global_start) (struct op_counter_config *);
48 void (*stop) (void);
49 void (*global_stop) (void);
50 int (*sync_start)(void);
51 int (*sync_stop)(void);
52 void (*handle_interrupt) (struct pt_regs *,
53 struct op_counter_config *);
54 int num_counters;
55};
56
57extern struct op_powerpc_model op_model_fsl_emb;
58extern struct op_powerpc_model op_model_rs64;
59extern struct op_powerpc_model op_model_power4;
60extern struct op_powerpc_model op_model_7450;
61extern struct op_powerpc_model op_model_cell;
62extern struct op_powerpc_model op_model_pa6t;
63
64
65/* All the classic PPC parts use these */
66static inline unsigned int classic_ctr_read(unsigned int i)
67{
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);
81
82/* No PPC32 chip has more than 6 so far */
83#ifdef CONFIG_PPC64
84 case 6:
85 return mfspr(SPRN_PMC7);
86 case 7:
87 return mfspr(SPRN_PMC8);
88#endif
89 default:
90 return 0;
91 }
92}
93
94static inline void classic_ctr_write(unsigned int i, unsigned int val)
95{
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;
115
116/* No PPC32 chip has more than 6, yet */
117#ifdef CONFIG_PPC64
118 case 6:
119 mtspr(SPRN_PMC7, val);
120 break;
121 case 7:
122 mtspr(SPRN_PMC8, val);
123 break;
124#endif
125 default:
126 break;
127 }
128}
129
130
131extern void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth);
132
133#endif /* __KERNEL__ */
134#endif /* _ASM_POWERPC_OPROFILE_IMPL_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 04:44:05 -0500