1/*
2 * This file contains the code to configure and utilize the ppc64 pmc hardware
3 * Copyright (C) 2002 David Engebretsen <engebret@us.ibm.com>
4 */
5
6#ifndef __KERNEL__
7#define INLINE_SYSCALL(arg1, arg2)       \
8  ({                                            \
9    register long r0 __asm__ ("r0");     \
10    register long r3 __asm__ ("r3"); \
11    register long r4 __asm__ ("r4"); \
12    long ret, err;                              \
13    r0 = 208; \
14    r3 = (long) (arg1); \
15    r4 = (long) (arg2); \
16    __asm__ ("sc\n\t"                           \
17             "mfcr      %1\n\t"                 \
18             : "=r" (r3), "=r" (err)            \
19             : "r" (r0), "r" (r3), "r" (r4) \
20             : "cc", "memory");                 \
21    ret = r3;                                   \
22  })
23#endif
24
25#ifndef __ASSEMBLY__
26struct perfmon_base_struct {
27	u64 profile_buffer;
28	u64 profile_length;
29	u64 trace_buffer;
30	u64 trace_length;
31	u64 trace_end;
32	u64 state;
33};
34
35struct pmc_header {
36	int type;
37	int pid;
38	int resv[30];
39};
40
41struct pmc_struct {
42        int pmc[11];
43};
44
45struct pmc_info_struct {
46	unsigned int mode, cpu;
47
48	unsigned int  pmc_base[11];
49	unsigned long pmc_cumulative[8];
50};
51
52struct perfmon_struct {
53	struct pmc_header header;
54
55	union {
56		struct pmc_struct      pmc;
57		struct pmc_info_struct pmc_info;
58 	} vdata;
59};
60
61enum {
62	PMC_OP_ALLOC         = 1,
63	PMC_OP_FREE          = 2,
64	PMC_OP_CLEAR         = 4,
65	PMC_OP_DUMP          = 5,
66	PMC_OP_DUMP_HARDWARE = 6,
67	PMC_OP_DECR_PROFILE  = 20,
68	PMC_OP_PMC_PROFILE   = 21,
69	PMC_OP_SET           = 30,
70	PMC_OP_SET_USER      = 31,
71	PMC_OP_END           = 30
72};
73
74
75#define	PMC_TRACE_CMD 0xFF
76
77enum {
78	PMC_TYPE_DERC_PROFILE  = 1,
79	PMC_TYPE_CYCLE         = 2,
80	PMC_TYPE_PROFILE       = 3,
81	PMC_TYPE_DCACHE        = 4,
82	PMC_TYPE_L2_MISS       = 5,
83	PMC_TYPE_LWARCX        = 6,
84	PMC_TYPE_END           = 6
85};
86#endif
87
88#define	PMC_STATE_INITIAL         0x00
89#define	PMC_STATE_READY           0x01
90#define	PMC_STATE_DECR_PROFILE    0x10
91#define	PMC_STATE_PROFILE_KERN    0x11
92#define	PMC_STATE_TRACE_KERN      0x20
93#define	PMC_STATE_TRACE_USER      0x21
94
95