1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Support for s390 CPU measurement counter set diagnostic facility
 4 *
 5 * Copyright IBM Corp. 2019
 6   Author(s): Hendrik Brueckner <brueckner@linux.ibm.com>
 7 *		Thomas Richter <tmricht@linux.ibm.com>
 8 */
 9#ifndef S390_CPUMCF_KERNEL_H
10#define S390_CPUMCF_KERNEL_H
11
12#define	S390_CPUMCF_DIAG_DEF	0xfeef	/* Counter diagnostic entry ID */
13#define	PERF_EVENT_CPUM_CF_DIAG	0xBC000	/* Event: Counter sets */
14
15struct cf_ctrset_entry {	/* CPU-M CF counter set entry (8 byte) */
16	unsigned int def:16;	/* 0-15  Data Entry Format */
17	unsigned int set:16;	/* 16-23 Counter set identifier */
18	unsigned int ctr:16;	/* 24-39 Number of stored counters */
19	unsigned int res1:16;	/* 40-63 Reserved */
20};
21
22struct cf_trailer_entry {	/* CPU-M CF trailer for raw traces (64 byte) */
23	/* 0 - 7 */
24	union {
25		struct {
26			unsigned int clock_base:1;	/* TOD clock base */
27			unsigned int speed:1;		/* CPU speed */
28			/* Measurement alerts */
29			unsigned int mtda:1;	/* Loss of MT ctr. data alert */
30			unsigned int caca:1;	/* Counter auth. change alert */
31			unsigned int lcda:1;	/* Loss of counter data alert */
32		};
33		unsigned long flags;		/* 0-63    All indicators */
34	};
35	/* 8 - 15 */
36	unsigned int cfvn:16;			/* 64-79   Ctr First Version */
37	unsigned int csvn:16;			/* 80-95   Ctr Second Version */
38	unsigned int cpu_speed:32;		/* 96-127  CPU speed */
39	/* 16 - 23 */
40	unsigned long timestamp;		/* 128-191 Timestamp (TOD) */
41	/* 24 - 55 */
42	union {
43		struct {
44			unsigned long progusage1;
45			unsigned long progusage2;
46			unsigned long progusage3;
47			unsigned long tod_base;
48		};
49		unsigned long progusage[4];
50	};
51	/* 56 - 63 */
52	unsigned int mach_type:16;		/* Machine type */
53	unsigned int res1:16;			/* Reserved */
54	unsigned int res2:32;			/* Reserved */
55};
56
57#define	CPUMF_CTR_SET_BASIC	0	/* Basic Counter Set */
58#define	CPUMF_CTR_SET_USER	1	/* Problem-State Counter Set */
59#define	CPUMF_CTR_SET_CRYPTO	2	/* Crypto-Activity Counter Set */
60#define	CPUMF_CTR_SET_EXT	3	/* Extended Counter Set */
61#define	CPUMF_CTR_SET_MT_DIAG	4	/* MT-diagnostic Counter Set */
62#endif