1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Auxtrace support for s390 CPU measurement sampling facility
4 *
5 * Copyright IBM Corp. 2018
6 * Author(s): Hendrik Brueckner <brueckner@linux.ibm.com>
7 * Thomas Richter <tmricht@linux.ibm.com>
8 */
9 #ifndef S390_CPUMSF_KERNEL_H
10 #define S390_CPUMSF_KERNEL_H
11
12 #define S390_CPUMSF_PAGESZ 4096 /* Size of sample block units */
13 #define S390_CPUMSF_DIAG_DEF_FIRST 0x8001 /* Diagnostic entry lowest id */
14
15 struct hws_basic_entry {
16 unsigned int def:16; /* 0-15 Data Entry Format */
17 unsigned int R:4; /* 16-19 reserved */
18 unsigned int U:4; /* 20-23 Number of unique instruct. */
19 unsigned int z:2; /* zeros */
20 unsigned int T:1; /* 26 PSW DAT mode */
21 unsigned int W:1; /* 27 PSW wait state */
22 unsigned int P:1; /* 28 PSW Problem state */
23 unsigned int AS:2; /* 29-30 PSW address-space control */
24 unsigned int I:1; /* 31 entry valid or invalid */
25 unsigned int CL:2; /* 32-33 Configuration Level */
26 unsigned int:14;
27 unsigned int prim_asn:16; /* primary ASN */
28 unsigned long long ia; /* Instruction Address */
29 unsigned long long gpp; /* Guest Program Parameter */
30 unsigned long long hpp; /* Host Program Parameter */
31 };
32
33 struct hws_diag_entry {
34 unsigned int def:16; /* 0-15 Data Entry Format */
35 unsigned int R:15; /* 16-19 and 20-30 reserved */
36 unsigned int I:1; /* 31 entry valid or invalid */
37 u8 data[]; /* Machine-dependent sample data */
38 };
39
40 struct hws_combined_entry {
41 struct hws_basic_entry basic; /* Basic-sampling data entry */
42 struct hws_diag_entry diag; /* Diagnostic-sampling data entry */
43 };
44
45 struct hws_trailer_entry {
46 union {
47 struct {
48 unsigned int f:1; /* 0 - Block Full Indicator */
49 unsigned int a:1; /* 1 - Alert request control */
50 unsigned int t:1; /* 2 - Timestamp format */
51 unsigned int:29; /* 3 - 31: Reserved */
52 unsigned int bsdes:16; /* 32-47: size of basic SDE */
53 unsigned int dsdes:16; /* 48-63: size of diagnostic SDE */
54 };
55 unsigned long long flags; /* 0 - 64: All indicators */
56 };
57 unsigned long long overflow; /* 64 - sample Overflow count */
58 unsigned char timestamp[16]; /* 16 - 31 timestamp */
59 unsigned long long reserved1; /* 32 -Reserved */
60 unsigned long long reserved2; /* */
61 union { /* 48 - reserved for programming use */
62 struct {
63 unsigned long long clock_base:1; /* in progusage2 */
64 unsigned long long progusage1:63;
65 unsigned long long progusage2;
66 };
67 unsigned long long progusage[2];
68 };
69 };
70
71 #endif