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 72