| Heinz Graalfs | ec6a3df | 2011-01-21 10:06:52 +0000 | [diff] [blame] | 1 | /* |
| 2 | * CPUMF HW sampler functions and internal structures |
| 3 | * |
| 4 | * Copyright IBM Corp. 2010 |
| 5 | * Author(s): Heinz Graalfs <graalfs@de.ibm.com> |
| 6 | */ |
| 7 | |
| 8 | #ifndef HWSAMPLER_H_ |
| 9 | #define HWSAMPLER_H_ |
| 10 | |
| 11 | #include <linux/workqueue.h> |
| 12 | |
| 13 | struct hws_qsi_info_block /* QUERY SAMPLING information block */ |
| 14 | { /* Bit(s) */ |
| 15 | unsigned int b0_13:14; /* 0-13: zeros */ |
| 16 | unsigned int as:1; /* 14: sampling authorisation control*/ |
| 17 | unsigned int b15_21:7; /* 15-21: zeros */ |
| 18 | unsigned int es:1; /* 22: sampling enable control */ |
| 19 | unsigned int b23_29:7; /* 23-29: zeros */ |
| 20 | unsigned int cs:1; /* 30: sampling activation control */ |
| 21 | unsigned int:1; /* 31: reserved */ |
| 22 | unsigned int bsdes:16; /* 4-5: size of sampling entry */ |
| 23 | unsigned int:16; /* 6-7: reserved */ |
| 24 | unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */ |
| 25 | unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/ |
| 26 | unsigned long tear; /* 24-31: TEAR contents */ |
| 27 | unsigned long dear; /* 32-39: DEAR contents */ |
| 28 | unsigned int rsvrd0; /* 40-43: reserved */ |
| 29 | unsigned int cpu_speed; /* 44-47: CPU speed */ |
| 30 | unsigned long long rsvrd1; /* 48-55: reserved */ |
| 31 | unsigned long long rsvrd2; /* 56-63: reserved */ |
| 32 | }; |
| 33 | |
| 34 | struct hws_ssctl_request_block /* SET SAMPLING CONTROLS req block */ |
| 35 | { /* bytes 0 - 7 Bit(s) */ |
| 36 | unsigned int s:1; /* 0: maximum buffer indicator */ |
| 37 | unsigned int h:1; /* 1: part. level reserved for VM use*/ |
| 38 | unsigned long b2_53:52; /* 2-53: zeros */ |
| 39 | unsigned int es:1; /* 54: sampling enable control */ |
| 40 | unsigned int b55_61:7; /* 55-61: - zeros */ |
| 41 | unsigned int cs:1; /* 62: sampling activation control */ |
| 42 | unsigned int b63:1; /* 63: zero */ |
| 43 | unsigned long interval; /* 8-15: sampling interval */ |
| 44 | unsigned long tear; /* 16-23: TEAR contents */ |
| 45 | unsigned long dear; /* 24-31: DEAR contents */ |
| 46 | /* 32-63: */ |
| 47 | unsigned long rsvrd1; /* reserved */ |
| 48 | unsigned long rsvrd2; /* reserved */ |
| 49 | unsigned long rsvrd3; /* reserved */ |
| 50 | unsigned long rsvrd4; /* reserved */ |
| 51 | }; |
| 52 | |
| 53 | struct hws_cpu_buffer { |
| 54 | unsigned long first_sdbt; /* @ of 1st SDB-Table for this CP*/ |
| 55 | unsigned long worker_entry; |
| 56 | unsigned long sample_overflow; /* taken from SDB ... */ |
| 57 | struct hws_qsi_info_block qsi; |
| 58 | struct hws_ssctl_request_block ssctl; |
| 59 | struct work_struct worker; |
| 60 | atomic_t ext_params; |
| 61 | unsigned long req_alert; |
| 62 | unsigned long loss_of_sample_data; |
| 63 | unsigned long invalid_entry_address; |
| 64 | unsigned long incorrect_sdbt_entry; |
| 65 | unsigned long sample_auth_change_alert; |
| 66 | unsigned int finish:1; |
| 67 | unsigned int oom:1; |
| 68 | unsigned int stop_mode:1; |
| 69 | }; |
| 70 | |
| 71 | struct hws_data_entry { |
| 72 | unsigned int def:16; /* 0-15 Data Entry Format */ |
| 73 | unsigned int R:4; /* 16-19 reserved */ |
| 74 | unsigned int U:4; /* 20-23 Number of unique instruct. */ |
| 75 | unsigned int z:2; /* zeros */ |
| 76 | unsigned int T:1; /* 26 PSW DAT mode */ |
| 77 | unsigned int W:1; /* 27 PSW wait state */ |
| 78 | unsigned int P:1; /* 28 PSW Problem state */ |
| 79 | unsigned int AS:2; /* 29-30 PSW address-space control */ |
| 80 | unsigned int I:1; /* 31 entry valid or invalid */ |
| 81 | unsigned int:16; |
| 82 | unsigned int prim_asn:16; /* primary ASN */ |
| 83 | unsigned long long ia; /* Instruction Address */ |
| 84 | unsigned long long lpp; /* Logical-Partition Program Param. */ |
| 85 | unsigned long long vpp; /* Virtual-Machine Program Param. */ |
| 86 | }; |
| 87 | |
| 88 | struct hws_trailer_entry { |
| 89 | unsigned int f:1; /* 0 - Block Full Indicator */ |
| 90 | unsigned int a:1; /* 1 - Alert request control */ |
| 91 | unsigned long:62; /* 2 - 63: Reserved */ |
| 92 | unsigned long overflow; /* 64 - sample Overflow count */ |
| 93 | unsigned long timestamp; /* 16 - time-stamp */ |
| 94 | unsigned long timestamp1; /* */ |
| 95 | unsigned long reserved1; /* 32 -Reserved */ |
| 96 | unsigned long reserved2; /* */ |
| 97 | unsigned long progusage1; /* 48 - reserved for programming use */ |
| 98 | unsigned long progusage2; /* */ |
| 99 | }; |
| 100 | |
| 101 | int hwsampler_setup(void); |
| 102 | int hwsampler_shutdown(void); |
| 103 | int hwsampler_allocate(unsigned long sdbt, unsigned long sdb); |
| 104 | int hwsampler_deallocate(void); |
| Martin Schwidefsky | 3d8dcb3 | 2011-05-10 17:13:42 +0200 | [diff] [blame] | 105 | unsigned long hwsampler_query_min_interval(void); |
| 106 | unsigned long hwsampler_query_max_interval(void); |
| Heinz Graalfs | ec6a3df | 2011-01-21 10:06:52 +0000 | [diff] [blame] | 107 | int hwsampler_start_all(unsigned long interval); |
| 108 | int hwsampler_stop_all(void); |
| 109 | int hwsampler_deactivate(unsigned int cpu); |
| 110 | int hwsampler_activate(unsigned int cpu); |
| 111 | unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu); |
| 112 | |
| 113 | #endif /*HWSAMPLER_H_*/ |