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Linux/arch/s390/oprofile/hwsampler.h

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  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);
105 unsigned long hwsampler_query_min_interval(void);
106 unsigned long hwsampler_query_max_interval(void);
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_*/
114 

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