hwpmc_core.h

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    1 /*-
    2  * Copyright (c) 2008 Joseph Koshy
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/7.3/sys/dev/hwpmc/hwpmc_core.h 193634 2009-06-07 10:00:35Z fabient $
   27  */
   28 
   29 #ifndef _DEV_HWPMC_CORE_H_
   30 #define _DEV_HWPMC_CORE_H_ 1
   31 
   32 /*
   33  * Fixed-function PMCs.
   34  */
   35 struct pmc_md_iaf_op_pmcallocate {
   36         uint16_t        pm_iaf_flags;   /* additional flags */
   37 };
   38 
   39 #define IAF_OS          0x1
   40 #define IAF_USR         0x2
   41 #define IAF_ANY         0x4
   42 #define IAF_PMI         0x8
   43 
   44 /*
   45  * Programmable PMCs.
   46  */
   47 struct pmc_md_iap_op_pmcallocate {
   48         uint32_t        pm_iap_config;
   49 };
   50 
   51 #define IAP_EVSEL(C)    ((C) & 0xFF)
   52 #define IAP_UMASK(C)    ((C) & 0xFF00)
   53 #define IAP_USR         (1 << 16)
   54 #define IAP_OS          (1 << 17)
   55 #define IAP_EDGE        (1 << 18)
   56 #define IAP_INT         (1 << 20)
   57 #define IAP_ANY         (1 << 21)
   58 #define IAP_EN          (1 << 22)
   59 #define IAP_INV         (1 << 23)
   60 #define IAP_CMASK(C)    (((C) & 0xFF) << 24)
   61 
   62 #ifdef  _KERNEL
   63 
   64 /*
   65  * Fixed-function counters.
   66  */
   67 #define IAF_MASK                                0xF
   68 
   69 #define IAF_CTR0                                0x309
   70 #define IAF_CTR1                                0x30A
   71 #define IAF_CTR2                                0x30B
   72 
   73 #define IAF_OFFSET                              32
   74 #define IAF_CTRL                                0x38D
   75 
   76 /*
   77  * Programmable counters.
   78  */
   79 #define IAP_PMC0                                0x0C1
   80 #define IAP_PMC1                                0x0C2
   81 
   82 #define IAP_EVSEL0                              0x186
   83 #define IAP_EVSEL1                              0x187
   84 
   85 /*
   86  * Simplified programming interface in Intel Performance Architecture
   87  * v2 and later.
   88  */
   89 #define IA_GLOBAL_STATUS                        0x38E
   90 #define IA_GLOBAL_CTRL                          0x38F
   91 #define IA_GLOBAL_OVF_CTRL                      0x390
   92 
   93 #define IA_GLOBAL_STATUS_FLAG_CONDCHG           (1ULL << 63)
   94 #define IA_GLOBAL_STATUS_FLAG_OVFBUF            (1ULL << 62)
   95 
   96 struct pmc_md_iaf_pmc {
   97         uint64_t        pm_iaf_ctrl;
   98 };
   99 
  100 struct pmc_md_iap_pmc {
  101         uint32_t        pm_iap_evsel;
  102 };
  103 
  104 /*
  105  * Prototypes.
  106  */
  107 
  108 int     pmc_core_initialize(struct pmc_mdep *_md, int _maxcpu);
  109 void    pmc_core_finalize(struct pmc_mdep *_md);
  110 
  111 void    pmc_core_mark_started(int _cpu, int _pmc);
  112 
  113 int     pmc_iaf_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width);
  114 void    pmc_iaf_finalize(struct pmc_mdep *_md);
  115 
  116 int     pmc_iap_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width,
  117             int _flags);
  118 void    pmc_iap_finalize(struct pmc_mdep *_md);
  119 
  120 #endif  /* _KERNEL */
  121 #endif  /* _DEV_HWPMC_CORE_H */

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FreeBSD/Linux Kernel Cross Reference sys/dev/hwpmc/hwpmc_core.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/hwpmc/hwpmc_core.h