sys/arch/i386/include/pmc.h

   1 /*      $NetBSD: pmc.h,v 1.8 2007/04/16 19:12:18 ad Exp $       */
   2
   3 /*-
   4  * Copyright (c) 2000 Zembu Labs, Inc.
   5  * All rights reserved.
   6  *
   7  * Author: Jason R. Thorpe <thorpej@zembu.com>
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by Zembu Labs, Inc.
  20  * 4. Neither the name of Zembu Labs nor the names of its employees may
  21  *    be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY ZEMBU LABS, INC. ``AS IS'' AND ANY EXPRESS
  25  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAR-
  26  * RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DIS-
  27  * CLAIMED.  IN NO EVENT SHALL ZEMBU LABS BE LIABLE FOR ANY DIRECT, INDIRECT,
  28  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  33  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 #ifndef _I386_PMC_H_
  37 #define _I386_PMC_H_
  38
  39 #define PMC_CLASS_I586          0x10000         /* i586-compatible */
  40 #define PMC_TYPE_I586_TSC       0x10001         /* cycle counter */
  41 #define PMC_TYPE_I586_PMCx      0x10002         /* performance counter */
  42
  43 #define PMC_CLASS_I686          0x20000         /* i686-compatible */
  44 #define PMC_TYPE_I686_TSC       0x20001         /* cycle counter */
  45 #define PMC_TYPE_I686_PMCx      0x20002         /* performance counter */
  46
  47 #define PMC_CLASS_K7            0x30000         /* K7-compatible */
  48 #define PMC_TYPE_K7_TSC         0x30001         /* cycle counter */
  49 #define PMC_TYPE_K7_PMCx        0x30002         /* performance counter */
  50
  51 /*
  52  * Each PMC event on the x86 is associated with a processor unit.  We
  53  * encode the unit in the upper 16 bits of the event ID.
  54  */
  55 #define __PMC_EVID_EVENT_MASK   0x0000ffff
  56 #define __PMC_EVID_UNIT_MASK    0xffff0000
  57
  58 #define __PMC_UNIT(x)           ((x) << 16)
  59 #define __PMC_GET_UNIT(x)       (((x) & __PMC_EVID_UNIT_MASK) >> 16)
  60 #define __PMC_GET_EVENT(x)      ((x) & __PMC_EVID_EVENT_MASK)
  61
  62 #if defined(_KERNEL)
  63 /*
  64  * LEGACY PMC support
  65  */
  66 struct x86_pmc_info_args;
  67 struct x86_pmc_startstop_args;
  68 struct x86_pmc_read_args;
  69 int     pmc_info(struct lwp *, struct x86_pmc_info_args *,
  70             register_t *);
  71 int     pmc_startstop(struct lwp *, struct x86_pmc_startstop_args *,
  72             register_t *);
  73 int     pmc_read(struct lwp *, struct x86_pmc_read_args *,
  74             register_t *);
  75 /* END LEGACY PMC SUPPORT */
  76
  77 #define pmc_md_fork(p1,p2)
  78 #define pmc_get_num_counters()                  (0)
  79 #define pmc_get_counter_type(c)                 (0)
  80 #define pmc_save_context(p)
  81 #define pmc_restore_context(p)
  82 #define pmc_enable_counter(p,c)
  83 #define pmc_disable_counter(p,c)
  84 #define pmc_accumulate(p1,p2)
  85 #define pmc_process_exit(p1)
  86 #define pmc_counter_isconfigured(p,c)           (0)
  87 #define pmc_counter_isrunning(p,c)              (0)
  88 #define pmc_start_profiling(c,f)                (0)
  89 #define pmc_stop_profiling(c)                   (0)
  90 #define pmc_alloc_kernel_counter(c,f)           (0)
  91 #define pmc_free_kernel_counter(c)              (0)
  92 #define pmc_configure_counter(p,c,f)            (0)
  93 #define pmc_get_counter_value(p,c,f,pv)         (0)
  94
  95 #define PMC_ENABLED(p)          (0)
  96
  97 #endif /* _KERNEL */
  98
  99 #endif /* _I386_PMC_H_ */