sys/arch/arm/include/pmc.h

   1 /*      $NetBSD: pmc.h,v 1.3 2002/08/09 05:27:10 thorpej Exp $  */
   2
   3 /*
   4  * Copyright (c) 2002 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Allen Briggs for Wasabi Systems, Inc.
   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 for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #ifndef _ARM_PMC_H_
  39 #define _ARM_PMC_H_
  40
  41 #define PMC_CLASS_I80200        0x10000         /* i80200-compatible */
  42 #define PMC_TYPE_I80200_CCNT    0x10001         /* cycle counter */
  43 #define PMC_TYPE_I80200_PMCx    0x10002         /* performance counter */
  44
  45 #if defined(_KERNEL)
  46
  47 #include <arm/cpuconf.h>
  48
  49 struct arm_pmc_funcs {
  50         void    (*fork)(struct proc *p1, struct proc *p2);
  51         int     (*num_counters)(void);
  52         int     (*counter_type)(int ctr);
  53         void    (*save_context)(struct proc *p);
  54         void    (*restore_context)(struct proc *p);
  55         void    (*enable_counter)(struct proc *p, int ctr);
  56         void    (*disable_counter)(struct proc *p, int ctr);
  57         void    (*accumulate)(struct proc *parent, struct proc *child);
  58         void    (*process_exit)(struct proc *p);
  59         int     (*configure_counter)(struct proc *p, int ctr, struct pmc_counter_cfg *cfg);
  60         int     (*get_counter_val)(struct proc *p, int ctr, int flags, uint64_t *pval);
  61         int     (*counter_isconfigured)(struct proc *p, int ctr);
  62         int     (*counter_isrunning)(struct proc *p, int ctr);
  63         int     (*start_profiling)(int ctr, struct pmc_counter_cfg *cfg);
  64         int     (*stop_profiling)(int ctr);
  65         int     (*alloc_kernel_ctr)(int ctr, struct pmc_counter_cfg *cfg);
  66         int     (*free_kernel_ctr)(int ctr);
  67 };
  68 extern struct arm_pmc_funcs *arm_pmc;
  69
  70 #define pmc_md_fork(p1,p2)              (arm_pmc->fork((p1),(p2)))
  71 #define pmc_get_num_counters()          (arm_pmc->num_counters())
  72 #define pmc_get_counter_type(c)         (arm_pmc->counter_type(c))
  73 #define pmc_save_context(p)             (arm_pmc->save_context(p))
  74 #define pmc_restore_context(p)          (arm_pmc->restore_context(p))
  75 #define pmc_enable_counter(p,c)         (arm_pmc->enable_counter((p),(c)))
  76 #define pmc_disable_counter(p,c)        (arm_pmc->disable_counter((p),(c)))
  77 #define pmc_accumulate(p1,p2)           (arm_pmc->accumulate((p1),(p2)))
  78 #define pmc_process_exit(p1)            (arm_pmc->process_exit(p))
  79 #define pmc_counter_isconfigured(p,c)   (arm_pmc->counter_isconfigured((p),(c)))
  80 #define pmc_counter_isrunning(p,c)      (arm_pmc->counter_isrunning((p),(c)))
  81 #define pmc_start_profiling(c,f)        (arm_pmc->start_profiling((c),(f)))
  82 #define pmc_stop_profiling(c)           (arm_pmc->stop_profiling((c)))
  83 #define pmc_alloc_kernel_counter(c,f)   (arm_pmc->alloc_kernel_ctr((c),(f)))
  84 #define pmc_free_kernel_counter(c)      (arm_pmc->free_kernel_ctr((c)))
  85 #define pmc_configure_counter(p,c,f)    \
  86                                 (arm_pmc->configure_counter((p),(c),(f)))
  87 #define pmc_get_counter_value(p,c,f,pv) \
  88                                 (arm_pmc->get_counter_val((p),(c),(f),(pv)))
  89
  90 #define PMC_ENABLED(p)                  (p)->p_md.pmc_enabled
  91
  92 #endif /* defined(_KERNEL) */
  93
  94 #endif /* _ARM_PMC_H_ */