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_ */ 95