The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/arm/include/pmc_mdep.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2009 Rui Paulo <rpaulo@FreeBSD.org>
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   19  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
   20  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   22  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   24  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   25  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   26  * POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD$
   29  */
   30 
   31 #ifndef _MACHINE_PMC_MDEP_H_
   32 #define _MACHINE_PMC_MDEP_H_
   33 
   34 #define PMC_MDEP_CLASS_INDEX_ARMV7      1
   35 /*
   36  * On the ARM platform we support the following PMCs.
   37  *
   38  * ARMV7        ARM Cortex-A processors
   39  */
   40 #include <dev/hwpmc/hwpmc_armv7.h>
   41 
   42 union pmc_md_op_pmcallocate {
   43         uint64_t        __pad[4];
   44 };
   45 
   46 /* Logging */
   47 #define PMCLOG_READADDR         PMCLOG_READ32
   48 #define PMCLOG_EMITADDR         PMCLOG_EMIT32
   49 
   50 #ifdef  _KERNEL
   51 union pmc_md_pmc {
   52         struct pmc_md_armv7_pmc         pm_armv7;
   53 };
   54 
   55 #define PMC_IN_KERNEL_STACK(S,START,END)                \
   56         ((S) >= (START) && (S) < (END))
   57 #define PMC_IN_KERNEL(va)       INKERNEL((va))
   58 
   59 #define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS)
   60 
   61 #define PMC_TRAPFRAME_TO_PC(TF)         ((TF)->tf_pc)
   62 #define PMC_TRAPFRAME_TO_FP(TF)         ((TF)->tf_r11)
   63 #define PMC_TRAPFRAME_TO_SVC_SP(TF)     ((TF)->tf_svc_sp)
   64 #define PMC_TRAPFRAME_TO_USR_SP(TF)     ((TF)->tf_usr_sp)
   65 #define PMC_TRAPFRAME_TO_SVC_LR(TF)     ((TF)->tf_svc_lr)
   66 #define PMC_TRAPFRAME_TO_USR_LR(TF)     ((TF)->tf_usr_lr)
   67 
   68 /* Build a fake kernel trapframe from current instruction pointer. */
   69 #define PMC_FAKE_TRAPFRAME(TF)                                          \
   70         do {                                                            \
   71         (TF)->tf_spsr = PSR_SVC32_MODE;                                 \
   72         __asm __volatile("mov %0, pc" : "=r" ((TF)->tf_pc));            \
   73         __asm __volatile("mov %0, r11" : "=r" ((TF)->tf_r11));          \
   74         } while (0)
   75 
   76 /*
   77  * Prototypes
   78  */
   79 struct pmc_mdep *pmc_armv7_initialize(void);
   80 void            pmc_armv7_finalize(struct pmc_mdep *_md);
   81 #endif /* _KERNEL */
   82 
   83 #endif /* !_MACHINE_PMC_MDEP_H_ */

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