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  * Copyright (c) 2009 Rui Paulo <rpaulo@FreeBSD.org>
    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 ``AS IS'' AND ANY EXPRESS OR
   15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   17  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
   18  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   20  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   22  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   23  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   24  * POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/11.1/sys/arm/include/pmc_mdep.h 280737 2015-03-27 08:47:16Z bz $
   27  */
   28 
   29 #ifndef _MACHINE_PMC_MDEP_H_
   30 #define _MACHINE_PMC_MDEP_H_
   31 
   32 #define PMC_MDEP_CLASS_INDEX_XSCALE     1
   33 #define PMC_MDEP_CLASS_INDEX_ARMV7      1
   34 /*
   35  * On the ARM platform we support the following PMCs.
   36  *
   37  * XSCALE       Intel XScale processors
   38  * ARMV7        ARM Cortex-A processors
   39  */
   40 #include <dev/hwpmc/hwpmc_xscale.h>
   41 #include <dev/hwpmc/hwpmc_armv7.h>
   42 
   43 union pmc_md_op_pmcallocate {
   44         uint64_t        __pad[4];
   45 };
   46 
   47 /* Logging */
   48 #define PMCLOG_READADDR         PMCLOG_READ32
   49 #define PMCLOG_EMITADDR         PMCLOG_EMIT32
   50 
   51 #ifdef  _KERNEL
   52 union pmc_md_pmc {
   53         struct pmc_md_xscale_pmc        pm_xscale;
   54         struct pmc_md_armv7_pmc         pm_armv7;
   55 };
   56 
   57 #define PMC_IN_KERNEL_STACK(S,START,END)                \
   58         ((S) >= (START) && (S) < (END))
   59 #define PMC_IN_KERNEL(va)       INKERNEL((va))
   60 
   61 #define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS)
   62 
   63 #define PMC_TRAPFRAME_TO_PC(TF)         ((TF)->tf_pc)
   64 #define PMC_TRAPFRAME_TO_FP(TF)         ((TF)->tf_r11)
   65 #define PMC_TRAPFRAME_TO_SVC_SP(TF)     ((TF)->tf_svc_sp)
   66 #define PMC_TRAPFRAME_TO_USR_SP(TF)     ((TF)->tf_usr_sp)
   67 #define PMC_TRAPFRAME_TO_SVC_LR(TF)     ((TF)->tf_svc_lr)
   68 #define PMC_TRAPFRAME_TO_USR_LR(TF)     ((TF)->tf_usr_lr)
   69 
   70 /* Build a fake kernel trapframe from current instruction pointer. */
   71 #define PMC_FAKE_TRAPFRAME(TF)                                          \
   72         do {                                                            \
   73         __asm __volatile("mov %0, pc" : "=r" ((TF)->tf_pc));            \
   74         } while (0)
   75 
   76 /*
   77  * Prototypes
   78  */
   79 struct pmc_mdep *pmc_xscale_initialize(void);
   80 void            pmc_xscale_finalize(struct pmc_mdep *_md);
   81 struct pmc_mdep *pmc_armv7_initialize(void);
   82 void            pmc_armv7_finalize(struct pmc_mdep *_md);
   83 #endif /* _KERNEL */
   84 
   85 #endif /* !_MACHINE_PMC_MDEP_H_ */

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