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/mips/beri/beri_mp.h

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    1 /*-
    2  * Copyright (c) 2014 SRI International
    3  * All rights reserved.
    4  *
    5  * This software was developed by SRI International and the University of
    6  * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-11-C-0249)
    7  * ("MRC2"), as part of the DARPA MRC research programme.
    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  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  * $FreeBSD: releng/12.0/sys/mips/beri/beri_mp.h 332441 2018-04-12 17:43:19Z br $
   31  */
   32 
   33 static inline int
   34 beri_get_core(void)
   35 {
   36         uint32_t cinfo;
   37 
   38         cinfo = mips_rd_cinfo();
   39         return (cinfo & 0xffff);
   40 }
   41 
   42 static inline int
   43 beri_get_ncores(void)
   44 {
   45         uint32_t cinfo;
   46 
   47         cinfo = mips_rd_cinfo();
   48         return ((cinfo >> 16) + 1);
   49 }
   50 
   51 static inline int
   52 beri_get_thread(void)
   53 {
   54         uint32_t tinfo;
   55 
   56         tinfo = mips_rd_tinfo();
   57         return (tinfo & 0xffff);
   58 }
   59 
   60 static inline int
   61 beri_get_nthreads(void)
   62 {
   63         uint32_t tinfo;
   64 
   65         tinfo = mips_rd_tinfo();
   66         return ((tinfo >> 16) + 1);
   67 }
   68 
   69 static inline int
   70 beri_get_cpu(void)
   71 {
   72 
   73         return ((beri_get_core() * beri_get_nthreads()) + beri_get_thread());
   74 }
   75 
   76 static inline int
   77 beri_get_ncpus(void)
   78 {
   79 
   80         return(beri_get_ncores() * beri_get_nthreads());
   81 }
   82 
   83 void beripic_setup_ipi(device_t dev, u_int tid, u_int ipi_irq);
   84 void beripic_send_ipi(device_t dev, u_int tid);
   85 void beripic_clear_ipi(device_t dev, u_int tid);

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