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/sparc64/sparc64/cheetah.c

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    1 /*-
    2  * Copyright (c) 2003 Jake Burkholder.
    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 AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/6.0/sys/sparc64/sparc64/cheetah.c 122464 2003-11-11 06:41:54Z jake $
   27  */
   28 
   29 #include "opt_pmap.h"
   30 
   31 #include <sys/param.h>
   32 #include <sys/linker_set.h>
   33 #include <sys/proc.h>
   34 #include <sys/lock.h>
   35 #include <sys/mutex.h>
   36 #include <sys/smp.h>
   37 #include <sys/sysctl.h>
   38 #include <sys/systm.h>
   39 
   40 #include <vm/vm.h>
   41 #include <vm/pmap.h>
   42 
   43 #include <machine/cache.h>
   44 #include <machine/cpufunc.h>
   45 #include <machine/smp.h>
   46 #include <machine/tlb.h>
   47 
   48 /*
   49  * Enable level 1 caches.
   50  */
   51 void
   52 cheetah_cache_enable(void)
   53 {
   54 }
   55 
   56 /*
   57  * Flush all lines from the level 1 caches.
   58  */
   59 void
   60 cheetah_cache_flush(void)
   61 {
   62 }
   63 
   64 /*
   65  * Flush a physical page from the data cache.
   66  */
   67 void
   68 cheetah_dcache_page_inval(vm_paddr_t spa)
   69 {
   70         vm_paddr_t pa;
   71         void *cookie;
   72 
   73         KASSERT((spa & PAGE_MASK) == 0,
   74             ("dcache_page_inval: pa not page aligned"));
   75         cookie = ipi_dcache_page_inval(tl_ipi_cheetah_dcache_page_inval, spa);
   76         for (pa = spa; pa < spa + PAGE_SIZE; pa += cache.dc_linesize)
   77                 stxa_sync(pa, ASI_DCACHE_INVALIDATE, 0);
   78         ipi_wait(cookie);
   79 }
   80 
   81 /*
   82  * Flush a physical page from the intsruction cache.  Instruction cache
   83  * consistency is maintained by hardware.
   84  */
   85 void
   86 cheetah_icache_page_inval(vm_paddr_t pa)
   87 {
   88 }
   89 
   90 void
   91 cheetah_tlb_flush_user(void)
   92 {
   93         panic("cheetah_tlb_flush_user");
   94 }

Cache object: 23be0495e7aa884f6a1322779a433349


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