FreeBSD/Linux Kernel Cross Reference
sys/arm/qemu/virt_machdep.c

     /*-
      * Copyright (c) 2015 Andrew Turner
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     */
    
    #include "opt_platform.h"
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/11.0/sys/arm/qemu/virt_machdep.c 299073 2016-05-04 16:24:12Z bz $");
    
    #define _ARM32_BUS_DMA_PRIVATE
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/devmap.h>
    
    #include <vm/vm.h>
    
    #include <machine/bus.h>
    #include <machine/platform.h>
    #include <machine/platformvar.h>
    
    #include <arm/qemu/virt_mp.h>
    
    #include "platform_if.h"
    
    struct arm32_dma_range *
    bus_dma_get_range(void)
    {
    
            return (NULL);
    }
    
    int
    bus_dma_get_range_nb(void)
    {
    
            return (0);
    }
    
    void
    cpu_reset(void)
    {
    
            while (1);
    }
    
    static vm_offset_t
    virt_lastaddr(platform_t plat)
    {
    
            return (devmap_lastaddr());
    }
    
    /*
     * Set up static device mappings.
     */
    static int
    virt_devmap_init(platform_t plat)
    {
    
            devmap_add_entry(0x09000000, 0x100000); /* Uart */
            return (0);
    }
    
    static platform_method_t virt_methods[] = {
            PLATFORMMETHOD(platform_devmap_init,    virt_devmap_init),
            PLATFORMMETHOD(platform_lastaddr,       virt_lastaddr),
    
    #ifdef SMP
            PLATFORMMETHOD(platform_mp_start_ap,    virt_mp_start_ap),
            PLATFORMMETHOD(platform_mp_setmaxid,    virt_mp_setmaxid),
    #endif
    
            PLATFORMMETHOD_END,
    };
    
    FDT_PLATFORM_DEF(virt, "virt", 0, "linux,dummy-virt", 1);
   
   static int
   gem5_devmap_init(platform_t plat)
   {
   
           devmap_add_entry(0x1c090000, 0x100000); /* Uart */
           return (0);
   }
   
   static platform_method_t gem5_methods[] = {
           PLATFORMMETHOD(platform_devmap_init,    gem5_devmap_init),
           PLATFORMMETHOD(platform_lastaddr,       virt_lastaddr),
   
           PLATFORMMETHOD_END,
   };
   
   FDT_PLATFORM_DEF(gem5, "gem5", 0, "arm,vexpress", 1);

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