Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / obp / tools / promif / common / prom_mapin.c

/*
* ========== Copyright Header Begin ==========================================
*
* Hypervisor Software File: prom_mapin.c
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/*
* id: @(#)prom_mapin.c 1.5 00/08/08
* purpose:
* copyright: Copyright 1995-2000, 2003 Sun Microsystems, Inc.
* All Rights Reserved
* Use is subject to license terms.
*/

#include <sys/promif.h>
#include <sys/promimpl.h>

void *
prom_mapin(ihandle_t instance, uint_t *adrs, uint_t adr_cells, uint_t size)
{
       cell_t ci[10];
       uint_t retval, num_args, result_cell, i;

       num_args = adr_cells + 3;
       result_cell = num_args + 3;

       ci[0] = p1275_ptr2cell("call-method");  /* Service name */
       ci[1] = (cell_t)num_args;               /* #argument cells */
       ci[2] = (cell_t)2;                      /* #result cells */
       ci[3] = p1275_ptr2cell("map-in");       /* Arg1: method name */
       ci[4] = p1275_ihandle2cell(instance);   /* Arg2: dev-node ihandle */
       ci[5] = p1275_int2cell(size);           /* Arg3: size */

       for (i = 0; i < adr_cells; i++) {
               ci[i + 6] = p1275_int2cell(adrs[i]);
       }

       retval = p1275_cif_handler(&ci);

       if (retval != 0)
               return ((void *)-1);
       if (ci[result_cell] != 0)               /* Res1: Catch result */
               return ((void *)-1);

       return ((void *)ci[result_cell + 1]);   /* Res2: virt addr */

}