usr/src/psm/promif/ieee1275/sun4/prom_set_traptable.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 1994, by Sun Microsystems, Inc.
  24  * All rights reserved.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <sys/promif.h>
  30 #include <sys/promimpl.h>
  31
  32 /*
  33  * This interface allows the client to safely take over the %tba by
  34  * the prom's service. The prom will take care of the quiescence of
  35  * interrupts and handle any pending soft interrupts.
  36  */
  37 void
  38 prom_set_traptable(void *tba_addr)
  39 {
  40         cell_t ci[4];
  41
  42         ci[0] = p1275_ptr2cell("SUNW,set-trap-table");  /* Service name */
  43         ci[1] = (cell_t) 1;                     /* #argument cells */
  44         ci[2] = (cell_t) 0;                     /* #result cells */
  45         ci[3] = p1275_ptr2cell(tba_addr);       /* Arg1: tba address */
  46
  47         promif_preprom();
  48         (void) p1275_cif_handler(&ci);
  49         promif_postprom();
  50 }