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 * Allocate retained physical memory 34 * Returns 0: Success; Non-zero: failure. 35 * Returns *phys_hi, *phys_lo only if successful. 36 */ 37 int 38 prom_retain(char *id, size_t size, u_int align, unsigned long long *physaddr) 39 { 40 cell_t ci[11]; 41 int rv; 42 ihandle_t imemory = prom_memory_ihandle(); 43 44 if ((imemory == (ihandle_t)-1)) 45 return (-1); 46 47 ci[0] = p1275_ptr2cell("call-method"); /* Service name */ 48 ci[1] = (cell_t)5; /* #argument cells */ 49 ci[2] = (cell_t)3; /* #result cells */ 50 ci[3] = p1275_ptr2cell("SUNW,retain"); /* Arg1: Method name */ 51 ci[4] = p1275_ihandle2cell(imemory); /* Arg2: memory ihandle */ 52 ci[5] = p1275_uint2cell(align); /* Arg2: SA1: align */ 53 ci[6] = p1275_size2cell(size); /* Arg3: SA2: size */ 54 ci[7] = p1275_ptr2cell(id); /* Arg4: SA3: id name */ 55 56 promif_preprom(); 57 rv = p1275_cif_handler(&ci); 58 promif_postprom(); 59 60 if (rv != 0) 61 return (rv); /* Service "call-method" failed */ 62 if (ci[8] != 0) /* Res1: catch-result */ 63 return (-1); /* Method "SUNW,retain" failed */ 64 65 *physaddr = p1275_cells2ull(ci[9], ci[10]); 66 /* Res3: base.hi, Res4: base.lo */ 67 return (0); 68 } 69