17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*986fd29aSsetje * Common Development and Distribution License (the "License"). 6*986fd29aSsetje * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22*986fd29aSsetje * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23*986fd29aSsetje * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 277c478bd9Sstevel@tonic-gate 287c478bd9Sstevel@tonic-gate /* 297c478bd9Sstevel@tonic-gate * This file contains platform-dependent memory support routines, 307c478bd9Sstevel@tonic-gate * suitable for memory methods with 2-cell physical addresses. 317c478bd9Sstevel@tonic-gate * Use of these routines makes the caller platform-dependent, 327c478bd9Sstevel@tonic-gate * since the caller assumes knowledge of the physical layout of 337c478bd9Sstevel@tonic-gate * the machines address space. Generic programs should use the 347c478bd9Sstevel@tonic-gate * standard client interface memory allocators. 357c478bd9Sstevel@tonic-gate */ 367c478bd9Sstevel@tonic-gate 377c478bd9Sstevel@tonic-gate #include <sys/promif.h> 387c478bd9Sstevel@tonic-gate #include <sys/promimpl.h> 397c478bd9Sstevel@tonic-gate 407c478bd9Sstevel@tonic-gate ihandle_t 417c478bd9Sstevel@tonic-gate prom_memory_ihandle(void) 427c478bd9Sstevel@tonic-gate { 437c478bd9Sstevel@tonic-gate static ihandle_t imemory; 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate if (imemory != (ihandle_t)0) 467c478bd9Sstevel@tonic-gate return (imemory); 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate if (prom_getproplen(prom_chosennode(), "memory") != sizeof (ihandle_t)) 497c478bd9Sstevel@tonic-gate return (imemory = (ihandle_t)-1); 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate (void) prom_getprop(prom_chosennode(), "memory", (caddr_t)(&imemory)); 527c478bd9Sstevel@tonic-gate return (imemory); 537c478bd9Sstevel@tonic-gate } 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate /* 567c478bd9Sstevel@tonic-gate * Allocate physical memory, unmapped and possibly aligned. 577c478bd9Sstevel@tonic-gate * Returns 0: Success; Non-zero: failure. 587c478bd9Sstevel@tonic-gate * Returns *physaddr only if successful. 597c478bd9Sstevel@tonic-gate * 607c478bd9Sstevel@tonic-gate * This routine is suitable for platforms with 2-cell physical addresses 617c478bd9Sstevel@tonic-gate * and a single size cell in the "memory" node. 627c478bd9Sstevel@tonic-gate */ 637c478bd9Sstevel@tonic-gate int 64*986fd29aSsetje prom_allocate_phys(size_t size, uint_t align, unsigned long long *physaddr) 657c478bd9Sstevel@tonic-gate { 667c478bd9Sstevel@tonic-gate cell_t ci[10]; 677c478bd9Sstevel@tonic-gate int rv; 687c478bd9Sstevel@tonic-gate ihandle_t imemory = prom_memory_ihandle(); 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate if ((imemory == (ihandle_t)-1)) 717c478bd9Sstevel@tonic-gate return (-1); 727c478bd9Sstevel@tonic-gate 737c478bd9Sstevel@tonic-gate if (align == 0) 74*986fd29aSsetje align = (uint_t)1; 757c478bd9Sstevel@tonic-gate 767c478bd9Sstevel@tonic-gate ci[0] = p1275_ptr2cell("call-method"); /* Service name */ 777c478bd9Sstevel@tonic-gate ci[1] = (cell_t)4; /* #argument cells */ 787c478bd9Sstevel@tonic-gate ci[2] = (cell_t)3; /* #result cells */ 797c478bd9Sstevel@tonic-gate ci[3] = p1275_ptr2cell("claim"); /* Arg1: Method name */ 807c478bd9Sstevel@tonic-gate ci[4] = p1275_ihandle2cell(imemory); /* Arg2: memory ihandle */ 817c478bd9Sstevel@tonic-gate ci[5] = p1275_uint2cell(align); /* Arg3: SA1: align */ 827c478bd9Sstevel@tonic-gate ci[6] = p1275_size2cell(size); /* Arg4: SA2: size */ 837c478bd9Sstevel@tonic-gate 847c478bd9Sstevel@tonic-gate promif_preprom(); 857c478bd9Sstevel@tonic-gate rv = p1275_cif_handler(&ci); 867c478bd9Sstevel@tonic-gate promif_postprom(); 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate if (rv != 0) 897c478bd9Sstevel@tonic-gate return (rv); 907c478bd9Sstevel@tonic-gate if (p1275_cell2int(ci[7]) != 0) /* Res1: Catch result */ 917c478bd9Sstevel@tonic-gate return (-1); 927c478bd9Sstevel@tonic-gate 937c478bd9Sstevel@tonic-gate *physaddr = p1275_cells2ull(ci[8], ci[9]); 947c478bd9Sstevel@tonic-gate /* Res2: SR1: phys.hi ... Res3: SR2: phys.lo */ 957c478bd9Sstevel@tonic-gate return (0); 967c478bd9Sstevel@tonic-gate } 977c478bd9Sstevel@tonic-gate 987c478bd9Sstevel@tonic-gate /* 997c478bd9Sstevel@tonic-gate * Claim a region of physical memory, unmapped. 1007c478bd9Sstevel@tonic-gate * Returns 0: Success; Non-zero: failure. 1017c478bd9Sstevel@tonic-gate * 1027c478bd9Sstevel@tonic-gate * This routine is suitable for platforms with 2-cell physical addresses 1037c478bd9Sstevel@tonic-gate * and a single size cell in the "memory" node. 1047c478bd9Sstevel@tonic-gate */ 1057c478bd9Sstevel@tonic-gate int 1067c478bd9Sstevel@tonic-gate prom_claim_phys(size_t size, unsigned long long physaddr) 1077c478bd9Sstevel@tonic-gate { 1087c478bd9Sstevel@tonic-gate cell_t ci[10]; 1097c478bd9Sstevel@tonic-gate int rv; 1107c478bd9Sstevel@tonic-gate ihandle_t imemory = prom_memory_ihandle(); 1117c478bd9Sstevel@tonic-gate 1127c478bd9Sstevel@tonic-gate if ((imemory == (ihandle_t)-1)) 1137c478bd9Sstevel@tonic-gate return (-1); 1147c478bd9Sstevel@tonic-gate 1157c478bd9Sstevel@tonic-gate ci[0] = p1275_ptr2cell("call-method"); /* Service name */ 1167c478bd9Sstevel@tonic-gate ci[1] = (cell_t)6; /* #argument cells */ 1177c478bd9Sstevel@tonic-gate ci[2] = (cell_t)1; /* #result cells */ 1187c478bd9Sstevel@tonic-gate ci[3] = p1275_ptr2cell("claim"); /* Arg1: Method name */ 1197c478bd9Sstevel@tonic-gate ci[4] = p1275_ihandle2cell(imemory); /* Arg2: mmu ihandle */ 1207c478bd9Sstevel@tonic-gate ci[5] = 0; /* Arg3: SA1: align */ 1217c478bd9Sstevel@tonic-gate ci[6] = p1275_size2cell(size); /* Arg4: SA2: len */ 1227c478bd9Sstevel@tonic-gate ci[7] = p1275_ull2cell_high(physaddr); /* Arg5: SA3: phys.hi */ 1237c478bd9Sstevel@tonic-gate ci[8] = p1275_ull2cell_low(physaddr); /* Arg6: SA4: phys.lo */ 1247c478bd9Sstevel@tonic-gate 1257c478bd9Sstevel@tonic-gate promif_preprom(); 1267c478bd9Sstevel@tonic-gate rv = p1275_cif_handler(&ci); 1277c478bd9Sstevel@tonic-gate promif_postprom(); 1287c478bd9Sstevel@tonic-gate 1297c478bd9Sstevel@tonic-gate if (rv != 0) 1307c478bd9Sstevel@tonic-gate return (rv); 1317c478bd9Sstevel@tonic-gate if (p1275_cell2int(ci[9]) != 0) /* Res1: Catch result */ 1327c478bd9Sstevel@tonic-gate return (-1); 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate return (0); 1357c478bd9Sstevel@tonic-gate } 1367c478bd9Sstevel@tonic-gate 1377c478bd9Sstevel@tonic-gate /* 1387c478bd9Sstevel@tonic-gate * Free physical memory (no unmapping is done). 1397c478bd9Sstevel@tonic-gate * This routine is suitable for platforms with 2-cell physical addresses 1407c478bd9Sstevel@tonic-gate * with a single size cell. 1417c478bd9Sstevel@tonic-gate */ 1427c478bd9Sstevel@tonic-gate void 1437c478bd9Sstevel@tonic-gate prom_free_phys(size_t size, unsigned long long physaddr) 1447c478bd9Sstevel@tonic-gate { 1457c478bd9Sstevel@tonic-gate cell_t ci[8]; 1467c478bd9Sstevel@tonic-gate ihandle_t imemory = prom_memory_ihandle(); 1477c478bd9Sstevel@tonic-gate 1487c478bd9Sstevel@tonic-gate if ((imemory == (ihandle_t)-1)) 1497c478bd9Sstevel@tonic-gate return; 1507c478bd9Sstevel@tonic-gate 1517c478bd9Sstevel@tonic-gate ci[0] = p1275_ptr2cell("call-method"); /* Service name */ 1527c478bd9Sstevel@tonic-gate ci[1] = (cell_t)5; /* #argument cells */ 1537c478bd9Sstevel@tonic-gate ci[2] = (cell_t)0; /* #return cells */ 1547c478bd9Sstevel@tonic-gate ci[3] = p1275_ptr2cell("release"); /* Arg1: Method name */ 1557c478bd9Sstevel@tonic-gate ci[4] = p1275_ihandle2cell(imemory); /* Arg2: memory ihandle */ 1567c478bd9Sstevel@tonic-gate ci[5] = p1275_size2cell(size); /* Arg3: SA1: size */ 1577c478bd9Sstevel@tonic-gate ci[6] = p1275_ull2cell_high(physaddr); /* Arg4: SA2: phys.hi */ 1587c478bd9Sstevel@tonic-gate ci[7] = p1275_ull2cell_low(physaddr); /* Arg5: SA3: phys.lo */ 1597c478bd9Sstevel@tonic-gate 1607c478bd9Sstevel@tonic-gate promif_preprom(); 1617c478bd9Sstevel@tonic-gate (void) p1275_cif_handler(&ci); 1627c478bd9Sstevel@tonic-gate promif_postprom(); 1637c478bd9Sstevel@tonic-gate } 164*986fd29aSsetje 165*986fd29aSsetje static pnode_t 166*986fd29aSsetje prom_mem_phandle(void) 167*986fd29aSsetje { 168*986fd29aSsetje static pnode_t pmem = 0; 169*986fd29aSsetje 170*986fd29aSsetje if (pmem == (pnode_t)0) { 171*986fd29aSsetje ihandle_t ih; 172*986fd29aSsetje 173*986fd29aSsetje if ((ih = prom_memory_ihandle()) == (ihandle_t)-1) 174*986fd29aSsetje prom_panic("Can't get memory ihandle"); 175*986fd29aSsetje pmem = prom_getphandle(ih); 176*986fd29aSsetje } 177*986fd29aSsetje return (pmem); 178*986fd29aSsetje } 179*986fd29aSsetje 180*986fd29aSsetje 181*986fd29aSsetje int 182*986fd29aSsetje prom_phys_installed_len(void) 183*986fd29aSsetje { 184*986fd29aSsetje return (prom_getproplen(prom_mem_phandle(), "reg")); 185*986fd29aSsetje } 186*986fd29aSsetje 187*986fd29aSsetje int 188*986fd29aSsetje prom_phys_avail_len(void) 189*986fd29aSsetje { 190*986fd29aSsetje return (prom_getproplen(prom_mem_phandle(), "available")); 191*986fd29aSsetje } 192*986fd29aSsetje 193*986fd29aSsetje int 194*986fd29aSsetje prom_phys_installed(caddr_t prop) 195*986fd29aSsetje { 196*986fd29aSsetje return (prom_getprop(prom_mem_phandle(), "reg", prop)); 197*986fd29aSsetje } 198*986fd29aSsetje 199*986fd29aSsetje int 200*986fd29aSsetje prom_phys_avail(caddr_t prop) 201*986fd29aSsetje { 202*986fd29aSsetje return (prom_getprop(prom_mem_phandle(), "available", prop)); 203*986fd29aSsetje } 204