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 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_MEMNODE_H 28 #define _SYS_MEMNODE_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #ifdef _KERNEL 37 38 #include <sys/lgrp.h> 39 40 41 /* 42 * This file defines the mappings between physical addresses and memory 43 * nodes. Memory nodes are defined so that the low-order bits are the 44 * memory slice ID and the high-order bits are the SSM nodeid. 45 */ 46 47 #ifndef MAX_MEM_NODES 48 #define MAX_MEM_NODES (8) 49 #endif /* MAX_MEM_NODES */ 50 51 #define PFN_2_MEM_NODE(pfn) \ 52 ((max_mem_nodes > 1) ? plat_pfn_to_mem_node(pfn) : 0) 53 54 #define LGRPHAND_2_MEM_NODE(lgrp_plat_hand) \ 55 ((max_mem_nodes > 1) ? plat_lgrphand_to_mem_node(lgrp_plat_hand) : 0) 56 57 #define MEM_NODE_2_LGRPHAND(mnode) \ 58 ((max_mem_nodes > 1) ? plat_mem_node_to_lgrphand(mnode) : \ 59 LGRP_DEFAULT_HANDLE) 60 61 /* 62 * Platmod hooks 63 */ 64 65 extern int plat_pfn_to_mem_node(pfn_t); 66 extern int plat_lgrphand_to_mem_node(lgrp_handle_t); 67 extern void plat_assign_lgrphand_to_mem_node(lgrp_handle_t, int); 68 extern lgrp_handle_t plat_mem_node_to_lgrphand(int); 69 extern void plat_slice_add(pfn_t, pfn_t); 70 extern void plat_slice_del(pfn_t, pfn_t); 71 72 #pragma weak plat_pfn_to_mem_node 73 #pragma weak plat_lgrphand_to_mem_node 74 #pragma weak plat_mem_node_to_lgrphand 75 #pragma weak plat_slice_add 76 #pragma weak plat_slice_del 77 78 struct mem_node_conf { 79 int exists; /* only try if set, list may still be empty */ 80 pfn_t physbase; /* lowest PFN in this memnode */ 81 pfn_t physmax; /* highest PFN in this memnode */ 82 }; 83 84 struct memlist; 85 86 extern void startup_build_mem_nodes(struct memlist *); 87 extern void mem_node_add_slice(pfn_t, pfn_t); 88 extern void mem_node_pre_del_slice(pfn_t, pfn_t); 89 extern void mem_node_post_del_slice(pfn_t, pfn_t, int); 90 extern int mem_node_alloc(void); 91 extern pgcnt_t mem_node_memlist_pages(int, struct memlist *); 92 93 94 extern struct mem_node_conf mem_node_config[]; 95 extern uint64_t mem_node_physalign; 96 extern int mem_node_pfn_shift; 97 extern int max_mem_nodes; 98 99 extern uint_t lgrp_plat_node_cnt; 100 101 #endif /* _KERNEL */ 102 103 #ifdef __cplusplus 104 } 105 #endif 106 107 #endif /* _SYS_MEMNODE_H */ 108