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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_MEMNODE_H 27 #define _SYS_MEMNODE_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #ifdef _KERNEL 36 37 #include <sys/lgrp.h> 38 39 40 /* 41 * This file defines the mappings between physical addresses and memory 42 * nodes. Memory nodes are defined so that the low-order bits are the 43 * memory slice ID and the high-order bits are the SSM nodeid. 44 */ 45 46 #ifndef MAX_MEM_NODES 47 #define MAX_MEM_NODES (8) 48 #endif /* MAX_MEM_NODES */ 49 50 #define PFN_2_MEM_NODE(pfn) \ 51 ((max_mem_nodes > 1) ? plat_pfn_to_mem_node(pfn) : 0) 52 53 #define MEM_NODE_2_LGRPHAND(mnode) \ 54 ((max_mem_nodes > 1) ? plat_mem_node_to_lgrphand(mnode) : \ 55 LGRP_DEFAULT_HANDLE) 56 57 /* 58 * Platmod hooks 59 */ 60 61 extern int plat_pfn_to_mem_node(pfn_t); 62 extern int plat_lgrphand_to_mem_node(lgrp_handle_t); 63 extern void plat_assign_lgrphand_to_mem_node(lgrp_handle_t, int); 64 extern lgrp_handle_t plat_mem_node_to_lgrphand(int); 65 extern void plat_slice_add(pfn_t, pfn_t); 66 extern void plat_slice_del(pfn_t, pfn_t); 67 68 #pragma weak plat_pfn_to_mem_node 69 #pragma weak plat_lgrphand_to_mem_node 70 #pragma weak plat_mem_node_to_lgrphand 71 #pragma weak plat_slice_add 72 #pragma weak plat_slice_del 73 74 struct mem_node_conf { 75 int exists; /* only try if set, list may still be empty */ 76 pfn_t physbase; /* lowest PFN in this memnode */ 77 pfn_t physmax; /* highest PFN in this memnode */ 78 }; 79 80 struct memlist; 81 82 extern void startup_build_mem_nodes(struct memlist *); 83 extern void mem_node_add_slice(pfn_t, pfn_t); 84 extern void mem_node_pre_del_slice(pfn_t, pfn_t); 85 extern void mem_node_post_del_slice(pfn_t, pfn_t, int); 86 extern int mem_node_alloc(void); 87 extern pgcnt_t mem_node_memlist_pages(int, struct memlist *); 88 89 extern struct mem_node_conf mem_node_config[]; 90 extern uint64_t mem_node_physalign; 91 extern int mem_node_pfn_shift; 92 extern int max_mem_nodes; 93 94 extern uint_t lgrp_plat_node_cnt; 95 96 #endif /* _KERNEL */ 97 98 #ifdef __cplusplus 99 } 100 #endif 101 102 #endif /* _SYS_MEMNODE_H */ 103