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 2009 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 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #ifdef _KERNEL 34 35 #include <sys/lgrp.h> 36 37 38 /* 39 * This file defines the mappings between physical addresses and memory 40 * nodes. Memory nodes are defined so that the low-order bits are the 41 * memory slice ID and the high-order bits are the SSM nodeid. 42 */ 43 44 #define MAX_MEM_NODES_PER_LGROUP 3 45 #ifndef MAX_MEM_NODES 46 #define MAX_MEM_NODES (8 * MAX_MEM_NODES_PER_LGROUP) 47 #endif /* MAX_MEM_NODES */ 48 49 #define PFN_2_MEM_NODE(pfn) \ 50 ((max_mem_nodes > 1) ? plat_pfn_to_mem_node(pfn) : 0) 51 52 #define MEM_NODE_2_LGRPHAND(mnode) \ 53 ((max_mem_nodes > 1) ? plat_mem_node_to_lgrphand(mnode) : \ 54 LGRP_DEFAULT_HANDLE) 55 56 /* 57 * Platmod hooks 58 */ 59 60 extern int plat_pfn_to_mem_node(pfn_t); 61 extern void plat_assign_lgrphand_to_mem_node(lgrp_handle_t, int); 62 extern lgrp_handle_t plat_mem_node_to_lgrphand(int); 63 extern void plat_slice_add(pfn_t, pfn_t); 64 extern void plat_slice_del(pfn_t, pfn_t); 65 66 #pragma weak plat_pfn_to_mem_node 67 #pragma weak plat_mem_node_to_lgrphand 68 #pragma weak plat_slice_add 69 #pragma weak plat_slice_del 70 71 struct mem_node_conf { 72 int exists; /* only try if set, list may still be empty */ 73 pfn_t physbase; /* lowest PFN in this memnode */ 74 pfn_t physmax; /* highest PFN in this memnode */ 75 }; 76 77 struct memlist; 78 79 extern void startup_build_mem_nodes(struct memlist *); 80 extern void mem_node_add_slice(pfn_t, pfn_t); 81 extern void mem_node_del_slice(pfn_t, pfn_t); 82 extern int mem_node_alloc(void); 83 extern pgcnt_t mem_node_memlist_pages(int, struct memlist *); 84 extern void mem_node_add_range(pfn_t, pfn_t); 85 extern void mem_node_del_range(pfn_t, pfn_t); 86 87 extern int plat_mnode_xcheck(pfn_t); 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