1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_MEMNODE_H 28*0Sstevel@tonic-gate #define _SYS_MEMNODE_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #ifdef _KERNEL 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #include <sys/lgrp.h> 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * This file defines the mappings between physical addresses and memory 42*0Sstevel@tonic-gate * nodes. Memory nodes are defined so that the low-order bits are the 43*0Sstevel@tonic-gate * memory slice ID and the high-order bits are the SSM nodeid. 44*0Sstevel@tonic-gate */ 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate /* 47*0Sstevel@tonic-gate * The MAX_MEM_NODES constant is the maximum number of memory nodes for the 48*0Sstevel@tonic-gate * unix binary and is used to help size static data structures. The 49*0Sstevel@tonic-gate * max_mem_nodes variable is the maximum number of memory nodes for the 50*0Sstevel@tonic-gate * running platform and may be smaller than MAX_MEM_NODES since the platform 51*0Sstevel@tonic-gate * may not need to use all of them. 52*0Sstevel@tonic-gate * 53*0Sstevel@tonic-gate * The default value of MAX_MEM_NODES is 4 to create enough memory nodes for 54*0Sstevel@tonic-gate * Chalupa and max_mem_nodes is set to 1 by default since the generic sun4u 55*0Sstevel@tonic-gate * unix binary mostly includes platforms only needing one memory node. 56*0Sstevel@tonic-gate * For platforms requiring more than one memory node, max_mem_nodes is set to 57*0Sstevel@tonic-gate * a bigger value in the lgroup platform initialization routines which are 58*0Sstevel@tonic-gate * called before the memory nodes are initialized. Some platforms like 59*0Sstevel@tonic-gate * Serengeti and Starcat simply define MAX_MEM_NODES to be their respective 60*0Sstevel@tonic-gate * maximum memory nodes at compile time, since they have their own unix binary 61*0Sstevel@tonic-gate * and don't share one with any other platform like Enchilada and Chalupa do. 62*0Sstevel@tonic-gate * 63*0Sstevel@tonic-gate * For machines that don't support DR, they can set max_mem_nodes to the actual 64*0Sstevel@tonic-gate * number of memory nodes in the running system instead of the maximum. The 65*0Sstevel@tonic-gate * platform controls the mapping of lgroup platform handles and PFNs to memory 66*0Sstevel@tonic-gate * nodes, so the platform can always make everything work. 67*0Sstevel@tonic-gate */ 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate #ifndef MAX_MEM_NODES 70*0Sstevel@tonic-gate #define MAX_MEM_NODES (4) 71*0Sstevel@tonic-gate #endif /* MAX_MEM_NODES */ 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate #define PFN_2_MEM_NODE(pfn) \ 74*0Sstevel@tonic-gate ((max_mem_nodes > 1) ? plat_pfn_to_mem_node(pfn) : 0) 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate #define LGRPHAND_2_MEM_NODE(lgrp_plat_hand) \ 77*0Sstevel@tonic-gate ((max_mem_nodes > 1) ? plat_lgrphand_to_mem_node(lgrp_plat_hand) : 0) 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate #define MEM_NODE_2_LGRPHAND(mnode) \ 80*0Sstevel@tonic-gate ((max_mem_nodes > 1) ? plat_mem_node_to_lgrphand(mnode) : \ 81*0Sstevel@tonic-gate LGRP_DEFAULT_HANDLE) 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate /* 84*0Sstevel@tonic-gate * Platmod hooks 85*0Sstevel@tonic-gate */ 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate extern int plat_pfn_to_mem_node(pfn_t); 88*0Sstevel@tonic-gate extern int plat_lgrphand_to_mem_node(lgrp_handle_t); 89*0Sstevel@tonic-gate extern void plat_assign_lgrphand_to_mem_node(lgrp_handle_t, int); 90*0Sstevel@tonic-gate extern lgrp_handle_t plat_mem_node_to_lgrphand(int); 91*0Sstevel@tonic-gate extern void plat_slice_add(pfn_t, pfn_t); 92*0Sstevel@tonic-gate extern void plat_slice_del(pfn_t, pfn_t); 93*0Sstevel@tonic-gate 94*0Sstevel@tonic-gate #pragma weak plat_pfn_to_mem_node 95*0Sstevel@tonic-gate #pragma weak plat_lgrphand_to_mem_node 96*0Sstevel@tonic-gate #pragma weak plat_mem_node_to_lgrphand 97*0Sstevel@tonic-gate #pragma weak plat_slice_add 98*0Sstevel@tonic-gate #pragma weak plat_slice_del 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate struct mem_node_conf { 101*0Sstevel@tonic-gate int exists; /* only try if set, list may still be empty */ 102*0Sstevel@tonic-gate pfn_t physbase; /* lowest PFN in this memnode */ 103*0Sstevel@tonic-gate pfn_t physmax; /* highest PFN in this memnode */ 104*0Sstevel@tonic-gate size_t cursize; /* current number of PAGESIZE pages on lists */ 105*0Sstevel@tonic-gate }; 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate struct memlist; 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate extern void startup_build_mem_nodes(u_longlong_t *, size_t); 110*0Sstevel@tonic-gate extern void mem_node_add_slice(pfn_t, pfn_t); 111*0Sstevel@tonic-gate extern void mem_node_pre_del_slice(pfn_t, pfn_t); 112*0Sstevel@tonic-gate extern void mem_node_post_del_slice(pfn_t, pfn_t, int); 113*0Sstevel@tonic-gate extern int mem_node_alloc(void); 114*0Sstevel@tonic-gate extern pgcnt_t mem_node_memlist_pages(int, struct memlist *); 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate 117*0Sstevel@tonic-gate extern struct mem_node_conf mem_node_config[]; 118*0Sstevel@tonic-gate extern uint64_t mem_node_physalign; 119*0Sstevel@tonic-gate extern int mem_node_pfn_shift; 120*0Sstevel@tonic-gate extern int max_mem_nodes; 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate #endif /* _KERNEL */ 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate #ifdef __cplusplus 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate #endif 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate #endif /* _SYS_MEMNODE_H */ 129