10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*4769Sdp78419 * Common Development and Distribution License (the "License"). 6*4769Sdp78419 * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 210Sstevel@tonic-gate /* 22*4769Sdp78419 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 230Sstevel@tonic-gate * Use is subject to license terms. 240Sstevel@tonic-gate */ 250Sstevel@tonic-gate 260Sstevel@tonic-gate #ifndef _SYS_MEMNODE_H 270Sstevel@tonic-gate #define _SYS_MEMNODE_H 280Sstevel@tonic-gate 290Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 300Sstevel@tonic-gate 310Sstevel@tonic-gate #ifdef __cplusplus 320Sstevel@tonic-gate extern "C" { 330Sstevel@tonic-gate #endif 340Sstevel@tonic-gate 350Sstevel@tonic-gate #ifdef _KERNEL 360Sstevel@tonic-gate 370Sstevel@tonic-gate #include <sys/lgrp.h> 380Sstevel@tonic-gate 390Sstevel@tonic-gate /* 400Sstevel@tonic-gate * This file defines the mappings between physical addresses and memory 410Sstevel@tonic-gate * nodes. Memory nodes are defined so that the low-order bits are the 420Sstevel@tonic-gate * memory slice ID and the high-order bits are the SSM nodeid. 430Sstevel@tonic-gate */ 440Sstevel@tonic-gate 450Sstevel@tonic-gate /* 460Sstevel@tonic-gate * The MAX_MEM_NODES constant is the maximum number of memory nodes for the 470Sstevel@tonic-gate * unix binary and is used to help size static data structures. The 480Sstevel@tonic-gate * max_mem_nodes variable is the maximum number of memory nodes for the 490Sstevel@tonic-gate * running platform and may be smaller than MAX_MEM_NODES since the platform 500Sstevel@tonic-gate * may not need to use all of them. 510Sstevel@tonic-gate * 520Sstevel@tonic-gate * The default value of MAX_MEM_NODES is 4 to create enough memory nodes for 530Sstevel@tonic-gate * Chalupa and max_mem_nodes is set to 1 by default since the generic sun4u 540Sstevel@tonic-gate * unix binary mostly includes platforms only needing one memory node. 550Sstevel@tonic-gate * For platforms requiring more than one memory node, max_mem_nodes is set to 560Sstevel@tonic-gate * a bigger value in the lgroup platform initialization routines which are 570Sstevel@tonic-gate * called before the memory nodes are initialized. Some platforms like 580Sstevel@tonic-gate * Serengeti and Starcat simply define MAX_MEM_NODES to be their respective 590Sstevel@tonic-gate * maximum memory nodes at compile time, since they have their own unix binary 600Sstevel@tonic-gate * and don't share one with any other platform like Enchilada and Chalupa do. 610Sstevel@tonic-gate * 620Sstevel@tonic-gate * For machines that don't support DR, they can set max_mem_nodes to the actual 630Sstevel@tonic-gate * number of memory nodes in the running system instead of the maximum. The 640Sstevel@tonic-gate * platform controls the mapping of lgroup platform handles and PFNs to memory 650Sstevel@tonic-gate * nodes, so the platform can always make everything work. 660Sstevel@tonic-gate */ 670Sstevel@tonic-gate 68*4769Sdp78419 #ifndef MAX_MEM_NODES 690Sstevel@tonic-gate #define MAX_MEM_NODES (4) 700Sstevel@tonic-gate #endif /* MAX_MEM_NODES */ 710Sstevel@tonic-gate 720Sstevel@tonic-gate #define PFN_2_MEM_NODE(pfn) \ 730Sstevel@tonic-gate ((max_mem_nodes > 1) ? plat_pfn_to_mem_node(pfn) : 0) 740Sstevel@tonic-gate 750Sstevel@tonic-gate #define MEM_NODE_2_LGRPHAND(mnode) \ 760Sstevel@tonic-gate ((max_mem_nodes > 1) ? plat_mem_node_to_lgrphand(mnode) : \ 770Sstevel@tonic-gate LGRP_DEFAULT_HANDLE) 780Sstevel@tonic-gate 790Sstevel@tonic-gate /* 800Sstevel@tonic-gate * Platmod hooks 810Sstevel@tonic-gate */ 820Sstevel@tonic-gate 830Sstevel@tonic-gate extern int plat_pfn_to_mem_node(pfn_t); 840Sstevel@tonic-gate extern int plat_lgrphand_to_mem_node(lgrp_handle_t); 850Sstevel@tonic-gate extern void plat_assign_lgrphand_to_mem_node(lgrp_handle_t, int); 860Sstevel@tonic-gate extern lgrp_handle_t plat_mem_node_to_lgrphand(int); 870Sstevel@tonic-gate extern void plat_slice_add(pfn_t, pfn_t); 880Sstevel@tonic-gate extern void plat_slice_del(pfn_t, pfn_t); 89*4769Sdp78419 extern void plat_mem_node_intersect_range(pfn_t, pgcnt_t, int, pgcnt_t *); 900Sstevel@tonic-gate 910Sstevel@tonic-gate #pragma weak plat_pfn_to_mem_node 920Sstevel@tonic-gate #pragma weak plat_lgrphand_to_mem_node 930Sstevel@tonic-gate #pragma weak plat_mem_node_to_lgrphand 940Sstevel@tonic-gate #pragma weak plat_slice_add 950Sstevel@tonic-gate #pragma weak plat_slice_del 96*4769Sdp78419 #pragma weak plat_mem_node_intersect_range 970Sstevel@tonic-gate 980Sstevel@tonic-gate struct mem_node_conf { 990Sstevel@tonic-gate int exists; /* only try if set, list may still be empty */ 1000Sstevel@tonic-gate pfn_t physbase; /* lowest PFN in this memnode */ 1010Sstevel@tonic-gate pfn_t physmax; /* highest PFN in this memnode */ 1020Sstevel@tonic-gate }; 1030Sstevel@tonic-gate 1040Sstevel@tonic-gate struct memlist; 1050Sstevel@tonic-gate 1060Sstevel@tonic-gate extern void startup_build_mem_nodes(u_longlong_t *, size_t); 1070Sstevel@tonic-gate extern void mem_node_add_slice(pfn_t, pfn_t); 1080Sstevel@tonic-gate extern void mem_node_pre_del_slice(pfn_t, pfn_t); 1090Sstevel@tonic-gate extern void mem_node_post_del_slice(pfn_t, pfn_t, int); 1100Sstevel@tonic-gate extern int mem_node_alloc(void); 1110Sstevel@tonic-gate extern pgcnt_t mem_node_memlist_pages(int, struct memlist *); 112*4769Sdp78419 extern void mem_node_add_slice(pfn_t start, pfn_t end); 113*4769Sdp78419 extern void mem_node_max_range(pfn_t *, pfn_t *); 1140Sstevel@tonic-gate 1150Sstevel@tonic-gate extern struct mem_node_conf mem_node_config[]; 1160Sstevel@tonic-gate extern uint64_t mem_node_physalign; 1170Sstevel@tonic-gate extern int mem_node_pfn_shift; 1180Sstevel@tonic-gate extern int max_mem_nodes; 1190Sstevel@tonic-gate 1200Sstevel@tonic-gate #endif /* _KERNEL */ 1210Sstevel@tonic-gate 1220Sstevel@tonic-gate #ifdef __cplusplus 1230Sstevel@tonic-gate } 1240Sstevel@tonic-gate #endif 1250Sstevel@tonic-gate 1260Sstevel@tonic-gate #endif /* _SYS_MEMNODE_H */ 127