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 54769Sdp78419 * Common Development and Distribution License (the "License"). 64769Sdp78419 * 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*10106SJason.Beloro@Sun.COM * Copyright 2009 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 #ifdef __cplusplus 300Sstevel@tonic-gate extern "C" { 310Sstevel@tonic-gate #endif 320Sstevel@tonic-gate 330Sstevel@tonic-gate #ifdef _KERNEL 340Sstevel@tonic-gate 350Sstevel@tonic-gate #include <sys/lgrp.h> 365648Ssetje #include <sys/memlist_plat.h> 370Sstevel@tonic-gate 380Sstevel@tonic-gate /* 390Sstevel@tonic-gate * This file defines the mappings between physical addresses and memory 400Sstevel@tonic-gate * nodes. Memory nodes are defined so that the low-order bits are the 410Sstevel@tonic-gate * memory slice ID and the high-order bits are the SSM nodeid. 420Sstevel@tonic-gate */ 430Sstevel@tonic-gate 440Sstevel@tonic-gate /* 450Sstevel@tonic-gate * The MAX_MEM_NODES constant is the maximum number of memory nodes for the 460Sstevel@tonic-gate * unix binary and is used to help size static data structures. The 470Sstevel@tonic-gate * max_mem_nodes variable is the maximum number of memory nodes for the 480Sstevel@tonic-gate * running platform and may be smaller than MAX_MEM_NODES since the platform 490Sstevel@tonic-gate * may not need to use all of them. 500Sstevel@tonic-gate * 510Sstevel@tonic-gate * The default value of MAX_MEM_NODES is 4 to create enough memory nodes for 520Sstevel@tonic-gate * Chalupa and max_mem_nodes is set to 1 by default since the generic sun4u 530Sstevel@tonic-gate * unix binary mostly includes platforms only needing one memory node. 540Sstevel@tonic-gate * For platforms requiring more than one memory node, max_mem_nodes is set to 550Sstevel@tonic-gate * a bigger value in the lgroup platform initialization routines which are 560Sstevel@tonic-gate * called before the memory nodes are initialized. Some platforms like 570Sstevel@tonic-gate * Serengeti and Starcat simply define MAX_MEM_NODES to be their respective 580Sstevel@tonic-gate * maximum memory nodes at compile time, since they have their own unix binary 590Sstevel@tonic-gate * and don't share one with any other platform like Enchilada and Chalupa do. 600Sstevel@tonic-gate * 610Sstevel@tonic-gate * For machines that don't support DR, they can set max_mem_nodes to the actual 620Sstevel@tonic-gate * number of memory nodes in the running system instead of the maximum. The 630Sstevel@tonic-gate * platform controls the mapping of lgroup platform handles and PFNs to memory 640Sstevel@tonic-gate * nodes, so the platform can always make everything work. 650Sstevel@tonic-gate */ 660Sstevel@tonic-gate 674769Sdp78419 #ifndef MAX_MEM_NODES 680Sstevel@tonic-gate #define MAX_MEM_NODES (4) 690Sstevel@tonic-gate #endif /* MAX_MEM_NODES */ 700Sstevel@tonic-gate 710Sstevel@tonic-gate #define PFN_2_MEM_NODE(pfn) \ 720Sstevel@tonic-gate ((max_mem_nodes > 1) ? plat_pfn_to_mem_node(pfn) : 0) 730Sstevel@tonic-gate 740Sstevel@tonic-gate #define MEM_NODE_2_LGRPHAND(mnode) \ 750Sstevel@tonic-gate ((max_mem_nodes > 1) ? plat_mem_node_to_lgrphand(mnode) : \ 760Sstevel@tonic-gate LGRP_DEFAULT_HANDLE) 770Sstevel@tonic-gate 780Sstevel@tonic-gate /* 790Sstevel@tonic-gate * Platmod hooks 800Sstevel@tonic-gate */ 810Sstevel@tonic-gate 820Sstevel@tonic-gate extern int plat_pfn_to_mem_node(pfn_t); 830Sstevel@tonic-gate extern int plat_lgrphand_to_mem_node(lgrp_handle_t); 840Sstevel@tonic-gate extern void plat_assign_lgrphand_to_mem_node(lgrp_handle_t, int); 850Sstevel@tonic-gate extern lgrp_handle_t plat_mem_node_to_lgrphand(int); 860Sstevel@tonic-gate extern void plat_slice_add(pfn_t, pfn_t); 870Sstevel@tonic-gate extern void plat_slice_del(pfn_t, pfn_t); 884769Sdp78419 extern void plat_mem_node_intersect_range(pfn_t, pgcnt_t, int, pgcnt_t *); 890Sstevel@tonic-gate 900Sstevel@tonic-gate #pragma weak plat_pfn_to_mem_node 910Sstevel@tonic-gate #pragma weak plat_lgrphand_to_mem_node 920Sstevel@tonic-gate #pragma weak plat_mem_node_to_lgrphand 930Sstevel@tonic-gate #pragma weak plat_slice_add 940Sstevel@tonic-gate #pragma weak plat_slice_del 954769Sdp78419 #pragma weak plat_mem_node_intersect_range 960Sstevel@tonic-gate 970Sstevel@tonic-gate struct mem_node_conf { 980Sstevel@tonic-gate int exists; /* only try if set, list may still be empty */ 990Sstevel@tonic-gate pfn_t physbase; /* lowest PFN in this memnode */ 1000Sstevel@tonic-gate pfn_t physmax; /* highest PFN in this memnode */ 1010Sstevel@tonic-gate }; 1020Sstevel@tonic-gate 1030Sstevel@tonic-gate struct memlist; 1040Sstevel@tonic-gate 105*10106SJason.Beloro@Sun.COM /* 106*10106SJason.Beloro@Sun.COM * Common layer calls the mem_node_*_range interfaces 107*10106SJason.Beloro@Sun.COM * which in turn call the platmod hooks if they exist. 108*10106SJason.Beloro@Sun.COM * The platmod layer then calls the mem_node_*slice interfaces. 109*10106SJason.Beloro@Sun.COM */ 1105648Ssetje extern void startup_build_mem_nodes(prom_memlist_t *, size_t); 1110Sstevel@tonic-gate extern void mem_node_add_slice(pfn_t, pfn_t); 112*10106SJason.Beloro@Sun.COM extern void mem_node_del_slice(pfn_t, pfn_t); 1130Sstevel@tonic-gate extern int mem_node_alloc(void); 1140Sstevel@tonic-gate extern pgcnt_t mem_node_memlist_pages(int, struct memlist *); 1154769Sdp78419 extern void mem_node_max_range(pfn_t *, pfn_t *); 116*10106SJason.Beloro@Sun.COM extern void mem_node_add_range(pfn_t, pfn_t); 117*10106SJason.Beloro@Sun.COM extern void mem_node_del_range(pfn_t, pfn_t); 1180Sstevel@tonic-gate 1190Sstevel@tonic-gate extern struct mem_node_conf mem_node_config[]; 1200Sstevel@tonic-gate extern uint64_t mem_node_physalign; 1210Sstevel@tonic-gate extern int mem_node_pfn_shift; 1220Sstevel@tonic-gate extern int max_mem_nodes; 1230Sstevel@tonic-gate 1240Sstevel@tonic-gate #endif /* _KERNEL */ 1250Sstevel@tonic-gate 1260Sstevel@tonic-gate #ifdef __cplusplus 1270Sstevel@tonic-gate } 1280Sstevel@tonic-gate #endif 1290Sstevel@tonic-gate 1300Sstevel@tonic-gate #endif /* _SYS_MEMNODE_H */ 131