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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_MEMNODE_H
#define _SYS_MEMNODE_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _KERNEL
#include <sys/lgrp.h>
/*
* This file defines the mappings between physical addresses and memory
* nodes. Memory nodes are defined so that the low-order bits are the
* memory slice ID and the high-order bits are the SSM nodeid.
*/
#define MAX_MEM_NODES_PER_LGROUP 3
#ifndef MAX_MEM_NODES
#define MAX_MEM_NODES (8 * MAX_MEM_NODES_PER_LGROUP)
#endif /* MAX_MEM_NODES */
#define PFN_2_MEM_NODE(pfn) \
((max_mem_nodes > 1) ? plat_pfn_to_mem_node(pfn) : 0)
#define MEM_NODE_2_LGRPHAND(mnode) \
((max_mem_nodes > 1) ? plat_mem_node_to_lgrphand(mnode) : \
LGRP_DEFAULT_HANDLE)
/*
* Platmod hooks
*/
extern int plat_pfn_to_mem_node(pfn_t);
extern void plat_assign_lgrphand_to_mem_node(lgrp_handle_t, int);
extern lgrp_handle_t plat_mem_node_to_lgrphand(int);
extern void plat_slice_add(pfn_t, pfn_t);
extern void plat_slice_del(pfn_t, pfn_t);
#pragma weak plat_pfn_to_mem_node
#pragma weak plat_mem_node_to_lgrphand
#pragma weak plat_slice_add
#pragma weak plat_slice_del
struct mem_node_conf {
int exists; /* only try if set, list may still be empty */
pfn_t physbase; /* lowest PFN in this memnode */
pfn_t physmax; /* highest PFN in this memnode */
};
struct memlist;
extern void startup_build_mem_nodes(struct memlist *);
extern void mem_node_add_slice(pfn_t, pfn_t);
extern void mem_node_del_slice(pfn_t, pfn_t);
extern int mem_node_alloc(void);
extern pgcnt_t mem_node_memlist_pages(int, struct memlist *);
extern void mem_node_add_range(pfn_t, pfn_t);
extern void mem_node_del_range(pfn_t, pfn_t);
extern int plat_mnode_xcheck(pfn_t);
extern struct mem_node_conf mem_node_config[];
extern uint64_t mem_node_physalign;
extern int mem_node_pfn_shift;
extern int max_mem_nodes;
extern uint_t lgrp_plat_node_cnt;
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_MEMNODE_H */
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