xref: /illumos-gate/usr/src/uts/sun4v/sys/mpo.h (revision 7801e5e8b5bc4af34929c54a02cfb78398da08dd)
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  /*
23   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24   * Use is subject to license terms.
25   */
26  
27  #ifndef _SYS_MPO_H
28  #define	_SYS_MPO_H
29  
30  #ifdef __cplusplus
31  extern "C" {
32  #endif
33  
34  #include <sys/lgrp.h>
35  
36  /*
37   * mpo.h -  Sun4v MPO common header file
38   *
39   */
40  
41  #define	PROP_LG_CPU_ID	"id"
42  #define	PROP_LG_MASK	"address-mask"
43  #define	PROP_LG_LATENCY "latency"
44  #define	PROP_LG_MATCH	"address-match"
45  #define	PROP_LG_MEM_LG	"memory-latency-group"
46  #define	PROP_LG_CPU	"cpu"
47  #define	PROP_LG_MBLOCK	"mblock"
48  #define	PROP_LG_BASE	"base"
49  #define	PROP_LG_SIZE	"size"
50  #define	PROP_LG_RA_PA_OFFSET	"address-congruence-offset"
51  
52  /* Macro to set the correspending bit if an mem-lg homeid is a member */
53  #define	HOMESET_ADD(homeset, home)\
54  	homeset |= ((int)1 << (home))
55  
56  /* Macro to check if an mem_lg homeid is a member of the homeset */
57  #define	MEM_LG_ISMEMBER(homeset, home)\
58  	((homeset) & ((uint64_t)1 << (home)))
59  
60  /* Structure to store CPU information from the MD */
61  
62  struct cpu_md {
63  	uint_t 	home;
64  	int	lgrp_index;
65  };
66  
67  /* Structure to store mem-lg information from the MD */
68  
69  struct lgrp_md {
70  	uint64_t	id;
71  	uint64_t	addr_mask;
72  	uint64_t	addr_match;
73  	uint64_t	latency;
74  	mde_cookie_t	node;
75  	int		ncpu;
76  };
77  
78  /* Structure to store mblock information retrieved from the MD */
79  
80  typedef struct mblock_md {
81  	uint64_t	base;
82  	uint64_t	size;
83  	uint64_t	ra_to_pa;
84  	pfn_t		base_pfn;
85  	pfn_t		end_pfn;
86  } mblock_md_t;
87  
88  /* Structure for memnode information for use by plat_pfn_to_mem_node */
89  
90  struct mnode_info {
91  	pfn_t		base_pfn;
92  	pfn_t		end_pfn;
93  };
94  
95  /* A stripe defines the portion of a mem_node that falls in one mblock */
96  typedef struct {
97  	pfn_t physbase;	/* first page in mnode in the corresponding mblock */
98  	pfn_t physmax;	/* last valid page in mnode in mblock */
99  	pfn_t offset;   /* stripe starts at physbase - offset */
100  	int exists;	/* set to 1 if mblock has memory in this mnode stripe */
101  } mem_stripe_t;
102  
103  /* Configuration including allocation state of mblocks and stripes */
104  
105  typedef struct {
106  	mblock_md_t	*mc_mblocks;	/* mblock array */
107  	int 		mc_nmblocks;	/* number in array */
108  	mem_stripe_t 	*mc_stripes;	/* stripe array */
109  	int 		mc_nstripes;	/* number in array */
110  	int 		mc_alloc_sz;	/* size in bytes of mc_mblocks if */
111  					/* it was kmem_alloc'd, else 0 */
112  } mpo_config_t;
113  
114  /* These are used when MPO requires preallocated kvseg32 space */
115  extern	caddr_t	mpo_heap32_buf;
116  extern	size_t	mpo_heap32_bufsz;
117  extern void mpo_cpu_add(int cpuid);
118  extern void mpo_cpu_remove(int cpuid);
119  
120  #ifdef	__cplusplus
121  }
122  #endif
123  
124  #endif /* _SYS_MPO_H */
125