xref: /illumos-gate/usr/src/uts/common/sys/mem.h (revision e4b86885)
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  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_MEM_H
27 #define	_SYS_MEM_H
28 
29 #ifdef	__cplusplus
30 extern "C" {
31 #endif
32 
33 #include <sys/types.h>
34 #include <sys/uio.h>
35 
36 /*
37  * Memory Device Minor Numbers
38  */
39 #define	M_MEM		0	/* /dev/mem - physical main memory */
40 #define	M_KMEM		1	/* /dev/kmem - virtual kernel memory */
41 #define	M_NULL		2	/* /dev/null - EOF & Rathole */
42 #define	M_ALLKMEM	3	/* /dev/allkmem - virtual kernel memory & I/O */
43 #define	M_ZERO		12	/* /dev/zero - source of private memory */
44 
45 /*
46  * Private ioctl for libkvm: translate virtual address to physical address.
47  */
48 #define	MEM_VTOP		(('M' << 8) | 0x01)
49 
50 typedef struct mem_vtop {
51 	struct as	*m_as;
52 	void		*m_va;
53 	pfn_t		m_pfn;
54 } mem_vtop_t;
55 
56 #if defined(_SYSCALL32)
57 typedef struct mem_vtop32 {
58 	uint32_t	m_as;
59 	uint32_t	m_va;
60 	uint32_t	m_pfn;
61 } mem_vtop32_t;
62 #endif
63 
64 /*
65  * Private ioctls for fmd(1M).  These interfaces are Sun Private.  Applications
66  * and drivers should not make use of these interfaces: they can change without
67  * notice and programs that consume them will fail to run on future releases.
68  */
69 #define	MEM_NAME		(('M' << 8) | 0x04)
70 #define	MEM_INFO		(('M' << 8) | 0x05)
71 
72 #define	MEM_PAGE_RETIRE		(('M' << 8) | 0x02)
73 #define	MEM_PAGE_ISRETIRED	(('M' << 8) | 0x03)
74 #define	MEM_PAGE_UNRETIRE	(('M' << 8) | 0x06)
75 #define	MEM_PAGE_GETERRORS	(('M' << 8) | 0x07)
76 #define	MEM_PAGE_RETIRE_MCE	(('M' << 8) | 0x08)
77 #define	MEM_PAGE_RETIRE_UE	(('M' << 8) | 0x09)
78 #define	MEM_PAGE_RETIRE_TEST	(('M' << 8) | 0x0A)
79 
80 #define	MEM_SID			(('M' << 8) | 0x0B)
81 
82 /*
83  * Bits returned from MEM_PAGE_GETERRORS ioctl for use by fmd(1M).
84  */
85 #define	MEM_PAGE_ERR_NONE	0x0
86 #define	MEM_PAGE_ERR_MULTI_CE	0x1
87 #define	MEM_PAGE_ERR_UE		0x2
88 #define	MEM_PAGE_ERR_FMA_REQ	0x8
89 
90 #define	MEM_FMRI_MAX_BUFSIZE	8192	/* maximum allowed packed FMRI size */
91 
92 typedef struct mem_name {
93 	uint64_t	m_addr;		/* memory address */
94 	uint64_t	m_synd;		/* architecture-specific syndrome */
95 	uint64_t	m_type[2];	/* architecture-specific type */
96 	caddr_t		m_name;		/* memory name buffer */
97 	size_t		m_namelen;	/* memory name buffer length */
98 	caddr_t		m_sid;		/* memory serial id buffer */
99 	size_t		m_sidlen;	/* memory serial id buffer length */
100 } mem_name_t;
101 
102 #if	defined(_SYSCALL32)
103 typedef struct mem_name32 {
104 	uint64_t	m_addr;
105 	uint64_t	m_synd;
106 	uint64_t	m_type[2];
107 	caddr32_t	m_name;
108 	size32_t	m_namelen;
109 	caddr32_t	m_sid;
110 	size32_t	m_sidlen;
111 } mem_name32_t;
112 #endif	/* _SYSCALL32 */
113 
114 typedef struct mem_info {
115 	uint64_t	m_addr;		/* memory address */
116 	uint64_t	m_synd;		/* architecture-specific syndrome */
117 	uint64_t	m_mem_size;	/* total memory size */
118 	uint64_t	m_seg_size;	/* segment size */
119 	uint64_t	m_bank_size;	/* bank size */
120 	int		m_segments;	/* # of segments */
121 	int		m_banks;	/* # of banks in segment */
122 	int		m_mcid;		/* associated memory controller id */
123 } mem_info_t;
124 
125 #ifdef	_KERNEL
126 
127 extern pfn_t impl_obmem_pfnum(pfn_t);
128 
129 extern int plat_mem_do_mmio(struct uio *, enum uio_rw);
130 
131 #endif	/* _KERNEL */
132 
133 #ifdef	__cplusplus
134 }
135 #endif
136 
137 #endif	/* _SYS_MEM_H */
138