xref: /illumos-gate/usr/src/uts/common/sys/mem.h (revision 43da549e0419e2943d8bd143ebfb1db11a16c569)
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 /*
27  * Copyright (c) 2015, Joyent, Inc.  All rights reserved.
28  */
29 
30 #ifndef _SYS_MEM_H
31 #define	_SYS_MEM_H
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 #include <sys/types.h>
38 #include <sys/uio.h>
39 
40 /*
41  * Memory Device Minor Numbers
42  */
43 #define	M_MEM		0	/* /dev/mem - physical main memory */
44 #define	M_KMEM		1	/* /dev/kmem - virtual kernel memory */
45 #define	M_NULL		2	/* /dev/null - EOF & Rathole */
46 #define	M_ALLKMEM	3	/* /dev/allkmem - virtual kernel memory & I/O */
47 #define	M_ZERO		12	/* /dev/zero - source of private memory */
48 
49 /*
50  * Private ioctl for libkvm: translate virtual address to physical address.
51  */
52 #define	MEM_VTOP		(('M' << 8) | 0x01)
53 
54 typedef struct mem_vtop {
55 	struct as	*m_as;
56 	void		*m_va;
57 	pfn_t		m_pfn;
58 } mem_vtop_t;
59 
60 #if defined(_SYSCALL32)
61 typedef struct mem_vtop32 {
62 	uint32_t	m_as;
63 	uint32_t	m_va;
64 	uint32_t	m_pfn;
65 } mem_vtop32_t;
66 #endif
67 
68 /*
69  * Private ioctls for fmd(1M).  These interfaces are Sun Private.  Applications
70  * and drivers should not make use of these interfaces: they can change without
71  * notice and programs that consume them will fail to run on future releases.
72  */
73 #define	MEM_NAME		(('M' << 8) | 0x04)
74 #define	MEM_INFO		(('M' << 8) | 0x05)
75 
76 #define	MEM_PAGE_RETIRE		(('M' << 8) | 0x02)
77 #define	MEM_PAGE_ISRETIRED	(('M' << 8) | 0x03)
78 #define	MEM_PAGE_UNRETIRE	(('M' << 8) | 0x06)
79 #define	MEM_PAGE_GETERRORS	(('M' << 8) | 0x07)
80 #define	MEM_PAGE_RETIRE_MCE	(('M' << 8) | 0x08)
81 #define	MEM_PAGE_RETIRE_UE	(('M' << 8) | 0x09)
82 #define	MEM_PAGE_RETIRE_TEST	(('M' << 8) | 0x0A)
83 
84 #define	MEM_SID			(('M' << 8) | 0x0B)
85 
86 /*
87  * Bits returned from MEM_PAGE_GETERRORS ioctl for use by fmd(1M).
88  */
89 #define	MEM_PAGE_ERR_NONE	0x0
90 #define	MEM_PAGE_ERR_MULTI_CE	0x1
91 #define	MEM_PAGE_ERR_UE		0x2
92 #define	MEM_PAGE_ERR_FMA_REQ	0x8
93 
94 #define	MEM_FMRI_MAX_BUFSIZE	8192	/* maximum allowed packed FMRI size */
95 
96 typedef struct mem_name {
97 	uint64_t	m_addr;		/* memory address */
98 	uint64_t	m_synd;		/* architecture-specific syndrome */
99 	uint64_t	m_type[2];	/* architecture-specific type */
100 	caddr_t		m_name;		/* memory name buffer */
101 	size_t		m_namelen;	/* memory name buffer length */
102 	caddr_t		m_sid;		/* memory serial id buffer */
103 	size_t		m_sidlen;	/* memory serial id buffer length */
104 } mem_name_t;
105 
106 #if	defined(_SYSCALL32)
107 typedef struct mem_name32 {
108 	uint64_t	m_addr;
109 	uint64_t	m_synd;
110 	uint64_t	m_type[2];
111 	caddr32_t	m_name;
112 	size32_t	m_namelen;
113 	caddr32_t	m_sid;
114 	size32_t	m_sidlen;
115 } mem_name32_t;
116 #endif	/* _SYSCALL32 */
117 
118 typedef struct mem_info {
119 	uint64_t	m_addr;		/* memory address */
120 	uint64_t	m_synd;		/* architecture-specific syndrome */
121 	uint64_t	m_mem_size;	/* total memory size */
122 	uint64_t	m_seg_size;	/* segment size */
123 	uint64_t	m_bank_size;	/* bank size */
124 	int		m_segments;	/* # of segments */
125 	int		m_banks;	/* # of banks in segment */
126 	int		m_mcid;		/* associated memory controller id */
127 } mem_info_t;
128 
129 #ifdef	_KERNEL
130 
131 extern pfn_t impl_obmem_pfnum(pfn_t);
132 
133 extern int plat_mem_do_mmio(struct uio *, enum uio_rw);
134 
135 typedef struct mm_logentry {
136 	uintptr_t	mle_vaddr;	/* vaddr being written to */
137 	size_t		mle_len;	/* length of write */
138 	timespec_t	mle_hrestime;	/* hrestime at time of write */
139 	hrtime_t	mle_hrtime;	/* hrtime at time of write */
140 	pid_t		mle_pid;	/* pid of writing process */
141 	char		mle_psargs[80];	/* psargs of writing process */
142 } mm_logentry_t;
143 
144 #endif	/* _KERNEL */
145 
146 #ifdef	__cplusplus
147 }
148 #endif
149 
150 #endif	/* _SYS_MEM_H */
151