xref: /illumos-gate/usr/src/uts/common/sys/mem.h (revision b1c760bd)
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  * Copyright (c) 2017 James S Blachly, MD <james.blachly@gmail.com>
29  */
30 
31 #ifndef _SYS_MEM_H
32 #define	_SYS_MEM_H
33 
34 #ifdef	__cplusplus
35 extern "C" {
36 #endif
37 
38 #include <sys/types.h>
39 #include <sys/uio.h>
40 
41 /*
42  * Memory Device Minor Numbers
43  */
44 #define	M_MEM		0	/* /dev/mem - physical main memory */
45 #define	M_KMEM		1	/* /dev/kmem - virtual kernel memory */
46 #define	M_NULL		2	/* /dev/null - EOF & Rathole */
47 #define	M_ALLKMEM	3	/* /dev/allkmem - virtual kernel memory & I/O */
48 #define	M_ZERO		12	/* /dev/zero - source of private memory */
49 #define	M_FULL		13	/* /dev/full - write always ret ENOSPC */
50 
51 /*
52  * Private ioctl for libkvm: translate virtual address to physical address.
53  */
54 #define	MEM_VTOP		(('M' << 8) | 0x01)
55 
56 typedef struct mem_vtop {
57 	struct as	*m_as;
58 	void		*m_va;
59 	pfn_t		m_pfn;
60 } mem_vtop_t;
61 
62 #if defined(_SYSCALL32)
63 typedef struct mem_vtop32 {
64 	uint32_t	m_as;
65 	uint32_t	m_va;
66 	uint32_t	m_pfn;
67 } mem_vtop32_t;
68 #endif
69 
70 /*
71  * Private ioctls for fmd(1M).  These interfaces are Sun Private.  Applications
72  * and drivers should not make use of these interfaces: they can change without
73  * notice and programs that consume them will fail to run on future releases.
74  */
75 #define	MEM_NAME		(('M' << 8) | 0x04)
76 #define	MEM_INFO		(('M' << 8) | 0x05)
77 
78 #define	MEM_PAGE_RETIRE		(('M' << 8) | 0x02)
79 #define	MEM_PAGE_ISRETIRED	(('M' << 8) | 0x03)
80 #define	MEM_PAGE_UNRETIRE	(('M' << 8) | 0x06)
81 #define	MEM_PAGE_GETERRORS	(('M' << 8) | 0x07)
82 #define	MEM_PAGE_RETIRE_MCE	(('M' << 8) | 0x08)
83 #define	MEM_PAGE_RETIRE_UE	(('M' << 8) | 0x09)
84 #define	MEM_PAGE_RETIRE_TEST	(('M' << 8) | 0x0A)
85 
86 #define	MEM_SID			(('M' << 8) | 0x0B)
87 
88 /*
89  * Bits returned from MEM_PAGE_GETERRORS ioctl for use by fmd(1M).
90  */
91 #define	MEM_PAGE_ERR_NONE	0x0
92 #define	MEM_PAGE_ERR_MULTI_CE	0x1
93 #define	MEM_PAGE_ERR_UE		0x2
94 #define	MEM_PAGE_ERR_FMA_REQ	0x8
95 
96 #define	MEM_FMRI_MAX_BUFSIZE	8192	/* maximum allowed packed FMRI size */
97 
98 typedef struct mem_name {
99 	uint64_t	m_addr;		/* memory address */
100 	uint64_t	m_synd;		/* architecture-specific syndrome */
101 	uint64_t	m_type[2];	/* architecture-specific type */
102 	caddr_t		m_name;		/* memory name buffer */
103 	size_t		m_namelen;	/* memory name buffer length */
104 	caddr_t		m_sid;		/* memory serial id buffer */
105 	size_t		m_sidlen;	/* memory serial id buffer length */
106 } mem_name_t;
107 
108 #if	defined(_SYSCALL32)
109 typedef struct mem_name32 {
110 	uint64_t	m_addr;
111 	uint64_t	m_synd;
112 	uint64_t	m_type[2];
113 	caddr32_t	m_name;
114 	size32_t	m_namelen;
115 	caddr32_t	m_sid;
116 	size32_t	m_sidlen;
117 } mem_name32_t;
118 #endif	/* _SYSCALL32 */
119 
120 typedef struct mem_info {
121 	uint64_t	m_addr;		/* memory address */
122 	uint64_t	m_synd;		/* architecture-specific syndrome */
123 	uint64_t	m_mem_size;	/* total memory size */
124 	uint64_t	m_seg_size;	/* segment size */
125 	uint64_t	m_bank_size;	/* bank size */
126 	int		m_segments;	/* # of segments */
127 	int		m_banks;	/* # of banks in segment */
128 	int		m_mcid;		/* associated memory controller id */
129 } mem_info_t;
130 
131 #ifdef	_KERNEL
132 
133 extern pfn_t impl_obmem_pfnum(pfn_t);
134 
135 extern int plat_mem_do_mmio(struct uio *, enum uio_rw);
136 
137 typedef struct mm_logentry {
138 	uintptr_t	mle_vaddr;	/* vaddr being written to */
139 	size_t		mle_len;	/* length of write */
140 	timespec_t	mle_hrestime;	/* hrestime at time of write */
141 	hrtime_t	mle_hrtime;	/* hrtime at time of write */
142 	pid_t		mle_pid;	/* pid of writing process */
143 	char		mle_psargs[80];	/* psargs of writing process */
144 } mm_logentry_t;
145 
146 #endif	/* _KERNEL */
147 
148 #ifdef	__cplusplus
149 }
150 #endif
151 
152 #endif	/* _SYS_MEM_H */
153