xref: /titanic_50/usr/src/uts/sun4v/sys/error.h (revision 074bb90d80fdbeb2d04a8450a55ecbc96de28785)
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 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_ERROR_H
27 #define	_ERROR_H
28 
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32 
33 /*
34  * Resumable and Non-resumable queues
35  */
36 #define	CPU_RQ_ENTRIES		64
37 #define	MAX_CPU_RQ_ENTRIES	128
38 
39 #define	CPU_NRQ_ENTRIES		4
40 #define	MAX_CPU_NRQ_ENTRIES	4
41 
42 #define	Q_ENTRY_SIZE		64
43 
44 #define	CPU_RQ_SIZE		(CPU_RQ_ENTRIES * Q_ENTRY_SIZE)
45 #define	CPU_NRQ_SIZE		(CPU_NRQ_ENTRIES * Q_ENTRY_SIZE)
46 
47 /*
48  * Sun4v Error Report error Descriptor describes the type of the error
49  */
50 #define	ERRH_DESC_UNDEFINED	0	/* Undefined */
51 #define	ERRH_DESC_UCOR_RE	1	/* Uncorrected resumable error */
52 #define	ERRH_DESC_PR_NRE	2	/* Precise non-resumable error */
53 #define	ERRH_DESC_DEF_NRE	3	/* Deferred non-resumalbe error */
54 #define	ERRH_DESC_WARN_RE	4	/* Power-off for vBSC HostShutdown() */
55 #define	ERRH_DESC_USER_DCORE	5	/* User initiated panic */
56 
57 /*
58  * Sun4v Error Report Error Attributes specifies the attributes of the error
59  */
60 #define	ERRH_ATTR_CPU		0x00000001
61 #define	ERRH_ATTR_MEM		0x00000002
62 #define	ERRH_ATTR_PIO		0x00000004
63 #define	ERRH_ATTR_IRF		0x00000008	/* Integer register file */
64 /* Floating-point register file */
65 #define	ERRH_ATTR_FRF		0x00000010
66 #define	ERRH_ATTR_SHUT		0x00000020	/* Shutdown request */
67 #define	ERRH_ATTR_ASR		0x00000040	/* Sun4v ASR */
68 #define	ERRH_ATTR_ASI		0x00000080	/* Sun4v ASI */
69 #define	ERRH_ATTR_PREG		0x00000100	/* Sun4v Privileged Register */
70 #define	ERRH_ATTR_RQF		0x80000000	/* Resumablee Queue Full */
71 
72 /*
73  * For Excution mode
74  */
75 #define	ERRH_MODE_MASK		0x03000000
76 #define	ERRH_MODE_SHIFT		24
77 #define	ERRH_MODE_UNKNOWN	0
78 #define	ERRH_MODE_USER		1
79 #define	ERRH_MODE_PRIV		2
80 
81 /*
82  * ASR register number
83  */
84 #define	ASR_REG_VALID		0x8000	/* Valid bit for register field */
85 #define	ASR_REG_TICK		0x17	/* Tick Compare Register */
86 
87 /*
88  * For the second argument passed to process_nonresumable_error(), it is
89  * an uint64_t. The upper 32 bits are reserved for various flags, the
90  * lower 32 bits are used to pass the "current tl-1". Right now only bit
91  * 32 in the upper 32 bits is being used as user's fill/spill flag.
92  * If bit 32 is set, it means the first error in the error
93  * queue happened in user fill/spill trap and it needs to be handled
94  * differently.
95  *
96  * -Argument 2 of process_nonresumable_error()
97  *    ----------------------------------------------
98  *    |  reserved        |x|  current_tl - 1       |
99  *    ----------------------------------------------
100  *    63                 32 31                     0
101  * x - bit 32, user fill/spill trap flag
102  */
103 #define	ERRH_U_SPILL_FILL		0x100000000
104 #define	ERRH_U_SPILL_FILL_SHIFT		32
105 #define	ERRH_TL_MASK			0xffffffff
106 
107 #ifndef	_ASM
108 /*
109  * For debug print out
110  */
111 #define	ER_SZ_IN_EXT_WORD	(Q_ENTRY_SIZE / sizeof (uint64_t))
112 
113 /*
114  * Sun4v Error Report record
115  */
116 typedef	struct {
117 	uint64_t	ehdl;		/* Unique error handle */
118 	uint64_t	stick;		/* Value of the %STICK register */
119 	uint32_t	desc;		/* Error Descriptor */
120 	uint32_t	attr;		/* error attributes bit field */
121 	uint64_t	ra;		/* Real address */
122 	uint32_t	sz;		/* Size of affected mem region */
123 	uint16_t	cpuid;		/* Virtual ID of the affected CPU */
124 	uint16_t	secs;		/* Seconds */
125 	uint8_t		asi;		/* ASI */
126 	uint8_t		rsvd;		/* Padding for ASI */
127 	uint16_t	reg;		/* Value of the ASR register number */
128 } errh_er_t;
129 
130 typedef struct errh_async_flt {
131 	struct async_flt 	cmn_asyncflt;	/* common fault structure */
132 	errh_er_t		errh_er;	/* sun4v er record */
133 } errh_async_flt_t;
134 
135 /*
136  * Global functions
137  */
138 void mem_scrub(uint64_t, uint64_t);
139 void errh_cpu_run_bus_error_handlers(struct async_flt *, int);
140 void error_init(void);
141 void cpu_async_log_err(void *);
142 void cpu_ce_log_err(struct async_flt *);
143 void cpu_ue_log_err(struct async_flt *);
144 uint64_t mem_sync(caddr_t, size_t);
145 
146 #endif	/* _ASM */
147 
148 #ifdef __cplusplus
149 }
150 #endif
151 
152 #endif /* _ERROR_H */
153