summaryrefslogtreecommitdiff
path: root/arch/alpha/kernel/err_ev7.c
blob: 565de1acf1f53d21de448e8c4a7d0ca5d5fc5832 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
// SPDX-License-Identifier: GPL-2.0
/*
 *	linux/arch/alpha/kernel/err_ev7.c
 *
 *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
 *
 *	Error handling code supporting Alpha systems
 */

#include <linux/init.h>
#include <linux/sched.h>

#include <asm/io.h>
#include <asm/hwrpb.h>
#include <asm/smp.h>
#include <asm/err_common.h>
#include <asm/err_ev7.h>

#include "err_impl.h"
#include "proto.h"

struct ev7_lf_subpackets *
ev7_collect_logout_frame_subpackets(struct el_subpacket *el_ptr,
				    struct ev7_lf_subpackets *lf_subpackets)
{
	struct el_subpacket *subpacket;
	int i;

	/*
	 * A Marvel machine check frame is always packaged in an
	 * el_subpacket of class HEADER, type LOGOUT_FRAME.
	 */
	if (el_ptr->class != EL_CLASS__HEADER || 
	    el_ptr->type != EL_TYPE__HEADER__LOGOUT_FRAME)
		return NULL;

	/*
	 * It is a logout frame header. Look at the one subpacket.
	 */
	el_ptr = (struct el_subpacket *)
		((unsigned long)el_ptr + el_ptr->length);

	/*
	 * It has to be class PAL, type LOGOUT_FRAME.
	 */
	if (el_ptr->class != EL_CLASS__PAL ||
	    el_ptr->type != EL_TYPE__PAL__LOGOUT_FRAME)
		return NULL;

	lf_subpackets->logout = (struct ev7_pal_logout_subpacket *)
		el_ptr->by_type.raw.data_start;

	/*
	 * Process the subpackets.
	 */
	subpacket = (struct el_subpacket *)
		((unsigned long)el_ptr + el_ptr->length);
	for (i = 0;
	     subpacket && i < lf_subpackets->logout->subpacket_count;
	     subpacket = (struct el_subpacket *)
		     ((unsigned long)subpacket + subpacket->length), i++) {
		/*
		 * All subpackets should be class PAL.
		 */
		if (subpacket->class != EL_CLASS__PAL) {
			printk("%s**UNEXPECTED SUBPACKET CLASS %d "
			       "IN LOGOUT FRAME (packet %d\n",
			       err_print_prefix, subpacket->class, i);
			return NULL;
		}

		/*
		 * Remember the subpacket.
		 */
		switch(subpacket->type) {
		case EL_TYPE__PAL__EV7_PROCESSOR:
			lf_subpackets->ev7 =
				(struct ev7_pal_processor_subpacket *)
				subpacket->by_type.raw.data_start;
			break;

		case EL_TYPE__PAL__EV7_RBOX:
			lf_subpackets->rbox = (struct ev7_pal_rbox_subpacket *)
				subpacket->by_type.raw.data_start;
			break;

		case EL_TYPE__PAL__EV7_ZBOX:
			lf_subpackets->zbox = (struct ev7_pal_zbox_subpacket *)
				subpacket->by_type.raw.data_start;
			break;

		case EL_TYPE__PAL__EV7_IO:
			lf_subpackets->io = (struct ev7_pal_io_subpacket *)
				subpacket->by_type.raw.data_start;
			break;

		case EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE:
		case EL_TYPE__PAL__ENV__AIRMOVER_FAN:
		case EL_TYPE__PAL__ENV__VOLTAGE:
		case EL_TYPE__PAL__ENV__INTRUSION:
		case EL_TYPE__PAL__ENV__POWER_SUPPLY:
		case EL_TYPE__PAL__ENV__LAN:
		case EL_TYPE__PAL__ENV__HOT_PLUG:
			lf_subpackets->env[ev7_lf_env_index(subpacket->type)] =
 				(struct ev7_pal_environmental_subpacket *)
				subpacket->by_type.raw.data_start;
			break;
				
		default:
			/*
			 * Don't know what kind of frame this is.
			 */
			return NULL;
		}
	}

	return lf_subpackets;
}

void
ev7_machine_check(unsigned long vector, unsigned long la_ptr)
{
	struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
	char *saved_err_prefix = err_print_prefix;

	/*
	 * Sync the processor
	 */
	mb();
	draina();

	err_print_prefix = KERN_CRIT;
	printk("%s*CPU %s Error (Vector 0x%x) reported on CPU %d\n",
	       err_print_prefix, 
	       (vector == SCB_Q_PROCERR) ? "Correctable" : "Uncorrectable",
	       (unsigned int)vector, (int)smp_processor_id());
	el_process_subpacket(el_ptr);
	err_print_prefix = saved_err_prefix;

	/* 
	 * Release the logout frame 
	 */
	wrmces(0x7);
	mb();
}

static char *el_ev7_processor_subpacket_annotation[] = {
	"Subpacket Header",	"I_STAT",	"DC_STAT",
	"C_ADDR",		"C_SYNDROME_1",	"C_SYNDROME_0",
	"C_STAT",		"C_STS",	"MM_STAT",
	"EXC_ADDR",		"IER_CM",	"ISUM",
	"PAL_BASE",		"I_CTL",	"PROCESS_CONTEXT",
	"CBOX_CTL",		"CBOX_STP_CTL",	"CBOX_ACC_CTL",
	"CBOX_LCL_SET",		"CBOX_GLB_SET",	"BBOX_CTL",
	"BBOX_ERR_STS",		"BBOX_ERR_IDX",	"CBOX_DDP_ERR_STS",
	"BBOX_DAT_RMP",		NULL
};

static char *el_ev7_zbox_subpacket_annotation[] = {
	"Subpacket Header", 	
	"ZBOX(0): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
	"ZBOX(0): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
	"ZBOX(0): DIFT_TIMEOUT      / DRAM_ERR_ADR",
	"ZBOX(0): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
	"ZBOX(0): reserved          / DIFT_ERR_STATUS",
	"ZBOX(1): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
	"ZBOX(1): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
	"ZBOX(1): DIFT_TIMEOUT      / DRAM_ERR_ADR",
	"ZBOX(1): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
	"ZBOX(1): reserved          / DIFT_ERR_STATUS",
	"CBOX_CTL",		"CBOX_STP_CTL",
	"ZBOX(0)_ERROR_PA",	"ZBOX(1)_ERROR_PA",
	"ZBOX(0)_ORED_SYNDROME","ZBOX(1)_ORED_SYNDROME",
	NULL
};

static char *el_ev7_rbox_subpacket_annotation[] = {
	"Subpacket Header",	"RBOX_CFG",	"RBOX_N_CFG",
	"RBOX_S_CFG",		"RBOX_E_CFG",	"RBOX_W_CFG",
	"RBOX_N_ERR",		"RBOX_S_ERR",	"RBOX_E_ERR",
	"RBOX_W_ERR",		"RBOX_IO_CFG",	"RBOX_IO_ERR",
	"RBOX_L_ERR",		"RBOX_WHOAMI",	"RBOX_IMASL",
	"RBOX_INTQ",		"RBOX_INT",	NULL
};

static char *el_ev7_io_subpacket_annotation[] = {
	"Subpacket Header",	"IO_ASIC_REV",	"IO_SYS_REV",
	"IO7_UPH",		"HPI_CTL",	"CRD_CTL",
	"HEI_CTL",		"PO7_ERROR_SUM","PO7_UNCRR_SYM",
	"PO7_CRRCT_SYM",	"PO7_UGBGE_SYM","PO7_ERR_PKT0",
	"PO7_ERR_PKT1",		"reserved",	"reserved",
	"PO0_ERR_SUM",		"PO0_TLB_ERR",	"PO0_SPL_COMPLT",
	"PO0_TRANS_SUM",	"PO0_FIRST_ERR","PO0_MULT_ERR",
	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
	"DM CSR PH",		"reserved",
	"PO1_ERR_SUM",		"PO1_TLB_ERR",	"PO1_SPL_COMPLT",
	"PO1_TRANS_SUM",	"PO1_FIRST_ERR","PO1_MULT_ERR",
	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
	"DM CSR PH",		"reserved",
	"PO2_ERR_SUM",		"PO2_TLB_ERR",	"PO2_SPL_COMPLT",
	"PO2_TRANS_SUM",	"PO2_FIRST_ERR","PO2_MULT_ERR",
	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
	"DM CSR PH",		"reserved",
	"PO3_ERR_SUM",		"PO3_TLB_ERR",	"PO3_SPL_COMPLT",
	"PO3_TRANS_SUM",	"PO3_FIRST_ERR","PO3_MULT_ERR",
	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
	"DM CSR PH",		"reserved",	
	NULL
};
	
static struct el_subpacket_annotation el_ev7_pal_annotations[] = {
	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
			     EL_TYPE__PAL__EV7_PROCESSOR,
			     1,
			     "EV7 Processor Subpacket",
			     el_ev7_processor_subpacket_annotation),
	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
			     EL_TYPE__PAL__EV7_ZBOX,
			     1,
			     "EV7 ZBOX Subpacket",
			     el_ev7_zbox_subpacket_annotation),
	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
			     EL_TYPE__PAL__EV7_RBOX,
			     1,
			     "EV7 RBOX Subpacket",
			     el_ev7_rbox_subpacket_annotation),
	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
			     EL_TYPE__PAL__EV7_IO,
			     1,
			     "EV7 IO Subpacket",
			     el_ev7_io_subpacket_annotation)
};

static struct el_subpacket *
ev7_process_pal_subpacket(struct el_subpacket *header)
{
	struct ev7_pal_subpacket *packet;

	if (header->class != EL_CLASS__PAL) {
		printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
		       err_print_prefix,
		       header->class, header->type);
		return NULL;
	}

	packet = (struct ev7_pal_subpacket *)header->by_type.raw.data_start;

	switch(header->type) {
	case EL_TYPE__PAL__LOGOUT_FRAME:
		printk("%s*** MCHK occurred on LPID %lld (RBOX %llx)\n",
		       err_print_prefix,
		       packet->by_type.logout.whami, 
		       packet->by_type.logout.rbox_whami);
		el_print_timestamp(&packet->by_type.logout.timestamp);
		printk("%s  EXC_ADDR: %016llx\n"
		         "  HALT_CODE: %llx\n",
		       err_print_prefix,
		       packet->by_type.logout.exc_addr,
		       packet->by_type.logout.halt_code);
		el_process_subpackets(header,
                                      packet->by_type.logout.subpacket_count);
		break;
	default:
		printk("%s  ** PAL TYPE %d SUBPACKET\n", 
		       err_print_prefix,
		       header->type);
		el_annotate_subpacket(header);
		break;
	}
	
	return (struct el_subpacket *)((unsigned long)header + header->length);
}

struct el_subpacket_handler ev7_pal_subpacket_handler =
	SUBPACKET_HANDLER_INIT(EL_CLASS__PAL, ev7_process_pal_subpacket);

void __init
ev7_register_error_handlers(void)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(el_ev7_pal_annotations); i++)
		cdl_register_subpacket_annotation(&el_ev7_pal_annotations[i]);

	cdl_register_subpacket_handler(&ev7_pal_subpacket_handler);
}