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/arch/alpha/kernel/err_ev7.c

https://gitlab.com/vogoplayer-tools/xz0032-linux
C | 286 lines | 216 code | 35 blank | 35 comment | 15 complexity | afef1ec38a597c21e499dfab23c51226 MD5 | raw file
  1/*
  2 *	linux/arch/alpha/kernel/err_ev7.c
  3 *
  4 *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
  5 *
  6 *	Error handling code supporting Alpha systems
  7 */
  8
  9#include <linux/init.h>
 10#include <linux/sched.h>
 11
 12#include <asm/io.h>
 13#include <asm/hwrpb.h>
 14#include <asm/smp.h>
 15#include <asm/err_common.h>
 16#include <asm/err_ev7.h>
 17
 18#include "err_impl.h"
 19#include "proto.h"
 20
 21struct ev7_lf_subpackets *
 22ev7_collect_logout_frame_subpackets(struct el_subpacket *el_ptr,
 23				    struct ev7_lf_subpackets *lf_subpackets)
 24{
 25	struct el_subpacket *subpacket;
 26	int i;
 27
 28	/*
 29	 * A Marvel machine check frame is always packaged in an
 30	 * el_subpacket of class HEADER, type LOGOUT_FRAME.
 31	 */
 32	if (el_ptr->class != EL_CLASS__HEADER || 
 33	    el_ptr->type != EL_TYPE__HEADER__LOGOUT_FRAME)
 34		return NULL;
 35
 36	/*
 37	 * It is a logout frame header. Look at the one subpacket.
 38	 */
 39	el_ptr = (struct el_subpacket *)
 40		((unsigned long)el_ptr + el_ptr->length);
 41
 42	/*
 43	 * It has to be class PAL, type LOGOUT_FRAME.
 44	 */
 45	if (el_ptr->class != EL_CLASS__PAL ||
 46	    el_ptr->type != EL_TYPE__PAL__LOGOUT_FRAME)
 47		return NULL;
 48
 49	lf_subpackets->logout = (struct ev7_pal_logout_subpacket *)
 50		el_ptr->by_type.raw.data_start;
 51
 52	/*
 53	 * Process the subpackets.
 54	 */
 55	subpacket = (struct el_subpacket *)
 56		((unsigned long)el_ptr + el_ptr->length);
 57	for (i = 0;
 58	     subpacket && i < lf_subpackets->logout->subpacket_count;
 59	     subpacket = (struct el_subpacket *)
 60		     ((unsigned long)subpacket + subpacket->length), i++) {
 61		/*
 62		 * All subpackets should be class PAL.
 63		 */
 64		if (subpacket->class != EL_CLASS__PAL) {
 65			printk("%s**UNEXPECTED SUBPACKET CLASS %d "
 66			       "IN LOGOUT FRAME (packet %d\n",
 67			       err_print_prefix, subpacket->class, i);
 68			return NULL;
 69		}
 70
 71		/*
 72		 * Remember the subpacket.
 73		 */
 74		switch(subpacket->type) {
 75		case EL_TYPE__PAL__EV7_PROCESSOR:
 76			lf_subpackets->ev7 =
 77				(struct ev7_pal_processor_subpacket *)
 78				subpacket->by_type.raw.data_start;
 79			break;
 80
 81		case EL_TYPE__PAL__EV7_RBOX:
 82			lf_subpackets->rbox = (struct ev7_pal_rbox_subpacket *)
 83				subpacket->by_type.raw.data_start;
 84			break;
 85
 86		case EL_TYPE__PAL__EV7_ZBOX:
 87			lf_subpackets->zbox = (struct ev7_pal_zbox_subpacket *)
 88				subpacket->by_type.raw.data_start;
 89			break;
 90
 91		case EL_TYPE__PAL__EV7_IO:
 92			lf_subpackets->io = (struct ev7_pal_io_subpacket *)
 93				subpacket->by_type.raw.data_start;
 94			break;
 95
 96		case EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE:
 97		case EL_TYPE__PAL__ENV__AIRMOVER_FAN:
 98		case EL_TYPE__PAL__ENV__VOLTAGE:
 99		case EL_TYPE__PAL__ENV__INTRUSION:
100		case EL_TYPE__PAL__ENV__POWER_SUPPLY:
101		case EL_TYPE__PAL__ENV__LAN:
102		case EL_TYPE__PAL__ENV__HOT_PLUG:
103			lf_subpackets->env[ev7_lf_env_index(subpacket->type)] =
104 				(struct ev7_pal_environmental_subpacket *)
105				subpacket->by_type.raw.data_start;
106			break;
107				
108		default:
109			/*
110			 * Don't know what kind of frame this is.
111			 */
112			return NULL;
113		}
114	}
115
116	return lf_subpackets;
117}
118
119void
120ev7_machine_check(unsigned long vector, unsigned long la_ptr)
121{
122	struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
123	char *saved_err_prefix = err_print_prefix;
124
125	/*
126	 * Sync the processor
127	 */
128	mb();
129	draina();
130
131	err_print_prefix = KERN_CRIT;
132	printk("%s*CPU %s Error (Vector 0x%x) reported on CPU %d\n",
133	       err_print_prefix, 
134	       (vector == SCB_Q_PROCERR) ? "Correctable" : "Uncorrectable",
135	       (unsigned int)vector, (int)smp_processor_id());
136	el_process_subpacket(el_ptr);
137	err_print_prefix = saved_err_prefix;
138
139	/* 
140	 * Release the logout frame 
141	 */
142	wrmces(0x7);
143	mb();
144}
145
146static char *el_ev7_processor_subpacket_annotation[] = {
147	"Subpacket Header",	"I_STAT",	"DC_STAT",
148	"C_ADDR",		"C_SYNDROME_1",	"C_SYNDROME_0",
149	"C_STAT",		"C_STS",	"MM_STAT",
150	"EXC_ADDR",		"IER_CM",	"ISUM",
151	"PAL_BASE",		"I_CTL",	"PROCESS_CONTEXT",
152	"CBOX_CTL",		"CBOX_STP_CTL",	"CBOX_ACC_CTL",
153	"CBOX_LCL_SET",		"CBOX_GLB_SET",	"BBOX_CTL",
154	"BBOX_ERR_STS",		"BBOX_ERR_IDX",	"CBOX_DDP_ERR_STS",
155	"BBOX_DAT_RMP",		NULL
156};
157
158static char *el_ev7_zbox_subpacket_annotation[] = {
159	"Subpacket Header", 	
160	"ZBOX(0): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
161	"ZBOX(0): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
162	"ZBOX(0): DIFT_TIMEOUT      / DRAM_ERR_ADR",
163	"ZBOX(0): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
164	"ZBOX(0): reserved          / DIFT_ERR_STATUS",
165	"ZBOX(1): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
166	"ZBOX(1): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
167	"ZBOX(1): DIFT_TIMEOUT      / DRAM_ERR_ADR",
168	"ZBOX(1): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
169	"ZBOX(1): reserved          / DIFT_ERR_STATUS",
170	"CBOX_CTL",		"CBOX_STP_CTL",
171	"ZBOX(0)_ERROR_PA",	"ZBOX(1)_ERROR_PA",
172	"ZBOX(0)_ORED_SYNDROME","ZBOX(1)_ORED_SYNDROME",
173	NULL
174};
175
176static char *el_ev7_rbox_subpacket_annotation[] = {
177	"Subpacket Header",	"RBOX_CFG",	"RBOX_N_CFG",
178	"RBOX_S_CFG",		"RBOX_E_CFG",	"RBOX_W_CFG",
179	"RBOX_N_ERR",		"RBOX_S_ERR",	"RBOX_E_ERR",
180	"RBOX_W_ERR",		"RBOX_IO_CFG",	"RBOX_IO_ERR",
181	"RBOX_L_ERR",		"RBOX_WHOAMI",	"RBOX_IMASL",
182	"RBOX_INTQ",		"RBOX_INT",	NULL
183};
184
185static char *el_ev7_io_subpacket_annotation[] = {
186	"Subpacket Header",	"IO_ASIC_REV",	"IO_SYS_REV",
187	"IO7_UPH",		"HPI_CTL",	"CRD_CTL",
188	"HEI_CTL",		"PO7_ERROR_SUM","PO7_UNCRR_SYM",
189	"PO7_CRRCT_SYM",	"PO7_UGBGE_SYM","PO7_ERR_PKT0",
190	"PO7_ERR_PKT1",		"reserved",	"reserved",
191	"PO0_ERR_SUM",		"PO0_TLB_ERR",	"PO0_SPL_COMPLT",
192	"PO0_TRANS_SUM",	"PO0_FIRST_ERR","PO0_MULT_ERR",
193	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
194	"DM CSR PH",		"reserved",
195	"PO1_ERR_SUM",		"PO1_TLB_ERR",	"PO1_SPL_COMPLT",
196	"PO1_TRANS_SUM",	"PO1_FIRST_ERR","PO1_MULT_ERR",
197	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
198	"DM CSR PH",		"reserved",
199	"PO2_ERR_SUM",		"PO2_TLB_ERR",	"PO2_SPL_COMPLT",
200	"PO2_TRANS_SUM",	"PO2_FIRST_ERR","PO2_MULT_ERR",
201	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
202	"DM CSR PH",		"reserved",
203	"PO3_ERR_SUM",		"PO3_TLB_ERR",	"PO3_SPL_COMPLT",
204	"PO3_TRANS_SUM",	"PO3_FIRST_ERR","PO3_MULT_ERR",
205	"DM CSR PH",		"DM CSR PH",	"DM CSR PH",
206	"DM CSR PH",		"reserved",	
207	NULL
208};
209	
210static struct el_subpacket_annotation el_ev7_pal_annotations[] = {
211	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
212			     EL_TYPE__PAL__EV7_PROCESSOR,
213			     1,
214			     "EV7 Processor Subpacket",
215			     el_ev7_processor_subpacket_annotation),
216	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
217			     EL_TYPE__PAL__EV7_ZBOX,
218			     1,
219			     "EV7 ZBOX Subpacket",
220			     el_ev7_zbox_subpacket_annotation),
221	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
222			     EL_TYPE__PAL__EV7_RBOX,
223			     1,
224			     "EV7 RBOX Subpacket",
225			     el_ev7_rbox_subpacket_annotation),
226	SUBPACKET_ANNOTATION(EL_CLASS__PAL,
227			     EL_TYPE__PAL__EV7_IO,
228			     1,
229			     "EV7 IO Subpacket",
230			     el_ev7_io_subpacket_annotation)
231};
232
233static struct el_subpacket *
234ev7_process_pal_subpacket(struct el_subpacket *header)
235{
236	struct ev7_pal_subpacket *packet;
237
238	if (header->class != EL_CLASS__PAL) {
239		printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
240		       err_print_prefix,
241		       header->class, header->type);
242		return NULL;
243	}
244
245	packet = (struct ev7_pal_subpacket *)header->by_type.raw.data_start;
246
247	switch(header->type) {
248	case EL_TYPE__PAL__LOGOUT_FRAME:
249		printk("%s*** MCHK occurred on LPID %lld (RBOX %llx)\n",
250		       err_print_prefix,
251		       packet->by_type.logout.whami, 
252		       packet->by_type.logout.rbox_whami);
253		el_print_timestamp(&packet->by_type.logout.timestamp);
254		printk("%s  EXC_ADDR: %016llx\n"
255		         "  HALT_CODE: %llx\n",
256		       err_print_prefix,
257		       packet->by_type.logout.exc_addr,
258		       packet->by_type.logout.halt_code);
259		el_process_subpackets(header,
260                                      packet->by_type.logout.subpacket_count);
261		break;
262	default:
263		printk("%s  ** PAL TYPE %d SUBPACKET\n", 
264		       err_print_prefix,
265		       header->type);
266		el_annotate_subpacket(header);
267		break;
268	}
269	
270	return (struct el_subpacket *)((unsigned long)header + header->length);
271}
272
273struct el_subpacket_handler ev7_pal_subpacket_handler =
274	SUBPACKET_HANDLER_INIT(EL_CLASS__PAL, ev7_process_pal_subpacket);
275
276void __init
277ev7_register_error_handlers(void)
278{
279	int i;
280
281	for (i = 0; i < ARRAY_SIZE(el_ev7_pal_annotations); i++)
282		cdl_register_subpacket_annotation(&el_ev7_pal_annotations[i]);
283
284	cdl_register_subpacket_handler(&ev7_pal_subpacket_handler);
285}
286