Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 321 insertions, 0 deletions

diff --git a/arch/alpha/kernel/err_common.c b/arch/alpha/kernel/err_common.c
new file mode 100644
index 000000000..94e1b3dcf
--- /dev/null
+++ b/arch/alpha/kernel/err_common.c
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *	linux/arch/alpha/kernel/err_common.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 "err_impl.h"
+#include "proto.h"
+
+/*
+ * err_print_prefix -- error handling print routines should prefix
+ * all prints with this
+ */
+char *err_print_prefix = KERN_NOTICE;
+
+
+/*
+ * Generic
+ */
+void
+mchk_dump_mem(void *data, size_t length, char **annotation)
+{
+	unsigned long *ldata = data;
+	size_t i;
+	
+	for (i = 0; (i * sizeof(*ldata)) < length; i++) {
+		if (annotation && !annotation[i]) 
+			annotation = NULL;
+		printk("%s    %08x: %016lx    %s\n",
+		       err_print_prefix,
+		       (unsigned)(i * sizeof(*ldata)), ldata[i],
+		       annotation ? annotation[i] : "");
+	}
+}
+
+void
+mchk_dump_logout_frame(struct el_common *mchk_header)
+{
+	printk("%s  -- Frame Header --\n"
+	         "    Frame Size:   %d (0x%x) bytes\n"
+	         "    Flags:        %s%s\n"
+	         "    MCHK Code:    0x%x\n"
+	         "    Frame Rev:    %d\n"
+	         "    Proc Offset:  0x%08x\n"
+	         "    Sys Offset:   0x%08x\n"
+  	         "  -- Processor Region --\n",
+	       err_print_prefix, 
+	       mchk_header->size, mchk_header->size,
+	       mchk_header->retry ? "RETRY " : "", 
+  	         mchk_header->err2 ? "SECOND_ERR " : "",
+	       mchk_header->code,
+	       mchk_header->frame_rev,
+	       mchk_header->proc_offset,
+	       mchk_header->sys_offset);
+
+	mchk_dump_mem((void *)
+		      ((unsigned long)mchk_header + mchk_header->proc_offset),
+		      mchk_header->sys_offset - mchk_header->proc_offset,
+		      NULL);
+	
+	printk("%s  -- System Region --\n", err_print_prefix);
+	mchk_dump_mem((void *)
+		      ((unsigned long)mchk_header + mchk_header->sys_offset),
+		      mchk_header->size - mchk_header->sys_offset,
+		      NULL);
+	printk("%s  -- End of Frame --\n", err_print_prefix);
+}
+
+
+/*
+ * Console Data Log
+ */
+/* Data */
+static struct el_subpacket_handler *subpacket_handler_list = NULL;
+static struct el_subpacket_annotation *subpacket_annotation_list = NULL;
+
+static struct el_subpacket *
+el_process_header_subpacket(struct el_subpacket *header)
+{
+	union el_timestamp timestamp;
+	char *name = "UNKNOWN EVENT";
+	int packet_count = 0;
+	int length = 0;
+
+	if (header->class != EL_CLASS__HEADER) {
+		printk("%s** Unexpected header CLASS %d TYPE %d, aborting\n",
+		       err_print_prefix,
+		       header->class, header->type);
+		return NULL;
+	}
+
+	switch(header->type) {
+	case EL_TYPE__HEADER__SYSTEM_ERROR_FRAME:
+		name = "SYSTEM ERROR";
+		length = header->by_type.sys_err.frame_length;
+		packet_count = 
+			header->by_type.sys_err.frame_packet_count;
+		timestamp.as_int = 0;
+		break;
+	case EL_TYPE__HEADER__SYSTEM_EVENT_FRAME:
+		name = "SYSTEM EVENT";
+		length = header->by_type.sys_event.frame_length;
+		packet_count = 
+			header->by_type.sys_event.frame_packet_count;
+		timestamp = header->by_type.sys_event.timestamp;
+		break;
+	case EL_TYPE__HEADER__HALT_FRAME:
+		name = "ERROR HALT";
+		length = header->by_type.err_halt.frame_length;
+		packet_count = 
+			header->by_type.err_halt.frame_packet_count;
+		timestamp = header->by_type.err_halt.timestamp;
+		break;
+	case EL_TYPE__HEADER__LOGOUT_FRAME:
+		name = "LOGOUT FRAME";
+		length = header->by_type.logout_header.frame_length;
+		packet_count = 1;
+		timestamp.as_int = 0;
+		break;
+	default: /* Unknown */
+		printk("%s** Unknown header - CLASS %d TYPE %d, aborting\n",
+		       err_print_prefix,
+		       header->class, header->type);
+		return NULL;		
+	}
+
+	printk("%s*** %s:\n"
+	         "  CLASS %d, TYPE %d\n", 
+	       err_print_prefix,
+	       name,
+	       header->class, header->type);
+	el_print_timestamp(&timestamp);
+	
+	/*
+	 * Process the subpackets
+	 */
+	el_process_subpackets(header, packet_count);
+
+	/* return the next header */
+	header = (struct el_subpacket *)
+		((unsigned long)header + header->length + length);
+	return header;
+}
+
+static struct el_subpacket *
+el_process_subpacket_reg(struct el_subpacket *header)
+{
+	struct el_subpacket *next = NULL;
+	struct el_subpacket_handler *h = subpacket_handler_list;
+
+	for (; h && h->class != header->class; h = h->next);
+	if (h) next = h->handler(header);
+
+	return next;
+}
+
+void
+el_print_timestamp(union el_timestamp *timestamp)
+{
+	if (timestamp->as_int)
+		printk("%s  TIMESTAMP: %d/%d/%02d %d:%02d:%0d\n", 
+		       err_print_prefix,
+		       timestamp->b.month, timestamp->b.day,
+		       timestamp->b.year, timestamp->b.hour,
+		       timestamp->b.minute, timestamp->b.second);
+}
+
+void
+el_process_subpackets(struct el_subpacket *header, int packet_count)
+{
+	struct el_subpacket *subpacket;
+	int i;
+
+	subpacket = (struct el_subpacket *)
+		((unsigned long)header + header->length);
+
+	for (i = 0; subpacket && i < packet_count; i++) {
+		printk("%sPROCESSING SUBPACKET %d\n", err_print_prefix, i);
+		subpacket = el_process_subpacket(subpacket);
+	}
+}
+
+struct el_subpacket *
+el_process_subpacket(struct el_subpacket *header)
+{
+	struct el_subpacket *next = NULL;
+
+	switch(header->class) {
+	case EL_CLASS__TERMINATION:
+		/* Termination packet, there are no more */
+		break;
+	case EL_CLASS__HEADER: 
+		next = el_process_header_subpacket(header);
+		break;
+	default:
+		if (NULL == (next = el_process_subpacket_reg(header))) {
+			printk("%s** Unexpected header CLASS %d TYPE %d"
+			       " -- aborting.\n",
+			       err_print_prefix,
+			       header->class, header->type);
+		}
+		break;
+	}
+
+	return next;
+}
+
+void 
+el_annotate_subpacket(struct el_subpacket *header)
+{
+	struct el_subpacket_annotation *a;
+	char **annotation = NULL;
+
+	for (a = subpacket_annotation_list; a; a = a->next) {
+		if (a->class == header->class &&
+		    a->type == header->type &&
+		    a->revision == header->revision) {
+			/*
+			 * We found the annotation
+			 */
+			annotation = a->annotation;
+			printk("%s  %s\n", err_print_prefix, a->description);
+			break;
+		}
+	}
+
+	mchk_dump_mem(header, header->length, annotation);
+}
+
+static void __init
+cdl_process_console_data_log(int cpu, struct percpu_struct *pcpu)
+{
+	struct el_subpacket *header = (struct el_subpacket *)
+		(IDENT_ADDR | pcpu->console_data_log_pa);
+	int err;
+
+	printk("%s******* CONSOLE DATA LOG FOR CPU %d. *******\n"
+	         "*** Error(s) were logged on a previous boot\n",
+	       err_print_prefix, cpu);
+	
+	for (err = 0; header && (header->class != EL_CLASS__TERMINATION); err++)
+		header = el_process_subpacket(header);
+
+	/* let the console know it's ok to clear the error(s) at restart */
+	pcpu->console_data_log_pa = 0;
+
+	printk("%s*** %d total error(s) logged\n"
+	         "**** END OF CONSOLE DATA LOG FOR CPU %d ****\n", 
+	       err_print_prefix, err, cpu);
+}
+
+void __init
+cdl_check_console_data_log(void)
+{
+	struct percpu_struct *pcpu;
+	unsigned long cpu;
+
+	for (cpu = 0; cpu < hwrpb->nr_processors; cpu++) {
+		pcpu = (struct percpu_struct *)
+			((unsigned long)hwrpb + hwrpb->processor_offset 
+			 + cpu * hwrpb->processor_size);
+		if (pcpu->console_data_log_pa)
+			cdl_process_console_data_log(cpu, pcpu);
+	}
+
+}
+
+int __init
+cdl_register_subpacket_annotation(struct el_subpacket_annotation *new)
+{
+	struct el_subpacket_annotation *a = subpacket_annotation_list;
+
+	if (a == NULL) subpacket_annotation_list = new;
+	else {
+		for (; a->next != NULL; a = a->next) {
+			if ((a->class == new->class && a->type == new->type) ||
+			    a == new) {
+				printk("Attempted to re-register "
+				       "subpacket annotation\n");
+				return -EINVAL;
+			}
+		}
+		a->next = new;
+	}
+	new->next = NULL;
+
+	return 0;
+}
+
+int __init
+cdl_register_subpacket_handler(struct el_subpacket_handler *new)
+{
+	struct el_subpacket_handler *h = subpacket_handler_list;
+
+	if (h == NULL) subpacket_handler_list = new;
+	else {
+		for (; h->next != NULL; h = h->next) {
+			if (h->class == new->class || h == new) {
+				printk("Attempted to re-register "
+				       "subpacket handler\n");
+				return -EINVAL;
+			}
+		}
+		h->next = new;
+	}
+	new->next = NULL;
+
+	return 0;
+}
+