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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/*
* Platform Error Log (PEL) generation
*
* Copyright 2014-2016 IBM Corp
*/
#include <string.h>
#include <errorlog.h>
#include <device.h>
#include <fsp.h>
#include <pel.h>
#include <rtc.h>
/* Create MTMS section for sapphire log */
static void create_mtms_section(struct errorlog *elog_data,
char *pel_buffer, int *pel_offset)
{
const struct dt_property *p;
struct opal_mtms_section *mtms = (struct opal_mtms_section *)
(pel_buffer + *pel_offset);
mtms->v6header.id = cpu_to_be16(ELOG_SID_MACHINE_TYPE);
mtms->v6header.length = cpu_to_be16(MTMS_SECTION_SIZE);
mtms->v6header.version = OPAL_EXT_HRD_VER;
mtms->v6header.subtype = 0;
mtms->v6header.component_id = cpu_to_be16(elog_data->component_id);
memset(mtms->model, 0x00, sizeof(mtms->model));
memcpy(mtms->model, dt_prop_get(dt_root, "model"), OPAL_SYS_MODEL_LEN);
memset(mtms->serial_no, 0x00, sizeof(mtms->serial_no));
p = dt_find_property(dt_root, "system-id");
if (p)
memcpy(mtms->serial_no, p->prop, OPAL_SYS_SERIAL_LEN);
else
memset(mtms->serial_no, 0, OPAL_SYS_SERIAL_LEN);
*pel_offset += MTMS_SECTION_SIZE;
}
/* Create extended header section */
static void create_extended_header_section(struct errorlog *elog_data,
char *pel_buffer, int *pel_offset)
{
const char *opalmodel = NULL;
const struct dt_property *p;
uint64_t extd_time;
uint32_t extd_date;
struct opal_extended_header_section *extdhdr =
(struct opal_extended_header_section *)
(pel_buffer + *pel_offset);
extdhdr->v6header.id = cpu_to_be16(ELOG_SID_EXTENDED_HEADER);
extdhdr->v6header.length = cpu_to_be16(EXTENDED_HEADER_SECTION_SIZE);
extdhdr->v6header.version = OPAL_EXT_HRD_VER;
extdhdr->v6header.subtype = 0;
extdhdr->v6header.component_id = cpu_to_be16(elog_data->component_id);
memset(extdhdr->model, 0x00, sizeof(extdhdr->model));
opalmodel = dt_prop_get(dt_root, "model");
memcpy(extdhdr->model, opalmodel, OPAL_SYS_MODEL_LEN);
memset(extdhdr->serial_no, 0x00, sizeof(extdhdr->serial_no));
p = dt_find_property(dt_root, "system-id");
if (p)
memcpy(extdhdr->serial_no, p->prop, OPAL_SYS_SERIAL_LEN);
else
memset(extdhdr->serial_no, 0, OPAL_SYS_SERIAL_LEN);
memset(extdhdr->opal_release_version, 0x00,
sizeof(extdhdr->opal_release_version));
memset(extdhdr->opal_subsys_version, 0x00,
sizeof(extdhdr->opal_subsys_version));
rtc_cache_get_datetime(&extd_date, &extd_time);
extdhdr->extended_header_date = cpu_to_be32(extd_date);
extdhdr->extended_header_time = cpu_to_be32(extd_time >> 32);
extdhdr->opal_symid_len = 0;
*pel_offset += EXTENDED_HEADER_SECTION_SIZE;
}
/* set src type */
static void settype(struct opal_src_section *src, uint8_t src_type)
{
char type[4];
snprintf(type, sizeof(type), "%02X", src_type);
memcpy(src->srcstring, type, 2);
}
/* set SRC subsystem type */
static void setsubsys(struct opal_src_section *src, uint8_t src_subsys)
{
char subsys[4];
snprintf(subsys, sizeof(subsys), "%02X", src_subsys);
memcpy(src->srcstring+2, subsys, 2);
}
/* Ser reason code of SRC */
static void setrefcode(struct opal_src_section *src, uint16_t src_refcode)
{
char refcode[8];
snprintf(refcode, sizeof(refcode), "%04X", src_refcode);
memcpy(src->srcstring+4, refcode, 4);
}
/* Create SRC section of OPAL log */
static void create_src_section(struct errorlog *elog_data,
char *pel_buffer, int *pel_offset)
{
struct opal_src_section *src = (struct opal_src_section *)
(pel_buffer + *pel_offset);
src->v6header.id = cpu_to_be16(ELOG_SID_PRIMARY_SRC);
src->v6header.length = cpu_to_be16(SRC_SECTION_SIZE);
src->v6header.version = OPAL_ELOG_VERSION;
src->v6header.subtype = OPAL_ELOG_SST;
src->v6header.component_id = cpu_to_be16(elog_data->component_id);
src->version = OPAL_SRC_SEC_VER;
src->flags = 0;
src->wordcount = OPAL_SRC_MAX_WORD_COUNT;
src->srclength = cpu_to_be16(SRC_LENGTH);
settype(src, OPAL_SRC_TYPE_ERROR);
setsubsys(src, OPAL_FAILING_SUBSYSTEM);
setrefcode(src, elog_data->reason_code);
memset(src->hexwords, 0 , (8 * 4));
src->hexwords[0] = cpu_to_be32(OPAL_SRC_FORMAT);
src->hexwords[4] = cpu_to_be32(elog_data->additional_info[0]);
src->hexwords[5] = cpu_to_be32(elog_data->additional_info[1]);
src->hexwords[6] = cpu_to_be32(elog_data->additional_info[2]);
src->hexwords[7] = cpu_to_be32(elog_data->additional_info[3]);
*pel_offset += SRC_SECTION_SIZE;
}
/* Create user header section */
static void create_user_header_section(struct errorlog *elog_data,
char *pel_buffer, int *pel_offset)
{
struct opal_user_header_section *usrhdr =
(struct opal_user_header_section *)
(pel_buffer + *pel_offset);
usrhdr->v6header.id = cpu_to_be16(ELOG_SID_USER_HEADER);
usrhdr->v6header.length = cpu_to_be16(USER_HEADER_SECTION_SIZE);
usrhdr->v6header.version = OPAL_ELOG_VERSION;
usrhdr->v6header.subtype = OPAL_ELOG_SST;
usrhdr->v6header.component_id = cpu_to_be16(elog_data->component_id);
usrhdr->subsystem_id = elog_data->subsystem_id;
usrhdr->event_scope = 0;
usrhdr->event_severity = elog_data->event_severity;
usrhdr->event_type = elog_data->event_subtype;
if (elog_data->elog_origin == ORG_SAPPHIRE)
usrhdr->action_flags = cpu_to_be16(ERRL_ACTION_REPORT);
else
usrhdr->action_flags = cpu_to_be16(ERRL_ACTION_NONE);
*pel_offset += USER_HEADER_SECTION_SIZE;
}
/* Create private header section */
static void create_private_header_section(struct errorlog *elog_data,
char *pel_buffer, int *pel_offset)
{
uint64_t ctime;
uint32_t cdate;
struct opal_private_header_section *privhdr =
(struct opal_private_header_section *)
pel_buffer;
privhdr->v6header.id = cpu_to_be16(ELOG_SID_PRIVATE_HEADER);
privhdr->v6header.length = cpu_to_be16(PRIVATE_HEADER_SECTION_SIZE);
privhdr->v6header.version = OPAL_ELOG_VERSION;
privhdr->v6header.subtype = OPAL_ELOG_SST;
privhdr->v6header.component_id = cpu_to_be16(elog_data->component_id);
privhdr->plid = cpu_to_be32(elog_data->plid);
rtc_cache_get_datetime(&cdate, &ctime);
privhdr->create_date = cpu_to_be32(cdate);
privhdr->create_time = cpu_to_be32(ctime >> 32);
privhdr->section_count = 5;
privhdr->creator_subid_hi = 0x00;
privhdr->creator_subid_lo = 0x00;
if (elog_data->elog_origin == ORG_SAPPHIRE)
privhdr->creator_id = OPAL_CID_SAPPHIRE;
else
privhdr->creator_id = OPAL_CID_POWERNV;
privhdr->log_entry_id = cpu_to_be32(elog_data->plid); /*entry id is updated by FSP*/
*pel_offset += PRIVATE_HEADER_SECTION_SIZE;
}
static void create_user_defined_section(struct errorlog *elog_data,
char *pel_buffer, int *pel_offset)
{
char *dump = (char *)pel_buffer + *pel_offset;
char *opal_buf = (char *)elog_data->user_data_dump;
struct opal_user_section *usrhdr;
struct elog_user_data_section *opal_usr_data;
struct opal_private_header_section *privhdr =
(struct opal_private_header_section *)pel_buffer;
int i;
for (i = 0; i < elog_data->user_section_count; i++) {
usrhdr = (struct opal_user_section *)dump;
opal_usr_data = (struct elog_user_data_section *)opal_buf;
usrhdr->v6header.id = cpu_to_be16(ELOG_SID_USER_DEFINED);
usrhdr->v6header.length = cpu_to_be16(
sizeof(struct opal_v6_header) +
be16_to_cpu(opal_usr_data->size));
usrhdr->v6header.version = OPAL_ELOG_VERSION;
usrhdr->v6header.subtype = OPAL_ELOG_SST;
usrhdr->v6header.component_id = cpu_to_be16(elog_data->component_id);
memcpy(usrhdr->dump, opal_buf, be16_to_cpu(opal_usr_data->size));
*pel_offset += be16_to_cpu(usrhdr->v6header.length);
dump += be16_to_cpu(usrhdr->v6header.length);
opal_buf += be16_to_cpu(opal_usr_data->size);
privhdr->section_count++;
}
}
static size_t pel_user_section_size(struct errorlog *elog_data)
{
int i;
size_t total = 0;
char *opal_buf = (char *)elog_data->user_data_dump;
struct elog_user_data_section *opal_usr_data;
for (i = 0; i < elog_data->user_section_count; i++) {
u16 s;
opal_usr_data = (struct elog_user_data_section *)opal_buf;
s = be16_to_cpu(opal_usr_data->size);
total += sizeof(struct opal_v6_header) + s;
opal_buf += s;
}
return total;
}
size_t pel_size(struct errorlog *elog_data)
{
return PEL_MIN_SIZE + pel_user_section_size(elog_data);
}
/* Converts an OPAL errorlog into a PEL formatted log */
int create_pel_log(struct errorlog *elog_data, char *pel_buffer,
size_t pel_buffer_size)
{
int pel_offset = 0;
if (pel_buffer_size < pel_size(elog_data)) {
prerror("PEL buffer too small to create record\n");
return 0;
}
memset(pel_buffer, 0, pel_buffer_size);
create_private_header_section(elog_data, pel_buffer, &pel_offset);
create_user_header_section(elog_data, pel_buffer, &pel_offset);
create_src_section(elog_data, pel_buffer, &pel_offset);
create_extended_header_section(elog_data, pel_buffer, &pel_offset);
create_mtms_section(elog_data, pel_buffer, &pel_offset);
if (elog_data->user_section_count)
create_user_defined_section(elog_data, pel_buffer, &pel_offset);
return pel_offset;
}
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