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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <soc/acpi.h>
#include <acpi/acpi_gnvs.h>
#include <cbmem.h>
#include <console/console.h>
#include <soc/hest.h>
#include <intelblocks/nvs.h>
static u64 hest_get_elog_addr(void)
{
/* The elog address comes from reserved memory */
struct global_nvs *gnvs;
gnvs = acpi_get_gnvs();
if (!gnvs) {
printk(BIOS_ERR, "Unable to get gnvs\n");
return 0;
}
/* Runtime logging address */
printk(BIOS_DEBUG, "\t status blk start addr = %llx\n", gnvs->hest_log_addr);
printk(BIOS_DEBUG, "\t size = %x\n", CONFIG_ERROR_LOG_BUFFER_SIZE);
return gnvs->hest_log_addr;
}
static u32 acpi_hest_add_ghes(void *current)
{
ghes_record_t *rec = (ghes_record_t *)current;
u32 size = sizeof(ghes_record_t);
/* Fill GHES error source descriptor */
memset(rec, 0, size);
rec->esd.type = HEST_GHES_DESC_TYPE;
rec->esd.source_id = 0; /* 0 for MCE check exception source */
rec->esd.enabled = 1;
rec->esd.related_src_id = 0xffff;
rec->esd.prealloc_erecords = 1;
rec->esd.max_section_per_record = 0xf;
rec->max_raw_data_length = GHES_MAX_RAW_DATA_LENGTH;
/* Add error_status_address */
rec->sts_addr.space_id = 0;
rec->sts_addr.bit_width = 0x40;
rec->sts_addr.bit_offset = 0;
rec->sts_addr.access_size = QWORD_ACCESS;
/* Add notification structure */
rec->notify.type = NOTIFY_TYPE_SCI;
rec->notify.length = sizeof(acpi_hest_hen_t);
rec->err_sts_blk_len = GHEST_ERROR_STATUS_BLOCK_LENGTH;
/* error status block entries start address */
if (CONFIG(SOC_ACPI_HEST))
rec->sts_addr.addr = hest_get_elog_addr();
return size;
}
static unsigned long acpi_fill_hest(acpi_hest_t *hest)
{
acpi_header_t *header = &(hest->header);
void *current;
current = (void *)(hest);
void *next = current;
next = hest + 1;
next += acpi_hest_add_ghes(next);
hest->error_source_count += 1;
header->length = next - current;
return header->length;
}
unsigned long hest_create(unsigned long current, struct acpi_rsdp *rsdp)
{
struct global_nvs *gnvs;
acpi_hest_t *hest;
/* Reserve memory for Enhanced error logging */
void *mem = cbmem_add(CBMEM_ID_ACPI_HEST, CONFIG_ERROR_LOG_BUFFER_SIZE);
if (!mem) {
printk(BIOS_ERR, "Unable to allocate HEST memory\n");
return current;
}
printk(BIOS_DEBUG, "HEST memory created: %p\n", mem);
gnvs = acpi_get_gnvs();
if (!gnvs) {
printk(BIOS_ERR, "Unable to get gnvs\n");
return current;
}
gnvs->hest_log_addr = (uintptr_t)mem;
printk(BIOS_DEBUG, "elog_addr: %llx, size:%x\n", gnvs->hest_log_addr,
CONFIG_ERROR_LOG_BUFFER_SIZE);
current = ALIGN_UP(current, 8);
hest = (acpi_hest_t *)current;
acpi_write_hest(hest, acpi_fill_hest);
acpi_add_table(rsdp, (void *)current);
current += hest->header.length;
return current;
}
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