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/* SPDX-License-Identifier: GPL-2.0-only */
#include <stddef.h>
#include <stdint.h>
#include <boot/coreboot_tables.h>
#include <bootstate.h>
#include <console/console.h>
#include <cbmem.h>
#include <device/device.h>
#include "chromeos.h"
#if CONFIG(HAVE_ACPI_TABLES)
static void set_ramoops(chromeos_acpi_t *chromeos, void *ram_oops, size_t size)
{
if (chromeos == NULL) {
printk(BIOS_DEBUG, "chromeos gnvs is NULL. ramoops not set.\n");
return;
}
printk(BIOS_DEBUG, "Ramoops buffer: 0x%zx@%p.\n", size, ram_oops);
chromeos->ramoops_base = (uintptr_t)ram_oops;
chromeos->ramoops_len = size;
}
void chromeos_ram_oops_init(chromeos_acpi_t *chromeos)
{
const size_t size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE;
void *ram_oops;
ram_oops = cbmem_add(CBMEM_ID_RAM_OOPS, size);
set_ramoops(chromeos, ram_oops, size);
}
#else
static void ramoops_alloc(void *arg)
{
const size_t size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE;
if (size == 0)
return;
if (cbmem_add(CBMEM_ID_RAM_OOPS, size) == NULL)
printk(BIOS_ERR, "Could not allocate RAMOOPS buffer\n");
}
BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, ramoops_alloc, NULL);
#endif
void lb_ramoops(struct lb_header *header)
{
void *buffer = cbmem_find(CBMEM_ID_RAM_OOPS);
if (buffer == NULL)
return;
struct lb_range *ramoops;
ramoops = (struct lb_range *)lb_new_record(header);
ramoops->tag = LB_TAG_RAM_OOPS;
ramoops->size = sizeof(*ramoops);
ramoops->range_start = (uintptr_t)buffer;
ramoops->range_size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE;
}
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