Angel Pons | 3ef916f | 2020-04-02 23:49:13 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Aaron Durbin | 06ece7d | 2014-02-14 00:30:04 -0600 | [diff] [blame] | 2 | |
| 3 | |
| 4 | #include <stddef.h> |
| 5 | #include <stdint.h> |
Furquan Shaikh | efb546d | 2014-11-08 17:34:27 -0800 | [diff] [blame] | 6 | #include <boot/coreboot_tables.h> |
Aaron Durbin | 06ece7d | 2014-02-14 00:30:04 -0600 | [diff] [blame] | 7 | #include <bootstate.h> |
| 8 | #include <console/console.h> |
| 9 | #include <cbmem.h> |
| 10 | #include <device/device.h> |
| 11 | #include "chromeos.h" |
| 12 | |
Julius Werner | cd49cce | 2019-03-05 16:53:33 -0800 | [diff] [blame] | 13 | #if CONFIG(HAVE_ACPI_TABLES) |
Furquan Shaikh | aed887f | 2014-11-08 17:32:38 -0800 | [diff] [blame] | 14 | |
Aaron Durbin | 06ece7d | 2014-02-14 00:30:04 -0600 | [diff] [blame] | 15 | static void set_ramoops(chromeos_acpi_t *chromeos, void *ram_oops, size_t size) |
| 16 | { |
| 17 | if (chromeos == NULL) { |
| 18 | printk(BIOS_DEBUG, "chromeos gnvs is NULL. ramoops not set.\n"); |
| 19 | return; |
| 20 | } |
| 21 | |
Julius Werner | 540a980 | 2019-12-09 13:03:29 -0800 | [diff] [blame] | 22 | printk(BIOS_DEBUG, "Ramoops buffer: 0x%zx@%p.\n", size, ram_oops); |
Aaron Durbin | 06ece7d | 2014-02-14 00:30:04 -0600 | [diff] [blame] | 23 | chromeos->ramoops_base = (uintptr_t)ram_oops; |
| 24 | chromeos->ramoops_len = size; |
| 25 | } |
| 26 | |
Kyösti Mälkki | fce36e4 | 2021-02-10 19:31:26 +0200 | [diff] [blame^] | 27 | void chromeos_ram_oops_init(chromeos_acpi_t *chromeos) |
Aaron Durbin | 06ece7d | 2014-02-14 00:30:04 -0600 | [diff] [blame] | 28 | { |
| 29 | const size_t size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE; |
| 30 | void *ram_oops; |
| 31 | |
Aaron Durbin | 06ece7d | 2014-02-14 00:30:04 -0600 | [diff] [blame] | 32 | ram_oops = cbmem_add(CBMEM_ID_RAM_OOPS, size); |
| 33 | |
| 34 | set_ramoops(chromeos, ram_oops, size); |
| 35 | } |
| 36 | |
Kyösti Mälkki | fce36e4 | 2021-02-10 19:31:26 +0200 | [diff] [blame^] | 37 | #else |
Furquan Shaikh | efb546d | 2014-11-08 17:34:27 -0800 | [diff] [blame] | 38 | |
| 39 | static void ramoops_alloc(void *arg) |
| 40 | { |
| 41 | const size_t size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE; |
| 42 | |
| 43 | if (size == 0) |
| 44 | return; |
| 45 | |
| 46 | if (cbmem_add(CBMEM_ID_RAM_OOPS, size) == NULL) |
| 47 | printk(BIOS_ERR, "Could not allocate RAMOOPS buffer\n"); |
| 48 | } |
| 49 | |
| 50 | BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, ramoops_alloc, NULL); |
| 51 | |
| 52 | #endif |
| 53 | |
| 54 | void lb_ramoops(struct lb_header *header) |
| 55 | { |
| 56 | void *buffer = cbmem_find(CBMEM_ID_RAM_OOPS); |
| 57 | |
| 58 | if (buffer == NULL) |
| 59 | return; |
| 60 | |
| 61 | struct lb_range *ramoops; |
| 62 | ramoops = (struct lb_range *)lb_new_record(header); |
| 63 | ramoops->tag = LB_TAG_RAM_OOPS; |
| 64 | ramoops->size = sizeof(*ramoops); |
| 65 | ramoops->range_start = (uintptr_t)buffer; |
| 66 | ramoops->range_size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE; |
| 67 | } |