Raul E Rangel | 899be1b | 2021-02-05 15:50:20 -0700 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
Felix Held | 6e2f5f2 | 2021-02-08 18:16:07 +0100 | [diff] [blame] | 3 | #include <amdblocks/memmap.h> |
Felix Held | a90854d | 2021-02-10 04:05:27 +0100 | [diff] [blame] | 4 | #include <amdblocks/smm.h> |
Felix Held | 1a39aa0 | 2021-02-08 20:02:58 +0100 | [diff] [blame^] | 5 | #include <arch/bert_storage.h> |
Raul E Rangel | 899be1b | 2021-02-05 15:50:20 -0700 | [diff] [blame] | 6 | #include <console/console.h> |
| 7 | #include <cbmem.h> |
Felix Held | 6e2f5f2 | 2021-02-08 18:16:07 +0100 | [diff] [blame] | 8 | #include <cpu/amd/msr.h> |
| 9 | #include <cpu/x86/smm.h> |
| 10 | #include <fsp/util.h> |
| 11 | #include <FspGuids.h> |
| 12 | #include <memrange.h> |
| 13 | #include <stdint.h> |
Raul E Rangel | 899be1b | 2021-02-05 15:50:20 -0700 | [diff] [blame] | 14 | |
| 15 | void memmap_stash_early_dram_usage(void) |
| 16 | { |
| 17 | struct memmap_early_dram *e; |
| 18 | |
| 19 | e = cbmem_add(CBMEM_ID_CB_EARLY_DRAM, sizeof(*e)); |
| 20 | |
| 21 | if (!e) |
| 22 | die("ERROR: Failed to stash early dram usage!\n"); |
| 23 | |
| 24 | e->base = (uint32_t)(uintptr_t)_early_reserved_dram; |
| 25 | e->size = REGION_SIZE(early_reserved_dram); |
| 26 | } |
| 27 | |
| 28 | const struct memmap_early_dram *memmap_get_early_dram_usage(void) |
| 29 | { |
| 30 | struct memmap_early_dram *e = cbmem_find(CBMEM_ID_CB_EARLY_DRAM); |
| 31 | |
| 32 | if (!e) |
| 33 | die("ERROR: Failed to read early dram usage!\n"); |
| 34 | |
| 35 | return e; |
| 36 | } |
Felix Held | 6e2f5f2 | 2021-02-08 18:16:07 +0100 | [diff] [blame] | 37 | |
Felix Held | 6e2f5f2 | 2021-02-08 18:16:07 +0100 | [diff] [blame] | 38 | void smm_region(uintptr_t *start, size_t *size) |
| 39 | { |
| 40 | static int once; |
| 41 | struct range_entry tseg; |
| 42 | int status; |
| 43 | |
| 44 | *start = 0; |
| 45 | *size = 0; |
| 46 | |
| 47 | status = fsp_find_range_hob(&tseg, AMD_FSP_TSEG_HOB_GUID.b); |
| 48 | |
| 49 | if (status < 0) { |
| 50 | printk(BIOS_ERR, "Error: unable to find TSEG HOB\n"); |
| 51 | return; |
| 52 | } |
| 53 | |
| 54 | *start = (uintptr_t)range_entry_base(&tseg); |
| 55 | *size = range_entry_size(&tseg); |
| 56 | |
| 57 | if (!once) { |
| 58 | clear_tvalid(); |
| 59 | once = 1; |
| 60 | } |
| 61 | } |
Felix Held | 1a39aa0 | 2021-02-08 20:02:58 +0100 | [diff] [blame^] | 62 | |
| 63 | void bert_reserved_region(void **start, size_t *size) |
| 64 | { |
| 65 | struct range_entry bert; |
| 66 | int status; |
| 67 | |
| 68 | *start = NULL; |
| 69 | *size = 0; |
| 70 | |
| 71 | status = fsp_find_range_hob(&bert, AMD_FSP_BERT_HOB_GUID.b); |
| 72 | |
| 73 | if (status < 0) { |
| 74 | printk(BIOS_ERR, "Error: unable to find BERT HOB\n"); |
| 75 | return; |
| 76 | } |
| 77 | |
| 78 | *start = (void *)(uintptr_t)range_entry_base(&bert); |
| 79 | *size = range_entry_size(&bert); |
| 80 | } |