1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * This file is part of the coreboot project. 4 * 5 * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. 6 */ 7 8 #include <common.h> 9 #include <asm/arch/timestamp.h> 10 #include <asm/arch/sysinfo.h> 11 #include <linux/compiler.h> 12 13 struct timestamp_entry { 14 uint32_t entry_id; 15 uint64_t entry_stamp; 16 } __packed; 17 18 struct timestamp_table { 19 uint64_t base_time; 20 uint32_t max_entries; 21 uint32_t num_entries; 22 struct timestamp_entry entries[0]; /* Variable number of entries */ 23 } __packed; 24 25 static struct timestamp_table *ts_table __attribute__((section(".data"))); 26 timestamp_init(void)27void timestamp_init(void) 28 { 29 timestamp_add_now(TS_U_BOOT_INITTED); 30 } 31 timestamp_add(enum timestamp_id id,uint64_t ts_time)32void timestamp_add(enum timestamp_id id, uint64_t ts_time) 33 { 34 struct timestamp_entry *tse; 35 36 if (!ts_table || (ts_table->num_entries == ts_table->max_entries)) 37 return; 38 39 tse = &ts_table->entries[ts_table->num_entries++]; 40 tse->entry_id = id; 41 tse->entry_stamp = ts_time - ts_table->base_time; 42 } 43 timestamp_add_now(enum timestamp_id id)44void timestamp_add_now(enum timestamp_id id) 45 { 46 timestamp_add(id, rdtsc()); 47 } 48 timestamp_add_to_bootstage(void)49int timestamp_add_to_bootstage(void) 50 { 51 uint i; 52 53 if (!ts_table) 54 return -1; 55 56 for (i = 0; i < ts_table->num_entries; i++) { 57 struct timestamp_entry *tse = &ts_table->entries[i]; 58 const char *name = NULL; 59 60 switch (tse->entry_id) { 61 case TS_START_ROMSTAGE: 62 name = "start-romstage"; 63 break; 64 case TS_BEFORE_INITRAM: 65 name = "before-initram"; 66 break; 67 case TS_DEVICE_INITIALIZE: 68 name = "device-initialize"; 69 break; 70 case TS_DEVICE_DONE: 71 name = "device-done"; 72 break; 73 case TS_SELFBOOT_JUMP: 74 name = "selfboot-jump"; 75 break; 76 } 77 if (name) { 78 bootstage_add_record(0, name, BOOTSTAGEF_ALLOC, 79 tse->entry_stamp / 80 get_tbclk_mhz()); 81 } 82 } 83 84 return 0; 85 } 86