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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*/
#include <common.h>
#include <asm/arch/timestamp.h>
#include <asm/arch/sysinfo.h>
#include <linux/compiler.h>
struct timestamp_entry {
uint32_t entry_id;
uint64_t entry_stamp;
} __packed;
struct timestamp_table {
uint64_t base_time;
uint32_t max_entries;
uint32_t num_entries;
struct timestamp_entry entries[0]; /* Variable number of entries */
} __packed;
static struct timestamp_table *ts_table __attribute__((section(".data")));
void timestamp_init(void)
{
ts_table = lib_sysinfo.tstamp_table;
timer_set_tsc_base(ts_table->base_time);
timestamp_add_now(TS_U_BOOT_INITTED);
}
void timestamp_add(enum timestamp_id id, uint64_t ts_time)
{
struct timestamp_entry *tse;
if (!ts_table || (ts_table->num_entries == ts_table->max_entries))
return;
tse = &ts_table->entries[ts_table->num_entries++];
tse->entry_id = id;
tse->entry_stamp = ts_time - ts_table->base_time;
}
void timestamp_add_now(enum timestamp_id id)
{
timestamp_add(id, rdtsc());
}
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