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u-boot/arch/x86/include/asm/arch-coreboot/timestamp.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
x86: Enable coreboot timestamp facility support in u-boot. This change turns on the code which allows u-boot to add timestamps to the timestamp table created by coreboot. Since u-boot does not use the tsc_t like structure to represent HW counter readings, this structure is being replaced by 64 bit integer. The timestamp_init() function is now initializing the base timer value used by u-boot to calculate the HW counter increments. Timestamp facility is initialized as soon as the timestamp table pointer is found in the coreboot table. The u-boot generated timer events' ID will start at 1000 to clearly separate u-boot events from coreboot events in the timer trace. Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-10-23 18:04:33 +00:00
/*
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
x86: Correct wording of coreboot source code Some files are taken or modified from coreboot, but the files are no-longer part of the coreboot project. Fix the wording in a few places. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
2020-04-08 22:57:27 +00:00
*
* Taken from the coreboot version
x86: Enable coreboot timestamp facility support in u-boot. This change turns on the code which allows u-boot to add timestamps to the timestamp table created by coreboot. Since u-boot does not use the tsc_t like structure to represent HW counter readings, this structure is being replaced by 64 bit integer. The timestamp_init() function is now initializing the base timer value used by u-boot to calculate the HW counter increments. Timestamp facility is initialized as soon as the timestamp table pointer is found in the coreboot table. The u-boot generated timer events' ID will start at 1000 to clearly separate u-boot events from coreboot events in the timer trace. Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-10-23 18:04:33 +00:00
*/
#ifndef __COREBOOT_TIMESTAMP_H__
#define __COREBOOT_TIMESTAMP_H__
x86: Move coreboot timestamp info into coreboot_tables.h This all relates to the sysinfo structure provided by coreboot. Put the timestamp definitions into the same file as the others. Tidy up a few comments at the same time. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-15 05:00:19 +00:00
#include <asm/cb_sysinfo.h>
x86: Enable coreboot timestamp facility support in u-boot. This change turns on the code which allows u-boot to add timestamps to the timestamp table created by coreboot. Since u-boot does not use the tsc_t like structure to represent HW counter readings, this structure is being replaced by 64 bit integer. The timestamp_init() function is now initializing the base timer value used by u-boot to calculate the HW counter increments. Timestamp facility is initialized as soon as the timestamp table pointer is found in the coreboot table. The u-boot generated timer events' ID will start at 1000 to clearly separate u-boot events from coreboot events in the timer trace. Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-10-23 18:04:33 +00:00
void timestamp_init(void);
void timestamp_add(enum timestamp_id id, uint64_t ts_time);
void timestamp_add_now(enum timestamp_id id);
x86: Support adding coreboot timestanps to bootstage Coreboot provides a lot of useful timing information. Provide a facility to add this to bootstage on start-up. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-04-17 16:13:47 +00:00
/**
* timestamp_add_to_bootstage - Add important coreboot timestamps to bootstage
*
* @return 0 if ok, -1 if no timestamps were found
*/
int timestamp_add_to_bootstage(void);
x86: Enable coreboot timestamp facility support in u-boot. This change turns on the code which allows u-boot to add timestamps to the timestamp table created by coreboot. Since u-boot does not use the tsc_t like structure to represent HW counter readings, this structure is being replaced by 64 bit integer. The timestamp_init() function is now initializing the base timer value used by u-boot to calculate the HW counter increments. Timestamp facility is initialized as soon as the timestamp table pointer is found in the coreboot table. The u-boot generated timer events' ID will start at 1000 to clearly separate u-boot events from coreboot events in the timer trace. Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-10-23 18:04:33 +00:00
#endif
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