f3f36faf35
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I89b10076e0f4a4b3acd59160fb7abe349b228321 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39611 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*
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* This file is part of the coreboot project.
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __TIMESTAMP_H__
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#define __TIMESTAMP_H__
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#include <commonlib/timestamp_serialized.h>
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#if CONFIG(COLLECT_TIMESTAMPS)
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/*
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* timestamp_init() needs to be called once in *one* of the ENV_ROMSTAGE_OR_BEFORE
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* stages (bootblock, romstage, verstage, etc). It's up to the chipset/arch
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* to make the call in the earliest stage, otherwise some timestamps will be lost.
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* For x86 ENV_ROMSTAGE call must be made before CAR is torn down.
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*/
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void timestamp_init(uint64_t base);
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/*
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* Add a new timestamp. For ENV_ROMSTAGE_OR_BEFORE, this timestamp will be stored
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* inside REGION(timestamp) before cbmem comes online. For later stages, timestamps
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* added before cbmem_[recovery|initialize] calls will be lost.
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*/
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void timestamp_add(enum timestamp_id id, uint64_t ts_time);
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/* Calls timestamp_add with current timestamp. */
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void timestamp_add_now(enum timestamp_id id);
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/* Apply a factor of N/M to all timestamps recorded so far. */
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void timestamp_rescale_table(uint16_t N, uint16_t M);
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/*
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* Get the time since boot scaled in microseconds. Therefore use the base time
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* of the timestamps to get the initial value which is subtracted from
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* current timestamp at call time. This will provide a more reliable value even
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* if the TSC is not reset on soft reset or warm start.
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*/
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uint32_t get_us_since_boot(void);
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#else
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#define timestamp_init(base)
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#define timestamp_add(id, time)
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#define timestamp_add_now(id)
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#define timestamp_rescale_table(N, M)
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#define get_us_since_boot() 0
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#endif
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/**
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* Workaround for guard combination above.
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*/
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#if CONFIG(COLLECT_TIMESTAMPS)
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/* Implemented by the architecture code */
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uint64_t timestamp_get(void);
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#else
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#define timestamp_get() 0
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#endif
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uint64_t get_initial_timestamp(void);
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/* Returns timestamp tick frequency in MHz. */
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int timestamp_tick_freq_mhz(void);
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#endif
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