7a2ce81722
Now that we have timestamps in pre-RAM stages, let's actually make use of them. This patch adds several timestamps to both the bootblock and especially the verstage to allow more fine-grained boot time tracking. Some of the introduced timestamps can appear more than once per boot. This doesn't seem to be a problem for both coreboot and the cbmem utility, and the context makes it clear which operation was timestamped at what point. Also simplifies cbmem's timestamp printing routine a bit, fixing a display bug when a timestamp had a section of exactly ",000," in it (e.g. 1,000,185). BRANCH=None BUG=None TEST=Booted Pinky, Blaze and Falco, confirmed that all timestamps show up and contained sane values. Booted Storm (no timestamps here since it doesn't support pre-RAM timestamps yet). Change-Id: I5979bfa9445a9e0aba98ffdf8006c21096743456 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/234063 Reviewed-by: Aaron Durbin <adurbin@chromium.org>
122 lines
3.9 KiB
C
122 lines
3.9 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2011 Google Inc.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*/
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#ifndef __TIMESTAMP_H__
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#define __TIMESTAMP_H__
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#include <stdint.h>
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struct timestamp_entry {
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uint32_t entry_id;
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uint64_t entry_stamp;
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} __attribute__((packed));
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struct timestamp_table {
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uint64_t base_time;
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uint32_t max_entries;
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uint32_t num_entries;
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struct timestamp_entry entries[0]; /* Variable number of entries */
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} __attribute__((packed));
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enum timestamp_id {
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TS_START_ROMSTAGE = 1,
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TS_BEFORE_INITRAM = 2,
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TS_AFTER_INITRAM = 3,
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TS_END_ROMSTAGE = 4,
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TS_START_VBOOT = 5,
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TS_END_VBOOT = 6,
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TS_START_COPYRAM = 8,
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TS_END_COPYRAM = 9,
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TS_START_RAMSTAGE = 10,
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TS_START_BOOTBLOCK = 11,
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TS_END_BOOTBLOCK = 12,
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TS_START_COPYROM = 13,
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TS_END_COPYROM = 14,
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TS_START_ULZMA = 15,
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TS_END_ULZMA = 16,
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TS_DEVICE_ENUMERATE = 30,
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TS_FSP_BEFORE_ENUMERATE,
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TS_FSP_AFTER_ENUMERATE,
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TS_DEVICE_CONFIGURE = 40,
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TS_DEVICE_ENABLE = 50,
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TS_DEVICE_INITIALIZE = 60,
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TS_DEVICE_DONE = 70,
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TS_CBMEM_POST = 75,
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TS_WRITE_TABLES = 80,
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TS_FSP_BEFORE_FINALIZE,
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TS_FSP_AFTER_FINALIZE,
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TS_LOAD_PAYLOAD = 90,
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TS_ACPI_WAKE_JUMP = 98,
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TS_SELFBOOT_JUMP = 99,
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/* 500+ reserved for vendorcode extensions (500-600: google/chromeos) */
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TS_START_COPYVER = 501,
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TS_END_COPYVER = 502,
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TS_START_TPMINIT = 503,
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TS_END_TPMINIT = 504,
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TS_START_VERIFY_SLOT = 505,
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TS_END_VERIFY_SLOT = 506,
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TS_START_HASH_BODY = 507,
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TS_DONE_LOADING = 508,
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TS_DONE_HASHING = 509,
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TS_END_HASH_BODY = 510,
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/* 1000+ reserved for payloads (1000-1200: ChromeOS depthcharge) */
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};
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#if CONFIG_COLLECT_TIMESTAMPS
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/*
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* Order of usage of timestamp library is:
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* Call timestamp_early_init / timestamp_init to set base time before any
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* timestamp_add function is called. timestamp_early_init also ensures that the
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* cache is valid in _timestamp region.
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* After this, timestamp_add / timestamp_add_now can be used to record
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* timestamps. Sync will be automatically taken care of by cbmem_initialize
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*/
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/*
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* Initialize the cache to a valid state and set the base time.
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* This function is used before DRAM is setup so that the timestamp cache can
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* be initialized in _timestamp region.
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* Both, timestamp_init and timestamp_early_init reset the cbmem state to
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* timestamp table reset required. Thus, whenever a timestamp_add or
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* timestamp_sync is done to add new entries into the cbmem timestamp table, it
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* first resets the table to 0 entries.
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*/
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void timestamp_early_init(uint64_t base);
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/* Initialize the base time for timestamps and mark cache as valid */
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void timestamp_init(uint64_t base);
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/*
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* Add a new timestamp. Depending on cbmem is available or not, this timestamp
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* will be stored to cbmem / timestamp cache.
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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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/* Implemented by the architecture code */
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uint64_t timestamp_get(void);
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#else
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static inline void timestamp_early_init(uint64_t base) { }
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static inline void timestamp_init(uint64_t base) { }
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static inline void timestamp_add(enum timestamp_id id, uint64_t ts_time) { }
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static inline void timestamp_add_now(enum timestamp_id id) { }
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static inline void timestamp_sync(void) { }
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static inline uint64_t timestamp_get(void) { return 0; }
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#endif
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#endif
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