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2019-12-11printf: Automatically prefix %p with 0xJulius Werner
According to the POSIX standard, %p is supposed to print a pointer "as if by %#x", meaning the "0x" prefix should automatically be prepended. All other implementations out there (glibc, Linux, even libpayload) do this, so we should make coreboot match. This patch changes vtxprintf() accordingly and removes any explicit instances of "0x%p" from existing format strings. How to handle zero padding is less clear: the official POSIX definition above technically says there should be no automatic zero padding, but in practice most other implementations seem to do it and I assume most programmers would prefer it. The way chosen here is to always zero-pad to 32 bits, even on a 64-bit system. The rationale for this is that even on 64-bit systems, coreboot always avoids using any memory above 4GB for itself, so in practice all pointers should fit in that range and padding everything to 64 bits would just hurt readability. Padding it this way also helps pointers that do exceed 4GB (e.g. prints from MMU config on some arm64 systems) stand out better from the others. Change-Id: I0171b52f7288abb40e3fc3c8b874aee14b9bdcd6 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37626 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: David Guckian
2019-12-02src/: Remove g_ prefixes and _g suffixes from variablesPatrick Georgi
These were often used to distinguish CAR_GLOBAL variables that weren't directly usable. Since we're getting rid of this special case, also get rid of the marker. This change was created using coccinelle and the following script: @match@ type T; identifier old =~ "^(g_.*|.*_g)$"; @@ old @script:python global_marker@ old << match.old; new; @@ new = old if old[0:2] == "g_": new = new[2:] if new[-2:] == "_g": new = new[:-2] coccinelle.new = new @@ identifier match.old, global_marker.new; @@ - old + new @@ type T; identifier match.old, global_marker.new; @@ - T old; + T new; @@ type T; identifier match.old, global_marker.new; @@ - T old + T new = ...; There were some manual fixups: Some code still uses the global/local variable naming scheme, so keep g_* there, and some variable names weren't completely rewritten. Change-Id: I4936ff9780a0d3ed9b8b539772bc48887f8d5eed Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37358 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-11-29drivers/elog/elog.c: Drop CAR_GLOBAL_MIGRATION supportArthur Heymans
Change-Id: I7dcc8d08b40560f105c22454bda1282afaa617da Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37046 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-22AUTHORS: Move src/drivers/[a*-i*] copyrights into AUTHORS fileMartin Roth
As discussed on the mailing list and voted upon, the coreboot project is going to move the majority of copyrights out of the headers and into an AUTHORS file. This will happen a bit at a time, as we'll be unifying license headers at the same time. Updated Authors file is in a separate commit. Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: I1acea8c975d14904b7e486dc57a1a67480a6ee6e Reviewed-on: https://review.coreboot.org/c/coreboot/+/36178 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-07-13drivers/elog: Fix ELOG_GSMI dependencyKyösti Mälkki
SMM_TSEG is a qualifier between TSEG and ASEG only, while HAVE_SMI_HANDLER currently tells if SMM will be installed. Move rest of the file under same 'if ELOG' block. Change-Id: I620d3ce5aa9632d862d6480922144f002cf6423b Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34195 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-24Replace ENV_RAMSTAGE with ENV_PAYLOAD_LOADERSubrata Banik
This patch relying on new rule, ENV_PAYLOAD_LOADER which is set to ENV_RAMSTAGE. This approach will help to add future optimization (rampayload) in coreboot flow if required. Change-Id: Ib54ece7b9e5f281f8a092dc6f38c07406edfa5fa Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32725 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: ron minnich <rminnich@gmail.com>
2019-05-16drivers/elog: Rename ramstage_elog_add_boot_count() to elog_add_boot_count()Subrata Banik
This patch removes ramstage_ prefix from ramstage_elog_add_boot_count() function. Change-Id: Ia75b2dc959ace7dc26dc974c5f4b5cb6c5a25617 Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32803 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: ron minnich <rminnich@gmail.com>
2019-03-08coreboot: Replace all IS_ENABLED(CONFIG_XXX) with CONFIG(XXX)Julius Werner
This patch is a raw application of find src/ -type f | xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g' Change-Id: I6262d6d5c23cabe23c242b4f38d446b74fe16b88 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31774 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-03-04arch/io.h: Drop unnecessary includeKyösti Mälkki
Change-Id: I91158452680586ac676ea11c8589062880a31f91 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/31692 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-01-27src: Fix the warning "type 'hex' are always defined"Elyes HAOUAS
This is spotted using "./util/lint/kconfig_lint" While at it, do the check in C and not the preprocessor. Change-Id: Icfda267936a23d9d14832116d67571f42f685906 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/31050 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2018-11-15drivers/elog: Add support for early elogKarthikeyan Ramasubramanian
Add support to log events during the preram stages. BUG=b:117884485 BRANCH=None TEST=Add an event log from romstage, boot to ChromeOS Change-Id: Ia69515961da3bc72740f9b048a53d91af79c5b0d Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/29358 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-11-13drivers/elog: Add Ramstage helper to add boot countKarthikeyan Ramasubramanian
Add a helper function specific to ramstage to add the boot count information into event log at ramstage. BUG=b:117884485 BRANCH=None TEST=Add an event log from romstage, boot to ChromeOS Change-Id: Ic79f1a702548d8a2cd5c13175a9b2d718527953f Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/29542 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-11-13drivers/elog: Group event log state informationKarthikeyan Ramasubramanian
Group event log state information together to manage them better during different stages of coreboot. BUG=b:117884485 BRANCH=None TEST=Add an event log from romstage, boot to ChromeOS Change-Id: I62792c0f5063c89ad11b512f1777c7ab8a2c13e5 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/29541 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-10-08Move compiler.h to commonlibNico Huber
Its spreading copies got out of sync. And as it is not a standard header but used in commonlib code, it belongs into commonlib. While we are at it, always include it via GCC's `-include` switch. Some Windows and BSD quirk handling went into the util copies. We always guard from redefinitions now to prevent further issues. Change-Id: I850414e6db1d799dce71ff2dc044e6a000ad2552 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/28927 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-08-22drivers/elog/elog.c: Create extended eventRichard Spiegel
For debug reasons, sometimes you not only want to log an event, but also some extra information that would help debugging. Create an extended event reporting event type with a dword complement, and define extended events for failing to enter S3 due to pending wake event (one for pm1 and one for gpe0). BUG=b:111100312 TEST=Add a fake pending wake event, build and boot grunt, see the event in eventlog.txt. Change-Id: I3e8df0953db09197d6d8145b0fc1e583379deaa5 Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/28246 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2018-08-10src/drivers: Fix typoElyes HAOUAS
Change-Id: I9144937b72a98517cbd41c093cff7bad543b4140 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/27916 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-11drivers/spi: Remove Kconfig prompt from SPI_FLASH_SMMNico Huber
Why would that be a user visible option? Drop the prompt and the `default n` and select it automatically when needed. I hope I caught all its users. TEST=Confirmed that systems with ELOG_GSMI or DEBUG_SMI compile and link. Change-Id: I44aeec530cc333f4ed4c8cfe67c7b5c9d8fb0049 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/26872 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2018-05-25elog: Only log POST code from previous boot on non-S3 resumeDaniel Kurtz
It doesn't make sense to log post codes from a previous (failed) boot if we are resuming from S3, since the previous boot has to have been successful in order to enter S3 in the first place. While we are at it, use a helper function to combine conditionals and improve readability. BUG=none TEST=boot, suspend & resume grunt Change-Id: I4f3bb8526a0c8c0ea1efd924628b33c147543b88 Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Reviewed-on: https://review.coreboot.org/26528 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-25elog: Only print TYPE_BOOT on S3-resume if CONFIG_ELOG_BOOT_COUNTDaniel Kurtz
Previously, we were unconditionally adding a TYPE_BOOT message to the ELOG on every boot (even S3 resume) if CONFIG_ELOG_BOOT_COUNT was disabled. Now that boot_count_read() returns 0 for the !CONFIG_ELOG_BOOT_COUNT case, the code becomes a bit simpler. BUG=b:79865267 TEST=firmware_EventLog Change-Id: I803fa4c3e03b6cc94751cf0ce34b78021ae2124e Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Reviewed-on: https://review.coreboot.org/26527 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-04-24compiler.h: add __weak macroAaron Durbin
Instead of writing out '__attribute__((weak))' use a shorter form. Change-Id: If418a1d55052780077febd2d8f2089021f414b91 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25767 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2017-10-19elog: Support logging S0ix sleep/wake info in elogFurquan Shaikh
1. Add support for new GSMI commands to log S0ix entry/exit information in elog. 2. In case of resume, provide callbacks to allow platform and mainboard to log any wake source information. BUG=b:67874513 Change-Id: I593e8a9e31cad720ac1f77aab447a0dbdbe9a28b Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/22079 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-10-16drivers/elog: Fix debug build errorsJohn E. Kabat Jr
Add hexdump.c to Makefile.inc and change an elog_debug format to use %z for size_t arguments. This corrects build errors when ELOG_DEBUG is used. Change-Id: I3d5547eed8ada7c4bdcbbb8bb9d6965ade73beda Signed-off-by: John E. Kabat Jr <john.kabat@scarletltd.com> Reviewed-on: https://review.coreboot.org/21769 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-07-13src/drivers: add IS_ENABLED() around Kconfig symbol referencesMartin Roth
Some of these can be changed from #if to if(), but that will happen in a follow-on commmit. Change-Id: Ib3a1cf04482a8f19b159c31cfb16a7b492748d91 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/20352 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2017-07-13Rename __attribute__((packed)) --> __packedStefan Reinauer
Also unify __attribute__ ((..)) to __attribute__((..)) and handle ((__packed__)) like ((packed)) Change-Id: Ie60a51c3fa92b5009724a5b7c2932e361bf3490c Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/15921 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-04-19elog: Print timestamp when logging eventJulius Werner
We're already reading the RTC whenever we file an event, we might as well print out the value at that time. Having a few RTC timestamps in the firmware log makes it easier to correlate that part of the log to a particular boot once we start having multiple boots in the log. Change-Id: I750dd18aa2c43c95b8c1fbb8f404c1e3a77bec73 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/19305 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-08-19drivers/elog: use region_device for NV storageAaron Durbin
Instead of assuming SPI backing use a region_device to abstract away the underlying storage mechanism. BUG=chrome-os-partner:55932 Change-Id: I6b0f5a7e9bea8833fb1bca87e02abefab63acec3 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16204 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-19Kconfig: separate memory mapped boot device from SPIAaron Durbin
Make the indication of the boot device being memory mapped separate from SPI. However, retain the same defaults that previously existed. BUG=chrome-os-partner:56151 Change-Id: I06f138078c47a1e4b4b3edbdbf662f171e11c9d4 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16228 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-18Kconfig: rename BOOT_MEDIA_SPI_BUS to BOOT_DEVICE_SPI_FLASH_BUSAaron Durbin
Provide a default value of 0 in drivers/spi as there weren't default values aside from specific mainboards and arch/x86. Remove any default 0 values while noting to keep the option's default to 0. BUG=chrome-os-partner:56151 Change-Id: If9ef585e011a46b5cd152a03e41d545b36355a61 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16192 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-15Revert "Kconfig: separate memory mapped boot device from SPI"Aaron Durbin
This reverts commit a83bbf58541cf41ea7a97dedbc8c02dffa59e86d. This was submitted out of order. Change-Id: Ic5a28faf94c1f1901a72e46343722eb4224c5086 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16226 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Nico Huber <nico.h@gmx.de>
2016-08-15Kconfig: separate memory mapped boot device from SPIAaron Durbin
Make the indication of the boot device being memory mapped separate from SPI. However, retain the same defaults that previously existed. BUG=chrome-os-partner:56151 Change-Id: Ibdd7c8754f9bf560a878136b1f55238e2c2549d3 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16193 Reviewed-by: Andrey Petrov <andrey.petrov@intel.com> Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-14drivers/elog: provide more debug infoAaron Durbin
Provide more informative messages when CONFIG_ELOG_DEBUG is enabled as well as more informative error messages in the case of elog_scan_flash() failing. In the sync path the in-memory buffer is dumped in before the contents are read back from the non-volatile backing store and dumped again if the subsequent parsing fails. BUG=chrome-os-partner:55932 Change-Id: I716adfb246ef6fbefc0de89cd94b3c1310468896 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16184 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-10elog: Ensure eventlog will always get initialized when configured inJulius Werner
Commit 0d9cd92e (chromeos: Clean up elog handling) removed the individual elog_init() calls from mainboards that did them and automated adding certain events through the boot state machine. Unfortunately, the new code would sometimes not log any specific event at all, and thereby also never call elog_init() (through elog_add_event()) which adds the "System boot" event. We can assume that any board that configures the eventlog at all actually wants to use it, so let's just add another call to elog_init() to the boot state machine so we can ensure it gets called at least once. BRANCH=None BUG=chrome-os-partner:56001 TEST=Booted Kevin, confirmed that eventlog code runs again. Change-Id: Ibe7bfc94b3e3d11ba881399a39f9915991c89d8c Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/16118 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-08-09drivers/elog: provide return status for all operationsAaron Durbin
Instead of relying on global state to determine if an error occurred provide the ability to know if an add or shrink operation is successful. Now the call chains report the error back up the stack and out to the callers. BUG=chrome-os-partner:55932 Change-Id: Id4ed4d93e331f1bf16e038df69ef067446d00102 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16104 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-09drivers/elog: clean up SMBIOS related codeAaron Durbin
Don't conditionally compile parts of the code. The unused pieces get culled by the linker, and the #if's just clutter things up. BUG=chrome-os-partner:55932 Change-Id: Ic18b2deb0cfef7167c05f0a641eae2f4cdc848ee Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16102 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-09drivers/elog: consolidate checks in elog_find_flash()Aaron Durbin
There were checks against global variables trying to determine failing cases of elog_find_flash(). Instead move the checks into elog_find_flash() and return value indicating failure. A minimum 4KiB check was added to ensure the eventlog is at least that size which makes the heuristic checks cleaner. BUG=chrome-os-partner:55932 Change-Id: I4d9d13148555e05d4f217a10f995831a0e437fc3 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16101 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-09drivers/elog: remove unnecessary global stateAaron Durbin
There were 3 variables indicating the state of the event log region. However, there's no need to keep track of those individually. The only thing required is to know is if elog_scan_flash() failed. There's no other tracking required beyond that. BUG=chrome-os-partner:55932 Change-Id: I88ad32091d3c37966a2ac6272f8ad95bcc8c4270 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16100 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-09drivers/elog: sync events to non-volatile storage lastAaron Durbin
There were multiple paths where writes and erases of the flash were being done. Instead provide a single place for synchronizing the non-volatile storage from the mirrored event log. This synchronization point resides as the very last thing done when adding an event to the log. The shrinking check happens before committing the event to non-volatile storage so there's no need to attempt a shrink in elog_init() because any previous events committed already honored the full threshold. BUG=chrome-os-partner:55932 Change-Id: Iaec9480eb3116fdc2f823c25d028a4cfb65a6eaf Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16099 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-08drivers/elog: treat offsets relative to start of mirrorAaron Durbin
Instead of treating offsets relative to after the header make the offsets relative to the in-memory mirror buffer. This simplifies the logic in that all offsets are treated the same. It also allows one to remove a global variable. BUG=chrome-os-partner:55932 Change-Id: I42491e05755d414562b02b6f9ae47f5c357d2f8a Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16098 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-08drivers/elog: use region_device for mirroring into ramAaron Durbin
A region_device can be used to represent the in-memory mirror of the event log. The region_device infrastructure has builtin bounds checking so there's no need to duplicate that. In addition, it allows for removing much of the math juggling for the buffer size, etc. BUG=chrome-os-partner:55932 Change-Id: Ic7fe9466019640b449257c5905ed919ac522bb58 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16097 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-08drivers/elog: use offsets for checking cleared buffersAaron Durbin
There's only 2 users of checking if the event buffer is cleared to the EOL value. Each were passing pointers of the in-memory mirror while also doing calculations for the size to check. Since the in-memory mirror is one big buffer the only thing required to know is the offset to start checking from. The check is always done through the end of the buffer. BUG=chrome-os-partner:55932 Change-Id: Icd4a7edc74407d6578fc93e9eb533abd3aa17277 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16096 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-08drivers/elog: perform writes in terms of offsetsAaron Durbin
Instead of taking pointers and back-calculating the proper offset perform writes in terms of the offsets within the elog region in flash. BUG=chrome-os-partner:55932 Change-Id: I5fd65423f5a6e03825c788bc36417f509b58f64d Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16095 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins)
2016-08-08drivers/elog: remove parameters from elog_flash_erase()Aaron Durbin
The elog_flash_erase() was only called to erase the entire elog region in flash. Therefore, drop the parameters and perform the full erase. BUG=chrome-os-partner:55932 Change-Id: I6590347ae60d407bc0df141e9196eb70532f8585 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16094 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-08drivers/elog: remove unnecessary check in elog_shrink()Aaron Durbin
There was a check against the next event offset against the shrink size in elog_shrink(). However, all calls to elog_shrink() were conditionalized on the next event offset exceeding the full threshold. The shrink size is set to the minimum of the full threshold and a percentage of the elog region size. Therefore, it's impossible for the next event offset to be less than the shrink size because full threshold is always greater than or equal to the shrink size. BUG=chrome-os-partner:55932 Change-Id: Ie6ff106f1c53c15aa36a82223a235a7ac97fd8c7 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16093 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-08drivers/elog: use event region size when adding a clear eventAaron Durbin
For the elog shrink case we log the number of bytes shrunk from the event log. However, when clearing the log the size recorded was the entire region size including the header as well as the event region space. To be more consistent mark the clearing event with the number of bytes actually cleared out (excluding the header size). BUG=chrome-os-partner:55932 Change-Id: I7c33da97bd29a90bfe975b1c6f148f181016f13f Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16092 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-08drivers/elog: remove unused functionAaron Durbin
get_rom_size() is no longer used. Remove it. BUG=chrome-os-partner:55932 Change-Id: Id9fa8f67b67ee355243a5c763cfafa0ce76e9b2b Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16088 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-07-26drivers/elog: put back 4KiB limitAaron Durbin
The removal of ELOG_FLASH_BASE and ELOG_FLASH_SIZE resulted in the FMAP region for the eventlog to be honored. However, certain systems seem to have a large eventlog region that wasn't being used in practice. Because of the malloc() in the eventlog init sequence a large allocation was now being requested that can exhaust the heap. Put back the 4KiB capacity until the resource usage is fixed. BUG=chrome-os-partner:55593 Change-Id: Ib54b396b48e5be80f737fc3feb0d58348c0d2844 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15835 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-07-24drivers/elog: remove elog Kconfig variablesAaron Durbin
Now that FMAP is a first class citizen in coreboot there's no reason to have alternate locations for ELOG. If one wants eventlog support they need to specify the ELOG entry in the FMAP. The one side effect is that the code was previously limiting the size to 4KiB because the default ELOG_AREA_SIZE was 4KiB. However, that's no longer the case as the FMAP region size is honored. Change-Id: I4ce5f15032387155d2f56f0de61f2d85271ba606 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15814 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2016-07-18elog: Use rdev_mmap to find offset of ELOGFurquan Shaikh
In case of elog not being stored in CBMEM, calculate flash offset by using rdev_mmap instead of assuming that the entire flash is mapped just below 4GiB. This allows custom mappings of flash to correctly convert the flash offset to mmap address. BUG=chrome-os-partner:54186 TEST=Verified behavior on reef. mosys able to read out the elog correctly. Change-Id: I3eacd2c9266ecc3da1bd45c86ff9d0e8153ca3f2 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/15722 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-11-13elog: fix improper assumption for year valuesAaron Durbin
The elog format stores the year of the event in bcd format. Semi-recently rtc_get() started returning the full year, e.g. 2015. However, bin2bcd takes a uint8_t as a parameter. Converting a full year (2015 or 0x7df) to a uint8_t results in passing bad values (223 or 0xdf) to bin2bcd. In other words the input value of bin2bcd needs to be a number between 0 and 99. Therefore fix that mistake. BUG=chrome-os-partner:47388 BRANCH=None TEST=Events show up with correct year in eventlog now. Change-Id: I9209cb9175c0b4925337e2e5d4fea8316b30022a Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 95a86013234dc999c988291f636e2db3803cc24a Original-Change-Id: I12734bc3a423ba9d739658b8edc402b8d445f22e Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/311263 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/12410 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-10-31tree: drop last paragraph of GPL copyright headerPatrick Georgi
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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