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path: root/src/cpu/x86/car.c
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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>
2019-03-06x86/car: Fix incorrect config usageJulius Werner
This IS_ENABLED(XXX) line should've clearly been IS_ENABLED(CONFIG_XXX). This patch fixes the issue. Not tested on a real board, but looking at the affected code paths suggests that this will result in no effective change anywhere (since CAR should already be torn down by the time this is called on FSP1.0 boards, so do_car_migrate_variables() would have immediately exited anyway). Change-Id: I74e0ed4d04471ee521ff5c69a74a6f4c949e5847 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31744 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2017-05-30arch/x86: Add function to determine if we're currently running from CARJulius Werner
This patch adds a simple function that can be used to check if CAR_GLOBALs are currently being read from CAR or from DRAM. Change-Id: Ib7ad0896a691ef6e89e622b985417fedc43579c1 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/19787 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
2017-03-16cpu/x86: Fix various issues detected by checkpatch.plLee Leahy
Fix the following errors and warning detected by checkpatch.pl: ERROR: spaces required around that '=' (ctx:VxV) ERROR: space prohibited after that open parenthesis '(' ERROR: need consistent spacing around '|' (ctx:WxV) ERROR: need consistent spacing around '|' (ctx:VxW) ERROR: spaces required around that '=' (ctx:VxV) ERROR: spaces required around that '==' (ctx:VxV) ERROR: spaces required around that ':' (ctx:ExV) WARNING: space prohibited between function name and open parenthesis '(' TEST=Build and run on Galileo Gen2 Change-Id: I61d08055b207c607d5b7d72b0094ad8e24fbd106 Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com> Reviewed-on: https://review.coreboot.org/18840 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-16src/cpu/x86: Remove space between * and variable nameLee Leahy
Fix the following error detected by checkpatch.pl: ERROR: "foo * bar" should be "foo *bar" TEST=Build and run on Galileo Gen2 Change-Id: I8b5342df3f42dbb4576aecf5b0a59f195ae8511e Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com> Reviewed-on: https://review.coreboot.org/18839 Tested-by: build bot (Jenkins) Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com> Reviewed-by: Martin Roth <martinroth@google.com>
2016-03-05arch/x86: document CAR symbols and expose them in symbols.hAndrey Petrov
Attempt to better document the symbol usage in car.ld for cache-as-ram usage. Additionally, add _car_region_[start|end] that completely covers the entire cache-as-ram region. The _car_data_[start|end] symbols were renamed to _car_relocatable_data_[start|end] in the hopes of making it clearer that objects within there move. Lastly, all these symbols were added to arch/symbols.h. Change-Id: I1f1af4983804dc8521d0427f43381bde6d23a060 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13804 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Furquan Shaikh <furquan@google.com>
2015-11-24FSP 1.0: Fix CAR issues - broken timestamps and consoleBen Gardner
FSP 1.0 has a fixed-size temporary cache size and address and the entire cache is migrated in the FSP FspInitEntry() function. Previous code expected the symbol _car_data_start to be the same as CONFIG_DCACHE_RAM_BASE and _car_data_end to be the same as _preram_cbmem_console. FSP 1.0 is the only one that migrates _preram_cbmem_console. Others leave that where it is and extract the early console data in cbmemc_reinit(). Special handling is needed to handle that. Commit dd6fa93d broke both assumptions and so broke the timestamp table and console. The fix is to use CONFIG_DCACHE_RAM_BASE when calculating the offset and to use _preram_cbmem_console instead of _car_data_end for the console check. Change-Id: I6db109269b3537f7cb1300357c483ff2a745ffa7 Signed-off-by: Ben Gardner <gardner.ben@gmail.com> Reviewed-on: http://review.coreboot.org/12511 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
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>
2015-08-13amd: raminit sysinfo offset fixAaron Durbin
The sysinfo object within the k8 ram init is used to communicate progess/status from all the nodes in the system. However, the code was assuming where the sysinfo object lived in cache-as-ram. The layout of cache-as-ram is dynamic so one needs to do the lookup of the correct address at runtime. The way the amd code is compiled by #include'ing .c files makes the solution a little more complex in that some cache-as-ram support code needed to be refactored. Change-Id: I6500fa7b005dc082c4c0b3382ee2c3a138d9ac31 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/10961 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-07-17Remove unused Kconfig symbols in c codeMartin Roth
The BROKEN_CAR_MIGRATE symbol was removed in commit a6371940 - x86 cache-as-ram: Remove BROKEN_CAR_MIGRATE option The symbol DISABLE_SANDYBRIDGE_HYPERTHREADING is from Sage, and was never added to the coreboot.org codebase. Change-Id: I953fe7c46106634a5a3fcdaff88b39e884f152e6 Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: http://review.coreboot.org/10941 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-06-09cbmem: add indicator to hooks if cbmem is being recoveredAaron Durbin
It can be helpful to certain users of the cbmem init hooks to know if recovery was done or not. Therefore, add this as a parameter to the hooks. Change-Id: I049fc191059cfdb8095986d3dc4eee9e25cf5452 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/10480 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-06-09cbmem: Unify CBMEM init tasks with CBMEM_INIT_HOOK() APIKyösti Mälkki
Squashed and adjusted two changes from chromium.git. Covers CBMEM init for ROMTAGE and RAMSTAGE. cbmem: Unify random on-CBMEM-init tasks under common CBMEM_INIT_HOOK() API There are several use cases for performing a certain task when CBMEM is first set up (usually to migrate some data into it that was previously kept in BSS/SRAM/hammerspace), and unfortunately we handle each of them differently: timestamp migration is called explicitly from cbmem_initialize(), certain x86-chipset-specific tasks use the CAR_MIGRATION() macro to register a hook, and the CBMEM console is migrated through a direct call from romstage (on non-x86 and SandyBridge boards). This patch decouples the CAR_MIGRATION() hook mechanism from cache-as-RAM and rechristens it to CBMEM_INIT_HOOK(), which is a clearer description of what it really does. All of the above use cases are ported to this new, consistent model, allowing us to have one less line of boilerplate in non-CAR romstages. BRANCH=None BUG=None TEST=Built and booted on Nyan_Blaze and Falco with and without CONFIG_CBMEM_CONSOLE. Confirmed that 'cbmem -c' shows the full log after boot (and the resume log after S3 resume on Falco). Compiled for Parrot, Stout and Lumpy. Original-Change-Id: I1681b372664f5a1f15c3733cbd32b9b11f55f8ea Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/232612 Reviewed-by: Aaron Durbin <adurbin@chromium.org> cbmem: Extend hooks to ramstage, fix timestamp synching Commit 7dd5bbd71 (cbmem: Unify random on-CBMEM-init tasks under common CBMEM_INIT_HOOK() API) inadvertently broke ramstage timestamps since timestamp_sync() was no longer called there. Oops. This patch fixes the issue by extending the CBMEM_INIT_HOOK() mechanism to the cbmem_initialize() call in ramstage. The macro is split into explicit ROMSTAGE_/RAMSTAGE_ versions to make the behavior as clear as possible and prevent surprises (although just using a single macro and relying on the Makefiles to link an object into all appropriate stages would also work). This allows us to get rid of the explicit cbmemc_reinit() in ramstage (which I somehow accounted for in the last patch without realizing that timestamps work exactly the same way...), and replace the older and less flexible cbmem_arch_init() mechanism. Also added a size assertion for the pre-RAM CBMEM console to memlayout that could prevent a very unlikely buffer overflow I just noticed. BRANCH=None BUG=None TEST=Booted on Pinky and Falco, confirmed that ramstage timestamps once again show up. Compile-tested for Rambi and Samus. Original-Change-Id: If907266c3f20dc3d599b5c968ea5b39fe5c00e9c Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/233533 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I1be89bafacfe85cba63426e2d91f5d8d4caa1800 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Signed-off-by: Marc Jones <marc.jones@se-eng.com> Reviewed-on: http://review.coreboot.org/7878 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-05-21Remove address from GPLv2 headersPatrick Georgi
As per discussion with lawyers[tm], it's not a good idea to shorten the license header too much - not for legal reasons but because there are tools that look for them, and giving them a standard pattern simplifies things. However, we got confirmation that we don't have to update every file ever added to coreboot whenever the FSF gets a new lease, but can drop the address instead. util/kconfig is excluded because that's imported code that we may want to synchronize every now and then. $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *MA[, ]*02110-1301[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 59 Temple Place[-, ]*Suite 330, Boston, MA *02111-1307[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.:Foundation, Inc.:" {} + $ find * -type f -a \! -name \*.patch \ -a \! -name \*_shipped \ -a \! -name LICENSE_GPL \ -a \! -name LGPL.txt \ -a \! -name COPYING \ -a \! -name DISCLAIMER \ -exec sed -i "/Foundation, Inc./ N;s:Foundation, Inc.* USA\.* *:Foundation, Inc. :;s:Foundation, Inc. $:Foundation, Inc.:" {} + Change-Id: Icc968a5a5f3a5df8d32b940f9cdb35350654bef9 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/9233 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
2015-04-24fsp: Move fsp to fsp1_0Marc Jones
Prepare for FSP 1.1 integration by moving the FSP to a FSP 1.0 specific directory. See follow-on patches for sharing of common code. Change-Id: Ic58cb4074c65b91d119909132a012876d7ee7b74 Signed-off-by: Marc Jones <marc.jones@se-eng.com> Reviewed-on: http://review.coreboot.org/9970 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-03-10x86 cache-as-ram: Remove BROKEN_CAR_MIGRATE optionKyösti Mälkki
This was added to handle cases of Intel FSP platforms that had EARLY_CBMEM_INIT but could not migrate CAR variables to CBMEM. These boards were recently fixed. To support combination of EARLY_CBMEM_INIT without CAR migration was added maintenance effort with little benefits. You had no CBMEM console for romstage and the few timestamps you could store were circulated via PCI scratchpads or CMOS nvram. Change-Id: I5cffb7f2b14c45b67ee70cf48be4d7a4c9e5f761 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/8636 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-02-06FSP & CBMEM: Fix broken cbmem CAR transition.Martin Roth
1) Save the pointer to the FSP HOB list to low memory at address 0x614. This is the same location as CBMEM_RESUME_BACKUP - the two aren't used in the same platform, so overlapping should be OK. I didn't see any documentation that actually said that this location was free to use, and didn't need to be restored after use in S3 resume, but it looks like the DOS boot vector gets loaded juat above this location, so it SHOULD be ok. The alternative is to copy the memory out and store it in cbmem until we're ready to restore it. 2) When a request for the pointer to a CAR variable comes in, pass back the location inside the FSP hob structure. 3) Skip the memcopy of the CAR Data. The CAR variables do not get transitioned back into cbmem, but used out of the HOB structure. 4) Remove the BROKEN_CAR_MIGRATE Kconfig option from the FSP platform. Change-Id: Iaf566dce1b41a3bcb17e4134877f68262b5e113f Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: http://review.coreboot.org/8196 Reviewed-by: Aaron Durbin <adurbin@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2015-01-27CBMEM: Tidy up CAR migrationKyösti Mälkki
Move the CAR migration call to arch -specific part of CBMEM init, it is truly a x86 specific thing. Change-Id: I715417e54f197b8745e0670d6b900a5660178141 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/7860 Reviewed-by: Aaron Durbin <adurbin@google.com> Tested-by: build bot (Jenkins)
2015-01-27CBMEM console: Fix CAR migration stepKyösti Mälkki
With the change it becomes irrelevant if memcpy() car.global_data or cbmemc_reinit() is done first. Change-Id: Ie479eef346c959e97dcc55861ccb0db1321fb7b2 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/8032 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@google.com> Tested-by: build bot (Jenkins)
2014-12-30CBMEM: Always build for x86 romstageKyösti Mälkki
Always build CBMEM for romstage, even for boards that will not use it. We further restrict car_migrate_variables() runs to non-ROMCC boards without BROKEN_CAR_MIGRATE. This fixes regression of commit 71b21455 that broke CBMEM console support for boards with a combination of !EARLY_CBMEM_INIT && !HAVE_ACPI_RESUME. Change-Id: Ife91d7baebdc9bd1e086896400059a165d3aa90f Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/7877 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-02-24CAR_GLOBAL: enforce compiler to check if _start != _endEdward O'Callaghan
There are some fun rules C compilers can use to optimize their code. One of them is the assumption that two symbols point to two different addresses. In this case this wasn't true, resulting in unintended code execution (and later, a crash) with a clang build. Change-Id: I1496b22e1d1869ed0610e321b6ec6a83252e9d8b Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/4719 Tested-by: build bot (Jenkins)
2013-10-13Rename cpu/x86/car.h to arch/early_variables.hStefan Reinauer
and add an ARMv7 version. Change-Id: I14fbff88d7c2b003dde57a19bf0ba9640d322156 Signed-off-by: Stefan Reinauer <reinauer@google.com> [km: rebased fa004acf8 from chromium git] Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3939 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2013-07-11cpu: Fix spellingMartin Roth
Change-Id: I69c46648de0689e9bed84c7726906024ad65e769 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/3729 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-06-22Do CAR variable migration only onceAaron Durbin
Non-S3 resume paths of sandy/ivybridge call cbmem_initialize() more than once. Doing car_migrate_variables() more than twice caused at least loss of some lines in CBMEM console. Change-Id: Idd14aba9384984aa3a7d38937a4b3572aa5dc088 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/3512 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-05-16x86: add cache-as-ram migration optionAaron Durbin
There are some boards that do a significant amount of work after cache-as-ram is torn down but before ramstage is loaded. For example, using vboot to verify the ramstage is one such operation. However, there are pieces of code that are executed that reference global variables that are linked in the cache-as-ram region. If those variables are referenced after cache-as-ram is torn down then the values observed will most likely be incorrect. Therefore provide a Kconfig option to select cache-as-ram migration to memory using cbmem. This option is named CAR_MIGRATION. When enabled, the address of cache-as-ram variables may be obtained dynamically. Additionally, when cache-as-ram migration occurs the cache-as-ram data region for global variables is copied into cbmem. There are also automatic callbacks for other modules to perform their own migration, if necessary. Change-Id: I2e77219647c2bd2b1aa845b262be3b2543f1fcb7 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/3232 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>