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2018-08-07arch: Retire cache_sync_instructions() from <arch/cache.h> (except arm)Julius Werner
cache_sync_instructions() has been superseded by arch_program_segment_loaded() and friends for a while. There are no uses in common code anymore, so let's remove it from <arch/cache.h> for all architectures. arm64 still has an implementation and one reference, but they are not really needed since arch_program_segment_loaded() does the same thing already. Remove them. Leave it in arm(32) since there are several references (including in SoC code) that I don't feel like tracking down and testing right now. Change-Id: I6b776ad49782d981d6f1ef0a0e013812cf408524 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/27879 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-14pci: Fix compilation on non x86Patrick Rudolph
* Introduce pci_devfn_t on all arch * Add PCI function prototypes in arch/pci_ops.h * Remove unused pci_config_default() Change-Id: I71d6f82367e907732944ac5dfaabfa77181c5f20 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/25723 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-11-23Constify struct cpu_device_id instancesJonathan Neuschäfer
There is currently no case where a struct cpu_device_id instance needs to be modified. Thus, declare all instances as const. Change-Id: I5ec7460b56d75d255b3451d76a46df76a51d6365 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/22526 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-07-07arch/*: Update Kconfig symbol usageMartin Roth
- Update all symbols to use IS_ENABLED() - Update non-romcc usage to use 'if' instead of '#if' where it makes sense. Change-Id: I5a84414d2d1631e35ac91efb67a0d4c1f673bf85 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/20005 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2017-05-30arch: Unify basic cache clearing APIJulius Werner
Caching is a very architecture-specific thing, but most architectures have a cache in general. Therefore it can be useful to have a generic architecture-independent API to perform simple cache management tasks from common code. We have already standardized on the dcache_clean/invalidate naming scheme that originally comes from ARM in libpayload, so let's just do the same for coreboot. Unlike libpayload, there are other things than just DMA coherency we may want to achieve with those functions, so actually implement them for real even on architectures with cache-snooping DMA like x86. (In the future, we may find applications like this in libpayload as well and should probably rethink the API there... maybe move the current functionality to a separate dma_map/unmap API instead. But that's beyond scope of this patch.) Change-Id: I2c1723a287f76cd4118ef38a445339840601aeea Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/19788 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>
2016-05-03build system: remove CBFSTOOL_PRE1_OPTSPatrick Georgi
It isn't used anymore. Change-Id: Ie554d1dd87ae3f55547466e484c0864e55c9d102 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/14567 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-05-02lib/coreboot_table: use the architecture dependent table sizeAaron Durbin
Utilize the architecture dependent coreboot table size value from <arch/cbconfig.h> Change-Id: I80d51a5caf7c455b0b47c380e1d79cf522502a4c Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/14455 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2016-05-02arch: introduce architecture dependent common variablesAaron Durbin
Stefan and others have discussed their interest in only including options in Kconfig that are directly associated with building a coreboot image. There are variables that are architecture dependent that are utilized in the coreboot infrastructure. To meet that goal, introduce <arch/cbconfig.h> header file which defines variables for the coreboot infrastructure that are architecture dependent but utilized in common infrastructure. Change-Id: Ic4cb9e81bab042797539dce004db0f7ee8526ea6 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/14454 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2016-04-21lib: add common write_tables() implementationAaron Durbin
In order to de-duplicate common patterns implement one write_tables() function. The new write_tables() replaces all the architecture-specific ones that were largely copied. The callbacks are put in place to handle any per-architecture requirements. Change-Id: Id3d7abdce5b30f5557ccfe1dacff3c58c59f5e2b Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/14436 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-04-21lib/coreboot_table: add architecture hooks for adding tablesAaron Durbin
Add a architecture specific function, arch_write_tables(), that allows an architecture to add its required tables for booting. This callback helps write_tables() to be de-duplicated. Change-Id: I805c2f166b1e75942ad28b6e7e1982d64d2d5498 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/14435 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-04-21lib/bootmem: allow architecture specific bootmem rangesAaron Durbin
A architecture-specific function, named bootmem_arch_add_ranges(), is added so that each architecture can add entries into the bootmem memory map. This allows for a common write_tables() implementation to avoid code duplication. Change-Id: I834c82eae212869cad8bb02c7abcd9254d120735 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/14434 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-04-21arch: only print cbmem entries in one placeAaron Durbin
Each arch was calling cbmem_list() in their own write_tables() function. Consolidate that call and place it in common code in write_coreboot_table(). Change-Id: If0d4c84e0f8634e5cef6996b2be4a86cc83c95a9 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/14430 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-04-21arch: use Kconfig variable for coreboot table sizeAaron Durbin
Instead of hard coding a #define in each architecture's tables.c for the coreboot table size in cbmem use a Kconfig varible. This aids in aligning on a common write_tables() implementation instead of duplicating the code for each architecture. Change-Id: I09c0f56133606ea62e9a9c4c6b9828bc24dcc668 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/14429 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-03-09Makefile: Add build-time overlap check for programs loaded after corebootJulius Werner
On non-x86 platforms, coreboot uses the memlayout.ld mechanism to statically allocate the different memory regions it needs and guarantees at build time that there are no dangerous overlaps between them. At the end of its (ramstage) execution, however, it usually loads a payload (and possibly other platform-specific components) that is not integrated into the coreboot build system and therefore cannot provide the same overlap guarantees through memlayout.ld. This creates a dangerous memory hazard where a new component could be loaded over memory areas that are still in use by the code-loading ramstage and lead to arbitrary memory corruption bugs. This patch fills this gap in our build-time correctness guarantees by adding the necessary checks as a new intermediate Makefile target on route to assembling the final image. It will parse the memory footprint information of the payload (and other platform-specific post-ramstage components) from CBFS and compare it to a list of memory areas known to be still in use during late ramstage, generating a build failure in case of a possible hazard. BUG=chrome-os-partner:48008 TEST=Built Oak while moving critical regions in the way of BL31 or the payload, observing the desired build-time errors. Built Nyan, Jerry and Falco without issues for good measure. Change-Id: I3ebd2c1caa4df959421265e26f9cab2c54909b68 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/13949 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-02-22die() when attempting to use bounce buffer on non-i386.Vladimir Serbinenko
Only i386 has code to support bounce buffer. For others coreboot would silently discard part of binary which doesn't work and is a hell to debug. Instead just die. Change-Id: I37ae24ea5d13aae95f9856a896700a0408747233 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: https://review.coreboot.org/13750 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-02-19lib/coreboot_table: add function to allow arch code to add recordsAaron Durbin
Add lb_arch_add_records() to allow the architecture code to generically hook into the coreboot table generation. BUG=chrome-os-partner:50214 BRANCH=glados TEST=With all subsequent patches confirmed lb_arch_add_records() is called when a strong symbol is provided. Change-Id: I7c69c0ff0801392bbcf5aef586a48388b624afd4 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13669 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
2016-02-11arches: lib: add main_decl.h for main() declarationAaron Durbin
It is silly to have a single header to declare the main() symbol, however some of the arches provided it while lib/bootblock.c relied on the arch headers to declare it. Just move the declaration into its own header file and utilize it. Change-Id: I743b4c286956ae047c17fe46241b699feca73628 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13681 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins)
2016-02-11arch: remove stage_exit()Aaron Durbin
It's no longer used. Remove it. Change-Id: Id6f4084ab9d671e94f0eee76bf36fad9a174ef14 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13678 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-01-28Makefile: Make full use of src-to-obj macroNico Huber
There were several spots in the tree where the path to a per class object file was hardcoded. To make use of the src-to-obj macro for this, it had to be moved before the inclusion of subdirs. Which is fine, as it doesn't have dependencies beside $(obj). Tested by verifying that the resulting coreboot.rom files didn't change for all of Jenkins' abuild configurations. Change-Id: I2eb1beeb8ae55872edfd95f750d7d5a1cee474c4 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/13180 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-01-21console: Simplify bootblock console Kconfig selection logicAlexandru Gagniuc
Instead of depending BOOTBLOCK_CONSOLE on a set of architectures, allow the arch or platform to specify whether it can provide a C environment. This simplifies the selection logic. Change-Id: Ia3e41796d9aea197cee0a073acce63761823c3aa Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com> Reviewed-on: https://review.coreboot.org/12871 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-12-31imgtec/pistachio: Add SOC_REGISTERS memory regionIonela Voinescu
When used with a U-boot payload it will need this region identity mapped also, so we're defining it in preparation for that functionality. Change-Id: I27cee5b58cb899433b52bd06df07b5f2105212af Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Reviewed-on: https://review.coreboot.org/12768 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-12-29mips: add coherency argument to identity mappingIonela Voinescu
In order for a U-boot payload to work properly the soc_registers region (device registers) needs to be mapped as uncached. Therefore, add a coherency argument to the identity mapping funcion which will establish the type of mapping. Change-Id: I26fc546378acda4f4f8f4757fbc0adb03ac7db9f Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Reviewed-on: https://review.coreboot.org/12769 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-11-11arm/arm64: Generalize bootblock C entry pointJulius Werner
When we first added ARM support to coreboot, it was clear that the bootblock would need to do vastly different tasks than on x86, so we moved its main logic under arch/. Now that we have several more architectures, it turns out (as with so many things lately) that x86 is really the odd one out, and all the others are trying to do pretty much the same thing. This has already caused maintenance issues as the ARM32 bootblock developed and less-mature architectures were left behind with old cruft. This patch tries to address that problem by centralizing that logic under lib/ for use by all architectures/SoCs that don't explicitly opt-out (with the slightly adapted existing BOOTBLOCK_CUSTOM option). This works great out of the box for ARM32 and ARM64. It could probably be easily applied to MIPS and RISCV as well, but I don't have any of those boards to test so I'll mark them as BOOTBLOCK_CUSTOM for now and leave that for later cleanup. BRANCH=None BUG=None TEST=Built Jerry and Falco, booted Oak. Change-Id: Ibbf727ad93651e388aef20e76f03f5567f9860cb Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/12076 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
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>
2015-09-09linking: add and use LDFLAGS_commonAaron Durbin
Add an LDFLAGS_common variable and use that for each stage during linking within all the architectures. All the architectures support gc-sections, and as such they should be linking in the same way. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built rambi and analyzed the relocatable ramstage. Change-Id: I41fbded54055455889b297b9e8738db4dda0aad0 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11522 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-07-29arm, arm64, mips: Add rough static stack size checks with -Wstack-usageJulius Werner
We've seen an increasing need to reduce stack sizes more and more for space reasons, and it's always guesswork because no one has a good idea how little is too litte. We now have boards with 3K and 2K stacks, and old pieces of common code often allocate large temporary buffers that would lead to very dangerous and hard to detect bugs when someone eventually tries to use them on one of those. This patch tries improve this situation at least a bit by declaring 2K as the minimum stack size all of coreboot code should work with. It checks all function frames with -Wstack-usage=1536 to make sure we don't allocate more than 1.5K in a single buffer. This is of course not a perfect test, but it should catch the most common situation of declaring a single, large buffer in some close-to-leaf function (with the assumption that 0.5K is hopefully enough for all the "normal" functions above that). Change one example where we were a bit overzealous and put a 1K buffer into BSS back to stack allocation, since it actually conforms to this new assumption and frees up another kilobyte of that highly sought-after verstage space. Not touching x86 with any of this since it's lack of __PRE_RAM__ BSS often requires it to allocate way more on the stack than would usually be considered sane. BRANCH=veyron BUG=None TEST=Compiled Cosmos, Daisy, Falco, Blaze, Pit, Storm, Urara and Pinky, made sure they still build as well as before and don't show any stack usage warnings. Change-Id: Idc53d33bd8487bbef49d3ecd751914b0308006ec Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 8e5931066575e256dfc2295c3dab7f0e1b65417f Original-Change-Id: I30bd9c2c77e0e0623df89b9e5bb43ed29506be98 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/236978 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9729 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-06-21Remove obsolete EARLY_CONSOLE usageMartin Roth
The EARLY_CONSOLE Kconfig symbol was removed in commit 48713a1b - console: Drop EARLY_CONSOLE option The arm64 and mips directories don't even have early_console.c to include. Change-Id: Idc60ffb2bac2b180f4fdd0adf5c411e1f692a846 Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: http://review.coreboot.org/10615 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-06-10mips: implement arch_segment_loaded callbackIonela Voinescu
This change adds cache management after loading stages. Before jumping to a new stage we should flush the data caches to memory and invalidate instruction cache. After all segments are loaded CBFS cache is also flushed. With this change all stages of coreboot are now executed successfully. This was tested on Pistachio bring up board, also known as Urara. Change-Id: I86e07432c21a803ef1cfc41b633c5df42b99de90 Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Reviewed-on: http://review.coreboot.org/10456 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2015-06-10mips: CBMEM table reference is passed to payloadIonela Voinescu
The coreboot table address is passed as an argument when jumping to payload. With this change depthcharge is loaded and executed properly on urara. Change-Id: I230d474a91b8d38aff070aa4aac623b6c8f0809c Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Reviewed-on: http://review.coreboot.org/10460 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-06-08Remove empty lines at end of fileElyes HAOUAS
Used command line to remove empty lines at end of file: find . -type f -exec sed -i -e :a -e '/^\n*$/{$d;N;};/\n$/ba' {} \; Change-Id: I816ac9666b6dbb7c7e47843672f0d5cc499766a3 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: http://review.coreboot.org/10446 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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>
2015-05-20build system: use archives, not linker action to shorten command linesPatrick Georgi
Intermediate linking may distort linker behavior (in particular related to weak symbols). The idea is that archives are closer to 'just a list of object files', and ideally makes the linker more predictable. Using --whole-archive, the linker doesn't optimize out object files just because their symbols were already provided by weak versions. However it shouldn't be used for libgcc, because that one has some unexpected side-effects. Change-Id: Ie226c198a93bcdca2d82c02431c72108a1c6ea60 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10139 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
2015-04-22google/urara: use board ID information to set up hardwareIonela Voinescu
The hardware initialization is now split in basic initialization (MIPS and system PLL, system clock, SPIM, UART), and initialization of other hardware blocks (USB, I2C, ETH). The second part uses board ID information to select setup that is board specific (currently only I2C interface is selected through board ID). BRANCH=none BUG=chrome-os-partner:37593 TEST=tested on bring up board for both Urara and Concerto; to simulate the use of Concerto (I2C3) DIP SW17 was set to 0. it works with default settings on Urara Change-Id: Ic5bbf28ab42545a4fb2aa6fd30592a02ecc15cb5 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: f2b3db2e7f9fa898214f974ca34ea427196d2e4e Original-Change-Id: Iac9a082ad84444af1d9d9785a2d0cc3205140d15 Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Original-Reviewed-on: https://chromium-review.googlesource.com/257401 Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Original-Commit-Queue: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/9888 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-21Unify byte order macros and clrsetbitsJulius Werner
This patch removes quite a bit of code duplication between cpu_to_le32() and clrsetbits_le32() style macros on the different architectures. This also syncs those macros back up to the new write32(a, v) style IO accessor macros that are now used on ARM and ARM64. CQ-DEPEND=CL:254862 BRANCH=none BUG=chromium:444723 TEST=Compiled Cosmos, Daisy, Blaze, Falco, Pinky, Pit, Rambi, Ryu, Storm and Urara. Booted on Jerry. Tried to compare binary images... unfortunately something about the new macro notation makes the compiler evaluate it more efficiently (not recalculating the address between the read and the write), so this was of limited value. Change-Id: If8ab62912c952d68a67a0f71e82b038732cd1317 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: fd43bf446581bfb84bec4f2ebb56b5de95971c3b Original-Change-Id: I7d301b5bb5ac0db7f5ff39e3adc2b28a1f402a72 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/254866 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9838 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-21arch/mips: simplify cache operationsIonela Voinescu
Cache operations are simplified by removing assembly implementation and replacing it with simpler C code. BUG=chrome-os-partner:31438 TEST=tested on Pistachio bring up board; caches are properly invalidated; BRANCH=none Change-Id: I0f092660549c368e98c208ae0c991fe6f5a428d7 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: bf99849e75813cba865b15af9e110687816e61e4 Original-Change-Id: I965e7929718424f92f3556369d36a18ef67aa0d0 Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Original-Reviewed-on: https://chromium-review.googlesource.com/250792 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/9820 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-21urara: Identity map DRAM/SRAMAndrew Bresticker
Using identity_map(), map the DRAM/SRAM regions to themselves (which happens to be using KUSEG on urara). The bootblock (which still runs in KSEG0) sets up the identity mapping in bootblock_mmu_init() so that ROM/RAM stages can be loaded into the KUSEG address range. The stack and pre-RAM CBMEM console also remain in KSEG0 since we don't really care about their physical addresses. Also splitting CBFS cache to pre and post RAM, to allow for larger rambase images. BUG=chrome-os-partner:36258 BRANCH=none TEST=With the rest of coreboot and depthcharge patches applied: - booted urara into the kernel login prompt - from depthcharge CLI tried accessing memory below 0x100000 - observed the exception. Change-Id: If78f1c5c54d3587fe83e25c79698b2e9e41d3309 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 9668b440b35805e8ce442be62f67053cedcb205e Original-Change-Id: I187d02fa2ace08b9fb7a333c928e92c54465abc2 Original-Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/246694 Reviewed-on: http://review.coreboot.org/9816 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-21mips: Allow memory to be identity mapped in the TLBAndrew Bresticker
Introduce identity_map() function. It takes a memory range and identity maps it entirely in the TLB table, if possible. As a result the virtual and physical address ranges are the same. The function attempts to use as large of a page size as possible for each region in order to conserve TLB entries. BUG=chrome-os-partner:36258 BRANCH=none TEST=Build and boot on Pistachio with the rest of the patches applied. Change-Id: I4d781b04699e069a71c49a0c6ca15c7a6b42a468 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 234d32edfd201019b7a723316a79c932c62ce87e Original-Change-Id: If3e2392b19555cb6dbae8b5559c1b1e53a313637 Original-Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/246693 Reviewed-on: http://review.coreboot.org/9815 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-17arch/mips: Fix bug when performing cache operationsIonela Voinescu
Each type of cache might have different cache line size. Call the proper get_<*>cache_line function for each cache type. Fixes problem with get_L2cache_line which previously targeted L3 cache line in the config register, instead of L2 cache. TODO: add support for tertiary caches and have cache operations be called per CPU, not per architecture. BUG=chrome-os-partner:31438 TEST=tested on Pistachio bring up board; worked as expected; BRANCH=none Change-Id: I7de946cbd6bac716e99fe07cb0deb5aa76c84171 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 62e2803c6f2a3ad02dc88f50a4ae2ea00487e3f4 Original-Change-Id: I03071f24aacac1805cfd89e4f44b14ed1c1e984e Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Original-Reviewed-on: https://chromium-review.googlesource.com/241853 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/9731 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-15Kconfig: Fix incorrect CONFIG_STACK_SIZE values for X86 and ARM64Julius Werner
Commit 54229a7 (arm: Fix checkstack() to use correct stack size) didn't quite hit the mark. Due to the crazy way our Kconfig includes work, It accidentally set CONFIG_STACK_SIZE to 0 even on architectures that need it. This patch fixes the issue by moving everything back to a single entry in src/Kconfig, making sure we end up with the intended numbers on all architectures. BRANCH=None BUG=chrome-os-partner:34750 TEST=Built for Pinky, Urara, Falco and Ryu. Confirmed that the generated .config contained CONFIG_STACK_SIZE=0x0 for the former two, and CONFIG_STACK_SIZE=0x1000 for the latter. Original-Change-Id: Ib18561925aafe7c74e6c4f0b10b55000a785e144 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/236753 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> (cherry picked from commit c64b127e163f98162f3f7195b6ed09bd5a4b77c4) Signed-off-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I2c747b04760bc97f43523596640bfb15317e5730 Reviewed-on: http://review.coreboot.org/9696 Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com> Tested-by: build bot (Jenkins)
2015-04-14arm: Fix checkstack() to use correct stack sizeJulius Werner
checkstack() runs at the end of ramstage to warn about stack overflows, and it assumes that CONFIG_STACK_SIZE is always the size of the stack to check. This is only true for systems that bring up multiprocessing in ramstage and assign a separate stack for each core, like x86 and ARM64. Other architectures like ARM and MIPS (for now) don't touch secondary CPUs at all and currently don't look like they'll ever need to, so they generally stay on the same (SRAM-based) stack they have been on since their bootblock. This patch tries to model that difference by making these architectures explicitly set CONFIG_STACK_SIZE to zero, and using that as a cue to assume the whole (_estack - _stack) area in checkstack() instead. Also adds a BUG() to the stack overflow check, since that is currently just as non-fatal as the BIOS_ERR message (despite the incorrect "SYSTEM HALTED" output) but a little more easy to spot. Such a serious failure should not drown out in all the normal random pieces of lower case boot spam (also, I was intending to eventually have a look at assert() and BUG() to hopefully make them a little more useful/noticeable if I ever find the time for it). BRANCH=None BUG=None TEST=Booted Pinky, noticed it no longer complains about stack overflows. Built Falco, Ryu and Urara. Change-Id: I6826e0ec24201d4d83c5929b281828917bc9abf4 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 54229a725e8907b84a105c04ecea33b8f9b91dd4 Original-Change-Id: I49f70bb7ad192bd1c48e077802085dc5ecbfd58b Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/235894 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9610 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-14CBFS: Automate ROM image layout and remove hardcoded offsetsJulius Werner
Non-x86 boards currently need to hardcode the position of their CBFS master header in a Kconfig. This is very brittle because it is usually put in between the bootblock and the first CBFS entry, without any checks to guarantee that it won't overlap either of those. It is not fun to debug random failures that move and disappear with tiny alignment changes because someone decided to write "ORBC1112" over some part of your data section (in a way that is not visible in the symbolized .elf binaries, only in the final image). This patch seeks to prevent those issues and reduce the need for manual configuration by making the image layout a completely automated part of cbfstool. Since automated placement of the CBFS header means we can no longer hardcode its position into coreboot, this patch takes the existing x86 solution of placing a pointer to the header at the very end of the CBFS-managed section of the ROM and generalizes it to all architectures. This is now even possible with the read-only/read-write split in ChromeOS, since coreboot knows how large that section is from the CBFS_SIZE Kconfig (which is by default equal to ROM_SIZE, but can be changed on systems that place other data next to coreboot/CBFS in ROM). Also adds a feature to cbfstool that makes the -B (bootblock file name) argument on image creation optional, since we have recently found valid use cases for CBFS images that are not the first boot medium of the device (instead opened by an earlier bootloader that can already interpret CBFS) and therefore don't really need a bootblock. BRANCH=None BUG=None TEST=Built and booted on Veyron_Pinky, Nyan_Blaze and Falco. Change-Id: Ib715bb8db258e602991b34f994750a2d3e2d5adf Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: e9879c0fbd57f105254c54bacb3e592acdcad35c Original-Change-Id: Ifcc755326832755cfbccd6f0a12104cba28a20af Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/229975 Reviewed-on: http://review.coreboot.org/9620 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-14CBFS: Correct ROM_SIZE for ARM boards, use CBFS_SIZE for cbfstoolJulius Werner
Some projects (like ChromeOS) put more content than described by CBFS onto their image. For top-aligned images (read: x86), this has traditionally been achieved with a CBFS_SIZE Kconfig (which denotes the area actually managed by CBFS, as opposed to ROM_SIZE) that is used to calculate the CBFS entry start offset. On bottom-aligned boards, many define a fake (smaller) ROM_SIZE for only the CBFS part, which is not consistently done and can be an issue because ROM_SIZE is expected to be a power of two. This patch changes all non-x86 boards to describe their actual (physical) ROM size via one of the BOARD_ROMSIZE_KB_xxx options as a mainboard Kconfig select (which is the correct place to declare unchangeable physical properties of the board). It also changes the cbfstool create invocation to use CBFS_SIZE as the -s parameter for those architectures, which defaults to ROM_SIZE but gets overridden for special use cases like ChromeOS. This has the advantage that cbfstool has a consistent idea of where the area it is responsible for ends, which offers better bounds-checking and is needed for a subsequent fix. Also change the FMAP offset to default to right behind the (now consistently known) CBFS region for non-x86 boards, which has emerged as a de-facto standard on those architectures and allows us to reduce the amount of custom configuration. In the future, the nightmare that is ChromeOS's image build system could be redesigned to enforce this automatically, and also confirm that it doesn't overwrite any space used by CBFS (which is now consistently defined as the file size of coreboot.rom on non-x86). CQ-DEPEND=CL:231576,CL:231475 BRANCH=None BUG=chromium:422501 TEST=Built and booted on Veyron_Pinky. Change-Id: I89aa5b30e25679e074d4cb5eee4c08178892ada6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: e707c67c69599274b890d0686522880aa2e16d71 Original-Change-Id: I4fce5a56a8d72f4c4dd3a08c129025f1565351cc Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/229974 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9619 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-13arch/mips: provide proper cache primitivesIonela Voinescu
This provides the opportunity to remove the kludge of disabling caches altogether in the bootblock. [pg: originally, this commit also provided automatic cache management after loading stages, ie. flush dcache, so code ends up in icache. This is done differently in upstream, so it's left out here] BUG=chrome-os-partner:34127, chrome-os-partner:31438 TEST=with this fix romstage, ramstage and payload are executed properly BRANCH=none Change-Id: I568c68d02b2cd9c1c2c9c1495ba3343c82509ccc Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 95ab0f159cabf21fc100f371d451211e7d113761 Original-Change-Id: Iaf90b052073dd355ab9114e8dba9f5ef76188c94 Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Original-Reviewed-on: https://chromium-review.googlesource.com/232410 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9618 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-13mips: disable caches in bootblock startup codeVadim Bendebury
Until proper MIPS cache management is available it is necessary to disable data and instruction caches, otherwise code placed in memory stays in data cache and is not available for instruction fetched. BRANCH=none BUG=chrome-os-partner:31438,chrome-os-partner:34127 TEST=coreboot loading rombase and rambase now succeeds. Change-Id: I4147e1325edc0b9bb951cd7ce18d5f104f3eaec0 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 93d5bfa1d01fbbabbabef33a22287ceeea28b15b Original-Change-Id: Ib195ed6e5f08ccaa6bbe3325c2199171bfb63b88 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/232191 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9569 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-13urara: add support for DMA coherent memory areaIonela Voinescu
The information about the DMA memory area is further passed through the coreboot table to the payload. BUG=chrome-os-partner:31438 TEST=tested on Pistachio FPGA; DMA memory area was used to test the functionality of the DWC2 USB controller driver; behavior was as expected. BRANCH=none Change-Id: I658e32352bd5fab493ffe15ad9340e19d02fd133 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 0debc105b072a37e2a8ae4098a9634d841191d0a Original-Change-Id: Icf69835dc6a385a59d30092be4ac69bc80245336 Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com> Original-Reviewed-on: https://chromium-review.googlesource.com/235910 Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Original-Commit-Queue: Vadim Bendebury <vbendeb@chromium.org> Original-Tested-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://review.coreboot.org/9593 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-08timer: Add generic udelay() implementationAaron Durbin
Add GENERIC_UDELAY Kconfig option so that a generic udelay() implementation is provided utilizing the monotonic timer. That way each board/chipset doesn't need to duplicate the same udelay(). Additionally, assume that GENERIC_UDELAY implies init_timer() is not required. BUG=None BRANCH=None TEST=Built nyan, ryu, and rambi. May need help testing. Change-Id: I7f511a2324b5aa5d1b2959f4519be85a6a7360e8 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 1a85fbcad778933d13eaef545135abe7e4de46ed Original-Change-Id: Idd26de19eefc91ee3b0ceddfb1bc2152e19fd8ab Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/219719 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/9334 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-04-07mips: add c0 register access plumbingVadim Bendebury
C0 is a coprocessor register set defined in certain MIPS architectures. This patch adds macros necessary to access the registers and a couple of helper macros to access two particular registers needed in the next patch. The definitions come straight from arch/mips/include/asm/mipsregs.h in the 3.14 kernel tree. BRANCH=none BUG=chrome-os-partner:31438 TEST=the following patch demonstrates timer counter C0 register configuration and use. Change-Id: Ia5d52ffa75f2dd66d4cee3a4ed0af5122ccb2113 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: eb3d69eaf1561ca0b995720c24dafe2e6e22707d Original-Change-Id: Ia4b1da40ecc1a03cf1cba0c648d42cd189fbcf93 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/227887 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9336 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-07kconfig: drop intermittend forwarder filesStefan Reinauer
With kconfig understanding wildcards, we don't need Kconfig files that just include other Kconfig files anymore. Change-Id: I7584e675f78fcb4ff1fdb0731e340533c5bc040d Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/9298 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-04-06New mechanism to define SRAM/memory map with automatic bounds checkingJulius Werner
This patch creates a new mechanism to define the static memory layout (primarily in SRAM) for a given board, superseding the brittle mass of Kconfigs that we were using before. The core part is a memlayout.ld file in the mainboard directory (although boards are expected to just include the SoC default in most cases), which is the primary linker script for all stages (though not rmodules for now). It uses preprocessor macros from <memlayout.h> to form a different valid linker script for all stages while looking like a declarative, boilerplate-free map of memory addresses to the programmer. Linker asserts will automatically guarantee that the defined regions cannot overlap. Stages are defined with a maximum size that will be enforced by the linker. The file serves to both define and document the memory layout, so that the documentation cannot go missing or out of date. The mechanism is implemented for all boards in the ARM, ARM64 and MIPS architectures, and should be extended onto all systems using SRAM in the future. The CAR/XIP environment on x86 has very different requirements and the layout is generally not as static, so it will stay like it is and be unaffected by this patch (save for aligning some symbol names for consistency and sharing the new common ramstage linker script include). BUG=None TEST=Booted normally and in recovery mode, checked suspend/resume and the CBMEM console on Falco, Blaze (both normal and vboot2), Pinky and Pit. Compiled Ryu, Storm and Urara, manually compared the disassemblies with ToT and looked for red flags. Change-Id: Ifd2276417f2036cbe9c056f17e42f051bcd20e81 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: f1e2028e7ebceeb2d71ff366150a37564595e614 Original-Change-Id: I005506add4e8fcdb74db6d5e6cb2d4cb1bd3cda5 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/213370 Reviewed-on: http://review.coreboot.org/9283 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Tauner <stefan.tauner@gmx.at> Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-04-06build system: run linker scripts through the preprocessorPatrick Georgi
This allows combining and simplifying linker scripts. This is inspired by the commit listed below, but rewritten to match upstream, and split in smaller pieces to keep intent clear. Change-Id: Ie5c11bd8495a399561cefde2f3e8dd300f4feb98 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Based-On-Change-Id: I50af7dacf616e0f8ff4c43f4acc679089ad7022b Based-On-Signed-off-by: Julius Werner <jwerner@chromium.org> Based-On-Reviewed-on: https://chromium-review.googlesource.com/219170 Reviewed-on: http://review.coreboot.org/9303 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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