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2015-10-17armv7: Word-sized/half-word-sized memory operations for 32/16 bit read/writePaul Kocialkowski
Some registers only allow word-sized or half-word-sized operations and will cause a data fault when accessed with byte-sized operations. However, the compiler may or may not break such an operation into smaller (byte-sized) chunks. Thus, we need to reliably perform word-sized operations for 32 bit read/write and half-word-sized operations for 16 bit read/write. This is particularly the case on the rk3288 SRAM registers, where the watchdog tombstone is stored. Moving to GCC 5.2.0 introduced a change of strategy in the compiler, where a 32 bit read would be broken into byte-sized chunks, which caused a data fault when accessing the watchdog tombstone register. The definitions for byte-sized memory operations are also adapted to stay consistent with the rest. Change-Id: I1fb3fc139e0a813acf9d70f14386a9603c9f9ede Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Reviewed-on: http://review.coreboot.org/11698 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-10-16arch/x86/smbios: Add Crucial DIMM manufacturer IDTimothy Pearson
Change-Id: I975142351c0c033f9dc44670dcf819d296896921 Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: http://review.coreboot.org/11934 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins)
2015-10-16arch/x86/boot/smbios: Add SPD IDs for Kingston and CorsairTimothy Pearson
Change-Id: I6a32b69d3b75d7d086dc7f8ea1e195473399f406 Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: http://review.coreboot.org/11933 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins)
2015-10-14x86: add standalone verstage supportAaron Durbin
To support x86 verstage one needs a working buffer for vboot. That buffer resides in the cache-as-ram region which persists across verstage and romstage. The current assumption is that verstage brings cache-as-ram up and romstage tears cache-as-ram down. The timestamp, cbmem console, and the vboot work buffer are persistent through in both romstage and verstage. The vboot work buffer as well as the cbmem console are permanently destroyed once cache-as-ram is torn down. The timestamp region is migrated. When verstage is enabled the assumption is that _start is the romstage entry point. It's currently expected that the chipset provides the entry point to romstage when verstage is employed. Also, the car_var_*() APIs use direct access when in verstage since its expected verstage does not tear down cache-as-ram. Lastly, supporting files were added to verstage-y such that an x86 verstage will build and link. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built and booted glados using separate verstage. Change-Id: I097aa0b92f3bb95275205a3fd8b21362c67b97aa Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11822 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-10-11vboot: remove remnants of VBOOT_STUBAaron Durbin
For vboot1 there was an rmodule that was loaded and ran to do the firmware verification. That's no longer used so remove the last vestiges of VBOOT_STUB. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built glados. Change-Id: I6b41544874bef4d84d0f548640114285cad3474e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11817 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-10-08arch/x86/bootblock: Do not include non-code files in bootblock.SAlexandru Gagniuc
Since we now have more freedom in the bootblock linking step it no longer makes sense to use a monolithic bootblock.S. Code segments must still be included as the order in bootblock.S determines code flow. However, non-code flow related assembly stubs don't need to be directly included in bootblock.S Change-Id: I08e86e92d82bd2138194ed42652f268b0764aa54 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/11792 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-10-08arch/x86: Link walkcbfs.S instead on including it in bootblock.SAlexandru Gagniuc
The code flow doesn't fall through to walkcbfs, as it does in the rest of bootblock.S. Instead, walkcbfs is called (albeit via a jmp). The linker cannot know this when walkcbfs.S is included directly. When we use a CAR bootblock, we lose several hundred bytes because walkcbfs is not garbage-collected, yet it isn't used. This problem is solved by assembling walkcbfs.S separately, and linking it. Change-Id: Ib3a976db09b9ff270b7677cb4f9db80b0b025e22 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/11785 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-10-08arch/x86/bootblock: Link in object files selected with bootblock-yAlexandru Gagniuc
As part of preparing for systems with non-memory-mapped media, we want to be able to call into C code. This change allows us to link C code directly into the bootblock. The steps of going from bootblock main() to CAR setup to C code will be implemented in subsequent patches. Note that a few files selected with bootblock-y will now be compiled for the bootblock as well, but since we enabled garbage collection, they will not be included in the final binary. Change-Id: I5ca6dcaf176f5469c6a3bb925859399123493bc6 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/11783 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2015-10-08arch/x86/Makefile.inc: Simplify rule for bootblock.debugAlexandru Gagniuc
The only difference between the ifeq/else/endif guarded rules is the linker flags specific to x86. Add those flags to LDFLAGS_bootblock, and only use one rule for bootblock.debug. Change-Id: I986a93e0418f05fb273512d7efe0573052493332 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/11782 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-10-07x86/bootblock: Use LDFLAGS_bootblock to enable garbage collectionAlexandru Gagniuc
The x86 bootblock linking is a mess. The bootblock is treated in a very special manner, and never received the update to link-time garbage collection. On newer x86 platforms, the boot media is no longer memory-mapped. That means we need to do a lot more setup in the bootblock. ROMCC is unsuitable for this task, and walkcbfs only works on memory-mapped CBFS. We need to revise the x86 bootflow for this new case. The approach this patch series takes is to perform CAR setup in the bootblock, and load the following stage (either romstage or verstage) from the boot media. This approach is not new, but has been done on our ARM ports for years. Since we will be adding .c files to the bootblock, it is prudent to use link-time garbage collection. This is also consistent to how we do things on other architectures. Unification FTW! Change-Id: I16b78456df56e0053984a9aca9367e2542adfdc9 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/11781 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-09-30x86: prepare cache-as-ram to allow multiple stagesAaron Durbin
In order to do a verification of romstage on x86 one needs to run verstage which verifies romstage (and the memory init code). However, x86 doesn't have SRAM like every other modern SoC so managing the cache-as-ram region is especially critical. First move all of the "shared" objects to the beginning of the .car.data section. This change then ensures that each stage using car.ld to link has the same consistent view of the addresses of these fixed-sized objects in cache-as-ram. The CAR_GLOBALs can be unique per stage. However, these variables are expected to have a value of zero at the start of each stage. In order to allow a stage to provide those semantics outside of the initial cache-as-arm setup routine add _car_global_start and _car_global_end symbols. Those symbols can be used to clear the CAR_GLOBALs for that stage. Note that the timestamp region can't be moved out similarly to the pre-ram cbmem console because the object storage of the timestamp cache is used *after* cache-as-ram is torn down to indicate if the cache should be used or not. Therefore, that timestamp needs to migrated to ram. A logic change in src/lib/timestamp.c could alleviate this requirement, but that task wasn't tackled in this patch. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built and booted glados. Change-Id: I15e9f6b0c632ee5a2369da0709535d6cb0d94f61 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11740 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-30x86: provide common macro for linking early stagesAaron Durbin
In order to support verstage on x86 one needs to link verstage like romstage since it needs all the cache-as-ram goodies. Therefore, provide a macro that one can invoke that provides the necessary recipes for linking that particular stage in such an environment. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built and booted glados. Change-Id: I12f4872df09fff6715829de68fc374e230350c2e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11739 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-29Makefile: Replace the way to test if a string is emptyzbao
The output of command below, # i386-elf-nm build/cbfs/fallback/romstage_null.offenders | \ grep -q "" ; echo $? has different result on MacOS, OS X Mavericks, which outputs 0. On linux, it outputs 1. I assume it is misleading to search an empty string in a empty string. Change it to testing if the string is empty. Change-Id: Ie4b8fe1fb26df092e2985937251a49feadc61eb0 Signed-off-by: Zheng Bao <zheng.bao@amd.com> Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/11600 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-28arm64: mmu: Prevent CPU prefetch instructions from device memoryJimmy Huang
Set XN bit of block upper attribute to device memory in mmu. CPU may speculatively prefetch instructions from device memory, but the IO subsystem of some implementation may not support this operation. Set this attribute to device memory mmu entries can prevent CPU from prefetching device memory. BRANCH=none BUG=none TEST=build and booted to kernel on oak-rev3 with dcm enabled. Change-Id: I52ac7d7c84220624aaf6a48d64b9110d7afeb293 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 7b01a4157cb046a5e75ea7625060a602e7a63c3c Original-Change-Id: Id535e990a23b6c89123b5a4e64d7ed21eebed607 Original-Signed-off-by: Jimmy Huang <jimmy.huang@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/302301 Original-Commit-Ready: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/11722 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-23RISCV: modify arch_prog_run to handle payloads correctly.Ronald G. Minnich
Unlike the other stages, the payload requires virtual memory to be set up and also a privelege level change. Change-Id: Ibbe2a55f7719d917f121a53a17c6d90e6b2ab3d1 Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: http://review.coreboot.org/11699 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2015-09-22coreboot: introduce commonlibAaron Durbin
Instead of reaching into src/include and re-writing code allow for cleaner code sharing within coreboot and its utilities. The additional thing needed at this point is for the utilities to provide a printk() declaration within a <console/console.h> file. That way code which uses printk() can than be mapped properly to verbosity of utility parameters. Change-Id: I9e46a279569733336bc0a018aed96bc924c07cdd Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11592 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-09-16riscv-virtual-memory: move page tables into virtual address spaceThaminda Edirisooriya
If we use a linux payload/any payload that wants to manage virtual memory, and the payload is a supervisor (thus requiring virtual addressing before being started), we need to make sure that the page table is mapped into the virtual address space. Move the start address of the tables so the payload can manage virtual memory. Change-Id: I1d99e46f38a38a163fb1c7c517b1abca80cde0dc Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11621 Tested-by: build bot (Jenkins)
2015-09-16riscv-memlayout: fix existing memlayout issues, add sbi interfaceThaminda Edirisooriya
Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-09-16x86: remove double link step for romstageAaron Durbin
Now that cbfstool supports XIP for romstage utilize it. This removes the double link steps with the cbfstool locate and add-stage sandwich. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built and booted on glados. Change-Id: I1ec555f523a94dd4b15fe8186cbe530520c622c0 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11670 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-15riscv-trap-handling: Add functionality, prevent stack corruptionThaminda Edirisooriya
Trap handling code was bugged in that it loaded in the wrong stack pointer, overwriting the space the processor uses to talk to its host for doing device requests. Fix this issue, as well as add support for handling misaligned loads the same way we handle misaligned stores. Change-Id: I68ba3a114b7167b3212bb0bed181a7595f0b97d8 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11620 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-09-10riscv-trap-handling: Add implementation for trap calls in riscvThaminda Edirisooriya
RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-09-10riscv-virtual-memory: Add virtual memory setupThaminda Edirisooriya
Execution in supervisor level code in RISCV requires early setup of virtual memory. Add initialization calls in src/arch/riscv/virtual_memory.c to implement the required page table setup, and helper functions to use when jumping to the payload correctly in riscv. Change-Id: I46e080e0ee8dc13277d567dcd4bf0f61a4507b76 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11369 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-09-09x86: link ramstage the same way regardless of RELOCATABLE_RAMSTAGEAaron Durbin
Previously there were 2 paths in linking ramstage. One was used for RELOCATABLE_RAMSTAGE while the other was fixed location. Now that rmodtool can handle multiple secitons for a single proram segment there's no need for linking ramstage using lib/rmodule.ld. That also means true rmodules don't have symbols required for ramstage purposes so fix memlayout.h. Lastly add default rules for creating rmod files from the known file names and locations. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built rambi. Inspected ramstage.debug as well as rmodules created during the build. Change-Id: I98d249036c27cb4847512ab8bca5ea7b02ce04bd Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11524 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Patrick Georgi <pgeorgi@google.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>
2015-09-09x86: link romstage and ramstage with 1 fileAaron Durbin
To reduce file clutter merge romstage.ld and ramstage.ld into a single memlayout.ld. The naming is consistent with other architectures and chipsets for their linker script names. The cache-as-ram linking rules are put into a separate file such that other rules can be applied for future verstage support. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built rambi and dmp/vortex86ex. Change-Id: I1e8982a6a28027566ddd42a71b7e24e2397e68d2 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11521 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09rmodule: use program.ld for linkingAaron Durbin
Bring rmodule linking into the common linking method. The __rmodule_entry symbol was removed while using a more common _start symbol. The rmodtool will honor the entry point found within the ELF header. Add ENV_RMODULE so that one can distinguish the environment when generating linker scripts for rmodules. Lastly, directly use program.ld for the rmodule.ld linker script. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built rambi and analyzed the relocatable ramstage, sipi_vector, and smm rmodules. Change-Id: Iaa499eb229d8171272add9ee6d27cff75e7534ac Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11517 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09x86: link romstage like the other architecturesAaron Durbin
All the other architectures are using the memlayout for linking romstage. Use that same method on x86 as well for consistency. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built a myriad of boards. Analyzed readelf output. Change-Id: I016666c4b01410df112e588c2949e3fc64540c2e Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11510 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09x86: link ramstage like the other architecturesAaron Durbin
All the other architectures are using the memlayout for linking ramstage. The last piece to align x86 is to use arch/header.ld and the macros within memlayout.h to automaticaly generate the necessary linker script. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built a myriad of boards. Analyzed readelf output. Change-Id: I012c9b88c178b43bf6a6dde0bab821e066728139 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11508 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09linking: lay the groundwork for a unified linking approachAaron Durbin
Though coreboot started as x86 only, the current approach to x86 linking is out of the norm with respect to other architectures. To start alleviating that the way ramstage is linked is partially unified. A new file, program.ld, was added to provide a common way to link stages by deferring to per-stage architectural overrides. The previous ramstage.ld is no longer required. Note that this change doesn't handle RELOCATABLE_RAMSTAGE because that is handled by rmodule.ld. Future convergence can be achieved, but for the time being that's being left out. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built a myriad of boards. Change-Id: I5d689bfa7e0e9aff3a148178515ef241b5f70661 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11507 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-09-09x86: provide minimum alignment for romstageAaron Durbin
The current way the XIP address of romstage is calculated is by doing a 'cbfstool locate' using a bin file of romstage linked at address 0. That address is then used for re-linking romstage at the address spit out by cbfstool. Currently, the linker actually sets minimum alignment on the text sections as 32 bytes, but it doesn't actually honor that value. Instead, provide a minimum alignment for romstage so as not to fight the linker. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built asus/kfsn4-dre. Confirmed ROMSTAGE_BASE == gdtptr. Change-Id: Id6ec65d257df9ede78c720b0d7d4b56acfbb3f15 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11588 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09x86: remove unused sections from romstage.ldAaron Durbin
Now that the only source of ELF sections for romstage are from directly included .inc files or ROMCC generated inc files the subsection globs can be removed. i.e. Remove .rom.data.* and .rom.text.* listings. Lastly, put the .rom.data section directly after the .rom.text. They are by definition read-only and they are generated from the same place. BUG=chrome-os-partner:44827 BRANCH=None TEST=Spot checked !ROMCC and ROMCC boards. Confirmed only .rom.text .rom.data sections exist. Change-Id: Id17cf95c943103de006c5f3f21a625838ab49929 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11505 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09x86: add romstage.S to bind program flow and orderingAaron Durbin
The build system was previously determining the flow of the romstage code by the order of files added to the crt0s make variable. Those files were then concatenated together, and the resulting file was added to the build dependencies for romstage proper. Now romstage.S is added that can be built using the default object file rules. The generated romstage.inc is pulled in by way of an #include in the newly added romstage.S. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built vortex, rambi, and some asus boards. compared readelf -e output. Change-Id: Ib1168f9541eaf96651c52d03dc0f60e2489a77bd Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11504 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09x86: don't create MAINBOARDDIR/romstage.inc for !ROMCC boardsAaron Durbin
Previously, the x86 romstage build process was unconditionally creating a romstage.inc and adding it to crt0s. This step is inherently not necessary in the !ROMCC case becaue the romstage.inc was created by the compiler outputting assembler. That means MAINBOARDDIR/romstage.c is truly a C environment that requires some sort of assembler stub to call into (cache_as_ram.inc from the chipset dirs). Therefore, remove this processing. The result is that MAINBOARDDIR/romstage.c can use the normal build steps in creating an object and linking. The layout of romstage.elf will change but that's only from a symbol perspective. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built multitude of boards. Compared readelf -e output. Change-Id: I9b8079caaaa55e3ae20d3db4c9b8be04cdc41ab7 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11503 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09x86: bootblock: remove linking and program flow from build systemAaron Durbin
The build system was previously determining the flow and linking scripts bootblock code by the order of files added to the bootblock_inc bootblock-y variables.Those files were then concatenated together and built by a myriad of make rules. Now bootblock.S and bootblock.ld is added so that bootblock can be built and linked using the default build rules. CHIPSET_BOOTBLOCK_INCLUDE is introduced in order to allow the chipset code to place include files in the path of the bootblock program -- a replacement for the chipset_bootblock_inc make variable. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built vortex, rambi, and some asus boards. Change-Id: Ida4571cbe6eed65e77ade98b8d9ad056353c53f9 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11495 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-07Drop "See file CREDITS..." commentStefan Reinauer
coreboot has no CREDITS file. Change-Id: Iaa4686979ba1385b00ad1dbb6ea91e58f5014384 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/11514 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-05symbols: add '_' to pci_drivers and cpu_drivers symbolsAaron Durbin
In order to prepare for more unification of the linker scripts prefix pci_drivers, epci_drivers, cpu_drivers, and ecpu_drivers with an underscore. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built different boards includes ones w/ and w/o relocatable ramstage. Change-Id: I8918b38db3b754332e8d8506b424f3c6b3e06af8 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11506 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-09-04x86: remove cpu_incs as romstage Make variableAaron Durbin
When building up which files to include in romstage there were both 'cpu_incs' and 'cpu_incs-y' which were used to generate crt0.S. Remove the former to settle on cpu_incs-y as the way to be included. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built rambi. No include file changes. Change-Id: I8dc0631f8253c21c670f2f02928225ed5b869ce6 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11494 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-08-31timestamp: add tick frequency to exported tableAaron Durbin
Add the timestamp tick frequency within the timestamp table so the cbmem utility doesn't try to figure it out on its own. Those paths still exist for x86 systems which don't provide tsc_freq_mhz(). All other non-x86 systems use the monotonic timer which has a 1us granularity or 1MHz. One of the main reasons is that Linux is reporting /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq as the true turbo frequency on turbo enables machines. This change also fixes the p-state values honored in cpufreq for turbo machines in that turbo p-pstates were reported as 100MHz greater than nominal. BUG=chrome-os-partner:44669 BRANCH=firmware-strago-7287.B TEST=Built and booted on glados. Confirmed table frequency honored. Change-Id: I763fe2d9a7b01d0ef5556e5abff36032062f5801 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11470 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-08-31armv7/arm64: remove timestamp.cAaron Durbin
The src/lib/timestamp.c already has an implementation using timer_monotonic_get() for timestamp_get(). Use that instead of duplicating the logic. BUG=chrome-os-partner:44669 BRANCH=None TEST=None Change-Id: If17be86143f217445bd64d67ceee4355fa482d39 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11468 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-08-28arm64: xcompile: Add support for A53 erratum 843419Julius Werner
This patch adds support to enable a linker workaround to a hardware erratum on some early Cortex-A53 revisions. Since the linker option was added very recently, we use xcompile to test whether the toolchain supports it first. It is also guarded by a Kconfig since only a few ARM64 SoCs will need this and it incurs a performance penalty. BRANCH=none BUG=none TEST=Turned it on or off for Smaug and confirmed that it (dis)appeared in verbose make output accordingly. Change-Id: I01c9642d3cf489134645f0db6f79f1c788ddb00d Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: 57128785760c4dfa32d6e6d764756443a9323cb7 Original-Change-Id: Ia5dd124f484e38460d75fb864304e7e8b18d16b7 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/294745 Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11403 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-08-28arm64: Fix 'verstage-objs: command not found' errorYidi Lin
Fix following compilation error. LINK cbfs/fallback/verstage.debug /bin/sh: verstage-objs: command not found /usr/x86_64-pc-linux-gnu/aarch64-cros-linux-gnu/binutils-bin/2.24/ld.bfd.real: warning: cannot find entry symbol stage_entry; defaulting to 00000000000d7000 BRANCH=chromeos-2015.07 BUG=none TEST=emerge-oak coreboot Change-Id: I30e4c43625b2d1d076f24e8c2639ce951839661b Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: 2a8936cdf34d315f580819df682335b2998f044f Original-Change-Id: I9afd57a5a868a348dff2c66cad0a8a09cdb2e911 Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/292557 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11402 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-08-28arm64: declare do_dcsw_op as functionJimmy Huang
do_dcsw_op is coded as a label, it's possible that linker will place do_dcsw_op on unaligned address. To avoid this situation, we declare do_dcsw_op as a function. Also explicitly set the 2nd argument of ENTRY_WITH_ALIGN(name, bits) to 2. do_dcsw_op: cbz x3, exit c103d: b40003e3 cbz x3, c10b9 <exit> mov x10, xzr c1041: aa1f03ea mov x10, xzr adr x14, dcsw_loop_table // compute inner loop address BRANCH=none BUG=none TEST=build and check do_dcsw_op in elf file Change-Id: Ieb5f4188d6126ac9f6ddb0bfcc67452f79de94ad Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: 4ee26b76089fab82cf4fb9b21c9f15b29e57b453 Original-Change-Id: Id331e8ecab7ea8782e97c10b13e8810955747a51 Original-Signed-off-by: Jimmy Huang <jimmy.huang@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/293660 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Commit-Queue: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Reviewed-on: http://review.coreboot.org/11395 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-08-26riscv-trap-handling: Add preliminary trap handling for riscvThaminda Edirisooriya
RISCV requires a trap handler at the machine stage to deal with misaligned loads/stores, as well as to deal with calls that a linux payload will make in its setup. Put required assembly for jumping into and out of a trap here to be set up by the bootblock in a later commit. Change-Id: Ibf6b18e477aaa1c415a31dbeffa50a2470a7ab2e Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11367 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins)
2015-08-25x86: Get rid of empty loadable segment warningMartin Roth
When the check for global symbols in romstage happens, if everything is good, a warning appears, telling us that the segment is empty. While the empty segment is good, the warning is distracting: "BFD: build/cbfs/fallback/romstage_null.debug: warning: Empty loadable segment detected, is this intentional ?" This change hides that particular warning, but shouldn't hide any other output from objcopy. Change-Id: If22489280712d02a61c3ee5e0cb2a53db87d6082 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: http://review.coreboot.org/11302 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins)
2015-08-14acpi: 64bit fixesStefan Reinauer
Change-Id: I5d0c95af7d35115b5ac4141489caceef4ee1c8bb Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/11088 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-08-13x86: parameterize asl_template for CBFS inclusionAaron Durbin
The asl_template previously unconditionally included dsdt.aml. However, COMPILE_IN_DSDT=y results in the dsdt.aml being linked directly into ramstage. Thus the information is duplicated. The inclusion of this file unconditionally throws some errors as certain assets need to be included in CBFS. However, as there isn't fine-grained ordering control in how files are added fixed resource requirements for other assets collide result in failure to build. To remedy both things, provide a 2nd argument to asl_template which defaults to 'y' for CBFS addition. In the COMPILE_IN_DSDT=y case pass 'n' so that dsdt.aml is no longer added. BUG=chrome-os-partner:43419 BRANCH=None TEST=For glados: Built with COMPILE_IN_DSDT=y. dsdt.aml not included. Built with COMPILE_IN_DSDT=n. dsdt.aml was included. Original-Change-Id: I4767e5be2915c1732251fe415017f30314c5efc9 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/289840 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Change-Id: Id1828627ba0a034eb05b2fe23be76e19f3040444 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11166 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins)
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>
2015-08-09riscv-spike: support for Spike emulation of riscvThaminda Edirisooriya
Spike support: QEMU RISCV is broken, and the maintainers at Berkeley are working on it, but at the moment spike is the only way to test on riscv. Add support for spike console output for debugging. Privileged ISA: Update to privileged ISA in RISCV (machine, supervisor, hypervisor, user modes) broke exisitng RISCV asm, and bootblock.S was updated to match the new spec. Clean old assembly [pg: things build with gcc 4.9 now, but don't expect them to work. Hardcoding register names into the assembler language may not be the smartest idea of the RISCV folks.] Change-Id: Ie2c109d3c26712c207512f74f28ce1a925e6e181 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11078 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-08-09acpi: Align FACS to 64 bytesPatrick Georgi
The spec states (5.2.10): "The BIOS aligns the FACS on a 64-byte boundary anywhere within the system's memory address space." Change-Id: Ie9415e505525dbdd418028d4954018c829921a18 Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Found-by: fwts 15.08 Reviewed-on: http://review.coreboot.org/11141 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-08-04x86: Make sure boot device is mapped below 4GStefan Reinauer
On x86-64 the current way of calculating the base address of the boot device (SPI flash) gets an unwanted sign extension, making it live somewhere at the end of 64bit address space. Enforce rom_base to be at the upper end of the 4G address space. Change-Id: Ia81e82094d3c51f6c10e02b4b0df2f3e1519d39e Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/11121 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)