Commit graph

334 commits

Author SHA1 Message Date
Julius Werner
e9665959ed treewide: Remove "ERROR: "/"WARN: " prefixes from log messages
Now that the console system itself will clearly differentiate loglevels,
it is no longer necessary to explicitly add "ERROR: " in front of every
BIOS_ERR message to help it stand out more (and allow automated tooling
to grep for it). Removing all these extra .rodata characters should save
us a nice little amount of binary size.

This patch was created by running

  find src/ -type f -exec perl -0777 -pi -e 's/printk\(\s*BIOS_ERR,\s*"ERROR: /printk\(BIOS_ERR, "/gi' '{}' ';'

and doing some cursory review/cleanup on the result. Then doing the same
thing for BIOS_WARN with

  's/printk\(\s*BIOS_WARNING,\s*"WARN(ING)?: /printk\(BIOS_WARNING, "/gi'

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I3d0573acb23d2df53db6813cb1a5fc31b5357db8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61309
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Lance Zhao
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
2022-02-07 23:29:09 +00:00
Elyes HAOUAS
2abb826312 src: Remove unused <cbfs.h>
Found using:
diff <(git grep -l '<cbfs.h>' -- src/) <(git grep -l 'cbfs_allocator_t\|cbfs_load\|cbfs_ro_load\|cbfs_type_load\|cbfs_ro_type_load\|cbfs_unverified_area_load\|cbfs_map\|cbfs_ro_map\|cbfs_type_map\|cbfs_ro_type_map\|cbfs_unverified_area_map\|cbfs_alloc\|cbfs_ro_alloc\|cbfs_type_alloc\|cbfs_ro_type_alloc\|cbfs_unverified_area_alloc\|cbfs_cbmem_alloc\|cbfs_ro_cbmem_alloc\|cbfs_type_cbmem_alloc\|cbfs_ro_type_cbmem_alloc\|cbfs_unverified_area_cbmem_alloc\|cbfs_preload\|cbfs_unmap\|cbfs_prog_stage_load\|cbfs_get_size\|cbfs_ro_get_size\|cbfs_get_type\|cbfs_ro_get_type\|cbfs_type\|cbfs_file_exists\|cbfs_ro_file_exists\|mem_pool\|cbfs_cache\|cbfs_boot_device\|cbfs_boot_device_find_mcache\|cbfs_boot_device\|cbfs_get_boot_device\|cbfs_init_boot_device\|cbfs_boot_lookup\|cbfs_alloc\|cbfs_unverified_area_alloc\|cbfs_default_allocator_arg\|cbfs_default_allocator\|cbfs_cbmem_allocator\|cbfs_alloc\|cbfs_ro_alloc\|cbfs_type_alloc\|cbfs_ro_type_alloc\|cbfs_unverified_area_alloc\|cbfs_map\|cbfs_ro_map\|cbfs_type_map\|cbfs_ro_type_map\|cbfs_unverified_area_map\|cbfs_load\|cbfs_type_load\|cbfs_ro_load\|cbfs_ro_type_load\|cbfs_unverified_area_load\|cbfs_cbmem_alloc\|cbfs_ro_cbmem_alloc\|cbfs_type_cbmem_alloc\|cbfs_ro_type_cbmem_alloc\|cbfs_unverified_area_cbmem_alloc\|cbfs_get_size\|cbfs_ro_get_size\|cbfs_get_type\|cbfs_ro_get_type\|cbfs_file_exists\|cbfs_ro_file_exists\|cbfs_mdata\|cbfs_find_attr\|cbfs_file_hash' -- src/)|grep "<"

Change-Id: Ib4dca6da1eb66bbba5b6e94fd623f4fcfc2f0741
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61068
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2022-01-17 15:38:54 +00:00
Raul E Rangel
8928ae380b arch/{arm,arm64,ppc64,riscv}: Add noop cpu_relax
The cpu_relax method is defined for x86. This CL adds a no-op method so
that it can be used in common code.

BUG=b:179699789
TEST=none

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ifcb4546ceb2894eeb37589d0282b7e076d7a4747
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59546
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-11-25 10:42:17 +00:00
Martin Roth
0949e73906 src/acpi to src/lib: Fix spelling errors
These issues were found and fixed by codespell, a useful tool for
finding spelling errors.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I5b8ecdfe75d99028fee820a2034466a8ad1c5e63
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58080
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-10-05 18:06:39 +00:00
Julius Werner
e55d2e13e0 arch/arm64: Remove unnecessary interfaces
<clocks.h> and smp_processor_id() aren't used anywhere anymore. Get rid
of them.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I1a8c892b066e6ac0e7cec5316633d44165344e78
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57819
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
2021-10-01 00:02:06 +00:00
Julius Werner
965846fcd0 cbfs: Remove prog_locate() for payloads (SELF and FIT)
This patch removes the prog_locate() call for all instances of loading
payload formats (SELF and FIT), as the previous patch did for stages.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I582b37f36fe6f9f26975490a823e85b130ba49a2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49336
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-17 00:13:53 +00:00
Julius Werner
1de8708fe5 cbfs: Remove prog_locate() for stages and rmodules
This patch removes the prog_locate() step for stages and rmodules.
Instead, the stage and rmodule loading functions will now perform the
locate step directly together with the actual loading. The long-term
goal of this is to eliminate prog_locate() (and the rdev member in
struct prog that it fills) completely in order to make CBFS verification
code safer and its security guarantees easier to follow. prog_locate()
is the main remaining use case where a raw rdev of CBFS file data
"leaks" out of cbfs.c into other code, and that other code needs to
manually make sure that the contents of the rdev get verified during
loading. By eliminating this step and moving all code that directly
deals with file data into cbfs.c, we can concentrate the code that needs
to worry about file data hashing (and needs access to cbfs_private.h
APIs) into one file, making it easier to keep track of and reason about.

This patch is the first step of this move, later patches will do the
same for SELFs and other program types.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Ia600e55f77c2549a00e2606f09befc1f92594a3a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49335
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-16 21:45:34 +00:00
Elyes HAOUAS
ce66cd3e49 arm64/armv8: Set ARCH_ARMV8_EXTENSION depend on ARCH_ARM64
This will remove "ARCH_ARMV8_EXTENSION=0" from ".config" when unneeded.

Change-Id: Idd4ad67fb4a3efdb0864803f87c6b5f508fb4364
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49598
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-01-25 08:55:08 +00:00
Kyösti Mälkki
3b3dd84fb1 arch/arm: Replace .id section with build_info in CBFS
For arch/arm[64], the offsets to board identification strings and
CONFIG_ROM_SIZE inside .id were never really used; it was only a
convenience to have the strings appear near the start of image.

Add the same strings in an uncompressed file in CBFS.

Change-Id: I35d3312336e9c66d657d2ca619cf30fd79e18fd4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47602
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-12-17 06:25:25 +00:00
Kyösti Mälkki
254142a11d Drop many cases of .previous directive use
Since most assembly files are no longer concatenated together
but built separately, section changes with .previous at the
end of the files have become spurious.

TEST=BUILD_TIMELESS

Change-Id: I2970eed2b114a53475ba385eec4e97bb7ae7095c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47963
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2020-12-11 07:32:36 +00:00
Julius Werner
87feced195 sc7180: Enable bootblock compression
This patch enables bootblock compression on SC7180. In my tests, that
makes it boot roughly 10ms faster (which isn't much, but... might as
well take it).

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Ibbe06eeb05347cc77395681969e6eaf1598b4260
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45855
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-10-13 22:41:19 +00:00
Julius Werner
644a512e56 symbols: Change implementation details of DECLARE_OPTIONAL_REGION()
It seems that GCC's LTO doesn't like the way we implement
DECLARE_OPTIONAL_REGION(). This patch changes it so that rather than
having a normal DECLARE_REGION() in <symbols.h> and then an extra
DECLARE_OPTIONAL_REGION() in the C file using it, you just say
DECLARE_OPTIONAL_REGION() directly in <symbols.h> (in place and instead
of the usual DECLARE_REGION()). This basically looks the same way in the
resulting object file but somehow LTO seems to like it better.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I6096207b311d70c8e9956cd9406bec45be04a4a2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44791
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2020-08-27 22:11:17 +00:00
Elyes HAOUAS
c94b38ec13 src/arch: Drop unneeded empty lines
Change-Id: Ic86d2e6ad00cf190a2a728280f1a738486cb18c8
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44591
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-08-24 09:16:19 +00:00
Elyes HAOUAS
854782330c src: Remove unused 'include <stdint.h>
Found using:
diff <(git grep -l '#include <stdint.h>' -- src/) <(git grep -l 'int8_t\|int16_t\|int32_t\|int64_t\|intptr_t\|intmax_t\|s8\|u8\|s16\|u16\|s32\|u32\|s64\|u64\|INT8_MIN\|INT8_MAX\|INT16_MIN\|INT16_MAX\|INT32_MIN\|INT32_MAX\|INT64_MIN\|INT64_MAX\|INTMAX_MIN\|INTMAX_MAX' -- src/) |grep -v vendorcode |grep '<'

Change-Id: I5e14bf4887c7d2644a64f4d58c6d8763eb74d2ed
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41827
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-07-14 16:11:10 +00:00
Furquan Shaikh
46514c2b87 treewide: Add Kconfig variable MEMLAYOUT_LD_FILE
This change defines a Kconfig variable MEMLAYOUT_LD_FILE which allows
SoC/mainboard to provide a linker file for the platform. x86 already
provides a default memlayout.ld under src/arch/x86. With this new
Kconfig variable, it is possible for the SoC/mainboard code for x86 to
provide a custom linker file as well.

Makefile.inc is updated for all architectures to use this new Kconfig
variable instead of assuming memlayout.ld files under a certain
path. All non-x86 boards used memlayout.ld under mainboard
directory. However, a lot of these boards were simply including the
memlayout from SoC. So, this change also updates these mainboards and
SoCs to define the Kconfig as required.

BUG=b:155322763
TEST=Verified that abuild with --timeless option results in the same
coreboot.rom image for all boards.

Change-Id: I6a7f96643ed0519c93967ea2c3bcd881a5d6a4d6
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42292
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-13 06:49:23 +00:00
Elyes HAOUAS
0c154af217 src: Remove redundant includes
<types.h> is supposed to provide <commonlib/bsd/cb_err.h>,
<stdbool.h>,<stdint.h> and <stddef.h>. So remove those includes
each time when <types.h> is included.

Change-Id: I886f02255099f3005852a2e6095b21ca86a940ed
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41817
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2020-06-02 07:42:32 +00:00
Elyes HAOUAS
c4b70276ed src: Remove leading blank lines from SPDX header
Change-Id: I8a207e30a73d10fe67c0474ff11324ae99e2cec6
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41360
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-18 07:00:27 +00:00
Patrick Georgi
6b5bc77c9b treewide: Remove "this file is part of" lines
Stefan thinks they don't add value.

Command used:
sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool)

The exceptions are for:
 - crossgcc (patch file)
 - gcov (imported from gcc)
 - elf.h (imported from GNU's libc)
 - nvramtool (more complicated header)

The removed lines are:
-       fmt.Fprintln(f, "/* This file is part of the coreboot project. */")
-# This file is part of a set of unofficial pre-commit hooks available
-/* This file is part of coreboot */
-# This file is part of msrtool.
-/* This file is part of msrtool. */
- * This file is part of ncurses, designed to be appended after curses.h.in
-/* This file is part of pgtblgen. */
- * This file is part of the coreboot project.
- /* This file is part of the coreboot project. */
-#  This file is part of the coreboot project.
-# This file is part of the coreboot project.
-## This file is part of the coreboot project.
--- This file is part of the coreboot project.
-/* This file is part of the coreboot project */
-/* This file is part of the coreboot project. */
-;## This file is part of the coreboot project.
-# This file is part of the coreboot project. It originated in the
- * This file is part of the coreinfo project.
-## This file is part of the coreinfo project.
- * This file is part of the depthcharge project.
-/* This file is part of the depthcharge project. */
-/* This file is part of the ectool project. */
- * This file is part of the GNU C Library.
- * This file is part of the libpayload project.
-## This file is part of the libpayload project.
-/* This file is part of the Linux kernel. */
-## This file is part of the superiotool project.
-/* This file is part of the superiotool project */
-/* This file is part of uio_usbdebug */

Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-11 17:11:40 +00:00
Elyes HAOUAS
b7731574f4 src: Remove unneeded 'include <arch/cache.h>'
Change-Id: I6374bc2d397800d574c7a0cc44079c09394a0673
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37984
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-03-10 20:39:50 +00:00
Patrick Georgi
0a3d4e0ca0 src/arch/arm64: Convert to SPDX license header
This also drops individual copyright notices, all mentioned authors in
that part of the tree are already listed in AUTHORS.

Change-Id: Ic5eddc961d015328e5a90994b7963e7af83cddd3
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39279
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-03-06 07:47:33 +00:00
Nico Huber
cccb2d76c5 arch/arm64/Makefile.inc: Avoid # in variable definition
Interpretation if # starts a comment inside a variable definition varies
between GNU make versions. Use a wildcard to match the first # and use
`sed` instead of `grep | cut` to avoid unbalanced quoting chars.

Tested with GNU make 4.2.1 and 4.3. Both produce the same output as
4.2.1 did before the patch.

Change-Id: Ib7c4d7323e112968d3f14ea0590b7dabc57c9c45
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38794
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-02-12 20:07:04 +00:00
Julius Werner
98eeb96135 commonlib: Add commonlib/bsd
This patch creates a new commonlib/bsd subdirectory with a similar
purpose to the existing commonlib, with the difference that all files
under this subdirectory shall be licensed under the BSD-3-Clause license
(or compatible permissive license). The goal is to allow more code to be
shared with libpayload in the future.

Initially, I'm going to move a few files there that have already been
BSD-licensed in the existing commonlib. I am also exracting most
contents of the often-needed <commonlib/helpers.h> as long as they have
either been written by me (and are hereby relicensed) or have an
existing equivalent in BSD-licensed libpayload code. I am also
relicensing <commonlib/compression.h> (written by me) and
<commonlib/compiler.h> (same stuff exists in libpayload).

Finally, I am extracting the cb_err error code definitions from
<types.h> into a new BSD-licensed header so that future commonlib/bsd
code can build upon a common set of error values. I am making the
assumption here that the enum constants and the half-sentence fragments
of documentation next to them by themselves do not meet the threshold of
copyrightability.

Change-Id: I316cea70930f131e8e93d4218542ddb5ae4b63a2
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38420
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-01-28 06:36:13 +00:00
Elyes HAOUAS
0420e50b6b src/arch: Remove unused <stdlib.h>
Change-Id: I79f065703b5249ca9630b06de7142bc52675076e
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32820
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-19 05:57:07 +00:00
Julius Werner
51359d6c84 arm64: Print a char to UART early in exception handler
Over time our printk() seems to acquire more and more features... which
is nice, but it also makes it a little less robust when something goes
wrong. If the wrong global is trampled by some buffer overflow, it
suddenly doesn't print anymore. It would be nice to have at least some
way to tell that we triggered a real exception in that case.

With this patch, arm64 exceptions will print a '!' straight to the UART
before trying any of the more fancy printk() stuff. It's not much but it
should tell the difference between an exception and a hang and hopefully
help someone dig in the right direction sooner. This violates loglevels
(which is part of the point), but presumably when you have a fatal
exception you shouldn't care about that anymore.

Change-Id: I3b08ab86beaee55263786011caa5588d93bbc720
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37465
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-05 17:58:10 +00:00
Julius Werner
2e0bca011a arm64: Bump exception stack size to 2KB
To avoid trampling over interesting exception artifacts on the real
stack, our arm64 systems switch to a separate exception stack when
entering an exception handler. We don't want that to use up too much
SRAM so we just set it to 512 bytes. I mean it just prints a bunch of
registers, how much stack could it need, right?

Quite a bit it turns out. The whole vtxprintf() call stack goes pretty
deep, and aarch64 generally seems to be very generous with stack space.
Just the varargs handling seems to require 128 bytes for some reason,
and the other stuff adds up too. In the end the current implementation
takes 1008 bytes, so bump the exception stack size to 2K to make sure it
fits.

Change-Id: I910be4c5f6b29fae35eb53929c733a1bd4585377
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37464
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-12-05 17:58:05 +00:00
Julius Werner
bb345abbfc arm64: Correctly unmask asynchronous SError interrupts
Arm CPUs have always had an odd feature that allows you to mask not only
true interrupts, but also "external aborts" (memory bus errors from
outside the CPU). CPUs usually have all of these masked after reset,
which we quickly learned was a bad idea back when bringing up the first
arm32 systems in coreboot. Masking external aborts means that if any of
your firmware code does an illegal memory access, you will only see it
once the kernel comes up and unmasks the abort (not when it happens).

Therefore, we always unmask everything in early bootblock assembly code.
When arm64 came around, it had very similar masking bits and we did the
same there, thinking the issue resolved. Unfortunately Arm, in their
ceaseless struggle for more complexity, decided that having a single bit
to control this masking behavior is no longer enough: on AArch64, in
addition to the PSTATE.DAIF bits that are analogous to arm32's CPSR,
there are additional bits in SCR_EL3 that can override the PSTATE
setting for some but not all cases (makes perfect sense, I know...).
When aborts are unmasked in PSTATE, but SCR.EA is not set, then
synchronous external aborts will cause an exception while asynchronous
external aborts will not. It turns out we never intialize SCR in
coreboot and on RK3399 it comes up with all zeroes (even the reserved-1
bits, which is super weird). If you get an asynchronous external abort
in coreboot it will silently hide in the CPU until BL31 enables SCR.EA
before it has its own console handlers registered and silently hangs.

This patch resolves the issue by also initializing SCR to a known good
state early in the bootblock. It also cleans up some bit defintions and
slightly reworks the DAIF unmasking... it doesn't actually make that
much sense to unmask anything before our console and exception handlers
are up. The new code will mask everything until the exception handler is
installed and then unmask it, so that if there was a super early
external abort we could still see it. (Of course there are still dozens
of other processor exceptions that could happen which we have no way to
mask.)

Change-Id: I5266481a7aaf0b72aca8988accb671d92739af6f
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37463
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-12-05 17:57:58 +00:00
Julius Werner
55009af42c Change all clrsetbits_leXX() to clrsetbitsXX()
This patch changes all existing instances of clrsetbits_leXX() to the
new endian-independent clrsetbitsXX(), after double-checking that
they're all in SoC-specific code operating on CPU registers and not
actually trying to make an endian conversion.

This patch was created by running

 sed -i -e 's/\([cs][le][rt]bits\)_le\([136][624]\)/\1\2/g'

across the codebase and cleaning up formatting a bit.

Change-Id: I7fc3e736e5fe927da8960fdcd2aae607b62b5ff4
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37433
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-12-04 14:11:17 +00:00
Arthur Heymans
1b8df77ac1 arch/*/*/early_variables.h: drop unused files
Kill off NO_GLOBAL_MIGRATION finally!

Change-Id: Ieb7d9f5590b3a7dd1fd5c0ce2e51337332434dbd
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37054
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-30 16:11:11 +00:00
Arthur Heymans
c05b1a66b3 Kconfig: Drop the C_ENVIRONMENT_BOOTBLOCK symbol
The romcc bootblock will be deprecated soon and most platforms use
C_ENVIRONMENT_BOOTBLOCK already. This patch drops the
CONFIG_C_ENVIRONMENT_BOOTBLOCK symbol and adds CONFIG_ROMCC_BOOTBLOCK
where needed.

Change-Id: I773a76aade623303b7cd95ebe9b0411e5a7ecbaf
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37154
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
2019-11-25 09:17:38 +00:00
Patrick Georgi
0bb83469ed Kconfig: comply to Linux 5.3's Kconfig language rules
Kconfig became stricter on what it accepts, so accomodate before
updating to a new release.

Change-Id: I92a9e9bf0d557a7532ba533cd7776c48f2488f91
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37156
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2019-11-23 20:09:56 +00:00
Arthur Heymans
c4c5d85c22 lib/Kconfig: Remove RAMSTAGE_CBMEM_TOP_ARG
All targets now have the _cbmem_top_ptr symbol populated via calling
arguments or in the nvidia/tegra210 case worked around by populating
it with cbmem_top_chipset explicitly at the start of ramstage, so the
Kconfig guarding this behavior can be removed.

Change-Id: Ie7467629e58700e4d29f6e735840c22ed687f880
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36422
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Michael Niewöhner
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-10 11:46:29 +00:00
Arthur Heymans
879c9fc421 soc/nvidia/tegra210: Populate _cbmem_top_ptr
On this platform the ramstage is run on a different core so passing
cbmem_top via calling arguments is not an option. To work around this
populate _cbmem_top_ptr with cbmem_top_chipset which is also used in
romstage.

Change-Id: I8799c12705e944162c05fb7225ae21d32a2a882b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36557
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-04 11:40:12 +00:00
Arthur Heymans
d05f57cfcb arch/arm64: Pass cbmem_top to ramstage via calling argument
This solution is very generic and can in principle be implemented on
all arch/soc. Currently the old infrastructure to pass on information
from romstage to ramstage is left in place and will be removed in a
follow-up commit.

Nvidia Tegra will be handled in a separate patch because it has a
custom ramstage entry.

Instead trying to figure out which files can be removed from stages
and which cbmem_top implementations need with preprocessor, rename all
cbmem_top implementation to cbmem_top_romstage.

Mechanisms set in place to pass on information from rom- to ram-stage
will be replaced in a followup commit.

Change-Id: I86cdc5c2fac76797732a3a3398f50c4d1ff6647a
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36275
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-11-03 11:19:24 +00:00
Julius Werner
b3f24b4884 arm64: Uprev Arm TF and adjust to BL31 parameter changes
This patch uprevs the Arm Trusted Firmware submodule to the new upstream
master (commit 42cdeb930).

Arm Trusted Firmware unified a bunch of stuff related to BL31 handoff
parameters across platforms which involved changing a few names around.
This patch syncs coreboot back up with that. They also made header
changes that now allow us to directly include all the headers we need
(in a safer and cleaner way than before), so we can get rid of some
structure definitions that were duplicated. Since the version of entry
point info parameters we have been using has been deprecated in Trusted
Firmware, this patch switches to the new version 2 parameter format.

NOTE: This may or may not stop Cavium from booting with the current
pinned Trusted Firmware blob. Cavium maintainers are still evaluating
whether to fix that later or drop the platform entirely.

Tested on GOOGLE_KEVIN (rk3399).

Change-Id: I0ed32bce5585ce191736f0ff2e5a94a9d2b2cc28
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34676
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-09-14 05:01:16 +00:00
Kyösti Mälkki
6fdb223859 arch/x86: Refactor CAR_GLOBAL quirk for FSP1.0
These platforms return to romstage from FSP only after
already having torn CAR down. A copy of the entire CAR
region is available and discoverable via HOB.

Previously, CBMEM console detected on-the-fly that CAR
migration had happened and relocated cbmem_console_p
accoringlin with car_sync_var(). However, if the CAR_GLOBAL
pointing to another object inside CAR is a relative offset
instead, we have a more generic solution that can be used
with timestamps code as well.

Change-Id: Ica877b47e68d56189e9d998b5630019d4328a419
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35140
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-09 22:17:27 +00:00
Julius Werner
0a8da746c2 arm64: Rename arm_tf.c/h to bl31.c/h
This patch renames arm_tf.c and arm_tf.h to bl31.c and bl31.h,
respectively. That name is closer to the terminology used in most
functions related to Trusted Firmware, and it removes the annoying
auto-completion clash between arm64/arm_tf.c and arm64/armv8.

Change-Id: I2741e2bce9d079b1025f82ecb3bb78a02fe39ed5
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34677
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-08-30 10:37:17 +00:00
Arthur Heymans
792098c45e arch/arm64: Make ARM64 stages select ARCH_ARM64
Also don't define the default as this result in spurious lines in the
.config.

The only difference in config.h is on boards with the Nvidia tegra210
SOC that now select ARCH_ARM64, because its ramstage runs in that
mode. The resulting binary is identical however.

Change-Id: Iaa9cd902281e51f823717f6ea4c72e5736fefb31
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31315
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-08-29 20:47:27 +00:00
Martin Roth
96c075a359 AUTHORS: Move src/arch/arm64 copyrights into AUTHORS file
As discussed on the mailing list and voted upon, the coreboot project
is going to move the majority of copyrights out of the headers and into
an AUTHORS file.  This will happen a bit at a time, as we'll be unifying
license headers at the same time.

Additional changes in this patch:
- Make sure files say that they're part of the coreboot project
- Move descriptions below the license header

Note that the file include/arch/acpi.h is a fantastic example of why
moving to the authors file is needed.  Excluding the guard statements,
it has 8 lines of copyrights for 3 function declarations.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I334baab2b4311eb1bd9ce3f67f49a68e8b73630c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34606
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-08-26 19:20:00 +00:00
Asami Doi
06993ee729 lib: ramdetect: Register exception handlers for ARMv8
Register exception handlers to avoid a Synchronous External Abort
that is raised when you try to access a non-memory address on ARMv8.
An exception handler can jump over the faulting instruction.
This is the feature only for QEMU/AArch64.

Signed-off-by: Asami Doi <d0iasm.pub@gmail.com>
Change-Id: I09a306ca307ba4027d9758c3debc2e7c844c66b8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
2019-08-26 07:14:03 +00:00
Kyösti Mälkki
a4e8fb2afd arch/non-x86: Remove use of __PRE_RAM__
Change-Id: Id8918f40572497b068509b5d5a490de0435ad50b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34921
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-08-20 01:12:28 +00:00
Jacob Garber
0c4ed4bd7e arch, include, soc: Use common stdint.h
There are only minimal differences between the architecture specific
stdint.h implementations, so let's tidy them up and merge them together
into a single file. In particular,

- Use 'unsigned long' for uintptr_t. This was already the case for x86
  and riscv, while arm and mips used 'unsigned int', and arm64 and ppc64
  used 'unsigned long long'. This change allows using a single integer
  type for uintptr_t across all architectures, and brings it into
  consistency with the rest of the code base, which generally uses
  'unsigned long' for memory addresses anyway. This change required
  fixing several assumptions about integer types in the arm code.
- Use _Bool as the boolean type. This is a specialized boolean type that
  was introduced in C99, and is preferrable over hacking booleans
  using integers. romcc sadly does not support _Bool, so for that we
  stick with the old uint8_t.
- Drop the least and fast integer types. They aren't used
  anywhere in the code base and are an unnecessary maintenance burden.
  Using the standard fixed width types is essentially always better anyway.
- Drop the UINT64_C() macro. It also isn't used anywhere and doesn't
  provide anything that a (uint64_t) cast doesn't.
- Implement the rest of the MIN and MAX numerical limits.
- Use static assertions to check that the integer widths are correct.

Change-Id: I6b52f37793151041b7bdee9ec3708bfad69617b2
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34075
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2019-07-12 17:40:24 +00:00
Elyes HAOUAS
e2d152c118 arch: Add missing #include <commonlib/helpers.h>
ALIGN((a), b) and ALIGN_UP(a, b) needs 'helpers.h'

Change-Id: I029c7c5cbb19c7e69997b3d84f929cb61e8e2b23
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33657
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-06-21 16:04:06 +00:00
Julius Werner
b379f1964e fit: Refactor config node handling
This patch makes some minor refactoring to the way the FIT parser
handles config nodes. A lot of this code was written in the dawn age of
depthcharge when its device tree library wasn't as well-stocked yet, so
some of it can be rewritten nicer with more high-level primitives.
There's no point in storing both the string name and the actual FDT node
of a FIT image node separately, since the latter also contains the
former, so remove that. Also eliminate code for the case of not having
an FDT (which makes no sense), and move some more FDT validity/compat
checking into fit_update_compat() (mostly in anticipation of later
changes).

This patch was adapted from depthcharge's http://crosreview.com/1553456
with a couple of modifications specific to coreboot's custom FIT loading
code.

Change-Id: Ia79e0fd0e1159c4aca64c453b82a0379b133350d
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32870
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-06-21 09:21:01 +00:00
Marty E. Plummer
913d8b5e45 arm64: make comment match code
Change-Id: I37b8d5715cb6a32d4853e77098094cd5cffb9a4c
Signed-off-by: Marty E. Plummer <hanetzer@startmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33486
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-06-17 20:04:31 +00:00
Elyes HAOUAS
a172228b7a src/arch/arm64: Remove variable set but not used
Change-Id: I4fe5771dd1ebf3d2a981dab08e98f1c018d14133
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32888
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-05-21 09:30:00 +00:00
Elyes HAOUAS
cd4fe0f718 src: include <assert.h> when appropriate
Change-Id: Ib843eb7144b7dc2932931b9e8f3f1d816bcc1e1a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/26796
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: David Guckian
2019-04-23 10:01:36 +00:00
Elyes HAOUAS
20eaef024c src: Add missing include 'console.h'
Change-Id: Ie21c390ab04adb5b05d5f9760d227d2a175ccb56
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32122
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2019-04-23 10:00:39 +00:00
Elyes HAOUAS
a1e22b8192 src: Use 'include <string.h>' when appropriate
Drop 'include <string.h>' when it is not used and
add it when it is missing.
Also extra lines removed, or added just before local includes.

Change-Id: Iccac4dbaa2dd4144fc347af36ecfc9747da3de20
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31966
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>
2019-03-20 20:27:51 +00:00
Julius Werner
cd49cce7b7 coreboot: Replace all IS_ENABLED(CONFIG_XXX) with CONFIG(XXX)
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>
2019-03-08 08:33:24 +00:00
Kyösti Mälkki
3ee8b750f4 arch/io.h: Separate MMIO and PNP ops
Change-Id: Ie32f1d43168c277be46cdbd7fbfa2445d9899689
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31699
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-03-04 15:59:23 +00:00