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Furquan Shaikh d47946e750 acpi: Generate power resource name instead of default "PRIC" 
This change uses a static 8-bit counter in
`acpi_device_add_power_res()` to generate the name of power resource
object rather using a default name "PRIC". This makes it easier to
identify which power resource Linux kernel logs are referring to. If
more than 256 power resources are used in the system, then the counter
will wrap around to 0. However, 256 seems to be a large enough number
for the power resource count.

TEST=Verified that Power Resources are named as expected:
```
dmesg | grep ACPI | grep PR
[    0.550921] ACPI: Power Resource [PR00] (on)
[    0.869960] ACPI: Power Resource [PR01] (on)
[    1.013973] ACPI: Power Resource [PR02] (on)
```

No new ACPI errors are seen in dmesg on brya.

Change-Id: Ia18f7177b03821ce0f8c989ae5d258f2f83517a5
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57650
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-09-16 06:07:15 +00:00
3rdparty Update vboot submodule to upstream main 2021-09-15 23:58:03 +00:00
configs configs/config.google_meep_cros: don't select ADD_FSP_BINARIES 2021-09-04 18:33:29 +00:00
Documentation Doc/Intel: Remove out-of-date documentation 2021-09-15 22:43:44 +00:00
LICENSES treewide: Remove trailing whitespace 2021-02-17 17:30:05 +00:00
payloads payloads/external/tianocore: Add build argument for 4G Decode 2021-09-08 07:19:10 +00:00
src acpi: Generate power resource name instead of default "PRIC" 2021-09-16 06:07:15 +00:00
tests tests: Add lib/cbfs-lookup-test test case 2021-09-14 23:35:38 +00:00
util util/sconfig: Update static.c to include boot/coreboot_tables.h 2021-09-16 00:12:28 +00:00
.checkpatch.conf lint: checkpatch: Only exclude specific src/vendorcode/ subdirectories 2021-04-06 16:04:41 +00:00
.clang-format
.editorconfig
.gitignore .gitignore: Ignore .test/.dependencies globally 2020-10-31 18:21:36 +00:00
.gitmodules .gitmodules: Update intel-microcode submodule to track branch=main 2021-06-09 17:20:50 +00:00
.gitreview
AUTHORS AUTHORS, util/: Drop individual copyright notices 2020-05-09 21:21:32 +00:00
COPYING
gnat.adc treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
MAINTAINERS MAINTAINERS: Add myself 2021-09-06 19:11:58 +00:00
Makefile util/kconfig: Uprev to Linux 5.13's kconfig 2021-07-13 20:28:14 +00:00
Makefile.inc build system: Deduplicate symbols in objdump 2021-07-23 15:06:56 +00:00
README.md
toolchain.inc toolchain.inc: copy architecture specific CFLAGS to GCC_ADAFLAGS 2021-07-01 09:43:54 +00:00

README.md

coreboot README

coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload.

With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required.

coreboot was formerly known as LinuxBIOS.

Payloads

After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot.

See https://www.coreboot.org/Payloads for a list of supported payloads.

Supported Hardware

coreboot supports a wide range of chipsets, devices, and mainboards.

For details please consult:

Build Requirements

  • make
  • gcc / g++ Because Linux distribution compilers tend to use lots of patches. coreboot does lots of "unusual" things in its build system, some of which break due to those patches, sometimes by gcc aborting, sometimes - and that's worse - by generating broken object code. Two options: use our toolchain (eg. make crosstools-i386) or enable the ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).
  • iasl (for targets with ACPI support)
  • pkg-config
  • libssl-dev (openssl)

Optional:

  • doxygen (for generating/viewing documentation)
  • gdb (for better debugging facilities on some targets)
  • ncurses (for make menuconfig and make nconfig)
  • flex and bison (for regenerating parsers)

Building coreboot

Please consult https://www.coreboot.org/Build_HOWTO for details.

Testing coreboot Without Modifying Your Hardware

If you want to test coreboot without any risks before you really decide to use it on your hardware, you can use the QEMU system emulator to run coreboot virtually in QEMU.

Please see https://www.coreboot.org/QEMU for details.

Website and Mailing List

Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:

https://www.coreboot.org

You can contact us directly on the coreboot mailing list:

https://www.coreboot.org/Mailinglist

Copyright and License

The copyright on coreboot is owned by quite a large number of individual developers and companies. Please check the individual source files for details.

coreboot is licensed under the terms of the GNU General Public License (GPL). Some files are licensed under the "GPL (version 2, or any later version)", and some files are licensed under the "GPL, version 2". For some parts, which were derived from other projects, other (GPL-compatible) licenses may apply. Please check the individual source files for details.

This makes the resulting coreboot images licensed under the GPL, version 2.