Use the new fsp_hob_iterator_get_next_guid_extension function in
fsp_find_extension_hob_by_guid instead of iterating through the HOB list
in this function.
TEST=AMD_FSP_DMI_HOB is still found and the same type 17 DMI info is
printed on the console.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I4d4ce14c8a5494763de3f65ed049f98a768c40a5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69478
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Drop the find_resource_hob_by_guid implementation and use the new
fsp_hob_iterator_init and fsp_hob_iterator_get_next_guid_resource
functions in fsp_find_range_hob.
TEST=Mandolin still finds the TSEG range HOB and uses the correct TSEG
location.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I00786cbeea203fba195ddc953c3242be544a7d70
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69477
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Introduce iterator function to go through the HOBs that will be used in
follow-up commits both from the rest of the common FSP HOB access code
and from SoC-specific code that needs to access specific HOBs.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: If86dde2a9f41d0ca7941493a92f11b91a77e2ae0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69475
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Since the characters per line limit was increased from 80 to 96, some
line breaks can be removed to improve code readability.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I92aa3fec8c8caba143e418efc999ec4a7c5d93c4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69461
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
No need to call a function that just instantly returns.
It greatly enhances readability to just check before calling a funtion
and it also removes an extra argument.
Change-Id: I4d57c45ede520160ef615725c023b7e92289a995
Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68592
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This reverts commit 672bd9bee5.
Reason for revert: Gmeet resolution dropped. When system starts
Gmeet video call, it uses the hardware accelerated encoder as per
the expectation. But, as soon as another system connects to the call,
the immediate fallback observed from hardware to software encoder.
Due to this, Gmeet resolution dropped from 720p to 180p.
Currently, this issue observed on AlderLake-N SoC based fanless
platforms. This issue is not seen on fan based systems.
BUG=b:246535768,b:235254828
BRANCH=None
TEST=Built and tested on Alderlake-N systems. With this revert
Gmeet resolution drop not observed.
Change-Id: Idaeaeaed47be44166a7cba9a0a1fac50d2688e50
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68568
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Baieswara Reddy Sagili <baieswara.reddy.sagili@intel.com>
Reviewed-by: V Sowmya <v.sowmya@intel.com>
BRANCH=none
BUG=b:234776154
TEST=build and boot Nirwen UFS, copy ISH firmware to host
file system /lib/firmware/intel/adln_ish.bin
check "dmesg |grep ish", it should show:
ish-loader: ISH firmware intel/adlnrvp_ish.bin loaded
Signed-off-by: Meera Ravindranath <meera.ravindranath@intel.com>
Change-Id: I89782b0b7dde1fca0130472a38628e72dfd5c26c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68164
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Reka Norman <rekanorman@chromium.org>
The current IPU ES entry value is always set to true for ADL-N and
kernel picks the ES version of the main IPU FW even for the production
bootloader but loading is not successful due to the authentication
failure.
Alderlake-N silicon has the same CPU id for all the SKU's and
also the production binaries are backward compatible with ES parts.
This change removes the IPU ES support ACPI entry since the
kernel needs to load the production IPU main firmware on both the
ES/QS parts.
BUG=b:248249032
TEST=Verify the Camera functionality by enabling the IPU secure mode
on ADL-N variants with both ES/QS silicon.
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Change-Id: I75b222e6f2b1ccdc5b6c448eb60afff3c1da3a8b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67813
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Reka Norman <rekanorman@chromium.org>
On some platforms the HFSTS4 bit 19 does not indicate active PTT.
Instead of ME HFSTS4, use TXT FTIF register to check active TPM for
the current boot. Discrete TPM shall be deactivated when PTT is
enabled so this always should return true value of PTT state.
Leave the old method for backwards compatibility if TXT FTIF would not
be applicable for older microarchitectures.
Based on DOC #560297.
TEST=Check if PTT is detected as active on MSI PRO Z690-A DDR4 WIFI
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: I3a55c9f38f5bb94fb1186592446a28e675c1207c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63956
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Currently, the "loading FSP-S" timestamp is added in fsp_silicon_init().
However, most Intel platforms actually load FSP-S earlier than this, in
soc_fsp_load(). So the timestamp is added in the wrong place.
Add the timestamp in fsps_load() instead, after the load_done early
return so that it will only be added for the first call.
Before:
949:finished CSE firmware sync 961,833 (17,998)
17:starting LZ4 decompress (ignore for x86) 1,018,328 (56,495)
18:finished LZ4 decompress (ignore for x86) 1,018,797 (469)
30:device enumeration 1,035,096 (16,298)
971:loading FSP-S 1,048,082 (12,986)
954:calling FspSiliconInit 1,049,331 (1,249)
After:
949:finished CSE firmware sync 959,355 (16,370)
971:loading FSP-S 978,139 (18,784)
17:starting LZ4 decompress (ignore for x86) 1,015,796 (37,656)
18:finished LZ4 decompress (ignore for x86) 1,016,271 (475)
30:device enumeration 1,032,567 (16,295)
954:calling FspSiliconInit 1,046,867 (14,300)
BUG=b:239769975
TEST="loading FSP-S" is added in the right place on nivviks (see above).
Change-Id: Ib26cf96ae97766333fe75ae44381d4f7c6cc7b61
Signed-off-by: Reka Norman <rekanorman@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67334
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Add multiple fan support for dptf policies
BUG=b:235254828
BRANCH=None
TEST=Built and tested on Redrix system for two fans
Change-Id: I96ead90e3b805bd20de03e4bef4fa4b9fbaaaedd
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65611
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This patch implements EFI_PEI_MP_SERVICES_PPI structure definitions
with APIs that return mp_api_unsupported().
The reason behind this change is to fix an FSP issue where FSP assumes
ownership of the APs (Application Processors) upon passing a `NULL`
pointer to the CpuMpPpi FSP-S UPD.Hence, this patch implements
`MP_SERVICES_PPI_DEFAULT` config to fill EFI_PEI_MP_SERVICES_PPI with
`mp_api_unsupported` APIs.
Later this data structure can be passed to the CpuMpPpi UPD to avoid
APs from getting hijacked by FSP while coreboot decides to set
SkipMpInit UPD.
TEST=Able to build and boot Google/Taeko with this patch.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I31fcaa2aa633071b6d6bfa05dbe891ef87978d2c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66708
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
coreboot uses TianoCore interchangeably with EDK II, and whilst the
meaning is generally clear, it's not the payload it uses. EDK II is
commonly written as edk2.
coreboot builds edk2 directly from the edk2 repository. Whilst it
can build some components from edk2-platforms, the target is still
edk2.
[1] tianocore.org - "Welcome to TianoCore, the community supporting"
[2] tianocore.org - "EDK II is a modern, feature-rich, cross-platform
firmware development environment for the UEFI and UEFI Platform
Initialization (PI) specifications."
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I4de125d92ae38ff8dfd0c4c06806c2d2921945ab
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65820
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This adds SPDX identifiers to the remaining source files in the
drivers directory that don't already have them.
Signed-off-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Change-Id: I97f96de857515214069c3b77f3c781f7f0555c6e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66499
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
As per Intel Dynamic Tuning Spec revision 1.3.13, section 14.1.2 TBAT
_UID should match the _UID implemented for battery device ACPI object
for OS
_UID for TBAT is currently set to "TBAT" but should be 1.
Battery device is define at src/ec/google/chromeec/acpi/battery.asl
Setting _UID to 1 because right now ChromeOS is the only user
of DPTF driver
TEST: Build and boot brya0
Signed-off-by: Varshit B Pandya <varshit.b.pandya@intel.com>
Change-Id: I1e4474e59cf01f937fbd51e5b674a609f0c47625
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65605
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Fixes: 5315e96abf ("arch/x86/postcar: Use a separate stack for C execution")
Resolves:
https://mail.coreboot.org/hyperkitty/list/coreboot@coreboot.org/
thread/TGIWAKZKELJRAEMKJNYRJ55MX2CXYNCV/
Link: https://mail.coreboot.org/hyperkitty/list/coreboot@coreboot.org/
thread/2JC3GNJSGXUD6DRVUY7O2O3W6OM3E2MY/
5315e96abf broke platforms using FSP-M to tear down CAR. It was pushing
the value at '_estack' into %esp rather than the address '_estack'.
Change-Id: Ie1fc70bd60fe3a2519ffb71625a35630fa732ff6
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65716
Reviewed-by: Patrick Georgi <patrick@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Branding changes to unify and update Chrome OS to ChromeOS (removing the
space).
This CL also includes changing Chromium OS to ChromiumOS as well.
BUG=None
TEST=N/A
Change-Id: I39af9f1069b62747dbfeebdd62d85fabfa655dcd
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65479
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
CPUID_RAPTORLAKE_P_Q0 is ES. Add it to generate is_es = 1 in ACPI
BUG=b:229134437
BRANCH=firmware-brya-14505.B
TEST=Booted to OS on adlrvp + rpl silicon
Signed-off-by: zhixingma <zhixing.ma@intel.com>
Change-Id: I67d70dc7e916a4818869aef86e7e642b66ea5dae
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65118
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
There are efforts to have bootflows that do not follow a traditional
bootblock-romstage-postcar-ramstage model. As part of that CBMEM
initialisation hooks will need to move from romstage to bootblock.
The interface towards platforms and drivers will change to use one of
CBMEM_CREATION_HOOK() or CBMEM_READY_HOOK(). Former will only be called
in the first stage with CBMEM available.
Change-Id: Ie24bf4e818ca69f539196c3a814f3c52d4103d7e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63375
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This patch fixes a potential corner case scenario where the value of
CONFIG_DEFAULT_CONSOLE_LOGLEVEL is less than `BIOS_SPEW` hence, coreboot
is unable to redirect FSP serial messages over UART.
Rather than passing hard coded `BIOS_SPEW` for the FSP debug handler,
this patch now calls get_log_level() function to pass the supported log
level while printing FSP serial msg.
BUG=b:225544587
TEST=Able to build and boot taeko. Also, able to see FSP debug log with
CONFIG_DEFAULT_CONSOLE_LOGLEVEL=7.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I8a18101f5c3004252205387bde28590c72e05b9d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64460
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
CPUID_RAPTORLAKE_P_J0 is ES. Add it to generate is_es = 1 in ACPI
Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Change-Id: Ib8d57f7fb0b3d15bc4bcdeae47bfbdde17e13118
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64000
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
When fwupd Retimer firmware update is enabled, it needs to
differentiate the Type-C port NDA and USB/DP/TBT/USB4 DA scenarios.
This change adds support to query devices attachment. If DA, it
deasserts the Retimer power and promptly returns -1 accordingly without
impacting the flow of Retimer firmware update under NDA. Additionally,
this patch deasserts the Retimer power during error conditions.
BUG=b:212235056, 224923449, 211790542
TEST=Validated Retimer firmware update under NDA and TBT3 docks
enumeration on Type-C ports under DA.
Change-Id: I5392d0d3a947dbf172cadfe03fc708f6e2e87210
Signed-off-by: John Zhao <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63848
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Add PROP method under \_SB.DPTF.TPWR scope which will return static
worst case rest of platform power in miliWatts.
This value is static, which has to configured from devicetree of
overridetree for each platform
BUG=b:205928013
TEST=Build, boot brya0 and dump SSDT to check PROP method
Scope (\_SB)
{
Device (DPTF)
{
Device (TPWR)
{
Method (PROP, 0, Serialized)
{
Return (XXXX)
}
}
}
}
Signed-off-by: Varshit B Pandya <varshit.b.pandya@intel.com>
Change-Id: I1415d2a9eb55cfadc3a7b41b53ecbec657002759
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63697
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Commit 3ba6f8cdf (drivers/intel/fsp2_0: Add native implementation for
FSP Debug Handler) implements a native FSP debug handler.
However, coreboot still can't control when to redirect FSP debug
output to the serial console, i.e., at present, integrating a FSP debug
binary is enough to output FSP serial messages irrespective of whether
user is intended to see FSP debug log.
coreboot needs additional mechanism to control FSP debug binary to
redirect debug messages over serial port. This patch introduces a
config `FSP_ENABLE_SERIAL_DEBUG` to control the FSP debug output, user
to enable this config from site-local config file in case like to override
the default FSP serial redirection behaviour in more controlled way from
coreboot.
There could be scenarios as below:
Scenario 1: coreboot release image integrated with the FSP debug
binaries, is capable of redirecting to the serial console, but coreboot
decides to override the config as below to skip FSP debug output
redirection to the serial port.
`#`FSP Serial console disabled by default (do not remove)
`#`CONFIG_FSP_ENABLE_SERIAL_DEBUG is not set
Scenario 2: For coreboot serial image with FSP debug binaries integrated
but coreboot decides to skip FSP debug output redirection to the serial
port.
`#`FSP Serial console disabled by default (do not remove)
`#`CONFIG_FSP_ENABLE_SERIAL_DEBUG is not set
CONFIG_CONSOLE_SERIAL=y
CONFIG_CONSOLE_SERIAL_115200=y
CONFIG_UART_DEBUG=y
CONFIG_UART_FOR_CONSOLE=0
Scenario 3: The final image could be a coreboot serial image with FSP
serial redirection enabled to output to the serial port.
CONFIG_FSP_ENABLE_SERIAL_DEBUG=y
CONFIG_CONSOLE_SERIAL=y
CONFIG_CONSOLE_SERIAL_115200=y
CONFIG_UART_DEBUG=y
CONFIG_UART_FOR_CONSOLE=0
BUG=b:227151510
TEST=Able to build and boot google/redrix with all scenarios between #1--#3
and able to meet the expectation as mentioned above.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I0b008ca9d4f40bfa6a989a6fd655c234f91fde65
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63166
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
The hob finding functions are never looped over so there is no point
for the 'next' inside their name.
Change-Id: I18e452d313612ba14edda479d43f2797f6c84034
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63204
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This patch enriches coreboot FSP2.0 driver to extract the FSP timestamp
from FPDT (Firmware Performance Data Table) and display right after
FSP-S exits (from `fsp_silicon_init()` function), based on SoC user
selects the required `DISPLAY_FSP_TIMESTAMPS` config.
The prerequisite to this implementation is to have FSP binary built with
`PcdFspPerformanceEnable` PCD set to `TRUE` to allow FSP to populate
the FPDT HOB.
BUG=b:216635831
TEST=Able to dump FSP performance data with DISPLAY_FSP_TIMESTAMPS
Kconfig selected and met the FSP prerequisites.
+--------------------------------------------------+
|------ FSP Performance Timestamp Table Dump ------|
+--------------------------------------------------+
| Perf-ID Timestamp(ms) String/GUID |
+--------------------------------------------------+
0 460253 SEC/52c05b14-0b98-496c-bc3b04b50211d680
50 460263 PEI/52c05b14-0b98-496c-bc3b04b50211d680
40 460274 PreMem/52c05b14-0b98-496c-bc3b04b50211d680
1 495803 9b3ada4f-ae56-4c24-8deaf03b7558ae50
2 508959 9b3ada4f-ae56-4c24-8deaf03b7558ae50
1 515253 6141e486-7543-4f1a-a579ff532ed78e75
2 525453 6141e486-7543-4f1a-a579ff532ed78e75
1 532059 baeb5bee-5b33-480a-8ab7b29c85e7ceab
2 546806 baeb5bee-5b33-480a-8ab7b29c85e7ceab
1 553302 1b04374d-fa9c-420f-ac62fee6d45e8443
2 563859 1b04374d-fa9c-420f-ac62fee6d45e8443
1 569955 88c17e54-ebfe-4531-a992581029f58126
2 575753 88c17e54-ebfe-4531-a992581029f58126
1 582099 a8499e65-a6f6-48b0-96db45c266030d83
50f0 599599 unknown name/3112356f-cc77-4e82-86d53e25ee8192a4
50f1 716649 unknown name/3112356f-cc77-4e82-86d53e25ee8192a4
2 728507 a8499e65-a6f6-48b0-96db45c266030d83
1 734755 9e1cc850-6731-4848-87526673c7005eee
....
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ia1b7f6b98bafeec0afe843f0f78c99c2f34f50b3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62942
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Add a stack in .bss for C execution. This will make it easier to move
the setup of MTRRs in C code.
Change-Id: I67cbc988051036b1a0519cec9ed614acede31fd7
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54298
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This patch implements coreboot native debug handler to manage the FSP
event messages.
`FSP Event Handlers` feature introduced in FSP to generate event
messages to aid in the debugging of firmware issues. This eliminates
the need for FSP to directly write debug messages to the UART and FSP
might not need to know the board related UART port configuration.
Instead FSP signals the bootloader to inform it of a new debug message.
This allows the coreboot to provide board specific methods of reporting
debug messages, example: legacy UART or LPSS UART etc.
This implementation has several advantages as:
1. FSP relies on XIP `DebugLib` driver even while printing FSP-S debug
messages, hence, without ROM being cached, post `romstage` would
results into sluggish boot with FSP debug enabled.
This patch utilities coreboot native debug implementation which is
XIP during FSP-M and relocatable to DRAM based resource for FSP-S.
2. This patch simplifies the FSP DebugLib implementation and remove the
need to have serial port library. Instead coreboot `printk` can be
used for display FSP serial messages. Additionally, unifies the debug
library between coreboot and FSP.
3. This patch is also useful to get debug prints even with FSP
non-serial image (refer to `Note` below) as FSP PEIMs are now
leveraging coreboot debug library instead FSP `NULL` DebugLib
reference for release build.
4. Can optimize the FSP binary size by removing the DebugLib dependency
from most of FSP PEIMs, for example: on Alder Lake FSP-M debug binary
size is reduced by ~100KB+ and FSP-S debug library size is also
reduced by ~300KB+ (FSP-S debug and release binary size is exactly
same with this code changes). The total savings is ~400KB for each
FSP copy, and in case of Chrome AP firmware with 3 copies, the total
savings would be 400KB * 3 = ~1.2MB.
Note: Need to modify FSP source code to remove `MDEPKG_NDEBUG` as
compilation flag for release build and generate FSP binary with non-NULL
FSP debug wrapper module injected (to allow FSP event handler to execute
even with FSP non-serial image) in the final FSP.fd.
BUG=b:225544587
TEST=Able to build and boot brya. Also, verified the FSP debug log is
exactly same before and with this code change.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I1018e67d70492b18c76531f9e78d3b58fa435cd4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63007
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
FSP 2.3 spec introduced new version of NV storage HOB
FSP_NON_VOLATILE_STORAGE_HOB2. This new HOB addresses the limitation of
FSP_NON_VOLATILE_STORAGE_HOB which can support data length
upto 64KB. FSP_NON_VOLATILE_STORAGE_HOB2 allows >64KB of NVS data to be
stored by specifying a pointer to the NVS data.
FSP_NON_VOLATILE_STORAGE_HOB HOB is deprecated
from FSP 2.3 onwards and is maintained for backward compatibility only.
This patch implements the parsing method for
FSP_NON_VOLATILE_STORAGE_HOB2 HOB structure .The HOB list is first
searched for FSP_NON_VOLATILE_STORAGE_HOB2. If not found we continue
to search for FSP_NON_VOLATILE_STORAGE_HOB HOB.
BUG=b:200113959
TEST=Verified on sapphire rapids and meteor lake FSP platform that
introduces FSP_NON_VOLATILE_STORAGE_HOB2 for retrieving MRC cached data.
Signed-off-by: Anil Kumar <anil.kumar.k@intel.com>
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I27647e9ac1a4902256b3f1c34b60e1f0b787a06e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59638
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
