The patch that introduced the selection of software connection manager,
CB:64561 - 060df17f1d (soc/intel/alderlake/acpi: Add Kconfig options for
SCM and FCM) added a default to enable the software configuration
manager directly in the choice.
This leads to warnings when running make menuconfig:
src/soc/intel/alderlake/Kconfig:439:
warning: defaults for choice values not supported
src/soc/intel/meteorlake/Kconfig:337:
warning: defaults for choice values not supported
src/soc/intel/tigerlake/Kconfig:299:
warning: defaults for choice values not supported
I'm not sure why the Kconfig linter didn't catch this, but this
issue is currently breaking the build for me. This patch fixes
it so that instead of setting the default directly, a new Kconfig
value is selected that then sets the default correctly.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I674046a93af8f7c2f3003900804deefa89dae295
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71776
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
A mainboard port needs to:
- select `CONFIG_MAINBOARD_HAS_EARLY_LIBGFXINIT'
- implement the Ada package `GMA.Mainboard' with a single function
`ports' that returns a list of ports to be probed for displays.
- set the desired `GFX_GMA_DEFAULT_MMIO' IO memory address to use
in romstage (and ramstage) for the graphic device.
BUG=b:252792591
BRANCH=firmware-brya-14505.B
TEST=libgfxinit compiles in romstage.
libgfxinit successfully executes in romstage and ramstage using
the requested MMIO setting on skolas.
Change-Id: I3c2101de10dc5df54fe873e43bbe0f1c4dccff44
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70276
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Software Connection Manager doesn't work with Linux 5.13 or later,
resulting in TBT ports timing out. Not advertising this results
in Firmware Connection Manager being used and TBT works
correctly.
Add Kconfig options to chose between SCM (Software Connection
Manager) and FCM (Firmware Connection Manager). FCM is primary, as
it's more compatible save for ChromeOS devices as ChromeOS uses
SCM.
Linux patch:
torvalds/linux@c6da62a
c6da62a219d028de10f2e22e93a34c7ee2b88d03
Tested with StarBook Mk VI (i7-1260P).
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: Iac31d37c0873f41f7b14e1051fe214466d1ebdd8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64561
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Increase the default linear framebuffer max height/width for desktops
so that native display resolution works properly on 2160p and 1440p
ultrawide displays.
TEST=build/boot google/fizz, verify libgfxinit display init works
properly on 3440x1440p and 3840x2160p displays.
Change-Id: I95a1f1275a4faea195b73997c648023119807958
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70369
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Unlike gcc, a clang build will fail when only a comment is used to
indicate that the fallthough is intended. To fix the clang build, use
__fallthrough instead. This will fix the build errors introduced by
commit f45c7671d9 ("Set x86_64 as supported architecture for clang")
that enabled clang builds for a case that uses yabel to run the VBIOS.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I4ed337025adeb833f352d198fc0f13b5e1c209c4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70889
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
This patch provides helper functions to read or write a register via the
MDIO bus. They can be used from drivers to easily access registers on
the MDIO bus.
Change-Id: I293d93435d27269a071b4b9b94a1b55307c575a7
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69611
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch extends the available device paths with a new device 'mdio'.
MDIO is the 'Management Data Input/Output' called interface which is
used to access an Ethernet PHY behind a MAC to change settings. The real
payload data path is not handled by this interface.
To address the PHY correctly on the MDIO bus, there is a 5 bit address
needed, which often can be configured via pins on the mainboard.
Therefore, the new introduced device has an 'addr' field to define its
address. If one wants to use a MDIO device in devicetree, the syntax is
straight forward (example):
device mdio 0x2 on end
As the MDIO interface is driven by the MAC, most likely this MDIO device
will be hooked in as a child device of the (PCI attached) MAC device.
With the new introduced ops_mdio a new interface is added to provide an
API for read and write access over MDIO.
Change-Id: I6691f92c4233bc30afc9029840b06f74bb1eb4b2
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69382
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add pcie_find_dsn() to detect and match PCIe device serial
number. In addition, vendor ID is matched when provided.
Change-Id: I54b6dc42c8da47cd7b4447ab23a6a21562c7618
Signed-off-by: Jonathan Zhang <jonzhang@meta.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54510
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
This option is not working so don't advertise it.
Change-Id: I910162756a567289b2484a5445360a3197ae848c
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69506
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
The function pci_scan_bus had 3 post codes in it:
0x24 - beginning
0x25 - middle
0x55 - end
I got rid of the middle postcode and used 0x25 for the code signifying
the end of the function. I don't think all three are needed.
0x24 & 0x25 postcodes are currently also used in intel cache-as-ram
code. Those postcodes should be adjusted to avoid conflicting.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I19c9d5e256505b64234919a99f73a71efbbfdae3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69201
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
It is no longer necessary to explicitly add "ERROR: "/"WARNING: " in
front of every BIOS_ERR/BIOS_WARN message.
Change-Id: I22ee6ae15c3d3a848853c5460b3b3c1795adf2f5
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69405
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Currently, we're building support for all memory types into every board,
and letting the linker remove anything that isn't needed. This is okay,
but it'd be nice to be able to build in just what's actually needed.
This change adds options to specify both what is used and what is not.
By doing it that way, the default values don't change, but platforms can
start removing support for memory types that are not needed. When all
platforms (SoCs, CPUs and/or Northbridge chips) specify what memory
types they support, the defaults on the options to use a particular
memory type can be set to no, and the options not to use a memory type
can be removed.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I07c98a702e0d67c5ad7bd9b8a4ff24c9288ab569
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68992
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
add functions to check whether a device is enabled pci
device or a pci device on a specific bus number.
TEST: compile and qemu run successfully
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Change-Id: I3257c8404017372f6cdd9f6cf9453502447343a0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68101
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
use is_enabled_cpu() on cycles over device list to check
whether the current device is enabled cpu.
TEST: compile test and qemu run successfully with coreinfo
payload
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Change-Id: If64bd18f006b6f5fecef4f606c1df7d3a4d42883
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67797
Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Add function defs and prototypes of functions checking whether
a device is {a cpu,an enabled cpu}
TEST: compile test and qemu executed successfully with
coreinfo payload
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Change-Id: Iabc0e59d604ae4572921518a8dad47dc3d149f81
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67502
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Most of these changes are suggested by clang-format(13.0-54) tool on
Debian testing.
Change-Id: I9bf5f516db4f12ffe1e9a714c7a8ae179c12b149
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64780
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Refer to PCI Express Base rev6.0 v1.0, 4.2.7 Link Training and Status
State Rules, Lane Error Status is normal to record the error when link
training. To make sure Lane Error Status is correct in OS runtime,
add a Kconfig PCIEXP_LANE_ERR_STAT_CLEAR that clears the PCIe lane error
status register at the end of PCIe link training.
Test=On Crater Lake, lspci -vvv shows
bb:01.0 PCI bridge: Intel Corporation Device 352a (rev 03)
(prog-if 00 [Normal decode])
Capabilities: [a30 v1] Secondary PCI Express
LnkCtl3: LnkEquIntrruptEn- PerformEqu-
LaneErrStat: LaneErr at lane: 0
Signed-off-by: Wilson Chou <Wilson.Chou@quantatw.com>
Change-Id: I6344223636409d8fc25e365a6375fc81e69f41a5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67264
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Add the missing spaces to two log message, like the one below.
WARNING: Device PCI: 03:00.0 requests a BAR with34 bits of address space, which coreboot is notconfigured to hand out, truncating to 29 bits
Change-Id: If933d8fb0db5b58ff12f043cc73172a3f6ffc624
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67370
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
The top-down allocation feature was merged prematurely before
platforms that don't report their resources correctly were fixed.
Let's turn it off by default.
Change-Id: I982e6d7355b9e689de10357d6c16ed718705270e
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67328
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
This reverts commit 117e436115.
Depends on top-down allocation to keep the behavior to place
hot-plug reservations above 4G. The latter was merged prema-
turely, though.
Change-Id: I5721cb84b29fc42240dff94f49a94461d88e7fbc
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67329
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
We currently have two competing mechanisms to limit the placement of
resources:
1. the explicit `.limit` field of a resource, and
2. the IORESOURCE_ABOVE_4G flag.
This makes the resource allocator unnecessarily complex. Ideally, we
would always reduce the `.limit` field if we want to "pin" a specific
resource below 4G. However, as that's not done across the tree yet,
we will use the _absence_ of the IORESOURCE_ABOVE_4G flag as a hint
to implicitly lower the `limit` of a resource. In this patch, this
is done inside the effective_limit() function that hides the flag
from the rest of the allocator.
To automatically place resources above 4G if their limit allows it,
we have to allocate from top down. Hence, we disable the prompt for
RESOURCE_ALLOCATION_TOP_DOWN if resources above 4G are requested.
One implication of the changes is that we act differently when a
cold-plugged device reports a prefetchable resource with 32-bit
limit. Before this change, we would fail to allocate the resource.
After this change, it forces everything on the same root port below
the 4G line.
A possible solution to get completely rid of the IORESOURCE_ABOVE_4G
flag would be rules to place resources of certain devices below 4G.
For instance, the primary VGA device and storage and HID devices
could be made available to a payload that can only address 32 bits.
For now, effective_limit() provides us enough abstraction as if the
`limit` would be the only variable to consider. With this, we get
rid of all the special handling of above 4G resources during phase 2
of the allocator. Which saves us about 20% of the code :D
Change-Id: I4c7fcd1f5146f6cc287bd3aa5582da55bc5d6955
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65413
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The `IORESOURCE_ABOVE_4G` flag was only explicitly set for our dummy
device that reserves resources behind a hotplug port. The current re-
source allocator implicitly extends this to all devices below the port,
including real ones. Let's make that explicit, so future changes to the
allocator can't break this rule.
Change-Id: Id4c90b60682cf5c8949cde25362d286625b3e953
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66719
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Add option to resource allocator v4 that restores the top-down
allocation approach at the domain level.
This makes it easier to handle 64-bit resources natively. With
the top-down approach, resources that can be placed either above
or below 4G would be placed above, to save precious space below
the 4G boundary.
Change-Id: Iaf463d3e6b37d52e46761d8e210034fded58a8a4
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41957
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Some devices require that several bytes are written with a single I2C
write command. Extend the i2c_bus interface functions and add both, read
and write for more than one byte at a defined byte offset.
Change-Id: I0eec2e1d4185170f02b4ab35aa6546dc69569303
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67098
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
It seems pass 1 and 2 were inconsistent. The first would account for
resources with a limit of 0 even though the second can't assign anything
for them.
Change-Id: I86fb8edc8d4b3c9310517e07f29f73a6b859a7c4
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65402
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
If we have a PCIe root port without `ops_pci` or without
`get_ltr_max_latencies`, the parent device wouldn't be PCI.
Hence, check for a PCI path early.
Change-Id: I358cb6756750bb10d0a23ab7133b917bfa25988b
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66845
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
As the frequency field in the SMBIOS type 17 table is deprecated,
we need to provide the maximum and configured speed in MT/s. Add
a method to convert from frequency to MT/s using a lookup table.
BUG=b:239000826
TEST=Build and verify with other patches in train
Change-Id: I0402b33a667f7d72918365a6a79b13c5b1719c0d
Signed-off-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66953
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
The PCIe spec explicitly states that the bottom-two bits of the next
offset are reserved for future use and should be masked. We can also
change the loop condition to avoid wrong offsets below 0x100 (exten-
ded capabilities always reside in the extended config space).
The whole patch series was tested on Google Samus and keeps the L1ss
configuration of the WiFi device in tact.
Change-Id: I0b622a0ce0a4a1127d266226ade0ec1e66e9fb79
Signed-off-by: Nico Huber <nico.h@gmx.de>
Tested-by: Patrick Georgi <patrick@coreboot.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66459
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add some inline functions for the bit-wise operations, change the loop
body to an if-bail-out style and remove stateful variables.
Change-Id: Ia8db915f375737064e3486d313383d9b6c3eb2b8
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66458
Reviewed-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Keeping these checks in generic code seems rather dangerous.
In theory, it could lead to endless loops even for compliant
devices, if we accidentally detect arbitrary register contents
as capability and use them as a pointer to another one. Not
to forget that the register reads can have side effects.
All users of this `cafe` have been converted to use
pciexp_find_ext_vendor_cap().
Change-Id: I70d21534e04282a4156572a290b83c46be085e0c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66456
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
We have this quirk in our tree since the introduction of L1-substate
support[1]. The way we searched for this capability was rather crude:
We simply assumed that it would show up in the first data word of
another capability.
As it turned out that it is actually a proper vendor-specific capa-
bility that we are looking for, we can drop some of the mystic code.
This was confirmed to work on the device that was originally used
during development, Google/Samus.
[1] commit 31c6e632cf (PCIe: Add L1 Sub-State support.)
Change-Id: I886fb96e9a92387bc0e2a7feb746f7842cee5476
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66455
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Vendors can choose to add non-standard capabilities inside a
Vendor-Specific Extended Capability. These are identified by
the Extended Capability ID 0x0b.
Change-Id: Idd6dd0e98bd53b19077afdd4c402114578bec966
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66454
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Move the `offset` parameter into pciexp_find_extended_cap(). If it's
called with `0`, we start a new search. If it's an existing offset,
we continue the search.
This makes it easier to search for multiple occurences of a capa-
bility in a single loop.
Change-Id: I80115372a82523b90460d97f0fd0fa565c3f56cb
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66453
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
If we already encountered the last extended capability in the
list, we'd call pciexp_get_ext_cap_offset() with `offset == 0`.
So it also needs to check if the passed offset is valid.
As there were no callers of pciexp_find_next_extended_cap()
yet, pciexp_get_ext_cap_offset() was only ever called with
`PCIE_EXT_CAP_OFFSET`.
Change-Id: I155c4691a34ff16661919913a3446fa915ac535e
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66452
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
It's possible that some BARs are not got their resource successfully
mapped, e.g. when these BARs are too large to fit into the available
MMIO window.
Not assigned resources might be with base address as 0x0. During
global resource search, these not assigned resources should not be
picked up.
One example is MTRR calculation. MTRR calculation is based on global
memory ranges. An unmapped BAR whose base is left as 0x0 will be
mistakenly picked up and recognized as an UC range starting from 0x0.
Change-Id: I9c3ea302058914f38a13a7739fc28d7f94527704
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66347
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Zhang <jonzhang@fb.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>
Looking into pciexp_get_ext_cap_offset() it seems a little hackish
and prone to endless loops. Either it should limit the loop or bail
out when pci_read_config32() returns 0xffffffff, meaning "Unsupported
Requests".
This commit fixes an endless loop when the queried PCIe device is
downstream of a legacy PCI bus which doesn't support extended config
space, thus pci_read_config32() will return 0xffffffff, for example,
the combination below with CONFIG_PCIEXP_SUPPORT_RESIZABLE_BARS
enabled.
TEST=Build and boot to OS in ASUS P8C WS with the following
peripherals and CONFIG_PCIEXP_SUPPORT_RESIZABLE_BARS enabled:
00:1c.4 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series
Chipset Family PCI Express Root Port 5 [8086:1e18] (rev c4)
00:1c.4/00.0 SATA controller [0106]: Marvell Technology Group Ltd.
88SE9170 PCIe 2.0 x1 2-port SATA 6 Gb/s Controller [1b4b:9170]
(rev 13)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge
[8086:244e] (rev a4)
00:1e.0/00.0 PCI bridge [0604]: PLX Technology, Inc. PEX 8111 PCI
Express-to-PCI Bridge [10b5:8111] (rev 21)
00:1e.0/03.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc.
VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [1106:3044]
(rev c0)
00:1e.0/00.0/00.0 Network controller [0280]: Qualcomm Atheros AR93xx
Wireless Network Adapter [168c:0030] (rev 01)
with 00:1c.4/00.0 being successfully tuned with pciexp_tune_dev(), and
00: 1e.0/00.0/00.0 not tuned as expected.
Change-Id: Ibb92548c47288b40e851fcc0a8a37937e8bdbf3c
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66439
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Some PCI capabilities should only be enabled if it is available not
only on a device, but also all bridge upstream of it. Checking only
the device and the bridge just above it may not be enough.
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Change-Id: I1237d3b4b86dd0ae5eb586e3c3c407362e6ca291
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66383
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
