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Disable NULL breakpoints in setup_realmode_idt before calling
write_idt_stub in a loop.
TEST=No more spurious Null dereference errors in the console output.
Before Mandolin showed these two errors before running the VBIOS:
[ERROR] Null dereference at eip: 0x4e6f1a35
[ERROR] Null dereference at eip: 0x4e6f1a4f
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I2255d85030e41192ae8a3a7f0f6576c0d373eead
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77172
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
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Change-Id: Ie766807ae1538b21acf471cfacbfe75cfeead921
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77187
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
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To help identify the licenses of the various files contained in the
coreboot source, we've added SPDX headers to the top of all of the
.c and .h files. This extends that practice to Makefiles.
Any file in the coreboot project without a specific license is bound
to the license of the overall coreboot project, GPL Version 2.
This patch adds the GPL V2 license identifier to the top of all
makefiles in the commonlib, console, northbridge, security, and
southbridge directories that don't already have an SPDX license line
at the top.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I02804a10d0b0355e41271a035613d9f3dfb122f8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68985
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
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Change-Id: I8fa26e7a398eee855c31a76f0f89b4111368c2a6
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76387
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
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To help identify the licenses of the various files contained in the
coreboot source, we've added SPDX headers to the top of all of the
.c and .h files. This extends that practice to Makefiles.
Any file in the coreboot project without a specific license is bound
to the license of the overall coreboot project, GPL Version 2.
This patch adds the GPL V2 license identifier to the top of all
makefiles in the device and soc directories that don't already have an
SPDX license line at the top.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I89c05c7c1c39424de2e3547c10661c7e3f58b8f7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76951
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Tim Crawford <tcrawford@system76.com>
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EDK2 seems to have problems at least with the resource allocation for
Intel's IGD. While the investigation is ongoing, disable top-down
allocation by default if the payload is known to be EDK2.
Change-Id: I771d8a3b74b54a043624843a00498225d1f509ad
Signed-off-by: Nico Huber <nico.h@gmx.de>
Ticket: https://ticket.coreboot.org/issues/499
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76373
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
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The prefix POSTCODE makes it clear that the macro is a post code.
Hence, replace related macros starting with POST to POSTCODE and
also replace every instance the macros are invoked with the new
name.
The files was changed by running the following bash script from the
top level directory.
sed -i'' '30,${s/#define POST/#define POSTCODE/g;}' \
src/commonlib/include/commonlib/console/post_codes.h;
myArray=`grep -e "^#define POSTCODE_" \
src/commonlib/include/commonlib/console/post_codes.h | \
grep -v "POST_CODES_H" | tr '\t' ' ' | cut -d ' ' -f 2`;
for str in ${myArray[@]}; do
splitstr=`echo $str | cut -d '_' -f2-`
grep -r POST_$splitstr src | \
cut -d ':' -f 1 | xargs sed -i'' -e "s/POST_$splitstr/$str/g";
grep -r "POST_$splitstr" util/cbfstool | \
cut -d ':' -f 1 | xargs sed -i'' -e "s/POST_$splitstr/$str/g";
done
Change-Id: I25db79fa15f032c08678f66d86c10c928b7de9b8
Signed-off-by: lilacious <yuchenhe126@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76043
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
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When moving the code to allocate at the top level in commit 9260ea60bfa4
(allocator_v4: Use memranges only for toplevel), a call to restrict the
limit of the resource was dropped. Probably by accident in one of the
earliest rebases. Without this call to effective_limit(), 64-bit resour-
ces at the top level, i.e. PCI bus 0, were always placed above 4G. Even
when this was not requested with the IORESOURCE_ABOVE_4G flag.
Tested on kontron/ktqm77 where the issue could be reproduced with
x86_64. Without the fix, boot hangs when trying to access the GMA
MMIO registers of PCI 00:02.0, which were placed above 4G.
Change-Id: Ied3a0695ef5e91f092bf2d442c1c482057643483
Signed-off-by: Nico Huber <nico.h@gmx.de>
Found-by: 9elements QA
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76090
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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update_bridge_resource() already gets the type passed as part of
the resource.
Change-Id: I6b3c9809caecdd1bad5b98891a00c3392190a3e0
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67022
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Tim Wawrzynczak <inforichland@gmail.com>
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Inline functions that are only called once to improve readability. The
calling functions still have rather short bodies, and the reader won't
have to look down yet another layer to understand what they are doing.
Change-Id: Ib4aa5d61dfa88c804a1aaee028185e00c5fbb923
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65422
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Factor all the resource printing out into separate functions.
This results in one-liners in the actual program code which
hopefully will distract less during reading.
Change-Id: I766db379f3b62d641cb3c41ebe0394b60ba57f7a
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65421
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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During phase 1 of the resource allocation we gather all the size
requirements. Starting from the leafs of our devicetree, we cal-
culate the requirements per bus, until we reach the resource do-
main.
However, because alignment plays a role, we can't just accumulate
the sizes of all resources on a bus. Instead, we already sort all
the resources per bus to predict their relative placement, inclu-
ding alignment gaps. Then, phase 2 has to perform the final allo-
cations with the exact same relative placement.
This patch introduces a very simple mechanism to avoid repeating
all the calculations: In phase 1, we note the relative `base` of
each resource on a bus. And after we allocated all the resources
directly below the domain in phase 2, we add the absolute `base`
of bridge resources to the relative `base` of child resources.
This saves most of the computational complexity in phase 2. How-
ever, with a shallow devicetree with most devices directly below
the domain, this won't have a measurable impact.
Example after phase 1:
domain
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`-- bridge #0
| res #0, base 0x000000 (relative),
| size 12M, align 8M
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|-- device #0
| res #1, base 0x800000 (relative),
| size 4M, align 4M
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`-- bridge #1
| res #2, base 0x000000 (relative),
| size 8M, align 8M
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`-- device #1
res #3, base 0x000000 (relative),
size 8M, align 8M
After phase 2 allocation at the domain level (assuming res #0 got
0xa000000 assigned):
domain
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`-- bridge #0
| res #0, base 0xa000000 (absolute),
| size 12M, align 8M
|
|-- device #0
| res #1, base 0x800000 (relative),
| size 4M, align 4M
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`-- bridge #1
| res #2, base 0x000000 (relative),
| size 8M, align 8M
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`-- device #1
res #3, base 0x000000 (relative),
size 8M, align 8M
Now, all we need to do is to add the `base` of bridge resources
recursively. Starting with resources on the bus below bridge #0:
domain
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`-- bridge #0
| res #0, base 0xa000000 (absolute),
| size 12M, align 8M
|
|-- device #0
| res #1, base 0xa800000 (absolute),
| size 4M, align 4M
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`-- bridge #1
| res #2, base 0xa000000 (absolute),
| size 8M, align 8M
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`-- device #1
res #3, base 0x000000 (relative),
size 8M, align 8M
And finally for resources on the bus below bridge #1:
domain
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`-- bridge #0
| res #0, base 0xa000000 (absolute),
| size 12M, align 8M
|
|-- device #0
| res #1, base 0xa800000 (absolute),
| size 4M, align 4M
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`-- bridge #1
| res #2, base 0xa000000 (absolute),
| size 8M, align 8M
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`-- device #1
res #3, base 0xa000000 (absolute),
size 8M, align 8M
Change-Id: I70c700318a85f6760f27597730bc9c9a86dbe6b3
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65420
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
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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 and turn it on by default. Platforms
that are incompatible should be fixed, but can also override the
default as a temporary measure.
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
An earlier version of this change (commit 117e43611548) had to be
reverted because of missing resource reservations in platform code.
This is worked around now with commit ae81497cb6c7 (device/pci:
Limit default domain memory window).
Change-Id: Ia822f0ce648c7f7afc801d9cb00b6459fe7cebea
Signed-off-by: Nico Huber <nico.h@gmx.de>
Original-reviewed-on: https://review.coreboot.org/c/coreboot/+/65413
Original-reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Original-reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75012
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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It is no longer necessary to explicitly add "ERROR: " in front of
BIOS_ERR message.
Change-Id: I3ff2081d38f94556481efa02f242795bbfc77517
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75876
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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When the default pci_domain_read_resources() is used,
keep 32-bit memory resources below the limit given by
CONFIG_DOMAIN_RESOURCE_32BIT_LIMIT. This serves as a
workaround for missing/wrong reservations of chipset
resources.
This will help to get more stable results from our own
allocator, but is far from a complete solution. Indvi-
dual platform ASL code also needs to be considered, so
the OS won't assign conflicting resources.
Most platforms have reserved space between 0xfe000000
and the 4G barrier. So use that as a global default.
In case of `soc/intel/common/`, use 0xe0000000 because
this is what is advertised in ACPI and there are traces
of resources below 0xfe000000 that are unknown to core-
boot's C code (PCH_PRESERVED_BASE?).
Tested on QEMU/Q35 and Siemens/Chili w/ and w/o top-
down allocation. Fixes EHCI w/ top-down in QEMU.
Change-Id: Iae0d888eebd0ec11a9d6f12975ae24dc32a80d8c
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75102
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Use the proper format specifier for unsigned integers.
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I5e39377d62981229531027b3153d5b343a0a7538
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75400
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Don't assume only one IO and one MEM domain resource.
Currently the code is awkward for bridge devices where loops over
resources are done twice. This would be avoided on top of other patches
that improve the allocator (topic:allocator) by adding a top-down mode.
However those patches break the tree and having the option to have
multiple resources per type would make it easier to get those patches in
without breaking the tree.
Change-Id: I3d3a60c9a4438accdb06444e2b50cc9b0b2eb009
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67018
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
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Registered DIMM should be 'FORMFACTOR_DIMM' with 'DETAIL_REGISTERED'
instead of 'FORMFACTOR_RIMM', RIMM has been EOL for so many years.
Memory form factor info is now correct on 4th Gen Xeon server platform
with registered DIMM.
Signed-off-by: Ziang Wang <ziang.wang@intel.com>
Signed-off-by: Kehong Chen <kehong.chen@intel.com>
Change-Id: I1eea4717a2d60c6100c262a2284a2ac5109f114a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75489
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
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The rationale behind this change is that multiple nested bridges using a
lot of bus numbers and IO resources is not likely to be a common hotplug
setup. When there is a large amount of hotplug ports using 32
subordinate busses results in boot failures (e.g. make qemu). 8K IO
busses for hotplug devices is also excessive in most use cases when only
64K is available in total (again make qemu results in failure to
allocate resources but does boot to payload).
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I8371958037d479e7d2053f49814735e15461ca6e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74774
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
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Code changes are necessary because `-Wformat` warns about empty
format strings by default.
Change-Id: Ic8021b70f4cd4875b06f196f88b84940c9a79fe0
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75147
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: I56ffb82ec417530527ea1ea7e97a593e5bf6b756
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75148
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
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These strings are now only expanded in lib/identity.c.
This improves ccache hit rates slightly, as one built object file
lib/version.o is used for all variants of a board. Also one built
object file lib/identity.o can become a ccache hit for successive
builds of a variant, while the commit hash changes.
Change-Id: Ia7d5454d95c8698ab1c1744e63ea4c04d615bb3b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74449
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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Move D3COLD_SUPPORT to device, so it can be used by multiple
SOCs.
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: Ie92736458ab95374c51346107665dc0fd1e653a4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74404
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This reverts commit 655f7362e13ca49e3e13a822c916c7dc52573d74.
Reason for revert: Apparently, the change was not properly reviewed. It
not only contains conflicting name and description of the D3COLD
Kconfig, but also creates a conflict between existing devicetree and
Kconfig options for D3Cold/S3/S0ix.
Change-Id: I56ce8f59f8548fc58bc2b3b07c1314e2eed7061c
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73903
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
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This is needed to generate MADT and SRAT where lapicid for threads need
to be added last. When CPUID leaf '0xB' is not present assume some
defaults that would result in identical ACPI code generation.
Change-Id: I2210eb9b663dd90941a64132aa7154440dc7e5a9
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69222
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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It's quite confusing to keep track of lapic ID inside the device
struct and initial lapic ID inside an array.
Change-Id: I4d9f8d23c0b0e5c142f6907593428d8509e4e7bb
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64342
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add a paragraph to the help text for VGA_BIOS_ID to explain which PCI ID
needs to be used.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I1a0f25481e275b7d190f29f5670cc98443dbe719
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73613
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
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Only call cbfs_boot_map_optionrom/cbfs_boot_map_optionrom_revision once
and pass the already remapped PCI ID to it. This avoids the spurious
warning that the CBFS file wasn't found from the first
cbfs_boot_map_optionrom call in cases where the PCI ID needs to be
remapped to get the right ID for which a file in CBFS exists.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: If7da78c69dd702280a78996a5823972516e0319b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73612
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The XHCI device functions currently use functions that require a
access to the device tree. Create variant of these functions that can
operate with a resource* as an argument and refactor the existing
device*-based functions to operate by calling the resource*-based
variants. This is useful for stages like SMM that may not have access to
the device tree.
BRANCH=guybrush
BUG=b:186792595
TEST=Ran on skyrim device, verified that XHCI ACPI tables are still
generated correctly.
Change-Id: If5a74f9529d5dc6031ec968ef5f40a9cad5ffbc4
Signed-off-by: Robert Zieba <robertzieba@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69914
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
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The Common Clock Configuration (CCC) is a PCIe feature for cases where
the upstream and downstream device of a link share the same reference
clock. After a change in this setting a link re-training is mandatory
to make it effective.
On recent Intel platforms (tested on Elkhart Lake) the FSP code which is
executed before coreboot performs the PCI scan already enumerates all
PCI buses for its internal uses. While this is done, all the PCI express
features of a link are configured, which includes CCC. If the link
supports common clock, FSP performs the link re-training already. When the
execution flow is returned to coreboot, the same link treatment is
applied again (coded in 'pciexp_tune_dev()') and CCC is enabled a second
time, just a few milliseconds after FSP did this already.
Because enabling CCC requires a link re-training, there are two link
re-trainings on the PCIe link within a few milliseconds (one from the FSP
code and one from coreboot) which can lead to issues with a connected
PCIe device on this link. In particular, link issues were discovered
with a Pericom PCIe switch (PI7C9X2G608) on mc_ehl1 where the link has
stalled for a while after the second re-training. This in turn leads to
non-initialized PCI devices on the bus after coreboot has finished.
This patch checks if CCC is already enabled on a link and does not
perform the steps to enable it again in coreboot which safes a link
re-training (and thus execution time) and a potential link stability
issue.
Test=Check log output on mc_ehl1 which shows the following lines:
[DEBUG] PCI: pci_scan_bus for bus 09
[DEBUG] PCI: 09:00.0 [8086/1533] enabled
[INFO ] PCIe: Common Clock Configuration already enabled
Change-Id: I747fa406a120a215de189d7252f160c8ea2e3716
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73310
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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There is a Nanya device used on one of the Google Guybrush devices,
so add it to the list of SPD manufacturer names.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: Ia449f4d14385cdd5a2548e2a05e3928ea3602c12
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73254
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
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Add NO_S0IX_SUPPORT for boards that do not support, or do not want
to support S0IX.
As all the boards in the tree that do this, don't support D3Cold,
add D3COLD_SUPPORT that defaults to `n` when NO_S0IX_SUPPORT is
selected to disable D3Cold support.
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I03378cc7bb76fd65fcec81018e47f6288d437cd8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73042
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
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Found by linter
Change-Id: I7a49cce0b56cf83d0e4490733f9190284a314c4a
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72896
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
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By default this limits PCI buses to CONFIG_MMCONF_BUS_NUMBER.
Some platforms have multiple PCI root busses (e.g. xeon_sp), where bus
numbers are limited. This provides a basic check. On some platforms it
looks like programming 0xff to the subordinate bus number confuses and
hangs the hardware.
Change-Id: I0582b156df1a5f76119a3687886c4d58f2d3ad6f
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59395
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
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<device/pci.h> chain-includes <device/pci_def.h> & <device/pci_type.h>.
Change-Id: I4e5999443e81ee1c4b1fd69942050b47f21f42f8
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72626
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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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>
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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>
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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>
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Move specific enum ddr3_module_type to <device/dram/ddr3.h>.
Change-Id: I8fd7892dda26158a5bdd6cd4972c7859a252153e
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71547
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Move specific enum ddr2_module_type to <device/dram/ddr2.h>.
Change-Id: I748658f9b349bff9b1ebe2c0a6acf71bf2a221ce
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71546
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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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>
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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 f45c7671d9ed ("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>
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Don't rely on this being 0.
Change-Id: I7c0d16b6a265bf9c7abcfdf2f18a43706ee03ea1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69752
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
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<device/mmio.h>` chain-include `<arch/mmio.h>:
https://doc.coreboot.org/contributing/coding_style.html#headers-and-includes
Also sort includes while on it.
Change-Id: Ie62e4295ce735a6ca74fbe2499b41aab2e76d506
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70291
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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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>
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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>
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Change-Id: I11593245fedc26489e3506d773aaff1ad34188b1
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69804
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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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>
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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>
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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>
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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>
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No platform uses this anymore.
Change-Id: Ifccb59ae45daa8fec41a9a2d46c628ff24a0c998
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69140
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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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>
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Also sort includes.
Change-Id: I1727bf56b4090d040aab413006dec7aca0587d44
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69038
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: Idd78271f2158bdc29ce9ac8d81f46ad8cbe84c5e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68205
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
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Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I8ea6e773d858b30d75ff93d4fe07301f3825c1cb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68240
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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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>
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Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I7e84760566db5da7ff88dcbe9fb028ebcb390bdc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68043
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
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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>
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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>
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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>
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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>
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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>
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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>
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This reverts commit 117e436115484f0ce184114b22b716616592e77e.
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>
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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>
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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>
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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>
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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>
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Change-Id: I52548e544165b4732d9989da6455c8fd77bf99d3
Signed-off-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67185
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
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Change-Id: I80fccfa6d108b68d6f33a3d47766205b423a41ff
Signed-off-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67058
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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'parent_cap' should be found from 'parent' instead of 'dev'.
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Change-Id: I99dab83d90287ca924d30dc4aeac0ff96e877e5c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66385
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
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Use 0x016llx to print device resource info so that both 64bit and
32bit resources could be displayed correctly.
Signed-off-by: Gang Chen <gang.c.chen@intel.com>
Change-Id: I0ec4c47cca4a09ceb7dc929efaa5630b1f9df81c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66324
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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We actually want the bus driver to process the 1 zero-length write
we are passing. So set the count to 1.
Change-Id: I5a41abb68c27a83715b6baec91ece9fa90b66a8c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Tested-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66337
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Crawford <tcrawford@system76.com>
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As we walk the results of largest_resource(), we actually know that the
condition can only be true for the first return value. So there's no
need to keep track of the first loop iteration.
Change-Id: I6d6b99e38706c0c70f3570222d97a1d71ba79744
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65401
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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While what this round() function does is documented, it still seems
hard to follow what happens when reading a call. I tried to come up
with a better name, but eventually reading an explicit ALIGN_UP()
worked best.
Change-Id: Ifd49270bbae0ee463a996643fc76bce1f97ec9b7
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65400
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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These comments are a very nice example of documented code. The
comment blocks use the full, allowed line length, though. That
is nice for code, but can make text blocks harder to read. So
reflow the comments to a 72-char width (like we use in emails
and commit messages).
Also add some articles where they seemed missing and fix some
smaller nits.
Change-Id: If4cdbb383cf67f01200c8e4163fc3c576a5c3a87
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65399
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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The comment said special care needs to be taken if a resource cannot
be allocated. However, the opposite seems true: There is nothing to
be done, we simply leave the resource w/o the IORESOURCE_ASSIGNED
flag. There's also no code to be found that would currently do some-
thing special. allocate_child_resources() directly continues with
the next resource after printing an error.
Change-Id: I21acbc891ea4dfb62decf9abe0ace91016486116
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65412
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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These should help to make the reviews as platforms
remove KiB scaling.
Change-Id: I40644f873c0ea993353753c0ef40df4c83233355
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55474
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Function fixed_io_resource() and alias io_resource() were
previously unused. Unlike previously, IORESOURCE_STORED flag
needs to be set by the caller, when necessary.
For fixed resources, fields alignment, granularity and
limit need not be initialised, as the resource cannot
be moved. It is assumed the caller provides valid base
and size parameters.
Change-Id: I8fb4cf2dee4f5193e5652648b63c0ecba7b8bab2
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55458
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Unlike fixed_mem_resource_kb() the arguments are not in KiB.
This allows coccinelle script to assign the base and size
without applying the KiB division or 10 bit right-shift.
Unlike with fixed_mem_resource_kb() the IORESOURCE_STORED flag is
passed in the flags parameter until some inconsistencies in the tree
get resolved.
Change-Id: I2cc9ef94b60d62aaf4374f400b7e05b86e4664d2
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55436
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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There is a lot of going back-and-forth with the KiB arguments, start
the work to migrate away from this.
Change-Id: I329864d36137e9a99b5640f4f504c45a02060a40
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64658
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Improves readability in console log.
Change-Id: Ied0cbb746ff3ca6250ed9322dfb2726da0949e16
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65230
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
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When trying to find the parent i2c bus of a given device, ensure that
the bus link doesn't point to itself, else we'll get stuck in an
infinite loop.
Change-Id: I56cb6b2a3e4f98d2ce3ef2d8298e74d52661331c
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65229
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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This patch adds the I2C equivalent of an SMBus quick write to an I2C
device, which is used by some I2C drivers as a way to probe the
existence (or absence) of a certain device on the bus, based on
whether or not a 0-byte write to an I2C address is ACKed or NACKed.
i2c_dev_detect() is implemented using the existing i2c bus ops transfer()
function, so no further work is needed for existing controller drivers
to utilize this functionality.
Change-Id: I9b22bdc0343c846b235339f85d9f70b20f0f2bdd
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64537
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
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When a PCI resource is marked as 64-bits, the IORESOURCE_ABOVE_4G flag
needs to be passed to the v4 allocator to ensure that the resource will
be allocated in a range large enough to succeed.
BUG=b:214443809
TEST=agah can successfully allocate all of the Nvidia GN20 BARs
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I3f16f52f2a64f8728853df263da29871dca533f7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64725
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
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