The existing ECC initialization algorithm contained several bugs on both
Family 10h and Family 15h processors, including activation of ECC scrub
before DRAM setup was completed, in violation of both BKDG and errata
recommendations.
Change-Id: I09a8ea83024186b7ece7d78a4bef1201ab34ff8a
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/12002
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
The existing prefetcher configuration was incorrect; use the correct
values from the AMD Family 10h and Family 15h BKDGs as appropriate.
Change-Id: I287ffa6345e1f4d232d4b2ea4251650ada3fda92
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/12417
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The existing code enabled ECC before clearing memory. As the
AMD CPUs will generate MCEs on any invalid check bits, this
resulted in random lockups during memory training due to the
uniniailized check bits.
Initialize ECC check bits before enabling ECC hardware.
Change-Id: I992e7040520570893ba6a213138dd57bfa14733b
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11996
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Certain DIMMs, for example DIMMs on which the EEPROM has been modified
by the end user, may not contain a valid SPD checksum. While this is
not a normal condition, it may be useful to allow a checksum override
while memory timing parameters are being altered, e.g. in the course
of overclocking or underclocking, or when recovering from a bad SPD
write.
This is an advanced level feature primarily useful for debugging
and development.
Change-Id: Ia743a13348d0a6e5e4dfffa04ed9582e0f7f3dad
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11987
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Under specific circumstances, for instance in low power or fanless
machines, it may be useful to cap the maximum P-state of the CPU.
Allow the maximum CPU P-state to be set via an NVRAM option.
Change-Id: Ifdbb1ad11a856f855c59702ae0ee99e95b08520e
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11985
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
This patch adds CC6 power save support to the AMD Family 15h
support code. As CC6 is a complex power saving state that
relies heavily on CPU, northbridge, and southbridge cooperation,
this patch alters significant amounts of code throughout the
tree simultaneously.
Allowing the CPU to enter CC6 allows the second level of turbo
boost to be reached, and also provides significant power savings
when the system is idle due to the complete core shutdown.
Change-Id: I44ce157cda97fb85f3e8f3d7262d4712b5410670
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11979
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
DRAM training accounts for most of the romstage startup time, yet
if the hardware configuration has not changed from the previous boot
the previously discovered training values are still valid. Use them
if the DIMM configuration has not changed since the last boot.
The SPD values of all installed DIMMs are hashed and stored in the S3
resume data area of the main system Flash device. If a DIMM is changed
the hash will almost certainly change as well, forcing retraining on next
boot.
Change-Id: I37ed277b16476d38e4af76c6ae827a575c6b017d
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11976
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Upon bootup the hardware reads at minimum 256 * 16 bytes (4Kb, or 32KB) over
I2C on a system with all DIMM slots populated. If even one of those reads
has a single flipped bit in it (due to EMI, cross coupling with another trace,
or just poor margins on some cheap DIMM) the system will hang and require a
hard reset. In practice I've seen failure rates as high as 1 failed boot in
50 due to this issue, granted with cheap DIMMs, but even so retrying the read
resolves the corruption issue.
I2C is not designed for continuous data transmission with high reliability, and
there is no hardware error checking, therefore a single retry when transferring
this amount of data makes sense.
Change-Id: Ifab63eca2233c63a6a42ab8b7e742f8e47fb2a09
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11975
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
The RDK amd/db-ft3b-lc board will use this for on-board DDR3.
Change-Id: I2ffd38e7e949d3a60487e91188ddaab04b03d4b2
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/12358
Tested-by: build bot (Jenkins)
Reviewed-by: Zheng Bao <zheng.bao@amd.com>
This cast only hides errors in matching the API properly.
Change-Id: I9b878ab997b8ff087a7209f94522646b10b94bf6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/12271
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This cast only hides errors in matching the API properly.
Change-Id: Ic396dfb572a50ac5ce5c1c83424e1f17f15bad1d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/12270
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The plugged devices on PCIe should use IOAPIC2 instead of standard
IOAPIC1. The entries in IOAPIC2 count from the end of IOAPIC1.
The unchanged code worked because the OS uses MSI instead APIC.
To test that, boot linux with parameter pci=nomsi and see if the devices
like NIC work well as they do without the booting parameter.
Change-Id: I893e73f2aab3227381e44406fa285613e4ba2904
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11374
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Most AMD hardware requires at minimum two warm resets
when booting from S5 (power off). This is uncomfortably
close to the maximum bootblock execution count, and has resulted
in unstable normal/fallback operation on some machines.
Increase the default max bootblock execution count before fallback
to 6. This translates to roughly 2 - 3 failed boots before fallback
mode will engage, with an absolute worst case of pushing the reset
button 5 times to engage fallback mode in the absence of a dedicated
recovery jumper.
Change-Id: I1911f1b77f168835b516e6a915d5b6949f47219a
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/12317
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
TEST: Booted ASUS KGPE-D16 with single Opteron 6380
* Unbuffered DDR3 DIMMs tested and working
* Suspend to RAM (S3) tested and working
Change-Id: Idffd2ce36ce183fbfa087e5ba69a9148f084b45e
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11966
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
It encourages users from writing to the FSF without giving an address.
Linux also prefers to drop that and their checkpatch.pl (that we
imported) looks out for that.
This is the result of util/scripts/no-fsf-addresses.sh with no further
editing.
Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/11888
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
There are some inconsistencies in AMDs APIs between the coreboot
code and the vendorcode code. Unify the API.
UINTN maps to uintptr_t in UEFI land. Do the same
here. Also switch the other UEFI types to map to
fixed size types.
Change-Id: Ib46893c7cd5368eae43e9cda30eed7398867ac5b
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Signed-off-by: Scott Duplichan <scott@notabs.org>
Reviewed-on: http://review.coreboot.org/10601
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This is extending http://review.coreboot.org/#/c/10583/
(29e6548) to the remaining AGESA northbridge drivers.
Change-Id: I6fa53b36a1420e92cb4aecb0f7b4c71541a94c71
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/11021
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The native AMD DDR3 memory initialization code was riddled with
numerous errors and was missing critical configuration code segments;
this made it so that DDR3 memory did not function on most AMD boards.
This patch corrects enough of the DDR3 initialization such that
UDIMMs can be used on most channels of G34 Opteron boards. Further
work is needed to fix the broken RDIMM code and remaining UDIMM issues.
Change-Id: Iab690db769e820600693ad1170085623b177b94e
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11941
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
We use UNDERSCORE_CASE. For the MTRR macros that refer to an MSR,
we also remove the _MSR suffix, as they are, by definition, MSRs.
Change-Id: Id4483a75d62cf1b478a9105ee98a8f55140ce0ef
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/11761
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
The thermal sensor interface exposed in function 3 of the northbridge is
a more convenient and faster way to access the processor-internal
thermal sensor than using the SMBus/SB-TSI interface from the FCH, see
the Family14 BKDG: "Tctl is a processor temperature control value used
for processor thermal management. Tctl is accessible through SB-TSI and
D18F3xA4[CurTmp]. Tctl is a temperature on its own scale aligned to the
processors cooling requirements"
Also on at least some of these boards the existing thermal zone is
broken and always returns 40C (the default value if the SMBus read
failed) because the SMBus muxing register (SmBus0Sel) is not set up
correctly.
Case in point: The fallback "smbus read failed" temperature is 40 C and
the the logs taken from the board status repository for the Asrock
E350M1 board all show: "ACPI: Thermal Zone [TZ00] (40 C)"
e.g.
http://review.coreboot.org/gitweb?p=board-status.git;a=blob;f=asrock/e350m1/4.0-5054-gf584218/2013-12-20T20:56:20Z/kernel_log.txt#l390
and
http://review.coreboot.org/gitweb?p=board-status.git;a=blob;f=asrock/e350m1/4.0-7030-g6d7de4f/2014-10-16T15:34:19Z/kernel_console.txt#l404
and
http://review.coreboot.org/gitweb?p=board-status.git;a=blob;f=asrock/e350m1/4.0-9989-gf2dfef0/2015-06-13T00:22:49Z/kernel_log.txt#l425
Example lm-sensors output with this patch on the pcengines APU1, on
Linux 4.1.0-rc8+ (wiht both CONFIG_ACPI_THERMAL and
CONFIG_SENSORS_K10TEMP enabled):
acpitz-virtual-0
Adapter: Virtual device
temp1: +54.0 C (crit = +100.0 C)
k10temp-pci-00c3
Adapter: PCI adapter
temp1: +54.0 C (high = +70.0 C)
(crit = +100.0 C, hyst = +97.0 C)
Change-Id: Id9c5b783ba424246816677099ec6651814e59f21
Signed-off-by: Tobias Diedrich <ranma+coreboot@tdiedrich.de>
Reviewed-on: http://review.coreboot.org/10940
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Change-Id: Idf28faa26a7ea5e94495af5ff027309df444766e
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/11376
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
After much consideration, and many years of an EXPERT mode sitting
almost completely unused, we've seen that it doesn't work for us.
There is no standard on what constitutes EXPERT, and most of
coreboot's options Kconfig are expert-level.
We even joked that not selecting "EXPERT" should prevent coreboot
from compiling:
@echo $(shell whoami) is not permitted to compile coreboot
Change-Id: Ic22dd54a48190b81d711625efb6b9f3078f41778
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/11365
Tested-by: build bot (Jenkins)
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
Commit 27baa32 (cpu/amd/model_10xxx: Do not initialize SMM memory if
SMM is disabled) deactivated TSeg SMRAM, which had the side effect
of routing legacy VGA memory access to DRAM. Restore the correct
MMIO mapping via the MMIO configuration registers.
TEST: Booted KGPE-D16 with nVidia 7300LE card and verified proper VGA
functionality.
Change-Id: Ie4b7c0b2d6f9a02af9a022565fe514119513190a
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11240
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The sysinfo object within the k8 ram init is used
to communicate progess/status from all the nodes in the
system. However, the code was assuming where the sysinfo
object lived in cache-as-ram. The layout of cache-as-ram
is dynamic so one needs to do the lookup of the correct
address at runtime. The way the amd code is compiled
by #include'ing .c files makes the solution a little
more complex in that some cache-as-ram support code
needed to be refactored.
Change-Id: I6500fa7b005dc082c4c0b3382ee2c3a138d9ac31
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10961
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Related-to: I3175c8b29e94a27a2db6b11f8fc9e1d91bde11f9
(ACPI: Fix corrupt SSDT table on multiprocessor AMD Family 10h systems)
Change-Id: I0b5f265278d90cbaeddc6fc4432933856050f784
Signed-off-by: Jonathan A. Kollasch <jakllsch@kollasch.net>
Reviewed-on: http://review.coreboot.org/10912
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This is breaking the build right now. Reapply once the correct headers are in place.
This reverts commit 406effd590.
Change-Id: I34b8717820ed58b462d4e7793711ee98fb8b882f
Reviewed-on: http://review.coreboot.org/11020
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This adds support for binarypi based boards that have
to make adjustments to the memory configuration settings.
A PlatformMemoryConfiguration[] table that describes
the memory configuration must be defined in the
mainboard folder.
Change-Id: I5e4b476a4adf3dd1f3b7843274a81ecb243d10ab
Signed-off-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/10672
Tested-by: build bot (Jenkins)
Reviewed-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
This ACPI thermal zone is applicable to AMD family 10 to 14 (and some
15) CPUs.
It should not be used on boards for which errata 319 (The thermal sensor
of Socket F/AM2+ processors may be unreliable) is applicable. AM3 and
later should be fine.
Derived from src/northbridge/amd/amdk8/thermal_mixin.asl
Change-Id: Id036cbf4cd717c3320a720edc452945df2b5e072
Signed-off-by: <ranma+coreboot@tdiedrich.de>
Reviewed-on: http://review.coreboot.org/10617
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
The address of array 'sysinfo->DCTstatA' will always evaluate to 'true'.
Remove checking the base pointer of an array for validity.
Found-by: Coverity (CID 1293135: Incorrect expression)
Found-by: Clang (Wpointer-bool-conversion)
Change-Id: I99c9c9f1564dfb997c60b2a895d664e3b06c117b
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/9596
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Bettong, Lamar and Olivehill Plus have many same Kconfigs.
Move them to northbridge/amd/pi/Kconfig.
Change-Id: I758d5a09f27eee7a7bd60268a2aaed6f16fd0294
Signed-off-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Signed-off-by: WANG Siyuan <SiYuan.Wang@amd.com>
Reviewed-on: http://review.coreboot.org/10421
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested on Bettong. Windows 7, Windows 8.1 and Ubuntu 14.04 can boot.
Change-Id: Ifcbfa0eab74875638a40e74ba2a3bb7c4fb02761
Signed-off-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Signed-off-by: WANG Siyuan <SiYuan.Wang@amd.com>
Reviewed-on: http://review.coreboot.org/10419
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Merlin Falcon(Carrizo) replaces struct AMD_S3SAVE_PARAMS
with struct AMD_RTB_PARAMS and replaces AMD_S3_PARAMS with
S3_DATA_BLOCK.
Change-Id: If074a8de95d82130d29b2e3cfbd7e35cdb9b929d
Signed-off-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Signed-off-by: WANG Siyuan <SiYuan.Wang@amd.com>
Reviewed-on: http://review.coreboot.org/10526
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
It's not used outside of very old AMD CPUs.
Change-Id: Ide51ef1a526df50d88bf229432d7d36bc777f9eb
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10538
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
No board in the tree selects this and it looks like the implementation
was done at chipset level while it should be part of PCI subsystem.
When enabled, at least AMD K8 and f14, f15tn and f16kb fail build test.
Feature of placing prefetchable PCI memory above 4GB may not work if
there is any 32-bit only prefetchable PCI BARs in the system.
Change-Id: I40ded2c7d6d05f461423721aa5d78a78f9f9ce1e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8705
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
On modern mainboards with multiple PCI-e devices and a single
graphics card the default MMIO hole size of 512M is inadequate,
leading to resource-hungry PCI-e devices (such as an external
graphics card) being assigned invalid MMIO ranges. This, in
turn, causes the entire PCI subsystem to become unavailable,
leading to a failure to boot.
TEST: Booted KGPE-D16 with NVIDIA 7300LE and verified proper
operation of PCI/PCI-e devices, including text mode VGA operation
via the add-on card and its VGA option ROM.
Change-Id: I8d25f4b19f2d0860644ab1ee002c15041437121f
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/10428
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Used command line to remove empty lines at end of file:
find . -type f -exec sed -i -e :a -e '/^\n*$/{$d;N;};/\n$/ba' {} \;
Change-Id: I816ac9666b6dbb7c7e47843672f0d5cc499766a3
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: http://review.coreboot.org/10446
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
`device_t device` is missing as argument. Every device_op function
should have a `device_t device` argument.
Change-Id: I1ba4bfa0ac36a09a82b108249158c80c50f9f5fd
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: http://review.coreboot.org/9599
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
`device_t device` is missing as argument. Every device_op function
should have a `device_t device` argument.
Change-Id: I7fca8c3fa15c1be672e50e4422d7ac8e4aaa1e36
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: http://review.coreboot.org/9598
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This patch adds a few bit counting functions that are commonly needed
for certain register calculations. We previously had a log2()
implementation already, but it was awkwardly split between some C code
that's only available in ramstage and an optimized x86-specific
implementation in pre-RAM that prevented other archs from pulling it
into earlier stages.
Using __builtin_clz() as the baseline allows GCC to inline optimized
assembly for most archs (including CLZ on ARM/ARM64 and BSR on x86), and
to perform constant-folding if possible. What was previously named log2f
on pre-RAM x86 is now ffs, since that's the standard name for that
operation and I honestly don't have the slightest idea how it could've
ever ended up being called log2f (which in POSIX is 'binary(2) LOGarithm
with Float result, whereas the Find First Set operation has no direct
correlation to logarithms that I know of). Make ffs result 0-based
instead of the POSIX standard's 1-based since that is consistent with
clz, log2 and the former log2f, and generally closer to what you want
for most applications (a value that can directly be used as a shift to
reach the found bit). Call it __ffs() instead of ffs() to avoid problems
when importing code, since that's what Linux uses for the 0-based
operation.
CQ-DEPEND=CL:273023
BRANCH=None
BUG=None
TEST=Built on Big, Falco, Jerry, Oak and Urara. Compared old and new
log2() and __ffs() results on Falco for a bunch of test values.
Change-Id: I599209b342059e17b3130621edb6b6bbeae26876
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 3701a16ae944ecff9c54fa9a50d28015690fcb2f
Original-Change-Id: I60f7cf893792508188fa04d088401a8bca4b4af6
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/273008
Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10394
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
We can define is_sblink = (max == 0) as sblink is always the
very first chain we scan.
Change-Id: Ibd6b3ea23954ca919ae148604bca2495e9f8753b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8564
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
If SB_HT_CHAIN_ON_BUS0 is selected, HyperTransport chain for System Bus
is the first to scan and it will be assigned with bus number 0.
If HT_CHAIN_DISTRIBUTE is selected, each link will reserve a fixed range
of bus numbers instead of assigning consecutive numbers across all the links.
All fam10 have SB_HT_CHAIN_ON_BUS0 selected under northbridge.
Follow-up can easily drop this if we find this is dictated by architecture.
Change-Id: I8deddcb4c3fd679b6b27e2879d9dba3895c4dd6f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8366
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
When we want to scan the HT chain to southbridge first, we
relocate it as the first item of dev->link_list of node 0.
Change-Id: Ic73ba43aadb3c5e0c8d4b82ed7d41094692ea37f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8560
Tested-by: build bot (Jenkins)
Reviewed-by: Nicolas Reinecke <nr@das-labor.org>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Define the default value under northbridge. The list of boards this
patchset touches will change to use SB_HT_CHAIN_ON_BUS0 with
follow-up patch.
Based on code analysis, these boards already scan system bus
as the first (active) HT chain, so it is placed as bus 0
even when this option was not explicitly selected.
Change-Id: I5a00d6372cb89151940aeee517ea613398825c78
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8353
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Some cases of max==0xff wrapping around the 8-bit link->secondary
register remain to be solved.
Change-Id: I01e2ab6b2f23a03dbac49207ab584eccd1ca9b1f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8364
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
One PCI function may contain upto 4 links, further links must
be added to PCI function 4 on the same device.
There is no requirement that in dev->link_list the last element
would have the highest link->link_num.
Also fix off-by-one error when allocating for more links.
Change-Id: If7ebdd1ad52653d3757b5930bd0a83e2cf2fcac6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8555
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
The input/output value max is no longer used for tracking the
bus enumeration sequence, everything is handled in the context
of devicetree bus objects.
Change-Id: I545088bd8eaf205b1436d8c52d3bc7faf4cfb0f9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8541
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
For the PCI root node, input parameter max==0 and output value
max is not relevant for operation.
Change-Id: I23adab24aa957c4d51d703098a9a40ed660b4e6c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8855
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
The actual use of the parameter max is to keep track of PCI bus
number while recursively scanning PCI bridges or PCI-e rootports.
Neither CPU, SMBus, LPC or other static buses are involved in this
enumeration, but the way bridge operations were originally designed
forced to pass this argument thru unrelated functions.
Follow-up removes these once the function prototype gets fixed.
Change-Id: Idbc9c515a362c571a1798bb36972058b309c2774
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8535
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
For amdfam10, (ht_c_index > 3) never evaluates true as the code
already has a return for this case above.
Change-Id: Ie90941671e1b2b4f42e2b1b0641ca59334fcf0f1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8688
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Allows to remove parameter max from the call, it is not involved
with the unitid assignment.
Change-Id: I087622f4ff69474f0b27cfd8709106ab8ac4ca98
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8687
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
A new CBFS API is introduced to allow making CBFS access
easier for providing multiple CBFS sources. That is achieved
by decoupling the cbfs source from a CBFS file. A CBFS
source is described by a descriptor. It contains the necessary
properties for walking a CBFS to locate a file. The CBFS
file is then decoupled from the CBFS descriptor in that it's
no longer needed to access the contents of the file.
All of this is accomplished using the regions infrastructure
by repsenting CBFS sources and files as region_devices. Because
region_devices can be chained together forming subregions this
allows one to decouple a CBFS source from a file. This also allows
one to provide CBFS files that came from other sources for
payload and/or stage loading.
The program loading takes advantage of those very properties
by allowing multiple sources for locating a program. Because of
this we can reduce the overhead of loading programs because
it's all done in the common code paths. Only locating the
program is per source.
Change-Id: I339b84fce95f03d1dbb63a0f54a26be5eb07f7c8
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9134
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
There is no need to backup VolatileStorage in SPI flash at all.
At the time we need it, we have CBMEM available.
Change-Id: If0ca57b314140a833d6d59fe9e236e07816f05a4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/10318
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
