With the common southbridge SPI code reinitialization after lockdown
is not necessary, hence the SMM finalize call becomes a no-op.
Change-Id: I4d7c6ba91dc9f0e0ce4e3228fdf859d5f3d5abf4
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36004
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
We generally do not guard source in attempts to reduce
the final object sizes, but rely on garbage collection.
Most of the __unused attributes inserted here will be
removed when remaining __SIMPLE_DEVICE__ guards can
be removed.
Change-Id: I2440931fab4f41d7e8249c082e6c9b5a9cd0ef13
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36641
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This avoids a lot of if (CONFIG(ELOG_GSMI)) boilerplate.
Change-Id: I87d25c820daedeb33b3b474a6632a89ea80b0867
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36647
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Delete acpi_create_intel_hpet() which has been replaced
by acpi_write_hpet() in the corresponding soc folders
some time ago.
Change-Id: I788c9ef27cdc575eb8467cbef64ee52f4053e197
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35207
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Guckian
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
The x86 timers are a bit of a mess. Cases where different stages use
different counters and timestamps use different counters from udelays.
The original intention was to only flip TSC_CONSTANT_RATE Kconfig
to NOT_CONSTANT_TSC_RATE. The name would be incorrect though, those
counters do run with a constant rate but we just lack tsc_freq_mhz()
implementation for three platforms.
Note that for boards with UNKNOWN_TSC_RATE=y, each stage will have a
slow run of calibrate_tsc_with_pit(). This is easy enough to fix with
followup implementation of tsc_freq_mhz() for the platforms.
Implementations with LAPIC_MONOTONIC_TIMER typically will not have
tsc_freq_mhz() implemented and default to UNKNOWN_TSC_RATE. However,
as they don't use TSC for udelay() the slow calibrate_tsc_with_pit()
is avoided.
Because x86/tsc_delay.tsc was using two different guards and nb/via/vx900
claimed UDELAY_TSC, but pulled UDELAY_IO implementation, we also switch
that romstage to use UDELAY_TSC.
Change-Id: I1690cb80295d6b006b75ed69edea28899b674b68
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33928
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This patch creates a common instance of sleepstates.asl inside intel common
code (southbridge/intel/common/acpi) and asks all IA CPU/SOC code to
refer sleepstates.asl from common code block.
TEST=Able to build and boot Hatch and ICL DE system. Dump DSDT.asl to verify
S0/S3/S4/S5 entries after booting to OS.
Change-Id: Ie2132189f91211df74f8b5546da63ded4fdf687a
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36463
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This adds a common cbmem_top implementation to all coreboot target.
In romstage a static variable will be used to cache the result of
cbmem_top_romstage.
In ramstage if CONFIG_RAMSTAGE_CBMEM_TOP_ARG is set a global variable
needs to be populated by the stage entry with the value passed via the
calling arguments. if CONFIG_RAMSTAGE_CBMEM_TOP_ARG is not set the
same implementation as will be used as in romstage.
Change-Id: Ie767542ee25483acc9a56785ce20a885e9a63098
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36273
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
ACPI Version 6.3 Section 6.1: "A device object must contain either an _HID
object or an _ADR object, but should not contain both."
Change-Id: I09fce1298794f30c1db699438204ac32ee9cb27d
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36296
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
As VGA_ROM_RUN and libgfxinit are mutually exclusive in Kconfig,
we don't have to guard all the VGA BIOS if's and can assume
gfx_get_init_done() returns 0 until all the quirks are handled.
Then, we can run libgfxinit.
Change-Id: Id5d0c2c12b1ff8f95ba4e0223a3e9aff27547acd
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/20100
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Port the backlight-PWM handling from Skylake instead of the previously
used Haswell version. We use a 200Hz PWM signal for all boards. Which
is higher than the previous devicetree value, 183Hz, but that was over-
ridden by the VBIOS anyway. 200Hz is still very low, considering LED
backlights, but accurate values are unknown at this time.
Lynx Point, the PCH for Haswell and Broadwell, is a transition point
for the backlight-PWM config. On platforms with a PCH, we have:
o Before Lynx Point:
The CPU has no PWM pin and sends the PWM duty-cycle setting
to the PCH. The PCH can choose to ignore that and use its own
setting (BLM_PCH_OVERRIDE_ENABLE).
We use the CPU setting on these platforms.
o Lynx Point + Haswell:
The CPU has an additional PWM pin but can be set up to send
its setting to the PCH as before. The PCH can still choose
to ignore that.
We use the CPU setting with Haswell.
o Lynx Point + Broadwell:
The CPU can't send its setting to the PCH anymore. BLM_PCH_
OVERRIDE_ENABLE must always be set(!) if the PCH PWM pin is
used (it virtually always is).
We have to use the PCH setting in this case.
o After Lynx Point:
Same as with Broadwell, only BLM_PCH_OVERRIDE_ENABLE is
implied and the bit not implemented anymore.
Change-Id: I1d61d9b3f1802ebe18799fc4d06f1f1d3b54c924
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35897
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Devices behind LPC can expose more buses (e.g. I2C on a super-i/o).
So we should scan buses on LPC devices, too.
Change-Id: I0eb005e41b9168fffc344ee8e666d43b605a30ba
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29474
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The previously provided device path made no difference, all
integrated PCI devices point back to the same chip_info
structure.
Change reduces the exposure of various SA_DEVFN_xx and
PCH_DEVFN_xx from (ugly) soc/pci_devs.h.
Change-Id: Ibf13645fdd3ef7fd3d5c8217bb24d7ede045c790
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35656
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This is a PCI standard register, no need to alias its
definitions under different names.
Change-Id: Iea6b198dd70fe1e49b5dc0824dba62628dedc69a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35521
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The MSRs were already named as PRMRR in broadwell, just
mismatching with the rest of the code. All later devices
use the names PRMRR and UNCORE_PRMRR for these MSRs.
Reflect the name change in structures and local variables.
Change-Id: Id825ba2c083d0def641dd9bf02d3b671d85b1e35
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34825
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This provides stack guards with checking and common
entry into postcar.
The code in cpu/intel/car/romstage.c is candidate
for becoming architectural so function prototype
is moved to <arch/romstage.h>.
Change-Id: I4c5a9789e7cf3f7f49a4a33e21dac894320a9639
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34893
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Variable length arrays were a feature added in C99 that allows the
length of an array to be determined at runtime. Eg.
int sum(size_t n) {
int arr[n];
...
}
This adds a small amount of runtime overhead, but is also very
dangerous, since it allows use of an unlimited amount of stack memory,
potentially leading to stack overflow. This is only worsened in
coreboot, which often has very little stack space to begin with. Citing
concerns like this, all instances of VLA's were recently removed from the
Linux kernel. In the immortal words of Linus Torvalds [0],
AND USING VLA'S IS ACTIVELY STUPID! It generates much more code, and
much _slower_ code (and more fragile code), than just using a fixed
key size would have done. [...] Anyway, some of these are definitely
easy to just fix, and using VLA's is actively bad not just for
security worries, but simply because VLA's are a really horribly bad
idea in general in the kernel.
This patch follows suit and zaps all VLA's in coreboot. Some of the
existing VLA's are accidental ones, and all but one can be replaced with
small fixed-size buffers. The single tricky exception is in the SPI
controller interface, which will require a rewrite of old drivers
to remove [1].
[0] https://lkml.org/lkml/2018/3/7/621
[1] https://ticket.coreboot.org/issues/217
Change-Id: I7d9d1ddadbf1cee5f695165bbe3f0effb7bd32b9
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33821
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
When entry to romstage is via cpu/intel/car/romstage.c
BIST has not been passed down the path for sometime.
Change-Id: I345975c53014902269cee21fc393331d33a84dce
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34908
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
As most platforms will share the subset of enabling
both low RAM WB and high ROM WP MTRRs, provide them
with a single function.
Add possibility for the platform to skip these if
required.
Change-Id: Id1f8b7682035e654231f6133a42909a36e3e15a1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34809
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
There are benefits in placing the postcar_frame structure
in .bss and returning control to romstage_main().
Change-Id: I0418a2abc74f749203c587b2763c5f8a5960e4f9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34808
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Any platform should need just one of these.
Change-Id: Ia0ff8eff152cbd3d82e8b372ec662d3737078d35
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34820
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
It is easier to track CAR_GLOBAL_MIGRATION which is
the approach to be deprecated with the next release.
This change enforces new policy; POSTCAR_STAGE=y is
not allowed together with CAR_GLOBAL_MIGRATION=y.
Change-Id: I0dbad6a14e68bf566ac0f151dc8ea259e5ae2250
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34804
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Almost all platforms force it on. Make it enabled by
default but under user control to optionally disable it.
Change-Id: I6b0f19c8bfd6ffed93023d57a1d28ca6acc06835
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34803
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Martin Roth <martinroth@google.com>
Add explicit CBMEM_STAGE_CACHE option. Rename
CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM to TSEG_STAGE_CACHE.
Platforms with SMM_TSEG=y always need to implement
stage_cache_external_region(). It is allowed to return with a
region of size 0 to effectively disable the cache.
There are no provisions in Kconfig to degrade from
TSEG_STAGE_CACHE to CBMEM_STAGE_CACHE.
As a security measure CBMEM_STAGE_CACHE default is changed to
disabled. AGESA platforms without TSEG will experience slower
S3 resume speed unless they explicitly select the option.
Change-Id: Ibbdc701ea85b5a3208ca4e98c428b05b6d4e5340
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34664
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Let garbage-collection take care of stage_cache_external_region()
when it is not needed and move implementation to a suitable file
already building for needed stages.
Change-Id: Ia6adcc0c8bf6d4abc095ac669aaae876b33ed0f3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34669
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
There will be a possible out of bounds array access if
power_limit_1_time == ARRAY_SIZE(power_limit_time_sec_to_msr), so
prevent that in the index check. This issue was fixed for other cpus in
commit 5cfef13f8d (cpu/intel: Fix out-of-bounds read due to off-by-one
in condition). Based on the discussion for that commit, also remove the
magic constant 28 in favour of the index of the last array element.
Change-Id: Ic3f8735b23a368f8a9395757bd52c2c40088afa1
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Found-by: Coverity CID 1229673
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Prevent implicit cast to pointers.
The compiler doesn't warn about the conversion from
integer to pointer without a cast, because SA_DEV_ROOT
is literally '0' and there seems to be an exception
for that conversion.
Change-Id: I64fc156e3b9f578414ad03a00edb7cf3e33205c1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34544
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
commit bde6d309df (x86: Change MMIO addr in
readN(addr)/writeN(addr, val) to pointer) accidentally changed
the type of reg32 to a u8 *, so change it back to a u32.
Change-Id: If6beff17ed3ddf85889aba5f41d1ba112cd74075
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Found-by: Coverity CID 1402160
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34486
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
We do not want to disguise somewhat complex function
calls as simple macros.
Change-Id: I298f7f9a1c6a64cfba454e919eeaedc7bb2d4801
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34411
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Fix regression with commit
903b40a soc/intel: Replace uses of dev_find_slot()
Platforms where FSP hides PCI devices before enumeration
may halt with error message 'PCI: dev is NULL!'.
The workaround here is to print an error message revealing
the faulty source code function and revert to old behaviour
of dev_find_slot().
Change-Id: I5eab3e7f1993b686103eaa257aacda379dc259fa
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34285
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
