Commit graph

145 commits

Author SHA1 Message Date
Elyes HAOUAS
845652b8bb src/cpu: Use 'include <stdlib.h>' when appropriate
Also:
 add some missing includes spotted by Jenkins.
 Including <types.h>, is supposed to provide stdint and stddef.

Change-Id: I7bd999b59d1c0bdfa5999bf5805576f94c9a2390
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33680
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
2019-10-28 11:57:23 +00:00
Kyösti Mälkki
5a157176dd cpu/x86/lapic: Refactor timer_fsb()
Common apic_timer code in cpu/x86 should not depend on
intel header files.

Change-Id: Ib099921d4b8e561daea47219385762bb00fc4548
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34091
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-19 09:28:55 +00:00
Martin Roth
d57ace259a AUTHORS: Move src/cpu copyrights into AUTHORS file
As discussed on the mailing list and voted upon, the coreboot project
is going to move the majority of copyrights out of the headers and into
an AUTHORS file.  This will happen a bit at a time, as we'll be unifying
license headers at the same time.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: Id6070fb586896653a1e44951a6af8f42f93b5a7b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35184
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-09-10 12:51:22 +00:00
Kyösti Mälkki
c4fdb7b923 cpu/x86: Move some SMM function declarations
Change-Id: I9a4e57f8fd032f2824eab0e5b59d635710e3e24b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34822
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2019-08-13 13:59:34 +00:00
Elyes HAOUAS
63f98f2304 src: Use CRx_TYPE type for CRx
Change-Id: If50d9218119d5446d0ce98b8a9297b23bae65c72
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33816
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-07-02 16:14:36 +00:00
Christian Walter
3b4d0e060c src/cpu/x86/lapic/lapic.c: Add missing newline
Added missing new line to Info Output.

Change-Id: Ic4cd63f231de918fad7cd34724651bf8eb1c8e62
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32987
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2019-05-28 09:24:39 +00:00
Subrata Banik
e091d0efc4 lapic/lapic_cpu_init: Add cpu_add_map_entry() to store default_apic_id
This patch ensures start_cpu() function to store default_apic_id using
common cpu_add_map_entry() function to make cpu_index() implementation
generic.

BRANCH=none
BUG=b:79562868

Change-Id: Iac4d6e9e6e6f9ba644335b4b70da8689c405f638
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32722
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2019-05-13 02:07:09 +00:00
Julius Werner
cd49cce7b7 coreboot: Replace all IS_ENABLED(CONFIG_XXX) with CONFIG(XXX)
This patch is a raw application of

 find src/ -type f | xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g'

Change-Id: I6262d6d5c23cabe23c242b4f38d446b74fe16b88
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-03-08 08:33:24 +00:00
Kyösti Mälkki
065857ee7f arch/io.h: Drop unnecessary include
Change-Id: I91158452680586ac676ea11c8589062880a31f91
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31692
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-03-04 15:08:03 +00:00
Elyes HAOUAS
d731a24ff1 src/cpu/intel: Set get_ia32_fsb function common
Add get_ia32_fsb returns FSB values in MHz of intel's CPUs.
Also add get_ia32_fsb_x3 function. It returns round up 3 * get_ia32_fsb.

Change-Id: I232bf88de7ebba6ac5865db046ce79e9b2f3ed28
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/30103
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-01-27 12:13:09 +00:00
Kyösti Mälkki
2fbb6773e3 arch/x86: Enforce CPU stack alignment
When rmodule is loaded CPU stack alignment is only guaranteed
to 4kiB. Implementation of cpu_info() requires that each
CPU sees its stack aligned to CONFIG_STACK_SIZE.

Add one spare CPU for the stack reserve, such that alignment can
be enforced runtime.

Change-Id: Ie04956c64df0dc7bb156002d3d4f2629f92b340e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/26302
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-01-14 11:59:51 +00:00
Kyösti Mälkki
a706ad5444 arch/x86/lapic: Remove second stack poisoning
It was already done once in c_start.S.

Change-Id: I1cb0ea25251644dbd1127d177247a02ba52bb550
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30796
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2019-01-11 00:53:51 +00:00
Elyes HAOUAS
a9473ecbb1 src: Replace common MSR addresses with macros
Change-Id: I9fba67be12483ea5e12ccd34c648735d409bc8b0
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/29252
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
2018-11-08 11:35:26 +00:00
Arthur Heymans
b3587a60ab cpu/x86/lapic/apic_timer.c: Compile the same code for all stages
timer_monotonic_get() was only compiled in a !__PRE_RAM__ environment.
Clean up the code paths by employing CAR_GLOBAL for the global state
which allows the same code to be used in all stages.

Change-Id: I08fd1795508f76abdab1618585366bf9d06482ff
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/27801
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-03 09:13:20 +00:00
Elyes HAOUAS
e307343b9e src/cpu: Remove unneeded includes
Change-Id: I8fb03ada29b37f96fb02122462dfb8ec7faa9d31
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26732
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2018-06-01 16:27:00 +00:00
Elyes HAOUAS
fc1b49691f cpu/x86: Get rid of device_t
Use of `device_t` has been abandoned in ramstage.

Change-Id: I4c8acebb4a957a9600de15ea844f620a8909977b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/23656
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-04-30 09:23:38 +00:00
Kyösti Mälkki
fdca65572e arch/x86: Fix call for wait_other_cpus_stop()
Fix regression after commit
   0cc2ce4 arch/x86: Clean up CONFIG_SMP and MAX_CPUS test

In case PARALLEL_CPU_INIT=y BSP CPU no longer waited for APs to stop
before proceeding to next bootstates or device initialization.

Change-Id: Ie47e7896ed3d57d98a3ce6766e5c37b6dc22523b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/25874
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-04-28 14:55:25 +00:00
Elyes HAOUAS
f6bbc603fa intel: Use MSR_EBC_FREQUENCY_ID instead of 0x2c
Change-Id: Ib1b761fc417f1bb000f408d3bed5e8666963f51d
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/22603
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Martin Roth <martinroth@google.com>
2017-12-11 01:10:51 +00:00
Marc Jones
c68d410ef7 x86/lapic: Use the existing lapicid() function
coreboot has a lapicid() function, so use it.

Change-Id: I7f536c229f271674c34d722b5db96ce665b720f1
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/22192
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-10-31 02:21:35 +00:00
Edward O'Callaghan
4e2294b429 cpu/x86 asm: Just use the correct op suffix
LLVM AS doesn't support as much GNU junk extensions, data16/32
is almost never needed in truth if we just use the correct op
suffix. So do that here, fixes clang/llvm builds with the
integrated-as toggled on.

Change-Id: I6095d03d0289b418a49a10f135de5eb0e117cae0
Also-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/21218
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-08-31 15:29:52 +00:00
Kyösti Mälkki
e09cd1b787 arch/x86: Sanity checking on HAVE_SMI_HANDLER
Fail at build-time if one of the following happens:

Platform includes SMI handler setup function smm_init()
in the build when configuration has HAVE_SMI_HANDLER=n.

Platform does not implement smm_init_completion() when
HAVE_SMI_HANDLER=y.

Change-Id: I7d61c155d2b7c2d71987980db4c25d520452dabf
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/21097
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2017-08-19 15:34:48 +00:00
Kyösti Mälkki
2e50142f62 i82801dx/gx/ix/jx: Add low-memory backup for S3 path
SMM relocation code overwrite low memory owned by OS.

Change-Id: Ifa3d28bed3d3db65b0707bde62ae2b424a231f1a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19405
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-08-19 15:31:51 +00:00
Kyösti Mälkki
0cc2ce4327 arch/x86: Clean up CONFIG_SMP and MAX_CPUS test
Change-Id: I7c138758707f87c0d7a827b6887c7752d3714cde
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/21088
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-08-19 15:30:51 +00:00
Kyösti Mälkki
ff284f6566 arch/x86: Fix ugly NEED_LAPIC use
Change-Id: I2d6fdfd0465fe5f558daa04c6f980f7226596b55
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/21087
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-08-19 15:30:40 +00:00
Marshall Dawson
fb66e81e6c x86/lapic/secondary.S: Align stack for _secondary_start
At a process _start, the stack is expected to be aligned to a
16-byte boundary.  Upon entry to any function the stack frame
must have the end of any arguments also aligned.  In other words
the value of %esp+4 or %rsp+8 is always a multiple of 16 (1).

Align the stack down inside _secondary_start and preserve proper
alignment for the call to secondary_cpu_init.

Although 4-byte alignment is the minimum requirement for i386,
some AMD platforms use SSE instructions which expect 16-byte.

1) http://wiki.osdev.org/System_V_ABI
   See "Initial Stack and Register State" and "The Stack Frame"
   in the supplements.

BUG=chrome-os-partner:62841664

Change-Id: I72b7a474013e5caf67aedfabeb8d8d2553499b73
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/20537
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-07-20 15:34:21 +00:00
Martin Roth
0fa92b31b0 src/cpu: add IS_ENABLED() around Kconfig symbol references
Some of these can be changed from #if to if(), but that will happen
in a follow-on commmit.

Change-Id: I4e5e585c3f98a129d89ef38b26d828d3bfeac7cf
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20356
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2017-07-13 23:55:25 +00:00
Lee Leahy
dfc8a560d7 cpu/x86: Fix misc. remaining issues detected by checkpatch
Fix the following error and warnings detected by checkpatch.pl:

ERROR: trailing statements should be on next line
WARNING: storage class should be at the beginning of the declaration
WARNING: type 'long unsigned int' should be specified in [[un]signed] [short|int|long|long long] order

TEST=Build and run on Galileo Gen2

Change-Id: I9cfe42cf1836cfd40ffcf67237c818543f508feb
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18845
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-16 04:12:47 +01:00
Lee Leahy
c5917079eb cpu/x86: Wrap lines at 80 columns
Fix the following warning detected by checkpatch.pl:

WARNING: line over 80 characters

TEST=Build and run on Galileo Gen2

Change-Id: I56ea28826963403dc0719f40c13782c56dc97feb
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18844
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-16 04:12:27 +01:00
Lee Leahy
a15d8af140 cpu/x86: Remove braces and else if unnecessary
Fix the following warnings detected by checkpatch.pl

WARNING: braces {} are not necessary for single statement blocks
WARNING: braces {} are not necessary for any arm of this statement
WARNING: else is not generally useful after a break or return

TEST=Build and run on Galileo Gen2

Change-Id: I2d6b22c66d52f5f2d24b15270ad4b52894adebc2
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18842
Tested-by: build bot (Jenkins)
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-16 04:11:45 +01:00
Lee Leahy
8bad6d2f90 cpu/x86: Fix various issues detected by checkpatch.pl
Fix the following errors and warning detected by checkpatch.pl:

ERROR: spaces required around that '=' (ctx:VxV)
ERROR: space prohibited after that open parenthesis '('
ERROR: need consistent spacing around '|' (ctx:WxV)
ERROR: need consistent spacing around '|' (ctx:VxW)
ERROR: spaces required around that '=' (ctx:VxV)
ERROR: spaces required around that '==' (ctx:VxV)
ERROR: spaces required around that ':' (ctx:ExV)
WARNING: space prohibited between function name and open parenthesis '('

TEST=Build and run on Galileo Gen2

Change-Id: I61d08055b207c607d5b7d72b0094ad8e24fbd106
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18840
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
2017-03-16 04:11:10 +01:00
Martin Roth
6add44bd3c src/cpu/x86: Update/Add license headers to all files
Change-Id: I436bf0e7db008ea78e29eaeef10bea101e6c8922
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/18405
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2017-02-22 22:23:11 +01:00
Arthur Heymans
f3018f9def Set the fsb timer correctly for Netburst CPUs
On Netburst (Pentium 4) the fsb cannot be read from
MSR_FSB_FREQ (msr 0xcd). One has to use msr 0x2c instead.

Change-Id: I0beccba2e4a8ec5cd23537b2207f9c49a040fd73
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17832
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2016-12-16 18:29:28 +01:00
Elyes HAOUAS
90ba189744 src/cpu: Remove unnecessary whitespace
Change-Id: I0903b7ca9eada4beacfcdbcacddec23c3515651e
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16850
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
2016-10-07 18:08:25 +02:00
Elyes HAOUAS
cbe7464c62 src/cpu: Add required space before opening parenthesis '('
Change-Id: I7fb9bfcaeec0b9dfd0695d2b2d398fd01091f6bc
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16286
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Omar Pakker
2016-08-28 18:47:23 +02:00
Elyes HAOUAS
d6e96864c9 src/cpu: Capitalize CPU, APIC and IOAPIC typo fix
Change-Id: I82e0736dc6b44cfcc57cdfdc786c85c4b6882260
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16276
Tested-by: build bot (Jenkins)
Reviewed-by: Omar Pakker
2016-08-23 15:43:58 +02:00
Elyes HAOUAS
d82be923b1 src/cpu: Capitalize CPU
Change-Id: I58d5c16de796a91fa14d8db78722024266c09a94
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15934
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
2016-07-31 18:33:06 +02:00
Elyes HAOUAS
585d1a0e7d src/cpu: Capitalize ROM and RAM
Change-Id: I103167a0c39627bcd2ca1d0d4288eb5df02a6cd2
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15935
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-07-31 18:28:27 +02:00
Kyösti Mälkki
a16cd9cdda ACPI S3: Move SMP trampoline recovery
No need to make low memory backup unless we are on
S3 resume path.
Hide those details from ACPI.

Change-Id: Ic08b6d70c7895b094afdb3c77e020ff37ad632a1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15241
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-06-22 11:31:35 +02:00
Aaron Durbin
7f8afe0631 arch/x86: introduce postcar stage/phase
Certain chipsets don't have a memory-mapped boot media
so their code execution for stages prior to DRAM initialization
is backed by SRAM or cache-as-ram. The postcar stage/phase
handles the cache-as-ram situation where in order to tear down
cache-as-ram one needs to be executing out of a backing
store that isn't transient. By current definition, cache-as-ram
is volatile and tearing it down leads to its contents disappearing.
Therefore provide a shim layer, postcar, that's loaded into
memory and executed which does 2 things:

1. Tears down cache-as-ram with a chipset helper function.
2. Loads and runs ramstage.

Because those 2 things are executed out of ram there's no issue
of the code's backing store while executing the code that
tears down cache-as-ram. The current implementation makes no
assumption regarding cacheability of the DRAM itself. If the
chipset code wishes to cache DRAM for loading of the postcar
stage/phase then it's also up to the chipset to handle any
coherency issues pertaining to cache-as-ram destruction.

Change-Id: Ia58efdadd0b48f20cfe7de2f49ab462306c3a19b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14140
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-03-23 14:24:30 +01:00
Alexandru Gagniuc
66bbb3187e */Makefile.inc: Compile files needed by uart8250 in x86 bootblock
These files provide symbols needed by console and uart drivers. This
was not an issue in the past, as we were not setting up a C
environment this early in the boot process.

Change-Id: Ied5106ac30a68971c8330e8f8270ab060994a89d
Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com>
Reviewed-on: https://review.coreboot.org/12869
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-01-21 05:37:48 +01:00
Damien Zammit
149c4c5d01 x86/smm: Initialize SMM on some CPUs one-by-one
We currently race in SMM init on Atom 230 (and potentially
other CPUs). At least on the 230, this leads to a hang on
RSM, likely because both hyperthreads mess around with
SMBASE and other SMM state variables in parallel without
coordination. The same behaviour occurs with Atom D5xx.

Change it so first APs are spun up and sent to sleep, then
BSP initializes SMM, then every CPU, one after another.

Only do this when SERIALIZE_SMM_INITIALIZATION is set.
Set the flag for Atom CPUs.

Change-Id: I1ae864e37546298ea222e81349c27cf774ed251f
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/6311
Tested-by: build bot (Jenkins)
Tested-by: BSI firmware lab <coreboot-labor@bsi.bund.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-12-02 00:38:45 +01:00
Timothy Pearson
6b6c653ce7 cpu/x86/lapic: Add stack overrun detection
Change-Id: I03e43f38e0d2e51141208ebb169ad8deba77ab78
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11963
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-11-14 23:38:29 +01:00
Patrick Georgi
a73b93157f tree: drop last paragraph of GPL copyright header
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>
2015-10-31 21:37:39 +01:00
Aaron Durbin
75c51d9af1 x86: add standalone verstage support
To support x86 verstage one needs a working buffer for
vboot. That buffer resides in the cache-as-ram region
which persists across verstage and romstage. The current
assumption is that verstage brings cache-as-ram up
and romstage tears cache-as-ram down. The timestamp,
cbmem console, and the vboot work buffer are persistent
through in both romstage and verstage. The vboot
work buffer as well as the cbmem console are permanently
destroyed once cache-as-ram is torn down. The timestamp
region is migrated. When verstage is enabled the assumption
is that _start is the romstage entry point. It's currently
expected that the chipset provides the entry point to
romstage when verstage is employed. Also, the car_var_*()
APIs use direct access when in verstage since its expected
verstage does not tear down cache-as-ram. Lastly, supporting
files were added to verstage-y such that an x86 verstage
will build and link.

BUG=chrome-os-partner:44827
BRANCH=None
TEST=Built and booted glados using separate verstage.

Change-Id: I097aa0b92f3bb95275205a3fd8b21362c67b97aa
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11822
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-10-14 17:07:52 +00:00
Jonathan A. Kollasch
98fc2e9be1 indent style fix for lapic_cpu_init.c
Change-Id: I2821aaed1bc6324e671f68e4e4effb9dd006dcd9
Signed-off-by: Jonathan A. Kollasch <jakllsch@kollasch.net>
Reviewed-on: http://review.coreboot.org/10922
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-07-17 17:53:06 +02:00
Patrick Georgi
5a2bd0b693 Revert "sandy/ivybridge: use LAPIC timer in SMM"
This reverts commit a3aa8da2ac.

Chrome OS builds require the monotonic timer API in SMM for ELOG_GSMI,
but sandy/ivy doesn't provide it. The commit tried to work around that
by using generic LAPIC code instead, but this leads to multiple
definition errors in other configurations (and it may be unreliable once
the OS reconfigured the APIC timers anyhow).

This fixes the situation for the non-ELOG_GSMI case (which is more or
less everybody but Chrome OS). ELOG_GSMI requires a separate fix.

Change-Id: If4d69a122b020e5b2d2316b8da225435f6b2bef0
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10811
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-06 22:13:07 +02:00
Stefan Reinauer
a3aa8da2ac sandy/ivybridge: use LAPIC timer in SMM
This fixes an issue with using the flash driver in SMM for writing
the event log through an SMM call.

Change-Id: If18c77634cca4563f770f09b0f0797ece24308ce
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10762
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-07-02 08:34:40 +02:00
Stefan Reinauer
e021dea777 cpu: x86 port to 64bit
Change-Id: Ib1c6732d3a338f6d898fadc19e5af59032343451
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Signed-off-by: Scott Duplichan <scott@notabs.org>
Reviewed-on: http://review.coreboot.org/10580
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-06-20 18:16:54 +02:00
Patrick Georgi
b890a1228d Remove address from GPLv2 headers
As per discussion with lawyers[tm], it's not a good idea to
shorten the license header too much - not for legal reasons
but because there are tools that look for them, and giving
them a standard pattern simplifies things.

However, we got confirmation that we don't have to update
every file ever added to coreboot whenever the FSF gets a
new lease, but can drop the address instead.

util/kconfig is excluded because that's imported code that
we may want to synchronize every now and then.

$ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *MA[, ]*02110-1301[, ]*USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 59 Temple Place[-, ]*Suite 330, Boston, MA *02111-1307[, ]*USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.:Foundation, Inc.:" {} +
$ find * -type f
	-a \! -name \*.patch \
	-a \! -name \*_shipped \
	-a \! -name LICENSE_GPL \
	-a \! -name LGPL.txt \
	-a \! -name COPYING \
	-a \! -name DISCLAIMER \
	-exec sed -i "/Foundation, Inc./ N;s:Foundation, Inc.* USA\.* *:Foundation, Inc. :;s:Foundation, Inc. $:Foundation, Inc.:" {} +

Change-Id: Icc968a5a5f3a5df8d32b940f9cdb35350654bef9
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/9233
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
2015-05-21 20:50:25 +02:00
Julius Werner
ec5e5e0db2 New mechanism to define SRAM/memory map with automatic bounds checking
This patch creates a new mechanism to define the static memory layout
(primarily in SRAM) for a given board, superseding the brittle mass of
Kconfigs that we were using before. The core part is a memlayout.ld file
in the mainboard directory (although boards are expected to just include
the SoC default in most cases), which is the primary linker script for
all stages (though not rmodules for now). It uses preprocessor macros
from <memlayout.h> to form a different valid linker script for all
stages while looking like a declarative, boilerplate-free map of memory
addresses to the programmer. Linker asserts will automatically guarantee
that the defined regions cannot overlap. Stages are defined with a
maximum size that will be enforced by the linker. The file serves to
both define and document the memory layout, so that the documentation
cannot go missing or out of date.

The mechanism is implemented for all boards in the ARM, ARM64 and MIPS
architectures, and should be extended onto all systems using SRAM in the
future. The CAR/XIP environment on x86 has very different requirements
and the layout is generally not as static, so it will stay like it is
and be unaffected by this patch (save for aligning some symbol names for
consistency and sharing the new common ramstage linker script include).

BUG=None
TEST=Booted normally and in recovery mode, checked suspend/resume and
the CBMEM console on Falco, Blaze (both normal and vboot2), Pinky and
Pit. Compiled Ryu, Storm and Urara, manually compared the disassemblies
with ToT and looked for red flags.

Change-Id: Ifd2276417f2036cbe9c056f17e42f051bcd20e81
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: f1e2028e7ebceeb2d71ff366150a37564595e614
Original-Change-Id: I005506add4e8fcdb74db6d5e6cb2d4cb1bd3cda5
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/213370
Reviewed-on: http://review.coreboot.org/9283
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Tauner <stefan.tauner@gmx.at>
Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-04-06 22:05:01 +02:00