The current code uses static values for the physical address size
supported by a CPU. This isn't always the right value: I.e. on
model_6[ef]x Core (2) Duo CPUs physical address size is 36, while
Xeons from the same family have 38 bits, which results in invalid
MTRR setup. Fix this by getting the right number from CPUID.
Change-Id: If019c3d9147c3b86357f0ef0d9fda94d49d811ca
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/529
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Detection of a CPU being a BSP CPU is not dependent of the existence
of northbridge and/or southbridge init code in the bootblock.
Even if CONFIG_LOGICAL_CPUS==0, boot_cpu() can get executed on an AP
CPU of a hyper-threading CPU and needs to return actual BSP bit from
MSR.
Change-Id: I9187f954bb357ba1dbd459cfe11cc96cb7567968
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/447
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Following files were no longer used in the build and are deleted:
src/arch/x86/init/entry.S
src/arch/x86/init/ldscript.ld
Also fix ugly whitespace in code copyrights and comments.
Change-Id: Ia6360b0ffc227f372d5f997495697a101f7ad81b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/440
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Relocate early post_code() so it gets executed and does not corrupt
BIST at %eax.
Change-Id: Ieeebcb23f7c327e501b410eaa60d1e49110ee988
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/439
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
The base is now calculated automatically, and all mentions of that
config option were typical anyway (4GB - XIP_ROM_SIZE).
Change-Id: Icdf908dc043719f3810f7b5b85ad9938f362ea40
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/366
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
That value is now generated from a code address and CONFIG_XIP_ROM_SIZE.
This works as MTRRs are fully specified by their size and any address
within the range.
Change-Id: Id35d34eaf3be37f59cd2a968e3327d333ba71a34
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/348
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
According to Rudolf Marek putting a memory instruction between
the CR0 write and the jmp in protected mode switching might hang the
machine. Move it after the jmp.
There might be a better solution for this, such as enabling the cache, as
keeping it disabled does not prevent cache poisoning attacks, so there is no
real point.
However, Intel docs say that SMM code in ASEG is always running uncached, so
we might want to consider running SMM out of TSEG instead, as well.
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Change-Id: Id396acf3c8a79a9f1abcc557af6e0cce099955ec
Reviewed-on: http://review.coreboot.org/283
Reviewed-by: Sven Schnelle <svens@stackframe.org>
Tested-by: build bot (Jenkins)
Load an IDT with NULL limit to prevent the 16bit IDT being used
in protected mode before c_start.S sets up a 32bit IDT when entering
ram stage.
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Change-Id: I8d048c894c863ac4971fcef8f065be6b899e1d3e
Reviewed-on: http://review.coreboot.org/259
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
This commit adds in some more fixes to AMD F14 compile
warnings. The change in the mtrr.c file is in prep-
aration for changes yet to com, but it is currently
innocuous.
Change-Id: I6b204fe0af16a97d982f46f0dfeaccc4b8eb883e
Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/133
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This change separates out changes that were initially found
in the commit for XHCI and AHCI changes to "arch/x86/Makefile.
inc". It also corrects a comment. The SSE3 dependent code
adds a pair of CR4 access functions and a blob of code that
re-sets CR4.OSFXSR and CR4.OSXMMEXCPT.
Change-Id: Id97256978da81589d97dcae97981a049101b5258
Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/113
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Align the spinlock to the 4 byte boundary (CPU will guarantee atomicity of XCHG).
While at it add the PAUSE instruction to spinlock loop to hint the CPU we are just
spinlocking. The rep nop could not be used because "as" complains that rep is used
without string instructions.
Change-Id: I325cd83de3a6557b1bee6758bc151bc81e874f8c
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Reviewed-on: http://review.coreboot.org/81
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Fixes spurious SMI crashes i've seen, and ACPI/SMM interaction.
For reference, the mail i've sent to ML with the bugreport:
whenever i've docked/undocked the thinkpad from the docking station,
i had to do that twice to get the action actually to happen.
First i thought that would be some error in the ACPI code. Here's a
short explanation how docking/undocking works:
1) ACPI EC Event 0x37 Handler is executed (EC sends event 0x37 on dock)
2) _Q37 does a Trap(SMI_DOCK_CONNECT). Trap is declared as follows:
a) Store(Arg0, SMIF) // SMIF is in the GNVS Memory Range
b) Store(0, 0x808) // Generates I/O Trap to SMM
c) // SMM is executed
d) Return (SMIF) // Return Result in SMIF
I've verified that a) is really executed with ACPI debugging in the
Linux Kernel. It writes the correct value to GNVS Memory. After that,
i've logged the SMIF value in SMM, which contains some random (or
former) value of SMIF.
So i've added the GNVS area to /proc/mtrr which made things work.
I've also tried a wbinvd() in SMM code, with the same result.
After reading the src/cpu/x86/smm/smmhandler.S code, i've recognized
that it starts with:
movw $(smm_gdtptr16 - smm_handler_start +
SMM_HANDLER_OFFSET), %bx
data32 lgdt %cs:(%bx)
movl %cr0, %eax
andl $0x7FFAFFD1, %eax /* PG,AM,WP,NE,TS,EM,MP = 0 */
orl $0x60000001, %eax /* CD, NW, PE = 1 */
movl %eax, %cr0
/* Enable protected mode */
data32 ljmp $0x08, $1f
...which disables caching in SMM code, but doesn't flush the cache.
So the problem is:
- the linux axpi write to the SMIF GNVS Area will be written to Cache,
because GNVS is WB
- the SMM code runs with cache disabled, and fetches SMIF directly from
Memory, which is some other value
Possible Solutions:
- enable cache in SMM (yeah, cache poisoning...)
- flush caches in SMM (really expensive)
- mark GNVS as UC in Memory Map (will only work if OS
really marks that Area as UC. Checked various vendor BIOSes, none
of them are marking NVS as UC. So this seems rather uncommon.)
- flush only the cache line which contains GNVS. Would fix this
particular problem, but users/developers could see other Bugs like
this. And not everyone likes to debug such problems. So i won't like
this solution.
Change-Id: Ie60bf91c5fd1491bc3452d5d9b7fc8eae39fd77a
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/39
Tested-by: build bot (Jenkins)
Overwriting the SMM Area on resume leaves us with
all variables cleared out, i.e., the GNVS pointer
is no longer available, which makes SMIF function
calls impossible.
Change-Id: I08ab4ffd41df0922d63c017822de1f89a3ff254d
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/34
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
example.
This newer version reflects the recent changes to further simplify the console
code and partly gets rid of some hacks in the previous version.
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6544 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
for that instead. This also allows using non-uart8250 consoles for smi
debugging.
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6501 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
cache that range instead of the first 1Meg. This reduces boot time by
about 1 second on epia-cn.
This patch also adds a MTRRphysMaskValid bit definition.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Acked-by: Stefan Reinauer <stepan@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6272 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
which uses it.
Compiles, but not boot tested lately.
Many things missing (eg. SMM support, proper ACPI, ...)
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6198 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- move some variables where they belong
Signed-off-by: Stefan Reinauer <stepan@coreboot.org>
Acked-by: Stefan Reinauer <stepan@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6186 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
initializing VGA happens pretty much as the last thing before starting the
payload. Hence, drop VGA console support, as we did in coreboot v3.
- Drop VGA and BTEXT console support.
Console is meant to be debugging only, and by the time graphics comes up
99% of the risky stuff has already happened. Note: This patch does not remove
hardware init but only the actual output functionality.
The ragexl driver needs some extra love, but that's for another day
- factor out die() and post()
- drop some leftover RAMBASE < 0x100000 checks.
Signed-off-by: Stefan Reinauer <stepan@coreboot.org>
Acked-by: QingPei Wang<wangqingpei@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6111 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
-- When building for UMA, reduce the limit for DRAM below 4GB
from E0000000 to C0000000. This is needed to accomodate the
UMA frame buffer.
-- Correct problem where msr C0010010 bits 21 and 22 (MtrrTom2En
and Tom2ForceMemTypeWB) are not set consistently across cores.
-- Enable TOM2 only if DRAM is present above 4GB.
-- Use AMD Tom2ForceMemTypeWB feature to avoid the need for
variable MTRR ranges above 4GB.
-- Add above4gb flag argument to function x86_setup_var_mtrrs. Clearing
this flag causes x86_setup_var_mtrrs() to omit MTRR ranges for
DRAM above 4GB. AMD systems use this option to conserve MTRRs.
-- Northbridge.c change to deduct UMA memory from DRAM size reported
by ram_resource. This corrects a problem where mtrr.c generates an
unexpected variable MTRR range.
-- Correct problem causing build failure when CONFIG_GFXUMA=1 and
CONFIG_VAR_MTRR_HOLE=0.
-- Reserve the UMA DRAM range for AMD K8 as is already done for AMD
family 10h.
Tested with mahogany on ECS A780G-GM with 2GB and 4GB.
Tested with mahogany_fam10 on ECS A780G-GM with 2GB and 4GB.
Signed-off-by: Scott Duplichan <scott@notabs.org>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6067 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
currently restricted to recent model AMD processors, though it could be applied to others after successful testing.
Signed-off-by: Scott Duplichan <scott@notabs.org>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5967 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
at the same time let the user specify sources instead
of object files:
- objs becomes ramstage-srcs
- initobjs becomes romstage-srcs
- driver becomes driver-srcs
- smmobj becomes smm-srcs
The user servicable parts are named accordingly:
ramstage-y, romstage-y, driver-y, smm-y
Also, the object file names are properly renamed now, using
.ramstage.o, .romstage.o, .driver.o, .smm.o suffixes consistently.
Remove stubbed out via/epia-m700 dsdt/ssdt files - they didn't
easily fit in the build system and aren't useful anyway.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coreystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5886 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
few more code comments to src/cpu/x86/*.inc files.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5859 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Noticed-by: Uwe Hermann
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5799 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
For boards where timer2 is unusable, there's still the IO based
initialization available using the Kconfig option TSC_CALIBRATE_WITH_IO
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Kevin O'Connor <kevin@koconnor.net>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5787 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5780 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Fix up converted mainboards that still used early_mtrr_init()
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5678 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- make SMM relocation debugging Kconfig accessible
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5676 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
while others dislike them being extra commits, let's clean them up once and
for all for the existing code. If it's ugly, let it only be ugly once :-)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
(which could at some time hold global post code definitions, too)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5498 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
the rest of the code unreadable.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5426 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
this patch also slightly changes it so we have a single cache_as_ram.inc which
requires no "help" from cache_as_ram_post.c and cache_as_ram_disable.c (or
worse, a lot of cruft hacked right into romstage.c like on tyan s2735)
Now all CAR code except the AMD Opteron/Athlon64 CAR code follows the new
simpler scheme. I'll gladly leave src/cpu/amd/car to someone else ;-)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5423 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
src/arch/i386/Makefile.inc to the respective CPU directories.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5411 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
- set them to span the last 64k, instead of the last 128k
by default
- fixes via CAR for tiny bootblock
- enabled tiny bootblock for via/vt8454c
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5409 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
The tyan s2895 is down to 3 warnings, 2 of which are caused by #warning.
The 1000 ways of how the AMD code waits for the cores to be started up
are a real pain for the brain.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5396 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
drop some non-car code from amd/dualcore (there is no AMD dualcore without CAR)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5392 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
