Some CPUs (Sandybridge) seem to require this, and it does not hurt
on other CPUs.
Change-Id: I4fdb281b2b684ab5fea999aae28ca08dce24da4d
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/869
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Traditionally coreboot's SMM handler runs in ASEG (0xa0000),
"behind" the graphics memory. This approach has two issues:
- It limits the possible size of the SMM handler (and the
number of CPUs supported in a system)
- It's not considered a supported path anymore in newer CPUs.
Change-Id: I9f2877e46873ab2ea8f1157ead4bc644a50be19e
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Acked-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/842
Reviewed-by: Peter Stuge <peter@stuge.se>
Tested-by: build bot (Jenkins)
From wikipedia:
Intel Turbo Boost is a technology implemented by Intel in certain
versions of their Nehalem- and Sandy Bridge-based CPUs, including Core
i5 and Core i7 that enables the processor to run above its base
operating frequency via dynamic control of the CPU's "clock rate".
It is activated when the operating system requests the highest
performance state of the processor.
Change-Id: I166ead7c219083006c2b05859eb18749c6fbe832
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/844
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The socket mPGA604 is for P4 Xeon which to my knowledge is always
HT-enabled. I assume the existing usage of car/cache_as_ram.inc
on socket_mPGA604, namely the Tyan S2735, as broken.
Existing car/cache_as_ram.inc has invalid SIPI vector and it does
not initialise AP CPU's to activate L2 cache.
Other mPGA604 boards are not affected, as they have not been
converted to CAR.
Change-Id: I7320589695c7f6a695b313a8d0b01b6b1cafbb04
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/607
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
some blank changing is integrated into the previous patches, which hold
the unsplitted diff hunk.
Change-Id: If9e5066927c5e27fee7ac8422dbfbf2cbeac7df5
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/625
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
Use CPUID to get MAXPHYADDR and set MTRR masks correctly.
Also only BSP CPU clears MTRRs and initializes its Local APIC.
Change-Id: I89ee765a17ec7c041284ed402f21d9a969d699bd
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/686
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This improvement of CAR code starts the sibling CPU processors and
clears their cache disable bits (CR0.CD) in case a hyper-threading
CPU is detected.
Change-Id: Ieabb86a7c47afb3e178cc75bb89dee3efe0c3d18
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/604
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Most or many Xeons have no MSR 0x11e.
I have previously tested that a HT-enabled P4 (model f25) can
execute this but will not have cache-as-ram enabled. Should work
for non-HT P4.
Change-Id: I28cbfa68858df45a69aa0d5b050cd829d070ad66
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/644
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
For a hyper-threading processor, enabling cache requires that both the
BSP and AP CPU clear CR0.CD (Cache Disable) bit. For a Cache-As-Ram
implementation, partial multi-processor initialisation precedes
raminit and AP CPUs' 16bit entry must be run from ROM.
The AP CPU can only start execute real-mode code at a 4kB aligned
address below 1MB. The protected mode entry code for AP is identical
with the BSP code, which is already located at the top of bootblock.
This patch takes the simplest approach and aligns the bootblock
16 bit entry at highest possible 4kB boundary below 1MB.
The symbol ap_sipi_vector is tested to match CONFIG_AP_SIPI_VECTOR
used by the CAR code in romstage. Adress is not expected to ever
change, but if it does, link will fail.
Change-Id: I82e4edbf208c9ba863f51a64e50cd92871c528ef
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/454
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Delete dead CAR code and whitespace fixes.
Replace cryptic 32bit hex values with existing LAPIC definitions.
Do not assume state of direction flag before "rep" instruction.
Do not load immediate values on temporary registers when not needed.
Parameter pushed on stack was not popped (or flushed) after returning
from call. This is a sort-of memory leak if multiple call's are
implemented the same way.
Change-Id: Ibb93e889b3a0af87b89345c462e331881e78686a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/643
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Cache was enabled for the last 4 MB below 4 GB when ramstage is
loaded. This does not cover the case of a 8 MB Flash and could
overlap with some system device placed at high memory.
Use the actual device size for the cache region. Mainboard
may override this with Kconfig CACHE_ROM_SIZE if necessary.
Change-Id: I622223b1e2af0b3c1831f3570b74eacfde7189dc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/641
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Copy model_6ex CAR as car/cache_as_ram_ht.inc to be extended
with hyper-threading CPU support.
Change-Id: I09619363e714b1ebf813932b0b22123c1d89010e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/606
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This affects the algorithm when determining when to
transform a range into a larger range with a hole.
It is needed when for when I switch on an 8MB TSEG
and cause the memory maps to go crazy.
Also add header defines for the SMRR.
Change-Id: I1a06ccc28ef139cc79f655a8b19fd3533aca0401
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: http://review.coreboot.org/765
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
With >= 4GB memory installed we get a memory map split in the middle
due to remap that has boundaries that are inconveniently aligned for
MTRRs due to the various UMA regions.
0000MB-2780MB 2780MB RAM (writeback)
2780MB-2782MB 2MB TSEG (uncached/SMRR)
2782MB-2784MB 2MB GFX GTT (uncached)
2784MB-2816MB 32MB GFX UMA (uncached)
2816MB-4096MB 1280MB EMPTY (N/A)
4096MB-5368MB 1272MB RAM (writeback)
5368MB-5376MB 8MB ME UMA (uncached)
The default MTRR allocation method of trying to cover everything
with one MTRR and then carve out a single uncached region does
not work for the GPU aperture which needs write-combining type,
and it also has issues trying to cover the uneven boundaries
in the avaiable variable MTRRs.
My goal was to make a minimal set of changes and avoid modifying
behavior on existing systems with an algorithm that is not always
optimal for a typical memory layout. So the flag 'above4gb=2'
will change these allocation behaviors:
1) Detect the number of available variable MTRRs rather than
limiting to hardcoded value. We need every last MTRR.
2) Don't try to cover all RAM with one MTRR, instead let each
RAM region get covered independently.
3) Don't assume uma_memory_base is part of the last region
and increase the size of that region. In this case the UMA
region is carved out from the lower memory region and it is
already declared as part of the ram region.
4) If a memory region can't be covered with MTRRs >= 16MB then
instead make a larger region and trim it with uncached MTRRs.
Change-Id: I5a60a44ab6d3ae2f46ea6ffa9e3677aaad2485eb
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: http://review.coreboot.org/761
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Future CPUs will require TSEG use for SMM
Change-Id: I1432569ece4371d6e12c997e90d66c175fa54c5c
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: http://review.coreboot.org/766
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Do not use printk on the running thread after it has been sent
the INIT IPI, execution may halt with console spinlock held.
Change-Id: I64608935ea740fb827fa0307442f3fb102de7a08
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/776
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
Only the BSP CPU was able to start its hyper-threading CPU siblings.
When an AP CPU attempts this it calls start_cpu() within start_cpu(),
deadlocking the system with start_cpu_lock.
At the time intel_sibling_init() is run, the BSP CPU is still
walking the cpu_bus linked list in lapic_cpu_init: start_other_cpus().
A sibling CPU appended at the end of this list will get started.
Also fail compile with #error if SERIAL_CPU_INIT==0, as microcode
updates on hyper-threading sibling CPUs must be serialized.
Tested with HT-enabled P4 Xeons on dual-socket604 platform.
Change-Id: I0053f58f49ed604605ce0a55e826d3e1afdc90b6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/775
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
It was not obvious which CAR was compiled in. Also build would fail
if a socket included two models with both having an include for CAR.
Change-Id: I000c2e24807c3d99347a43d120333c13fbf91af4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/626
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Also any CPU_AMD_AGESA_FAMILYxx selects CPU_AMD_AGESA, so remove
the explicit selects from the mainboards.
Change-Id: I4d71726bccd446b0f4db4e26448b5c91e406a641
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/792
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Kconfig leaked XIP_ROM_SIZE to other platforms and also
defined obsolete option XIP_ROM_BASE.
Alias AMD_AGESA as NORTHBRIDGE_AMD_AGESA.
Break the circular dependency with family15 Kconfig.
Change-Id: Ic7891012220e1bef758a5a39002b66971d5206e3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/773
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
So set their XIP configuration to ROM_SIZE.
Change-Id: I6c1abccec3b1d7389c85df55343ff0fc68a61eec
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/797
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
The original comment says it's a Via C3 and not Epia requirement
to deliver IOAPIC interrupts on APIC serial bus.
Change-Id: I73c55755e0ec1ac5756b4ee7ccdfc8eb93184e4f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/435
Tested-by: build bot (Jenkins)
In a case of CS & 0x0fff != 0x0, lidt memory operand does not point
to nullidt, this can raise an exception and shutdown the CPU.
When an AP CPU receives 8-bit Start-Up IPI vector yzH, it starts
execute at physical address 000yz000H. Seems this translates to
either yz00:0000 or y000:z000 (CS:IP), depending of the CPU model.
With the change entry16.inc is relocatable as the commentary suggests
and can be used as ap_sipi_vector on SMP systems.
Change-Id: I885a2888179700ba6e2b11d4f2d6a64ddea4c2dc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/707
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Because it's included everywhere anyways.
Change-Id: I99a9e6edac08df57c50ef3a706fdbd395cad0abc
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/691
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Also mark the corresponding lint test stable.
Change-Id: Ib7c9ed88c5254bf56e68c01cdbd5ab91cd7bfc2f
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/772
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
The MTRR check for WB TOM2 setting was only checking revF, not extended family
revisions. All families above revf indicate 0xf in the family field and have
additional bits in the extended family field.
Change-Id: I93d719789acda6b7c42de7fd6d4bad2da866a25f
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: http://review.coreboot.org/627
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Fix issues reported by new lint test.
Change-Id: I077a829cb4a855cbb3b71b6eb5c66b2068be6def
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/646
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Kconfig directives to select chip drivers for compile literally
match the chip directory names capitalized and underscored.
Note: CPU_INTEL_CORE2 was used on both model_6fx and model_1067x.
Change-Id: I8fa5ba71b14dcce79ab2a2c1c69b3bc36edbdea0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/618
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Added a macro in the post code list, which replaces hard coded
value in cpu/x86/cache/cache.c
Change-Id: I27cb27827272584a8a17a41c111e2dc155196a97
Signed-off-by: Vikram Narayanan <vikram186@gmail.com>
Reviewed-on: http://review.coreboot.org/572
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
In order to use SSE+MMX optimized payloads we don't want to disable SSE+MMX
instructions in the CPU after romstage.
Change-Id: I51aeb01f04492ad7bc8b1fe181a4ae17fe0ca61e
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/553
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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>
Change-Id: If681a33deb7df752b37c6a8a20482d3c374af936
Signed-off-by: Nils Jacobs <njacobs8@adsltotaal.nl>
Reviewed-on: http://review.coreboot.org/528
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Philip Prindeville <philipp@redfish-solutions.com>
This function prevents the linker from choosing the right
get_cst_entries(), preventing writing the _CST tables.
Change-Id: I4bc0168aee110171faeaa081f217dfd1536bb821
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/496
Tested-by: build bot (Jenkins)
I misunderstood how kconfig select works. It needs to be selected with a config option. Moved the select to the correct location.
Change-Id: If9b1e21e6cbc5af4671efb76cf87dd18dbbe2234
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: http://review.coreboot.org/487
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This fixes problems in AP init when multiple APs are trying to access
PCI config space. All Fam10 CPUs setup and support MMCONF.
Change-Id: I00a25bbf4e4152c89024f14a3c4c1c36b48d0128
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: http://review.coreboot.org/455
Tested-by: build bot (Jenkins)
Reviewed-by: Alec Ari <neotheuser@ymail.com>
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>
