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For the ram init of Intel Nehalem ram init we need a udelay implementation.
Use common TSC framework for it as Intel Haswell already does.
Change-Id: I360a6db1ec1ba32c92698a7d6f6968c93ead5c52
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4043
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
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If romstage does not make cbmem_initialize() call, linker should
optimize the code for CAR migration away.
This simplifies design of CBMEM console by a considerable amount.
As console buffer is now migrated within cbmem_initialize() call there
is no longer need for cbmemc_reinit() call made at end of romstage.
Change-Id: I8675ecaafb641fa02675e9ba3f374caa8e240f1d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3916
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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Change-Id: I87b454c748cf885491d5b38bfe53a2ec0e9f38c5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3910
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Aaron Durbin <adurbin@google.com>
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This retrieves back the value stored with store_initial_timestamp()
in the bootblock for southbridge.
Change-Id: I377c823706c33ed65af023d20d2e4323edd31199
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3908
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Aaron Durbin <adurbin@google.com>
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The added device.h file was indirectly picked from cpu.h, which will
have this include removed in a follow-up patch.
Change-Id: Ifc0a4800de3b1ef220ab1034934f583be8c527b0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3826
Tested-by: build bot (Jenkins)
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Change-Id: I69c46648de0689e9bed84c7726906024ad65e769
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/3729
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I4786bff41fef924c72087c354e394bdc1996cadc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3764
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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Store EHCI Debug Port runtime variables in CAR_GLOBAL.
For platforms without CAR_MIGRATION, logging on EHCI Debug Port is
temporarily lost when CAR is torn down at end of romstage.
On model_2065x and model_206ax ehci_debug_info was overlapping the MRC
variable region and additionally migration used incorrect size for
the structure.
Change-Id: I5e6c613b8a4b1dda43d5b69bd437753108760fca
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3475
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Now that we are executing VbInit() in coreboot we can end up
in a situation where the recovery reason is consumed during
VbInit (end of romstage) and then the EC is rebooted to RO
during ramstage EC init, thereby losing the recovery reason.
Two possiblities are to remove the EC check+reboot from ramstage
and let it happen in depthcharge. This however means that the
system has to boot all the way into depthcharge and then reboot
the EC and the system again.
Instead if we do a check in romstage before VbInit() is called
then we can reboot the EC into RO early and avoid booting all
the way to depthcharge first.
This change adds a ramstage version the EC init function and
calls it from the shared romstage code immediately after the
PCH decode windows are setup.
Change-Id: I30d2a0c7131b8e4ec30c63eea36944ec111a8fba
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/3744
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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With this patch, output on usbdebug also includes the section of
MTRR setups for every CPU. This makes usbdebug output almost identical
with that of serial port and CBMEM console.
Tested with model_206ax. Also tested previously on model_f2x which does
not have these disable/enable calls in model_f2x_init() without detected issues.
Change-Id: Idfd0e93439907b17255633658195d698feab3895
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3423
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
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Change-Id: I7ecc394b1e5bc0b8b85a8afac22efc0befe2d36a
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/3395
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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There were assumptions being made in the haswell
MP and SMM code which assumed the APIC id space
was 1:1 w.r.t. cpu number. When hyperthreading is
disabled the APIC ids of the logical processors
are all even. That means the APIC id space is sparse.
Handle this situation.
Change-Id: Ibe79ab156c0a171208a77db8a252aa5b73205d6c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3353
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Commit »haswell: 24MHz monotonic time implementation« (c46cc6f1) [1]
added the Kconfig variable `MONOTONIC_TIMER_MSR` with a help text,
but only used one space instead of the suggested two spaces for
indentation. So add one space.
»Lines under a "config" definition are indented with one tab, while
help text is indented an additional two spaces.« [2]
[1] http://review.coreboot.org/3153
[2] https://www.kernel.org/doc/Documentation/CodingStyle
(Chapter 10: Kconfig configuration files)
Change-Id: I39cf356bfd54c66a2f1b837c6667dcc915e41f29
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/3262
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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The haswell code allows for vboot ramstage verification.
However, that code path relies on accessing global cache-as-ram
variables after cache-as-ram is torn down. In order to avoid
that situation enable cache-as-ram migration.
cbmemc_reinit() no longer needs to be called from romstage
because it is invoked automatically by the cache-as-ram
migration infrastructure.
Change-Id: I08998dca579c167699030e1e24ea0af8802c0758
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3236
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Thread support is added for the x86 architecture. Both
the local apic and the tsc udelay() functions have a
call to thread_yield_microseconds() so as to provide an
opportunity to run pending threads.
Change-Id: Ie39b9eb565eb189676c06645bdf2a8720fe0636a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3207
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Commit "romcc: Don't fail on function prototypes" (11a7db3b) [1]
made romcc not choke on function prototypes anymore. This
allows us to get rid of a lot of ifdefs guarding __ROMCC__ .
[1] http://review.coreboot.org/2424
Change-Id: Ib1be3b294e5b49f5101f2e02ee1473809109c8ac
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/3216
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Since this parameter is not used anymore, drop it from
all calls to copy_and_run()
Change-Id: Ifba25aff4b448c1511e26313fe35007335aa7f7a
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/3213
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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When the haswell MP/SMM code was developed it was using a coreboot
repository that did not contain the asmlinkage macro. Now that the
asmlinkage macro exists use it.
BUG=None
BRANCH=None
TEST=Built and booted.
Change-Id: I662f1b16d1777263b96a427334fff8f98a407755
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3203
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Instead of using the local apic timer for udelay() use the tsc.
That way SMM, romstage, and ramstage all use the same delay
functionality.
Change-Id: I024de5af01eb5de09318e13d0428ee98c132f594
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3169
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Haswell ULT devices have a 24MHz package-level counter. Use
this counter to provide a timer_monotonic_get() implementation.
Change-Id: Ic79843fcbfbbb6462ee5ebd12b39502307750dbb
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3153
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Add a safety check in function `intel_update_microcode` to return when
accidentally `NULL` is passed as `microcode_updates`, which would lead
to a null pointer dereference later on.
for (c = microcode_updates; m->hdrver; m = (const struct microcode *)c) {
While at it, use `return NULL` for clarity in function
`intel_microcode_find` and include the header file `stddef.h`. for it.
The review of this patch had some more discussion on adding more
comments and more detailed error messages. But this should be done in
a separate patch.
For clarity here some history, on how this was found and what caused
the discussion and confusion.
Originally when Vladimir made this improvement, selecting
`CPU_MICROCODE_IN_CBFS` in Kconfig but not having the microcode blob
`cpu_microcode_blob.bin` in CBFS resulted in a null pointer dereference
later on causing a crash.
for (c = microcode_updates; m->hdrver; m = (const struct microcode *)c) {
Vladimir fixed this by returning if `microcode_updates` is `NULL`,
that means no file is found and successfully tested this on his
Lenovo X201.
When pushing the patch to Gerrit for review, the code was rewritten
though by Aaron in commit »intel microcode: split up microcode loading
stages« (98ffb426) [1], which also returns when no file is found. So
the other parts of the code were checked and the safety check as
described above is added.
[1] http://review.coreboot.org/2778
Change-Id: I6e18fd37256910bf047061e4633a66cf29ad7b69
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/2990
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
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If ROM caching is selected the haswell CPU initialization code
will enable ROM caching after all other CPU threads are brought
up.
Change-Id: I75424bb75174bfeca001468c3272e6375e925122
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3016
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The MP code on haswell was mirroring the BSPs MTRRs. In addition it
was cleaning up the ROM cache so that the MTRR register values were
the same once the OS was booted. Since the hyperthread sibling of
the BSP was going through this path the ROM cache was getting torn
down once the hyperthread was brought up.
That said, there was no differnce in observed boot time keeping the
ROM cache enabled.
Change-Id: I2a59988fcfeea9291202c961636ea761c2538837
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3008
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The haswell code was using the old assumption of which MTRR
was used for the ROM cache. Now that there is an API for doing
this use it as the old assumption is no longer valid.
Change-Id: I59ef897becfc9834d36d28840da6dc4f1145b0c7
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3007
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Previously southbridge_smm_init() was provided that did both
the clearing of the SMM state and enabling SMIs. This is
troublesome in how haswell machines bring up the APs. The BSP
enters SMM once to determine if parallel SMM relocation is possible.
If it is possible the BSP releases the APs to do SMM relocation.
Normally, after the APs complete the SMM relocation, the BSP would then
re-enter the relocation handler to relocate its own SMM space.
However, because SMIs were previously enabled it is possible for an SMI
event to occur before the APs are complete or have entered the
relocation handler. This is bad because the BSP will turn off parallel
SMM save state. Additionally, this is a problem because the relocation
handler is not written to handle regular SMIs which can cause an
SMI storm which effectively looks like a hung machine. Correct these
issues by turning on SMIs after all the SMM relocation has occurred.
Change-Id: Id4f07553b110b9664d51d2e670a14e6617591500
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2977
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Change-Id: I53982d88f94255abdbb38ca18f9d891d4bc161b0
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/2858
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Take the vboot path in romstage. This will complete the haswell
support for vboot firmware selection.
Built and booted. Noted firmware select worked on an image with
RW firmware support. Also checked that recovery mode worked as
well by choosing the RO path.
Change-Id: Ie2b0a34e6c5c45e6f0d25f77a5fdbaef0324cb09
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2856
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Convert the existing haswell code to support reloctable ramstage
to use dynamic cbmem. This patch always selects DYNAMIC_CBMEM as
this option is a hard requirement for relocatable ramstage.
Aside from converting a few new API calls, a cbmem_top()
implementation is added which is defined to be at the begining of the
TSEG region. Also, use the dynamic cbmem library for allocating a
stack in ram for romstage after CAR is torn down.
Utilizing dynamic cbmem does mean that the cmem field in the gnvs
chromeos acpi table is now 0. Also, the memconsole driver in the kernel
won't be able to find the memconsole because the cbmem structure
changed.
Change-Id: I7cf98d15b97ad82abacfb36ec37b004ce4605c38
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2850
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Here's the great news: From now on you don't have to worry about
hitting the right io.h include anymore. Just forget about romcc_io.h
and use io.h instead. This cleanup has a number of advantages, like
you don't have to guard device/ includes for SMM and pre RAM
anymore. This allows to get rid of a number of ifdefs and will
generally make the code more readable and understandable.
Potentially in the future some of the code in the io.h __PRE_RAM__
path should move to device.h or other device/ includes instead,
but that's another incremental change.
Change-Id: I356f06110e2e355e9a5b4b08c132591f36fec7d9
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2872
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Using the CPU microcode update script and
Intel's Linux* Processor Microcode Data File
from 2013-02-22
Change-Id: I9bb60bdc46f69db85487ba923e62315f6e5352f9
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2845
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Using the CPU microcode update script and
Intel's Linux* Processor Microcode Data File
from 2013-02-22
Change-Id: Icaf0e39978daa9308cc2f0c4856d99fb6b7fdffa
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2844
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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for latest URL of their microcode tar ball
Change-Id: I3da2bdac4b2ca7d3f48b20ed389f6a47275d24fe
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2842
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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These base addresses are used in several places and it
is helpful to have one location that is reading it.
Change-Id: Ibf589247f37771f06c18e3e58f92aaf3f0d11271
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/2812
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The RESET_ON_INVALID_RAMSTAGE_CACHE option indicates what to do
when the ramstage cache is found to be invalid on a S3 wake. If
selected the system will perform a system reset on S3 wake when the
ramstage cache is invalid. Otherwise it will signal to load the
ramstage from cbfs.
Change-Id: I8f21fcfc7f95fb3377ed2932868aa49a68904803
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2807
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Cache the relocated ramstage into the SMM region. There is
a reserved region within the final SMM region (TSEG). Use that
space to cache the relocated ramstage program. That way, on S3 resume
there is a copy that can be loaded quickly instead of accessing the
flash. Caching the ramstage in the SMM space is also helpful in that
it prevents the OS from tampering with the ramstage program.
Change-Id: Ifa695ad1c350d5b504b14cc29d3e83c79b317a62
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2806
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The SMM region is available for multipurpose use before the SMM
handler is relocated. Provide a configurable sized region in the
TSEG for use before the SMM handler is relocated. This feature is
implemented by making the reserved size a Kconfig option. Also
make the IED region a Kconfig option as well. Lastly add some sanity
checking on the Kconfig options.
Change-Id: Idd7fccf925a8787146906ac766b7878845c75935
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2804
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The TSEG region is accessible until the SMM handler is relocated
to that region. Set the region as cacheable in romstage so that it
can be used for other purposes with fast access.
Change-Id: I92b83896e40bc26a54c2930e05c02492918e0874
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2803
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The haswell processors support the ability to save their SMM state
into MSR space instead of the memory. This feaure allows for parallel
SMM relocation handlers as well as setting the same SMBASE for each
CPU since the save state memory area is not used.
The catch is that in order determine if this feature is available the
CPU needs to be in SMM context. In order to implement parallel SMM
relocation the BSP enters the relocation handler twice. The first time
is to determine if that feature is available. If it is, then that
feature is enabled the BSP exits the relocation handler without
relocating SMBASE. It then releases the APs to run the SMM relocation
handler. After the APs have completed the relocation the BSP will
re-enter the SMM relocation handler to relocate its own SMBASE to the
final location. If the parallel SMM feature is not available the BSP
relocates its SMBASE as it did before.
This change also introduces the BSP waiting for the APs to relocate
their SMBASE before proceeding with the remainder of the boot process.
Ensured both the parallel path and the serial path still continue
to work on cold, warm, and S3 resume paths.
Change-Id: Iea24fd8f9561f1b194393cdb77c79adb48039ea2
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2801
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Now that there is a way to disseminate the presence of s3 wake more
formally use that instead of hard coded pointers in memory and stashing
magic values in device registers. The northbridge code picks up the
field's presence in the romstage_handoff structure and sets up the
acpi_slp_type variable accordingly.
Change-Id: Ida786728ce2950bd64610a99b7ad4f1ca6917a99
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2799
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Some of the functions called from assembly assume the standard
x86 32-bit ABI of passing all arguments on the stack. However,
that calling ABI can be changed by compiler flags. In order to
protect against the current implicit calling convention annotate
the functions called from assembly with the cdecl function
attribute. That tells the compiler to use the stack based parameter
calling convention.
Change-Id: I83625e1f92c6821a664b191b6ce1250977cf037a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2794
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Now that CONFIG_RELOCTABLE_RAMSTAGE is available support it on
Haswell-based systems. This patch is comprised of the following changes:
1. Ensure that memory is not preserved when a relocatable ramstage is
enabled. There is no need.
2. Pick the proper stack to use after cache-as-ram is torn down. When
the ramstage is relocatable, finding a stack to use before vectoring
into ramstage is impossible since the ramstage is a black box with an
unknown layout.
Change-Id: I2a07a497f52375569bae9c994432a8e7e7a40224
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2793
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
|
The current ramstage code contains uses of symbols that cause issues
when the ramstage is relocatable. There are 2 scenarios resolved by this
patch:
1. Absolute symbols that are actually sizes/limits. The symbols are
problematic when relocating a program because there is no way to
distinguish a symbol that shouldn't be relocated and one that can.
The only way to handle these symbols is to write a program to post
process the relocations and keep a whitelist of ones that shouldn't
be relocated. I don't believe that is a route that should be taken
so fix the users of these sizes/limits encoded as absolute symbols
to calculate the size at runtime or dereference a variable in memory
containing the size/limit.
2. Absoulte symbols that were relocated to a fixed address. These
absolute symbols are generated by assembly files to be placed at a
fixed location. Again, these symbols are problematic because one
can't distinguish a symbol that can't be relocated. The symbols
are again resolved at runtime to allow for proper relocation.
For the symbols defining a size either use 2 symbols and calculate the
difference or provide a variable in memory containing the size.
Change-Id: I1ef2bfe6fd531308218bcaac5dcccabf8edf932c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2789
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
|
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Using the CPU microcode update script and
Intel's Linux* Processor Microcode Data File
from 2013-02-22
Change-Id: I853e381240b539b204c653404ca3d46369109219
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2846
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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Using the CPU microcode update script and
Intel's Linux* Processor Microcode Data File
from 2013-02-22
Change-Id: I4585288905cf7374e671894ab37f125220ae535e
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2843
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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There should be a fixed 10ms wait after sending an INIT IPI. The
previous implementation was just waiting up to 10ms for the IPI to
complete the send. That is not correct. The 10ms is unconditional
according to the documentation. No ill effects were observed with the
previous behavior, but it's important to follow the documentation.
Change-Id: Ib31d49ac74808f6eb512310e9f54a8f4abc3bfd7
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2780
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
|
This patch parallelizes the AP startup for Haswell-based devices. It
does not touch the generic secondary startup code. Instead it provides
its own MP support matching up with the Haswell BWG. It seemed to be too
much trouble to support the old startup way and this new way. Because of
that parallel loading is the only thing supported.
A couple of things to note:
1. Micrcode needs to be loaded twice. Once before MTRR and caching is
enabled. And a second time after SMM relocation.
2. The sipi_vector is entirely self-contained. Once it is loaded and
written back to RAM the APs do not access memory outside of the
sipi_vector load location until a sync up in ramstage.
3. SMM relocation is kicked off by an IPI to self w/ SMI set as the
destination mode.
The following are timings from cbmem with dev mode disabled and recovery mode
enabled to boot directly into the kernel. This was done on the
baskingridge CRB with a 4-core 8-thread CPU and 2 DIMMs 1GiB each. The
kernel has console enabled on the serial port. Entry 70 is the device
initialization, and that is where the APs are brought up. With these two
examples it looks to shave off ~200 ms of boot time.
Before:
1:55,382
2:57,606 (2,223)
3:3,108,983 (3,051,377)
4:3,110,084 (1,101)
8:3,113,109 (3,024)
9:3,156,694 (43,585)
10:3,156,815 (120)
30:3,157,110 (295)
40:3,158,180 (1,069)
50:3,160,157 (1,977)
60:3,160,366 (208)
70:4,221,044 (1,060,677)
75:4,221,062 (18)
80:4,227,185 (6,122)
90:4,227,669 (484)
99:4,265,596 (37,927)
1000:4,267,822 (2,225)
1001:4,268,507 (685)
1002:4,268,780 (272)
1003:4,398,676 (129,896)
1004:4,398,979 (303)
1100:7,477,601 (3,078,621)
1101:7,480,210 (2,608)
After:
1:49,518
2:51,778 (2,259)
3:3,081,186 (3,029,407)
4:3,082,252 (1,066)
8:3,085,137 (2,884)
9:3,130,339 (45,202)
10:3,130,518 (178)
30:3,130,544 (26)
40:3,131,125 (580)
50:3,133,023 (1,897)
60:3,133,278 (255)
70:4,009,259 (875,980)
75:4,009,273 (13)
80:4,015,947 (6,674)
90:4,016,430 (482)
99:4,056,265 (39,835)
1000:4,058,492 (2,226)
1001:4,059,176 (684)
1002:4,059,450 (273)
1003:4,189,333 (129,883)
1004:4,189,770 (436)
1100:7,262,358 (3,072,588)
1101:7,263,926 (1,567)
Booted the baskingridge board as noted above. Also analyzed serial
messages with pcserial enabled.
Change-Id: Ifedc7f787953647c228b11afdb725686e38c4098
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2779
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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This patch only applies to CONFIG_MICROCODE_IN_CBFS. The intel microcode
update routine would always walk the CBFS for the microcode file. Then
it would loop through the whole file looking for a match then load the
microcode. This process was maintained for intel_update_microcode_from_cbfs(),
however 2 new functions were exported:
1. const void *intel_microcode_find(void)
2. void intel_microcode_load_unlocked(const void *microcode_patch)
The first locates a matching microcode while the second loads that
mircocode. These new functions can then be used to cache the found
microcode blob w/o having to re-walk the CBFS.
Booted baskingridge board to Linux and noted that all microcode
revisions match on all the CPUs.
Change-Id: Ifde3f3e5c100911c4f984dd56d36664a8acdf7d5
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2778
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
|
There are changes coming to perform more complex tasks after cache-as-ram
has been torn down but before ramstage is loaded. Therefore, add the
romstage_after_car() function to call after cache-as-ram is torn down.
Its responsibility is for loading the ramstage and any other complex
tasks. For example, the saving of OS-controlled memory in the resume
path has now been moved into C instead of assembly.
Change-Id: Ie0c229cf83a9271c8995b31c534c8e5a696b164e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2757
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
|
The save_mrc_data() was previously called conditionally
in the raminit code. The save_mrc_data() function was called
in the non-S3 wake paths. However, the common romstage_common()
code was checking cbmem initialization things on s3 wake. Between
the two callers cbmem_initialize() was being called twice in the
non-s3 wake paths. Moreover, saving of the mrc data was not allowed
when CONFIG_EARLY_CBMEM_INIT wasn't enabled.
Therefore, move the save_mrc_data() to romstage_common. It already has
the knowledge of the wake path. Also remove the CONFIG_EARLY_CBMEM_INIT
requirement from save_mrc_data() as well as the call to cbmem_initialize().
Change-Id: I7f0e4d752c92d9d5eedb8fa56133ec190caf77da
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2756
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
|
Instead of hard coding the policy for the stack and MTRR values after
the cache-as-ram is torn down, allow for the C code to pass those
policies back to the cache-as-ram assembly file. That way, ramstage
relocation can use a different stack as well as different MTRR policies.
Change-Id: Ied024d933f96a12ed0703c51c506586f4b50bd14
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2755
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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This commit pulls in all the common logic for romstage into
the Haswell cpu directory. The bits specific to the mainboard
still reside under their respective directories. The calling
sequence bounces from the cpu directory to mainboard then back
to the cpu directory. The reasoning is that Haswell systems use
cache-as-ram for backing memory in romstage. The stack is used to
allocate structures. However, now changes can be made to the
romstage for Haswell and apply to all boards.
Change-Id: I2bf08013c46a99235ffe4bde88a935c3378eb341
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2754
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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It was found that the Haswell reference code was smashing through the
stack into the reference code's heap implementation. The reason for this
is because our current CAR allocation is too small. Moreover there are
quite a few things to coordinate between 2 code bases to get correct.
This commit separates the CAR into 2 parts:
1. MRC CAR usage.
2. Coreboot CAR usage.
Pointers from one region can be passed between the 2 modules, but one
should not be able to affect the others as checking has been put into
place in both modules.
The CAR size has effectively been doubled from 0x20000 (128 KiB) to
0x40000 (256KiB). Not all of that increase was needed, but enforcing
a power of 2 size only utilizes 1 MTRR.
Old CAR layout with a single contiguous stack with the region starting
at CONFIG_DCACHE_RAM_BASE:
+---------------------------------------+ Offset CONFIG_DCACHE_RAM_SIZE
| MRC global variables |
| CONFIG_DCACHE_RAM_MRC_VAR_SIZE bytes |
+---------------------------------------+
| ROM stage stack |
| |
| |
+---------------------------------------+
| MRC Heap 30000 bytes |
+---------------------------------------+
| ROM stage console |
| CONFIG_CONSOLE_CAR_BUFFER_SIZE bytes |
+---------------------------------------+
| ROM stage CAR_GLOBAL variables |
+---------------------------------------+ Offset 0
There was some hard coded offsets in the reference code wrapper to start
the heap past the console buffer. Even with this commit the console
can smash into the following region depending on what size
CONFIG_CONSOLE_CAR_BUFFER_SIZE is.
As noted above This change splits the CAR region into 2 parts starting
at CONFIG_DCACHE_RAM_BASE:
+---------------------------------------+
| MRC Region |
| CONFIG_DCACHE_RAM_MRC_VAR_SIZE bytes |
+---------------------------------------+ Offset CONFIG_DCACHE_RAM_SIZE
| ROM stage stack |
| |
| |
+---------------------------------------+
| ROM stage console |
| CONFIG_CONSOLE_CAR_BUFFER_SIZE bytes |
+---------------------------------------+
| ROM stage CAR_GLOBAL variables |
+---------------------------------------+ Offset 0
Another variable was add, CONFIG_DCACHE_RAM_ROMSTAGE_STACK_SIZE,
which represents the expected stack usage for the romstage. A marker
is checked at the base of the stack to determine if either the stack
was smashed or the console encroached on the stack.
Change-Id: Id76f2fe4a5cf1c776c8f0019f406593f68e443a7
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2752
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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The SMM handler resides in the TSEG region which is far above
CONFIG_RAM_TOP (which is the highest cacheable address) before
MTRRs are setup. This means that calling initialize_cpus() before
performing MTRR setup on the BSP means the SMM handler is copied
using uncacheable accesses.
Improve the SMM handler setup path by enabling performing MTRR setup on
for the BSP before the call to initialize_cpus(). In order to do this
the haswell_init() function was split into 2 paths: BSP & AP paths.
There is a cpu_common_init() that both call to perform similar
functionality. The BSP path in haswell_init() then starts the APs using
intel_cores_init(). The AP path in haswell_init() loads microcode and
sets up MTRRs.
This split will be leveraged for future support of bringing up APs in
parallel as well as adhering to the Haswell MP initialization
requirements.
Change-Id: Id8e17af149e68d708f3d4765e38b1c61f7ebb470
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2746
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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The configure_mca() function was hard coding the number of
banks the cpu supported. Query this dynamically so that it
no longer clears only 7 banks.
Change-Id: I33fce8fadc0facd1016b3295faaf3ae90e490a71
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2745
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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This just moves the definiton of CORE_THREAD_COUNT_MSR so
that future code can utilize it.
Change-Id: I15a381090f21ff758288f55dc964b6694feb6064
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2744
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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This commit adds support for using the SMM modules for haswell-based
boards. The SMI handling was also refactored to put the relocation
handler and permanent SMM handler loading in the cpu directory. All
tseg adjustment support is dropped by relying on the SMM module support
to perform the necessary relocations.
Change-Id: I8dd23610772fc4408567d9f4adf339596eac7b1f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2728
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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Haswell CPUs require a FIT table in the firmware. This commit
adds rudimentary support for a FIT table. The number of entries
in the table is based on a configuration option. The code only
generates a type 0 entry. A follow-on tool will need to be developed
to populate the FIT entries as well as checksumming the table.
Verified image has a FIT pointer and table when option is selected.
Change-Id: I3a314016a09a1cc26bf1fb5d17aa50853d2ef4f8
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2642
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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This adds microcode ffff000a and the CPUIDs for ULT.
Change-Id: I341c1148a355d8373b31032b9f209232bd03230a
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/2647
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
|
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The IA32_ENERGY_PERFORMANCE_BIAS MSR can only be read or written
to if the CPU supports it. The support is indicated by ECX[3] for
cpuid(6). Without this guard, some Haswell parts would GP# fault
in this routine.
No more GP# while running on haswell CRBs.
Change-Id: If41e1e133e5faebb3ed578cba60743ce7e1c196f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2639
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
|
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The Haswell parts use a PCH code named Lynx Point (Series 8). Therefore,
the southbridge support is included as well. The basis for this code is
the Sandybridge code. Management Engine, IRQ routing, and ACPI still requires
more attention, but this is a good starting point.
This code partially gets up through the romstage just before training
memory on a Haswell reference board.
Change-Id: If572d6c21ca051b486b82a924ca0ffe05c4d0ad4
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2616
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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Models 6ex and 6fx select UDELAY_LAPIC so cannot select
contradicting UDELAY_TSC here.
Model 1067x requires speedstep.
Change-Id: I69d3ec8085912dfbe5fe31c81fa0a437228fa48f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/2525
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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In the file `COPYING` in the coreboot repository and upstream [1]
just one space is used.
The following command was used to convert all files.
$ git grep -l 'MA 02' | xargs sed -i 's/MA 02/MA 02/'
[1] http://www.gnu.org/licenses/gpl-2.0.txt
Change-Id: Ic956dab2820a9e2ccb7841cab66966ba168f305f
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/2490
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
|
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The name lapic_cluster is a bit misleading, since the construct is not local
APIC specific by concept. As implementations and hardware change, be more
generic about our naming. This will allow us to support non-x86 systems without
adding new keywords.
Change-Id: Icd7f5fcf6f54d242eabb5e14ee151eec8d6cceb1
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2377
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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And move the corresponding #define to speedstep.h
Change-Id: I8c884b8ab9ba54e01cfed7647a59deafeac94f2d
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/2339
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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In particular:
MSR_PMG_CST_CONFIG_CONTROL
MSR_PMG_IO_BASE_ADDR
MSR_PMG_IO_CAPTURE_ADDR
Change-Id: Ief2697312f0edf8c45f7d3550a7bedaff1b69dc6
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/2337
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
|
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Add a comment explaining that the existing lock bit logic is correct
and "as designed" even though the manual states otherwise. This way
people don't have to "just know" what is going on.
Change-Id: I14e6763abfe339e034037b73db01d4ee634bb34d
Signed-off-by: Mike Frysinger <vapier@chromium.org>
Reviewed-on: http://review.coreboot.org/2326
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>
|
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Summary:
Isolate CBFS underlying I/O to board/arch-specific implementations as
"media stream", to allow loading and booting romstage on non-x86.
CBFS functions now all take a new "media source" parameter; use
CBFS_DEFAULT_MEDIA if you simply want to load from main firmware.
API Changes:
cbfs_find => cbfs_get_file.
cbfs_find_file => cbfs_get_file_content.
cbfs_get_file => cbfs_get_file_content with correct type.
CBFS used to work only on memory-mapped ROM (all x86). For platforms like ARM,
the ROM may come from USB, UART, or SPI -- any serial devices and not available
for memory mapping.
To support these devices (and allowing CBFS to read from multiple source
at the same time), CBFS operations are now virtual-ized into "cbfs_media". To
simplify porting existing code, every media source must support both "reading
into pre-allocated memory (read)" and "read and return an allocated buffer
(map)". For devices without native memory-mapped ROM, "cbfs_simple_buffer*"
provides simple memory mapping simulation.
Every CBFS function now takes a cbfs_media* as parameter. CBFS_DEFAULT_MEDIA
is defined for CBFS functions to automatically initialize a per-board default
media (CBFS will internally calls init_default_cbfs_media). Also revised CBFS
function names relying on memory mapped backend (ex, "cbfs_find" => actually
loads files). Now we only have two getters:
struct cbfs_file *entry = cbfs_get_file(media, name);
void *data = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, name, type);
Test results:
- Verified to work on x86/qemu.
- Compiles on ARM, and follow up commit will provide working SPI driver.
Change-Id: Iac911ded25a6f2feffbf3101a81364625bb07746
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2182
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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The use of ramstage.a required the build system to handle some
object files in a special way, which were put in the drivers
class.
These object files didn't provide any symbols that were used
directly (but only via linker magic), and so the linker never
considered them for inclusion.
With ramstage.a gone, we can drop this special class, too.
Change-Id: I6f1369e08d7d12266b506a5597c3a139c5c41a55
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1872
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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Updating microcode on several threads in a core at once
can be harmful. Hence add a spinlock to make sure that
does not happen.
Change-Id: I0c9526b6194202ae7ab5c66361fe04ce137372cc
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1778
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
|
There are some function dependancies that didn't work
when MAX_CPU was set to 1 and the build would fail.
Change-Id: I033a42056f7b48a40316e03772ed89ad9cb013fe
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/1819
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
|
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Adding an entry for 0x306a0 will make sure that all
CPUs with CPUIDs 0x306aX will execute the driver (analog to
Sandybridge behavior)
Change-Id: I0353f3a48ecfd41274fdf6ee302c7d34482f1b5b
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1783
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
|
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The VMX MSR may come up with random values and needs to be
initialized to zero. This was done incorrectly in finalize_smm.
It must be done on a per core basis in the general CPU init.
This touches all Sandybridge and Ivybridge configs.
Change-Id: I015352d0f8e2ebe55ac0a5e9c5bbff83bd2ff86b
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/1794
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
|
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The MSR for VMX can start with a random value and needs to be
cleared by coreboot. I am reverting this change, as
it handles almost everything and doing a follow-on change to fix
the improper clearing of the MSR.
Change-Id: Ibad7a27b03f199241c52c1ebdd2b6d4e81a18a4e
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/1793
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The reporting of cores and threads in the system was a bit
ambiguous. This patch makes it clearer.
Change-Id: Ia05838a53f696fbaf78a1762fc6f4bf348d4ff0e
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1786
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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To allow easy experimentation with thermals, leave power control
registers unlocked.
Change-Id: Ia53065f3f220c2faed58e7d53e60c3f169ae58ec
Signed-off-by: Sameer Nanda <snanda@chromium.org>
Reviewed-on: http://review.coreboot.org/1688
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
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Change-Id: I853454e8f5617fb7af5dddd7288bdeeacc7b1b8e
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1663
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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All of these capabilities exist on all CPUs supported on
this socket.
Change-Id: I54f34e48e34bb6ab5b9954ab7ece8c2c3a1a8e67
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1664
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This adds proper support for turbo and super-low-frequency modes.
Calculation of the p-states has been rewritten and moved into an
extra file speedstep.c so it can be used for non-acpi stuff like
EMTTM table generation.
It has been tested with a Core2Duo T9400 (Penryn) and a Core Duo T2300
(Yonah) processor.
Change-Id: I5f7104fc921ba67d85794254f11d486b6688ecec
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1658
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: I3efef6bc8f519382ffdd92eb10b4bcd1a4361ba9
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1657
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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We parsed the MSR the wrong way, and didn't support some valid values.
Change-Id: Ia42e3de05dd76b6830aaa310ec82031d36def3a0
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1656
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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We had only some MSR definitions in there, which are used in speedstep
related code. I think speedstep.h is the better and less confusing place
for these.
Change-Id: I1eddea72c1e2d3b2f651468b08b3c6f88b713149
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1655
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Change-Id: Ia7ef3a4cbc3638a9c9a48b297e392e4e655b6e6b
Signed-off-by: Stefan Tauner <stefan.tauner@gmx.at>
Reviewed-on: http://review.coreboot.org/1581
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Change-Id: I7a49d5fc13fb605a47c3c1662758ebd5935e7780
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/1564
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Also deletes files not included in build:
src/southbridge/amd/cimx/sb700/chip_name.c
src/southbridge/amd/cimx/sb800/chip_name.c
src/southbridge/amd/cimx/sb900/chip_name.c
Change-Id: I2068e3859157b758ccea0ca91fa47d09a8639361
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1473
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Marc Jones <marcj303@gmail.com>
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This patch aims to improve the microcode in CBFS handling that was
brought by the last patches from Stefan and the Chromium team.
Choices in Kconfig
- 1) Generate microcode from tree (default)
- 2) Include external microcode file
- 3) Do not put microcode in CBFS
The idea is to give the user full control over including non-free
blobs in the final ROM image.
MICROCODE_INCLUDE_PATH Kconfig variable is eliminated. Microcode
is handled by a special class, cpu_microcode, as such:
cpu_microcode-y += microcode_file.c
MICROCODE_IN_CBFS should, in the future, be eliminated. Right now it is
needed by intel microcode updating. Once all intel cpus are converted to
cbfs updating, this variable can go away.
These files are then compiled and assembled into a binary CBFS file.
The advantage of doing it this way versus the current method is that
1) The rule is CPU-agnostic
2) Gives user more control over if and how to include microcode blobs
3) The rules for building the microcode binary are kept in
src/cpu/Makefile.inc, and thus would not clobber the other makefiles,
which are already overloaded and very difficult to navigate.
Change-Id: I38d0c9851691aa112e93031860e94895857ebb76
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/1245
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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There are hyper-threading Atom CPUs, those would not enable L2
cache with model_6ex CAR code. Switch to code that can handle
different number of threads and cores.
Change-Id: I57328c231f8998f45f7b0d26c63b24585f8476dd
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1384
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-by: James Laird <jhl@mafipulation.org>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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The name is derived directly from the device path.
Change-Id: If2053d14f0e38a5ee0159b47a66d45ff3dff649a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1471
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
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The CPU can arbitrarily reorder calls to rdtsc, significantly
reducing the precision of timing using the CPUs time stamp counter.
Unfortunately the method of synchronizing rdtsc is different
on AMD and Intel CPUs. There is a generic method, using the cpuid
instruction, but that uses up a lot of registers, and is very slow.
Hence, use the correct lfence/mfence instructions (for CPUs that
we know support it)
Change-Id: I17ecb48d283f38f23148c13159aceda704c64ea5
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1422
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
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Detection for a hyper-threading CPU was not compatible with multicore
CPUs. When using CPUID eax==4, also need to set ecx=0.
CAR init tested on real hardware with hyper-threading model_f25 and
under qemu 0.15.1 with multicore CPU.
Change-Id: I28ac8790f94652e4ba8ff88fe7812c812f967608
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1172
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
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This reverts commit 042c1461fb777e583e5de48edf9326e47ee5595f.
It turned out that sending IPIs via broadcast doesn't work on
Sandybridge. We tried to come up with a solution, but didn't
found any so far. So revert the code for now until we have
a working solution.
Change-Id: I7dd1cba5a4c1e4b0af366b20e8263b1f6f4b9714
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/1381
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This reverts commit 78efc4c36c68b51b3e73acdb721a12ec23ed0369.
The broadcast patch was reverted, so this commit should also
be reverted. The reason for reverting the broadcast patch:
It turned out that sending IPIs via broadcast doesn't work on
Sandybridge. We tried to come up with a solution, but didn't
found any so far. So revert the code for now until we have
a working solution.
Change-Id: I05c27dec55fa681f455215be56dcbc5f22808193
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/1380
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The default TCC activation offset is 0, which means TCC
activation starts at Tj_max. For devices with limited
cooling ability it may be desired to lower TCC activation.
This adds an option that can be declared in the devicetree
to set the TCC activation to a non-zero value.
Enable tcc_offset=15 in devicetree.cb and build/boot
the BIOS and check that the value is set in the MSR:
> and $(shr $(rdmsr 0 0x1a2) 24) 0xf
0xf
Change-Id: I88f6857b40fd354f70fa9d5d9c1d8ceaea6dfcd1
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1343
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Split this behavior out from PNOT() so the OS can
update _PPC limit without re-reading C-state tables.
Change-Id: I81b9111a4866f6b9916f74ac57a3caefaa77c565
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1342
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The existing NVS variable for PPCM will be used to
select a dynamic max P-state.
By itself this does not change existing behavior because
the NVS PPCM variable is initialized to zero.
PPCM can be tested by building and booting a modified BIOS
that sets gnvs->ppcm to a value greater than 1 and checking
from the OS that the P-state is limited to that value.
Change-Id: Ia7b3bbc6b84c1aa42349bb236abee5cc92486561
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1341
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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On SandyBridge systems configured to work with Panther Point the CPU
would wrongly be described as IvyBridge. Fix this issue and drop an
unneeded Kconfig variable at the same time.
Change-Id: I501a4fa00613e589cd315cfee61b2f9561dfcb4d
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1335
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Change-Id: Idee4facc18e0be60906d2a2f0e99bd39de8d7247
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1332
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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On both SandyBridge and IvyBridge BCLK is fixed at 100MHz. Have the
comment reflect that.
Change-Id: Ia81c3501dc3e68cf3143c3bc864dfbf88901f9f9
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1336
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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.. in case the system has pluggable CPUs or might come in different SKUs.
Change-Id: I7a7cd95b4de5dd78370355f448688e8d000434c1
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1333
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Date and time are mixed up:
microcode: updated to revision 0x12 date=2012-12-04
should be
microcode: updated to revision 0x12 date=2012-04-12
Change-Id: I85f9100f31d88bb831bef07131f361c92c7ef34e
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1334
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
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CPUs with configurable TDP will run the TSC at the max non-turbo
ratio for the maximum TDP value, which can cause issues if another
TDP is desired. To deal with this we set the flex ratio to the
nominal TDP ratio early in the boot and then configure the Soft
Reset Data registers so the PCH can tell the CPU what frequency
to run at after a reset.
This is done very early in the bootblock because it is necessary
to reset the system after setting a flex ratio.
The end result is that the TSC will now increment at the max
non-turbo frequency for the nominal TDP.
On some system with 1.8GHz CPU ensure that the kernel
detects the CPU speed as ~1800mhz rather than ~2300mhz:
> dmesg | grep "MHz processor"
[ 0.004000] Detected 1795.801 MHz processor.
Change-Id: I8436dced9199003b6423186a2b041e3f7b84ab8c
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: http://review.coreboot.org/1329
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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