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The field that was previously named 'efr' is actually the iommu feature
info field. The efr field is a 64-bit field that is only present in
type 11h or type 40h headers that follows the iommu feature info field.
Change-Id: I62c158a258d43bf1912fedd63cc31b80321a27c6
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16508
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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The revision field was correct, but the comment was wrong. The revision
1 means that the IVRS table only uses fixed length device entries.
Update the field to use the IVRS revision #define.
Change-Id: I4c030b31e3e3f0a402dac36ab69f43d99e131c22
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16507
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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I/O Virtualization Reporting Structure (IVRS) definitions from:
AMD I/O Virtualization Technology (IOMMU)
Specification 48882—Rev 2.62—February 2015
Change-Id: I4809856eb922cbd9de4a2707cee78dba603af528
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16506
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Avoid the inclusion of a function declaration if the argument type
device_t is not defined.
This was not a problem until now because the
old declaration of device_t and the new one overlapped.
Change-Id: I05a6ef1bf65bf47f3c6933073ae2d26992348813
Signed-off-by: Antonello Dettori <dev@dettori.io>
Reviewed-on: https://review.coreboot.org/16404
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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Change-Id: I8a44a58506d7cf5ebc9fe7ac4f2b46f9544ba61a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16287
Tested-by: build bot (Jenkins)
Reviewed-by: Omar Pakker
Reviewed-by: Martin Roth <martinroth@google.com>
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Change-Id: I37dfa853c3dbe93a52f6c37941b17717e22f6430
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16277
Reviewed-by: Omar Pakker
Tested-by: build bot (Jenkins)
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Generate an object to describe the coreboot table region in ACPI
with the HID "CORE0000" so it can be used by kernel drivers.
To keep track of the "CORE" HID usage add them to an enum and add
a function to generate the HID in AML: Name (_HID, "CORExxxx")
BUG=chromium:589817
BRANCH=none
TEST=build and boot on chell, dump SSDT to verify contents:
Device (CTBL)
{
Name (_HID, "CORE0000") // _HID: Hardware ID
Name (_UID, Zero) // _UID: Unique ID
Method (_STA, 0, NotSerialized) // _STA: Status
{
Return (0x0F)
}
Name (_CRS, ResourceTemplate () // _CRS: Current Resource Settings
{
Memory32Fixed (ReadOnly,
0x7AB84000, // Address Base
0x00008000, // Address Length
)
})
}
Change-Id: I2c681c1fee02d52b8df2e72f6f6f0b76fa9592fb
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16056
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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PCI root ports with "Address Translation Service" capability can be
reported in DMAR table in the ATSR scope to let the OS know how to
handle these devices the right way when VT-d is used.
Add code to create an entry for a PCI root port using the type
"SCOPE_PCI_SUB".
Change-Id: Ie2c46db7292d9f1637ffe2e9cfaf6619372ddf13
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/15912
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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DMAR tables can contain so called "Address Translation Service Reporting"
(ATSR) structure. It is applicable for platforms that support
Device-TLBs and describe PCI root ports that have this ability.
Add code to create this ATSR structure.
In addition, a function to fix up the size of the ATSR
structure is added as this is a new type and using the function
acpi_dmar_drhd_fixup() can lead to confusion.
Change-Id: Idc3f6025f597048151f0fd5ea6be04843041e1ab
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/15911
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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These non-ascii & unprintable characters aren't needed.
Change-Id: I129f729f66d6a692de729d76971f7deb7a19c254
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/15977
Tested-by: build bot (Jenkins)
Reviewed-by: Omar Pakker
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Add a Kconfig value to enable the console during postcar. Add a call
to console_init at the beginning of the postcar stage in exit_car.S.
TEST=Build and run on Galileo Gen2
Change-Id: I66e2ec83344129ede2c7d6e5627c8062e28f50ad
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/16001
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Display the MTRRs after they have been updated during the postcar stage.
TEST=Build and run on Galileo Gen2
Change-Id: I1532250cacd363c1eeaf72edc6cb9e9268a11375
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15991
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Change-Id: Ia6ac94a93b48037a392a9aec2cd19cd80369173f
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15953
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
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Quark does not support the rdmsr and wrmsr instructions. Use SOC
specific routines to configure the MTRRs on Quark based platforms.
Add cpu_common.c as a build dependency to provide access to the routine
cpu_phys_address_size.
TEST=Build and run on Galileo Gen2
Change-Id: I43b7067c66c5c55b42097937e862078adf17fb19
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15846
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Place a map file for the postcar stage and place it into
build/cbfs/fallback.
TEST=Build and run on Galileo Gen2
Change-Id: I349c06e3c610db5b3f2511083208db27110c34d0
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15845
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Move the ramstage files to the beginning of the section. Eliminate
duplicate conditionals.
TEST=Build and run on Galileo Gen2
Change-Id: I461a5b78a76bd0d2643b85973fd0a70bc5e89581
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15892
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Move the romstage files into the romstage section of the file.
Eliminate duplicate conditional statements.
TEST=None
Change-Id: Ie2d65cef3797a2c091c0cd76b147b30a765332ad
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15891
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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Move the postcar commands to in between romstage and ramstage. Add the
stage header.
TEST=Build and run on Galileo Gen2
Change-Id: I530da6afd8ccbcea217995ddd27066df6d45de22
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15844
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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The API called to write the name of the child table in the
dp entry (type ACPI_DP_TYPE_CHILD) was not including the
quotes, e.g., it was DAAD and not "DAAD". Thus, the kernel driver
did not get the right information from SSDT.
Change the API to acpigen_write_string() to fix the issue.
Signed-off-by: Harsha Priya <harshapriya.n@intel.com>
Change-Id: Id33ad29e637bf1fe6b02e8a4b0fd9e220e8984e7
Reviewed-on: https://review.coreboot.org/15724
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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In the ACPI specification the PM1 register locations are well
defined, but the sleep type values are hardware specific. That
said, the Intel chipsets have been consistent with the values
they use. Therefore, provide those hardware definitions as well
a helper function for translating the hardware values to the
more high level ACPI sleep values.
BUG=chrome-os-partner:54977
Change-Id: Iaeda082e362de5d440256d05e6885b3388ffbe43
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15666
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
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Instead of open coding the literal values provide more
semantic symbol to be used. This will allow for aligning
chipset code with this as well to reduce duplication.
BUG=chrome-os-partner:54977
Change-Id: I022bf1eb258f7244f2e5aa2fb72b7b82e1900a5c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15663
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
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There is a second ACPI _DSD document from the UEFI Forum that details
how _DSD style tables can be nested, creating a tree of similarly
formatted tables. This document is linked from acpi_device.h.
In order to support this the device property interface needs to be
more flexible and build up a tree of properties to write all entries
at once instead of writing each entry as it is generated.
In the end this is a more flexible solution that can support drivers
that need child tables like the DA7219 codec, while only requiring
minor changes to the existing drivers that use the device property
interface.
This was tested on reef (apollolake) and chell (skylake) boards to
ensure that there was no change in the generated SSDT AML.
Change-Id: Ia22e3a5fd3982ffa7c324bee1a8d190d49f853dd
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/15537
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Have acpigen_write_package() return a pointer to the package element
counter so it can be used for dynamic package generation where needed.
Change-Id: Id7f6dd03511069211ba3ee3eb29a6ca1742de847
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/15536
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Have the different acpi_device_ path functions use a different static
buffer so they can be called interchangeably.
Change-Id: I270a80f66880861d5847bd586a16a73f8f1e2511
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/15521
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Add a function for an SOC to define that will allow it to map the
SOC-specific gpio_t value into an appropriate ACPI pin. The exact
behavior depends on the GPIO implementation in the SOC, but it can
be used to provide a pin number that is relative to the community or
bank that a GPIO resides in.
Change-Id: Icb97ccf7d6a9034877614d49166bc9e4fe659bcf
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/15512
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Implement writeat and eraseat support into the region_device_ops struct.
Change-Id: Iac2cf32e523d2f19ee9e5feefe1fba8c68982f3d
Signed-off-by: Antonello Dettori <dev@dettori.io>
Reviewed-on: https://review.coreboot.org/15318
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Correct standard manufacturer's identification code.
Change-Id: I273711e121a61a91176c15cd4cab75420f1f5a39
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15271
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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There is nothing to backup with RELOCATABLE_RAMSTAGE.
Change-Id: I780a71e48d23e202fb0e9c70e34420066fa0e5b5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15243
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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No boards affected, resume is always allowed when enabled
in the build.
Change-Id: I1816557da8201af9e137c389b57852ec20390b6a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15275
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Some of the support functions will be built for romstage
once HIGH_MEMORY_SAVE is removed.
Change-Id: I43ed9067cf6b2152a354088c1dcb02d374eb6efe
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15242
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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No need to make low memory backup unless we are on
S3 resume path.
Hide those details from ACPI.
Change-Id: Ic08b6d70c7895b094afdb3c77e020ff37ad632a1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15241
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Without RELOCATABLE_RAMSTAGE have WB cache large enough
to cover the greatest ramstage needs, as there is no benefit
of trying to accurately match the actual need. Choose
this to be bottom 16MiB.
With RELOCATABLE_RAMSTAGE write-back cache of low ram is
only useful for bottom 1MiB of RAM as a small part of this gets used
during SMP initialisation before proper MTRR setup.
Change-Id: Icd5f8461f81ed0e671130f1142641a48d1304f30
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15249
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Variable name shadows parameter name used on other functions,
and it can be local anyway after function removal.
Change-Id: I3164b15b33d877fef139f48ab2091e60e3124c3b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15240
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Add Ramaxel DRAM manufacturer id.
Tested on Lenovo T520 and DDR3-1600 DIMM (RMT3170eb86e9w16).
The manufacturer name shows up in dmidecode.
Change-Id: I14cdc82c09f0f990e2ba18083748d11d79e53874
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/15183
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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This is more of ACPI S3 resume and x86 definition than CBMEM.
Change-Id: Iffbfb2e30ab5ea0b736e5626f51c86c7452f3129
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15190
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This Kconfig is deprecated, new platforms need to locate
ramstage stack in CBMEM instead.
Change-Id: I20ece297302321337cc2ce17fdef0c55242a4fc3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15189
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Not all x86 architectures support the mm register set. The default
routine that saves BIST in mm0 and a "weak" routine that saves the TSC
value in mm2:mm1. Select the Kconfig value
BOOTBLOCK_SAVE_BIST_AND_TIMESTAMP to provide a replacement routine to
save the BIST and timestamp values.
TEST=Build and run on Amenia and Galileo Gen2.
Change-Id: I8119e74664ac3522c011767d424d441cd62545ce
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15126
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Use Kconfig values to enable debug spinloops in assembly_entry.S. This
makes it easy to debug the assembly code.
TEST=Build and run on Galileo Gen2
Change-Id: Ic56bf2260b8e3181403623961874c9289f3ca945
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15135
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Conditionally add a debug spinloop to enable easy connection of JTAG
debuggers.
TEST=Build and run on Galileo Gen2 with a JTAG debugger.
Change-Id: I7a21f9e6bfb10912d06ce48447c61202553630d0
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15127
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Support ROM_SIZE greater than 16 MiB. Work around SMBIOS rom size
limitation of 16 MiB by specifying 16 MiB as the ROM size.
TEST=Build and run on neoncity
Change-Id: I3f464599cd8a1b6482db8b9deab03126c8b92128
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15108
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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Don't write reserved bits in the Quark platform. Follow the previous
boot behavior and just enable SSE.
TEST=Build and run on Galileo Gen2
Change-Id: Ib3143eff02b2610b595bd666c10d70e43103ccda
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15128
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Leave it for the platform to fill in the string.
Change-Id: I7b4fe585f8d1efc8c9743f0d8b38de1f98124aab
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/14996
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
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The recent ACPI specification extensions have formally defined a
method for describing device information with a key=value format that
is modeled after the Devicetree/DTS format using a special crafted
object named _DSD with a specific UUID for this format.
There are three defined Device Property types: Integers, Strings, and
References. It is also possible to have arrays of these properties
under one key=value pair. Strings and References are both represented
as character arrays but result in different generated ACPI OpCodes.
Various helpers are provided for writing the Device Property header
(to fill in the object name and UUID) and footer (to fill in the
property count and device length values) as well as for writing the
different Device Property types. A specific helper is provided for
writing the defined GPIO binding Device Property that is used to allow
GPIOs to be referred to by name rather than resource index.
This is all documented in the _DSD Device Properties UUID document:
http://uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
This will be used by device drivers to provide device properties that
are consumed by the operating system. Devicetree bindings are often
described in the linux kernel at Documentation/devicetree/bindings/
A sample driver here has an input GPIO that it needs to describe to
the kernel driver:
chip.h:
struct drivers_generic_sample_config {
struct acpi_gpio mode_gpio;
};
sample.c:
static void acpi_fill_ssdt_generator(struct device *dev) {
struct drivers_generic_sample_config *config = dev->chip_info;
const char *path = acpi_device_path(dev);
...
acpi_device_write_gpio(&config->mode_gpio);
...
acpi_dp_write_header();
acpi_dp_write_gpio("mode-gpio", path, 0, 0, 0);
acpi_dp_write_footer();
...
}
devicetree.cb:
device pci 1f.0 on
chip drivers/generic/sample
register "mode_gpio" = "ACPI_GPIO_INPUT(GPP_B1)"
device generic 0 on end
end
end
SSDT.dsl:
Name (_CRS, ResourceTemplate () {
GpioIo (Exclusive, PullDefault, 0, 0, IoRestrictionInputOnly,
"\\_SB.PCI0.GPIO", 0, ResourceConsumer) { 25 }
})
Name (_DSD, Package () {
ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package () {
Package () {"mode-gpio", Package () { \_SB.PCI0.LPCB, 0, 0, 1 }}
}
})
Change-Id: I93ffd09e59d05c09e38693e221a87085469be3ad
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14937
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
Add required definitions to describe an ACPI SPI bus and a method to
write the SpiSerialBus() descriptor to the SSDT.
This will be used by device drivers to describe their SPI resources to
the OS. SPI devices are not currently enumerated in the devicetree but
can be enumerated by device drivers directly.
generic.c:
void acpi_fill_ssdt_generator(struct device *dev) {
struct acpi_spi spi = {
.device_select = dev->path->generic.device.id,
.device_select_polarity = SPI_POLARITY_LOW,
.spi_wire_mode = SPI_4_WIRE_MODE,
.speed = 1000 * 1000; /* 1 mHz */
.data_bit_length = 8,
.clock_phase = SPI_CLOCK_PHASE_FIRST,
.clock_polarity = SPI_POLARITY_LOW,
.resource = acpi_device_path(dev->bus->dev)
};
...
acpi_device_write_spi(&spi);
...
}
devicetree.cb:
device pci 1e.2 on
chip drivers/spi/generic
device generic 0 on end
end
end
SSDT.dsl:
SpiSerialBus (0, PolarityLow, FourWireMode, 8, ControllerInitiated,
1000000, ClockPolarityLow, ClockPhaseFirst,
"\\_SB.PCI0.SPI0", 0, ResourceConsumer)
Change-Id: I0ef83dc111ac6c19d68872ab64e1e5e3a7756cae
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14936
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
Add required definitions to describe an ACPI I2C bus and a method to
write the I2cSerialBus() descriptor to the SSDT.
This will be used by device drivers to describe their I2C resources to
the OS. The devicetree i2c device can supply the address and 7 or 10
bit mode as well as indicate the GPIO controller device, and the bus
speed can be fixed or configured by the driver.
chip.h:
struct drivers_i2c_generic_config {
enum i2c_speed bus_speed;
};
generic.c:
void acpi_fill_ssdt_generator(struct device *dev) {
struct drivers_i2c_generic_config *config = dev->chip_info;
struct acpi_i2c i2c = {
.address = dev->path->i2c.device,
.mode_10bit = dev->path.i2c.mode_10bit,
.speed = config->bus_speed ? : I2C_SPEED_FAST,
.resource = acpi_device_path(dev->bus->dev)
};
...
acpi_device_write_i2c(&i2c);
...
}
devicetree.cb:
device pci 15.0 on
chip drivers/i2c/generic
device i2c 10.0 on end
end
end
SSDT.dsl:
I2cSerialBus (0x10, ControllerInitiated, 400000, AddressingMode7Bit,
"\\_SB.PCI0.I2C0", 0, ResourceConsumer)
Change-Id: I598401ac81a92c72f19da0271af1e218580a6c49
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14935
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
Add definitions to describe GPIOs in generated ACPI objects and a
method to write a GpioIo() or GpioInt() descriptor to the SSDT.
ACPI GPIOs have many possible configuration options and a structure
is created to describe it accurately in ACPI terms. There are many
shared descriptor fields between GpioIo() and GpioInt() so the same
function can write both types.
GpioInt shares many properties with ACPI Interrupts and the same types
are re-used here where possible. One addition is that GpioInt can be
configured to trigger on both low and high edge transitions.
One descriptor can describe multiple GPIO pins (limited to 8 in this
implementation) that all share configuration and controller and are
used by the same device scope.
Accurately referring to the GPIO controller that this pin is connected
to requires the SoC/board to implement a function handler for
acpi_gpio_path(), or for the caller to provide this directly as a
string in the acpi_gpio->reference variable.
This will get used by device drivers to describe their resources in
the SSDT. Here is a sample for a Maxim 98357A I2S codec which has a
GPIO for power and channel selection called "sdmode".
chip.h:
struct drivers_generic_max98357a_config {
struct acpi_gpio sdmode_gpio;
};
max98357a.c:
void acpi_fill_ssdt_generator(struct device *dev) {
struct drivers_generic_max98357a_config *config = dev->chip_info;
...
acpi_device_write_gpio(&config->sdmode_gpio);
...
}
devicetree.cb:
device pci 1f.3 on
chip drivers/generic/max98357a
register "sdmode_gpio" = "ACPI_GPIO_OUTPUT(GPP_C5)"
device generic 0 on end
end
end
SSDT.dsl:
GpioIo (Exclusive, PullDefault, 0, 0, IoRestrictionOutputOnly,
"\\_SB.PCI0.GPIO", 0, ResourceConsumer, ,) { 53 }
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Change-Id: Ibf5bab9c4bf6f21252373fb013e78f872550b167
Reviewed-on: https://review.coreboot.org/14934
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
Add definitions for ACPI device extended interrupts and a method to
write an Interrupt() descriptor to the SSDT output stream.
Interrupts are often tied together with other resources and some
configuration items are shared (though not always compatibly) with
other constructs like GPIOs and GPEs.
These will get used by device drivers to write _CRS sections for
devices into the SSDT. One usage is to include a "struct acpi_irq"
inside a config struct for a device so it can be initialized based
on settings in devicetree.
Example usage:
chip.h:
struct drivers_i2c_generic_config {
struct acpi_irq irq;
};
generic.c:
void acpi_fill_ssdt_generator(struct device *dev) {
struct drivers_i2c_generic_config *config = dev->chip_info;
...
acpi_device_write_interrupt(&config->irq);
...
}
devicetree.cb:
device pci 15.0 on
chip drivers/i2c/generic
register "irq" = "IRQ_EDGE_LOW(GPP_E7_IRQ)"
device i2c 10 on end
end
end
SSDT.dsl:
Interrupt (ResourceConsumer, Edge, ActiveLow, Exclusive,,,) { 31 }
Change-Id: I3b64170cc2ebac178e7a17df479eda7670a42703
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14933
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
When CONFIG_C_ENVIRONMENT_BOOTBLOCK is employed there's no need for
a chipset specific verstage entry point because cache-as-ram has
already been initialized. Therefore, provide a default entry point
for verstage in that environment.
Change-Id: Idd8f45bd58d3e5b251d1e38cca7ae794b8b77a28
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14971
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
|
|
Add a function to "struct device_operations" to return the ACPI name
for the device, and helper functions to find this name (either from
the device or its parent) and to build a fully qualified ACPI path
from the root device.
This addition will allow device drivers to generate their ACPI AML in
the SSDT at boot, with customization supplied by devicetree.cb,
instead of needing custom DSDT ASL for every mainboard.
The root device acpi_name is defined as "\\_SB" and is used to start
the path when building a fully qualified name.
This requires SOC support to provide handlers for returning the ACPI
name for devices that it owns, and those names must match the objects
declared in the DSDT. The handler can be done either in each device
driver or with a global handler for the entire SOC.
Simplified example of how this can be used for an i2c device declared
in devicetree.cb with:
chip soc/intel/skylake # "\_SB" (from root device)
device domain 0 on # "PCI0"
device pci 19.2 on # "I2C4"
chip drivers/i2c/test0
device i2c 1a.0 on end # "TST0"
end
end
end
end
And basic SSDT generating code in the device driver:
acpigen_write_scope(acpi_device_scope(dev));
acpigen_write_device(acpi_device_name(dev));
acpigen_write_string("_HID", "TEST0000");
acpigen_write_byte("_UID", 0);
acpigen_pop_len(); /* device */
acpigen_pop_len(); /* scope */
Will produce this ACPI code:
Scope (\_SB.PCI0.I2C4) {
Device (TST0) {
Name (_HID, "TEST0000")
Name (_UID, 0)
}
}
Change-Id: Ie149595aeab96266fa5f006e7934339f0119ac54
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14840
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
acpigen_write_uuid() will generate a ToUUID() 128-bit buffer object for a
common universally unique identifier that is passed as a string. The
resulting buffer is the UUID in byte format with a specific order of the
bytes as described in the ACPI specification:
ToUUID (uuid)
Compiles to:
Buffer (16) { uuid[3], uuid[2], uuid[1], uuid[0], uuid[5], uuid[4],
uuid[7], uuid[6], uuid[8], uuid[9], uuid[10], uuid[11],
uuid[12], uuid[13], uuid[14], uuid[15] }
Change-Id: Ibbeff926883532dd78477aaa2d26ffffb6ef30c0
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14838
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
timestamp.c was not included in bootblock and postcar. This means that
these two stages would use the weak implementation in lib/timestamp.c
instead of the arch-specific implementation based on rdtsc.
This resulted in using timer_monotonic_get() which resets the
timestamps from 0. timer_monotonic_get() only provides per-stage
incrementing semantics on x86 because lapic implementation has
counting down values. A globally incrementing counter like rdtsc
provides the semantics like every other non-x86.
On the test configuration, the weak implementation of timestamp_get()
returned zero, resulting in wrong timestamps coming from the bootblock,
while romstage and ramstage used the arch implementation and returned
correct timestamps.
This is a great example of why weak functions are dangerous, and how
easy it is to miss subtle yet strong interactions between subsystems
and the coreboot buildsystem.
Change-Id: I656f9bd58a6fc179d9dbbc496c5b684ea9288eb5
Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com>
Reviewed-on: https://review.coreboot.org/14860
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
strlen(string) was on the "negative" side of the selection operator, the
side where string is NULL.
Change-Id: Ic421a5406ef788c504e30089daeba61a195457ae
Reported-by: Coverity Scan (CID 1355263)
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/14867
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@google.com>
|
|
Add helper functions for generating some common objects:
acpigen_write_STA(status) will generate a status method that will
indicate the device status as provided:
Method (_STA) { Return (status) }
Full status byte configuration is possible and macros are provided for
the common status bytes used for generated code:
ACPI_STATUS_DEVICE_ALL_OFF = 0x0
ACPI_STATUS_DEVICE_ALL_ON = 0xF
acpigen_write_PRW() will generate a Power Resoruce for Wake that describes
the GPE that will wake a particular device:
Name (_PRW, Package (2) { wake, level }
Change-Id: I10277f0f3820d272d3975abf34b9a8de577782e5
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14795
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
In order to produce smaller AML and not rely on the caller to size the
output type appropriately add a helper function that will output an
appropriately sized integer.
To complete this also add helper functions for outputting the single
OpCode for Zero and One and Ones.
And finally add "name" variants of the helpers that will output a
complete sequence like "Name (_UID, Zero)".
Change-Id: I7ee4bc0a6347d15b8d49df357845a8bc2e517407
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14794
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
|
|
Add helper function to emit a string into the SSDT AML bytestream with a
NULL terminator. Also add a helper function to emit the string OpCode
followed by the string itself.
acpigen_emit_string(string) /* Raw string output */
acpigen_write_string(string) /* OpCode followed by raw string */
Change-Id: I4a3a8728066e0c41d7ad6429fad983e6ae6962fe
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14793
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
|
|
Add helpers for writing word and dword values in acpigen and use them
throughout the file to clean things up:
acpigen_emit_word - write raw word
acpigen_emit_dword - write raw dword
acpigen_write_word - write word opcode and value
Change-Id: Ia758d4dd25d0ae5b31be7d51b33866dddd96a473
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14792
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
|
Change-Id: I5373be7ab55ac3c4f2e4dd753c6ad8e91712ff7e
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/14738
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
|
|
It's unused.
Change-Id: I50af2b50d2c5a7a24afe9099c5c01d17ce54a6c9
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/14569
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
It isn't used anymore.
Change-Id: Ie554d1dd87ae3f55547466e484c0864e55c9d102
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/14567
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
|
|
The skylake-based Chromebooks use a separate verstage which runs
just after bootblock and prior to romstage. The normal path for
romstage would be to reload the gdt, however in the previously
described scenario has verstage performing that work. Therefore,
provide that path under those conditions. The only difference
from the C_ENVIRONMENT_BOOTBLOCK scenario is that the stack
should not be reloaded since there's no way to know the top
of the stack.
Change-Id: Ic39ab52a856233d3042ac02a15ae4816ddfe07c7
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14548
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
|
|
The path that just clears CAR_GLOBAL variables and jumps
to the stage entry point needs another condition for
separate verstage just after bootblock. However, the
current conditional is a negative conditional so
swap the logic around to make it easier to extend.
Change-Id: Iab6682498054715a6eaa0476390da6355238b9bc
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14547
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
|
|
Utilize the architecture dependent coreboot table size value
from <arch/cbconfig.h>
Change-Id: I80d51a5caf7c455b0b47c380e1d79cf522502a4c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14455
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
|
|
Stefan and others have discussed their interest in only
including options in Kconfig that are directly associated
with building a coreboot image. There are variables that
are architecture dependent that are utilized in the
coreboot infrastructure. To meet that goal, introduce
<arch/cbconfig.h> header file which defines variables
for the coreboot infrastructure that are architecture
dependent but utilized in common infrastructure.
Change-Id: Ic4cb9e81bab042797539dce004db0f7ee8526ea6
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14454
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
|
|
C_ENVIRONMENT_BOOTBLOCK on x86 is like romstage and uses cache-as-ram
separately. It does not use any data/bss sections.
Change-Id: I8957f467f01e754fa2d95783466a01daa6c4e51a
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/14533
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
|
|
In order to de-duplicate common patterns implement one write_tables()
function. The new write_tables() replaces all the architecture-specific
ones that were largely copied. The callbacks are put in place to
handle any per-architecture requirements.
Change-Id: Id3d7abdce5b30f5557ccfe1dacff3c58c59f5e2b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14436
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
Add a architecture specific function, arch_write_tables(), that
allows an architecture to add its required tables for booting.
This callback helps write_tables() to be de-duplicated.
Change-Id: I805c2f166b1e75942ad28b6e7e1982d64d2d5498
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14435
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
A architecture-specific function, named bootmem_arch_add_ranges(),
is added so that each architecture can add entries into the bootmem
memory map. This allows for a common write_tables() implementation
to avoid code duplication.
Change-Id: I834c82eae212869cad8bb02c7abcd9254d120735
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14434
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
In addition to being consistent with all other architectures,
all chipsets support cbmem so the low coreboot table path is
stale and never taken. Also it's important to note the memory
written in to that low area of memory wasn't automatically
reserved unless that path was taken. To that end remove
low coreboot table support for x86.
Change-Id: Ib96338cf3024e3aa34931c53a7318f40185be34c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14432
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
There were quite a number of #if/#endif guards in the
write_tables() code. Clean up that function by splitting
up the subcomponents into their own individual functions.
The same ordering and logic is kept maintained.
The changes also benefit the goal of using a common core
write_tables() logic so that other architectures don't
duplicate large swaths of code.
Change-Id: I93f6775d698500f25f72793cbe3fd4eb9d01a20c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14431
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
Each arch was calling cbmem_list() in their own write_tables()
function. Consolidate that call and place it in common code
in write_coreboot_table().
Change-Id: If0d4c84e0f8634e5cef6996b2be4a86cc83c95a9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14430
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
Instead of hard coding a #define in each architecture's
tables.c for the coreboot table size in cbmem use a Kconfig
varible. This aids in aligning on a common write_tables()
implementation instead of duplicating the code for each
architecture.
Change-Id: I09c0f56133606ea62e9a9c4c6b9828bc24dcc668
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14429
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
Instead of re-defining the macros, include cpu/x86/cr.h in
bootblock_crt0.S to re-use already defined macros for accessing CR*
flags.
Change-Id: Idade02f7a6bc880c9aad3bfacd05ac57b6d04e44
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/14359
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
|
|
In order to not muddle arch vs chipset implementations provide
a generic prog_segment_loaded() which calls platform_segment_loaded()
and arch_segment_loaded() in that order. This allows the arch variants
to live in src/arch while the chipset/platform code can implement
their own.
Change-Id: I17b6497219ec904d92bd286f18c9ec96b2b7af25
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14214
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
|
|
While rmodule_load() calls arch_segment_loaded() when it's done
loading any pieces of code which further modify it, like changing
parameters within the program itself, need to notify the rest of
the system.
Change-Id: Ia3374b58488120ba6279592a77d7f9c6217f1215
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14213
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
|
|
Certain chipsets don't have a memory-mapped boot media
so their code execution for stages prior to DRAM initialization
is backed by SRAM or cache-as-ram. The postcar stage/phase
handles the cache-as-ram situation where in order to tear down
cache-as-ram one needs to be executing out of a backing
store that isn't transient. By current definition, cache-as-ram
is volatile and tearing it down leads to its contents disappearing.
Therefore provide a shim layer, postcar, that's loaded into
memory and executed which does 2 things:
1. Tears down cache-as-ram with a chipset helper function.
2. Loads and runs ramstage.
Because those 2 things are executed out of ram there's no issue
of the code's backing store while executing the code that
tears down cache-as-ram. The current implementation makes no
assumption regarding cacheability of the DRAM itself. If the
chipset code wishes to cache DRAM for loading of the postcar
stage/phase then it's also up to the chipset to handle any
coherency issues pertaining to cache-as-ram destruction.
Change-Id: Ia58efdadd0b48f20cfe7de2f49ab462306c3a19b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14140
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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When CONFIG_X86_TOP4G_BOOTMEDIA_MAP was introduced verstage
was not updated. Correct this oversight.
Change-Id: I2775c08798906ba0ba55a361407d7d2b52313229
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14142
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Tested-by: build bot (Jenkins)
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The previous implementation assumed the CPU physical address size to
be 40 which is not true of all platforms. Use an existing function to
obtain the correct CPU physical address to report in the DMAR ACPI
table.
Change-Id: Ia79e9dadecc3f5f6a86ce3789b213222bef482b3
Signed-off-by: Jacob Laska <jlaska91@gmail.com>
Reviewed-on: https://review.coreboot.org/14102
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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This option is no longer needed, as FMAP support has been
fully integrated in coreboot
Change-Id: I6121b31bf946532717ba15e12f5c63d2baa95ab2
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14078
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Different DIMM modules give different SMBIOS type 17 lengths, so we
can't use `meminfo->dimm_cnt*len' for entry struct size, otherwise
it'll give a wrong SMBIOS size when two or more different DIMMs are
installed on the machine.
Change-Id: I0e33853f6aa4b30da547eb433839a397d451a8cf
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/14008
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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This adds a few assembly lines that are generic enough to be shared
between romstage and verstage that are ran in CAR. The GDT reload
is bypassed and the stack is reloaded with the CAR stack defined
in car.ld. The entry point for all those stages is car_stage_entry().
Change-Id: Ie7ef6a02f62627f29a109126d08c68176075bd67
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13861
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Attempt to better document the symbol usage in car.ld for
cache-as-ram usage. Additionally, add _car_region_[start|end]
that completely covers the entire cache-as-ram region. The
_car_data_[start|end] symbols were renamed to
_car_relocatable_data_[start|end] in the hopes of making it
clearer that objects within there move. Lastly, all these
symbols were added to arch/symbols.h.
Change-Id: I1f1af4983804dc8521d0427f43381bde6d23a060
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13804
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Those options have no effect or lead to compile error on ARM due
to fundamental incompatibilities. Add proper "depends on" clauses
to hide them.
Change-Id: I860fbd331439c25efd8aa92023195fda3add2e2c
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: https://review.coreboot.org/13904
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
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Instead of keeping track of all the combinations of entry points
depending on the stage and other options just use _start. That way,
there's no need to update the arch/header.ld for complicated cases
as _start is always the entry point for a stage.
Change-Id: I7795a5ee1caba92ab533bdb8c3ad80294901a48b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13882
Tested-by: build bot (Jenkins)
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
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In order to align the entry points for the various stages
on x86 to _start one needs to rename the reset_vector symbol.
The section is the same; it's just a symbol change.
Change-Id: I0e6bbf1da04a6e248781a9c222a146725c34268a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13881
Tested-by: build bot (Jenkins)
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
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Until recently x86 romstage used to be linked at some default
address. The address itself is not meaningful because the code
was normally relocated at address calculated during insertion
in CBFS. Since some newer SoC run romstage at CAR it became
useful to link romstage code at some address in CAR and avoid
relocation during build/run time altogether.
Change-Id: I11bec142ab204633da0000a63792de7057e2eeaf
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13860
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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Add more manufacturer IDs for vendor:
* GSkill
* OCZ
* Transcend
Change-Id: Ic7df76b1310b2c1abea9c5d2d8fd688cb2a713b8
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/13863
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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For C_ENVIRONMENT_BOOTBLOCK, memlayout.ld is added by call to
early_x86_stage. Remove redundant addition of memlayout.ld in this
case.
Change-Id: Ibb5ce690ac4e63f7ff5063d5bd04daeeb731e4d7
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/13777
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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Only i386 has code to support bounce buffer. For others coreboot
would silently discard part of binary which doesn't work and is a hell to debug.
Instead just die.
Change-Id: I37ae24ea5d13aae95f9856a896700a0408747233
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: https://review.coreboot.org/13750
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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The 8254 (Programmable Interrupt Timer) is becoming optional
on x86 platforms -- either from saving power or not including it
at all. To allow a payload to still use a TSC without doing
calibration provide the TSC frequency information in the coreboot
tables. That data is provided by code/logic already employed
by platform. If tsc_freq_mhz() returns 0 or
CONFIG_TSC_CONSTANT_RATE is not selected the coreboot table
record isn't created.
BUG=chrome-os-partner:50214
BRANCH=glados
TEST=With all subsequent patches confirmed TSC is picked up in
libpayload.
Change-Id: Iaeadb85c2648587debcf55f4fa5351d0c287e971
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13670
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
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Add lb_arch_add_records() to allow the architecture code to
generically hook into the coreboot table generation.
BUG=chrome-os-partner:50214
BRANCH=glados
TEST=With all subsequent patches confirmed lb_arch_add_records() is
called when a strong symbol is provided.
Change-Id: I7c69c0ff0801392bbcf5aef586a48388b624afd4
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13669
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
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On certain platforms, the boot media is either not memory-mapped, or
not mapped at the top of 4G. This makes the default mmap_boot
implementation unsuitable. Add an option to allow such platforms to
define their own mapping implementation.
Change-Id: I8293126fd9cc1fd3d75072f7811e659765348e4a
Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com>
Reviewed-on: https://review.coreboot.org/13319
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Certain platforms may need to limit their bootblock size to within
a given size because specific constraints. Allow the size to be
provided by the mainboard or chipset by way of the arch Kconfig
being processed after those.
Change-Id: I46cc6315918cde575070fa2d3e2514f28008f575
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13691
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
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This patch generalizes the approach previously used for ARM32
TTB_SUBTABLES to "auto-detect" whether a certain region was defined in
memlayout.ld. This allows us to get rid of the explicit Kconfig for the
TIMESTAMP region, reducing configuration redundancy and avoiding
confusion when setting up future boards.
(Removing armv4/bootblock_simple.c because it references this Kconfig
and it is a dead file that I just forgot to remove in CL:12076.)
BRANCH=None
BUG=None
TEST=Booted Oak and confirmed that all pre-RAM timestamps are still
there. Built Nyan and Falco.
Change-Id: I557a4b263018511d17baa4177963130a97ea310a
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/13652
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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It's no longer used. Remove it.
Change-Id: Id6f4084ab9d671e94f0eee76bf36fad9a174ef14
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13678
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Currently x86s select BOOTBLOCK_CUSTOM by default. With this
change BOOTBLOCK_CUSTOM is selected only if C bootblock isn't.
Change-Id: I218f3b4044175b89697790c82c384b0f85a27ade
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13642
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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Since cbmem is not initialized in bootblock, CAR_GLOBAL variables
can only be accessed directly similar to verstage.
Change-Id: Ifc705016290807c49dc8c49b581864cac2ad3f80
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13641
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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Some platforms may want to use C code in bootblock so they need
writable memory and CAR can be used for it. This change reserves
memory in CAR that can be used by bootblock and other CAR stages.
Change-Id: I8dec768cf8763dbe235f0ba1339079ebc49cbd9a
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13640
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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Instead of instructing users to edit xcompile when they want to build
a quark platform, give the build a way to set -march=586 so that
the quark code will build correctly. The Quark processor does not
support the instructions introduced with the Pentium 6 architecture.
Change-Id: I0ed69aadc515f86f76800180e0e33bcd75feac5a
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/13552
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: FEI WANG <wangfei.jimei@gmail.com>
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Change-Id: Ic1da46d2abc8d20987048e4ef1e7a776d0c685d6
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/13555
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
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Some newer x86 systems can boot from non-memory-mapped boot media
(e.g. EMMC). The bootblock may be backed by small amounts of SRAM, or
other memory, similar to how most ARM chipsets work. In such cases, we
may not have enough code space for romstage very early on. This means
that CAR setup and early boot media (e.g. SPI, EMMC) drivers need to
be implemented within the limited amount memory of storage available.
Since the reset vector has to be contained in this early code memory,
the bootblock is the best place to implement loading of other stages.
Implement a bootblock which does the minimal initialization, up to,
and including switch to protected mode. This then transfers control
to platform-specific code. No stack is needed, and control is
transferred via a "jmp" such that no stack operations are involved.
Change-Id: I009b42b9a707cf11a74493bd4d8c189dc09b8ace
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: https://review.coreboot.org/13485
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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