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Change-Id: I1f44ffeb54955ed660162a791c6281f292b1116a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31715
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
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Fail builds if MRC blobs pool heap would get corrupted
by CAR relocatable data from coreboot proper.
Add runtime logging how much pool was required.
Change-Id: Ibc771b592b35d77be81fce87769314fe6bb84c87
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31150
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The other DEFAULT_ entries are just immediate
constants.
Change-Id: Iebf4266810b8210cebabc814bba2776638d9b74d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31758
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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MMIO operations are arch-agnostic so the include
path should not be arch/.
Change-Id: I0fd70f5aeca02e98e96b980c3aca0819f5c44b98
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31691
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I91158452680586ac676ea11c8589062880a31f91
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31692
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Fixes indirect includes that would break with followup work.
Change-Id: I37ca01b904a0b422a4d09475377e755e167a6ab3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31697
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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IASL version 20180927 and greater, detects Unnecessary/redundant uses of
the Offset() operator within a Field Unit list.
It then sends a remark "^ Unnecessary/redundant use of Offset"
example:
OperationRegion (OPR1, SystemMemory, 0x100, 0x100)
Field (OPR1)
{
Offset (0), // Never needed
FLD1, 32,
Offset (4), // Redundant, offset is already 4 (bytes)
FLD2, 8,
Offset (64), // OK use of Offset.
FLD3, 16,
}
We will have those remarks:
dsdt.asl 14: Offset (0),
Remark 2158 - ^ Unnecessary/redundant use of Offset
operator
dsdt.asl 16: Offset (4),
Remark 2158 - ^ Unnecessary/redundant use of Offset
operator
Change-Id: Ie1f2a2ace335af7984209c9e286b9f85e5342a7e
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/31671
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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PCI config accessors are no longer indirectly included
from <arch/io.h> use <device/pci_ops.h> instead.
Change-Id: I2adf46430a33bc52ef69d1bf7dca4655fc8475bd
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31675
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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We have NO_CAR_GLOBAL_MIGRATION now.
Change-Id: I077f235029e3fe3b1368f028981985895d8b766b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30505
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Some similar calls to postcar_frame_add_mtrr() were added in the
meantime or were under review while postcar_frame_add_romcache()
was introduced.
Change-Id: Ia8771dc007c02328bd4784e6b50cada94abba198
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/31320
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Change-Id: I959dfd1c10bc1ab85c6392e0090b022934468770
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31292
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: Ibb7ce42588510dc5ffb04c950c4c8c64e9a2fa37
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/31238
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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This moves a lot of the common romstage boilerplate code to a common
location, while adding a few mainboard specific hooks.
Another difference is that the settings for enable_igd and enable_peg
are now based on the static devicetree settings.
Change-Id: I30ef7f6962aabde78b5c40e0b53bb85e01c254c1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/31190
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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Datasheets describe the used command as 'I2C Read' but adding the
word 'eeprom' in between should avoid further confusion with other
block commands.
Followups will add a symmetrical pair of commands i2c_block_read()
and i2c_block_write() that operate via I2C_EN bit and have a 32
byte size restriction on block transfers. For some hardware revision
these block commands are available, while 'I2C Read' was not.
Change-Id: I4494ab2985afc7f737ddacc8d706a5d5395e35cf
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31151
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: Ib894c24bc787c6c211da26dca78bcd330ded6681
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/31063
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Upper 128bytes of CMOS and RCBA are already enabled at bootblock.
Tested on 945g-MA. Resuming from suspend is working fine
Change-Id: I3f34380b0e700cf60688ad58465f9cb0aeda0928
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/31107
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The iGPU always needs access to its stolen memory. For proper IOMMU
support, we have to make the OS aware of that.
Directly below TOLUD lies the data stolen memory (BDSM) followed by
the GTT stolen memory (BGSM), the iGPU needs access to both.
Change-Id: I391d0a5f1ea14bc90fbacabce41dddfa12b5bb0d
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/29668
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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TSEG is not accessible in ring 0 after it is locked in ramstage, in
contrast with cbmem which remains accessible. Assuming SMM does not
touch the cache this is a good region to cache stages.
Tested on Intel DG41WV, the stage cache gets properly created and used
on S3 resume.
Change-Id: Ie46c1416f8042d5571339b36e1253c0cae0684b8
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25606
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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TSEG is not accessible in ring 0 after it is locked in ramstage, in
contrast with cbmem which remains accessible. Assuming SMM does not
touch the cache this is a good region to cache stages.
Tested on Foxconn D41S.
Change-Id: I3d163e8ff328ba01425b524a673f34a96fb93ea7
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25605
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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TSEG is not accessible in ring 0 after it is locked in ramstage, in
contrast with cbmem which remains accessible. Assuming SMM does not
touch the cache this is a good region to cache stages.
Tested on Lenovo thinkpad X200: on cold boot the external stage cache
gets created and the cached ramstage gets successfully used on the S3
resume path.
Change-Id: I642f7d6ae5523a35904c8e1f029027565a364d26
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25604
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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TSEG is not accessible in ring 0 after it is locked in ramstage, in
contrast with cbmem which remains accessible. Assuming SMM does not
touch the cache this is a good region to cache stages.
Tested on Intel D945GCLF and Lenovo Thinkpad X60, on cold boot the
external stage cache gets created and the stage cache gets properly
used on S3 resume.
Change-Id: I447815bb0acf5f8e53834b74785d496f9d4df1da
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25603
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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RPFN is a R/WO register we write on it in i945/early_init.c and i82801gx/pcie.c
Drop the romstage write.
Change-Id: If9a131ad12530876a650b7a38daa9c9fc52aefb7
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/31005
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Remove guards around CPU code on which all platforms use parallel MP
init code.
This removes the option to disable HT siblings.
Tested on Foxconn D41S.
Change-Id: I89f7d514d75fe933c3a8858da37004419189674b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25602
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Use parallel MP init code to initialize all AP's.
Also remove guards around CPU code where all platforms now use
parallel MP init.
This also removes the code required on lapic init path for
model_6fx, model_1017x and model_f4x as all platforms now use the
parallel MP code.
Tested on Intel DG41WV, shaves off about 90ms on a quad core.
Change-Id: Id5a2729f5bf6b525abad577e63d7953ae6640921
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25601
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Use the parallel mp init path to initialize AP's. This should result
in a moderate speedup.
Tested on Intel D945GCLF (1 core 2 threads), still boots fine and is
26ms faster compared to lapic_cpu_init.
This removes the option to disable HT siblings.
Change-Id: I955551b99e9cbc397f99c2a6bd355c6070390bcb
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25600
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
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This places the parallel mp ops up in the model_1067x dir and is
included from other Intel core2 CPU dirs that can use the same code.
Tested on Thinkpad X200 on which boot time is reduced by ~35ms.
Change-Id: Iac416f671407246ee223075eee1aff511e612889
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/23434
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: Ib93b816e7ab3146f6f70ad4089327cd6b7bc7c24
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30893
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: David Guckian
Reviewed-by: Vanny E <vanessa.f.eusebio@intel.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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This patch adds a few southbridge calls needed for parallel MP init.
Moves the smm_relocate() function to smm/gen1/smi.h, since that is
where this function is defined now.
Tested on Thinkpad X220, shaves off ~30ms on a 2 core, 4 threads CPU.
Change-Id: Ia1d547ed4a3cb6746a0222c3e54e94e5848b0dd7
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/25618
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Libgfxinit provides a better alternative to the native C init. While
libgfxinit mandates an ada compiler, we want to encourage use of it
since it is in much better shape and is actually maintained.
This way libgfxinit also gets build-tested by Jenkins.
Change-Id: Ic6678d3455f1116e7e67a67b465a79df020b2399
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/27532
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Does not fix 3rdparty/, *.S or *.ld or yet.
Change-Id: I66b48013dd89540b35ab219d2b64bc13f5f19cda
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/17656
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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With the only valid GTT setting being 1M, TSEG_BASE can only be
aligned to TSEG_SIZE if it is also 1M. This alignment requirement
comes from the desire to use SMRR to protect the SMM RAM.
Tested on Foxconn D41S.
Change-Id: Ibd879529923a1676f2e78500797a52d8a37b8eef
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30869
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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The mainboard_romstage_entry function is mostly boilerplate, so move
it to a common location and provide mainboard specific callbacks.
Change-Id: I33cf1d6a60d272f490f41205ec725dee8b00242b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30851
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Change-Id: I6ca83bde61f231b9f79c90af1d6c1cfa1a027768
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30852
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Use hexdump() instead of dump_mem().
Change-Id: I7f6431bb2903a0d06f8ed0ada93aa3231a58eb6f
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/29853
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Guckian
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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It's supposed to be the same device that is passed to the executing
function.
Change-Id: I6cf994390c16e0393c96a2b2e04a36305be88e68
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/30880
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Also removes one call for 0:2.0 (integrated graphics) that might be
disabled.
Change-Id: I494aa366030b77baf431f29ba331f13f7c567025
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/30881
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Change-Id: Iacbee658a4049e1c13a120dbc21425ffb6a1cabb
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/30750
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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First initialisation is already in cpu/intel/car/romstage.c.
Change-Id: If3e5068b4a9981354f0fca5fc12b6b81de1c8f4b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30779
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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The initial timestamps are now pushed on the stack when entering the
romstage C code.
Tested on Asus P5QC.
Change-Id: I88e972caafff5c53d8e68e85415f920c7341b92d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30670
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Libgfxinit provides a better alternative to the native C init. While
libgfxinit mandates an ada compiler, we want to encourage use of it
since it is in much better shape and is actually maintained.
This way libgfxinit also gets build-tested by Jenkins.
Change-Id: I540cf08cef6ff7825694ebfa36e2e6437916e657
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/27016
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Currently this needlessly initializes the hardware in the both the
romstage and the bootblock, but it works.
Build option is renamed to USBDEBUG_IN_PRE_RAM to reflect the
use better, related support files can be built to pre-ram stages
regardless of usbdebug being enabled or not.
Tested on Google/peppy (adapted to C_ENVIRONMENT_BOOTBLOCK).
Change-Id: Ib77f2fc7f3d8fa524405601bae15cce9f76ffc6f
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30480
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Expose the function that can unconditionally re-initialise
EHCI debug host and gadget.
Given the missing header in soc/intel files that prevented
building with USBDEBUG_IN_ROMSTAGE=y, it is not actually
known if those SOCs work at all for usbdebug.
Change-Id: I8ae7e144a89a8f7e5f9d307ba4e73d4f96401a79
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30557
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: I2e28b9f4ecaf258bff8a062b5a54cb3d8e2bb9b0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30400
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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Change-Id: Icf34b39d80f6e46d32a39b68f38fb2752c0bcebc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/26484
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Piotr Król <piotr.krol@3mdeb.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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These few cases lacked a proper devfn parameter in the
form of PCI_DEVFN(dev, fn).
Change-Id: Iad0b214df12dee65360d07e887a960b0c73a3e4f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/26481
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
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This was already disabled and mostly incompatible
with romstage having stack in CAR.
Change-Id: I1fe02bef668a5bc8ce3d5a1d8090670752b10c3e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30621
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: I1e0009677fda44faab2021e1c44827fdba803061
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/30612
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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This means that any PCIe device placed in a PEG slot should now work.
During S3 resume, link training sometimes does not complete before
device enumeration. However, no tangible issues have been observed.
Fixing it would introduce a rather large delay in S3 resume.
There are a few minor shortcomings:
- Using PEG for display output is not yet supported.
- Only PEG2 is supported. An extra (unknown) training sequence is said to
be needed for PEG3.
- The ACPI _PRT method is not yet generated, so legacy interrupt routing
doesn't work for devices with multiple functions.
Tested on an ASRock H81M-HDS. Using a Radeon HD 6450 graphics card works
under GNU/Linux, with PRIME [1]. An x1 PCIe card was also tested in the
PEG slot, and it appears functional.
[1]: https://wiki.archlinux.org/index.php/PRIME
Change-Id: I786ecb6eccad8de89778af7e736ed664323e220e
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/c/30272
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Processor graphics is disabled on, for example, the C222 and C224
chipsets.
The change to resource assignment in northbridge.c prevents the following
warning that occurs when the IGD is disabled:
> skipping PCI: 00:00.0@3 fixed resource, size=0!
Tested on a Supermicro X10SLM+-F, which has the IGD disabled by the
chipset. The graphics memory is reclaimed and no issues were observed.
Also tested on an ASRock H81M-HDS. This board has an IGD, but no
regressions were observed.
Change-Id: I86d4aef50b6588f08b86c9758a4b95ccd65e9a96
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/c/30271
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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The existing code sets DEVEN with the intention of enabling the IGD and
Mini-HD audio. However, according to the datasheet [1] and some testing
on hardware, the bits in DEVEN are set by default if and only if the
straps/fuses say the device should be enabled. To illustrate this, here
are a few initial values of DEVEN on some Haswell systems:
Supermicro X10SLM+-F: 0x0000002d
ASRock H81M-HDS: 0x00000039
Acer C720: 0x000000b1
On the X10SLM+-F, the IGD is disabled by default, and PEG10 & PEG11
are enabled by default. On the C720, the PEG devices are all disabled
by default, while the IGD and Mini-HD audio are already enabled.
There are two issues that result from the existing behaviour: PEG
devices are unconditionally disabled, and devices are set as enabled
when it's not actually possible to enable them.
So, don't touch the DEVEN register at this stage, as there are no
benefits.
Interestingly, on an Acer C720 (Google Peppy), a PCI device 00:04.0
appears. It is a thermal sensor. `powerstat` was used to measure idle
power usage over 30 minutes under Debian GNU/Linux 9.6. There was no
change in reported power draw.
[1] Desktop 4th Generation Intel® Core TM Processor Family, Desktop
Intel® Pentium® Processor Family, and Desktop Intel® Celeron®
Processor Family Datasheet – Volume 2 of 2.
December 2013, revision 003, document number 328898.
Change-Id: I242f9138472de5a0b26b5852f632b53b2920132d
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/c/30269
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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