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The next patch will add a tsc subfolder that might end up containing
code that is guarded with different Kconfig options, so move the guards
into the Makefiles in the subfolders instead of guarding the inclusion
of the Makefiles in the subdirectories with the corresponding Kconfig
option.
Change-Id: Iafc867eb9adcb23e9a4878cc381684db6f9692d5
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48312
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
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There will be more files added to the common non-CAR Makefile.inc, so
use an ifeq statement there.
Change-Id: I1f71954d27fbf10725387a0e95bc57f5040024cc
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47880
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
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Since there are sub-directories for both the cache-as-RAM case and the
non-CAR case where the RAM is already initialized when the x86 cores are
released from reset, move the CAR-specific parts of the Makefile.inc to
another Makefile.inc in the car sub-directory. Further patches will add
a Makefile.inc to the non-CAR directory.
Change-Id: I43a3039237d96e02baa33488e71c5f24effe8359
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47875
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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As part of moving AGESA calls from bootblock to romstage, callback function
AGESA_HALT_THIS_AP must be available at romstage.
BUG=b:74236170
TEST=Build and boot grunt, actual test will be performed at a later patch.
Change-Id: I0992b2de5856881c19191ec4f637168727686524
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/25527
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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It was required for all cores use the same CAR teardown function
(exit_car.S and gcccar.inc). AGESA has already been modified to do the
AP to do the call out. Create assembly code to call chipset_teardown_car
and then enter an endless loop with halt instruction. Then create the
call out that will call this new assembly code.
BUG=b:70338633
AGESA COMMIT=3313d277
TEST=Created a debug version of AGESA that would print the returned
status of HALT_THIS_AP. Build code without the fix, see the return.
Build code with the fix, see that there's no return.
Change-Id: I05ee405812211d93dfdbdc5ee7d9978c2eb585e1
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/24999
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
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Insert a postcar stage for Stoney Ridge and move romstage's CAR
teardown there.
The AMD cache-as-ram teardown procedure currently uses a wbinvd
instruction to send CAR contents to DRAM backing. This allows
preserving stack contents and CAR globals after the teardown
happens, but likely results in memory corruption during S3 resume.
Due to the current base of the DCACHE region, reverting to an
invd instruction will break the detection mechanism for CAR
migrated variables. Using postcar avoids this problem.
The current behavior of AGESA is to set up all cores' MTRRs during
the AmdInitPost() entry point. This implementation takes control
back and causes postcar's _start to clear all settings and set
attributes only for the BIOS flash device, TSEG, and enough space
below cbmem_top to load and run ramstage.
BUG=b:64768556
Change-Id: I1045446655b81b806d75903d75288ab17b5e77d1
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/20966
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Add dedicated CAR setup and teardown functions and Kconfig
options to force their inclusion into the build. The .S files
are mostly duplicated code from the old cache_as_ram.inc file.
The .S files use global proc names in anticipation for use with
the Kconfig symbols C_ENVIRONMENT_BOOTBLOCK and POSTCAR_STAGE.
Move the mainboard romstage functionality into the soc directory
and change the function name to be compatible with the call
from assembly_entry.S. Drop the BIST check like other devices.
Move InitReset and InitEarly to bootblock. These AGESA entry
points set some default settings, and release/recapture the
AP cores. There are currently some early dependencies on
InitReset. Future work should include:
* Pull the necessary functionality from InitReset into bootblock
* Move InitReset and InitEarly to car_stage_entry() and out of
bootblock
- Add a mechanism for the BSP to give the APs an address
to call and skip most of bootblock and verstage (when
available) (1)
- Reunify BiosCallOuts.c and OemCustomize.c
(1) During the InitReset call, the BSP enables the APs by setting
core enable bits in F18F0x1DC and APs begin fetching/executing
from the reset vector. The BSP waits for all APs to also
reach InitReset, where they enter an endless loop. The BSP
sends a command to them to execute a HLT instruction and the
BSP eventually returns from InitReset. The goal would be to
preserve this process but prevent APs from rerunning early
code.
Change-Id: I811c7ef875b980874f3c4b1f234f969ae5618c44
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/19755
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Martin Roth <martinroth@google.com>
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