tree ba6ad2e8df36ab6f88a9407dd3b8dcf44e90317a
parent 79f705fa34f2b5cecf19d183a42eaf4d57f87941
author Felix Held <felix-coreboot@felixheld.de> 1619108803 +0200
committer Felix Held <felix-coreboot@felixheld.de> 1619200138 +0000

soc/amd/picasso/cpu: make sure that MAX_CPUS isn't overridden

Trying to limit the number of available cores by setting the MAX_CPUS
Kconfig option to a lower value than the SoC's default might result in
cores being enabled in the FSP-S, but not fully initialized in coreboot
which will cause some malfunction. Add a static assert to make sure
that this option isn't changed from the default. To limit the maximum
number of cores, use the downcore_mode and disable_smt devicetree
settings instead.

TEST=Build fails if MAX_CPUS isn't the expected default.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I3cfe09f8bb89a2154d37a37398df982828c824f9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52611
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>