Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/68901 )
Change subject: oc/intel/alderlake: Select X86_INIT_NEED_1_SIPI Kconfig for RPL ......................................................................
oc/intel/alderlake: Select X86_INIT_NEED_1_SIPI Kconfig for RPL
This patch helps to save 10.200ms of booting time without any issue seen during MP Init. All cores are out from reset and alive.
Additionally, no performance degradation is observed while running benchmarks.
Refer to Intel Technical White Paper number:751003 for more details.
BUG=b:211770003 TEST=Able to boot to ChromeOS with all cores are enabled.
Signed-off-by: Subrata Banik subratabanik@google.com Change-Id: I1886bc5e60c2f6bc1e2f9d3c8d9c11799d2b53c5 --- M src/soc/intel/alderlake/Kconfig 1 file changed, 22 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/01/68901/1
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig index 92a8c06..4fe9984 100644 --- a/src/soc/intel/alderlake/Kconfig +++ b/src/soc/intel/alderlake/Kconfig @@ -7,6 +7,7 @@
config SOC_INTEL_RAPTORLAKE bool + select X86_INIT_NEED_1_SIPI help Intel Raptorlake support. Mainboards using RPL should select SOC_INTEL_RAPTORLAKE and SOC_INTEL_ALDERLAKE_PCH_* together.