From 6526e78967276e0299e890020267c560223bc90a Mon Sep 17 00:00:00 2001 From: Subrata Banik Date: Wed, 26 Oct 2022 20:06:42 +0530 Subject: soc/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 Change-Id: I1886bc5e60c2f6bc1e2f9d3c8d9c11799d2b53c5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68901 Tested-by: build bot (Jenkins) Reviewed-by: Nick Vaccaro Reviewed-by: Eric Lai Reviewed-by: Ivy Jian --- src/soc/intel/alderlake/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'src/soc/intel/alderlake') diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig index 548ef3d712..cbc02e75e5 100644 --- a/src/soc/intel/alderlake/Kconfig +++ b/src/soc/intel/alderlake/Kconfig @@ -7,6 +7,7 @@ config SOC_INTEL_ALDERLAKE 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. -- cgit v1.2.3