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 <subratabanik@google.com> Change-Id: I1886bc5e60c2f6bc1e2f9d3c8d9c11799d2b53c5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68901 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nick Vaccaro <nvaccaro@google.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
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@ -7,6 +7,7 @@ config SOC_INTEL_ALDERLAKE
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config SOC_INTEL_RAPTORLAKE
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bool
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select X86_INIT_NEED_1_SIPI
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help
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Intel Raptorlake support. Mainboards using RPL should select
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SOC_INTEL_RAPTORLAKE and SOC_INTEL_ALDERLAKE_PCH_* together.
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