tree 87b245a49152db195534b54e5c808995ad641b04
parent 2f5025efeda354cf3180059ade8e35201884bea3
author Subrata Banik <subratabanik@google.com> 1666795002 +0530
committer Subrata Banik <subratabanik@google.com> 1666860657 +0000

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>