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| author | Subrata Banik <subratabanik@google.com> | 2022-11-21 17:39:57 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2022-11-23 13:30:51 +0000 |
| commit | 6a22c5f8ee5b9883f0a99d786491d6d70eb167d7 (patch) | |
| tree | be2e6200f2669292c1f72f59f782e91e11356e3e /src/soc | |
| parent | 8c974509ea90eec18e22027c3e71de3e875fc964 (diff) | |
| download | coreboot-6a22c5f8ee5b9883f0a99d786491d6d70eb167d7.tar.gz coreboot-6a22c5f8ee5b9883f0a99d786491d6d70eb167d7.tar.bz2 coreboot-6a22c5f8ee5b9883f0a99d786491d6d70eb167d7.zip | |
soc/intel/meteorlake: Select X86_INIT_NEED_1_SIPI Kconfig
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.
Port the Alder Lake 'commit 6526e7896727 ("soc/intel/alderlake: Select X86_INIT_NEED_1_SIPI Kconfig for RPL")' also to Meteor Lake.
Additionally, no performance degradation is observed while running
benchmarks.
BUG=b:211770003
TEST=Able to boot Google, Rex to ChromeOS with all cores enabled.
Without this patch:
30:device enumeration 1,480,217 (28,232)
With this patch:
30:device enumeration 1,472,466 (18,334)
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Iec21470b9b34514169789c39bdc3be4e4ff6c7b5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69851
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/meteorlake/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig index b8e4052397b7..dcb2556d0d77 100644 --- a/src/soc/intel/meteorlake/Kconfig +++ b/src/soc/intel/meteorlake/Kconfig @@ -90,6 +90,7 @@ config CPU_SPECIFIC_OPTIONS select TSC_MONOTONIC_TIMER select UDELAY_TSC select UDK_202111_BINDING + select X86_INIT_NEED_1_SIPI config MAX_CPUS int |