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soc/intel/meteorlake: Allow sending late EOP cmd to CSE 

This patch selects SOC_INTEL_CSE_SEND_EOP_LATE config to let IA
common code to skip sending CSE EOP cmd during finalize operation
rather uses boot state machine (either payload load or payload boot)
to delay in sending EOP cmd to CSE.

BUG=b:260041679
TEST=Able to boot to Google/Rex with this patch and observed ~150ms
savings in boot time

Without this patch:

942:before sending EOP to ME	1,795,702 (354)
943:after sending EOP to ME	1,950,526 (154,824)

With this patch:

942:before sending EOP to ME	2,051,406 (35,484)
943:after sending EOP to ME	2,057,583 (6,177)

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I7d44d5eff890ac78e3075d49cc249f740686dd0d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69999
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Subrata Banik 2022-11-24 23:48:13 +05:30
parent adbef6d2b3
commit b955304869
1 changed files with 1 additions and 0 deletions
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1
src/soc/intel/meteorlake/Kconfig
View File

@ -82,6 +82,7 @@ config CPU_SPECIFIC_OPTIONS
select SOC_INTEL_COMMON_PCH_CLIENT
select SOC_INTEL_COMMON_RESET
select SOC_INTEL_COMMON_BLOCK_IOC
select SOC_INTEL_CSE_SEND_EOP_LATE
select SOC_INTEL_CSE_SET_EOP
select SOC_INTEL_GFX_NON_PREFETCHABLE_MMIO
select SOC_INTEL_MEM_MAPPED_PM_CONFIGURATION