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>
diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig
index c3efd3e..fb99d30 100644
--- a/src/soc/intel/meteorlake/Kconfig
+++ b/src/soc/intel/meteorlake/Kconfig
@@ -82,6 +82,7 @@
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