From b95530486998889b5afce8df260a694a0333693c Mon Sep 17 00:00:00 2001 From: Subrata Banik Date: Thu, 24 Nov 2022 23:48:13 +0530 Subject: soc/intel/meteorlake: Allow sending late EOP cmd to CSE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Change-Id: I7d44d5eff890ac78e3075d49cc249f740686dd0d Reviewed-on: https://review.coreboot.org/c/coreboot/+/69999 Reviewed-by: Ivy Jian Reviewed-by: Kapil Porwal Tested-by: build bot (Jenkins) --- src/soc/intel/meteorlake/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'src/soc/intel/meteorlake/Kconfig') diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig index c3efd3e381..fb99d30b53 100644 --- a/src/soc/intel/meteorlake/Kconfig +++ b/src/soc/intel/meteorlake/Kconfig @@ -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 -- cgit v1.2.3