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soc/intel/alderlake: Select SOC_INTEL_CSE_SEND_EOP_LATE for ADL-N 

On nissa, sending EOP late improves boot time by about 57ms.

Before (SOC_INTEL_CSE_SEND_EOP_EARLY):
943:after sending EOP to ME                           931,206 (58,431)
943:after sending EOP to ME                           932,911 (58,427)
943:after sending EOP to ME                           930,908 (58,429)
943:after sending EOP to ME                           941,357 (61,748)
943:after sending EOP to ME                           933,289 (62,050)
943:after sending EOP to ME                           939,578 (62,453)
943:after sending EOP to ME                           932,491 (62,050)
943:after sending EOP to ME                           929,693 (62,655)
943:after sending EOP to ME                           942,247 (62,654)
943:after sending EOP to ME                           936,984 (61,751)

After (SOC_INTEL_CSE_SEND_EOP_LATE):
943:after sending EOP to ME                           1,107,816 (3,498)
943:after sending EOP to ME                           1,053,286 (25,212)
943:after sending EOP to ME                           1,124,095 (3,511)
943:after sending EOP to ME                           1,098,591 (3,498)
943:after sending EOP to ME                           1,107,772 (3,499)
943:after sending EOP to ME                           1,080,008 (45,969)
943:after sending EOP to ME                           1,081,754 (8,024)
943:after sending EOP to ME                           1,109,193 (4,102)
943:after sending EOP to ME                           1,088,866 (4,201)
943:after sending EOP to ME                           1,081,684 (4,203)

BUG=b:247902068
TEST=EOP time is improved on nissa (measurements above).

Change-Id: I2389831b4ab62f247193b5b0c5ec201e12eaa3db
Signed-off-by: Reka Norman <rekanorman@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70849
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Reka Norman 2022-12-16 15:20:44 +11:00 committed by Martin L Roth
parent e8bef613df
commit f7bb72333a
1 changed files with 2 additions and 3 deletions
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5
src/soc/intel/alderlake/Kconfig
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@ -117,6 +117,8 @@ config CPU_SPECIFIC_OPTIONS
select SOC_INTEL_COMMON_FSP_RESET select SOC_INTEL_COMMON_FSP_RESET
select SOC_INTEL_COMMON_PCH_CLIENT select SOC_INTEL_COMMON_PCH_CLIENT
select SOC_INTEL_COMMON_RESET select SOC_INTEL_COMMON_RESET
select SOC_INTEL_CSE_SEND_EOP_EARLY if !SOC_INTEL_ALDERLAKE_PCH_N
select SOC_INTEL_CSE_SEND_EOP_LATE if SOC_INTEL_ALDERLAKE_PCH_N
select SOC_INTEL_CSE_SET_EOP select SOC_INTEL_CSE_SET_EOP
select SOC_INTEL_MEM_MAPPED_PM_CONFIGURATION select SOC_INTEL_MEM_MAPPED_PM_CONFIGURATION
select HAVE_INTEL_COMPLIANCE_TEST_MODE select HAVE_INTEL_COMPLIANCE_TEST_MODE
@ -458,9 +460,6 @@ config USE_COREBOOT_MP_INIT
endchoice endchoice
config SOC_INTEL_CSE_SEND_EOP_EARLY
default y
if STITCH_ME_BIN if STITCH_ME_BIN
config CSE_BPDT_VERSION config CSE_BPDT_VERSION