From e4109ff54ff3268fe65739e8efe79b57e67d2e3c Mon Sep 17 00:00:00 2001 From: Ravi Sarawadi Date: Wed, 8 Jul 2020 23:11:01 -0700 Subject: soc/intel/tigerlake: Update Pkg C-State latencies Update to recommended C-state entry/exit latencies as per BWG(611569) Rev 0.8: section 4.5.3.2.2 BUG=none TEST=Boot to OS and check C-State latencies "cat /sys/devices/system/cpu/cpu0/cpuidle/state*/{name,latency}" Signed-off-by: Ravi Sarawadi Change-Id: Ic1258ecbb355b94889b30d01bceca586525bbe5e Reviewed-on: https://review.coreboot.org/c/coreboot/+/43316 Reviewed-by: Wonkyu Kim Reviewed-by: Duncan Laurie Reviewed-by: Shreesh Chhabbi Tested-by: build bot (Jenkins) --- src/soc/intel/tigerlake/include/soc/cpu.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/src/soc/intel/tigerlake/include/soc/cpu.h b/src/soc/intel/tigerlake/include/soc/cpu.h index 28dfb386c9..47a41ebc99 100644 --- a/src/soc/intel/tigerlake/include/soc/cpu.h +++ b/src/soc/intel/tigerlake/include/soc/cpu.h @@ -7,11 +7,11 @@ /* Latency times in us */ #define C1_LATENCY 1 -#define C6_LATENCY 127 -#define C7_LATENCY 253 -#define C8_LATENCY 260 -#define C9_LATENCY 487 -#define C10_LATENCY 1048 +#define C6_LATENCY 121 +#define C7_LATENCY 152 +#define C8_LATENCY 256 +#define C9_LATENCY 340 +#define C10_LATENCY 1034 /* Power in units of mW */ #define C1_POWER 0x3e8 -- cgit v1.2.3