From 9dcd1c1173be1cfd5e73d9aca9d6de2353f1b5d9 Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Wed, 28 Oct 2020 22:41:26 +0100 Subject: cpu/intel/haswell: Raise PSI1 threshold to 20A Haswell reference code version 1.9.0 uses the same value as Broadwell. Change-Id: I979ea1b4ba2962bd0c55cfb9d0c291f32cf5fcad Signed-off-by: Angel Pons Reviewed-on: https://review.coreboot.org/c/coreboot/+/46919 Reviewed-by: Nico Huber Tested-by: build bot (Jenkins) --- src/cpu/intel/haswell/haswell_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/cpu/intel/haswell') diff --git a/src/cpu/intel/haswell/haswell_init.c b/src/cpu/intel/haswell/haswell_init.c index 920a7e7bb3..369ace9b45 100644 --- a/src/cpu/intel/haswell/haswell_init.c +++ b/src/cpu/intel/haswell/haswell_init.c @@ -260,7 +260,7 @@ static void initialize_vr_config(void) msr.hi &= 0xc0000000; msr.hi |= (0x01 << (52 - 32)); /* PSI3 threshold - 1A. */ msr.hi |= (0x05 << (42 - 32)); /* PSI2 threshold - 5A. */ - msr.hi |= (0x0f << (32 - 32)); /* PSI1 threshold - 15A. */ + msr.hi |= (0x14 << (32 - 32)); /* PSI1 threshold - 20A. */ if (haswell_is_ult()) msr.hi |= (1 << (62 - 32)); /* Enable PSI4 */ -- cgit v1.2.3