diff options
Diffstat (limited to 'resources/coreboot/fam15h_rdimm/patches/0003-Tweak-cmos-defaults-for-KCMA-D8-for-a-little-speed-b.patch')
| -rw-r--r-- | resources/coreboot/fam15h_rdimm/patches/0003-Tweak-cmos-defaults-for-KCMA-D8-for-a-little-speed-b.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/resources/coreboot/fam15h_rdimm/patches/0003-Tweak-cmos-defaults-for-KCMA-D8-for-a-little-speed-b.patch b/resources/coreboot/fam15h_rdimm/patches/0003-Tweak-cmos-defaults-for-KCMA-D8-for-a-little-speed-b.patch new file mode 100644 index 00000000..5a39bd69 --- /dev/null +++ b/resources/coreboot/fam15h_rdimm/patches/0003-Tweak-cmos-defaults-for-KCMA-D8-for-a-little-speed-b.patch @@ -0,0 +1,38 @@ +From 7a00638cea41ad939a59fc0e5996959435fbdb7f Mon Sep 17 00:00:00 2001 +From: "D.d.P.F. Lombard" <lombard@lombards.xyz> +Date: Sun, 7 Feb 2021 16:40:05 +0100 +Subject: [PATCH 3/6] Tweak cmos defaults for KCMA-D8 (for a little speed + boost) + +63xx CPUs have the option to use a reduced latency value inside the crossbar. +Setting "experimental_memory_speed_boost=Enable" aparently only has an effect +on 63xx CPUs and may, in certain cases, yield a slight memory bandwidth +increase (according to Timothy Pearson), but maybe it also works for +43xx CPUs. + +Setting "l3_cache_partitioning=Enable" will increase performance in certain +situations. See: +https://developer.arm.com/documentation/100453/0401/functional-description/l3-cache/l3-cache-partitioning?lang=en +--- + src/mainboard/asus/kcma-d8/cmos.default | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/src/mainboard/asus/kcma-d8/cmos.default b/src/mainboard/asus/kcma-d8/cmos.default +index 306687157f..4e033d756f 100644 +--- a/src/mainboard/asus/kcma-d8/cmos.default ++++ b/src/mainboard/asus/kcma-d8/cmos.default +@@ -21,9 +21,9 @@ sata_ahci_mode=Enable + sata_alpm=Disable + maximum_p_state_limit=0xf + probe_filter=Auto +-l3_cache_partitioning=Disable ++l3_cache_partitioning=Enable + gart=Enable + ehci_async_data_cache=Enable +-experimental_memory_speed_boost=Disable ++experimental_memory_speed_boost=Enable + power_on_after_fail=On + boot_option=Fallback +-- +2.25.1 + |