coreboot/fam15h: re-add kgpe-d16 and kcma-d8

also kfsn4-dre

this is still based on the old coreboot 4.11 version.

i have on todo to adapt dasharo coreboot for use in the master
branch of lbmk, for mainline libreboot releases.

since i'm doing c-libreboot for the GNU project, namely GNU Boot,
and since GNU Boot has dre/d8/d16 in their tree, re-add it here
for them.

i literally just copied this from them, who in turn copied it from
libreboot in an older revision anyway.

but there is one fix:

src/vendorcode/cavium/bdk/libbdk-hal/if/bdk-if-phy-vetesse.c

^ this blob wasn't being deleted by gnuboot, nor by libreboot
in the older revision that it forked from. an oversight. i decided
to audit the deblobbing and found this one was overlooked, out of
about 900 files picked up by deblob-check.

so this re-addition of dre/d8/d16 support is actually even better
deblobbed than gnuboot, or old-libreboot.

Signed-off-by: Leah Rowe <leah@libreboot.org>

3 files changed, 178 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
+
diff --git a/resources/coreboot/fam15h_rdimm/patches/0004-Do-not-use-microcode-updates-on-AMD-platforms.patch b/resources/coreboot/fam15h_rdimm/patches/0004-Do-not-use-microcode-updates-on-AMD-platforms.patch
new file mode 100644
index 00000000..7f81fd2c
--- /dev/null
+++ b/resources/coreboot/fam15h_rdimm/patches/0004-Do-not-use-microcode-updates-on-AMD-platforms.patch
@@ -0,0 +1,108 @@
+From 2b1d40b970d9cbbb4f8fe30679e9b6909aa3d99a Mon Sep 17 00:00:00 2001
+From: Leah Rowe <leah@libreboot.org>
+Date: Thu, 6 May 2021 17:07:06 +0100
+Subject: [PATCH 4/6] Do not use microcode updates on AMD platforms
+
+Coreboot is hardcoding the use of microcode updates on some platforms.
+
+Just nuke it from orbit. This is the libre branch of osboot, so microcode must
+not be used.
+---
+ src/cpu/Makefile.inc                          | 52 +------------------
+ src/cpu/amd/family_10h-family_15h/Kconfig     |  1 -
+ .../amd/family_10h-family_15h/Makefile.inc    | 10 +---
+ 3 files changed, 2 insertions(+), 61 deletions(-)
+
+diff --git a/src/cpu/Makefile.inc b/src/cpu/Makefile.inc
+index b80c30d72b..e7909d32ed 100644
+--- a/src/cpu/Makefile.inc
++++ b/src/cpu/Makefile.inc
+@@ -14,54 +14,4 @@ $(eval $(call create_class_compiler,cpu_microcode,x86_32))
+ ## Rules for building the microcode blob in CBFS
+ ################################################################################
+ 
+-ifneq ($(CONFIG_CPU_MICROCODE_MULTIPLE_FILES), y)
+-cbfs-files-$(CONFIG_USE_CPU_MICROCODE_CBFS_BINS) += cpu_microcode_blob.bin
+-endif
+-
+-ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL_HEADER),y)
+-cbfs-files-y  += cpu_microcode_blob.bin
+-cpu_microcode_blob.bin-file = $(objgenerated)/microcode.bin
+-
+-$(objgenerated)/microcode.bin: $(call strip_quotes,$(CONFIG_CPU_MICROCODE_HEADER_FILES))
+-	echo "   util/scripts/ucode_h_to_bin.sh $(objgenerated)/microcode.bin \"$(CONFIG_CPU_MICROCODE_HEADER_FILES)\""
+-	util/scripts/ucode_h_to_bin.sh $(objgenerated)/microcode.bin $(CONFIG_CPU_MICROCODE_HEADER_FILES)
+-endif
+-
+-ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL_BINS),y)
+-cpu_microcode_bins := $(call strip_quotes,$(CONFIG_CPU_UCODE_BINARIES))
+-endif
+-# otherwise `cpu_microcode_bins` should be filled by platform makefiles
+-
+-# We just mash all microcode binaries together into one binary to rule them all.
+-# This approach assumes that the microcode binaries are properly padded, and
+-# their headers specify the correct size. This works fairly well on isolatied
+-# updates, such as Intel and some AMD microcode, but won't work very well if the
+-# updates are wrapped in a container, like AMD's microcode update container. If
+-# there is only one microcode binary (i.e. one container), then we don't have
+-# this issue, and this rule will continue to work.
+-$(obj)/cpu_microcode_blob.bin: $$(wildcard $$(cpu_microcode_bins))
+-	for bin in $(cpu_microcode_bins); do \
+-		if [ ! -f "$$bin" ]; then \
+-			echo "Microcode error: $$bin does not exist"; \
+-			NO_MICROCODE_FILE=1; \
+-		fi; \
+-	done; \
+-	if [ -n "$$NO_MICROCODE_FILE" ]; then \
+-		if [ -z "$(CONFIG_USE_BLOBS)" ] && [ -n "$(CONFIG_CPU_MICROCODE_CBFS_DEFAULT_BINS)" ]; then \
+-			echo "Try enabling binary-only repository in Kconfig 'General setup' menu."; \
+-		fi; \
+-		false; \
+-	fi
+-	$(if $^,,false) # fail if no file is given at all
+-	@printf "    MICROCODE  $(subst $(obj)/,,$(@))\n"
+-	@echo $(cpu_microcode_bins)
+-	cat $^ > $@
+-
+-cpu_microcode_blob.bin-file ?= $(obj)/cpu_microcode_blob.bin
+-cpu_microcode_blob.bin-type := microcode
+-
+-ifneq ($(CONFIG_CPU_MICROCODE_CBFS_LOC),)
+-cpu_microcode_blob.bin-COREBOOT-position := $(CONFIG_CPU_MICROCODE_CBFS_LOC)
+-else
+-cpu_microcode_blob.bin-align := 16
+-endif
++# No microcode permitted in this version of coreboot.
+diff --git a/src/cpu/amd/family_10h-family_15h/Kconfig b/src/cpu/amd/family_10h-family_15h/Kconfig
+index ad4f5f4ba6..21150ab1a7 100644
+--- a/src/cpu/amd/family_10h-family_15h/Kconfig
++++ b/src/cpu/amd/family_10h-family_15h/Kconfig
+@@ -8,7 +8,6 @@ config CPU_AMD_MODEL_10XXX
+ 	select TSC_SYNC_LFENCE
+ 	select UDELAY_LAPIC
+ 	select SUPPORT_CPU_UCODE_IN_CBFS
+-	select CPU_MICROCODE_MULTIPLE_FILES
+ 	select CAR_GLOBAL_MIGRATION
+ 
+ if CPU_AMD_MODEL_10XXX
+diff --git a/src/cpu/amd/family_10h-family_15h/Makefile.inc b/src/cpu/amd/family_10h-family_15h/Makefile.inc
+index 7035323026..e0029f562d 100644
+--- a/src/cpu/amd/family_10h-family_15h/Makefile.inc
++++ b/src/cpu/amd/family_10h-family_15h/Makefile.inc
+@@ -14,12 +14,4 @@ ramstage-y += ram_calc.c
+ ramstage-y += monotonic_timer.c
+ ramstage-$(CONFIG_HAVE_ACPI_TABLES) += powernow_acpi.c
+ 
+-# Microcode for Family 10h, 11h, 12h, and 14h
+-cbfs-files-$(CONFIG_CPU_MICROCODE_CBFS_DEFAULT_BINS) += microcode_amd.bin
+-microcode_amd.bin-file := 3rdparty/blobs/cpu/amd/family_10h-family_14h/microcode_amd.bin
+-microcode_amd.bin-type := microcode
+-
+-# Microcode for Family 15h
+-cbfs-files-$(CONFIG_CPU_MICROCODE_CBFS_DEFAULT_BINS) += microcode_amd_fam15h.bin
+-microcode_amd_fam15h.bin-file := 3rdparty/blobs/cpu/amd/family_15h/microcode_amd_fam15h.bin
+-microcode_amd_fam15h.bin-type := microcode
++# Microcode deleted in this version of coreboot.
+-- 
+2.25.1
+
diff --git a/resources/coreboot/fam15h_rdimm/patches/0006-asus-kgpe-d16-enable-lc_cache_partitioning-and-exper.patch b/resources/coreboot/fam15h_rdimm/patches/0006-asus-kgpe-d16-enable-lc_cache_partitioning-and-exper.patch
new file mode 100644
index 00000000..5ada0dff
--- /dev/null
+++ b/resources/coreboot/fam15h_rdimm/patches/0006-asus-kgpe-d16-enable-lc_cache_partitioning-and-exper.patch
@@ -0,0 +1,32 @@
+From f0aac7261e16adc8e61eca7a506ff2de5112be47 Mon Sep 17 00:00:00 2001
+From: Leah Rowe <leah@libreboot.org>
+Date: Fri, 7 May 2021 19:43:32 +0100
+Subject: [PATCH 6/6] asus/kgpe-d16: enable lc_cache_partitioning and
+ experimental_memory_speed_boost
+
+This really only benefits 63xx opterons which are less reliable in libreboot due
+to lack of CPU microcode updates, but we might aswell enable this anyway.
+---
+ src/mainboard/asus/kgpe-d16/cmos.default | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/mainboard/asus/kgpe-d16/cmos.default b/src/mainboard/asus/kgpe-d16/cmos.default
+index 7c496a50d7..8a25620e1d 100644
+--- a/src/mainboard/asus/kgpe-d16/cmos.default
++++ b/src/mainboard/asus/kgpe-d16/cmos.default
+@@ -21,10 +21,10 @@ sata_ahci_mode=Enable
+ sata_alpm=Disable
+ maximum_p_state_limit=0xf
+ probe_filter=Auto
+-l3_cache_partitioning=Disable
++l3_cache_partitioning=Enable
+ ieee1394_controller=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
+