Lean Sheng Tan submitted this change.

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Approvals: build bot (Jenkins): Verified Lean Sheng Tan: Looks good to me, approved Nico Huber: Looks good to me, but someone else must approve Shuo Liu: Looks good to me, but someone else must approve
soc/intel/xeon_sp: Allocate resources above 4G

This makes sure that prefetchable mem64 memory gets allocated above 4G
which allows non prefetchable resources to be allocated in the tight
window below 4G.

TEST=intel/archercity CRB

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I27d4f9ce91c12ed4ab3b2f18f2a92b742115d275
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79058
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Shuo Liu <shuo.liu@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
M src/soc/intel/xeon_sp/Kconfig
1 file changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/soc/intel/xeon_sp/Kconfig b/src/soc/intel/xeon_sp/Kconfig
index 63ced01..1eee869 100644
--- a/src/soc/intel/xeon_sp/Kconfig
+++ b/src/soc/intel/xeon_sp/Kconfig
@@ -91,6 +91,9 @@
config ECAM_MMCONF_BUS_NUMBER
default 256

+config ALWAYS_ALLOW_ABOVE_4G_ALLOCATION
+ default y
+
config HEAP_SIZE
hex
default 0x80000

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Gerrit-Project: coreboot
Gerrit-Branch: main
Gerrit-Change-Id: I27d4f9ce91c12ed4ab3b2f18f2a92b742115d275
Gerrit-Change-Number: 79058
Gerrit-PatchSet: 13
Gerrit-Owner: Arthur Heymans <arthur@aheymans.xyz>
Gerrit-Reviewer: Chen, Gang C <gang.c.chen@intel.com>
Gerrit-Reviewer: Christian Walter <christian.walter@9elements.com>
Gerrit-Reviewer: Jincheng Li <jincheng.li@intel.com>
Gerrit-Reviewer: Johnny Lin <Johnny_Lin@wiwynn.com>
Gerrit-Reviewer: Lean Sheng Tan <sheng.tan@9elements.com>
Gerrit-Reviewer: Nico Huber <nico.h@gmx.de>
Gerrit-Reviewer: Shuo Liu <shuo.liu@intel.com>
Gerrit-Reviewer: Tim Chu <Tim.Chu@quantatw.com>
Gerrit-Reviewer: build bot (Jenkins) <no-reply@coreboot.org>
Gerrit-CC: Paul Menzel <paulepanter@mailbox.org>
Gerrit-MessageType: merged