[XS] Change in coreboot[main]: device/Kconfig: Make option to allocate above 4G appear in Kconfig

[Alicja Michalska (Code Review)]

Attention is currently required from: Alicja Michalska, Arthur Heymans, Christian Walter, David Hendricks, Felix Held, Intel coreboot Reviewers, Johnny Lin, Jonathan Zhang, Patrick Rudolph, Shuo Liu, Tim Chu, Vasiliy Khoruzhick, [e-mail].

Hello Angel Pons, Arthur Heymans, Christian Walter, David Hendricks, Felix Held, Intel coreboot Reviewers, Johnny Lin, Jonathan Zhang, Matt DeVillier, Patrick Rudolph, Shuo Liu, Tim Chu, Vasiliy Khoruzhick, build bot (Jenkins), [e-mail],

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/86131?usp=email

to look at the new patch set (#10).

The following approvals got outdated and were removed:
Code-Review+1 by Shuo Liu, Verified+1 by build bot (Jenkins)

Change subject: device/Kconfig: Make option to allocate above 4G appear in Kconfig
......................................................................

device/Kconfig: Make option to allocate above 4G appear in Kconfig

Previously only tested on server platforms - it wasn't working correctly
on consumer platforms due to missing boolean.

This patch fixes it, which makes resource allocator use uint64 instead
of uint32. Thanks to that, modern GPUs like Intel Arc or Radeon RX now
work correctly with ReBAR enabled, and correctly initialize the
framebuffer in payload (i.e EDK2) after initializing the OpROMs.

Example of issue caused by resource allocator using uint32 (Intel Arc
A580):
[ERROR]  Resource didn't fit!!!
[ERROR]  PCI: 00:01:00.0 10 prefmem64 size: 0x0000800000 not assigned
[ERROR]  PCI: 00:03:00.0 18 prefmem64 size: 0x0200000000 not assigned

(Followed by Linux reporting that BAR space was limited to 256MB, which
severely hindered the performance).

TESTed on Intel TigerLake-H (mb/erying/tgl) with Intel Arc A580 and AMD
Radeon RX7800XT.

Change-Id: Ia17b3312016409d8fd6bcce4321481a7b7e35ce5
Signed-off-by: Alicja Michalska 
---
M src/device/Kconfig
1 file changed, 5 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/31/86131/10