[coreboot-gerrit] Change in coreboot[master]: soc/intel/broadwell: add support for Intel GMA OpRegion

[Matt DeVillier (Code Review)]

Hello Prabal Saha, build bot (Jenkins), 

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

    https://review.coreboot.org/25094

to look at the new patch set (#3).

Change subject: soc/intel/broadwell: add support for Intel GMA OpRegion
......................................................................

soc/intel/broadwell: add support for Intel GMA OpRegion

Add global/ACPI nvs variables required for IGD OpRegion.
Add functions necessary to generate ACPI OpRegion, save the
table address in ASLB, and restore table address upon S3 resume.

Implementation largely based on existing Haswell/Lynxpoint code.

Test: boot Windows 10 on google/lulu with Tianocore payload and
GOP display init, observe display driver loaded and functional,
display not black screen when resuming from S3 suspend.

Change-Id: I024f4f0784df3cbbb9977692e9ef0ff9c3552725
Signed-off-by: CoolStar <coolstarorganization at gmail.com>
Signed-off-by: Matt DeVillier <matt.devillier at gmail.com>
---
M src/soc/intel/broadwell/Kconfig
M src/soc/intel/broadwell/acpi/globalnvs.asl
M src/soc/intel/broadwell/igd.c
M src/soc/intel/broadwell/include/soc/nvs.h
4 files changed, 124 insertions(+), 1 deletion(-)


  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/25094/3
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I024f4f0784df3cbbb9977692e9ef0ff9c3552725
Gerrit-Change-Number: 25094
Gerrit-PatchSet: 3
Gerrit-Owner: Matt DeVillier <matt.devillier at gmail.com>
Gerrit-Reviewer: Prabal Saha <coolstarorganization at gmail.com>
Gerrit-Reviewer: build bot (Jenkins) <no-reply at coreboot.org>
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