Patrick Rudolph has uploaded a new patch set (#10) to the change originally created by Evgeny Zinoviev. ( https://review.coreboot.org/c/coreboot/+/28380 )
Change subject: [WIP] Nvidia Optimus support for ThinkPads ......................................................................
[WIP] Nvidia Optimus support for ThinkPads
Based on siro's work #23041. Tested on ThinkPad W530 and Thinkpad T520.
Adds ACPI code for dGPU power management.
Depends on: https://review.coreboot.org/#/c/coreboot/+/28392 https://review.coreboot.org/#/c/coreboot/+/28393
What works (tested on 4.16.13-gentoo kernel): - power management via _PS0 and _DSM + _PS3 ACPI calls - nouveau driver - bumblebee (from the "develop" branch) - bbswitch - VGA ROM loading
lspci turns on the dGPU, but that is expected, as otherwise it can't access the device's address space.
The Nvidia Optimus driver needs to be enabled by setting CONFIG_NVIDIA_OPTIMUS=y
Known problems: - nvidia driver doens't work: [ 275.244113] NVRM: failed to copy vbios to system memory. [ 275.244345] NVRM: RmInitAdapter failed! (0x30:0xffff:663) [ 275.244433] NVRM: rm_init_adapter failed for device bearing minor number 0 [ 275.347956] NVRM: failed to copy vbios to system memory. [ 275.348140] NVRM: RmInitAdapter failed! (0x30:0xffff:663) [ 275.348163] NVRM: rm_init_adapter failed for device bearing minor number 0 - Random CPU core lockups
Change-Id: I277808d6c1d8bd6e0a267a53f25471597698f8d5 Signed-off-by: Evgeny Zinoviev me@ch1p.com Signed-off-by: Patrick Rudolph siro@das-labor.org --- A src/drivers/nvidia/optimus/acpi/optimus.asl A src/ec/lenovo/pmh7/acpi/optimus_sandy_ivy.asl A src/ec/lenovo/pmh7/acpi/pmh7.asl M src/ec/lenovo/pmh7/pmh7.h M src/mainboard/lenovo/t420/Kconfig M src/mainboard/lenovo/t420/acpi/ec.asl M src/mainboard/lenovo/t420s/Kconfig M src/mainboard/lenovo/t420s/acpi/ec.asl M src/mainboard/lenovo/t430/Kconfig M src/mainboard/lenovo/t430/acpi/ec.asl M src/mainboard/lenovo/t430s/Kconfig M src/mainboard/lenovo/t430s/acpi/ec.asl M src/mainboard/lenovo/t520/Kconfig M src/mainboard/lenovo/t520/acpi/ec.asl M src/mainboard/lenovo/t520/cmos.default M src/mainboard/lenovo/t530/Kconfig M src/mainboard/lenovo/t530/acpi/ec.asl M src/northbridge/intel/sandybridge/acpi/hostbridge.asl M src/northbridge/intel/sandybridge/acpi/peg.asl 19 files changed, 661 insertions(+), 15 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/80/28380/10