5e5e789f9b
This is a port of https://review.coreboot.org/c/coreboot/+/22337 to the Haswell northbridge. This code is necessary to support the dGPU of the t440p. Code was cut and pasted from Sandy Bridge with vendor IDs updated to the correct Haswell values. Tested on t440p with dGPU on Ubuntu 18.04.4 with 5.3.0-28 kernel. Without patches dmesg reports Nouveau is unable to read the VBIOS of the dGPU as it has an invalid checksum (I checked that the ROM in CBFS is correct). With this patch DRM works correctly with both the Nouveau driver and the Nvidia proprietary driver. Windows 10 1909 also tested but generates bluescreen once GPU driver is loaded. Change-Id: Ie5f089fb6fd774e6c61f4f9281e2945bd44edf27 Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38743 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> |
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| .. | ||
| _static | ||
| acpi | ||
| arch | ||
| community | ||
| contributing | ||
| doxygen | ||
| drivers | ||
| flash_tutorial | ||
| getting_started | ||
| gfx | ||
| ifdtool | ||
| Intel | ||
| lib | ||
| mainboard | ||
| northbridge | ||
| releases | ||
| RFC | ||
| security | ||
| soc | ||
| superio | ||
| technotes | ||
| tutorial | ||
| vendorcode | ||
| AMD-S3.txt | ||
| beginverbatim.tex | ||
| cbfs.txt | ||
| codeflow.svg | ||
| coding_style.md | ||
| conf.py | ||
| COPYING | ||
| coreboot_logo.png | ||
| corebootBuildingGuide.tex | ||
| distributions.md | ||
| Doxyfile.coreboot | ||
| Doxyfile.coreboot_simple | ||
| endverbatim.tex | ||
| gcov.txt | ||
| hypertransport.svg | ||
| index.md | ||
| mainboard_io_trap_handler_sample.c | ||
| Makefile | ||
| Makefile.sphinx | ||
| payloads.md | ||
| POSTCODES | ||
| util.md | ||
