https://bugs.freedesktop.org/show_bug.cgi?id=91319
Bug ID: 91319 Summary: Nouveau driver cannot extract FCODE ROM / DCB Block from OpenFirmware Device tree Product: xorg Version: unspecified Hardware: PowerPC OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: Driver/nouveau Assignee: nouveau@lists.freedesktop.org Reporter: psaisa...@gmail.com QA Contact: xorg-t...@lists.x.org Created attachment 117079 --> https://bugs.freedesktop.org/attachment.cgi?id=117079&action=edit kernel dmesg log & NVDA,BMP FCODE ROM Hi, When running a Powermac 11.2, (G5 Quad - powerpc64) with a Quadro FX4500 (NV47), previous kernels had no issue extracting the FCODE ROM / DCB block via the OpenFirmware device tree. Last vanilla kernel that i have compiled that seemed to work fine was kernel 3.18.16. Normally, it will find the "BIT SIGNATURE" via OpenFirmware method. However, when compiling a newer vanilla kernel 4.1.2, nouveau seems to have an issue reading the FCODE ROM / DCB block / from the OpenFirmware device tree. Also, interestingly, this time around it attempts to use the PROM method and attempts to find the "BIT SIGNATURE" via this method. Apparently it found a signature, but looks like garbage and seems like it cant extract the DCB BLOCK. As instructed, i have attached a dmesg.log along with a dump of the NVDA,BMP image out of the following folder: /sys/firmware/devicetree/base/pci@0,f0000000/NVDA,Parent@0/. Not sure if this is correct, but i have passed the following nouveau module options as i understood: options nouveau config="NvMSI=0,debug=debug,VBIOS=trace" I have placed the kernel dmesg log along with the NVDA,BMP dump in the attached nouveau_powerpc64_pmac11.2.tar.xz archive. Please let me know if there is any more info required. Thanks for your help! Best Regards, Peter -- You are receiving this mail because: You are the assignee for the bug.
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