On Fri, Oct 9, 2020 at 11:35 PM Ondrej Zary <linux@xxxxxxx> wrote: > > Hello, > I'm testing 5.9.0-rc8 and found that Riva TNT2 stopped working: > [ 0.000000] Linux version 5.9.0-rc8+ (zary@gsql) (gcc (Debian 8.3.0-6) 8.3.0, GNU ld (GNU Binutils for Debian) 2.31.1) #326 SMP Fri Oct 9 22:31:40 CEST 2020 > ... > [ 14.771464] nouveau 0000:01:00.0: GPU not supported on big-endian > [ 14.771782] nouveau: probe of 0000:01:00.0 failed with error -38 > > big-endian? WTF? The machine is x86. > mhh, we reworked the endianess checks a bit and apparently that broke something... I will give it some thoughts, but could you be so kind and create an mmiotrace under 5.9 with nouveau? You won't need to start X or anything while doing it. Just enable the trace and modprobe nouveau and collect the trace. > It works fine with Debian 5.7 kernel (5.7.10-1~bpo10+1): > [ 0.000000] Linux version 5.7.0-0.bpo.2-686 (debian-kernel@xxxxxxxxxxxxxxxx) (gcc version 8.3.0 (Debian 8.3.0-6), GNU ld (GNU Binutils for Debian) 2.31.1) #1 SMP Debian 5.7.10-1~bpo10+1 (2020-07-30) > ... > [ 23.266196] nouveau 0000:01:00.0: NVIDIA NV05 (20154000) > [ 23.288582] nouveau 0000:01:00.0: bios: version 02.05.20.02.00 > [ 23.288869] nouveau 0000:01:00.0: bios: DCB table not found > [ 23.289595] nouveau 0000:01:00.0: bios: DCB table not found > [ 23.289956] nouveau 0000:01:00.0: bios: DCB table not found > [ 23.290015] nouveau 0000:01:00.0: bios: DCB table not found > [ 23.290215] agpgart-intel 0000:00:00.0: AGP 3.0 bridge > [ 23.290287] agpgart-intel 0000:00:00.0: bridge is in legacy mode, falling back to 2.x > [ 23.290351] agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode > [ 23.290430] nouveau 0000:01:00.0: putting AGP V2 device into 4x mode > [ 23.290565] agpgart-intel 0000:00:00.0: AGP 3.0 bridge > [ 23.290627] agpgart-intel 0000:00:00.0: bridge is in legacy mode, falling back to 2.x > [ 23.290690] agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode > [ 23.290768] nouveau 0000:01:00.0: putting AGP V2 device into 4x mode > [ 23.290830] nouveau 0000:01:00.0: tmr: unknown input clock freq > [ 23.293026] nouveau 0000:01:00.0: fb: 32 MiB SDRAM > [ 23.301269] [TTM] Zone kernel: Available graphics memory: 382728 KiB > [ 23.301327] [TTM] Initializing pool allocator > [ 23.301414] nouveau 0000:01:00.0: DRM: VRAM: 31 MiB > [ 23.301465] nouveau 0000:01:00.0: DRM: GART: 128 MiB > [ 23.301518] nouveau 0000:01:00.0: DRM: BMP version 5.6 > [ 23.301570] nouveau 0000:01:00.0: DRM: No DCB data found in VBIOS > [ 23.303594] nouveau 0000:01:00.0: DRM: MM: using M2MF for buffer copies > [ 23.303719] nouveau 0000:01:00.0: bios: DCB table not found > [ 23.304904] nouveau 0000:01:00.0: DRM: Saving VGA fonts > [ 23.349089] nouveau 0000:01:00.0: DRM: No DCB data found in VBIOS > [ 23.349681] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). > [ 23.383066] nouveau 0000:01:00.0: DRM: allocated 1280x1024 fb: 0x4000, bo b10d2f17 > [ 23.413903] fbcon: nouveaudrmfb (fb0) is primary device > [ 23.569851] Console: switching to colour frame buffer device 160x64 > [ 23.571050] nouveau 0000:01:00.0: fb0: nouveaudrmfb frame buffer device > > > -- > Ondrej Zary > _______________________________________________ > Nouveau mailing list > Nouveau@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/nouveau > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
