Hi Ilia Thanks for taking the time to reply.
On Wed, 28 Oct 2020 at 14:10, Ilia Mirkin <imir...@alum.mit.edu> wrote: > > The most common issue on arm is that the pci memory window is too narrow to > allocate all the BARs. Can you see if there are messages in the kernel to > that effect? All the BAR allocations seem to succeed except for the IO one. AIUI I/O is deprecated, but is it still used on these cards? [ 1.060851] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges: [ 1.060892] brcm-pcie fd500000.pcie: No bus range found for /scb/pcie@7d500000, using [bus 00-ff] [ 1.060975] brcm-pcie fd500000.pcie: MEM 0x0600000000..0x063fffffff -> 0x00c0000000 [ 1.061061] brcm-pcie fd500000.pcie: IB MEM 0x0000000000..0x00ffffffff -> 0x0100000000 [ 1.109943] brcm-pcie fd500000.pcie: link up, 5.0 GT/s PCIe x1 (SSC) [ 1.110129] brcm-pcie fd500000.pcie: PCI host bridge to bus 0000:00 [ 1.110159] pci_bus 0000:00: root bus resource [bus 00-ff] [ 1.110187] pci_bus 0000:00: root bus resource [mem 0x600000000-0x63fffffff] (bus address [0xc0000000-0xffffffff]) [ 1.110286] pci 0000:00:00.0: [14e4:2711] type 01 class 0x060400 [ 1.110505] pci 0000:00:00.0: PME# supported from D0 D3hot [ 1.114095] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring [ 1.114343] pci 0000:01:00.0: [10de:128b] type 00 class 0x030000 [ 1.114404] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00ffffff] [ 1.114456] pci 0000:01:00.0: reg 0x14: [mem 0x00000000-0x07ffffff 64bit pref] [ 1.114510] pci 0000:01:00.0: reg 0x1c: [mem 0x00000000-0x01ffffff 64bit pref] [ 1.114551] pci 0000:01:00.0: reg 0x24: [io 0x0000-0x007f] [ 1.114590] pci 0000:01:00.0: reg 0x30: [mem 0x00000000-0x0007ffff pref] [ 1.114853] pci 0000:01:00.0: 4.000 Gb/s available PCIe bandwidth, limited by 5.0 GT/s PCIe x1 link at 0000:00:00.0 (capable of 63.008 Gb/s with 8.0 GT/s PCIe x8 link) [ 1.115022] pci 0000:01:00.0: vgaarb: VGA device added: decodes=io+mem,owns=none,locks=none [ 1.115125] pci 0000:01:00.1: [10de:0e0f] type 00 class 0x040300 [ 1.115184] pci 0000:01:00.1: reg 0x10: [mem 0x00000000-0x00003fff] [ 1.119065] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01 [ 1.119120] pci 0000:00:00.0: BAR 9: assigned [mem 0x600000000-0x60bffffff 64bit pref] [ 1.119151] pci 0000:00:00.0: BAR 8: assigned [mem 0x60c000000-0x60d7fffff] [ 1.119183] pci 0000:01:00.0: BAR 1: assigned [mem 0x600000000-0x607ffffff 64bit pref] [ 1.119235] pci 0000:01:00.0: BAR 3: assigned [mem 0x608000000-0x609ffffff 64bit pref] [ 1.119285] pci 0000:01:00.0: BAR 0: assigned [mem 0x60c000000-0x60cffffff] [ 1.119317] pci 0000:01:00.0: BAR 6: assigned [mem 0x60d000000-0x60d07ffff pref] [ 1.119345] pci 0000:01:00.1: BAR 0: assigned [mem 0x60d080000-0x60d083fff] [ 1.119376] pci 0000:01:00.0: BAR 5: no space for [io size 0x0080] [ 1.119400] pci 0000:01:00.0: BAR 5: failed to assign [io size 0x0080] [ 1.119426] pci 0000:00:00.0: PCI bridge to [bus 01] [ 1.119456] pci 0000:00:00.0: bridge window [mem 0x60c000000-0x60d7fffff] [ 1.119484] pci 0000:00:00.0: bridge window [mem 0x600000000-0x60bffffff 64bit pref] [ 1.119662] pci 0000:01:00.1: D0 power state depends on 0000:01:00.0 Dave > On Wed, Oct 28, 2020, 9:46 AM Dave Stevenson <dave.steven...@raspberrypi.com> > wrote: >> >> Hi >> >> Seeing as we (Raspberry Pi) have just launched the Compute Module 4 >> with an exposed PCIe x1 lane, people are asking about adding graphics >> cards. >> >> Seeing as you are the people who have the knowledge with regard to >> NVidia and nouveau, what are your immediate thoughts of nouveau >> working on ARM/ARM64? Is there a chance of this working? I'm no PCIe >> expert, although I can call on some expertise :-/ >> >> I've tried it so far with a GT710 board [1] and ARM64. It's blowing up >> in the memset of nvkm_instobj_new whilst initialising the BAR >> subdevice [2], having gone through the "No such luck" path in >> nvkm_mmu_ptc_get [3]. >> >> Taking the naive approach of simply removing the memset, I get through >> initialising all the subdevices, but again die in a location I >> currently haven't pinpointed. The last logging messages are: >> [ 1023.407302] nouveau 0000:01:00.0: fifo: one-time init completed in 760us >> [ 1023.407312] nouveau 0000:01:00.0: fifo: init completed in 775us >> [ 1023.407325] nouveau: DRM-master:00000000:80009009: init running... >> [ 1023.407329] nouveau: DRM-master:00000000:80009009: init children... >> [ 1023.407333] nouveau: DRM-master:00000000:80009009: init completed in 4us >> [ 1023.407352] nouveau 0000:01:00.0: fifo: fault 01 [WRITE] at >> 00000000000d1000 engine 05 [BAR2] client 08 [HUB/HOST_CPU_NB] reason >> 02 [PTE] on channel -1 [007fd38000 unknown] >> [ 1023.407354] nouveau: DRM-master:00000000:00000000: ioctl: return 0 >> [ 1023.407385] nouveau: DRM-master:00000000:00000000: ioctl: size 32 >> [ 1023.407392] nouveau: DRM-master:00000000:00000000: ioctl: vers 0 >> type 01 object ffffff80ee8c2170 owner ff >> [ 1023.407415] nouveau: DRM-master:00000000:80009009: ioctl: sclass size 8 >> [ 1023.407419] nouveau: DRM-master:00000000:80009009: ioctl: sclass >> vers 0 count 0 >> [ 1023.407432] nouveau: DRM-master:00000000:00000000: ioctl: return 0 >> [ 1023.407452] nouveau: DRM-master:00000000:00000000: ioctl: size 48 >> [ 1023.407459] nouveau: DRM-master:00000000:00000000: ioctl: vers 0 >> type 01 object ffffff80ee8c2170 owner ff >> [ 1023.407482] nouveau: DRM-master:00000000:80009009: ioctl: sclass size 24 >> [ 1023.407485] nouveau: DRM-master:00000000:80009009: ioctl: sclass >> vers 0 count 2 >> [ 1023.407498] nouveau: DRM-master:00000000:00000000: ioctl: return 0 >> [ 1023.407519] nouveau: DRM-master:00000000:00000000: ioctl: size 48 >> >> Any input very welcome, otherwise I'll continue blundering about >> slightly in the dark. >> >> Thanks >> Dave >> >> [1] >> https://www.amazon.co.uk/ASUS-GT710-4H-SL-2GD5-GeForce-Multi-Monitor-Productivity/dp/B0897T6PYM/ >> [2] >> https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c#L114 >> [3] >> https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c#L201 >> _______________________________________________ >> Nouveau mailing list >> Nouveau@lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/nouveau _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/nouveau
