On 20.08.2025 13:46, Bjorn Helgaas wrote: > [+cc maintainers, regressions list] > > Jan, thanks very much for the report and the bisection. Could you > attach the devicetree you're using to the bugzilla? I guess I could dump it from running system if you'd like me to, but it's an upstream one without any customizations. > On Wed, Aug 20, 2025 at 05:43:39PM +0000, bugzilla-daemon@xxxxxxxxxx wrote: > > https://bugzilla.kernel.org/show_bug.cgi?id=220479 > > > > Summary: [regression 6.16] mvebu: no pci devices detected on > > turris omnia > > Reporter: jpalus@xxxxxxxxxxxx > > > > Booting kernel 6.16 results in no PCI devices being detected (output of `lspci` > > is completely empty). Bisected to: > > > > 5da3d94a23c6c1ee1f896aeeb00965eacf1d0bb3 is the first new commit > > commit 5da3d94a23c6c1ee1f896aeeb00965eacf1d0bb3 (HEAD) > > Author: Rob Herring (Arm) <robh@xxxxxxxxxx> > > Date: Thu Nov 7 16:32:55 2024 > > > > PCI: mvebu: Use for_each_of_range() iterator for parsing "ranges" > > > > The mvebu "ranges" is a bit unusual with its own encoding of addresses, > > but it's still just normal "ranges" as far as parsing is concerned. > > Convert mvebu_get_tgt_attr() to use the for_each_of_range() iterator > > instead of open coding the parsing. > > > > Signed-off-by: Rob Herring (Arm) <robh@xxxxxxxxxx> > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > > Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > > Link: https://patch.msgid.link/20241107153255.2740610-1-robh@xxxxxxxxxx > > > > drivers/pci/controller/pci-mvebu.c | 26 +++++++++----------------- > > 1 file changed, 9 insertions(+), 17 deletions(-) > > > > > > kernel 6.16 logs following mesages related to PCI: > > > > mvebu-pcie soc:pcie: host bridge /soc/pcie ranges: > > mvebu-pcie soc:pcie: MEM 0x00f1080000..0x00f1081fff -> 0x0000080000 > > mvebu-pcie soc:pcie: MEM 0x00f1040000..0x00f1041fff -> 0x0000040000 > > mvebu-pcie soc:pcie: MEM 0x00f1044000..0x00f1045fff -> 0x0000044000 > > mvebu-pcie soc:pcie: MEM 0x00f1048000..0x00f1049fff -> 0x0000048000 > > mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0100000000 > > mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0100000000 > > mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0200000000 > > mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0200000000 > > mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0300000000 > > mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0300000000 > > mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0400000000 > > mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0400000000 > > mvebu-pcie soc:pcie: pcie0.0: cannot get tgt/attr for mem window > > mvebu-pcie soc:pcie: pcie1.0: cannot get tgt/attr for mem window > > mvebu-pcie soc:pcie: pcie2.0: cannot get tgt/attr for mem window > > mvebu-pcie soc:pcie: PCI host bridge to bus 0000:00 > > pci_bus 0000:00: root bus resource [bus 00-ff] > > pci_bus 0000:00: root bus resource [mem 0xf1080000-0xf1081fff] (bus address > > [0x00080000-0x00081fff]) > > pci_bus 0000:00: root bus resource [mem 0xf1040000-0xf1041fff] (bus address > > [0x00040000-0x00041fff]) > > pci_bus 0000:00: root bus resource [mem 0xf1044000-0xf1045fff] (bus address > > [0x00044000-0x00045fff]) > > pci_bus 0000:00: root bus resource [mem 0xf1048000-0xf1049fff] (bus address > > [0x00048000-0x00049fff]) > > pci_bus 0000:00: root bus resource [mem 0xe0000000-0xe7ffffff] > > pci_bus 0000:00: root bus resource [io 0x1000-0xeffff] > > PCI: bus0: Fast back to back transfers enabled > > pci_bus 0000:00: resource 4 [mem 0xf1080000-0xf1081fff] > > pci_bus 0000:00: resource 5 [mem 0xf1040000-0xf1041fff] > > pci_bus 0000:00: resource 6 [mem 0xf1044000-0xf1045fff] > > pci_bus 0000:00: resource 7 [mem 0xf1048000-0xf1049fff] > > pci_bus 0000:00: resource 8 [mem 0xe0000000-0xe7ffffff] > > pci_bus 0000:00: resource 9 [io 0x1000-0xeffff] > > > > > > while kernel 6.15 logs following: > > > > mvebu-pcie soc:pcie: host bridge /soc/pcie ranges: > > mvebu-pcie soc:pcie: MEM 0x00f1080000..0x00f1081fff -> 0x0000080000 > > mvebu-pcie soc:pcie: MEM 0x00f1040000..0x00f1041fff -> 0x0000040000 > > mvebu-pcie soc:pcie: MEM 0x00f1044000..0x00f1045fff -> 0x0000044000 > > mvebu-pcie soc:pcie: MEM 0x00f1048000..0x00f1049fff -> 0x0000048000 > > mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0100000000 > > mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0100000000 > > mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0200000000 > > mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0200000000 > > mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0300000000 > > mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0300000000 > > mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0400000000 > > mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0400000000 > > mvebu-pcie soc:pcie: pcie0.0: Slot power limit 10.0W > > mvebu-pcie soc:pcie: pcie1.0: Slot power limit 10.0W > > mvebu-pcie soc:pcie: pcie2.0: Slot power limit 10.0W > > mvebu-pcie soc:pcie: PCI host bridge to bus 0000:00 > > pci_bus 0000:00: root bus resource [bus 00-ff] > > pci_bus 0000:00: root bus resource [mem 0xf1080000-0xf1081fff] (bus address > > [0x00080000-0x00081fff]) > > pci_bus 0000:00: root bus resource [mem 0xf1040000-0xf1041fff] (bus address > > [0x00040000-0x00041fff]) > > pci_bus 0000:00: root bus resource [mem 0xf1044000-0xf1045fff] (bus address > > [0x00044000-0x00045fff]) > > pci_bus 0000:00: root bus resource [mem 0xf1048000-0xf1049fff] (bus address > > [0x00048000-0x00049fff]) > > pci_bus 0000:00: root bus resource [mem 0xe0000000-0xe7ffffff] > > pci_bus 0000:00: root bus resource [io 0x1000-0xeffff] > > pci 0000:00:01.0: [11ab:6820] type 01 class 0x060400 PCIe Root Port > > pci 0000:00:01.0: PCI bridge to [bus 00] > > pci 0000:00:01.0: bridge window [io 0x0000-0x0fff] > > pci 0000:00:01.0: bridge window [mem 0x00000000-0x000fffff] > > /soc/pcie/pcie@1,0: Fixed dependency cycle(s) with > > /soc/pcie/pcie@1,0/interrupt-controller > > pci 0000:00:02.0: [11ab:6820] type 01 class 0x060400 PCIe Root Port > > pci 0000:00:02.0: PCI bridge to [bus 00] > > pci 0000:00:02.0: bridge window [io 0x0000-0x0fff] > > pci 0000:00:02.0: bridge window [mem 0x00000000-0x000fffff] > > /soc/pcie/pcie@2,0: Fixed dependency cycle(s) with > > /soc/pcie/pcie@2,0/interrupt-controller > > pci 0000:00:03.0: [11ab:6820] type 01 class 0x060400 PCIe Root Port > > pci 0000:00:03.0: PCI bridge to [bus 00] > > pci 0000:00:03.0: bridge window [io 0x0000-0x0fff] > > pci 0000:00:03.0: bridge window [mem 0x00000000-0x000fffff] > > /soc/pcie/pcie@3,0: Fixed dependency cycle(s) with > > /soc/pcie/pcie@3,0/interrupt-controller > > PCI: bus0: Fast back to back transfers disabled > > pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring > > pci 0000:00:02.0: bridge configuration invalid ([bus 00-00]), reconfiguring > > pci 0000:00:03.0: bridge configuration invalid ([bus 00-00]), reconfiguring > > PCI: bus1: Fast back to back transfers enabled > > pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01 > > pci 0000:02:00.0: [168c:003c] type 00 class 0x028000 PCIe Endpoint > > pci 0000:02:00.0: BAR 0 [mem 0x00000000-0x001fffff 64bit] > > pci 0000:02:00.0: ROM [mem 0x00000000-0x0000ffff pref] > > pci 0000:02:00.0: supports D1 > > pci 0000:02:00.0: PME# supported from D0 D1 D3hot > > pci 0000:00:02.0: ASPM: current common clock configuration is inconsistent, > > reconfiguring > > pci 0000:00:02.0: ASPM: Bridge does not support changing Link Speed to 2.5 GT/s > > pci 0000:00:02.0: ASPM: Retrain Link at higher speed is disallowed by quirk > > PCI: bus2: Fast back to back transfers disabled > > pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02 > > pci 0000:03:00.0: [168c:0033] type 00 class 0x028000 PCIe Endpoint > > pci 0000:03:00.0: BAR 0 [mem 0x00000000-0x0001ffff 64bit] > > pci 0000:03:00.0: ROM [mem 0x00000000-0x0000ffff pref] > > pci 0000:03:00.0: supports D1 > > pci 0000:03:00.0: PME# supported from D0 D1 D3hot > > pci 0000:00:03.0: ASPM: current common clock configuration is inconsistent, > > reconfiguring > > pci 0000:00:03.0: ASPM: Bridge does not support changing Link Speed to 2.5 GT/s > > pci 0000:00:03.0: ASPM: Retrain Link at higher speed is disallowed by quirk > > PCI: bus3: Fast back to back transfers disabled > > pci_bus 0000:03: busn_res: [bus 03-ff] end is updated to 03 > > pci 0000:00:02.0: bridge window [mem 0x00200000-0x003fffff] to [bus 02] > > add_size 200000 add_align 200000 > > pci 0000:00:02.0: bridge window [mem 0xe0000000-0xe03fffff]: assigned > > pci 0000:00:03.0: bridge window [mem 0xe0400000-0xe04fffff]: assigned > > pci 0000:00:01.0: PCI bridge to [bus 01] > > pci 0000:02:00.0: BAR 0 [mem 0xe0000000-0xe01fffff 64bit]: assigned > > pci 0000:02:00.0: ROM [mem 0xe0200000-0xe020ffff pref]: assigned > > pci 0000:00:02.0: PCI bridge to [bus 02] > > pci 0000:00:02.0: bridge window [mem 0xe0000000-0xe03fffff] > > pci 0000:03:00.0: BAR 0 [mem 0xe0400000-0xe041ffff 64bit]: assigned > > pci 0000:03:00.0: ROM [mem 0xe0420000-0xe042ffff pref]: assigned > > pci 0000:00:03.0: PCI bridge to [bus 03] > > pci 0000:00:03.0: bridge window [mem 0xe0400000-0xe04fffff] > > pci_bus 0000:00: resource 4 [mem 0xf1080000-0xf1081fff] > > pci_bus 0000:00: resource 5 [mem 0xf1040000-0xf1041fff] > > pci_bus 0000:00: resource 6 [mem 0xf1044000-0xf1045fff] > > pci_bus 0000:00: resource 7 [mem 0xf1048000-0xf1049fff] > > pci_bus 0000:00: resource 8 [mem 0xe0000000-0xe7ffffff] > > pci_bus 0000:00: resource 9 [io 0x1000-0xeffff] > > pci_bus 0000:02: resource 1 [mem 0xe0000000-0xe03fffff] > > pci_bus 0000:03: resource 1 [mem 0xe0400000-0xe04fffff] > > pcieport 0000:00:02.0: enabling device (0140 -> 0142) > > pcieport 0000:00:03.0: enabling device (0140 -> 0142) > > #regzbot introduced: 5da3d94a23c6 ("PCI: mvebu: Use for_each_of_range() iterator for parsing "ranges"")
