On Mon, Aug 31, 2015 at 12:47 AM, Peio <peio@xxxxxxxxxxx> wrote: > I have a board with an PCI Express-to-PCI Bridge (Texas Instruments > XIO2001). > Attached to the PCI bus, there are 2 FPGA PCI Target devices needing 32MB > memory map each. > The PCI rescan "echo 1 > /sys/bus/pci/rescan" memory assign fails. > > dmesg messages: > [ 150.978654] pci 0000:02:03.0: [4150:0001] type 00 class 0x068000 > [ 150.978684] pci 0000:02:03.0: reg 0x10: [mem 0x00000000-0x01ffffff] > [ 150.978885] pci 0000:02:04.0: [4150:000a] type 00 class 0x078000 > [ 150.978909] pci 0000:02:04.0: reg 0x10: [mem 0x00000000-0x01ffffff] > [ 150.979158] pcieport 0000:00:1c.0: bridge window [mem 0x00100000- > 0x000fffff 64bit pref] to [bus 01-02] add_size 200000 > [ 150.979166] pcieport 0000:00:1c.0: bridge window [mem 0x02000000- > 0x05ffffff] to [bus 01-02] add_size 2000000 > [ 150.979183] pcieport 0000:00:1c.2: bridge window [mem 0x00100000- > 0x000fffff 64bit pref] to [bus 04] add_size 200000 > [ 150.979190] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has > bogus alignment > [ 150.979199] pcieport 0000:00:1c.0: res[14]=[mem 0x02000000-0x05ffffff] > get_res_add_size add_size 2000000 > [ 150.979205] pcieport 0000:00:1c.0: res[15]=[mem 0x00100000-0x000fffff > 64bit pref] get_res_add_size add_size 200000 > [ 150.979211] pcieport 0000:00:1c.2: res[15]=[mem 0x00100000-0x000fffff > 64bit pref] get_res_add_size add_size 200000 > [ 150.979222] pcieport 0000:00:1c.0: BAR 14: can't assign mem (size > 0x6000000) > [ 150.979230] pcieport 0000:00:1c.0: BAR 15: can't assign mem pref (size > 0x200000) > [ 150.979238] pcieport 0000:00:1c.2: BAR 15: can't assign mem pref (size > 0x200000) > [ 150.979245] pcieport 0000:00:1c.0: BAR 14: can't assign mem (size > 0x4000000) > Linux: Ubuntu 14.04 > Kernel: 3.13.0-62-generic how about current upsteam kernel? > Is possible to fix it? Please whole post boot log with "debug ignore_loglevel". Need _CRS from BIOS provide enough MMIO range for 00:1c.0 Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
