> > This is a followup on the thread https://lkml.org/lkml/2015/10/7/135 and > > corresponding https://bugzilla.kernel.org/show_bug.cgi?id=117191 entry. > > > > I saw some sparc64 PCI allocation changes in yesterdays git and compiled > > 4.16.0-10242-gf605ba9 on most of my sparc64 machines to test if the PCI > > BAR allocation problems introduced in 4.3 were fixed on some of them. > > Alas, no change at all - of the test machines, none showed any changes > > in the error messages in "dmesg | grep BAR". > > > > There was one test machine, T1000 with no addon cards, that did not > > encounter any problem, before or after the recent patch. All the other > > test machines tried still have the BAR allocation problems. > > > > The errors seem to cluster into 3 categories: > > > > 1. many devices fail BAR allocations > > 2. one of the Davicom Ethernet devices fails BAR allocation > > 3. Uli ISA bridge fails BAR allocation. > > > > Full current dmesg and lspci info is also available if there is any > > interest. I did not include it all here, which machines are interesting? > > Hi Meelis, > > Fixes for the worst of these issues are in v4.18-rc1. Thank you! > I think there are still cases where we will complain about conflicts. > Some of these look like they result from OF/DT descriptions that > contain conflicts, and they may not cause a problem other than the > message itself. Video RAM area related BAR messages are gone from all servers. V100 OK V120 OK Netra X1 OK Netra T1-200 OK Netra T1-105 OK T2000 still has "no compatible bridge window" about ULi ISA Bridge: [ 3.767832] pci 0001:05:02.0: can't claim BAR 0 [io 0xf010000000-0xf01000ffff]: no compatible bridge window V245 still has "no compatible bridge window" about ULI ISA Bridge: [ 4.522892] pci 0000:05:1e.0: can't claim BAR 0 [io 0x7f810000000-0x7f810000fff]: no compatible bridge window ULi PMU resource conflict still present on these servers: V210 V240 V440 Blade 100 On Blade 100 it is different than the newer V*: [ 9.100363] pci 0000:00:07.0: can't claim BAR 0 [io 0x1fe02000000-0x1fe0200ffff]: address conflict with 0000:00:03.0 [io 0x1fe02000600-0x1fe0200061f] 00:03.0 Non-VGA unclassified device: ULi Electronics Inc. M7101 Power Management Controller [PMU] 00:07.0 ISA bridge: ULi Electronics Inc. M1533/M1535/M1543 PCI to ISA Bridge [Aladdin IV/V/V+] Additionally, ULi ISA Bridge self-conflict still present - is that because it was already reserved by the OF? On these machines: V210 V240 V440 -- Meelis Roos (mroos@xxxxxxxx)
