On Fri, Oct 2, 2015 at 3:37 PM, David Daney <ddaney.cavm@xxxxxxxxx> wrote: > From: David Daney <david.daney@xxxxxxxxxx> > > The new Enhanced Allocation (EA) capability support creates resources > with the IORESOURCE_PCI_FIXED set. This creates a couple of problems: > > 1) Since these resources cannot be relocated or resized, their > alignment is not really defined, and it is therefore not specified. > This causes a problem in pbus_size_mem() where resources with > unspecified alignment are disabled. > > 2) During resource assignment in pci_bus_assign_resources(), > IORESOURCE_PCI_FIXED resources are not given a parent. This, in > turn, causes pci_enable_resources() to fail with a "not claimed" > error. > > So, in pbus_size_mem() skip IORESOURCE_PCI_FIXED resources, instead of > disabling them. > > In __pci_bus_assign_resources(), for IORESOURCE_PCI_FIXED resources, > try to request the resource from a parent bus. Can you check if https://patchwork.kernel.org/patch/7304971/ [v6,05/53] PCI: Don't release fixed resource for realloc https://patchwork.kernel.org/patch/7304371/ [v6,06/53] PCI: Claim fixed resource during remove/rescan path address the the problem that you met? Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
