Messages in this thread | | | Date | Fri, 2 Oct 2015 16:14:08 -0700 | Subject | Re: [PATCH v4 3/5] PCI: Handle IORESOURCE_PCI_FIXED when sizing and assigning resources. | From | Yinghai Lu <> |
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On Fri, Oct 2, 2015 at 3:37 PM, David Daney <ddaney.cavm@gmail.com> wrote: > From: David Daney <david.daney@cavium.com> > > 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
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