[PATCH v12 10/12] PCI: Assign unassigned bus resources in pci_scan_root_bus()
From: Liviu Dudau <hidden>
Date: 2014-09-24 01:22:27
Also in:
linux-arch, linux-devicetree, linux-pci, lkml
On Tue, Sep 23, 2014 at 08:01:12PM +0100, Liviu Dudau wrote:
quoted hunk ↗ jump to hunk
If the firmware has not assigned all the bus resources and we are not just probing the PCIe busses, it makes sense to assign the unassigned resources in pci_scan_root_bus(). Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Jason Gunthorpe <redacted> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> --- drivers/pci/probe.c | 3 +++ 1 file changed, 3 insertions(+)diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index ef891d2..508cf61 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c@@ -1953,6 +1953,9 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus, if (!found) pci_bus_update_busn_res_end(b, max); + if (!pci_has_flag(PCI_PROBE_ONLY)) + pci_assign_unassigned_bus_resources(b); + pci_bus_add_devices(b); return b; }-- 2.1.0
Bjorn, If you are OK with this patch, can you let me know how do you feel about making pci_scan_root_bus() set up the bus->msi pointer as well? Side note: I don't know exactly how to do it now, but setting bus->msi is needed by platforms that are based on my patches and want to use MSI, otherwise they have to open code pci_scan_root_bus() to set it. I haven't made any attempts to do it in this series as the GICv2m patches are not ready yet, but I can see the need arriving soon. Best regards, Liviu
-- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
--
-------------------
.oooO
( )
\ ( Oooo.
\_) ( )
) /
(_/
One small step
for me ...