Regression: 442ec4c04d1: PCI: dwc: all: Split struct pcie_port into host-only and core structures

[Peter Senna Tschudin]

On Mon, May 08, 2017 at 06:48:48PM +0200, Lucas Stach wrote:
> Am Montag, den 08.05.2017, 18:44 +0200 schrieb Peter Senna Tschudin:
> > On Mon, May 08, 2017 at 06:34:08PM +0200, Lucas Stach wrote:
> > > Am Montag, den 08.05.2017, 17:02 +0200 schrieb Peter Senna Tschudin:
> > > > Hello Kishon,
> > > > 
> > > > Our iMX6 hardware (imx6q-b850v3.dts) is not booting with latest
> > > > linux-next and I could bisect until:
> > > > 
> > > > commit 442ec4c04d1235f8c664a74004dae54a7a574d18
> > > > Author: Kishon Vijay Abraham I <kishon at ti.com>
> > > > Date:   Wed Feb 15 18:48:14 2017 +0530
> > > > 
> > > >     PCI: dwc: all: Split struct pcie_port into host-only and core structures
> > > > 
> > > > Which seem to be causing our issues. Our device (imx6q-b850v3.dts) boots
> > > > fine with 4.10, and also boots if we disable pcie with:
> > > 
> > > Are you sure about this bisect? It seems more likely that the secondary
> > > bus scanning goes wrong. It seems Lorenzo Pieralisi's cfg space
> > > non-posting patches landed in next, so the root cause of this might just
> > > be the driver hooking the wrong fault code now.
> > > 
> > > Async and synchronous aborts are different fault codes on ARM. Can you
> > > see of removing the "16 +" in hook_fault_code() in
> > > drivers/pci/dwc/pci-imx6.c fixes this issue?
> > 
> > changing it to:
> > 
> > hook_fault_code(6, imx6q_pcie_abort_handler, SIGBUS, 0,
> > 		"imprecise external abort");
> > 
> > made no difference, problem persists...
> 
> Can you test if 8 or 10 works?

Also fails with 8 and with 10...
> 
> Regards,
> Lucas
> 
>