Re: [PATCH 24/25] PCI: Perform reset_resource() and build fail list in sync

[Ilpo Järvinen]

On Fri, 11 Apr 2025, Ondřej Jirman wrote:

> Hello Ilpo,
> 
> On Tue, Apr 01, 2025 at 08:38:48PM +0300, Ilpo Järvinen wrote:
> > That log wasn't taken from a bad case but it doesn't matter anymore as I 
> > could test this with qemu myself, thanks for providing enough to make it 
> > easy to reproduce & test it locally :-).
> > 
> > The problem is caused by assign+release cycle being destructive on start 
> > aligned resources because successful assigment overwrites the start field. 
> > I'll send a patch to fix the problem once I've given it a bit more thought
> > as this resource fitting code is somewhat complex.
> 
> BTW, same thing here on a different SoC:
> 
> https://lore.kernel.org/lkml/hrcsm2bo4ysqj2ggejndlou32cdc7yiknnm5nrlcoz4d64wall@7te4dfqsoe3y/T/#u
> 
> There are kernel logs there, too, although I don't have dynamic debug enabled
> in the kernel.
> 
> Interestingly, bisect pointed me initially to a different commit. Reverting
> it helped, but just on one board (QuartzPro64).

Hi,

Since you didn't mention it, I guess you haven't tried the fix:

https://patchwork.kernel.org/project/linux-pci/patch/20250403093137.1481-1-ilpo.jarvinen@xxxxxxxxxxxxxxx/

-- 
 i.

> And this is iomem:
> 
> 0010f000-0010f0ff : 10f000.sram sram@10f000
> 00200000-e2bbffff : System RAM
>   02010000-0474ffff : Kernel code
>   04750000-0498ffff : reserved
>   04990000-0508ffff : Kernel data
>   daa00000-e29fffff : reserved
> e2bc0000-ecbbffff : reserved
>   e2bc0000-ecbbffff : reserved
> ecbc0000-efffffff : System RAM
>   ecbc7000-ecbdffff : reserved
> f0000000-f00fffff : a40000000.pcie config
> f0200000-f0ffffff : pcie@fe150000
>   f0200000-f020ffff : 0000:00:00.0
>   f0300000-f03fffff : PCI Bus 0000:01
>     f0300000-f0303fff : 0000:01:00.0
>       f0300000-f0303fff : nvme
>     f0304000-f03040ff : 0000:01:00.0
>       f0304000-f03040ff : nvme
> f2000000-f20fffff : a40800000.pcie config
> f2200000-f2ffffff : pcie@fe170000
>   f2200000-f27fffff : PCI Bus 0002:21
>     f2200000-f220ffff : 0002:21:00.0
>     f2400000-f27fffff : 0002:21:00.0
>   f2800000-f280ffff : 0002:20:00.0
> f3000000-f30fffff : a40c00000.pcie config
> f3200000-f3ffffff : pcie@fe180000
>   f3200000-f320ffff : 0003:30:00.0
>   f3300000-f33fffff : PCI Bus 0003:31
>     f3300000-f3303fff : 0003:31:00.0
>     f3304000-f3304fff : 0003:31:00.0
>       f3304000-f3304fff : r8169
> fb000000-fb1fffff : fb000000.gpu gpu@fb000000
> fc00c100-fc3fffff : fc000000.usb usb@fc000000
> fc400000-fc407fff : usb@fc400000
>   fc400000-fc407fff : xhci-hcd.10.auto usb@fc400000
> fc40c100-fc7fffff : fc400000.usb usb@fc400000
> fc800000-fc83ffff : fc800000.usb usb@fc800000
> fc840000-fc87ffff : fc840000.usb usb@fc840000
> fc880000-fc8bffff : fc880000.usb usb@fc880000
> fc8c0000-fc8fffff : fc8c0000.usb usb@fc8c0000
> fc900000-fc900dff : fc900000.iommu
> fc910000-fc910dff : fc900000.iommu
> fd600000-fd6fffff : fd600000.sram sram@fd600000
> fd8a0000-fd8a00ff : fd8a0000.gpio gpio@fd8a0000
> fdb50000-fdb507ff : fdb50000.video-codec video-codec@fdb50000
> fdb50800-fdb5083f : fdb50800.iommu iommu@fdb50800
> fdb80000-fdb8017f : fdb80000.rga rga@fdb80000
> fdba0000-fdba07ff : fdba0000.video-codec video-codec@fdba0000
> fdba0800-fdba083f : fdba0800.iommu iommu@fdba0800
> fdba4800-fdba483f : fdba4800.iommu iommu@fdba4800
> fdba8800-fdba883f : fdba8800.iommu iommu@fdba8800
> fdbac800-fdbac83f : fdbac800.iommu iommu@fdbac800
> fdc70000-fdc707ff : fdc70000.video-codec video-codec@fdc70000
> fdd90000-fdd941ff : fdd90000.vop vop
> fdd95000-fdd95fff : fdd90000.vop gamma-lut
> fdd97e00-fdd97eff : fdd97e00.iommu iommu@fdd97e00
> fdd97f00-fdd97fff : fdd97e00.iommu iommu@fdd97e00
> fddf0000-fddf0fff : fddf0000.i2s i2s@fddf0000
> fddf4000-fddf4fff : fddf4000.i2s i2s@fddf4000
> fde80000-fde9ffff : fde80000.hdmi hdmi@fde80000
> fdea0000-fdebffff : fdea0000.hdmi hdmi@fdea0000
> fdee0000-fdee5fff : fdee0000.hdmi_receiver hdmi_receiver@fdee0000
> fe060000-fe06ffff : fe060000.dfi dfi@fe060000
> fe150000-fe15ffff : a40000000.pcie apb
> fe170000-fe17ffff : a40800000.pcie apb
> fe180000-fe18ffff : a40c00000.pcie apb
> fe1b0000-fe1bffff : fe1b0000.ethernet ethernet@fe1b0000
> fe210000-fe210fff : fe210000.sata sata@fe210000
> fe2c0000-fe2c3fff : fe2c0000.mmc mmc@fe2c0000
> fe2e0000-fe2effff : fe2e0000.mmc mmc@fe2e0000
> fe470000-fe470fff : fe470000.i2s i2s@fe470000
> fe600000-fe60ffff : GICD
> fe680000-fe77ffff : GICR
> fea10000-fea13fff : dma-controller@fea10000
>   fea10000-fea13fff : fea10000.dma-controller dma-controller@fea10000
> fea30000-fea33fff : dma-controller@fea30000
>   fea30000-fea33fff : fea30000.dma-controller dma-controller@fea30000
> feaa0000-feaa0fff : feaa0000.i2c i2c@feaa0000
> feaf0000-feaf00ff : feaf0000.watchdog watchdog@feaf0000
> feb20000-feb20fff : feb20000.spi spi@feb20000
> feb50000-feb500ff : serial
> fec00000-fec003ff : fec00000.tsadc tsadc@fec00000
> fec10000-fec1ffff : fec10000.adc adc@fec10000
> fec20000-fec200ff : fec20000.gpio gpio@fec20000
> fec30000-fec300ff : fec30000.gpio gpio@fec30000
> fec40000-fec400ff : fec40000.gpio gpio@fec40000
> fec50000-fec500ff : fec50000.gpio gpio@fec50000
> fec90000-fec90fff : fec90000.i2c i2c@fec90000
> fed10000-fed13fff : dma-controller@fed10000
>   fed10000-fed13fff : fed10000.dma-controller dma-controller@fed10000
> fed60000-fed61fff : fed60000.phy phy@fed60000
> fed70000-fed71fff : fed70000.phy phy@fed70000
> fed80000-fed8ffff : fed80000.phy phy@fed80000
> fed90000-fed9ffff : fed90000.phy phy@fed90000
> fee00000-fee000ff : fee00000.phy phy@fee00000
> fee10000-fee100ff : fee10000.phy phy@fee10000
> fee20000-fee200ff : fee20000.phy phy@fee20000
> fee80000-fee9ffff : fee80000.phy phy@fee80000
> ff001000-ff0effff : ff001000.sram sram@ff001000
> 100000000-3fbffffff : System RAM
>   3ec000000-3fbffffff : reserved
> 3fc500000-3ffefffff : System RAM
> 4f0000000-4ffffffff : System RAM
>   4fc611000-4fc6d0fff : reserved
>   4fc6d1000-4fded1fff : reserved
>   4fded2000-4fdf91fff : reserved
>   4fdf93000-4fdf96fff : reserved
>   4fdf97000-4fdfabfff : reserved
>   4fdfac000-4fe051fff : reserved
>   4fe052000-4ffffffff : reserved
> 900000000-93fffffff : pcie@fe150000
>   900000000-93fffffff : 0000:00:00.0
> 980000000-9bfffffff : pcie@fe170000
> 9c0000000-9ffffffff : pcie@fe180000
> a40000000-a403fffff : a40000000.pcie dbi
> a40800000-a40bfffff : a40800000.pcie dbi
> a40c00000-a40ffffff : a40c00000.pcie dbi
> 
> Thank you,
> 	o.
> 
> > -- 
> >  i.
>