linux-kernel - Re: REGRESSION: v5.13-rc1 does not boot because of "of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses"

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Message-ID: <YMyjl4RHlsg9puj0@m4>
Date:   Fri, 18 Jun 2021 15:45:59 +0200
From:   Domenico Andreoli <domenico.andreoli@...ux.com>
To:     Leonardo Br?s <leobras.c@...il.com>
Cc:     Rob Herring <robh@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: REGRESSION: v5.13-rc1 does not boot because of "of/pci: Add
 IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses"

On Fri, Jun 18, 2021 at 10:17:39AM -0300, Leonardo Br?s wrote:
> Hello Domenico,

Hi,

> 
> If I got that correctly, my patche exposes an issue with host bridge
> windows.??
> 
> There is already a patch approved that should fix the issue:
> http://patchwork.ozlabs.org/project/linux-pci/patch/20210614230457.752811-1-punitagrawal@gmail.com/

Yes, that also (alone on top of v5.13-rc6) restores my boot.

> 
> Please check if it fixes the issue for you (also, if possible give
> feedback in the patch thread). 

I will. Thanks!

Dom

> 
> Best regards,
> Leonardo Bras
> 
> On Fri, 2021-06-18 at 14:36 +0200, Domenico Andreoli wrote:
> > Hi Leonardo,
> > 
> > Since v5.13-rc1 my NanoPI M4 (arm64 with pcie-attached nvme) does not
> > boot any more.
> > 
> > I could bisect it down to your commit
> > 9d57e61bf72336e13e4cd3c31e93ab26266296a8, just
> > reverting it from v5.13-rc6 makes the boot happen again.
> > 
> > The .dts file I use is arch/arm64/boot/dts/rockchip/rk3399-nanopi-
> > m4v2.dts.
> > 
> > This is the output of lspci -vv:
> > 
> > 00:00.0 PCI bridge: Fuzhou Rockchip Electronics Co., Ltd RK3399 PCI
> > Express Root Port (prog-if 00 [Normal decode])
> > ????????????????Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> > ParErr- Stepping- SERR- FastB2B- DisINTx+
> > ????????????????Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> > <TAbort- <MAbort- >SERR- <PERR- INTx-
> > ????????????????Latency: 0
> > ????????????????Interrupt: pin A routed to IRQ 90
> > ????????????????Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> > ????????????????I/O behind bridge: 00000000-00000fff [size=4K]
> > ????????????????Memory behind bridge: fa000000-fa0fffff [size=1M]
> > ????????????????Prefetchable memory behind bridge: 00000000-000fffff [size=1M]
> > ????????????????Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
> > <TAbort- <MAbort- <SERR- <PERR-
> > ????????????????BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset-
> > FastB2B-
> > ????????????????????????????????PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
> > ????????????????Capabilities: <access denied>
> > ????????????????Kernel driver in use: pcieport
> > 
> > 01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe
> > SSD Controller SM981/PM981/PM983 (prog-if 02 [NVM Express])
> > ????????????????Subsystem: Samsung Electronics Co Ltd NVMe SSD Controller
> > SM981/PM981/PM983
> > ????????????????Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> > ParErr- Stepping- SERR- FastB2B- DisINTx+
> > ????????????????Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> > <TAbort- <MAbort- >SERR- <PERR- INTx-
> > ????????????????Latency: 0
> > ????????????????Interrupt: pin A routed to IRQ 89
> > ????????????????NUMA node: 0
> > ????????????????Region 0: Memory at fa000000 (64-bit, non-prefetchable)
> > [size=16K]
> > ????????????????Capabilities: <access denied>
> > ????????????????Kernel driver in use: nvme
> > ????????????????Kernel modules: nvme
> > 
> > Is there anything I can do to help you understanding why this is
> > happening?
> > 
> > I apologize for not having bisected it earlier.
> > 
> > Kind regards,
> > Domenico
> > 
> 

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