From: Christoph Hellwig <hch@lst.de>
To: Mike Rapoport <rppt@linux.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>,
Christian Zigotzky <chzigotzky@xenosoft.de>,
Robin Murphy <robin.murphy@arm.com>,
linux-arch@vger.kernel.org, darren@stevens-zone.net,
mad skateman <madskateman@gmail.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>,
paulus@samba.org, rtd2@xtra.co.nz,
"contact@a-eon.com" <contact@a-eon.com>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
nsaenzjulienne@suse.de
Subject: Re: Bug 205201 - Booting halts if Dawicontrol DC-2976 UW SCSI board installed, unless RAM size limited to 3500M
Date: Wed, 4 Dec 2019 09:56:34 +0100 [thread overview]
Message-ID: <20191204085634.GA25929@lst.de> (raw)
In-Reply-To: <20191127065624.GB16913@linux.ibm.com>
On Wed, Nov 27, 2019 at 08:56:25AM +0200, Mike Rapoport wrote:
> On Tue, Nov 26, 2019 at 05:40:26PM +0100, Christoph Hellwig wrote:
> > On Tue, Nov 26, 2019 at 12:26:38PM +0100, Christian Zigotzky wrote:
> > > Hello Christoph,
> > >
> > > The PCI TV card works with your patch! I was able to patch your Git kernel
> > > with the patch above.
> > >
> > > I haven't found any error messages in the dmesg yet.
> >
> > Thanks. Unfortunately this is a bit of a hack as we need to set
> > the mask based on runtime information like the magic FSL PCIe window.
> > Let me try to draft something better up, and thanks already for testing
> > this one!
>
> Maybe we'll simply force bottom up allocation before calling
> swiotlb_init()? Anyway, it's the last memblock allocation.
So I think we should go with this fix (plus a source code comment) for
now. Revamping the whole memory initialization is going to take a
while, and this fix also is easily backportable.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Mike Rapoport <rppt@linux.ibm.com>
Cc: linux-arch@vger.kernel.org, darren@stevens-zone.net,
rtd2@xtra.co.nz, linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>,
paulus@samba.org, mad skateman <madskateman@gmail.com>,
Christian Zigotzky <chzigotzky@xenosoft.de>,
"contact@a-eon.com" <contact@a-eon.com>,
Robin Murphy <robin.murphy@arm.com>,
Christoph Hellwig <hch@lst.de>,
nsaenzjulienne@suse.de
Subject: Re: Bug 205201 - Booting halts if Dawicontrol DC-2976 UW SCSI board installed, unless RAM size limited to 3500M
Date: Wed, 4 Dec 2019 09:56:34 +0100 [thread overview]
Message-ID: <20191204085634.GA25929@lst.de> (raw)
In-Reply-To: <20191127065624.GB16913@linux.ibm.com>
On Wed, Nov 27, 2019 at 08:56:25AM +0200, Mike Rapoport wrote:
> On Tue, Nov 26, 2019 at 05:40:26PM +0100, Christoph Hellwig wrote:
> > On Tue, Nov 26, 2019 at 12:26:38PM +0100, Christian Zigotzky wrote:
> > > Hello Christoph,
> > >
> > > The PCI TV card works with your patch! I was able to patch your Git kernel
> > > with the patch above.
> > >
> > > I haven't found any error messages in the dmesg yet.
> >
> > Thanks. Unfortunately this is a bit of a hack as we need to set
> > the mask based on runtime information like the magic FSL PCIe window.
> > Let me try to draft something better up, and thanks already for testing
> > this one!
>
> Maybe we'll simply force bottom up allocation before calling
> swiotlb_init()? Anyway, it's the last memblock allocation.
So I think we should go with this fix (plus a source code comment) for
now. Revamping the whole memory initialization is going to take a
while, and this fix also is easily backportable.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Mike Rapoport <rppt@linux.ibm.com>
Cc: linux-arch@vger.kernel.org, darren@stevens-zone.net,
rtd2@xtra.co.nz,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>,
paulus@samba.org, mad skateman <madskateman@gmail.com>,
Christian Zigotzky <chzigotzky@xenosoft.de>,
"contact@a-eon.com" <contact@a-eon.com>,
Robin Murphy <robin.murphy@arm.com>,
Christoph Hellwig <hch@lst.de>,
nsaenzjulienne@suse.de
Subject: Re: Bug 205201 - Booting halts if Dawicontrol DC-2976 UW SCSI board installed, unless RAM size limited to 3500M
Date: Wed, 4 Dec 2019 09:56:34 +0100 [thread overview]
Message-ID: <20191204085634.GA25929@lst.de> (raw)
In-Reply-To: <20191127065624.GB16913@linux.ibm.com>
On Wed, Nov 27, 2019 at 08:56:25AM +0200, Mike Rapoport wrote:
> On Tue, Nov 26, 2019 at 05:40:26PM +0100, Christoph Hellwig wrote:
> > On Tue, Nov 26, 2019 at 12:26:38PM +0100, Christian Zigotzky wrote:
> > > Hello Christoph,
> > >
> > > The PCI TV card works with your patch! I was able to patch your Git kernel
> > > with the patch above.
> > >
> > > I haven't found any error messages in the dmesg yet.
> >
> > Thanks. Unfortunately this is a bit of a hack as we need to set
> > the mask based on runtime information like the magic FSL PCIe window.
> > Let me try to draft something better up, and thanks already for testing
> > this one!
>
> Maybe we'll simply force bottom up allocation before calling
> swiotlb_init()? Anyway, it's the last memblock allocation.
So I think we should go with this fix (plus a source code comment) for
now. Revamping the whole memory initialization is going to take a
while, and this fix also is easily backportable.
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2019-12-04 8:56 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-16 7:06 Bug 205201 - Booting halts if Dawicontrol DC-2976 UW SCSI board installed, unless RAM size limited to 3500M Christian Zigotzky
2019-11-16 7:06 ` Christian Zigotzky
2019-11-21 7:29 ` Christoph Hellwig
2019-11-21 7:29 ` Christoph Hellwig
2019-11-21 7:29 ` Christoph Hellwig
2019-11-21 12:16 ` Christian Zigotzky
2019-11-21 12:16 ` Christian Zigotzky
2019-11-21 12:16 ` Christian Zigotzky
2019-11-21 12:21 ` Christian Zigotzky
2019-11-21 12:21 ` Christian Zigotzky
2019-11-21 12:21 ` Christian Zigotzky
2019-11-21 13:33 ` Robin Murphy
2019-11-21 13:33 ` Robin Murphy
2019-11-21 13:33 ` Robin Murphy
2019-11-21 16:34 ` Christian Zigotzky
2019-11-21 16:34 ` Christian Zigotzky
2019-11-21 16:34 ` Christian Zigotzky
2019-11-21 18:02 ` Christoph Hellwig
2019-11-21 18:02 ` Christoph Hellwig
2019-11-21 18:02 ` Christoph Hellwig
2019-11-21 18:21 ` Christian Zigotzky
2019-11-21 18:21 ` Christian Zigotzky
2019-11-21 18:21 ` Christian Zigotzky
2019-11-23 11:42 ` Christian Zigotzky
2019-11-23 11:42 ` Christian Zigotzky
2019-11-23 11:42 ` Christian Zigotzky
2019-11-25 7:39 ` Christoph Hellwig
2019-11-25 7:39 ` Christoph Hellwig
2019-11-25 7:39 ` Christoph Hellwig
2019-11-25 9:32 ` Mike Rapoport
2019-11-25 9:32 ` Mike Rapoport
2019-11-25 9:32 ` Mike Rapoport
2019-11-25 9:32 ` Mike Rapoport
2019-11-25 9:32 ` Mike Rapoport
2019-11-25 16:38 ` Christian Zigotzky
2019-11-25 16:38 ` Christian Zigotzky
2019-11-25 16:38 ` Christian Zigotzky
2019-11-26 11:57 ` Christian Zigotzky
2019-11-26 11:57 ` Christian Zigotzky
2019-11-26 11:57 ` Christian Zigotzky
2019-11-25 16:36 ` Christian Zigotzky
2019-11-25 16:36 ` Christian Zigotzky
2019-11-25 16:36 ` Christian Zigotzky
2019-11-26 11:26 ` Christian Zigotzky
2019-11-26 11:26 ` Christian Zigotzky
2019-11-26 11:26 ` Christian Zigotzky
2019-11-26 16:40 ` Christoph Hellwig
2019-11-26 16:40 ` Christoph Hellwig
2019-11-26 16:40 ` Christoph Hellwig
2019-11-27 6:56 ` Mike Rapoport
2019-11-27 6:56 ` Mike Rapoport
2019-11-27 6:56 ` Mike Rapoport
2019-11-27 6:56 ` Mike Rapoport
2019-11-27 8:53 ` Christoph Hellwig
2019-11-27 8:53 ` Christoph Hellwig
2019-11-27 8:53 ` Christoph Hellwig
2019-11-27 15:14 ` Christian Zigotzky
2019-11-27 15:14 ` Christian Zigotzky
2019-11-27 15:14 ` Christian Zigotzky
2019-12-04 8:56 ` Christoph Hellwig [this message]
2019-12-04 8:56 ` Christoph Hellwig
2019-12-04 8:56 ` Christoph Hellwig
2019-12-04 12:22 ` Christian Zigotzky
2019-12-04 12:22 ` Christian Zigotzky
2019-12-04 12:22 ` Christian Zigotzky
2019-12-04 12:22 ` Christian Zigotzky
2020-01-10 7:10 ` Christian Zigotzky
2020-01-10 7:10 ` Christian Zigotzky
2020-01-10 7:10 ` Christian Zigotzky
2020-01-15 15:18 ` Christoph Hellwig
2020-01-15 15:18 ` Christoph Hellwig
2020-01-15 15:18 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2019-10-29 4:49 Christian Zigotzky
2019-10-30 0:10 ` Christian Zigotzky
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