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From: Christian Zigotzky <chzigotzky@xenosoft.de>
To: Christoph Hellwig <hch@lst.de>
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, Mike Rapoport <rppt@linux.ibm.com>,
	linux-mm@kvack.org, iommu@lists.linux-foundation.org,
	Rob Herring <robh+dt@kernel.org>,
	paulus@samba.org, mad skateman <madskateman@gmail.com>,
	"contact@a-eon.com" <contact@a-eon.com>,
	Robin Murphy <robin.murphy@arm.com>,
	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 13:22:01 +0100
Message-ID: <1D79E674-5A47-4268-AA96-DA02E8A51929@xenosoft.de> (raw)
In-Reply-To: <20191204085634.GA25929@lst.de>

I think we have to wait to Roland’s test results with his SCSI PCI card.

Christian

Sent from my iPhone

> On 4. Dec 2019, at 09:56, Christoph Hellwig <hch@lst.de> wrote:
> 
>> 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.
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Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <F1EBB706-73DF-430E-9020-C214EC8ED5DA@xenosoft.de>
2019-11-21  7:29 ` Christoph Hellwig
2019-11-21 12:16   ` Christian Zigotzky
2019-11-21 12:21     ` Christian Zigotzky
2019-11-21 13:33       ` Robin Murphy
2019-11-21 16:34         ` Christian Zigotzky
2019-11-21 18:02           ` Christoph Hellwig
2019-11-21 18:21             ` Christian Zigotzky
2019-11-23 11:42             ` Christian Zigotzky
2019-11-25  7:39               ` Christoph Hellwig
2019-11-25  9:32                 ` Mike Rapoport
2019-11-25 16:38                   ` Christian Zigotzky
2019-11-26 11:57                   ` Christian Zigotzky
2019-11-25 16:36                 ` Christian Zigotzky
2019-11-26 11:26                 ` Christian Zigotzky
2019-11-26 16:40                   ` Christoph Hellwig
2019-11-27  6:56                     ` Mike Rapoport
2019-11-27  8:53                       ` Christoph Hellwig
2019-11-27 15:14                       ` Christian Zigotzky
2019-12-04  8:56                       ` Christoph Hellwig
2019-12-04 12:22                         ` Christian Zigotzky [this message]

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