Re: [PATCH 0/6] Radeon support on ppc64/pseries

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On Fri, Jun 07, 2013 at 01:30:51PM -0300, Kleber Sacilotto de Souza wrote:
> On 06/06/2013 08:29 PM, Greg KH wrote:
> >On Thu, Jun 06, 2013 at 08:20:06PM -0300, Kleber Sacilotto de Souza wrote:
> >>This patch series contains some patches needed to support
> >>radeon graphics cards on ppc64/pseries systems.
> >
> >This is a new feature, so why should it be included in the stable kernel
> >series?  Can't you just wait for 3.10?
> >
> >thanks,
> >
> >greg k-h
> >
> 
> Greg,
> 
> I think my request wasn't descriptive enough, so let me rephrase it.
> 
> These changes aren't actually for a new feature, they fix some
> problems found during tests of a Radeon adapter on ppc64/pseries
> system.
> 
> commit 88e7b167a079f090405ab4390b629b5effdab41a upstream.
> (1/6: pci: Set dev->dev.type in alloc_pci_dev)
> commit c2e1d84523ad2a19e5be08c1f01999cc9e82652e upstream.
> (2/6: powerpc: Set default VGA device)
> 
> The above patches are necessary to have X to use the adapter with
> autoconfiguration.
> 
> commit e61133dda480062d221f09e4fc18f66763f8ecd0 upstream.
> (3/6: powerpc/pseries: Force 32 bit MSIs for devices that require it)
> commit f1dd153121dcb872ae6cba8d52bec97519eb7d97 upstream.
> (4/6: powerpc/pseries: Make 32-bit MSI quirk work on systems lacking
> firmware support)
> 
> The above patches fix EEH errors when the adapter tries to set up the MSI's.
> 
> commit d82fb31abc46620b7c22758c75707069f2763646 upstream.
> (5/6: powerpc/pseries: Perform proper max_bus_speed detection)
> commit 7e0e41963740525af702bb23edede8ae9afc4ac0 upstream.
> (6/6: radeon: use max_bus_speed to activate gen2 speeds)
> 
> The above patches fix the kernel oops that is triggered when the
> adapter tries to force PCI-E Gen2 speeds.
> 
> The last four patches fix problems that make the radeon adapters not
> usable at all on ppc64/pseries with kernels before 3.10, so these
> are the more critical ones. If you think the first two are not
> critical enough for the stable releases, we would be more than happy
> with only the last four.

Sounds good, I've applied all of them, thanks for the explaination.

greg k-h
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