[PATCHv5 0/2] Speed Cap fixes for ppc64

[Alex Deucher]

On Wed, May 15, 2013 at 8:35 AM, Kleber Sacilotto de Souza
<klebers at linux.vnet.ibm.com> wrote:
> On 05/06/2013 11:32 AM, Alex Deucher wrote:
>>
>> On Fri, May 3, 2013 at 7:01 PM, Benjamin Herrenschmidt
>> <benh at kernel.crashing.org> wrote:
>>>
>>> On Fri, 2013-05-03 at 19:43 -0300, Kleber Sacilotto de Souza wrote:
>>>
>>>> This patch series does:
>>>>    1. max_bus_speed is used to set the device to gen2 speeds
>>>>    2. on power there's no longer a conflict between the pseries call and
>>>> other
>>>> architectures, because the overwrite is done via a ppc_md hook
>>>>    3. radeon is using bus->max_bus_speed instead of
>>>> drm_pcie_get_speed_cap_mask
>>>> for gen2 capability detection
>>>>
>>>> The first patch consists of some architecture changes, such as adding a
>>>> hook on
>>>> powerpc for pci_root_bridge_prepare, so that pseries will initialize it
>>>> to a
>>>> function, while all other architectures get a NULL pointer. So that
>>>> whenever
>>>> pci_create_root_bus is called, we'll get max_bus_speed properly setup
>>>> from
>>>> OpenFirmware.
>>>>
>>>> The second patch consists of simple radeon changes not to call
>>>> drm_get_pcie_speed_cap_mask anymore. I assume that on x86 machines,
>>>> the max_bus_speed property will be properly set already.
>>>
>>>
>>> So I'm ok with the approach now and I might even put the powerpc patch
>>> in for 3.10 since arguably we are fixing a nasty bug (uninitialized
>>> max_bus_speed).
>>>
>>> David, what's your feeling about the radeon change ? It would be nice if
>>> that could go in soon for various distro targets :-) On the other hand
>>> I'm not going to be pushy if you are not comfortable with it.
>>
>>
>> FWIW, the radeon change looks fine to me.
>>
>> Alex
>>
>
> Hi David,
>
> Are you planning to accept the radeon patch? If yes, can we still expect it
> to make it for 3.10?
>
> As Ben mentioned, we have some distro targets to make and it would be nice
> to have an outlook of the upstream acceptance to start the conversations
> with those distros.

Is the rest of this series already upstream?  I don't see a problem
pulling it in if the rest of the patches are in Dave's tree.  Dave, do
you want to grab this, or do you wan me to pull it in through my tree?

Alex