On Tue, May 7, 2013 at 6:16 PM, Benjamin Herrenschmidt
wrote:
> On Tue, 2013-05-07 at 15:44 -0700, Yinghai Lu wrote:
>> x86 32 socket system, we may need to leave more mmiol for only several
>> sockets to make them work with cards that does not support mmio 64 bit
>> pref.
>
> Ok, while on POWER e
On Tue, 2013-05-07 at 15:44 -0700, Yinghai Lu wrote:
> x86 32 socket system, we may need to leave more mmiol for only several
> sockets to make them work with cards that does not support mmio 64 bit
> pref.
Ok, while on POWER each root bridge has its own distinct 32-bit space
(mapped elsewhere in
On Tue, May 7, 2013 at 3:28 PM, Benjamin Herrenschmidt
wrote:
> On Tue, 2013-05-07 at 15:17 -0700, Yinghai Lu wrote:
>> For x86 8 sockets or 32 sockets system that will have one root bus per
>> socket,
>> They may have some root buses do not have mmio non-pref range.
>
> That seems very odd. Most
On Tue, 2013-05-07 at 15:17 -0700, Yinghai Lu wrote:
> For x86 8 sockets or 32 sockets system that will have one root bus per socket,
> They may have some root buses do not have mmio non-pref range.
That seems very odd. Most device registers are non-prefetchable. I know
of no adapter today that wo
For x86 8 sockets or 32 sockets system that will have one root bus per socket,
They may have some root buses do not have mmio non-pref range.
We should not fall into retry in this case, as root bus does
not mmio non-pref range.
We check if the root bus has mmio-nonpref range, and set bus_res_type
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