Re: [PATCH 00/26] ppc/pnv: Extend the powernv10 machine

[Cédric Le Goater]

On 8/10/21 5:12 AM, David Gibson wrote:
> On Mon, Aug 09, 2021 at 03:45:21PM +0200, Cédric Le Goater wrote:
>> Hi,
>>
>> This series adds the minimum set of models (XIVE2, PHB5) to boot a
>> baremetal POWER10 machine using the OpenPOWER firmware images.
>>
>> The major change is the support for the interrupt controller of the
>> POWER10 processor. XIVE2 is very much like XIVE but the register
>> interface, the different MMIO regions, the XIVE internal descriptors
>> have gone through a major cleanup. It was easier to duplicate the
>> models then to try to adapt the current models. XIVE2 adds some new
>> set of features. Not all are modeled here but we add the
>> "Address-based trigger" mode which is activated by default on the
>> PHB5. When using ABT, the PHB5 offloads all interrupt management on
>> the IC, this to improve latency.
> 
> 5..8/26 applied to ppc-for-6.2, continuing to look at the rest.

The XIVE2 part is somewhat tedious ... :/ 

I sent the acceptance patch for the P8 and P9 machines. It also works 
for P10 with the newer skiboot which activates all the newer features
for HW.

C.