[Skiboot] [PATCH 14/16] [PATCH 14/16] opencapi5: add opal functions

[Christophe Lombard]

Le 24/08/2021 à 04:25, Stewart Smith a écrit :
> On Fri, Aug 20, 2021, at 2:45 AM, Christophe Lombard wrote:
>> Add three OPAL API calls that are required by the ocxl driver.
>>
>>    - OPAL_PAU_SPA_SETUP
>>
>>      The Shared Process Area (SPA) is a table containing one entry (a
>>      "Process Element") per memory context which can be accessed by the
>>      OpenCAPI device.
>>
>>    - OPAL_PAU_SPA_CLEAR_CACHE
>>
>>      The PAU keeps a cache of recently accessed memory contexts. When a
>>      Process Element is removed from the SPA, the cache for the link must
>>      be cleared.
>>
>>    - OPAL_PAU_TL_SET
>>
>>      The Transaction Layer specification defines several templates for
>>      messages to be exchanged on the link. During link setup, the host
>>      and device must negotiate what templates are supported on both sides
>>      and at what rates those messages can be sent.
>>
>> Signed-off-by: Christophe Lombard <clombard at linux.vnet.ibm.com>
>> ---
>>   hw/npu-opal.c      |   8 +++
>>   hw/pau.c           | 159 +++++++++++++++++++++++++++++++++++++++++++++
>>   include/pau-regs.h |  13 ++++
>>   include/pau.h      |   9 +++
>>   4 files changed, 189 insertions(+)
> Probably want to add some documentation on the OPAL calls in doc/opal-api/
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right. Thanks.