• Frederic Barrat's avatar
    powerpc/powernv: Add opal calls for opencapi · 74d656d2
    Frederic Barrat authored
    Add opal calls to interact with the NPU:
    
    OPAL_NPU_SPA_SETUP: set the Shared Process Area (SPA)
    The SPA is a table containing one entry (Process Element) per memory
    context which can be accessed by the opencapi device.
    
    OPAL_NPU_SPA_CLEAR_CACHE: clear the context cache
    The NPU 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_NPU_TL_SET: configure the Transaction Layer
    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: default avatarFrederic Barrat <fbarrat@linux.vnet.ibm.com>
    Acked-by: default avatarAndrew Donnellan <andrew.donnellan@au1.ibm.com>
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
    74d656d2
opal-api.h 28.9 KB