[PATCH V2] cxl: Add support for ASB_Notify on POWER9

Philippe Bergheaud felix at linux.vnet.ibm.com
Wed Dec 13 02:39:34 AEDT 2017


On 01/12/2017 16:53, Christophe Lombard wrote:
> The POWER9 core supports a new feature: ASB_Notify which requires the
> support of the Special Purpose Register: TIDR.
>
> The ASB_Notify command, generated by the AFU, will attempt to
> wake-up the host thread identified by the particular LPID:PID:TID.
>
> This patch assign a unique TIDR (thread id) for the current thread which
> will be used in the process element entry.
>
> A next patch will handle a new kind of "compatible" property in the
> device-tree (PHB DT node) indicating which version of CAPI and which
> features are supported.
>
> Signed-off-by: Christophe Lombard <clombard at linux.vnet.ibm.com>
>

Reviewed-by: Philippe Bergheaud <felix at linux.vnet.ibm.com>



More information about the Linuxppc-dev mailing list