From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3yx3sq2CYWzDrWg for ; Wed, 13 Dec 2017 02:39:43 +1100 (AEDT) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id vBCFa7kc071108 for ; Tue, 12 Dec 2017 10:39:41 -0500 Received: from e06smtp13.uk.ibm.com (e06smtp13.uk.ibm.com [195.75.94.109]) by mx0b-001b2d01.pphosted.com with ESMTP id 2ethhxsj6y-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 12 Dec 2017 10:39:40 -0500 Received: from localhost by e06smtp13.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 12 Dec 2017 15:39:36 -0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id vBCFdZRA64487652 for ; Tue, 12 Dec 2017 15:39:35 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4EA524C050 for ; Tue, 12 Dec 2017 15:34:20 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3657F4C044 for ; Tue, 12 Dec 2017 15:34:20 +0000 (GMT) Received: from [9.101.4.37] (unknown [9.101.4.37]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP for ; Tue, 12 Dec 2017 15:34:20 +0000 (GMT) Subject: Re: [PATCH V2] cxl: Add support for ASB_Notify on POWER9 To: linuxppc-dev@lists.ozlabs.org References: <1512143620-31330-1-git-send-email-clombard@linux.vnet.ibm.com> From: Philippe Bergheaud Date: Tue, 12 Dec 2017 16:39:34 +0100 MIME-Version: 1.0 In-Reply-To: <1512143620-31330-1-git-send-email-clombard@linux.vnet.ibm.com> Content-Type: text/plain; charset=windows-1252; format=flowed Message-Id: <3024654d-dba5-3394-2a78-a94b7de4d995@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 > Reviewed-by: Philippe Bergheaud