From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id F39E21A0BF3 for ; Thu, 23 Apr 2015 03:06:03 +1000 (AEST) Received: from e28smtp04.in.ibm.com (e28smtp04.in.ibm.com [122.248.162.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 55E751400A0 for ; Thu, 23 Apr 2015 03:06:03 +1000 (AEST) Received: from /spool/local by e28smtp04.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 22 Apr 2015 22:36:00 +0530 Received: from d28relay03.in.ibm.com (d28relay03.in.ibm.com [9.184.220.60]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id A9D62E0056 for ; Wed, 22 Apr 2015 22:38:37 +0530 (IST) Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay03.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t3MH5vWA1769962 for ; Wed, 22 Apr 2015 22:35:58 +0530 Received: from d28av01.in.ibm.com (localhost [127.0.0.1]) by d28av01.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id t3MH5vQ2006541 for ; Wed, 22 Apr 2015 22:35:57 +0530 From: Shilpasri G Bhat To: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org Subject: [PATCH 1/2] powerpc/powernv: Add definition of OPAL_MSG_OCC message type Date: Wed, 22 Apr 2015 22:34:24 +0530 Message-Id: <1429722265-2953-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com> Cc: Shilpasri G Bhat List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Add OPAL_MSG_OCC message definition to opal_message_type to notify OCC events like reset, load and throttled. Host performance can be affected when OCC is reset or OCC throttles the max Pstate. We can register to opal_message_notifier to receive OPAL_MSG_OCC type of message. The reset and load OCC events are notified to kernel when FSP sends OCC_RESET and OCC_LOAD commands. Both reset and load messages are sent to kernel on successful completion of reset and load operation respectively. The throttle OCC event indicates that the Pmax of the chip is reduced. The chip_id and throttle reason for reducing Pmax is also queued along with the message. Additional opal message type OPAL_MSG_PRD is added to maintain compatibility between opal and kernel definition of opal_message_type. Signed-off-by: Shilpasri G Bhat --- arch/powerpc/include/asm/opal-api.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h index 0321a90..50053b7 100644 --- a/arch/powerpc/include/asm/opal-api.h +++ b/arch/powerpc/include/asm/opal-api.h @@ -352,6 +352,14 @@ enum opal_msg_type { OPAL_MSG_SHUTDOWN, /* params[0] = 1 reboot, 0 shutdown */ OPAL_MSG_HMI_EVT, OPAL_MSG_DPO, + OPAL_MSG_PRD, + OPAL_MSG_OCC, /* + * params[0] = 0 reset, + * 1 load, + * 2 throttle + * params[1] = chip_id + * params[2] = throttle_status + */ OPAL_MSG_TYPE_MAX, }; -- 1.9.3