From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E42EC43610 for ; Wed, 28 Nov 2018 09:27:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 020B720660 for ; Wed, 28 Nov 2018 09:27:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 020B720660 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=c-s.fr Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728220AbeK1U2V (ORCPT ); Wed, 28 Nov 2018 15:28:21 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:4834 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728187AbeK1U2U (ORCPT ); Wed, 28 Nov 2018 15:28:20 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 434b080yTgz9vBKJ; Wed, 28 Nov 2018 10:27:20 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id YjjvL2ikzmYX; Wed, 28 Nov 2018 10:27:20 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 434b080TWjz9vBK9; Wed, 28 Nov 2018 10:27:20 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id F0ACF8B85D; Wed, 28 Nov 2018 10:27:20 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 8bbXTsbtW2aF; Wed, 28 Nov 2018 10:27:20 +0100 (CET) Received: from po14163vm.idsi0.si.c-s.fr (po15451.idsi0.si.c-s.fr [172.25.231.2]) by messagerie.si.c-s.fr (Postfix) with ESMTP id D73F68B853; Wed, 28 Nov 2018 10:27:20 +0100 (CET) Received: by po14163vm.idsi0.si.c-s.fr (Postfix, from userid 0) id B14D169AFA; Wed, 28 Nov 2018 09:27:20 +0000 (UTC) Message-Id: <5b09cecccb64a577ee9c0cdef3b294ccd7f2ee70.1543356926.git.christophe.leroy@c-s.fr> In-Reply-To: <76d777b36e54e7b8d4c196405decc712fc5eaf45.1543356926.git.christophe.leroy@c-s.fr> References: <76d777b36e54e7b8d4c196405decc712fc5eaf45.1543356926.git.christophe.leroy@c-s.fr> From: Christophe Leroy Subject: [RFC PATCH v2 09/11] powerpc/32: add helper to write into segment registers To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , ruscur@russell.cc Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Wed, 28 Nov 2018 09:27:20 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch add an helper which wraps 'mtsrin' instruction to write into segment registers. Signed-off-by: Christophe Leroy --- arch/powerpc/include/asm/reg.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index d9598e6790d8..6b5d2a61af5a 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1424,6 +1424,11 @@ static inline void msr_check_and_clear(unsigned long bits) #define mfsrin(v) ({unsigned int rval; \ asm volatile("mfsrin %0,%1" : "=r" (rval) : "r" (v)); \ rval;}) + +static inline void mtsrin(u32 val, u32 idx) +{ + asm volatile("mtsrin %0, %1" : : "r" (val), "r" (idx)); +} #endif #define proc_trap() asm volatile("trap") -- 2.13.3