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=-7.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS 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 DA134C43381 for ; Thu, 21 Feb 2019 19:08:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A74AE2083B for ; Thu, 21 Feb 2019 19:08:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=c-s.fr header.i=@c-s.fr header.b="XQW+54wH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726640AbfBUTIt (ORCPT ); Thu, 21 Feb 2019 14:08:49 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:10798 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726488AbfBUTIq (ORCPT ); Thu, 21 Feb 2019 14:08:46 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4453sn0Jmwz9v6l6; Thu, 21 Feb 2019 20:08:45 +0100 (CET) Authentication-Results: localhost; dkim=pass reason="1024-bit key; insecure key" header.d=c-s.fr header.i=@c-s.fr header.b=XQW+54wH; dkim-adsp=pass; dkim-atps=neutral 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 iX7qrrwEcELT; Thu, 21 Feb 2019 20:08:44 +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 4453sm6DlYz9v6l5; Thu, 21 Feb 2019 20:08:44 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=c-s.fr; s=mail; t=1550776124; bh=ccf0q8MxveX5A/kD+EyhGHMgyOOsoAgRMM6RQCBw488=; h=In-Reply-To:References:From:Subject:To:Cc:Date:From; b=XQW+54wHmUiaRFKUF+D/fBbwmgxHedz3leUsTByMVqFevpJtMirejjPNwQaUv4KA8 +uEMhDPz85UgoLjBb8QkAvn4vD1HYVoKMeg0OU04/CWd+ALYzBJtVkoTXWNrXIbm8v 2B6cXPGoCwZjzM2yfmfoguApjS2UbJqqO0H5QWc4= Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id D88078B852; Thu, 21 Feb 2019 20:08:44 +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 0AQ4MwL2JTi8; Thu, 21 Feb 2019 20:08:44 +0100 (CET) Received: from po16846vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id AFF668B86B; Thu, 21 Feb 2019 20:08:44 +0100 (CET) Received: by po16846vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 88A5D6EF61; Thu, 21 Feb 2019 19:08:44 +0000 (UTC) Message-Id: In-Reply-To: References: From: Christophe Leroy Subject: [PATCH v5 08/16] powerpc/32: add helper to write into segment registers To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , j.neuschaefer@gmx.net Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Thu, 21 Feb 2019 19:08:44 +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 1c98ef1f2d5b..a70cbaf5c26f 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1425,6 +1425,11 @@ 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