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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E86B3C433EF for ; Fri, 15 Oct 2021 15:52:21 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4500D61090 for ; Fri, 15 Oct 2021 15:52:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4500D61090 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HW9kq6xG2z3dlC for ; Sat, 16 Oct 2021 02:52:19 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=PNE6NwfI; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::52b; helo=mail-pg1-x52b.google.com; envelope-from=npiggin@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=PNE6NwfI; dkim-atps=neutral Received: from mail-pg1-x52b.google.com (mail-pg1-x52b.google.com [IPv6:2607:f8b0:4864:20::52b]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4HW9cV6gtTz3c9p for ; Sat, 16 Oct 2021 02:46:50 +1100 (AEDT) Received: by mail-pg1-x52b.google.com with SMTP id q5so8955829pgr.7 for ; Fri, 15 Oct 2021 08:46:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/TWT/1VO2cM4mkWhFKaRQ6kP++Q2gMqGBqdMOR/cLj0=; b=PNE6NwfIZT1A0Ypd6u8SVVq9d+TRuWvei0geMjhl8TptP2Ff2B3edRxXS4bKW55uKJ A1thBjSp65LGO7LXsa/lAvtB1UqmjyZCvS7af5Pb4L3O1r9ZXI74UhLffi/tn+VK+5dS v2/P787ev/1xOZyWe7uPRSHPWpHhUHLISHm4QOZF+SAvO6VzZu2wyl+BKF51qVkkTUkX Vq3r5CpTF0xLjSwPVlLNIthsNmkpSrWB5p79aZIWt3Nlwte2egHv598yIAoO75D8iXEv VaLoksVOD87ax9AvnfasUC8DGqBBCZT+a/5mBu6lnbX6jOvVfwbfLxRrPSv/7vAEu2cm w5yA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/TWT/1VO2cM4mkWhFKaRQ6kP++Q2gMqGBqdMOR/cLj0=; b=ZgjUbA8n5bDFAtuBRBG0GticcOeMUKunQAs3flYNEK5fPWaXFQy6UOHj/0wdZCjMnD pAUqYmlsbjZn/ls2UU3hOy5NHos70YzWaF5jMKWVATqRDwwOuXJEbnXQo8qwsSG5FrtT Q2/VJl515XGZv73ipjX/qyqvjbTf9BadJbF9lCWtletKUEMpwr34NnqSq5866FFLsgJD h77VSrcNOQpzlCWrFCbcw0jskZ+4L90jAMveDJGUpqHGZf9P7QhhmamrcSVZq8p9Kw12 aB2RCfkPYcFmqxQHgqQWwubduKAaElTjN/t464a6l5V6EteM0y56S9X2LU3FSSWOEP8E hrQQ== X-Gm-Message-State: AOAM531a5i6BrvYc4ah6iK4Q9wRvtsY7hbdGeyEY8MEIG7XfmISzTxar /q73pq9nm1Xxjzr1bQSW15n3vxJybn4= X-Google-Smtp-Source: ABdhPJxWQe3Ik4PS+VI75Wu5iXVfERbMiWQA7GUwpw2xAqjpk81/3JZmVO2UKFCXPoickZMMPND6MQ== X-Received: by 2002:a05:6a00:24c1:b0:44d:3047:4229 with SMTP id d1-20020a056a0024c100b0044d30474229mr12479004pfv.70.1634312808866; Fri, 15 Oct 2021 08:46:48 -0700 (PDT) Received: from bobo.ozlabs.ibm.com (14-203-144-177.static.tpgi.com.au. [14.203.144.177]) by smtp.gmail.com with ESMTPSA id y1sm5392092pfo.104.2021.10.15.08.46.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Oct 2021 08:46:48 -0700 (PDT) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v1 08/11] powerpc/64s: Make flush_and_reload_slb a no-op when radix is enabled Date: Sat, 16 Oct 2021 01:46:21 +1000 Message-Id: <20211015154624.922960-9-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20211015154624.922960-1-npiggin@gmail.com> References: <20211015154624.922960-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicholas Piggin Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The radix test can exclude slb_flush_all_realmode() from being called because flush_and_reload_slb() is only expected to flush ERAT when called by flush_erat(), which is only on pre-ISA v3.0 CPUs that do not support radix. This helps the later change to make hash support configurable to not introduce runtime changes to radix mode behaviour. Signed-off-by: Nicholas Piggin --- arch/powerpc/kernel/mce_power.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c index c2f55fe7092d..cf5263b648fc 100644 --- a/arch/powerpc/kernel/mce_power.c +++ b/arch/powerpc/kernel/mce_power.c @@ -80,12 +80,12 @@ static bool mce_in_guest(void) #ifdef CONFIG_PPC_BOOK3S_64 void flush_and_reload_slb(void) { - /* Invalidate all SLBs */ - slb_flush_all_realmode(); - if (early_radix_enabled()) return; + /* Invalidate all SLBs */ + slb_flush_all_realmode(); + /* * This probably shouldn't happen, but it may be possible it's * called in early boot before SLB shadows are allocated. -- 2.23.0