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=-12.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,TVD_SUBJ_WIPE_DEBT, USER_AGENT_GIT 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 3E97CC2B9F4 for ; Tue, 22 Jun 2021 10:58:54 +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 7B44661351 for ; Tue, 22 Jun 2021 10:58:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B44661351 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4G8NgJ72gxz3c40 for ; Tue, 22 Jun 2021 20:58:52 +1000 (AEST) 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=20161025 header.b=btO1uKTE; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::529; helo=mail-pg1-x529.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=20161025 header.b=btO1uKTE; dkim-atps=neutral Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) (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 4G8NfL1wshz2yx2 for ; Tue, 22 Jun 2021 20:58:02 +1000 (AEST) Received: by mail-pg1-x529.google.com with SMTP id v7so16766782pgl.2 for ; Tue, 22 Jun 2021 03:58:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=R1r0yBx8/sK5LQ18aCWWTuc9FFGjRmrTUBS3fruxffU=; b=btO1uKTEn9ovopnl0DTLnYDbAt8HHpDHNc+Qs7IQg1kkexesWbKyPuKp/OioVZSXR1 IDYqzJzHTMejFlakxU4JDXveIdcro4XDztb4f95kmmkBmjnmgkTxRQ9/BB70ldp0mKw5 +n/c1Jj4gXgSIp2Pq2dM26a2Bpb6neF0l7mpd3UEz2ZaeulWtp26+FNNs6IC3k6S7vtH MpoLO2X23dQImufEhnjPbLSNekucbW6vqioV1IA2yxfF3zHIh/3tDsON+Y+VMqHjVnMI k71dqu1+8E4/O1KYUyp9XrIm66ytIurQrSIHxTSrvS0+nnKsyT0Cdh19UNml5HbL4d19 Yn1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=R1r0yBx8/sK5LQ18aCWWTuc9FFGjRmrTUBS3fruxffU=; b=qZebNGkVHHQXgQhCFwfcKfUVfMQf1RAXCCSs1PnA7U7BodhiX5NRLBIN9KsmksgWY0 4wxR1JQt9OnqLfO7wczkNw36jdvhqDR98gNTIokMgy4iMrGP/sQ2Y3TWkzwIV03t0u6O JjbotEP++Xiq6pSX88mldcARhtR+ptUvAYGC4ia/00B8SgJTEjpx1/9535vlFUx9LFuu TgOBNrkqukR2KxSOpg/LopIwa2G+DDxINw5H/q89PLJ5hijrLlO5UQnG6Um6lVK49oh5 x5TJKkWfHnvv5xKATrmkLYujFmoTZ14zsNYMw4Doiu8OeXYNuZ5KDL8W6/AFZu6+qUHj GgWw== X-Gm-Message-State: AOAM5327G4voMAACO3Udjl3/edE8w41D/At8M7h6t7ozE4Z3ihv7JuHq Cgv2jdrdUmT4PaqhJVvo5ng= X-Google-Smtp-Source: ABdhPJwFCrG04fca8X3mHR68HCK+JemVsnFZXy2tatH6SRRos0P64vvC5pjDvqQEy1A5q6YIg/3jGQ== X-Received: by 2002:a63:5d5c:: with SMTP id o28mr3256953pgm.22.1624359478911; Tue, 22 Jun 2021 03:57:58 -0700 (PDT) Received: from bobo.ozlabs.ibm.com (60-242-147-73.tpgi.com.au. [60.242.147.73]) by smtp.gmail.com with ESMTPSA id l6sm5623621pgh.34.2021.06.22.03.57.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Jun 2021 03:57:58 -0700 (PDT) From: Nicholas Piggin To: kvm-ppc@vger.kernel.org Subject: [RFC PATCH 01/43] powerpc/64s: Remove WORT SPR from POWER9/10 Date: Tue, 22 Jun 2021 20:56:54 +1000 Message-Id: <20210622105736.633352-2-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210622105736.633352-1-npiggin@gmail.com> References: <20210622105736.633352-1-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: linuxppc-dev@lists.ozlabs.org, Nicholas Piggin Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This register is not architected and not implemented in POWER9 or 10, it just reads back zeroes for compatibility. -78 cycles (9255) cycles POWER9 virt-mode NULL hcall Signed-off-by: Nicholas Piggin --- arch/powerpc/kvm/book3s_hv.c | 3 --- arch/powerpc/platforms/powernv/idle.c | 2 -- 2 files changed, 5 deletions(-) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 9228042bd54f..97f3d6d54b61 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -3640,7 +3640,6 @@ static void load_spr_state(struct kvm_vcpu *vcpu) mtspr(SPRN_EBBHR, vcpu->arch.ebbhr); mtspr(SPRN_EBBRR, vcpu->arch.ebbrr); mtspr(SPRN_BESCR, vcpu->arch.bescr); - mtspr(SPRN_WORT, vcpu->arch.wort); mtspr(SPRN_TIDR, vcpu->arch.tid); mtspr(SPRN_AMR, vcpu->arch.amr); mtspr(SPRN_UAMOR, vcpu->arch.uamor); @@ -3667,7 +3666,6 @@ static void store_spr_state(struct kvm_vcpu *vcpu) vcpu->arch.ebbhr = mfspr(SPRN_EBBHR); vcpu->arch.ebbrr = mfspr(SPRN_EBBRR); vcpu->arch.bescr = mfspr(SPRN_BESCR); - vcpu->arch.wort = mfspr(SPRN_WORT); vcpu->arch.tid = mfspr(SPRN_TIDR); vcpu->arch.amr = mfspr(SPRN_AMR); vcpu->arch.uamor = mfspr(SPRN_UAMOR); @@ -3699,7 +3697,6 @@ static void restore_p9_host_os_sprs(struct kvm_vcpu *vcpu, struct p9_host_os_sprs *host_os_sprs) { mtspr(SPRN_PSPB, 0); - mtspr(SPRN_WORT, 0); mtspr(SPRN_UAMOR, 0); mtspr(SPRN_DSCR, host_os_sprs->dscr); diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c index 528a7e0cf83a..180baecad914 100644 --- a/arch/powerpc/platforms/powernv/idle.c +++ b/arch/powerpc/platforms/powernv/idle.c @@ -667,7 +667,6 @@ static unsigned long power9_idle_stop(unsigned long psscr) sprs.purr = mfspr(SPRN_PURR); sprs.spurr = mfspr(SPRN_SPURR); sprs.dscr = mfspr(SPRN_DSCR); - sprs.wort = mfspr(SPRN_WORT); sprs.ciabr = mfspr(SPRN_CIABR); sprs.mmcra = mfspr(SPRN_MMCRA); @@ -785,7 +784,6 @@ static unsigned long power9_idle_stop(unsigned long psscr) mtspr(SPRN_PURR, sprs.purr); mtspr(SPRN_SPURR, sprs.spurr); mtspr(SPRN_DSCR, sprs.dscr); - mtspr(SPRN_WORT, sprs.wort); mtspr(SPRN_CIABR, sprs.ciabr); mtspr(SPRN_MMCRA, sprs.mmcra); -- 2.23.0