From patchwork Wed Aug 11 16:00:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicholas Piggin X-Patchwork-Id: 1515882 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Authentication-Results: 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=aDlRdsD4; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4GlF2F15NDz9sXS for ; Thu, 12 Aug 2021 02:02:13 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233227AbhHKQCf (ORCPT ); Wed, 11 Aug 2021 12:02:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232847AbhHKQCe (ORCPT ); Wed, 11 Aug 2021 12:02:34 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2C8DC061765 for ; Wed, 11 Aug 2021 09:02:10 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id w14so4172234pjh.5 for ; Wed, 11 Aug 2021 09:02:10 -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=jCxdivQtSElLr5d9idnYO7f6LUBSBDiT6V+2D6aLUKg=; b=aDlRdsD4I51ZZcZxRl0CmF1zHn4RYxWsHJ4/iLOfOd8NbRtE2QUQg60i0d0dn6IaSf OHfNgTaHEh1+Zwo1ZuhciLciJua9HiZI+t7dR3KthS+vpzKhjvDV3V+j6iO11KMniFWO y95cThRmDMfOwBvQkTzrbjQBxBPBwBe2YckNxbDGA2ypVJO61Bcg9OE9MkLoDt8vB6jM 9vxgiCduW63oudsTcY9h4a/lZwv/HWqdxfSNIYUsgTYksCvhch9IcYH1y8qPW/Yd0HhC C3qTG2E1WYWgayKHvqimfxuU00dNXFCe3QG2Nnz3quJpubM7fQ5Nt0U77ieT1iHsxe/h wJqA== 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=jCxdivQtSElLr5d9idnYO7f6LUBSBDiT6V+2D6aLUKg=; b=hEywnByEVoGWRZYOQmu6eO5m3JbTH8p5zxr/DCI9ILDraCZLfb3LM9DaFV08REFu2/ DnR6BleVXLyCXH13/eF2o5l1QkJVtp5o0AX9eZyBePCkUJO5+q/CdEEE+IiSwA0juyrG VYD2zy9049UEzhc6ZUluDCb/+2SsOV+4v1UStLHDzKwKyIhsWHAuj9s9jErN09KSbhaa oxSSaZoLVRgO8HEQEpTDI2V9rx9MqqgmjM8B25b0a9OfOtulDHD78S+SZ343QJO3vm96 rA/gkjPqb56s9oxgPEozbX5sNHA5eKlAqpi5g0zNdfQj4evGIz9w2hHQ5BigYSSsfrrF HVNg== X-Gm-Message-State: AOAM533oK71vyukkIAR/EkbrGh1wm6obX2ssyXBX1Ef82CeB5PLOechV zZ5wzescOXqFEymJZUypy2Llb+xGYpw= X-Google-Smtp-Source: ABdhPJwOe47kCVYD2CjJf/UNfti3v0EKt3Z98V8sfY0s93Cmt6jR9l3cIXm7nAZJRd6rLoInIll1YQ== X-Received: by 2002:a17:902:c711:b029:12c:9b3c:9986 with SMTP id p17-20020a170902c711b029012c9b3c9986mr19502076plp.44.1628697730313; Wed, 11 Aug 2021 09:02:10 -0700 (PDT) Received: from bobo.ibm.com ([118.210.97.79]) by smtp.gmail.com with ESMTPSA id k19sm6596494pff.28.2021.08.11.09.02.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Aug 2021 09:02:10 -0700 (PDT) From: Nicholas Piggin To: kvm-ppc@vger.kernel.org Cc: Nicholas Piggin , linuxppc-dev@lists.ozlabs.org, Fabiano Rosas Subject: [PATCH v2 10/60] powerpc/64s: Remove WORT SPR from POWER9/10 Date: Thu, 12 Aug 2021 02:00:44 +1000 Message-Id: <20210811160134.904987-11-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210811160134.904987-1-npiggin@gmail.com> References: <20210811160134.904987-1-npiggin@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org This register is not architected and not implemented in POWER9 or 10, it just reads back zeroes for compatibility. Reviewed-by: Fabiano Rosas 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 1a3ea0ea7514..3198f79572d8 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -3770,7 +3770,6 @@ 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); @@ -3797,7 +3796,6 @@ 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); @@ -3829,7 +3827,6 @@ 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 1e908536890b..df19e2ff9d3c 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);