From patchwork Tue May 3 13:22:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juergen Gross X-Patchwork-Id: 12835787 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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 889ECC433EF for ; Tue, 3 May 2022 13:22:25 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.319642.539954 (Exim 4.92) (envelope-from ) id 1nlsTn-0007IW-W3; Tue, 03 May 2022 13:22:15 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 319642.539954; Tue, 03 May 2022 13:22:15 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1nlsTn-0007IP-Ss; Tue, 03 May 2022 13:22:15 +0000 Received: by outflank-mailman (input) for mailman id 319642; Tue, 03 May 2022 13:22:13 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1nlsTl-0006lB-Px for xen-devel@lists.xenproject.org; Tue, 03 May 2022 13:22:13 +0000 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 09964a51-cae4-11ec-8fc4-03012f2f19d4; Tue, 03 May 2022 15:22:10 +0200 (CEST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 0970D1F74B; Tue, 3 May 2022 13:22:10 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 5EDF013ABE; Tue, 3 May 2022 13:22:09 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id x7ntFYEscWIASAAAMHmgww (envelope-from ); Tue, 03 May 2022 13:22:09 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 09964a51-cae4-11ec-8fc4-03012f2f19d4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1651584130; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=OCiFhYZGfRbvpOrr1IR3lhjXORH3jBMETGpB22+cUf4=; b=NkSvVU0jzbByPjBn7ogNMnnyej2TuY2z7mt0eVPium+9eD6GxprqRlfTrBS52DctN/QLAB t6vFitDNeyXk8vdjBpDcdufkxY558EEEVPi+0w4syg5u6iECR8XV+UsVAWKMZVYwPgtEQD Wu33a9malb3HwtZ2ImjJ0txaVGbFhYY= From: Juergen Gross To: xen-devel@lists.xenproject.org, x86@kernel.org, linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: jbeulich@suse.com, Juergen Gross , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter Subject: [PATCH 0/2] x86/pat: fix querying available caching modes Date: Tue, 3 May 2022 15:22:05 +0200 Message-Id: <20220503132207.17234-1-jgross@suse.com> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Fix some issues with querying caching modes being available for memory mappings. This is a replacement for the patch of Jan sent recently: https://lists.xen.org/archives/html/xen-devel/2022-04/msg02392.html Juergen Gross (2): x86/pat: fix x86_has_pat_wp() x86/pat: add functions to query specific cache mode availability arch/x86/include/asm/memtype.h | 2 ++ arch/x86/include/asm/pci.h | 2 +- arch/x86/mm/init.c | 24 ++++++++++++++++++++++-- drivers/gpu/drm/i915/gem/i915_gem_mman.c | 8 ++++---- 4 files changed, 29 insertions(+), 7 deletions(-)