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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 A35A9C433DF for ; Fri, 21 Aug 2020 08:50:41 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 727C9208DB for ; Fri, 21 Aug 2020 08:50:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 727C9208DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=chris-wilson.co.uk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 0EC3D8D000D; Fri, 21 Aug 2020 04:50:41 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 09D7D8D0005; Fri, 21 Aug 2020 04:50:41 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EAB7A8D000D; Fri, 21 Aug 2020 04:50:40 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0196.hostedemail.com [216.40.44.196]) by kanga.kvack.org (Postfix) with ESMTP id CFA708D0005 for ; Fri, 21 Aug 2020 04:50:40 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 9C1F0181AEF10 for ; Fri, 21 Aug 2020 08:50:40 +0000 (UTC) X-FDA: 77173955040.24.lamp24_500e25d27037 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin24.hostedemail.com (Postfix) with ESMTP id 747671A4A5 for ; Fri, 21 Aug 2020 08:50:40 +0000 (UTC) X-HE-Tag: lamp24_500e25d27037 X-Filterd-Recvd-Size: 2654 Received: from fireflyinternet.com (unknown [77.68.26.236]) by imf01.hostedemail.com (Postfix) with ESMTP for ; Fri, 21 Aug 2020 08:50:39 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from build.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 22195098-1500050 for multiple; Fri, 21 Aug 2020 09:50:15 +0100 From: Chris Wilson To: linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org Cc: linux-mm@kvack.org, Chris Wilson , Pavel Machek , Andrew Morton , Joerg Roedel , Linus Torvalds , Dave Airlie , Joonas Lahtinen , Rodrigo Vivi , stable@vger.kernel.org Subject: [PATCH 2/4] drm/i915/gem: Sync the vmap PTEs upon construction Date: Fri, 21 Aug 2020 09:50:09 +0100 Message-Id: <20200821085011.28878-2-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200821085011.28878-1-chris@chris-wilson.co.uk> References: <20200821085011.28878-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 X-Rspamd-Queue-Id: 747671A4A5 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Since synchronising the PTE after assignment is a manual step, use the newly exported interface to flush the PTE after assigning via alloc_vm_area(). Reported-by: Pavel Machek References: 2ba3e6947aed ("mm/vmalloc: track which page-table levels were= modified") Signed-off-by: Chris Wilson Cc: Andrew Morton Cc: Joerg Roedel Cc: Linus Torvalds Cc: Dave Airlie Cc: Joonas Lahtinen Cc: Rodrigo Vivi Cc: Pavel Machek Cc: # v5.8+ --- drivers/gpu/drm/i915/gem/i915_gem_pages.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/= i915/gem/i915_gem_pages.c index 7050519c87a4..0fee67f34d74 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c @@ -304,6 +304,7 @@ static void *i915_gem_object_map(struct drm_i915_gem_= object *obj, for_each_sgt_daddr(addr, iter, sgt) **ptes++ =3D iomap_pte(iomap, addr, pgprot); } + flush_vm_area(area); =20 if (mem !=3D stack) kvfree(mem); --=20 2.20.1