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=-8.7 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 94A00C04EB9 for ; Wed, 5 Dec 2018 12:31:07 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5FEA22084C for ; Wed, 5 Dec 2018 12:31:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Pgi2fbAF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5FEA22084C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=sNPPfss/ieAefrRq/s1HAysy4qHoQnykG7BbFlkHruk=; b=Pgi2fbAFcpjCLnjeq+hoDfjDKT lSLO/qrX5YP3N3SzCgqQGMbErtAeRxwPMS7lrx8UWNwPhp7wwM106SfCyJD0aOgxm4/rcHynO8PRo BY5BaT9gwGLjHQd7lill2k4JKOK7OIzHwGwRopCa9UljKzqAzF8PRDtx5F7lL/rBZa8tp4TRFbBIY 90YjstiYdr56K+MkmJmzpV0tCGsQUcWikgHzVhZgA8Nk0lfQbYNGupI93KoMkwZYLYRsJaYfrZkLT eS7DRt5UgLFLxl9us7Lt7adDkekp8fPXz1U244g1Djq/KH11koHqLR+EN/+7xEWq7H36dyXRLRolo laLZ/r9g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gUWKY-0003BF-M4; Wed, 05 Dec 2018 12:31:06 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gUWJc-0000tO-FB; Wed, 05 Dec 2018 12:30:14 +0000 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id F33E2307EAA1; Wed, 5 Dec 2018 12:29:57 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-65.ams2.redhat.com [10.36.117.65]) by smtp.corp.redhat.com (Postfix) with ESMTP id C4DF582789; Wed, 5 Dec 2018 12:29:11 +0000 (UTC) From: David Hildenbrand To: linux-mm@kvack.org Subject: [PATCH RFC 1/7] agp: efficeon: no need to set PG_reserved on GATT tables Date: Wed, 5 Dec 2018 13:28:45 +0100 Message-Id: <20181205122851.5891-2-david@redhat.com> In-Reply-To: <20181205122851.5891-1-david@redhat.com> References: <20181205122851.5891-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.44]); Wed, 05 Dec 2018 12:29:58 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181205_043008_539214_9D3C53EE X-CRM114-Status: GOOD ( 13.92 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, Arnd Bergmann , David Hildenbrand , David Airlie , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Matthew Wilcox , Michal Hocko , linux-m68k@lists.linux-m68k.org, linux-mediatek@lists.infradead.org, linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, Andrew Morton , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org The l1 GATT page table is kept in a special on-chip page with 64 entries. We allocate the l2 page table pages via get_zeroed_page() and enter them into the table. These l2 pages are modified accordingly when inserting/removing memory via efficeon_insert_memory and efficeon_remove_memory. Apart from that, these pages are not exposed or ioremap'ed. We can stop setting them reserved (propably copied from generic code). Cc: David Airlie Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Cc: Andrew Morton Cc: Michal Hocko Cc: Matthew Wilcox Signed-off-by: David Hildenbrand --- drivers/char/agp/efficeon-agp.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c index 7f88490b5479..c53f0f9ef5b0 100644 --- a/drivers/char/agp/efficeon-agp.c +++ b/drivers/char/agp/efficeon-agp.c @@ -163,7 +163,6 @@ static int efficeon_free_gatt_table(struct agp_bridge_data *bridge) unsigned long page = efficeon_private.l1_table[index]; if (page) { efficeon_private.l1_table[index] = 0; - ClearPageReserved(virt_to_page((char *)page)); free_page(page); freed++; } @@ -219,7 +218,6 @@ static int efficeon_create_gatt_table(struct agp_bridge_data *bridge) efficeon_free_gatt_table(agp_bridge); return -ENOMEM; } - SetPageReserved(virt_to_page((char *)page)); for (offset = 0; offset < PAGE_SIZE; offset += clflush_chunk) clflush((char *)page+offset); -- 2.17.2 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv