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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 5DCCEC49360 for ; Mon, 14 Jun 2021 06:16:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39F2E613C2 for ; Mon, 14 Jun 2021 06:16:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232441AbhFNGS4 (ORCPT ); Mon, 14 Jun 2021 02:18:56 -0400 Received: from verein.lst.de ([213.95.11.211]:42576 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232045AbhFNGSy (ORCPT ); Mon, 14 Jun 2021 02:18:54 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 6D6E667373; Mon, 14 Jun 2021 08:16:44 +0200 (CEST) Date: Mon, 14 Jun 2021 08:16:44 +0200 From: Christoph Hellwig To: Claire Chang Cc: Rob Herring , mpe@ellerman.id.au, Joerg Roedel , Will Deacon , Frank Rowand , Konrad Rzeszutek Wilk , boris.ostrovsky@oracle.com, jgross@suse.com, Christoph Hellwig , Marek Szyprowski , benh@kernel.crashing.org, paulus@samba.org, "list@263.net:IOMMU DRIVERS" , sstabellini@kernel.org, Robin Murphy , grant.likely@arm.com, xypron.glpk@gmx.de, Thierry Reding , mingo@kernel.org, bauerman@linux.ibm.com, peterz@infradead.org, Greg KH , Saravana Kannan , "Rafael J . Wysocki" , heikki.krogerus@linux.intel.com, Andy Shevchenko , Randy Dunlap , Dan Williams , Bartosz Golaszewski , linux-devicetree , lkml , linuxppc-dev@lists.ozlabs.org, xen-devel@lists.xenproject.org, Nicolas Boichat , Jim Quinlan , tfiga@chromium.org, bskeggs@redhat.com, bhelgaas@google.com, chris@chris-wilson.co.uk, daniel@ffwll.ch, airlied@linux.ie, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, jani.nikula@linux.intel.com, jxgao@google.com, joonas.lahtinen@linux.intel.com, linux-pci@vger.kernel.org, maarten.lankhorst@linux.intel.com, matthew.auld@intel.com, rodrigo.vivi@intel.com, thomas.hellstrom@linux.intel.com Subject: Re: [PATCH v9 01/14] swiotlb: Refactor swiotlb init functions Message-ID: <20210614061644.GA28343@lst.de> References: <20210611152659.2142983-1-tientzu@chromium.org> <20210611152659.2142983-2-tientzu@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210611152659.2142983-2-tientzu@chromium.org> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 11, 2021 at 11:26:46PM +0800, Claire Chang wrote: > + spin_lock_init(&mem->lock); > + for (i = 0; i < mem->nslabs; i++) { > + mem->slots[i].list = IO_TLB_SEGSIZE - io_tlb_offset(i); > + mem->slots[i].orig_addr = INVALID_PHYS_ADDR; > + mem->slots[i].alloc_size = 0; > + } > + > + if (memory_decrypted) > + set_memory_decrypted((unsigned long)vaddr, bytes >> PAGE_SHIFT); > + memset(vaddr, 0, bytes); We don't really need to do this call before the memset. Which means we can just move it to the callers that care instead of having a bool argument. Otherwise looks good: Reviewed-by: Christoph Hellwig 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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 A8166C48BE6 for ; Mon, 14 Jun 2021 06:17:16 +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 DD8A1613BF for ; Mon, 14 Jun 2021 06:17:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DD8A1613BF Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de 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 4G3Lp31w8vz3015 for ; Mon, 14 Jun 2021 16:17:15 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lst.de (client-ip=213.95.11.211; helo=verein.lst.de; envelope-from=hch@lst.de; receiver=) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4G3Lnf6vSnz2yYH for ; Mon, 14 Jun 2021 16:16:53 +1000 (AEST) Received: by verein.lst.de (Postfix, from userid 2407) id 6D6E667373; Mon, 14 Jun 2021 08:16:44 +0200 (CEST) Date: Mon, 14 Jun 2021 08:16:44 +0200 From: Christoph Hellwig To: Claire Chang Subject: Re: [PATCH v9 01/14] swiotlb: Refactor swiotlb init functions Message-ID: <20210614061644.GA28343@lst.de> References: <20210611152659.2142983-1-tientzu@chromium.org> <20210611152659.2142983-2-tientzu@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210611152659.2142983-2-tientzu@chromium.org> User-Agent: Mutt/1.5.17 (2007-11-01) 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: heikki.krogerus@linux.intel.com, thomas.hellstrom@linux.intel.com, peterz@infradead.org, joonas.lahtinen@linux.intel.com, dri-devel@lists.freedesktop.org, chris@chris-wilson.co.uk, grant.likely@arm.com, paulus@samba.org, Frank Rowand , mingo@kernel.org, Marek Szyprowski , sstabellini@kernel.org, Saravana Kannan , Joerg Roedel , "Rafael J . Wysocki" , Christoph Hellwig , Bartosz Golaszewski , bskeggs@redhat.com, linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org, Thierry Reding , intel-gfx@lists.freedesktop.org, matthew.auld@intel.com, linux-devicetree , jxgao@google.com, daniel@ffwll.ch, Will Deacon , Konrad Rzeszutek Wilk , maarten.lankhorst@linux.intel.com, airlied@linux.ie, Dan Williams , linuxppc-dev@lists.ozlabs.org, jani.nikula@linux.intel.com, Rob Herring , rodrigo.vivi@intel.com, bhelgaas@google.com, boris.ostrovsky@oracle.com, Andy Shevchenko , jgross@suse.com, Nicolas Boichat , Greg KH , Randy Dunlap , lkml , tfiga@chromium.org, "list@263.net:IOMMU DRIVERS" , Jim Quinlan , xypron.glpk@gmx.de, Robin Murphy , bauerman@linux.ibm.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Fri, Jun 11, 2021 at 11:26:46PM +0800, Claire Chang wrote: > + spin_lock_init(&mem->lock); > + for (i = 0; i < mem->nslabs; i++) { > + mem->slots[i].list = IO_TLB_SEGSIZE - io_tlb_offset(i); > + mem->slots[i].orig_addr = INVALID_PHYS_ADDR; > + mem->slots[i].alloc_size = 0; > + } > + > + if (memory_decrypted) > + set_memory_decrypted((unsigned long)vaddr, bytes >> PAGE_SHIFT); > + memset(vaddr, 0, bytes); We don't really need to do this call before the memset. Which means we can just move it to the callers that care instead of having a bool argument. Otherwise looks good: Reviewed-by: Christoph Hellwig 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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 8F263C48BE8 for ; Mon, 14 Jun 2021 06:16:56 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 3D004610A2 for ; Mon, 14 Jun 2021 06:16:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3D004610A2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 0721F40124; Mon, 14 Jun 2021 06:16:56 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5P6PoY4rXvH3; Mon, 14 Jun 2021 06:16:55 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp2.osuosl.org (Postfix) with ESMTPS id 139A7402CD; Mon, 14 Jun 2021 06:16:55 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id E34BCC000E; Mon, 14 Jun 2021 06:16:54 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [IPv6:2605:bc80:3010::136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 10853C000B for ; Mon, 14 Jun 2021 06:16:54 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id F35DE6063F for ; Mon, 14 Jun 2021 06:16:53 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id B_wPCUCjZaFX for ; Mon, 14 Jun 2021 06:16:53 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by smtp3.osuosl.org (Postfix) with ESMTPS id E4DFD605DC for ; Mon, 14 Jun 2021 06:16:52 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 6D6E667373; Mon, 14 Jun 2021 08:16:44 +0200 (CEST) Date: Mon, 14 Jun 2021 08:16:44 +0200 From: Christoph Hellwig To: Claire Chang Subject: Re: [PATCH v9 01/14] swiotlb: Refactor swiotlb init functions Message-ID: <20210614061644.GA28343@lst.de> References: <20210611152659.2142983-1-tientzu@chromium.org> <20210611152659.2142983-2-tientzu@chromium.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210611152659.2142983-2-tientzu@chromium.org> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: heikki.krogerus@linux.intel.com, thomas.hellstrom@linux.intel.com, peterz@infradead.org, benh@kernel.crashing.org, joonas.lahtinen@linux.intel.com, dri-devel@lists.freedesktop.org, chris@chris-wilson.co.uk, grant.likely@arm.com, paulus@samba.org, Frank Rowand , mingo@kernel.org, sstabellini@kernel.org, Saravana Kannan , mpe@ellerman.id.au, "Rafael J . Wysocki" , Christoph Hellwig , Bartosz Golaszewski , bskeggs@redhat.com, linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org, Thierry Reding , intel-gfx@lists.freedesktop.org, matthew.auld@intel.com, linux-devicetree , jxgao@google.com, daniel@ffwll.ch, Will Deacon , Konrad Rzeszutek Wilk , maarten.lankhorst@linux.intel.com, airlied@linux.ie, Dan Williams , linuxppc-dev@lists.ozlabs.org, jani.nikula@linux.intel.com, Rob Herring , rodrigo.vivi@intel.com, bhelgaas@google.com, boris.ostrovsky@oracle.com, Andy Shevchenko , jgross@suse.com, Nicolas Boichat , Greg KH , Randy Dunlap , lkml , "list@263.net:IOMMU DRIVERS" , Jim Quinlan , xypron.glpk@gmx.de, Robin Murphy , bauerman@linux.ibm.com X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Fri, Jun 11, 2021 at 11:26:46PM +0800, Claire Chang wrote: > + spin_lock_init(&mem->lock); > + for (i = 0; i < mem->nslabs; i++) { > + mem->slots[i].list = IO_TLB_SEGSIZE - io_tlb_offset(i); > + mem->slots[i].orig_addr = INVALID_PHYS_ADDR; > + mem->slots[i].alloc_size = 0; > + } > + > + if (memory_decrypted) > + set_memory_decrypted((unsigned long)vaddr, bytes >> PAGE_SHIFT); > + memset(vaddr, 0, bytes); We don't really need to do this call before the memset. Which means we can just move it to the callers that care instead of having a bool argument. Otherwise looks good: Reviewed-by: Christoph Hellwig _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu 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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 1FFBFC49361 for ; Mon, 14 Jun 2021 06:16:54 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 D51CA613C3 for ; Mon, 14 Jun 2021 06:16:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D51CA613C3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 62C2989D83; Mon, 14 Jun 2021 06:16:53 +0000 (UTC) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9F26D89D83; Mon, 14 Jun 2021 06:16:51 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 6D6E667373; Mon, 14 Jun 2021 08:16:44 +0200 (CEST) Date: Mon, 14 Jun 2021 08:16:44 +0200 From: Christoph Hellwig To: Claire Chang Message-ID: <20210614061644.GA28343@lst.de> References: <20210611152659.2142983-1-tientzu@chromium.org> <20210611152659.2142983-2-tientzu@chromium.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210611152659.2142983-2-tientzu@chromium.org> User-Agent: Mutt/1.5.17 (2007-11-01) Subject: Re: [Intel-gfx] [PATCH v9 01/14] swiotlb: Refactor swiotlb init functions X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: heikki.krogerus@linux.intel.com, thomas.hellstrom@linux.intel.com, peterz@infradead.org, benh@kernel.crashing.org, dri-devel@lists.freedesktop.org, chris@chris-wilson.co.uk, grant.likely@arm.com, paulus@samba.org, Frank Rowand , mingo@kernel.org, Marek Szyprowski , sstabellini@kernel.org, Saravana Kannan , mpe@ellerman.id.au, Joerg Roedel , "Rafael J . Wysocki" , Christoph Hellwig , Bartosz Golaszewski , bskeggs@redhat.com, linux-pci@vger.kernel.org, xen-devel@lists.xenproject.org, Thierry Reding , intel-gfx@lists.freedesktop.org, matthew.auld@intel.com, linux-devicetree , jxgao@google.com, Will Deacon , Konrad Rzeszutek Wilk , airlied@linux.ie, Dan Williams , linuxppc-dev@lists.ozlabs.org, Rob Herring , bhelgaas@google.com, boris.ostrovsky@oracle.com, Andy Shevchenko , jgross@suse.com, Nicolas Boichat , Greg KH , Randy Dunlap , lkml , tfiga@chromium.org, "list@263.net:IOMMU DRIVERS" , Jim Quinlan , xypron.glpk@gmx.de, Robin Murphy , bauerman@linux.ibm.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On Fri, Jun 11, 2021 at 11:26:46PM +0800, Claire Chang wrote: > + spin_lock_init(&mem->lock); > + for (i = 0; i < mem->nslabs; i++) { > + mem->slots[i].list = IO_TLB_SEGSIZE - io_tlb_offset(i); > + mem->slots[i].orig_addr = INVALID_PHYS_ADDR; > + mem->slots[i].alloc_size = 0; > + } > + > + if (memory_decrypted) > + set_memory_decrypted((unsigned long)vaddr, bytes >> PAGE_SHIFT); > + memset(vaddr, 0, bytes); We don't really need to do this call before the memset. Which means we can just move it to the callers that care instead of having a bool argument. Otherwise looks good: Reviewed-by: Christoph Hellwig _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx