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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id E3D4BC54EE9 for ; Wed, 28 Sep 2022 12:14:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Wy2M5hFaWWjY3AzVEEuRX291gYwqg0+aAanyuJYVYZI=; b=FFxrmxhRySjIMV kgcI14Slr4u/qwVhdRZ9QyHIbIxB/wU81MrXfsz6jKiEvPs9oOjyCkrHbZKkwnaKy2Wms+/bs3FpL lf+KRv9Sa65PImiEKtGGqOSBgu5bgUO7/CeMC4Q2Kt+AwcjmVmat38TP9zzJlmZ0DBme9l1JkxMTb SYAfFGRCgJQKIf/iKxpeLBsKd3W6Hv71Y4Hzi2PxnSzebWLUdhj5zGHT1GyMP9Gq0rWqTaEauaR+t lofMNJogYiZqPTowU2K7GUC5fo9KeOXJoEBetp+wj9ypvVdc8JzuL3U+7d/pcljs5Rp6zFUpKS4+O iJPxunzK/AvdziaNPq4Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1odVxR-00GAlV-1B; Wed, 28 Sep 2022 12:14:33 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1odVxO-00GAkC-MR; Wed, 28 Sep 2022 12:14:30 +0000 Date: Wed, 28 Sep 2022 05:14:30 -0700 From: Christoph Hellwig To: Palmer Dabbelt Cc: apatel@ventanamicro.com, Paul Walmsley , atishp@atishpatra.org, heiko@sntech.de, anup@brainfault.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, mchitale@ventanamicro.com Subject: Re: [PATCH v2 1/4] RISC-V: Fix ioremap_cache() and ioremap_wc() for systems with Svpbmt Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Thu, Sep 22, 2022 at 09:35:56AM -0700, Palmer Dabbelt wrote: > Sorry I missed this, I thought it was just part of the rest of this patch > set. That said, I'm not actually sure this is a critical fix: sure it's a > performance problem, and if some driver is expecting ioremap_cache() to go > fast then possibly a pretty big one, but the only Svpmbt hardware that More importantly nothing should be using ioremap_cache at all. It is an API that has long been deprecated in favor of memremap. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv