From patchwork Wed May 12 14:48:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 437900 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, 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 2D703C433B4 for ; Wed, 12 May 2021 16:56:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E8FDB611AD for ; Wed, 12 May 2021 16:56:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235246AbhELQ4S (ORCPT ); Wed, 12 May 2021 12:56:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:36672 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243975AbhELQmV (ORCPT ); Wed, 12 May 2021 12:42:21 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9CF7761CF7; Wed, 12 May 2021 16:09:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620835746; bh=taiSfcW3kBV8bXDhVoywPmuDC0TJiQjiM7raHel3s+E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=z/VON5x/4GbqIAs76uinMeA5MgOY8I38aL56ICpWQ5U9Dx8e5s/BKPsf6qlqqFz/r Rq5yiuqkpXyodlDIOXq54UbMDpoGLWXA0yJuZBRKTjvv9PyaoZfaOzsS6medW7KYc/ qTvrKO/vzvNUpplJlCUJHVdbCgO3FIrff2YH0bHI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Huang Pei , Jiaxun Yang , Thomas Bogendoerfer , Sasha Levin Subject: [PATCH 5.12 468/677] MIPS: loongson64: fix bug when PAGE_SIZE > 16KB Date: Wed, 12 May 2021 16:48:34 +0200 Message-Id: <20210512144852.911877664@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144837.204217980@linuxfoundation.org> References: <20210512144837.204217980@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Huang Pei [ Upstream commit 509d36a941a3466b78d4377913623d210b162458 ] When page size larger than 16KB, arguments "vaddr + size(16KB)" in "ioremap_page_range(vaddr, vaddr + size,...)" called by "add_legacy_isa_io" is not page-aligned. As loongson64 needs at least page size 16KB to get rid of cache alias, and "vaddr" is 64KB-aligned, and 64KB is largest page size supported, rounding "size" up to PAGE_SIZE is enough for all page size supported. Fixes: 6d0068ad15e4 ("MIPS: Loongson64: Process ISA Node in DeviceTree") Signed-off-by: Huang Pei Acked-by: Jiaxun Yang Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin --- arch/mips/loongson64/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index cfa788bca871..1c664b23c0f9 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -126,7 +126,7 @@ static int __init add_legacy_isa_io(struct fwnode_handle *fwnode, resource_size_ return -ENOMEM; range->fwnode = fwnode; - range->size = size; + range->size = size = round_up(size, PAGE_SIZE); range->hw_start = hw_start; range->flags = LOGIC_PIO_CPU_MMIO;