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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7EDB3C43217 for ; Thu, 19 May 2022 08:18:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235337AbiESISY (ORCPT ); Thu, 19 May 2022 04:18:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235315AbiESIRI (ORCPT ); Thu, 19 May 2022 04:17:08 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED8296473D for ; Thu, 19 May 2022 01:17:05 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4L3jP732SdzhZ5n; Thu, 19 May 2022 16:16:27 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 19 May 2022 16:17:04 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 19 May 2022 16:17:03 +0800 From: Kefeng Wang To: , , , , CC: , , , , Kefeng Wang Subject: [PATCH v3 0/6] arm64: Cleanup ioremap() and support ioremap_prot() Date: Thu, 19 May 2022 16:25:46 +0800 Message-ID: <20220519082552.117736-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 1. Enhance generic ioremap to make it more useful. 2. Let's arm64 use GENERIC_IOREMAP to cleanup code. 3. Support HAVE_IOREMAP_PROT on arm64, which enable generic_access_phys(), it is useful when debug(eg, gdb) via access_process_vm device memory infrastructure. v3: - add cleanup patch to kill ARM's unused arch_iounmap(the naming will be used in GENERIC_IOREMAP) and add comments for arch_ioremap/arch_iounmap hooks, per Anshuman Khandual - collect ack/review v2: - s/addr/phys_addr in ioremap_prot, suggested by Andrew Morton - rename arch_ioremap/iounmap_check to arch_ioremap/iounmad and change return value, per Christoph Hellwig and Andrew Morton - and use 'ifndef arch_ioremap' instead of weak function, per Arnd Bergmann - collect ack/review Kefeng Wang (6): ARM: mm: kill unused runtime hook arch_iounmap() mm: ioremap: Use more sensibly name in ioremap_prot() mm: ioremap: Setup phys_addr of struct vm_struct mm: ioremap: Add arch_ioremap/iounmap() arm64: mm: Convert to GENERIC_IOREMAP arm64: Add HAVE_IOREMAP_PROT support .../features/vm/ioremap_prot/arch-support.txt | 2 +- arch/arm/include/asm/io.h | 4 +- arch/arm/mm/ioremap.c | 9 +- arch/arm/mm/nommu.c | 9 +- arch/arm64/Kconfig | 2 + arch/arm64/include/asm/io.h | 20 +++-- arch/arm64/include/asm/pgtable.h | 10 +++ arch/arm64/kernel/acpi.c | 2 +- arch/arm64/mm/hugetlbpage.c | 10 --- arch/arm64/mm/ioremap.c | 85 +++---------------- include/asm-generic/io.h | 26 +++++- mm/ioremap.c | 30 +++++-- 12 files changed, 88 insertions(+), 121 deletions(-) -- 2.35.3 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 6047FC433EF for ; Thu, 19 May 2022 08:18:40 +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:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=q/AjpoI40HCBMzXdxAICJSA5wLSvKuSn8h+Oyv4EswQ=; b=zjCSsD4NSmYWXO WekI6XFo9oo1tJ1UFHh/AZ6G6ui1OY4gKWIDzxtXJTfQ8YH/3d/VzL8EZNiO3F7v4R4s7nT1DXclN SHYOeamilzlnXPHcAJb3YfVdLmLNeVCmxccv/aGXQ01iFmuyvsipMQMDIjzmhDFVD3RHwdcIOi8Ff frCwpughRJjBDkLMx2rPQgaBn7TkP6OcnKYgi6jS1s5SCILZD5cvjGRNtipJSsEldMQjoXwXMOZ9m 6W9ZPbXGIRvdvjZWDXHEnBpphKS+GfwfEJ9iDgNojBebeYLZ/htxhQZ2z5v70uG7wPvDHZPAMyTaE LoFkhLYwNGl9yhDJtdYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nrbLj-005kIe-TW; Thu, 19 May 2022 08:17:36 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nrbLI-005k2i-F3 for linux-arm-kernel@lists.infradead.org; Thu, 19 May 2022 08:17:12 +0000 Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4L3jP732SdzhZ5n; Thu, 19 May 2022 16:16:27 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 19 May 2022 16:17:04 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Thu, 19 May 2022 16:17:03 +0800 From: Kefeng Wang To: , , , , CC: , , , , Kefeng Wang Subject: [PATCH v3 0/6] arm64: Cleanup ioremap() and support ioremap_prot() Date: Thu, 19 May 2022 16:25:46 +0800 Message-ID: <20220519082552.117736-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220519_011708_785090_CBFE33D3 X-CRM114-Status: UNSURE ( 9.18 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 1. Enhance generic ioremap to make it more useful. 2. Let's arm64 use GENERIC_IOREMAP to cleanup code. 3. Support HAVE_IOREMAP_PROT on arm64, which enable generic_access_phys(), it is useful when debug(eg, gdb) via access_process_vm device memory infrastructure. v3: - add cleanup patch to kill ARM's unused arch_iounmap(the naming will be used in GENERIC_IOREMAP) and add comments for arch_ioremap/arch_iounmap hooks, per Anshuman Khandual - collect ack/review v2: - s/addr/phys_addr in ioremap_prot, suggested by Andrew Morton - rename arch_ioremap/iounmap_check to arch_ioremap/iounmad and change return value, per Christoph Hellwig and Andrew Morton - and use 'ifndef arch_ioremap' instead of weak function, per Arnd Bergmann - collect ack/review Kefeng Wang (6): ARM: mm: kill unused runtime hook arch_iounmap() mm: ioremap: Use more sensibly name in ioremap_prot() mm: ioremap: Setup phys_addr of struct vm_struct mm: ioremap: Add arch_ioremap/iounmap() arm64: mm: Convert to GENERIC_IOREMAP arm64: Add HAVE_IOREMAP_PROT support .../features/vm/ioremap_prot/arch-support.txt | 2 +- arch/arm/include/asm/io.h | 4 +- arch/arm/mm/ioremap.c | 9 +- arch/arm/mm/nommu.c | 9 +- arch/arm64/Kconfig | 2 + arch/arm64/include/asm/io.h | 20 +++-- arch/arm64/include/asm/pgtable.h | 10 +++ arch/arm64/kernel/acpi.c | 2 +- arch/arm64/mm/hugetlbpage.c | 10 --- arch/arm64/mm/ioremap.c | 85 +++---------------- include/asm-generic/io.h | 26 +++++- mm/ioremap.c | 30 +++++-- 12 files changed, 88 insertions(+), 121 deletions(-) -- 2.35.3 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel