From patchwork Fri Sep 22 08:04:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13395254 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 828BECD4F3A for ; Fri, 22 Sep 2023 08:06:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232054AbjIVIGs (ORCPT ); Fri, 22 Sep 2023 04:06:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231902AbjIVIGr (ORCPT ); Fri, 22 Sep 2023 04:06:47 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E9381E5D; Fri, 22 Sep 2023 01:06:40 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 87CFD21A5F; Fri, 22 Sep 2023 08:06:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1695369999; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=3QG+Cze+W0LpO1aDFCtgFLHS4SODZxsd/R/X5eIOTlU=; b=pElCaexwLmft9z34QjV0bzmtxtKzDsDLCxo5VgIM6UI0sFPwl3B9ji5o80pjtcOwa4U7DX rTm1e+a3Q3iSDWTA1jH2VUxsM/mBWEdpKFWZHkt9u4FYSB8bltOMPvvuR6RfdnQ9oE7grP Dmu7x3q2h9eEwGAFpV/U5jojyMyX9UY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1695369999; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=3QG+Cze+W0LpO1aDFCtgFLHS4SODZxsd/R/X5eIOTlU=; b=gmwV4JxQlf2vKildHti7H7hkuL2p+5TVGx5H4GNtJdTiifsS19PFTdlL4bc1ui9KBPCMAo zXG3/ru7KMV/IgBA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 43B4913597; Fri, 22 Sep 2023 08:06:39 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id n/+oDw9LDWXuMQAAMHmgww (envelope-from ); Fri, 22 Sep 2023 08:06:39 +0000 From: Thomas Zimmermann To: mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, arnd@arndb.de, deller@gmx.de, javierm@redhat.com Cc: linuxppc-dev@lists.ozlabs.org, linux-fbdev@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, sparclinux@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arch@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v5 0/5] ppc, fbdev: Clean up fbdev mmap helper Date: Fri, 22 Sep 2023 10:04:54 +0200 Message-ID: <20230922080636.26762-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Clean up and rename fb_pgprotect() to work without struct file. Then refactor the implementation for PowerPC. This change has been discussed at [1] in the context of refactoring fbdev's mmap code. The first two patches update fbdev and replace fbdev's fb_pgprotect() with pgprot_framebuffer() on all architectures. The new helper's stream- lined interface enables more refactoring within fbdev's mmap implementation. Patches 3 to 5 adapt PowerPC's internal interfaces to provide phys_mem_access_prot() that works without struct file. Neither the architecture code or fbdev helpers need the parameter. v5: * improve commit descriptions (Javier) * add missing tags (Geert) v4: * fix commit message (Christophe) v3: * rename fb_pgrotect() to pgprot_framebuffer() (Arnd) v2: * reorder patches to simplify merging (Michael) [1] https://lore.kernel.org/linuxppc-dev/5501ba80-bdb0-6344-16b0-0466a950f82c@suse.com/ Thomas Zimmermann (5): fbdev: Avoid file argument in fb_pgprotect() fbdev: Replace fb_pgprotect() with pgprot_framebuffer() arch/powerpc: Remove trailing whitespaces arch/powerpc: Remove file parameter from phys_mem_access_prot code arch/powerpc: Call internal __phys_mem_access_prot() in fbdev code arch/ia64/include/asm/fb.h | 15 +++++++-------- arch/m68k/include/asm/fb.h | 19 ++++++++++--------- arch/mips/include/asm/fb.h | 11 +++++------ arch/powerpc/include/asm/book3s/pgtable.h | 10 ++++++++-- arch/powerpc/include/asm/fb.h | 13 +++++-------- arch/powerpc/include/asm/machdep.h | 13 ++++++------- arch/powerpc/include/asm/nohash/pgtable.h | 10 ++++++++-- arch/powerpc/include/asm/pci.h | 4 +--- arch/powerpc/kernel/pci-common.c | 3 +-- arch/powerpc/mm/mem.c | 8 ++++---- arch/sparc/include/asm/fb.h | 15 +++++++++------ arch/x86/include/asm/fb.h | 10 ++++++---- arch/x86/video/fbdev.c | 15 ++++++++------- drivers/video/fbdev/core/fb_chrdev.c | 3 ++- include/asm-generic/fb.h | 12 ++++++------ 15 files changed, 86 insertions(+), 75 deletions(-) base-commit: f8d21cb17a99b75862196036bb4bb93ee9637b74