From patchwork Mon Sep 11 13:08:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 722329 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 E4A8FCA0EC8 for ; Mon, 11 Sep 2023 22:26:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238592AbjIKWZA (ORCPT ); Mon, 11 Sep 2023 18:25:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36628 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237698AbjIKNKo (ORCPT ); Mon, 11 Sep 2023 09:10:44 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C80E0E5; Mon, 11 Sep 2023 06:10:39 -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-out2.suse.de (Postfix) with ESMTPS id 7F4371F38D; Mon, 11 Sep 2023 13:10:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1694437838; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=ASbyR99UMd/GpgOphqagCa5xz32ee14KtoXTx/EckP4=; b=avGBHvPPQjOqqnxwk3IMg3tHBklSOmTgAjIAQSXLxes6rAwFfIH5I9/uOVNorKNJZX0/ip oHY9gWPgPTISWjJZeu8z2tIz7rZwILBO6YKJ2qn5cwaiwh0A1db0p/tjxerQALD/1LzYuq dDSCnMYHHSKUmskMVRHQnO9lNj/hhnU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1694437838; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=ASbyR99UMd/GpgOphqagCa5xz32ee14KtoXTx/EckP4=; b=CUXZP9mjsSzuyAShgY03xkAoSrCLTTPiZcpRkO9s6Qu6lHZH0uN5fwZt5DhP1WSVHLMZwn c3qIeir8UQ2tRCCg== 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 377E213780; Mon, 11 Sep 2023 13:10:38 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id NlWuDM4R/2SCIwAAMHmgww (envelope-from ); Mon, 11 Sep 2023 13:10:38 +0000 From: Thomas Zimmermann To: mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, arnd@arndb.de, deller@gmx.de 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 v3 0/5] ppc, fbdev: Clean up fbdev mmap helper Date: Mon, 11 Sep 2023 15:08:30 +0200 Message-ID: <20230911131033.27745-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@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. 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 fb_pgprot_device() 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(-)