From patchwork Fri Sep 1 14:16:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13372659 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 77C34CA0FF1 for ; Fri, 1 Sep 2023 14:27:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350001AbjIAO1K (ORCPT ); Fri, 1 Sep 2023 10:27:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349987AbjIAO1J (ORCPT ); Fri, 1 Sep 2023 10:27:09 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DCC6C10EC; Fri, 1 Sep 2023 07:27:03 -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 8A3711F45F; Fri, 1 Sep 2023 14:27:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1693578422; 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=SMVqqCzAV8qiPumbogFAJyOXqwh0SM5nCA5ErmccYGg=; b=kME+OuUTih9j6/fYa3F86RCxwyCPuM0mFxR9BKD88HFbkY5ie6UCLIwhQYpiBnzNZfmITv Xrga0MJd+/tEHDSoSpUiehw0W4F7UMHkXMgBrcEmquB8v6xHXi9Dt/tG6V+YxUVF8s3C5n UMJ6i9k+v/lD/2CtCb7MV5OXxZ/fnKU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1693578422; 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=SMVqqCzAV8qiPumbogFAJyOXqwh0SM5nCA5ErmccYGg=; b=bEYtom3NU6QRP+oDB1MQGWRXSqHalEw5ogxvYhw3vd6erqPaQb9QlO0Vs2HE7r4aObSFIP vBp4h2Dp4ZtQHLDg== 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 437FB1358B; Fri, 1 Sep 2023 14:27:02 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id tWiCD7b08WQGYAAAMHmgww (envelope-from ); Fri, 01 Sep 2023 14:27:02 +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 0/4] ppc, fbdev: Clean up fbdev mmap helper Date: Fri, 1 Sep 2023 16:16:32 +0200 Message-ID: <20230901142659.31787-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Refactor fb_pgprotect() in PowerPC to work without struct file. Then clean up and rename fb_pgprotect(). This change has been discussed at [1] in the context of refactoring fbdev's mmap code. The first three patches adapt PowerPC's internal interfaces to provide a phys_mem_access_prot() that works without struct file. Neither the architecture code or fbdev helpers need the parameter. Patch 4 replaces fbdev's fb_pgprotect() with fb_pgprot_device() on all architectures. The new helper with its stream-lined interface enables more refactoring within fbdev's mmap implementation. [1] https://lore.kernel.org/linuxppc-dev/5501ba80-bdb0-6344-16b0-0466a950f82c@suse.com/ Thomas Zimmermann (4): 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 fbdev: Replace fb_pgprotect() with fb_pgprot_device() 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(-)