From patchwork Sun May 10 07:55:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11538873 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0B654186E for ; Sun, 10 May 2020 07:57:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E84952495C for ; Sun, 10 May 2020 07:57:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="VdXdviLy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729434AbgEJH5X (ORCPT ); Sun, 10 May 2020 03:57:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38414 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729321AbgEJH4u (ORCPT ); Sun, 10 May 2020 03:56:50 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D7410C061A0E; Sun, 10 May 2020 00:56:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=fx6bBrPOGEjXhNeaz51guyTlixZC0l8IQKU5XAHGw70=; b=VdXdviLyJyWpWRc0iLUjbpAAiT 6IgZhpMGojIMsz7ZsCzDu4V1w3B9lfosjCLFz07LlOtWg2rgoqcMialU+OSgrMY05gAyqdKiuWqkJ r5zvHgHeHt+sDd1mH+1/9hqGLX8fSyUhUEqwkCj5Idqjc7uLLoBqiyyqX2eR1W1kNrYLTklc3ZqMS eN8oRNeJZiG/VKXC2qEEIa3AsTWctz4fRspf/uAtCThMecqTWXoQ+3w2w8ekYoi2HA0WWvMQAlQQm zDKaX7FQx4uXPm2Rc1hUFvcPNgaBNVXP+G/mWysvyzP3KQWeTdd7jpx7vamt1IiHjUdrs9EJZRMRV LzzsE/Cw==; Received: from [2001:4bb8:180:9d3f:c70:4a89:bc61:2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jXgp9-0001Bf-B4; Sun, 10 May 2020 07:56:35 +0000 From: Christoph Hellwig To: Andrew Morton , Arnd Bergmann , Roman Zippel Cc: Jessica Yu , Michal Simek , x86@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 26/31] m68k: implement flush_icache_user_range Date: Sun, 10 May 2020 09:55:05 +0200 Message-Id: <20200510075510.987823-27-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200510075510.987823-1-hch@lst.de> References: <20200510075510.987823-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Rename the current flush_icache_range to flush_icache_user_range as per commit ae92ef8a4424 ("PATCH] flush icache in correct context") there seems to be an assumption that it operates on user addresses. Add a flush_icache_range around it that for now is a no-op. Signed-off-by: Christoph Hellwig Acked-by: Geert Uytterhoeven --- arch/m68k/include/asm/cacheflush_mm.h | 2 ++ arch/m68k/mm/cache.c | 7 ++++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/m68k/include/asm/cacheflush_mm.h b/arch/m68k/include/asm/cacheflush_mm.h index 95376bf84faa5..1ac55e7b47f01 100644 --- a/arch/m68k/include/asm/cacheflush_mm.h +++ b/arch/m68k/include/asm/cacheflush_mm.h @@ -257,6 +257,8 @@ static inline void __flush_page_to_ram(void *vaddr) extern void flush_icache_user_page(struct vm_area_struct *vma, struct page *page, unsigned long addr, int len); extern void flush_icache_range(unsigned long address, unsigned long endaddr); +extern void flush_icache_user_range(unsigned long address, + unsigned long endaddr); static inline void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, diff --git a/arch/m68k/mm/cache.c b/arch/m68k/mm/cache.c index 99057cd5ff7f1..7915be3a09712 100644 --- a/arch/m68k/mm/cache.c +++ b/arch/m68k/mm/cache.c @@ -73,7 +73,7 @@ static unsigned long virt_to_phys_slow(unsigned long vaddr) /* Push n pages at kernel virtual address and clear the icache */ /* RZ: use cpush %bc instead of cpush %dc, cinv %ic */ -void flush_icache_range(unsigned long address, unsigned long endaddr) +void flush_icache_user_range(unsigned long address, unsigned long endaddr) { if (CPU_IS_COLDFIRE) { unsigned long start, end; @@ -104,6 +104,11 @@ void flush_icache_range(unsigned long address, unsigned long endaddr) : "di" (FLUSH_I)); } } + +void flush_icache_range(unsigned long address, unsigned long endaddr) +{ + flush_icache_user_range(address, endaddr); +} EXPORT_SYMBOL(flush_icache_range); void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,