From patchwork Thu Sep 17 23:06:58 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Bottomley X-Patchwork-Id: 48419 X-Patchwork-Delegate: kyle@mcmartin.ca Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n8HN7X48002998 for ; Thu, 17 Sep 2009 23:07:33 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753681AbZIQXH1 (ORCPT ); Thu, 17 Sep 2009 19:07:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753809AbZIQXH0 (ORCPT ); Thu, 17 Sep 2009 19:07:26 -0400 Received: from cantor.suse.de ([195.135.220.2]:40305 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753670AbZIQXHY (ORCPT ); Thu, 17 Sep 2009 19:07:24 -0400 Received: from relay1.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id 3BCD593987; Fri, 18 Sep 2009 01:07:27 +0200 (CEST) From: James Bottomley To: linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-parisc@vger.kernel.org Cc: Russell King , Christoph Hellwig , Paul Mundt , James Bottomley , James Bottomley Subject: [PATCH 3/6] arm: add mm API for DMA to vmalloc/vmap areas Date: Thu, 17 Sep 2009 18:06:58 -0500 Message-Id: <1253228821-4700-4-git-send-email-James.Bottomley@suse.de> X-Mailer: git-send-email 1.6.3.3 In-Reply-To: <1253228821-4700-3-git-send-email-James.Bottomley@suse.de> References: <1253228821-4700-1-git-send-email-James.Bottomley@suse.de> <1253228821-4700-2-git-send-email-James.Bottomley@suse.de> <1253228821-4700-3-git-send-email-James.Bottomley@suse.de> Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: James Bottomley ARM cannot prevent cache movein, so this patch implements both the flush and invalidate pieces of the API. Signed-off-by: James Bottomley --- arch/arm/include/asm/cacheflush.h | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 1a711ea..1104ee9 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -436,6 +436,16 @@ static inline void flush_kernel_dcache_page(struct page *page) if ((cache_is_vivt() || cache_is_vipt_aliasing()) && !PageHighMem(page)) __cpuc_flush_dcache_page(page_address(page)); } +static inline void flush_kernel_dcache_addr(void *addr) +{ + if ((cache_is_vivt() || cache_is_vipt_aliasing())) + __cpuc_flush_dcache_page(addr); +} +static inline void invalidate_kernel_dcache_addr(void *addr) +{ + if ((cache_is_vivt() || cache_is_vipt_aliasing())) + __cpuc_flush_dcache_page(addr); +} #define flush_dcache_mmap_lock(mapping) \ spin_lock_irq(&(mapping)->tree_lock)