From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: [PATCHv2 3/5] arm: add mm API for DMA to vmalloc/vmap areas Date: Wed, 23 Dec 2009 15:22:23 -0600 Message-ID: <1261603345-2494-4-git-send-email-James.Bottomley@suse.de> References: <1261603345-2494-1-git-send-email-James.Bottomley@suse.de> <1261603345-2494-2-git-send-email-James.Bottomley@suse.de> <1261603345-2494-3-git-send-email-James.Bottomley@suse.de> Return-path: Received: from cantor2.suse.de ([195.135.220.15]:58592 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757185AbZLWVWz (ORCPT ); Wed, 23 Dec 2009 16:22:55 -0500 In-Reply-To: <1261603345-2494-3-git-send-email-James.Bottomley@suse.de> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-arch@vger.kernel.org Cc: linux-parisc@vger.kernel.org, Christoph Hellwig , Russell King , Paul Mundt , 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 730aefc..4ae503c 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -432,6 +432,16 @@ static inline void __flush_icache_all(void) : "r" (0)); #endif } +static inline void flush_kernel_vmap_range(void *addr, int size) +{ + if ((cache_is_vivt() || cache_is_vipt_aliasing())) + __cpuc_flush_dcache_area(addr, (size_t)size); +} +static inline void invalidate_kernel_vmap_range(void *addr, int size) +{ + if ((cache_is_vivt() || cache_is_vipt_aliasing())) + __cpuc_flush_dcache_area(addr, (size_t)size); +} #define ARCH_HAS_FLUSH_ANON_PAGE static inline void flush_anon_page(struct vm_area_struct *vma, -- 1.6.5