From mboxrd@z Thu Jan 1 00:00:00 1970 From: 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> 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> Cc: Russell King , Christoph Hellwig , Paul Mundt , James Bottomley , James Bottomley To: linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-parisc@vger.kernel.org Return-path: In-Reply-To: <1253228821-4700-3-git-send-email-James.Bottomley@suse.de> Sender: linux-arch-owner@vger.kernel.org List-Id: linux-fsdevel.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) -- 1.6.3.3