From patchwork Thu Jan 13 09:05:34 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3/4, V2] sparc/leon: Make mmu_inval_dma_area flush dcache for LEONs without snooping enabled. Date: Wed, 12 Jan 2011 23:05:34 -0000 From: Kristoffer Glembo X-Patchwork-Id: 78698 Message-Id: <1294909535-6290-4-git-send-email-kristoffer@gaisler.com> To: sparclinux@vger.kernel.org Cc: sam@ravnborg.org, davem@davemloft.net Signed-off-by: Kristoffer Glembo --- arch/sparc/kernel/ioport.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 1b9f07c..699120a 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -50,10 +50,14 @@ #include #include -#ifdef CONFIG_SPARC_LEON -#define mmu_inval_dma_area(p, l) leon_flush_dcache_all() -#else +#ifndef CONFIG_SPARC_LEON #define mmu_inval_dma_area(p, l) /* Anton pulled it out for 2.4.0-xx */ +#else +static inline void mmu_inval_dma_area(unsigned long va, unsigned long len) +{ + if (!sparc_leon3_snooping_enabled()) + leon_flush_dcache_all(); +} #endif static struct resource *_sparc_find_resource(struct resource *r,