From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Thu, 7 Apr 2016 19:57:04 +0100 Subject: [PATCH v6 1/2] ARM: dma-mapping: Don't use outer_flush_range when the L2C is coherent In-Reply-To: <1459415380-18004-2-git-send-email-gregory.clement@free-electrons.com> References: <1459415380-18004-1-git-send-email-gregory.clement@free-electrons.com> <1459415380-18004-2-git-send-email-gregory.clement@free-electrons.com> Message-ID: <20160407185704.GH19428@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Mar 31, 2016 at 11:09:39AM +0200, Gregory CLEMENT wrote: > diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c > index deac58d5f1f7..1538bb293e90 100644 > --- a/arch/arm/mm/dma-mapping.c > +++ b/arch/arm/mm/dma-mapping.c > @@ -61,7 +61,7 @@ struct arm_dma_free_args { > > struct arm_dma_allocator { > void *(*alloc)(struct arm_dma_alloc_args *args, > - struct page **ret_page); > + struct page **ret_page, bool is_coherent); This should be named "l2_coherent" because it controls whether L2 cache flushing is done: L1 cache flushing calls are still present. -- RMK's Patch system: http://www.arm.linux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.