From: Glauber Costa Date: Tue, 8 Apr 2008 16:20:46 +0000 (-0300) Subject: x86: Add flush_write_buffers in nommu functions X-Git-Tag: v3.12-rc1~22008^2~25 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e4dcdd6b4fa33efee94e89cccd75e871c570c510;p=kernel%2Fkernel-generic.git x86: Add flush_write_buffers in nommu functions This patch adds flush_write_buffers() in some functions of pci-nommu_64.c They are added anywhere i386 would also have it. This is not a problem for x86_64, since flush_rite_buffers() an nop for it. Signed-off-by: Glauber Costa Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- diff --git a/arch/x86/kernel/pci-nommu_64.c b/arch/x86/kernel/pci-nommu_64.c index a4e8ccf..1da9cf9 100644 --- a/arch/x86/kernel/pci-nommu_64.c +++ b/arch/x86/kernel/pci-nommu_64.c @@ -32,6 +32,7 @@ nommu_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, dma_addr_t bus = paddr; if (!check_addr("map_single", hwdev, bus, size)) return bad_dma_address; + flush_write_buffers(); return bus; } @@ -64,6 +65,7 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, return 0; s->dma_length = s->length; } + flush_write_buffers(); return nents; }