[PATCH 5/9] x86: use dma_map_range when allocating PCI GART memory

[Ian Campbell <ian.campbell@citrix.com>]

This function is intended to replaces is_buffer_dma_capable with a
more generic interface.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: x86@kernel.org
---
 arch/x86/kernel/pci-gart_64.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 1e8920d..eb043bd 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -190,14 +190,16 @@ static void iommu_full(struct device *dev, size_t size, int dir)
 static inline int
 need_iommu(struct device *dev, unsigned long addr, size_t size)
 {
+	dma_addr_t dma_addr;
 	return force_iommu ||
-		!is_buffer_dma_capable(*dev->dma_mask, addr, size);
+	       !dma_map_range(dev, *dev->dma_mask, addr, size, &dma_addr);
 }
 
 static inline int
 nonforced_iommu(struct device *dev, unsigned long addr, size_t size)
 {
-	return !is_buffer_dma_capable(*dev->dma_mask, addr, size);
+	dma_addr_t dma_addr;
+	return !dma_map_range(dev, *dev->dma_mask, addr, size, &dma_addr);
 }
 
 /* Map a single continuous physical area into the IOMMU.
-- 
1.5.6.5