linux-kernel - [PATCH 05/11] x86: use dma_map_range when allocating PCI GART memory

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Date:	Mon, 1 Jun 2009 16:32:57 +0100
From:	Ian Campbell <ian.campbell@...rix.com>
To:	<linux-kernel@...r.kernel.org>
CC:	Ian Campbell <ian.campbell@...rix.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Jeremy Fitzhardinge <jeremy@...p.org>, <x86@...nel.org>
Subject: [PATCH 05/11] x86: use dma_map_range when allocating PCI GART memory

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

Signed-off-by: Ian Campbell <ian.campbell@...rix.com>
Cc: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc: Jeremy Fitzhardinge <jeremy@...p.org>
Cc: x86@...nel.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

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