linux-kernel - [PATCH 6/9] x86/iommu: change Calgary to use dma

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Date:	Mon, 22 Sep 2008 20:21:18 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	iommu@...ts.linux-foundation.org
CC:	David Woodhouse <dwmw2@...radead.org>,
	Muli Ben-Yehuda <muli@...ibm.com>,
	Amit Shah <amit.shah@...ranet.com>,
	Ingo Molnar <mingo@...hat.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 6/9] x86/iommu: change Calgary to use dma_ops register interface

Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
 arch/x86/kernel/pci-calgary_64.c |   21 +++++++++++----------
 1 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index fe7695e..e2f2f60 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -525,6 +525,15 @@ static void calgary_free_coherent(struct device *dev, size_t size,
 	free_pages((unsigned long)vaddr, get_order(size));
 }
 
+static int calgary_device_supported(struct device *dev)
+{
+	struct iommu_table *tbl;
+
+	tbl = find_iommu_table(dev);
+
+	return translation_enabled(tbl);
+}
+
 static struct dma_mapping_ops calgary_dma_ops = {
 	.alloc_coherent = calgary_alloc_coherent,
 	.free_coherent = calgary_free_coherent,
@@ -532,6 +541,7 @@ static struct dma_mapping_ops calgary_dma_ops = {
 	.unmap_single = calgary_unmap_single,
 	.map_sg = calgary_map_sg,
 	.unmap_sg = calgary_unmap_sg,
+	.device_supported = calgary_device_supported,
 };
 
 static inline void __iomem * busno_to_bbar(unsigned char num)
@@ -1223,16 +1233,6 @@ static int __init calgary_init(void)
 			goto error;
 	} while (1);
 
-	dev = NULL;
-	for_each_pci_dev(dev) {
-		struct iommu_table *tbl;
-
-		tbl = find_iommu_table(&dev->dev);
-
-		if (translation_enabled(tbl))
-			dev->dev.archdata.dma_ops = &calgary_dma_ops;
-	}
-
 	return ret;
 
 error:
@@ -1535,6 +1535,7 @@ int __init calgary_iommu_init(void)
 
 	force_iommu = 1;
 	bad_dma_address = 0x0;
+	x86_register_dma_ops(&calgary_dma_ops, DMA_OPS_TYPE_HW);
 	/* dma_ops is set to swiotlb or nommu */
 	if (!dma_ops)
 		dma_ops = &nommu_dma_ops;
-- 
1.5.6.4


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