linux-kernel - [PATCH 03/11] swiotlb: Rename SG_ENT_PHYS_ADDRESS to SG_ENT_BUS

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Date:	Thu, 18 Dec 2008 23:11:14 -0600
From:	Becky Bruce <beckyb@...nel.crashing.org>
To:	mingo@...e.hu, jeremy@...p.org
Cc:	fujita.tomonori@....ntt.co.jp, linux-kernel@...r.kernel.org,
	ian.campbell@...rix.com, jbeulich@...ell.com, joerg.roedel@....com,
	benh@...nel.crashing.org, Becky Bruce <beckyb@...nel.crashing.org>
Subject: [PATCH 03/11] swiotlb: Rename SG_ENT_PHYS_ADDRESS to SG_ENT_BUS_ADDRESS

Also add hwdev argument - some platforms will need this to
calculate an actual bus address.

Signed-off-by: Becky Bruce <beckyb@...nel.crashing.org>
---
 lib/swiotlb.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 9b89a9d..add1f92 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -36,7 +36,7 @@
 #define OFFSET(val,align) ((unsigned long)	\
 	                   ( (val) & ( (align) - 1)))
 
-#define SG_ENT_PHYS_ADDRESS(sg)	virt_to_bus(sg_virt(sg))
+#define SG_ENT_BUS_ADDRESS(hwdev, sg)	virt_to_bus(sg_virt(sg))
 
 /*
  * Maximum allowable number of contiguous slabs to map,
@@ -765,7 +765,7 @@ swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 	BUG_ON(dir == DMA_NONE);
 
 	for_each_sg(sgl, sg, nelems, i) {
-		if (sg->dma_address != SG_ENT_PHYS_ADDRESS(sg))
+		if (sg->dma_address != SG_ENT_BUS_ADDRESS(hwdev, sg))
 			unmap_single(hwdev, bus_to_virt(sg->dma_address),
 				     sg->dma_length, dir);
 		else if (dir == DMA_FROM_DEVICE)
@@ -798,7 +798,7 @@ swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sgl,
 	BUG_ON(dir == DMA_NONE);
 
 	for_each_sg(sgl, sg, nelems, i) {
-		if (sg->dma_address != SG_ENT_PHYS_ADDRESS(sg))
+		if (sg->dma_address != SG_ENT_BUS_ADDRESS(hwdev, sg))
 			sync_single(hwdev, bus_to_virt(sg->dma_address),
 				    sg->dma_length, dir, target);
 		else if (dir == DMA_FROM_DEVICE)
-- 
1.5.6.5

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