diff mbox

powerpc/iommu: Rename iommu_[un]map_sg functions

Message ID 20141106123223.GL10744@8bytes.org (mailing list archive)
State Not Applicable
Headers show

Commit Message

Joerg Roedel Nov. 6, 2014, 12:32 p.m. UTC 
Hi,

here is a patch that fixes a compile failure on powerpc with the recent
iommu tree. If this patch is okay with you guys I'd like to carry it in
the iommu tree too.

Thanks,

	Joerg

From ff39a0301d01ad24f7097718b4ec8215eb0c1141 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Wed, 5 Nov 2014 15:28:30 +0100
Subject: [PATCH] powerpc/iommu: Rename iommu_[un]map_sg functions

The IOMMU-API gained support for a new iommu_map_sg
function. This causes compile failures on powerpc because
the function name is already globally used there.
This patch renames adds a ppc_ prefix to these functions to
solve the compile problem.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 arch/powerpc/include/asm/iommu.h    | 17 ++++++++++-------
 arch/powerpc/kernel/dma-iommu.c     |  8 ++++----
 arch/powerpc/kernel/iommu.c         | 16 ++++++++--------
 arch/powerpc/platforms/cell/iommu.c |  9 +++++----
 4 files changed, 27 insertions(+), 23 deletions(-)
diff mbox

Patch

diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h
index 42632c7..9cfa370 100644
--- a/arch/powerpc/include/asm/iommu.h
+++ b/arch/powerpc/include/asm/iommu.h
@@ -137,13 +137,16 @@  static inline void set_iommu_table_base_and_group(struct device *dev,
 	iommu_add_device(dev);
 }
 
-extern int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
-			struct scatterlist *sglist, int nelems,
-			unsigned long mask, enum dma_data_direction direction,
-			struct dma_attrs *attrs);
-extern void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist,
-			   int nelems, enum dma_data_direction direction,
-			   struct dma_attrs *attrs);
+extern int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl,
+			    struct scatterlist *sglist, int nelems,
+			    unsigned long mask,
+			    enum dma_data_direction direction,
+			    struct dma_attrs *attrs);
+extern void ppc_iommu_unmap_sg(struct iommu_table *tbl,
+			       struct scatterlist *sglist,
+			       int nelems,
+			       enum dma_data_direction direction,
+			       struct dma_attrs *attrs);
 
 extern void *iommu_alloc_coherent(struct device *dev, struct iommu_table *tbl,
 				  size_t size, dma_addr_t *dma_handle,
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 54d0116..4c68bfe 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -60,16 +60,16 @@  static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist,
 			    int nelems, enum dma_data_direction direction,
 			    struct dma_attrs *attrs)
 {
-	return iommu_map_sg(dev, get_iommu_table_base(dev), sglist, nelems,
-			    device_to_mask(dev), direction, attrs);
+	return ppc_iommu_map_sg(dev, get_iommu_table_base(dev), sglist, nelems,
+				device_to_mask(dev), direction, attrs);
 }
 
 static void dma_iommu_unmap_sg(struct device *dev, struct scatterlist *sglist,
 		int nelems, enum dma_data_direction direction,
 		struct dma_attrs *attrs)
 {
-	iommu_unmap_sg(get_iommu_table_base(dev), sglist, nelems, direction,
-		       attrs);
+	ppc_iommu_unmap_sg(get_iommu_table_base(dev), sglist, nelems,
+			   direction, attrs);
 }
 
 /* We support DMA to/from any memory page via the iommu */
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index a10642a..a83cf5e 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -428,10 +428,10 @@  static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
 		ppc_md.tce_flush(tbl);
 }
 
-int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
-		 struct scatterlist *sglist, int nelems,
-		 unsigned long mask, enum dma_data_direction direction,
-		 struct dma_attrs *attrs)
+int ppc_iommu_map_sg(struct device *dev, struct iommu_table *tbl,
+		     struct scatterlist *sglist, int nelems,
+		     unsigned long mask, enum dma_data_direction direction,
+		     struct dma_attrs *attrs)
 {
 	dma_addr_t dma_next = 0, dma_addr;
 	struct scatterlist *s, *outs, *segstart;
@@ -539,7 +539,7 @@  int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 
 	DBG("mapped %d elements:\n", outcount);
 
-	/* For the sake of iommu_unmap_sg, we clear out the length in the
+	/* For the sake of ppc_iommu_unmap_sg, we clear out the length in the
 	 * next entry of the sglist if we didn't fill the list completely
 	 */
 	if (outcount < incount) {
@@ -572,9 +572,9 @@  int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
 }
 
 
-void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist,
-		int nelems, enum dma_data_direction direction,
-		struct dma_attrs *attrs)
+void ppc_iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist,
+			int nelems, enum dma_data_direction direction,
+			struct dma_attrs *attrs)
 {
 	struct scatterlist *sg;
 
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 2b90ff8..c7c8720 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -621,8 +621,9 @@  static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
 	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
 		return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs);
 	else
-		return iommu_map_sg(dev, cell_get_iommu_table(dev), sg, nents,
-				    device_to_mask(dev), direction, attrs);
+		return ppc_iommu_map_sg(dev, cell_get_iommu_table(dev), sg,
+					nents, device_to_mask(dev),
+					direction, attrs);
 }
 
 static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
@@ -632,8 +633,8 @@  static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
 	if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
 		dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs);
 	else
-		iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents, direction,
-			       attrs);
+		ppc_iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents,
+				   direction, attrs);
 }
 
 static int dma_fixed_dma_supported(struct device *dev, u64 mask)