powerpc/cell: Extract duplicated IOPTE_* to <asm/iommu.h>

Both arch/powerpc/platforms/cell/iommu.c and arch/powerpc/platforms/ps3/mm.c
contain the same Cell IOMMU page table entry definitions. Extract them and move
them to <asm/iommu.h>, while adding a CBE_ prefix.
This also allows them to be used by drivers.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

3 files changed, 14 insertions, 18 deletions

diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 9a2b6d94861..017b6142cac 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -24,6 +24,7 @@
 #include <linux/lmb.h>
 
 #include <asm/firmware.h>
+#include <asm/iommu.h>
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <asm/lv1call.h>
@@ -1001,7 +1002,8 @@ static int dma_sb_region_create_linear(struct ps3_dma_region *r)
 		if (len > r->len)
 			len = r->len;
 		result = dma_sb_map_area(r, virt_addr, len, &tmp,
-			IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
+			CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_SO_RW |
+			CBE_IOPTE_M);
 		BUG_ON(result);
 	}
 
@@ -1014,7 +1016,8 @@ static int dma_sb_region_create_linear(struct ps3_dma_region *r)
 		else
 			len -= map.rm.size - r->offset;
 		result = dma_sb_map_area(r, virt_addr, len, &tmp,
-			IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
+			CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_SO_RW |
+			CBE_IOPTE_M);
 		BUG_ON(result);
 	}
 
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index 136aa0637d9..9a196a88eda 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -232,14 +232,4 @@ int ps3_repository_read_spu_resource_id(unsigned int res_index,
 int ps3_repository_read_vuart_av_port(unsigned int *port);
 int ps3_repository_read_vuart_sysmgr_port(unsigned int *port);
 
-/* Page table entries */
-#define IOPTE_PP_W		0x8000000000000000ul /* protection: write */
-#define IOPTE_PP_R		0x4000000000000000ul /* protection: read */
-#define IOPTE_M			0x2000000000000000ul /* coherency required */
-#define IOPTE_SO_R		0x1000000000000000ul /* ordering: writes */
-#define IOPTE_SO_RW             0x1800000000000000ul /* ordering: r & w */
-#define IOPTE_RPN_Mask		0x07fffffffffff000ul /* RPN */
-#define IOPTE_H			0x0000000000000800ul /* cache hint */
-#define IOPTE_IOID_Mask		0x00000000000007fful /* ioid */
-
 #endif
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 9a73d023863..9fead0faf38 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -27,6 +27,7 @@
 #include <asm/udbg.h>
 #include <asm/lv1call.h>
 #include <asm/firmware.h>
+#include <asm/iommu.h>
 
 #include "platform.h"
 
@@ -531,7 +532,8 @@ static void * ps3_alloc_coherent(struct device *_dev, size_t size,
 	}
 
 	result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle,
-			     IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
+			     CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
+			     CBE_IOPTE_SO_RW | CBE_IOPTE_M);
 
 	if (result) {
 		pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
@@ -575,7 +577,8 @@ static dma_addr_t ps3_sb_map_page(struct device *_dev, struct page *page,
 
 	result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
 			     &bus_addr,
-			     IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW | IOPTE_M);
+			     CBE_IOPTE_PP_R | CBE_IOPTE_PP_W |
+			     CBE_IOPTE_SO_RW | CBE_IOPTE_M);
 
 	if (result) {
 		pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
@@ -596,16 +599,16 @@ static dma_addr_t ps3_ioc0_map_page(struct device *_dev, struct page *page,
 	u64 iopte_flag;
 	void *ptr = page_address(page) + offset;
 
-	iopte_flag = IOPTE_M;
+	iopte_flag = CBE_IOPTE_M;
 	switch (direction) {
 	case DMA_BIDIRECTIONAL:
-		iopte_flag |= IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW;
+		iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW;
 		break;
 	case DMA_TO_DEVICE:
-		iopte_flag |= IOPTE_PP_R | IOPTE_SO_R;
+		iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_SO_R;
 		break;
 	case DMA_FROM_DEVICE:
-		iopte_flag |= IOPTE_PP_W | IOPTE_SO_RW;
+		iopte_flag |= CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW;
 		break;
 	default:
 		/* not happned */