parisc: ->mapping_error
DMA_ERROR_CODE already went away in linux-next, but parisc unfortunately
added a new instance of it without any review as far as I can tell.
Move the two iommu drivers to report errors through ->mapping_error.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Helge Deller <deller@gmx.de>
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 9a2a895..2b16282 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -20,8 +20,6 @@
** flush/purge and allocate "regular" cacheable pages for everything.
*/
-#define DMA_ERROR_CODE (~(dma_addr_t)0)
-
#ifdef CONFIG_PA11
extern const struct dma_map_ops pcxl_dma_ops;
extern const struct dma_map_ops pcx_dma_ops;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 56c93f0..6aa1e7f 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -110,6 +110,8 @@
#define CMD_TLB_DIRECT_WRITE 35 /* IO_COMMAND for I/O TLB Writes */
#define CMD_TLB_PURGE 33 /* IO_COMMAND to Purge I/O TLB entry */
+#define CCIO_MAPPING_ERROR (~(dma_addr_t)0)
+
struct ioa_registers {
/* Runway Supervisory Set */
int32_t unused1[12];
@@ -742,7 +744,7 @@
BUG_ON(!dev);
ioc = GET_IOC(dev);
if (!ioc)
- return DMA_ERROR_CODE;
+ return CCIO_MAPPING_ERROR;
BUG_ON(size <= 0);
@@ -1023,6 +1025,11 @@
DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
}
+static int ccio_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == CCIO_MAPPING_ERROR;
+}
+
static const struct dma_map_ops ccio_ops = {
.dma_supported = ccio_dma_supported,
.alloc = ccio_alloc,
@@ -1031,6 +1038,7 @@
.unmap_page = ccio_unmap_page,
.map_sg = ccio_map_sg,
.unmap_sg = ccio_unmap_sg,
+ .mapping_error = ccio_mapping_error,
};
#ifdef CONFIG_PROC_FS
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 87ad5fd..4086f79 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -93,6 +93,8 @@
#define DEFAULT_DMA_HINT_REG 0
+#define SBA_MAPPING_ERROR (~(dma_addr_t)0)
+
struct sba_device *sba_list;
EXPORT_SYMBOL_GPL(sba_list);
@@ -725,7 +727,7 @@
ioc = GET_IOC(dev);
if (!ioc)
- return DMA_ERROR_CODE;
+ return SBA_MAPPING_ERROR;
/* save offset bits */
offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK;
@@ -1083,6 +1085,11 @@
}
+static int sba_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return dma_addr == SBA_MAPPING_ERROR;
+}
+
static const struct dma_map_ops sba_ops = {
.dma_supported = sba_dma_supported,
.alloc = sba_alloc,
@@ -1091,6 +1098,7 @@
.unmap_page = sba_unmap_page,
.map_sg = sba_map_sg,
.unmap_sg = sba_unmap_sg,
+ .mapping_error = sba_mapping_error,
};