diff options
Diffstat (limited to 'drivers/parisc/sba_iommu.c')
-rw-r--r-- | drivers/parisc/sba_iommu.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index 87ad5fd6a7a2..4086f79d58d5 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c | |||
@@ -93,6 +93,8 @@ | |||
93 | 93 | ||
94 | #define DEFAULT_DMA_HINT_REG 0 | 94 | #define DEFAULT_DMA_HINT_REG 0 |
95 | 95 | ||
96 | #define SBA_MAPPING_ERROR (~(dma_addr_t)0) | ||
97 | |||
96 | struct sba_device *sba_list; | 98 | struct sba_device *sba_list; |
97 | EXPORT_SYMBOL_GPL(sba_list); | 99 | EXPORT_SYMBOL_GPL(sba_list); |
98 | 100 | ||
@@ -725,7 +727,7 @@ sba_map_single(struct device *dev, void *addr, size_t size, | |||
725 | 727 | ||
726 | ioc = GET_IOC(dev); | 728 | ioc = GET_IOC(dev); |
727 | if (!ioc) | 729 | if (!ioc) |
728 | return DMA_ERROR_CODE; | 730 | return SBA_MAPPING_ERROR; |
729 | 731 | ||
730 | /* save offset bits */ | 732 | /* save offset bits */ |
731 | offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK; | 733 | offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK; |
@@ -1083,6 +1085,11 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, | |||
1083 | 1085 | ||
1084 | } | 1086 | } |
1085 | 1087 | ||
1088 | static int sba_mapping_error(struct device *dev, dma_addr_t dma_addr) | ||
1089 | { | ||
1090 | return dma_addr == SBA_MAPPING_ERROR; | ||
1091 | } | ||
1092 | |||
1086 | static const struct dma_map_ops sba_ops = { | 1093 | static const struct dma_map_ops sba_ops = { |
1087 | .dma_supported = sba_dma_supported, | 1094 | .dma_supported = sba_dma_supported, |
1088 | .alloc = sba_alloc, | 1095 | .alloc = sba_alloc, |
@@ -1091,6 +1098,7 @@ static const struct dma_map_ops sba_ops = { | |||
1091 | .unmap_page = sba_unmap_page, | 1098 | .unmap_page = sba_unmap_page, |
1092 | .map_sg = sba_map_sg, | 1099 | .map_sg = sba_map_sg, |
1093 | .unmap_sg = sba_unmap_sg, | 1100 | .unmap_sg = sba_unmap_sg, |
1101 | .mapping_error = sba_mapping_error, | ||
1094 | }; | 1102 | }; |
1095 | 1103 | ||
1096 | 1104 | ||