addr = page_address(page);
if (addr)
- *handle = page_to_dma(dev, page);
+ *handle = pfn_to_dma(dev, page_to_pfn(page));
return addr;
}
if (!arch_is_coherent())
__dma_free_remap(cpu_addr, size);
- __dma_free_buffer(dma_to_page(dev, handle), size);
+ __dma_free_buffer(pfn_to_page(dma_to_pfn(dev, handle)), size);
}
EXPORT_SYMBOL(dma_free_coherent);
struct scatterlist *s;
int i, j;
+ BUG_ON(!valid_dma_direction(dir));
+
for_each_sg(sg, s, nents, i) {
- s->dma_address = dma_map_page(dev, sg_page(s), s->offset,
+ s->dma_address = __dma_map_page(dev, sg_page(s), s->offset,
s->length, dir);
if (dma_mapping_error(dev, s->dma_address))
goto bad_mapping;
}
+ debug_dma_map_sg(dev, sg, nents, nents, dir);
return nents;
bad_mapping:
for_each_sg(sg, s, i, j)
- dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir);
+ __dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir);
return 0;
}
EXPORT_SYMBOL(dma_map_sg);
struct scatterlist *s;
int i;
+ debug_dma_unmap_sg(dev, sg, nents, dir);
+
for_each_sg(sg, s, nents, i)
- dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir);
+ __dma_unmap_page(dev, sg_dma_address(s), sg_dma_len(s), dir);
}
EXPORT_SYMBOL(dma_unmap_sg);
__dma_page_dev_to_cpu(sg_page(s), s->offset,
s->length, dir);
}
+
+ debug_dma_sync_sg_for_cpu(dev, sg, nents, dir);
}
EXPORT_SYMBOL(dma_sync_sg_for_cpu);
__dma_page_cpu_to_dev(sg_page(s), s->offset,
s->length, dir);
}
+
+ debug_dma_sync_sg_for_device(dev, sg, nents, dir);
}
EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+#define PREALLOC_DMA_DEBUG_ENTRIES 4096
+
+static int __init dma_debug_do_init(void)
+{
+ dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+ return 0;
+}
+fs_initcall(dma_debug_do_init);