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authorJoerg Roedel <joerg.roedel@amd.com>2009-01-09 14:38:50 +0100
committerJoerg Roedel <joerg.roedel@amd.com>2009-03-05 20:35:19 +0100
commit6bfd4498764d6201399849d2e80fda95db7742c0 (patch)
tree71675d02878324a82036e75d3bd0e0457a33e12b /lib/dma-debug.c
parent972aa45ceaf65376f33aa75958fcaefc9e752fa4 (diff)
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dma-debug: add checking for [alloc|free]_coherent
Impact: add debug callbacks for dma_[alloc|free]_coherent Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'lib/dma-debug.c')
-rw-r--r--lib/dma-debug.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 26e40e93e0f..44af837f68e 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -692,3 +692,48 @@ void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
}
EXPORT_SYMBOL(debug_dma_unmap_sg);
+void debug_dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t dma_addr, void *virt)
+{
+ struct dma_debug_entry *entry;
+
+ if (unlikely(global_disable))
+ return;
+
+ if (unlikely(virt == NULL))
+ return;
+
+ entry = dma_entry_alloc();
+ if (!entry)
+ return;
+
+ entry->type = dma_debug_coherent;
+ entry->dev = dev;
+ entry->paddr = virt_to_phys(virt);
+ entry->size = size;
+ entry->dev_addr = dma_addr;
+ entry->direction = DMA_BIDIRECTIONAL;
+
+ add_dma_entry(entry);
+}
+EXPORT_SYMBOL(debug_dma_alloc_coherent);
+
+void debug_dma_free_coherent(struct device *dev, size_t size,
+ void *virt, dma_addr_t addr)
+{
+ struct dma_debug_entry ref = {
+ .type = dma_debug_coherent,
+ .dev = dev,
+ .paddr = virt_to_phys(virt),
+ .dev_addr = addr,
+ .size = size,
+ .direction = DMA_BIDIRECTIONAL,
+ };
+
+ if (unlikely(global_disable))
+ return;
+
+ check_unmap(&ref);
+}
+EXPORT_SYMBOL(debug_dma_free_coherent);
+