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| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-01-09 14:38:50 +0100 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-03-05 20:35:19 +0100 |
| commit | 6bfd4498764d6201399849d2e80fda95db7742c0 (patch) | |
| tree | 71675d02878324a82036e75d3bd0e0457a33e12b /lib/dma-debug.c | |
| parent | 972aa45ceaf65376f33aa75958fcaefc9e752fa4 (diff) | |
| download | linux-3.10-6bfd4498764d6201399849d2e80fda95db7742c0.tar.gz linux-3.10-6bfd4498764d6201399849d2e80fda95db7742c0.tar.bz2 linux-3.10-6bfd4498764d6201399849d2e80fda95db7742c0.zip | |
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.c | 45 |
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); + |