Eric Lee / linux-smarc-t335x-v3.2

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Commit b9d2317e0c4aed02afd20022083b2a485289605d

Authored by Joerg Roedel
1 parent 6bfd449876
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

dma-debug: add checks for sync_single_* 

Impact: add debug callbacks for dma_sync_single_for_* functions

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

Showing 2 changed files with 41 additions and 0 deletions Side-by-side Diff

include/linux/dma-debug.h
Diff comments   View file @ b9d2317
... ... @@ -49,6 +49,14 @@
49 49 extern void debug_dma_free_coherent(struct device *dev, size_t size,
50 50 void *virt, dma_addr_t addr);
51 51  
  52 +extern void debug_dma_sync_single_for_cpu(struct device *dev,
  53 + dma_addr_t dma_handle, size_t size,
  54 + int direction);
  55 +
  56 +extern void debug_dma_sync_single_for_device(struct device *dev,
  57 + dma_addr_t dma_handle,
  58 + size_t size, int direction);
  59 +
52 60 #else /* CONFIG_DMA_API_DEBUG */
53 61  
54 62 static inline void dma_debug_init(u32 num_entries)
... ... @@ -86,6 +94,18 @@
86 94  
87 95 static inline void debug_dma_free_coherent(struct device *dev, size_t size,
88 96 void *virt, dma_addr_t addr)
  97 +{
  98 +}
  99 +
  100 +static inline void debug_dma_sync_single_for_cpu(struct device *dev,
  101 + dma_addr_t dma_handle,
  102 + size_t size, int direction)
  103 +{
  104 +}
  105 +
  106 +static inline void debug_dma_sync_single_for_device(struct device *dev,
  107 + dma_addr_t dma_handle,
  108 + size_t size, int direction)
89 109 {
90 110 }
91 111  
... ... @@ -736,4 +736,25 @@
736 736 check_unmap(&ref);
737 737 }
738 738 EXPORT_SYMBOL(debug_dma_free_coherent);
  739 +
  740 +void debug_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
  741 + size_t size, int direction)
  742 +{
  743 + if (unlikely(global_disable))
  744 + return;
  745 +
  746 + check_sync(dev, dma_handle, size, 0, direction, true);
  747 +}
  748 +EXPORT_SYMBOL(debug_dma_sync_single_for_cpu);
  749 +
  750 +void debug_dma_sync_single_for_device(struct device *dev,
  751 + dma_addr_t dma_handle, size_t size,
  752 + int direction)
  753 +{
  754 + if (unlikely(global_disable))
  755 + return;
  756 +
  757 + check_sync(dev, dma_handle, size, 0, direction, false);
  758 +}
  759 +EXPORT_SYMBOL(debug_dma_sync_single_for_device);