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-rw-r--r--include/asm-sparc64/parport.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-sparc64/parport.h b/include/asm-sparc64/parport.h
index be9509c8f8c..284dfd01a33 100644
--- a/include/asm-sparc64/parport.h
+++ b/include/asm-sparc64/parport.h
@@ -19,6 +19,17 @@
*/
#define HAS_DMA
+static DEFINE_SPINLOCK(dma_spin_lock);
+
+#define claim_dma_lock() \
+({ unsigned long flags; \
+ spin_lock_irqsave(&dma_spin_lock, flags); \
+ flags; \
+})
+
+#define release_dma_lock(__flags) \
+ spin_unlock_irqrestore(&dma_spin_lock, __flags);
+
static struct sparc_ebus_info {
struct ebus_dma_info info;
unsigned int addr;