diff options
Diffstat (limited to 'include/asm-sparc64/parport.h')
| -rw-r--r-- | include/asm-sparc64/parport.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-sparc64/parport.h b/include/asm-sparc64/parport.h index be9509c..284dfd0 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; |