diff options
| author | Paul Mackerras <paulus@samba.org> | 2007-04-13 03:50:03 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-04-13 03:50:03 +1000 |
| commit | e049d1ca3094f3d1d94617f456a9961202f96e3a (patch) | |
| tree | a30397ad22f2fbea268bd28fa69c60aad9dfa62a /include/asm-sparc64/parport.h | |
| parent | edfac96a92b88d3b0b53e3f8231b74beee9ecd1d (diff) | |
| parent | 80584ff3b99c36ead7e130e453b3a48b18072d18 (diff) | |
Merge branch 'linux-2.6' into for-2.6.22
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 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; |