diff options
Diffstat (limited to 'arch/arm/include/asm/dma.h')
| -rw-r--r-- | arch/arm/include/asm/dma.h | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h index 42005542932..69a5b0b6455 100644 --- a/arch/arm/include/asm/dma.h +++ b/arch/arm/include/asm/dma.h @@ -1,15 +1,16 @@ #ifndef __ASM_ARM_DMA_H #define __ASM_ARM_DMA_H -#include <asm/memory.h> - /* * This is the maximum virtual address which can be DMA'd from. */ -#ifndef ARM_DMA_ZONE_SIZE -#define MAX_DMA_ADDRESS 0xffffffff +#ifndef CONFIG_ZONE_DMA +#define MAX_DMA_ADDRESS 0xffffffffUL #else -#define MAX_DMA_ADDRESS (PAGE_OFFSET + ARM_DMA_ZONE_SIZE) +#define MAX_DMA_ADDRESS ({ \ + extern unsigned long arm_dma_zone_size; \ + arm_dma_zone_size ? \ + (PAGE_OFFSET + arm_dma_zone_size) : 0xffffffffUL; }) #endif #ifdef CONFIG_ISA_DMA_API @@ -33,18 +34,18 @@ #define DMA_MODE_CASCADE 0xc0 #define DMA_AUTOINIT 0x10 -extern spinlock_t dma_spin_lock; +extern raw_spinlock_t dma_spin_lock; static inline unsigned long claim_dma_lock(void) { unsigned long flags; - spin_lock_irqsave(&dma_spin_lock, flags); + raw_spin_lock_irqsave(&dma_spin_lock, flags); return flags; } static inline void release_dma_lock(unsigned long flags) { - spin_unlock_irqrestore(&dma_spin_lock, flags); + raw_spin_unlock_irqrestore(&dma_spin_lock, flags); } /* Clear the 'DMA Pointer Flip Flop'. |