diff options
Diffstat (limited to 'include/dma.h')
| -rw-r--r-- | include/dma.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/dma.h b/include/dma.h index 90f9254ea8..2c4bdfc98f 100644 --- a/include/dma.h +++ b/include/dma.h @@ -56,15 +56,49 @@ static inline int dma_mapping_error(struct device_d *dev, dma_addr_t dma_addr) (dev->dma_mask && dma_addr > dev->dma_mask); } +#ifndef __PBL__ /* streaming DMA - implement the below calls to support HAS_DMA */ +#ifndef dma_sync_single_for_cpu void dma_sync_single_for_cpu(dma_addr_t address, size_t size, enum dma_data_direction dir); +#endif +#ifndef dma_sync_single_for_device void dma_sync_single_for_device(dma_addr_t address, size_t size, enum dma_data_direction dir); +#endif +#else +#ifndef dma_sync_single_for_cpu +/* + * assumes buffers are in coherent/uncached memory, e.g. because + * MMU is only enabled in barebox_arm_entry which hasn't run yet. + */ +static inline void dma_sync_single_for_cpu(dma_addr_t address, size_t size, + enum dma_data_direction dir) +{ + barrier_data((void *)address); +} +#endif +#ifndef dma_sync_single_for_device +static inline void dma_sync_single_for_device(dma_addr_t address, size_t size, + enum dma_data_direction dir) +{ + barrier_data((void *)address); +} +#endif +#endif + +#ifndef dma_alloc_coherent void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle); +#endif + +#ifndef dma_free_coherent void dma_free_coherent(void *mem, dma_addr_t dma_handle, size_t size); +#endif + +#ifndef dma_alloc_writecombine void *dma_alloc_writecombine(size_t size, dma_addr_t *dma_handle); +#endif #endif /* __DMA_H */ |