| Message ID | 1423212497-11970-14-git-send-email-kishon@ti.com |
|---|---|
| State | Accepted |
| Delegated to: | Łukasz Majewski |
| Headers | show |
Hi Kishon, > Added dma_free_coherent corresponding to the dma_alloc_coherent in > dma-mapping.h in order to free memory allocated using > dma_alloc_coherent. This API is used in dwc3 driver. > > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> > --- > arch/arm/include/asm/dma-mapping.h | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm/include/asm/dma-mapping.h > b/arch/arm/include/asm/dma-mapping.h index 14f00efd2..a5821f5 100644 > --- a/arch/arm/include/asm/dma-mapping.h > +++ b/arch/arm/include/asm/dma-mapping.h > @@ -8,6 +8,8 @@ > #ifndef __ASM_ARM_DMA_MAPPING_H > #define __ASM_ARM_DMA_MAPPING_H > > +#define dma_mapping_error(x, y) 0 > + > enum dma_data_direction { > DMA_BIDIRECTIONAL = 0, > DMA_TO_DEVICE = 1, > @@ -20,6 +22,11 @@ static inline void *dma_alloc_coherent(size_t len, > unsigned long *handle) return (void *)*handle; > } > > +static inline void dma_free_coherent(void *addr) > +{ > + free(addr); > +} > + > static inline unsigned long dma_map_single(volatile void *vaddr, > size_t len, enum dma_data_direction dir) > { Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 14f00efd2..a5821f5 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -8,6 +8,8 @@ #ifndef __ASM_ARM_DMA_MAPPING_H #define __ASM_ARM_DMA_MAPPING_H +#define dma_mapping_error(x, y) 0 + enum dma_data_direction { DMA_BIDIRECTIONAL = 0, DMA_TO_DEVICE = 1, @@ -20,6 +22,11 @@ static inline void *dma_alloc_coherent(size_t len, unsigned long *handle) return (void *)*handle; } +static inline void dma_free_coherent(void *addr) +{ + free(addr); +} + static inline unsigned long dma_map_single(volatile void *vaddr, size_t len, enum dma_data_direction dir) {
Added dma_free_coherent corresponding to the dma_alloc_coherent in dma-mapping.h in order to free memory allocated using dma_alloc_coherent. This API is used in dwc3 driver. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- arch/arm/include/asm/dma-mapping.h | 7 +++++++ 1 file changed, 7 insertions(+)