mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 22:24:09 +08:00
a9a5250cc6
Remove gratuitous brackets in dma_mapping_error. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
#ifndef _ASM_S390_DMA_MAPPING_H
|
|
#define _ASM_S390_DMA_MAPPING_H
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/scatterlist.h>
|
|
#include <linux/dma-attrs.h>
|
|
#include <linux/dma-debug.h>
|
|
#include <linux/io.h>
|
|
|
|
#define DMA_ERROR_CODE (~(dma_addr_t) 0x0)
|
|
|
|
extern struct dma_map_ops s390_dma_ops;
|
|
|
|
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
|
|
{
|
|
return &s390_dma_ops;
|
|
}
|
|
|
|
extern int dma_set_mask(struct device *dev, u64 mask);
|
|
|
|
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
}
|
|
|
|
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
|
|
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
|
|
|
|
#include <asm-generic/dma-mapping-common.h>
|
|
|
|
static inline int dma_supported(struct device *dev, u64 mask)
|
|
{
|
|
struct dma_map_ops *dma_ops = get_dma_ops(dev);
|
|
|
|
if (dma_ops->dma_supported == NULL)
|
|
return 1;
|
|
return dma_ops->dma_supported(dev, mask);
|
|
}
|
|
|
|
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
|
|
{
|
|
if (!dev->dma_mask)
|
|
return 0;
|
|
return addr + size - 1 <= *dev->dma_mask;
|
|
}
|
|
|
|
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
|
|
{
|
|
struct dma_map_ops *dma_ops = get_dma_ops(dev);
|
|
|
|
debug_dma_mapping_error(dev, dma_addr);
|
|
if (dma_ops->mapping_error)
|
|
return dma_ops->mapping_error(dev, dma_addr);
|
|
return dma_addr == DMA_ERROR_CODE;
|
|
}
|
|
|
|
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
|
|
dma_addr_t *dma_handle, gfp_t flag)
|
|
{
|
|
struct dma_map_ops *ops = get_dma_ops(dev);
|
|
void *ret;
|
|
|
|
ret = ops->alloc(dev, size, dma_handle, flag, NULL);
|
|
debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
|
|
return ret;
|
|
}
|
|
|
|
static inline void dma_free_coherent(struct device *dev, size_t size,
|
|
void *cpu_addr, dma_addr_t dma_handle)
|
|
{
|
|
struct dma_map_ops *dma_ops = get_dma_ops(dev);
|
|
|
|
debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
|
|
dma_ops->free(dev, size, cpu_addr, dma_handle, NULL);
|
|
}
|
|
|
|
#endif /* _ASM_S390_DMA_MAPPING_H */
|