mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-13 23:56:59 +07:00
478fb15800
This fixes up the dma_is_consistent() definition for the various coherence options. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
#ifndef __ASM_SH_DMA_MAPPING_H
|
|
#define __ASM_SH_DMA_MAPPING_H
|
|
|
|
extern struct dma_map_ops *dma_ops;
|
|
extern void no_iommu_init(void);
|
|
|
|
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
|
|
{
|
|
return dma_ops;
|
|
}
|
|
|
|
#include <asm-generic/dma-coherent.h>
|
|
#include <asm-generic/dma-mapping-common.h>
|
|
|
|
static inline int dma_supported(struct device *dev, u64 mask)
|
|
{
|
|
struct dma_map_ops *ops = get_dma_ops(dev);
|
|
|
|
if (ops->dma_supported)
|
|
return ops->dma_supported(dev, mask);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static inline int dma_set_mask(struct device *dev, u64 mask)
|
|
{
|
|
struct dma_map_ops *ops = get_dma_ops(dev);
|
|
|
|
if (!dev->dma_mask || !dma_supported(dev, mask))
|
|
return -EIO;
|
|
if (ops->set_dma_mask)
|
|
return ops->set_dma_mask(dev, mask);
|
|
|
|
*dev->dma_mask = mask;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
|
|
enum dma_data_direction dir);
|
|
|
|
#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)
|
|
|
|
#ifdef CONFIG_DMA_COHERENT
|
|
#define dma_is_consistent(d, h) (1)
|
|
#else
|
|
#define dma_is_consistent(d, h) (0)
|
|
#endif
|
|
|
|
static inline int dma_get_cache_alignment(void)
|
|
{
|
|
/*
|
|
* Each processor family will define its own L1_CACHE_SHIFT,
|
|
* L1_CACHE_BYTES wraps to this, so this is always safe.
|
|
*/
|
|
return L1_CACHE_BYTES;
|
|
}
|
|
|
|
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
|
|
{
|
|
struct dma_map_ops *ops = get_dma_ops(dev);
|
|
|
|
if (ops->mapping_error)
|
|
return ops->mapping_error(dev, dma_addr);
|
|
|
|
return dma_addr == 0;
|
|
}
|
|
|
|
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
|
|
dma_addr_t *dma_handle, gfp_t gfp)
|
|
{
|
|
struct dma_map_ops *ops = get_dma_ops(dev);
|
|
void *memory;
|
|
|
|
if (dma_alloc_from_coherent(dev, size, dma_handle, &memory))
|
|
return memory;
|
|
if (!ops->alloc_coherent)
|
|
return NULL;
|
|
|
|
memory = ops->alloc_coherent(dev, size, dma_handle, gfp);
|
|
debug_dma_alloc_coherent(dev, size, *dma_handle, memory);
|
|
|
|
return memory;
|
|
}
|
|
|
|
static inline void dma_free_coherent(struct device *dev, size_t size,
|
|
void *vaddr, dma_addr_t dma_handle)
|
|
{
|
|
struct dma_map_ops *ops = get_dma_ops(dev);
|
|
|
|
WARN_ON(irqs_disabled()); /* for portability */
|
|
|
|
if (dma_release_from_coherent(dev, get_order(size), vaddr))
|
|
return;
|
|
|
|
debug_dma_free_coherent(dev, size, vaddr, dma_handle);
|
|
if (ops->free_coherent)
|
|
ops->free_coherent(dev, size, vaddr, dma_handle);
|
|
}
|
|
|
|
/* arch/sh/mm/consistent.c */
|
|
extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
|
|
dma_addr_t *dma_addr, gfp_t flag);
|
|
extern void dma_generic_free_coherent(struct device *dev, size_t size,
|
|
void *vaddr, dma_addr_t dma_handle);
|
|
|
|
#endif /* __ASM_SH_DMA_MAPPING_H */
|