mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
c416258a6e
Adapt core SPARC architecture code for dma_map_ops changes: replace alloc/free_coherent with generic alloc/free methods. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: David S. Miller <davem@davemloft.net>
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
#ifndef ___ASM_SPARC_DMA_MAPPING_H
|
|
#define ___ASM_SPARC_DMA_MAPPING_H
|
|
|
|
#include <linux/scatterlist.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/dma-debug.h>
|
|
|
|
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
|
|
|
|
extern int dma_supported(struct device *dev, u64 mask);
|
|
|
|
#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)
|
|
|
|
extern struct dma_map_ops *dma_ops, pci32_dma_ops;
|
|
extern struct bus_type pci_bus_type;
|
|
|
|
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
|
|
{
|
|
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
|
|
if (dev->bus == &pci_bus_type)
|
|
return &pci32_dma_ops;
|
|
#endif
|
|
return dma_ops;
|
|
}
|
|
|
|
#include <asm-generic/dma-mapping-common.h>
|
|
|
|
#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL)
|
|
|
|
static inline void *dma_alloc_attrs(struct device *dev, size_t size,
|
|
dma_addr_t *dma_handle, gfp_t flag,
|
|
struct dma_attrs *attrs)
|
|
{
|
|
struct dma_map_ops *ops = get_dma_ops(dev);
|
|
void *cpu_addr;
|
|
|
|
cpu_addr = ops->alloc(dev, size, dma_handle, flag, attrs);
|
|
debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr);
|
|
return cpu_addr;
|
|
}
|
|
|
|
#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
|
|
|
|
static inline void dma_free_attrs(struct device *dev, size_t size,
|
|
void *cpu_addr, dma_addr_t dma_handle,
|
|
struct dma_attrs *attrs)
|
|
{
|
|
struct dma_map_ops *ops = get_dma_ops(dev);
|
|
|
|
debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
|
|
ops->free(dev, size, cpu_addr, dma_handle, attrs);
|
|
}
|
|
|
|
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
|
|
{
|
|
return (dma_addr == DMA_ERROR_CODE);
|
|
}
|
|
|
|
static inline int dma_set_mask(struct device *dev, u64 mask)
|
|
{
|
|
#ifdef CONFIG_PCI
|
|
if (dev->bus == &pci_bus_type) {
|
|
if (!dev->dma_mask || !dma_supported(dev, mask))
|
|
return -EINVAL;
|
|
*dev->dma_mask = mask;
|
|
return 0;
|
|
}
|
|
#endif
|
|
return -EINVAL;
|
|
}
|
|
|
|
#endif
|