#include <linux/config.h>
#include <linux/mm.h>
+#include <linux/device.h>
#include <asm/scatterlist.h>
#include <asm/io.h>
+extern struct bus_type pci_bus_type;
+
/* arch/sh/mm/consistent.c */
extern void *consistent_alloc(int gfp, size_t size, dma_addr_t *handle);
extern void consistent_free(void *vaddr, size_t size);
extern void consistent_sync(void *vaddr, size_t size, int direction);
-#ifdef CONFIG_SH_DREAMCAST
-struct pci_dev;
-extern struct bus_type pci_bus_type;
-extern void *__pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
- dma_addr_t *dma_handle);
-extern void __pci_free_consistent(struct pci_dev *hwdev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
-#endif
-
#define dma_supported(dev, mask) (1)
static inline int dma_set_mask(struct device *dev, u64 mask)
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, int flag)
{
- /*
- * Some platforms have special pci_alloc_consistent() implementations,
- * in these instances we can't use the generic consistent_alloc().
- */
-#ifdef CONFIG_SH_DREAMCAST
- if (dev && dev->bus == &pci_bus_type)
- return __pci_alloc_consistent(NULL, size, dma_handle);
-#endif
- if (sh_mv.mv_consistent_alloc)
- return sh_mv.mv_consistent_alloc(dev, size, dma_handle, flag);
+ if (sh_mv.mv_consistent_alloc) {
+ void *ret;
+
+ ret = sh_mv.mv_consistent_alloc(dev, size, dma_handle, flag);
+ if (ret != NULL)
+ return ret;
+ }
return consistent_alloc(flag, size, dma_handle);
}
static inline void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
- /*
- * Same note as above applies to pci_free_consistent()..
- */
-#ifdef CONFIG_SH_DREAMCAST
- if (dev && dev->bus == &pci_bus_type) {
- __pci_free_consistent(NULL, size, vaddr, dma_handle);
- return;
- }
-#endif
-
if (sh_mv.mv_consistent_free) {
- sh_mv.mv_consistent_free(dev, size, vaddr, dma_handle);
- return;
+ int ret;
+
+ ret = sh_mv.mv_consistent_free(dev, size, vaddr, dma_handle);
+ if (ret == 0)
+ return;
}
consistent_free(vaddr, size);