62fdd7678a
The patch contains Intel IOMMU IA64 specific code. It defines new machvec dig_vtd, hooks for IOMMU, DMAR table detection, cache line flush function, etc. For a generic kernel with CONFIG_DMAR=y, if Intel IOMMU is detected, dig_vtd is used for machinve vector. Otherwise, kernel falls back to dig machine vector. Kernel parameter "machvec=dig" or "intel_iommu=off" can be used to force kernel to boot dig machine vector. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
#ifndef ASM_IA64__SWIOTLB_H
|
|
#define ASM_IA64__SWIOTLB_H
|
|
|
|
#include <linux/dma-mapping.h>
|
|
|
|
/* SWIOTLB interface */
|
|
|
|
extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr,
|
|
size_t size, int dir);
|
|
extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
|
|
dma_addr_t *dma_handle, gfp_t flags);
|
|
extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
|
|
size_t size, int dir);
|
|
extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
|
|
dma_addr_t dev_addr,
|
|
size_t size, int dir);
|
|
extern void swiotlb_sync_single_for_device(struct device *hwdev,
|
|
dma_addr_t dev_addr,
|
|
size_t size, int dir);
|
|
extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev,
|
|
dma_addr_t dev_addr,
|
|
unsigned long offset,
|
|
size_t size, int dir);
|
|
extern void swiotlb_sync_single_range_for_device(struct device *hwdev,
|
|
dma_addr_t dev_addr,
|
|
unsigned long offset,
|
|
size_t size, int dir);
|
|
extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
|
|
struct scatterlist *sg, int nelems,
|
|
int dir);
|
|
extern void swiotlb_sync_sg_for_device(struct device *hwdev,
|
|
struct scatterlist *sg, int nelems,
|
|
int dir);
|
|
extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
|
|
int nents, int direction);
|
|
extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
|
|
int nents, int direction);
|
|
extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
|
|
extern void swiotlb_free_coherent(struct device *hwdev, size_t size,
|
|
void *vaddr, dma_addr_t dma_handle);
|
|
extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
|
|
extern void swiotlb_init(void);
|
|
|
|
extern int swiotlb_force;
|
|
|
|
#ifdef CONFIG_SWIOTLB
|
|
extern int swiotlb;
|
|
extern void pci_swiotlb_init(void);
|
|
#else
|
|
#define swiotlb 0
|
|
static inline void pci_swiotlb_init(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#endif /* ASM_IA64__SWIOTLB_H */
|