Contributors: 7
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Jean-Philippe Brucker |
218 |
73.65% |
3 |
27.27% |
| Joerg Roedel |
30 |
10.14% |
1 |
9.09% |
| Lu Baolu |
29 |
9.80% |
3 |
27.27% |
| Alex Williamson |
14 |
4.73% |
1 |
9.09% |
| Fenghua Yu |
3 |
1.01% |
1 |
9.09% |
| Ohad Ben-Cohen |
1 |
0.34% |
1 |
9.09% |
| Jacob jun Pan |
1 |
0.34% |
1 |
9.09% |
| Total |
296 |
|
11 |
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* SVA library for IOMMU drivers
*/
#ifndef _IOMMU_SVA_H
#define _IOMMU_SVA_H
#include <linux/ioasid.h>
#include <linux/mm_types.h>
int iommu_sva_alloc_pasid(struct mm_struct *mm, ioasid_t min, ioasid_t max);
struct mm_struct *iommu_sva_find(ioasid_t pasid);
/* I/O Page fault */
struct device;
struct iommu_fault;
struct iopf_queue;
#ifdef CONFIG_IOMMU_SVA
int iommu_queue_iopf(struct iommu_fault *fault, void *cookie);
int iopf_queue_add_device(struct iopf_queue *queue, struct device *dev);
int iopf_queue_remove_device(struct iopf_queue *queue,
struct device *dev);
int iopf_queue_flush_dev(struct device *dev);
struct iopf_queue *iopf_queue_alloc(const char *name);
void iopf_queue_free(struct iopf_queue *queue);
int iopf_queue_discard_partial(struct iopf_queue *queue);
enum iommu_page_response_code
iommu_sva_handle_iopf(struct iommu_fault *fault, void *data);
#else /* CONFIG_IOMMU_SVA */
static inline int iommu_queue_iopf(struct iommu_fault *fault, void *cookie)
{
return -ENODEV;
}
static inline int iopf_queue_add_device(struct iopf_queue *queue,
struct device *dev)
{
return -ENODEV;
}
static inline int iopf_queue_remove_device(struct iopf_queue *queue,
struct device *dev)
{
return -ENODEV;
}
static inline int iopf_queue_flush_dev(struct device *dev)
{
return -ENODEV;
}
static inline struct iopf_queue *iopf_queue_alloc(const char *name)
{
return NULL;
}
static inline void iopf_queue_free(struct iopf_queue *queue)
{
}
static inline int iopf_queue_discard_partial(struct iopf_queue *queue)
{
return -ENODEV;
}
static inline enum iommu_page_response_code
iommu_sva_handle_iopf(struct iommu_fault *fault, void *data)
{
return IOMMU_PAGE_RESP_INVALID;
}
#endif /* CONFIG_IOMMU_SVA */
#endif /* _IOMMU_SVA_H */