Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Rob Clark |
259 |
72.55% |
8 |
50.00% |
| Jordan Crouse |
56 |
15.69% |
3 |
18.75% |
| Dmitry Eremin-Solenikov |
21 |
5.88% |
2 |
12.50% |
| Jonathan Marek |
11 |
3.08% |
1 |
6.25% |
| Stephane Viau |
8 |
2.24% |
1 |
6.25% |
| Thomas Gleixner |
2 |
0.56% |
1 |
6.25% |
| Total |
357 |
|
16 |
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#ifndef __MSM_MMU_H__
#define __MSM_MMU_H__
#include <linux/iommu.h>
struct msm_mmu_funcs {
void (*detach)(struct msm_mmu *mmu);
int (*map)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt,
size_t len, int prot);
int (*unmap)(struct msm_mmu *mmu, uint64_t iova, size_t len);
void (*destroy)(struct msm_mmu *mmu);
void (*resume_translation)(struct msm_mmu *mmu);
};
enum msm_mmu_type {
MSM_MMU_GPUMMU,
MSM_MMU_IOMMU,
MSM_MMU_IOMMU_PAGETABLE,
};
struct msm_mmu {
const struct msm_mmu_funcs *funcs;
struct device *dev;
int (*handler)(void *arg, unsigned long iova, int flags, void *data);
void *arg;
enum msm_mmu_type type;
};
static inline void msm_mmu_init(struct msm_mmu *mmu, struct device *dev,
const struct msm_mmu_funcs *funcs, enum msm_mmu_type type)
{
mmu->dev = dev;
mmu->funcs = funcs;
mmu->type = type;
}
struct msm_mmu *msm_iommu_new(struct device *dev, unsigned long quirks);
struct msm_mmu *msm_iommu_gpu_new(struct device *dev, struct msm_gpu *gpu, unsigned long quirks);
struct msm_mmu *msm_gpummu_new(struct device *dev, struct msm_gpu *gpu);
static inline void msm_mmu_set_fault_handler(struct msm_mmu *mmu, void *arg,
int (*handler)(void *arg, unsigned long iova, int flags, void *data))
{
mmu->arg = arg;
mmu->handler = handler;
}
struct msm_mmu *msm_iommu_pagetable_create(struct msm_mmu *parent);
void msm_gpummu_params(struct msm_mmu *mmu, dma_addr_t *pt_base,
dma_addr_t *tran_error);
int msm_iommu_pagetable_params(struct msm_mmu *mmu, phys_addr_t *ttbr,
int *asid);
struct iommu_domain_geometry *msm_iommu_get_geometry(struct msm_mmu *mmu);
#endif /* __MSM_MMU_H__ */