1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2013 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
10 #include <linux/iommu.h>
12 struct msm_mmu_funcs {
13 void (*detach)(struct msm_mmu *mmu);
14 int (*map)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt,
15 size_t len, int prot);
16 int (*unmap)(struct msm_mmu *mmu, uint64_t iova, size_t len);
17 void (*destroy)(struct msm_mmu *mmu);
18 void (*resume_translation)(struct msm_mmu *mmu);
24 MSM_MMU_IOMMU_PAGETABLE,
28 const struct msm_mmu_funcs *funcs;
30 int (*handler)(void *arg, unsigned long iova, int flags, void *data);
32 enum msm_mmu_type type;
35 static inline void msm_mmu_init(struct msm_mmu *mmu, struct device *dev,
36 const struct msm_mmu_funcs *funcs, enum msm_mmu_type type)
43 struct msm_mmu *msm_iommu_new(struct device *dev, unsigned long quirks);
44 struct msm_mmu *msm_iommu_gpu_new(struct device *dev, struct msm_gpu *gpu, unsigned long quirks);
45 struct msm_mmu *msm_gpummu_new(struct device *dev, struct msm_gpu *gpu);
47 static inline void msm_mmu_set_fault_handler(struct msm_mmu *mmu, void *arg,
48 int (*handler)(void *arg, unsigned long iova, int flags, void *data))
51 mmu->handler = handler;
54 struct msm_mmu *msm_iommu_pagetable_create(struct msm_mmu *parent);
56 void msm_gpummu_params(struct msm_mmu *mmu, dma_addr_t *pt_base,
57 dma_addr_t *tran_error);
60 int msm_iommu_pagetable_params(struct msm_mmu *mmu, phys_addr_t *ttbr,
62 struct iommu_domain_geometry *msm_iommu_get_geometry(struct msm_mmu *mmu);
64 #endif /* __MSM_MMU_H__ */