1caab277bSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2871d812aSRob Clark /* 3871d812aSRob Clark * Copyright (C) 2013 Red Hat 4871d812aSRob Clark * Author: Rob Clark <robdclark@gmail.com> 5871d812aSRob Clark */ 6871d812aSRob Clark 7871d812aSRob Clark #ifndef __MSM_MMU_H__ 8871d812aSRob Clark #define __MSM_MMU_H__ 9871d812aSRob Clark 10871d812aSRob Clark #include <linux/iommu.h> 11871d812aSRob Clark 12871d812aSRob Clark struct msm_mmu_funcs { 1353bf7f7aSDrew Davenport int (*attach)(struct msm_mmu *mmu); 1453bf7f7aSDrew Davenport void (*detach)(struct msm_mmu *mmu); 1578babc16SRob Clark int (*map)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt, 16871d812aSRob Clark unsigned len, int prot); 1770dc51b4SJordan Crouse int (*unmap)(struct msm_mmu *mmu, uint64_t iova, unsigned len); 18871d812aSRob Clark void (*destroy)(struct msm_mmu *mmu); 19871d812aSRob Clark }; 20871d812aSRob Clark 21871d812aSRob Clark struct msm_mmu { 22871d812aSRob Clark const struct msm_mmu_funcs *funcs; 23944fc36cSRob Clark struct device *dev; 247f8036b7SRob Clark int (*handler)(void *arg, unsigned long iova, int flags); 257f8036b7SRob Clark void *arg; 26871d812aSRob Clark }; 27871d812aSRob Clark 28944fc36cSRob Clark static inline void msm_mmu_init(struct msm_mmu *mmu, struct device *dev, 29871d812aSRob Clark const struct msm_mmu_funcs *funcs) 30871d812aSRob Clark { 31871d812aSRob Clark mmu->dev = dev; 32871d812aSRob Clark mmu->funcs = funcs; 33871d812aSRob Clark } 34871d812aSRob Clark 35944fc36cSRob Clark struct msm_mmu *msm_iommu_new(struct device *dev, struct iommu_domain *domain); 36944fc36cSRob Clark struct msm_mmu *msm_gpummu_new(struct device *dev, struct msm_gpu *gpu); 37871d812aSRob Clark 387f8036b7SRob Clark static inline void msm_mmu_set_fault_handler(struct msm_mmu *mmu, void *arg, 397f8036b7SRob Clark int (*handler)(void *arg, unsigned long iova, int flags)) 407f8036b7SRob Clark { 417f8036b7SRob Clark mmu->arg = arg; 427f8036b7SRob Clark mmu->handler = handler; 437f8036b7SRob Clark } 447f8036b7SRob Clark 45c2052a4eSJonathan Marek void msm_gpummu_params(struct msm_mmu *mmu, dma_addr_t *pt_base, 46c2052a4eSJonathan Marek dma_addr_t *tran_error); 47c2052a4eSJonathan Marek 48871d812aSRob Clark #endif /* __MSM_MMU_H__ */ 49