1*4882a593Smuzhiyun /** 2*4882a593Smuzhiyun * Copyright (C) 2016 Fuzhou Rockchip Electronics Co., Ltd 3*4882a593Smuzhiyun * author: Jung Zhao jung.zhao@rock-chips.com 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * This software is licensed under the terms of the GNU General Public 6*4882a593Smuzhiyun * License version 2, as published by the Free Software Foundation, and 7*4882a593Smuzhiyun * may be copied, distributed, and modified under those terms. 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * This program is distributed in the hope that it will be useful, 10*4882a593Smuzhiyun * but WITHOUT ANY WARRANTY; without even the implied warranty of 11*4882a593Smuzhiyun * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12*4882a593Smuzhiyun * GNU General Public License for more details. 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #ifndef __IEP_IOMMU_OPS_H__ 17*4882a593Smuzhiyun #define __IEP_IOMMU_OPS_H__ 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #include <linux/platform_device.h> 20*4882a593Smuzhiyun #include "iep_drv.h" 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun #define BUFFER_LIST_MAX_NUMS 30 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #define ALLOCATOR_USE_ION 0x00000000 25*4882a593Smuzhiyun #define ALLOCATOR_USE_DRM 0x00000001 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun #define DEBUG_IOMMU_OPS_DUMP 0x00020000 28*4882a593Smuzhiyun #define DEBUG_IOMMU_NORMAL 0x00040000 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #define vpu_iommu_debug_func(debug_level, type, fmt, args...) \ 31*4882a593Smuzhiyun do { \ 32*4882a593Smuzhiyun if (unlikely(debug_level & type)) { \ 33*4882a593Smuzhiyun pr_info("%s:%d: " fmt, \ 34*4882a593Smuzhiyun __func__, __LINE__, ##args); \ 35*4882a593Smuzhiyun } \ 36*4882a593Smuzhiyun } while (0) 37*4882a593Smuzhiyun #define vpu_iommu_debug(debug_level, type, fmt, args...) \ 38*4882a593Smuzhiyun do { \ 39*4882a593Smuzhiyun if (unlikely(debug_level & type)) { \ 40*4882a593Smuzhiyun pr_info(fmt, ##args); \ 41*4882a593Smuzhiyun } \ 42*4882a593Smuzhiyun } while (0) 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun struct iep_iommu_info; 45*4882a593Smuzhiyun struct iep_iommu_session_info; 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun struct iep_iommu_ops { 48*4882a593Smuzhiyun int (*create)(struct iep_iommu_info *iommu_info); 49*4882a593Smuzhiyun int (*import)(struct iep_iommu_session_info *session_info, int fd); 50*4882a593Smuzhiyun int (*free)(struct iep_iommu_session_info *session_info, int idx); 51*4882a593Smuzhiyun int (*free_fd)(struct iep_iommu_session_info *session_info, int fd); 52*4882a593Smuzhiyun int (*map_iommu)(struct iep_iommu_session_info *session_info, 53*4882a593Smuzhiyun int idx, 54*4882a593Smuzhiyun unsigned long *iova, unsigned long *size); 55*4882a593Smuzhiyun int (*unmap_iommu)(struct iep_iommu_session_info *session_info, 56*4882a593Smuzhiyun int idx); 57*4882a593Smuzhiyun int (*destroy)(struct iep_iommu_info *iommu_info); 58*4882a593Smuzhiyun void (*dump)(struct iep_iommu_session_info *session_info); 59*4882a593Smuzhiyun int (*attach)(struct iep_iommu_info *iommu_info); 60*4882a593Smuzhiyun void (*detach)(struct iep_iommu_info *iommu_info); 61*4882a593Smuzhiyun void (*clear)(struct iep_iommu_session_info *session_info); 62*4882a593Smuzhiyun }; 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun struct iep_iommu_session_info { 65*4882a593Smuzhiyun struct list_head head; 66*4882a593Smuzhiyun struct iep_session *session; 67*4882a593Smuzhiyun int buffer_nums; 68*4882a593Smuzhiyun struct list_head buffer_list; 69*4882a593Smuzhiyun struct mutex list_mutex; 70*4882a593Smuzhiyun int max_idx; 71*4882a593Smuzhiyun struct device *dev; 72*4882a593Smuzhiyun struct device *mmu_dev; 73*4882a593Smuzhiyun struct iep_iommu_info *iommu_info; 74*4882a593Smuzhiyun int debug_level; 75*4882a593Smuzhiyun }; 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun struct iep_iommu_info { 78*4882a593Smuzhiyun struct list_head session_list; 79*4882a593Smuzhiyun struct mutex list_mutex; 80*4882a593Smuzhiyun struct mutex iommu_mutex; 81*4882a593Smuzhiyun struct device *dev; 82*4882a593Smuzhiyun struct device *mmu_dev; 83*4882a593Smuzhiyun struct iep_iommu_ops *ops; 84*4882a593Smuzhiyun int debug_level; 85*4882a593Smuzhiyun void *private; 86*4882a593Smuzhiyun }; 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun #ifdef CONFIG_DRM 89*4882a593Smuzhiyun void iep_iommu_drm_set_ops(struct iep_iommu_info *iommu_info); 90*4882a593Smuzhiyun #endif 91*4882a593Smuzhiyun 92*4882a593Smuzhiyun struct iep_iommu_info *iep_iommu_info_create(struct device *dev, 93*4882a593Smuzhiyun struct device *mmu_dev, 94*4882a593Smuzhiyun int alloc_type); 95*4882a593Smuzhiyun int iep_iommu_info_destroy(struct iep_iommu_info *iommu_info); 96*4882a593Smuzhiyun 97*4882a593Smuzhiyun int iep_iommu_create(struct iep_iommu_info *iommu_info); 98*4882a593Smuzhiyun int iep_iommu_import(struct iep_iommu_info *iommu_info, 99*4882a593Smuzhiyun struct iep_session *session, int fd); 100*4882a593Smuzhiyun int iep_iommu_free(struct iep_iommu_info *iommu_info, 101*4882a593Smuzhiyun struct iep_session *session, int idx); 102*4882a593Smuzhiyun int iep_iommu_free_fd(struct iep_iommu_info *iommu_info, 103*4882a593Smuzhiyun struct iep_session *session, int fd); 104*4882a593Smuzhiyun int iep_iommu_map_iommu(struct iep_iommu_info *iommu_info, 105*4882a593Smuzhiyun struct iep_session *session, 106*4882a593Smuzhiyun int idx, 107*4882a593Smuzhiyun unsigned long *iova, 108*4882a593Smuzhiyun unsigned long *size); 109*4882a593Smuzhiyun int iep_iommu_unmap_iommu(struct iep_iommu_info *iommu_info, 110*4882a593Smuzhiyun struct iep_session *session, 111*4882a593Smuzhiyun int idx); 112*4882a593Smuzhiyun int iep_iommu_destroy(struct iep_iommu_info *iommu_info); 113*4882a593Smuzhiyun void iep_iommu_dump(struct iep_iommu_info *iommu_info, 114*4882a593Smuzhiyun struct iep_session *session); 115*4882a593Smuzhiyun void iep_iommu_clear(struct iep_iommu_info *iommu_info, 116*4882a593Smuzhiyun struct iep_session *session); 117*4882a593Smuzhiyun 118*4882a593Smuzhiyun int iep_iommu_attach(struct iep_iommu_info *iommu_info); 119*4882a593Smuzhiyun void iep_iommu_detach(struct iep_iommu_info *iommu_info); 120*4882a593Smuzhiyun 121*4882a593Smuzhiyun #endif 122