1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2020-2023 Intel Corporation 4 */ 5 #ifndef __IVPU_GEM_H__ 6 #define __IVPU_GEM_H__ 7 8 #include <drm/drm_gem.h> 9 #include <drm/drm_mm.h> 10 11 struct dma_buf; 12 struct ivpu_bo_ops; 13 struct ivpu_file_priv; 14 15 struct ivpu_bo { 16 struct drm_gem_object base; 17 const struct ivpu_bo_ops *ops; 18 19 struct ivpu_mmu_context *ctx; 20 struct list_head ctx_node; 21 struct drm_mm_node mm_node; 22 23 struct mutex lock; /* Protects: pages, sgt, mmu_mapped */ 24 struct sg_table *sgt; 25 struct page **pages; 26 bool mmu_mapped; 27 28 void *kvaddr; 29 u64 vpu_addr; 30 u32 handle; 31 u32 flags; 32 uintptr_t user_ptr; 33 u32 job_status; 34 }; 35 36 enum ivpu_bo_type { 37 IVPU_BO_TYPE_SHMEM = 1, 38 IVPU_BO_TYPE_INTERNAL, 39 IVPU_BO_TYPE_PRIME, 40 }; 41 42 struct ivpu_bo_ops { 43 enum ivpu_bo_type type; 44 const char *name; 45 int (*alloc_pages)(struct ivpu_bo *bo); 46 void (*free_pages)(struct ivpu_bo *bo); 47 int (*map_pages)(struct ivpu_bo *bo); 48 void (*unmap_pages)(struct ivpu_bo *bo); 49 }; 50 51 int ivpu_bo_pin(struct ivpu_bo *bo); 52 void ivpu_bo_remove_all_bos_from_context(struct ivpu_mmu_context *ctx); 53 void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p); 54 void ivpu_bo_list_print(struct drm_device *dev); 55 56 struct ivpu_bo * 57 ivpu_bo_alloc_internal(struct ivpu_device *vdev, u64 vpu_addr, u64 size, u32 flags); 58 void ivpu_bo_free_internal(struct ivpu_bo *bo); 59 struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf); 60 void ivpu_bo_unmap_sgt_and_remove_from_context(struct ivpu_bo *bo); 61 62 int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file); 63 int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file); 64 int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file); 65 66 static inline struct ivpu_bo *to_ivpu_bo(struct drm_gem_object *obj) 67 { 68 return container_of(obj, struct ivpu_bo, base); 69 } 70 71 static inline struct page *ivpu_bo_get_page(struct ivpu_bo *bo, u64 offset) 72 { 73 if (offset > bo->base.size || !bo->pages) 74 return NULL; 75 76 return bo->pages[offset / PAGE_SIZE]; 77 } 78 79 static inline u32 ivpu_bo_cache_mode(struct ivpu_bo *bo) 80 { 81 return bo->flags & DRM_IVPU_BO_CACHE_MASK; 82 } 83 84 static inline bool ivpu_bo_is_snooped(struct ivpu_bo *bo) 85 { 86 return ivpu_bo_cache_mode(bo) == DRM_IVPU_BO_CACHED; 87 } 88 89 static inline pgprot_t ivpu_bo_pgprot(struct ivpu_bo *bo, pgprot_t prot) 90 { 91 if (bo->flags & DRM_IVPU_BO_WC) 92 return pgprot_writecombine(prot); 93 94 if (bo->flags & DRM_IVPU_BO_UNCACHED) 95 return pgprot_noncached(prot); 96 97 return prot; 98 } 99 100 static inline struct ivpu_device *ivpu_bo_to_vdev(struct ivpu_bo *bo) 101 { 102 return to_ivpu_device(bo->base.dev); 103 } 104 105 static inline void *ivpu_to_cpu_addr(struct ivpu_bo *bo, u32 vpu_addr) 106 { 107 if (vpu_addr < bo->vpu_addr) 108 return NULL; 109 110 if (vpu_addr >= (bo->vpu_addr + bo->base.size)) 111 return NULL; 112 113 return bo->kvaddr + (vpu_addr - bo->vpu_addr); 114 } 115 116 static inline u32 cpu_to_vpu_addr(struct ivpu_bo *bo, void *cpu_addr) 117 { 118 if (cpu_addr < bo->kvaddr) 119 return 0; 120 121 if (cpu_addr >= (bo->kvaddr + bo->base.size)) 122 return 0; 123 124 return bo->vpu_addr + (cpu_addr - bo->kvaddr); 125 } 126 127 #endif /* __IVPU_GEM_H__ */ 128