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 #define DRM_IVPU_BO_NOSNOOP 0x10000000 12 13 struct dma_buf; 14 struct ivpu_bo_ops; 15 struct ivpu_file_priv; 16 17 struct ivpu_bo { 18 struct drm_gem_object base; 19 const struct ivpu_bo_ops *ops; 20 21 struct ivpu_mmu_context *ctx; 22 struct list_head ctx_node; 23 struct drm_mm_node mm_node; 24 25 struct mutex lock; /* Protects: pages, sgt, mmu_mapped */ 26 struct sg_table *sgt; 27 struct page **pages; 28 bool mmu_mapped; 29 30 void *kvaddr; 31 u64 vpu_addr; 32 u32 handle; 33 u32 flags; 34 uintptr_t user_ptr; 35 u32 job_status; 36 }; 37 38 enum ivpu_bo_type { 39 IVPU_BO_TYPE_SHMEM = 1, 40 IVPU_BO_TYPE_INTERNAL, 41 IVPU_BO_TYPE_PRIME, 42 }; 43 44 struct ivpu_bo_ops { 45 enum ivpu_bo_type type; 46 const char *name; 47 int (*alloc_pages)(struct ivpu_bo *bo); 48 void (*free_pages)(struct ivpu_bo *bo); 49 int (*map_pages)(struct ivpu_bo *bo); 50 void (*unmap_pages)(struct ivpu_bo *bo); 51 }; 52 53 int ivpu_bo_pin(struct ivpu_bo *bo); 54 void ivpu_bo_remove_all_bos_from_context(struct ivpu_mmu_context *ctx); 55 void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p); 56 void ivpu_bo_list_print(struct drm_device *dev); 57 58 struct ivpu_bo * 59 ivpu_bo_alloc_internal(struct ivpu_device *vdev, u64 vpu_addr, u64 size, u32 flags); 60 void ivpu_bo_free_internal(struct ivpu_bo *bo); 61 struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf); 62 void ivpu_bo_unmap_sgt_and_remove_from_context(struct ivpu_bo *bo); 63 64 int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file); 65 int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file); 66 int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file); 67 68 static inline struct ivpu_bo *to_ivpu_bo(struct drm_gem_object *obj) 69 { 70 return container_of(obj, struct ivpu_bo, base); 71 } 72 73 static inline struct page *ivpu_bo_get_page(struct ivpu_bo *bo, u64 offset) 74 { 75 if (offset > bo->base.size || !bo->pages) 76 return NULL; 77 78 return bo->pages[offset / PAGE_SIZE]; 79 } 80 81 static inline u32 ivpu_bo_cache_mode(struct ivpu_bo *bo) 82 { 83 return bo->flags & DRM_IVPU_BO_CACHE_MASK; 84 } 85 86 static inline bool ivpu_bo_is_snooped(struct ivpu_bo *bo) 87 { 88 if (bo->flags & DRM_IVPU_BO_NOSNOOP) 89 return false; 90 91 return ivpu_bo_cache_mode(bo) == DRM_IVPU_BO_CACHED; 92 } 93 94 static inline pgprot_t ivpu_bo_pgprot(struct ivpu_bo *bo, pgprot_t prot) 95 { 96 if (bo->flags & DRM_IVPU_BO_WC) 97 return pgprot_writecombine(prot); 98 99 if (bo->flags & DRM_IVPU_BO_UNCACHED) 100 return pgprot_noncached(prot); 101 102 return prot; 103 } 104 105 static inline struct ivpu_device *ivpu_bo_to_vdev(struct ivpu_bo *bo) 106 { 107 return to_ivpu_device(bo->base.dev); 108 } 109 110 static inline void *ivpu_to_cpu_addr(struct ivpu_bo *bo, u32 vpu_addr) 111 { 112 if (vpu_addr < bo->vpu_addr) 113 return NULL; 114 115 if (vpu_addr >= (bo->vpu_addr + bo->base.size)) 116 return NULL; 117 118 return bo->kvaddr + (vpu_addr - bo->vpu_addr); 119 } 120 121 static inline u32 cpu_to_vpu_addr(struct ivpu_bo *bo, void *cpu_addr) 122 { 123 if (cpu_addr < bo->kvaddr) 124 return 0; 125 126 if (cpu_addr >= (bo->kvaddr + bo->base.size)) 127 return 0; 128 129 return bo->vpu_addr + (cpu_addr - bo->kvaddr); 130 } 131 132 #endif /* __IVPU_GEM_H__ */ 133