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      1 /*
      2  * Copyright 2019 Google LLC
      3  * SPDX-License-Identifier: MIT
      4  *
      5  * based in part on anv and radv which are:
      6  * Copyright  2015 Intel Corporation
      7  * Copyright  2016 Red Hat.
      8  * Copyright  2016 Bas Nieuwenhuizen
      9  */
     10 
     11 #ifndef VN_DEVICE_MEMORY_H
     12 #define VN_DEVICE_MEMORY_H
     13 
     14 #include "vn_common.h"
     15 
     16 struct vn_device_memory_pool {
     17    mtx_t mutex;
     18    struct vn_device_memory *memory;
     19    VkDeviceSize used;
     20 };
     21 
     22 struct vn_device_memory {
     23    struct vn_object_base base;
     24 
     25    VkDeviceSize size;
     26 
     27    /* non-NULL when suballocated */
     28    struct vn_device_memory *base_memory;
     29    /* non-NULL when mappable or external */
     30    struct vn_renderer_bo *base_bo;
     31    VkDeviceSize base_offset;
     32 
     33    VkDeviceSize map_end;
     34 
     35    /* non-NULL when backed by AHB */
     36    struct AHardwareBuffer *ahb;
     37 };
     38 VK_DEFINE_NONDISP_HANDLE_CASTS(vn_device_memory,
     39                                base.base,
     40                                VkDeviceMemory,
     41                                VK_OBJECT_TYPE_DEVICE_MEMORY)
     42 
     43 void
     44 vn_device_memory_pool_fini(struct vn_device *dev, uint32_t mem_type_index);
     45 
     46 VkResult
     47 vn_device_memory_import_dma_buf(struct vn_device *dev,
     48                                 struct vn_device_memory *mem,
     49                                 const VkMemoryAllocateInfo *alloc_info,
     50                                 bool force_unmappable,
     51                                 int fd);
     52 
     53 VkResult
     54 vn_get_memory_dma_buf_properties(struct vn_device *dev,
     55                                  int fd,
     56                                  uint64_t *out_alloc_size,
     57                                  uint32_t *out_mem_type_bits);
     58 
     59 #endif /* VN_DEVICE_MEMORY_H */
     60