| /* |
| * Copyright 2019 Google LLC |
| * SPDX-License-Identifier: MIT |
| * |
| * based in part on anv and radv which are: |
| * Copyright © 2015 Intel Corporation |
| * Copyright © 2016 Red Hat. |
| * Copyright © 2016 Bas Nieuwenhuizen |
| */ |
| |
| #ifndef VN_DEVICE_MEMORY_H |
| #define VN_DEVICE_MEMORY_H |
| |
| #include "vn_common.h" |
| |
| struct vn_device_memory { |
| struct vn_device_memory_base base; |
| |
| /* non-NULL when mappable or external */ |
| struct vn_renderer_bo *base_bo; |
| |
| /* ensure renderer side resource create is called after vkAllocateMemory |
| * |
| * 1. driver submits vkAllocateMemory (alloc) via ring for a ring seqno |
| * 2. driver submits via vq to wait for above ring to reach the seqno |
| * 3. driver creates virtgpu bo from renderer VkDeviceMemory |
| * |
| * ensure renderer side resource destroy is called after vkAllocateMemory |
| * |
| * 1. driver submits vkAllocateMemory (import) via ring for a ring seqno |
| * 2. driver submits via vq to wait for above ring to reach the seqno |
| * 3. driver destroys virtgpu bo |
| */ |
| bool bo_ring_seqno_valid; |
| uint32_t bo_ring_seqno; |
| |
| /* ensure renderer side vkFreeMemory is called after vkGetMemoryFdKHR |
| * |
| * 1. driver creates virtgpu bo from renderer VkDeviceMemory |
| * 2. driver submits via vq to update the vq seqno |
| * 3, driver submits via ring to wait for vq reaching above seqno |
| * 4. driver submits vkFreeMemory via ring |
| * |
| * To be noted: a successful virtgpu mmap implies a roundtrip, so |
| * vn_FreeMemory after that no longer has to wait. |
| */ |
| bool bo_roundtrip_seqno_valid; |
| uint64_t bo_roundtrip_seqno; |
| |
| VkDeviceSize map_end; |
| }; |
| VK_DEFINE_NONDISP_HANDLE_CASTS(vn_device_memory, |
| base.vk.base, |
| VkDeviceMemory, |
| VK_OBJECT_TYPE_DEVICE_MEMORY) |
| |
| VkResult |
| vn_device_memory_import_dma_buf(struct vn_device *dev, |
| struct vn_device_memory *mem, |
| const VkMemoryAllocateInfo *alloc_info, |
| bool force_unmappable, |
| int fd); |
| |
| VkResult |
| vn_get_memory_dma_buf_properties(struct vn_device *dev, |
| int fd, |
| uint64_t *out_alloc_size, |
| uint32_t *out_mem_type_bits); |
| |
| #endif /* VN_DEVICE_MEMORY_H */ |
