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