1 /*
2 * Copyright © 2016 Red Hat.
3 * Copyright © 2016 Bas Nieuwenhuizen
4 *
5 * based in part on anv driver which is:
6 * Copyright © 2015 Intel Corporation
7 *
8 * SPDX-License-Identifier: MIT
9 */
10
11 #include "ac_descriptors.h"
12 #include "gfx10_format_table.h"
13
14 #include "radv_buffer.h"
15 #include "radv_buffer_view.h"
16 #include "radv_entrypoints.h"
17 #include "radv_formats.h"
18 #include "radv_image.h"
19
20 #include "vk_log.h"
21
22 void
radv_make_texel_buffer_descriptor(struct radv_device * device,uint64_t va,VkFormat vk_format,unsigned offset,unsigned range,uint32_t * state)23 radv_make_texel_buffer_descriptor(struct radv_device *device, uint64_t va, VkFormat vk_format, unsigned offset,
24 unsigned range, uint32_t *state)
25 {
26 const struct radv_physical_device *pdev = radv_device_physical(device);
27 const struct util_format_description *desc;
28 unsigned stride;
29 enum pipe_swizzle swizzle[4];
30
31 desc = vk_format_description(vk_format);
32 stride = desc->block.bits / 8;
33
34 radv_compose_swizzle(desc, NULL, swizzle);
35
36 va += offset;
37
38 if (pdev->info.gfx_level != GFX8 && stride) {
39 range /= stride;
40 }
41
42 const struct ac_buffer_state ac_state = {
43 .va = va,
44 .size = range,
45 .format = vk_format_to_pipe_format(vk_format),
46 .swizzle =
47 {
48 swizzle[0],
49 swizzle[1],
50 swizzle[2],
51 swizzle[3],
52 },
53 .stride = stride,
54 .gfx10_oob_select = V_008F0C_OOB_SELECT_STRUCTURED_WITH_OFFSET,
55 };
56
57 ac_build_buffer_descriptor(pdev->info.gfx_level, &ac_state, state);
58 }
59
60 void
radv_buffer_view_init(struct radv_buffer_view * view,struct radv_device * device,const VkBufferViewCreateInfo * pCreateInfo)61 radv_buffer_view_init(struct radv_buffer_view *view, struct radv_device *device,
62 const VkBufferViewCreateInfo *pCreateInfo)
63 {
64 VK_FROM_HANDLE(radv_buffer, buffer, pCreateInfo->buffer);
65 uint64_t va = radv_buffer_get_va(buffer->bo) + buffer->offset;
66
67 vk_buffer_view_init(&device->vk, &view->vk, pCreateInfo);
68
69 view->bo = buffer->bo;
70
71 radv_make_texel_buffer_descriptor(device, va, view->vk.format, view->vk.offset, view->vk.range, view->state);
72 }
73
74 void
radv_buffer_view_finish(struct radv_buffer_view * view)75 radv_buffer_view_finish(struct radv_buffer_view *view)
76 {
77 vk_buffer_view_finish(&view->vk);
78 }
79
80 VKAPI_ATTR VkResult VKAPI_CALL
radv_CreateBufferView(VkDevice _device,const VkBufferViewCreateInfo * pCreateInfo,const VkAllocationCallbacks * pAllocator,VkBufferView * pView)81 radv_CreateBufferView(VkDevice _device, const VkBufferViewCreateInfo *pCreateInfo,
82 const VkAllocationCallbacks *pAllocator, VkBufferView *pView)
83 {
84 VK_FROM_HANDLE(radv_device, device, _device);
85 struct radv_buffer_view *view;
86
87 view = vk_alloc2(&device->vk.alloc, pAllocator, sizeof(*view), 8, VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
88 if (!view)
89 return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
90
91 radv_buffer_view_init(view, device, pCreateInfo);
92
93 *pView = radv_buffer_view_to_handle(view);
94
95 return VK_SUCCESS;
96 }
97
98 VKAPI_ATTR void VKAPI_CALL
radv_DestroyBufferView(VkDevice _device,VkBufferView bufferView,const VkAllocationCallbacks * pAllocator)99 radv_DestroyBufferView(VkDevice _device, VkBufferView bufferView, const VkAllocationCallbacks *pAllocator)
100 {
101 VK_FROM_HANDLE(radv_device, device, _device);
102 VK_FROM_HANDLE(radv_buffer_view, view, bufferView);
103
104 if (!view)
105 return;
106
107 radv_buffer_view_finish(view);
108 vk_free2(&device->vk.alloc, pAllocator, view);
109 }
110