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[d3d11] Move immediate constant buffers to non-mapped VRAM

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This has the advantage that icbs can be defragmented and don't
take up space in HVV chunks that would potentially go unused.
This commit is contained in:
Philip Rebohle 2025-02-26 00:44:17 +01:00 committed by Philip Rebohle
parent 6f59124e9a
commit 43f360d20c
4 changed files with 50 additions and 11 deletions
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7
src/d3d11/d3d11_device.h
View File

@ -429,6 +429,13 @@ namespace dxvk {
m_initializer->NotifyContextFlush();
}
void InitShaderIcb(
D3D11CommonShader* pShader,
size_t IcbSize,
const void* pIcbData) {
return m_initializer->InitShaderIcb(pShader, IcbSize, pIcbData);
}
VkPipelineStageFlags GetEnabledShaderStages() const {
return m_dxvkDevice->getShaderPipelineStages();
}

27
src/d3d11/d3d11_initializer.cpp
View File

@ -77,6 +77,33 @@ namespace dxvk {
}
void D3D11Initializer::InitShaderIcb(
D3D11CommonShader* pShader,
size_t IcbSize,
const void* pIcbData) {
std::lock_guard<dxvk::mutex> lock(m_mutex);
m_transferCommands += 1;
auto icbSlice = pShader->GetIcb();
auto srcSlice = m_stagingBuffer.alloc(icbSlice.length());
std::memcpy(srcSlice.mapPtr(0), pIcbData, IcbSize);
if (IcbSize < icbSlice.length())
std::memset(srcSlice.mapPtr(IcbSize), 0, icbSlice.length() - IcbSize);
EmitCs([
cIcbSlice = std::move(icbSlice),
cSrcSlice = std::move(srcSlice)
] (DxvkContext* ctx) {
ctx->copyBuffer(cIcbSlice.buffer(), cIcbSlice.offset(),
cSrcSlice.buffer(), cSrcSlice.offset(), cIcbSlice.length());
});
ThrottleAllocationLocked();
}
void D3D11Initializer::InitDeviceLocalBuffer(
D3D11Buffer* pBuffer,
const D3D11_SUBRESOURCE_DATA* pInitialData) {

9
src/d3d11/d3d11_initializer.h
View File

@ -3,7 +3,9 @@
#include "../dxvk/dxvk_staging.h"
#include "d3d11_buffer.h"
#include "d3d11_shader.h"
#include "d3d11_texture.h"
#include "d3d11_view_uav.h"
namespace dxvk {
@ -57,6 +59,11 @@ namespace dxvk {
void InitUavCounter(
D3D11UnorderedAccessView* pUav);
void InitShaderIcb(
D3D11CommonShader* pShader,
size_t IcbSize,
const void* pIcbData);
private:
dxvk::mutex m_mutex;
@ -117,4 +124,4 @@ namespace dxvk {
};
}
}

18
src/d3d11/d3d11_shader.cpp
View File

@ -64,19 +64,17 @@ namespace dxvk {
if (icb.size) {
DxvkBufferCreateInfo info = { };
info.size = align(icb.size, 256u);
info.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
info.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT
| VK_BUFFER_USAGE_TRANSFER_DST_BIT;
info.stages = util::pipelineStages(m_shader->info().stage);
info.access = VK_ACCESS_UNIFORM_READ_BIT;
info.access = VK_ACCESS_UNIFORM_READ_BIT
| VK_ACCESS_TRANSFER_WRITE_BIT;
info.debugName = "Icb";
VkMemoryPropertyFlags memFlags
= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
| VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
| VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
m_buffer = pDevice->GetDXVKDevice()->createBuffer(info, memFlags);
std::memcpy(m_buffer->mapPtr(0), icb.data, icb.size);
std::memset(m_buffer->mapPtr(icb.size), 0, info.size - icb.size);
m_buffer = pDevice->GetDXVKDevice()->createBuffer(info, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
// Upload immediate constant buffer to VRAM
pDevice->InitShaderIcb(this, icb.size, icb.data);
}
pDevice->GetDXVKDevice()->registerShader(m_shader);