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[dxvk] Split barriers with very large VkDependencyInfo structures

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Works around an AMD driver bug. Fixes #3138.
This commit is contained in:
Philip Rebohle 2022-12-20 03:10:44 +01:00
parent f4f4f3647f
commit 12901b52f1
1 changed files with 41 additions and 4 deletions
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45
src/dxvk/dxvk_barrier.cpp
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@ -327,12 +327,49 @@ namespace dxvk {
depInfo.pImageMemoryBarriers = m_imgBarriers.data();
}
if (depInfo.memoryBarrierCount + depInfo.bufferMemoryBarrierCount + depInfo.imageMemoryBarrierCount) {
commandList->cmdPipelineBarrier(m_cmdBuffer, &depInfo);
commandList->addStatCtr(DxvkStatCounter::CmdBarrierCount, 1);
uint32_t totalBarrierCount = depInfo.memoryBarrierCount
+ depInfo.bufferMemoryBarrierCount
+ depInfo.imageMemoryBarrierCount;
this->reset();
if (!totalBarrierCount)
return;
// AMDVLK (and -PRO) will just crash if they encounter a very large structure
// in one vkCmdPipelineBarrier2 call, so we need to split the barrier into parts.
constexpr uint32_t MaxBarriersPerCall = 512;
if (unlikely(totalBarrierCount > MaxBarriersPerCall)) {
VkDependencyInfo splitDepInfo = { VK_STRUCTURE_TYPE_DEPENDENCY_INFO };
for (uint32_t i = 0; i < depInfo.memoryBarrierCount; i += MaxBarriersPerCall) {
splitDepInfo.memoryBarrierCount = std::min(depInfo.memoryBarrierCount - i, MaxBarriersPerCall);
splitDepInfo.pMemoryBarriers = depInfo.pMemoryBarriers + i;
commandList->cmdPipelineBarrier(m_cmdBuffer, &splitDepInfo);
}
splitDepInfo = { VK_STRUCTURE_TYPE_DEPENDENCY_INFO };
for (uint32_t i = 0; i < depInfo.bufferMemoryBarrierCount; i += MaxBarriersPerCall) {
splitDepInfo.bufferMemoryBarrierCount = std::min(depInfo.bufferMemoryBarrierCount - i, MaxBarriersPerCall);
splitDepInfo.pBufferMemoryBarriers = depInfo.pBufferMemoryBarriers + i;
commandList->cmdPipelineBarrier(m_cmdBuffer, &splitDepInfo);
}
splitDepInfo = { VK_STRUCTURE_TYPE_DEPENDENCY_INFO };
for (uint32_t i = 0; i < depInfo.imageMemoryBarrierCount; i += MaxBarriersPerCall) {
splitDepInfo.imageMemoryBarrierCount = std::min(depInfo.imageMemoryBarrierCount - i, MaxBarriersPerCall);
splitDepInfo.pImageMemoryBarriers = depInfo.pImageMemoryBarriers + i;
commandList->cmdPipelineBarrier(m_cmdBuffer, &splitDepInfo);
}
} else {
// Otherwise, issue the barrier as-is
commandList->cmdPipelineBarrier(m_cmdBuffer, &depInfo);
}
commandList->addStatCtr(DxvkStatCounter::CmdBarrierCount, 1);
this->reset();
}