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renderer: remove global BufferCache locking

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This commit is contained in:
nmzik
2026-08-08 08:02:35 +02:00
parent 1d5f3c8f66
commit 698c9f802f
3 changed files with 143 additions and 220 deletions
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tests/ShaderRecompilerComputeTests.cpp
+9 -31
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@@ -1642,6 +1642,7 @@ public:
auto& gpu_scheduler = context.GetCommandScheduler();
auto processor = std::make_unique<CommandProcessor>(context);
gpu.SendCommandSync([&] {
processor->BufferInit();
SubmitInfo blocked_submit;
blocked_submit.AddWait(blocked_timeline, release_tick);
gpu_scheduler.Flush(blocked_submit);
@@ -3228,40 +3229,17 @@ public:
"prefix, or transferred ownership");
auto& buffer_cache = resources.GetBufferCache();
Require(name, "formatted lock-handoff fixture",
!buffer_cache.IsRegionRegistered(mip_desc.info.data.address,
mip_desc.info.data.size),
"formatted image already had a cached Buffer owner");
BufferBinding mip_formatted;
std::binary_semaphore obtain_entered {0};
std::binary_semaphore obtain_complete {0};
std::binary_semaphore buffer_visible {0};
auto texture_lock = TextureCacheTestAccess::Lock(texture_cache);
gpu.SendCommand([&] {
obtain_entered.release();
BufferBinding mip_formatted;
bool formatted_owner_was_absent = false;
gpu.SendCommandSync([&] {
formatted_owner_was_absent =
!buffer_cache.IsRegionRegistered(mip_desc.info.data.address,
mip_desc.info.data.size);
mip_formatted = buffer_cache.ObtainBuffer(command, mip_desc.info.data.address,
mip_desc.info.data.size, false, true, true);
obtain_complete.release();
});
obtain_entered.acquire();
std::jthread buffer_probe([&] {
while (!buffer_cache.IsRegionRegistered(mip_desc.info.data.address,
mip_desc.info.data.size)) {
std::this_thread::yield();
}
buffer_visible.release();
});
const bool buffer_released_before_texture =
buffer_visible.try_acquire_for(std::chrono::seconds(2));
texture_lock.unlock();
if (!buffer_released_before_texture) {
buffer_visible.acquire();
}
obtain_complete.acquire();
buffer_probe.join();
Require(name, "formatted cache lock handoff", buffer_released_before_texture,
"formatted Buffer acquisition retained the BufferCache lock while waiting for "
"TextureCache");
Require(name, "formatted cache fixture", formatted_owner_was_absent,
"formatted image already had a cached Buffer owner");
Require(name, "formatted Buffer path",
mip_formatted.owner != nullptr && mip_formatted.buffer != nullptr &&
texture_cache.GetImage(mip_image).IsGpuModified(),