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-rw-r--r--src/video_core/engines/maxwell_dma.cpp20
-rw-r--r--src/video_core/engines/maxwell_dma.h2
2 files changed, 21 insertions, 1 deletions
diff --git a/src/video_core/engines/maxwell_dma.cpp b/src/video_core/engines/maxwell_dma.cpp
index 67388d980..1fc1358bc 100644
--- a/src/video_core/engines/maxwell_dma.cpp
+++ b/src/video_core/engines/maxwell_dma.cpp
@@ -53,7 +53,6 @@ void MaxwellDMA::Launch() {
// TODO(Subv): Perform more research and implement all features of this engine.
const LaunchDMA& launch = regs.launch_dma;
- ASSERT(launch.semaphore_type == LaunchDMA::SemaphoreType::NONE);
ASSERT(launch.interrupt_type == LaunchDMA::InterruptType::NONE);
ASSERT(launch.data_transfer_type == LaunchDMA::DataTransferType::NON_PIPELINED);
ASSERT(regs.dst_params.origin.x == 0);
@@ -79,6 +78,7 @@ void MaxwellDMA::Launch() {
CopyPitchToBlockLinear();
}
}
+ ReleaseSemaphore();
}
void MaxwellDMA::CopyPitchToPitch() {
@@ -244,4 +244,22 @@ void MaxwellDMA::FastCopyBlockLinearToPitch() {
memory_manager.WriteBlock(regs.offset_out, write_buffer.data(), dst_size);
}
+void MaxwellDMA::ReleaseSemaphore() {
+ const auto type = regs.launch_dma.semaphore_type;
+ const GPUVAddr address = regs.semaphore.address;
+ switch (type) {
+ case LaunchDMA::SemaphoreType::NONE:
+ break;
+ case LaunchDMA::SemaphoreType::RELEASE_ONE_WORD_SEMAPHORE:
+ memory_manager.Write<u32>(address, regs.semaphore.payload);
+ break;
+ case LaunchDMA::SemaphoreType::RELEASE_FOUR_WORD_SEMAPHORE:
+ memory_manager.Write<u64>(address, static_cast<u64>(regs.semaphore.payload));
+ memory_manager.Write<u64>(address + 8, system.GPU().GetTicks());
+ break;
+ default:
+ UNREACHABLE_MSG("Unknown semaphore type: {}", static_cast<u32>(type.Value()));
+ }
+}
+
} // namespace Tegra::Engines
diff --git a/src/video_core/engines/maxwell_dma.h b/src/video_core/engines/maxwell_dma.h
index a04514425..2692cac8a 100644
--- a/src/video_core/engines/maxwell_dma.h
+++ b/src/video_core/engines/maxwell_dma.h
@@ -224,6 +224,8 @@ private:
void FastCopyBlockLinearToPitch();
+ void ReleaseSemaphore();
+
Core::System& system;
MemoryManager& memory_manager;