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-rw-r--r--src/core/hle/service/nvflinger/nvflinger.cpp2
-rw-r--r--src/video_core/gpu.cpp7
-rw-r--r--src/video_core/gpu.h5
3 files changed, 9 insertions, 5 deletions
diff --git a/src/core/hle/service/nvflinger/nvflinger.cpp b/src/core/hle/service/nvflinger/nvflinger.cpp
index 52623cf89..9810d2c64 100644
--- a/src/core/hle/service/nvflinger/nvflinger.cpp
+++ b/src/core/hle/service/nvflinger/nvflinger.cpp
@@ -192,7 +192,7 @@ void NVFlinger::Compose() {
const auto& igbp_buffer = buffer->get().igbp_buffer;
- const auto& gpu = system.GPU();
+ auto& gpu = system.GPU();
const auto& multi_fence = buffer->get().multi_fence;
for (u32 fence_id = 0; fence_id < multi_fence.num_fences; fence_id++) {
const auto& fence = multi_fence.fences[fence_id];
diff --git a/src/video_core/gpu.cpp b/src/video_core/gpu.cpp
index 095660115..b9c5c41a2 100644
--- a/src/video_core/gpu.cpp
+++ b/src/video_core/gpu.cpp
@@ -66,19 +66,20 @@ const DmaPusher& GPU::DmaPusher() const {
return *dma_pusher;
}
-void GPU::WaitFence(u32 syncpoint_id, u32 value) const {
+void GPU::WaitFence(u32 syncpoint_id, u32 value) {
// Synced GPU, is always in sync
if (!is_async) {
return;
}
MICROPROFILE_SCOPE(GPU_wait);
- while (syncpoints[syncpoint_id].load(std::memory_order_relaxed) < value) {
- }
+ std::unique_lock lock{sync_mutex};
+ sync_cv.wait(lock, [=]() { return syncpoints[syncpoint_id].load() >= value; });
}
void GPU::IncrementSyncPoint(const u32 syncpoint_id) {
syncpoints[syncpoint_id]++;
std::lock_guard lock{sync_mutex};
+ sync_cv.notify_all();
if (!syncpt_interrupts[syncpoint_id].empty()) {
u32 value = syncpoints[syncpoint_id].load();
auto it = syncpt_interrupts[syncpoint_id].begin();
diff --git a/src/video_core/gpu.h b/src/video_core/gpu.h
index ecc338ae9..b648317bb 100644
--- a/src/video_core/gpu.h
+++ b/src/video_core/gpu.h
@@ -6,6 +6,7 @@
#include <array>
#include <atomic>
+#include <condition_variable>
#include <list>
#include <memory>
#include <mutex>
@@ -181,7 +182,7 @@ public:
virtual void WaitIdle() const = 0;
/// Allows the CPU/NvFlinger to wait on the GPU before presenting a frame.
- void WaitFence(u32 syncpoint_id, u32 value) const;
+ void WaitFence(u32 syncpoint_id, u32 value);
void IncrementSyncPoint(u32 syncpoint_id);
@@ -312,6 +313,8 @@ private:
std::mutex sync_mutex;
+ std::condition_variable sync_cv;
+
const bool is_async;
};