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authorbunnei <bunneidev@gmail.com>2020-01-06 06:09:57 +0100
committerGitHub <noreply@github.com>2020-01-06 06:09:57 +0100
commit89fc75d76993d294ee106402bc78becc95d0bb38 (patch)
tree5efd323f3848e1203a72dc69f52f0cd02776ac48 /src/video_core
parentMerge pull request #3264 from ReinUsesLisp/vk-descriptor-pool (diff)
parentvideo_core: Block in WaitFence. (diff)
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Diffstat (limited to 'src/video_core')
-rw-r--r--src/video_core/gpu.cpp7
-rw-r--r--src/video_core/gpu.h5
2 files changed, 8 insertions, 4 deletions
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;
};