From 5b5e60ffeca1a718cd980e74f0528d6ab91788cf Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Wed, 25 Sep 2019 19:43:23 -0400
Subject: GPU_Async: Correct fences, display events and more.

This commit uses guest fences on vSync event instead of an articial fake
fence we had.
It also corrects to keep signaling display events while loading the game
as the OS is suppose to send buffers to vSync during that time.
---
 src/video_core/gpu.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/video_core/gpu.cpp')

diff --git a/src/video_core/gpu.cpp b/src/video_core/gpu.cpp
index 76cfe8107..d94be9c9d 100644
--- a/src/video_core/gpu.cpp
+++ b/src/video_core/gpu.cpp
@@ -3,6 +3,7 @@
 // Refer to the license.txt file included.
 
 #include "common/assert.h"
+#include "common/microprofile.h"
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/memory.h"
@@ -17,6 +18,8 @@
 
 namespace Tegra {
 
+MICROPROFILE_DEFINE(GPU_wait, "GPU", "Wait for the GPU", MP_RGB(128, 128, 192));
+
 GPU::GPU(Core::System& system, VideoCore::RendererBase& renderer, bool is_async)
     : system{system}, renderer{renderer}, is_async{is_async} {
     auto& rasterizer{renderer.Rasterizer()};
@@ -63,6 +66,16 @@ const DmaPusher& GPU::DmaPusher() const {
     return *dma_pusher;
 }
 
+void GPU::WaitFence(u32 syncpoint_id, u32 value) const {
+    // Synced GPU, is always in sync
+    if (!is_async) {
+        return;
+    }
+    MICROPROFILE_SCOPE(GPU_wait);
+    while (syncpoints[syncpoint_id].load() < value) {
+    }
+}
+
 void GPU::IncrementSyncPoint(const u32 syncpoint_id) {
     syncpoints[syncpoint_id]++;
     std::lock_guard lock{sync_mutex};
-- 
cgit v1.2.3


From cfc2f30dc409cbbb36c19c74a98f3017e6d722f2 Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Fri, 11 Oct 2019 13:41:15 -0400
Subject: AsyncGpu: Address Feedback

---
 src/video_core/gpu.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/video_core/gpu.cpp')

diff --git a/src/video_core/gpu.cpp b/src/video_core/gpu.cpp
index d94be9c9d..da7359d4d 100644
--- a/src/video_core/gpu.cpp
+++ b/src/video_core/gpu.cpp
@@ -72,7 +72,7 @@ void GPU::WaitFence(u32 syncpoint_id, u32 value) const {
         return;
     }
     MICROPROFILE_SCOPE(GPU_wait);
-    while (syncpoints[syncpoint_id].load() < value) {
+    while (syncpoints[syncpoint_id].load(std::memory_order_relaxed) < value) {
     }
 }
 
-- 
cgit v1.2.3